Publications

Books

Edited

• K. Takahata, Advances in Micro/Nano Electromechanical Systems and Fabrication Technologies, IN-TECH, 2013, ISBN 978-953-51-1085-9.

• K. Takahata, Micro Electronic and Mechanical Systems, Ed. K. Takahata, IN-TECH, 2009, ISBN 978-953-307-027-8.

Chapters

• M.M. Anwar, K. Takahata, J.D Madden, "Application of Micro-EDM in Patterning Conducting Polymer," in Electrical Discharge Machining (EDM): Types, Technologies and Applications, Ed. M.P. Jahan, Nova Science Publishers, 2015, ISBN 978-1-63483-591-6, pp. 315-328.

• J. Fong, K. Takahata, "Implantable Drug Delivery Chips Enabled by Radio-Controlled Smart Microactuators," in Recent Trends in Targeted Drug Delivery, Ed. Sagar Naskar, SM Group, 2015, ISBN 978-0-9962745-5-5, 19pp.

• M.S. Mohamed Ali, K. Takahata, "Radio-Controlled Wireless MEMS Actuators and Applications," in MEMS: Fundamental Technology and Applications, Eds. Vikas Choudhary and Krzysztof Iniewski, CRC Press, 2013, ISBN 978-1466515819, pp. 331-349.

• K. Takahata, "Micro-Electro-Discharge Machining Technologies for MEMS," in Micro Electronic and Mechanical Systems, Ed. Kenichi Takahata, IN-TECH, 2009, ISBN 978-953-307-027-8, pp. 143-164.

Journals

• M.O. Hassan, A. Nojeh, K. Takahata, "A Microcantilever of Self-Suspended Carbon Nanotube Forest for Material Characterization and Sensing Applications," Applied Physics Letters, 117, 2020, 013101 (5pp).

• F.A. Mohd Ghazali, M.N. Hasan, T. Rehman, M. Nafea, M.S. Mohamed Ali, K. Takahata, "MEMS Actuators for Biomedical Applications: A Review," J. Micromechanics and Microengineering, 30, 2020, 073001 (20pp).

• M. Selvaraj, K. Takahata, "Electrothermally Driven Hydrogel-on-Flex-Circuit Actuator for Smart Steerable Catheters," Micromachines,11(1) - Special Issue "10th Anniversary of Micromachines", 2020, 68 (14pp).

• Y. Yi, J. Chen, K. Takahata, "Wirelessly Powered Resonant-Heating Stent System: Design, Prototyping and Optimization," IEEE Transactions on Antennas and Propagation, 68(1), 2020, pp. 482-490.

• B. Assadsangabi, S.M.H. Jayhooni, M. Short, H. Zeng, K. Takahata, "Ferrofluid-Enabled Micro Rotary-Linear Actuator for Endoscopic Three-Dimensional Imaging and Spectroscopy," Smart Materials and Structures, 29(1), 2020, 015025 (9pp).

• Y. Yi, J. Chen, M. Selvaraj, Y. Hsiang, K. Takahata, "Wireless Hyperthermia Stent System for Restenosis Treatment and Testing with Swine Model," IEEE Transactions on Biomedical Engineering, 67(4), 2020, pp. 1097-1104.
  TBME Featured Article

• J. Chen, Y. Yi, M. Selvaraj, K. Takahata, "Experimental Analysis on Wireless Heating of Resonant Stent for Hyperthermia Treatment of In-Stent Restenosis," Sensors and Actuators A: Physical, 297, 2019, 111527 (10pp).

• Y. Yi, J. Chen, Y. Hsiang, K. Takahata, "Wirelessly Heating Stents via Radiofrequency Resonance toward Enabling Endovascular Hyperthermia," Advanced Healthcare Materials, 8(22), 2019, 1900708 (10pp).

• S.M.H. Jayhooni, M. Short, B. Assadsangabi, G. Hohert, C. Du, H. Zeng, K. Takahata, "Side-Viewing Endoscopic Raman Spectroscopy for Angle-Resolved Analysis of Luminal Organs," Advanced Materials Technologies, 4(12), 2019, 1900364 (9pp).

• M.O. Hassan, A. Nojeh, K. Takahata, "Post-Growth Planarization of Vertically Aligned Carbon Nanotube Forests for Electron-Emission Devices," ACS Applied Nano Materials, 2, 2019, pp. 4594-4604.

• A.M. Abdul-Wahed, A.L. Roy, Z. Xiao, K. Takahata "Direct Writing of Metal Film via Sputtering of Micromachined Electrodes," Journal of Materials Processing Technology, 262, 2018, pp. 403-410.

• X. Chen, B. Assadsangabi, Y. Hsiang, K. Takahata, "Enabling Angioplasty-Ready "Smart" Stents to Detect In-Stent Restenosis and Occlusion," Advanced Science, 5, 2018, 1700560 (10pp).
  Cover Publication
  

• R. Huang, Y. Yi, W. Yu, K. Takahata, "Liquid-Phase Alloy as a Microfluidic Electrode for Micro-Electro-Discharge Patterning," Journal of Materials Processing Technology, 258, 2018, pp. 1-8.
  Featured in Advances in Engineering

• S.M.H. Jayhooni, B. Assadsangabi, K. Takahata, "A Stepping Micromotor based on Ferrofluid Bearing for Side-Viewing Microendoscope Applications," Sensors and Actuators A: Physical, 269, 2018, pp. 258-268.

• Y. Su, K. Zhang, Z. Ye, Z. Xiao, K. Takahata, "Exploration of Micro-Diamagnetic Levitation Rotor," Japanese Journal of Applied Physics, 56, 2017, 126702 (5pp).

• X. Chen, D. Brox, B. Assadsangabi, M.S. Mohamed Ali, K. Takahata, "A Stainless-Steel-Based Implantable Pressure Sensor Chip and its Integration by Microwelding," Sensors and Actuators A: Physical, 257, 2017, pp. 134-144.
  Featured in Advances in Engineering

• M.R.M. Asyraf, M. Rana, T. Saleh, H.D.E. Fan, A.T. Koch, A. Nojeh, K. Takahata, A.G.A. Muthalif, "Optical Anisotropy in Micromechanically Rolled Carbon Nanotube Forest," Electronic Materials Letters, 13(5), 2017, pp. 442-448.

• M.S. us Sarwar, Z. Xiao, T. Saleh, A. Nojeh, K. Takahata, "Micro Glow Plasma for Localized Nanostructural Modification of Carbon Nanotube Forest," Applied Physics Letters, 109, 2016, 081604 (5pp).

• B. Assadsangabi, M.H. Tee, S. Wu, K. Takahata, "Catheter-Based Microrotary Motor Enabled by Ferrofluid for Microendoscope Applications," IEEE/ASME J. Microelectromechanical Systems, 25(3), 2016, pp. 542-548.
  Featured in J-MEMS RightNow

• M.A. Mohd Razib, M.M. Rana, H.D.E. Fan, A.T. Koch, A. Nojeh, K. Takahata, A.B. Suriani, T. Saleh, "Study on Micro-Patterning Process of Vertically Aligned Carbon Nanotubes (VACNTs)," Fullerenes, Nanotubes and Carbon Nanostructures, 24(2), 2016, pp. 88-99.

• Z. Xiao, M. Dahmardeh, M. Vahdani Moghaddam, A. Nojeh, K. Takahata, "Scaling Approach toward Nano Electro-Discharge Machining: Nanoscale Patterning of Carbon Nanotube Forests," Microelectronic Engineering, 150, 2015, pp. 64-70.

• Y. Luo, M. Dahmardeh, X. Chen, K. Takahata, "A Resonant-Heating Stent for Wireless Endohyperthermia Treatment of Restenosis," Sensors and Actuators A: Physical, 236, 2015, pp. 323-333.

• D. Brox, X. Chen, S. Mirabbasi, K. Takahata, "Wireless Telemetry of Stainless-Steel-Based Smart Antenna Stent using a Transient Resonance Method," IEEE Antennas and Wireless Propagation Letters, 15, 2015, pp. 745-747.

• Y. Luo, X. Chen, M. Dahmardeh, K. Takahata, "RF-Powered Stent with Integrated Circuit Breaker for Safeguarded Wireless Hyperthermia Treatment," IEEE/ASME J. Microelectromechanical Systems, 24(5), 2015, pp. 1293-1302.

• Y. Luo, M. Dahmardeh, K. Takahata, "Biocompatible Circuit-Breaker Chip for Thermal Management of Biomedical Microsystems," J. Micromechanics and Microengineering, 25(5), 2015, 055002 (10pp).

• J. Fong, Z. Xiao, K. Takahata, "Micromachined Rectangular-Spiral-Coil Actuator for Radio-Controlled Cantilever-Like Actuation," Sensors and Actuators A: Physical, 226, 2015, pp. 107-115.

• Y. Su, Z. Xiao, Z. Ye, K. Takahata,"Micromachined Graphite Rotor Based on Diamagnetic Levitation," IEEE Electron Device Letters, 3(4), 2015, pp. 393-395.

• Z. Ye, Z. Duan, L. Su, K. Takahata, Y. Su, "Analysis of Multi-Direction Low-Frequency Vibration Energy Harvester using Diamagnetic Levitation," International J. Applied Electromagnetics and Mechanics, 47(3), 2015, pp. 847-860.

• J. Fong, Z. Xiao, K. Takahata, "Wireless Implantable Chip with Integrated Nitinol-Based Pump for Radio-Controlled Local Drug Delivery," Lab on a Chip, 15, pp. 1050-1058, 2015.
  Cover Publication
  One of Lab on a Chip 2015 Hot Articles
  Featured in “Implantable Devices” Themed Collection

• Z. Ye, Z. Duan, K. Takahata, Y. Su, "Motion Characteristics and Output Voltage Analysis of Micro-Vibration Energy Harvester Based on Diamagnetic Levitation," Applied Physics A, 118(1), pp. 91-100, 2015.

• Z. Ye, L. Su, K. Takahata, Y. Su, "FEA Analysis and Working Performance of Micro Vibration Energy Harvester based on Diamagnetic Levitation," Microsystem Technologies, 21(4), 2015, pp. 903-909.

• B. Assadsangabi, X. Chen, D. Brox, K. Takahata, "Ferrofluid Sacrificial Microfabrication of Capacitive Pressure Sensors," IEEE Sensors J., 14(10), 2014, pp. 3442-3447.

• M.S. Mohamed Ali, A. AbuZaiter, C. Schlosser, B. Bycraft, K. Takahata, "Wireless Displacement Sensing of Micromachined Spiral-Coil Actuator Using Resonant Frequency Tracking," Sensors, 14, 2014, pp. 12399-12409.

• X. Chen, D. Brox, B. Assadsangabi, Y. Hsiang, K. Takahata, "Intelligent Telemetric Stent for Wireless Monitoring of Intravascular Pressure and its In Vivo Testing," Biomedical Microdevices, 16(5), 2014, pp. 745-759.

• B. Assadsangabi, M.H. Tee, K. Takahata, "Electromagnetic Microactuator Realized by Ferrofluid-Assisted Levitation Mechanism," IEEE/ASME J. Microelectromechanical Systems, 23(5), 2014, pp. 1112-1120.

• M. Sarwar, M. Dahmardeh, T. Saleh, A. Nojeh, K. Takahata, "Batch-Mode Micropatterning of Carbon Nanotube Forests using UV-LIGA Assisted Micro-Electro-Discharge Machining," Journal of Materials Processing Technology, 214(11), 2014, pp. 2537-2544.

• M. Muntakim Anwar, T. Saleh, J.D. Madden, K. Takahata, "Micropatterning Polypyrrole Conducting Polymer by Pulsed Electrical Discharge," Macromolecular Materials and Engineering, 299(2), 2014, pp. 198-207.
  Cover Publication

• M.S. Mohamed Ali, W.N. Yuan, K. Takahata, "Analysis of Micropatterned Wireless Resonant Heaters for Wireless-Control of MEMS Thermal Actuators," Microsystem Technologies, 20(2), 2014, pp. 235-241.

• M. Dahmardeh, M. Vahdani Moghaddam, M.H. Tee, A. Nojeh, K. Takahata, "The Effects of Three-Dimensional Shaping of Vertically Aligned Carbon-Nanotube Contacts for Micro-Electro-Mechanical Switches," Applied Physics Letters, 103, 2013, 231606 (5pp).

• Z. Xiao, M.S. Sarwar, M. Dahmardeh, M. Vahdani Moghaddam, A. Nojeh, K. Takahata, "Cone-Shaped Forest of Aligned Carbon Nanotubes: An Alternative Probe for Scanning Microscopy," Applied Physics Letters, 103, 2013, 171603 (5pp).

• A. Mehdizadeh, M.S. Mohamed Ali, K. Takahata, S. Al-Sarawi, D. Abbott, "A Recoil Resilient Lumen Support, Design, Fabrication and Mechanical Evaluation," J. Micromechanics and Microengineering, 23, 2013, 065001 (14pp).

• M. Dahmardeh, M.S. Mohamed Ali, T. Saleh, M.H. Tee, M. Vahdani Moghaddam, A. Nojeh, K. Takahata, "High-Power MEMS Switch Enabled by Carbon-Nanotube Contact and Shape-Memory-Alloy Actuator," Physica Status Solidi (A), 210(4), 2013, pp. 631-638.
  Best of PSS 2014
  One of Most Accessed Papers in 2013
  Cover Publication
  

• B. Assadsangabi, M.S. Mohamed Ali, K. Takahata, "Planar Variable Inductor Controlled by Ferrofluid Actuation," IEEE Transactions on Magnetics, 44(4), 2013, pp. 1402-1406.

• A.R. Mohammadi, M.S. Mohamed Ali, Derry Lappin, Colin Schlosser, K. Takahata, "Inductive Antenna Stent: Design, Fabrication, and Characterization," J. Micromechanics and Microengineering, 23, 2013, 025015 (9pp).

• T. Saleh, M. Dahmardeh, A. Nojeh, K. Takahata, "Dry Micro-Electro-Discharge Machining of Carbon-Nanotube Forests Using Sulphur-Hexafluoride," Carbon, 52, 2013, pp. 288-295.

• M.S. Mohamed Ali, B. Bycraft, A. Bsoul, K. Takahata, "Radio-Controlled Microactuator based on Shape-Memory-Alloy Spiral-Coil Inductor," IEEE/ASME J. Microelectromechanical Systems, 22(2), 2013, pp. 331-338.

• T. Saleh, M.V. Moghaddam, M.S. Mohamed Ali, M. Dahmardeh, C.A. Foell, A. Nojeh, K. Takahata, "Transforming Carbon Nanotube Forest from Darkest Absorber to Reflective Mirror," Applied Physics Letters, 101, 2012, 061913 (4pp).

• A. Bsoul, M.S. Mohamed Ali, A. Nojeh, K. Takahata, "Piezoresistive Strain Sensing using Carbon Nanotube Forests Suspended by Parylene-C Membranes," Applied Physics Letters, 100, 2012, 213510 (3pp).

• D. Lappin, A.R. Mohammadi, K. Takahata, "An Experimental Study of Electrochemical Polishing for Micro-Electro-Discharge-Machined Stainless-Steel Stents," J. Materials Science: Materials in Medicine, 23(3), 2012, pp. 349-356.

• B. Assadsangabi, M.S. Mohamed Ali, K. Takahata, "Bidirectional Actuation of Ferrofluid Using Micropatterned Planar Coils Assisted by Bias Magnetic Fields," Sensors and Actuators A: Physical, 173(1), 2012, pp. 219-226.
  Featured in Advances in Engineering

• M.S. Mohamed Ali, B. Bycraft, C. Schlosser, B. Assadsangabi, K. Takahata, "Out-of-Plane Spiral-Coil Inductor Self-Assembled by Locally Controlled Bimorph Actuation," Micro & Nano Letters, 6(12), 2011, pp. 1016-1018.

• T. Saleh, M. Dahmardeh, A. Bsoul, A. Nojeh, K. Takahata, "Field-Emission-Assisted Approach to Dry Micro-Electro-Discharge Machining of Carbon-Nanotube Forests," J. Applied Physics, 110, 2011, 103305 (7pp).

• A.R. Mohammadi, K. Chen, M.S. Mohamed Ali, K. Takahata, "Radio Aneurysm Coils for Noninvasive Detection of Cerebral Emolization Failures: A Preliminary Study," Biosensors and Bioelectronics, 30, 2011 pp. 300-305.
  Featured in Advances in Engineering

• D. Brox, A.R. Mohammadi, K. Takahata, "Non-Lithographically Microfabricated Capacitive Pressure Sensor for Biomedical Applications," IET Electronics Letters, 47(18), 2011, pp. 1015-1017.

• A. Bsoul, M.S. Mohamed Ali, K. Takahata, "Piezoresistive Pressure Sensor Using Vertically Aligned Carbon-Nanotube Forests," IET Electronics Letters, 47(14), 2011, pp. 807-808.
  Featured article in the issue

• M.S. Mohamed Ali, K. Takahata, "Wireless Microfluidic Control with Integrated Shape-Memory-Alloy Actuators Operated by Field Frequency Modulation," J. Micromechanics and Microengineering, 21, 2011, 075005 (10pp).

• M. Dahmardeh, A. Nojeh, K. Takahata, "Possible Mechanism in Dry Micro-Electro-Discharge Machining of Carbon-Nanotube Forests: A study of the Effect of Oxygen," J. Applied Physics, 109, 2011, 093308 (4pp).

• S. Rahimi, E.H. Sarraf, G.K. Wong, K. Takahata, "Implantable Drug Delivery Device Using Frequency-Controlled Wireless Hydrogel Microvalves," Biomedical Microdevices, 13(2), 2011, pp. 267-277.
  
  
• W. Khalid, M.S. Mohamed Ali, M. Dahmardeh, Y. Choi, P. Yaghoobi, A. Nojeh, K. Takahata, "High-Aspect-Ratio, Free-Form Patterning of Carbon Nanotube Forests using Micro-Electro-Discharge Machining," Diamond and Related Materials, 19(11), 2010, pp. 1405-1410.
  One of Most Read Diamond and Related Materials Articles in 2011

• M.S. Mohamed Ali, K. Takahata, "Frequency-Controlled Wireless Shape-Memory-Alloy Microactuators Integrated using an Electroplating Bonding Process," Sensors and Actuators A: Physical, 163(1), 2010, pp. 363-372.

• C.R. Alla Chaitanya, N. Wang, K. Takahata, "MEMS-Based Micro-Electro-Discharge Machining by Electrostatic Actuation of Machining Electrodes on the Workpiece," IEEE/ASME J. Microelectromechanical Systems, 19(3), 2010, pp. 690-699.

• V. Sridhar, K. Takahata, "A Hydrogel-Based Passive Wireless Sensor Using a Flex-Circuit Inductive Transducer," Sensors and Actuators A: Physical, 155, 2009, pp. 58-65.
  
  
• C.R. Alla Chaitanya, K. Takahata, "M³EDM: MEMS-Enabled Micro-Electro-Discharge Machining," J. Micromechanics and Microengineering, 18, 2008, 105009. (7pp)

• K. Takahata, Y.B. Gianchandani, "A Micromachined Capacitive Pressure Sensor Using a Cavity-Less Structure with Bulk-Metal/Elastomer Layers and its Wireless Telemetry Application," Sensors, 8, 2008, pp. 2317-2330.

• K. Takahata, Y.B. Gianchandani, K.D. Wise, "Micromachined Antenna Stents and Cuffs for Monitoring Intraluminal Pressure and Flow," IEEE/ASME J. Microelectromechanical Systems, 15(5), 2006, pp. 1289-1298.

• L.L. Chu, K. Takahata, P. Selvaganapathy, Y.B. Gianchandani, J.L. Shohet, "A Micromachined Kelvin Probe with Integrated Actuator for Microfluidic and Solid-State Applications," IEEE/ASME J. Microelectromechanical Systems, 14(4), 2005, pp. 691-698.

• K. Takahata, Y.B. Gianchandani, "A Planar Approach for Manufacturing Cardiac Stents: Design, Fabrication, and Mechanical Evaluation," IEEE/ASME J. Microelectromechanical Systems, 13(6), 2004, pp. 933-939.

• K. Takahata, Y.B. Gianchandani, "Batch Mode Micro-Electro-Discharge Machining," IEEE/ASME J. Microelectromechanical Systems, 11(2), 2002, pp. 102-110.

• K. Takahata, N. Shibaike, H. Guckel, "High-Aspect-Ratio WC-Co Microstructure Produced by the Combination of LIGA and Micro-EDM," Microsystem Technologies, 6(5), 2000, pp. 175-178.

• K. Takahata, S. Aoki, T. Sato, "Fine Surface Finishing Method for 3-Dimensional Micro Structures," IEICE Transactions on Electronics, E80-C, 2, 1997, pp. 291-296.

Conference Proceedings and Presentations

• S.M.H Jayhooni, B. Assadsangabi, G. Hohert, P. Lane, K. Takahata, "High-Speed and Stepping MEMS Rotary Actuator for Multimodal, 360° Side-Viewing Endoscopic Probes," 33rd IEEE Int'l Conf. Micro Electro Mechanical Systems (MEMS 2020), Vancouver, Canada, January 2020, accepted.

• M.O. Hassan, K. Takahata, A. Nojeh, "A platform for in-situ investigation of the effect of the inter-electrode distance in thermionic energy conversion," 32nd Int'l Vacuum Nanoelectronics Conf. (IVNC 2019), Cincinnati, USA, July 2019 (2pp), Oral Presentation.

• B. Assadsangabi, S.M.H. Jayhooni, T. Stack, K. Takahata, “High-aspect-ratio Needle-Shaped Mold Fabrication using Rosensweig Instability in Ferrofluids,” 20th IEEE Int'l Conf. Solid-State Sensors, Actuators and Microsystems (Transducers 2019), Berlin, Germany, June 2019, pp. 394-397, Oral Presentation

• S.M.H Jayhooni, M. Short, B. Assadsangabi, H. Zeng, K. Takahata, "Side-view Raman Microendoscope with Micro Stepping Motor and its Ex-Vivo Test for Real-Time Cancer Detection," 32nd IEEE Int'l Conf. Micro Electro Mechanical Systems (MEMS 2019), Seoul, South Korea, January 2019, pp. 14-17, Oral Presentation,
  Student Paper Award Nominee

• S.M.H. Jayhooni, M. Short, H. Zeng, K. Takahata, "Using a Stepper Motor to Enhance the Accuracy of Endoscopic Raman Spectroscopy for Improved Characterization of Peripheral Lung Cancers," SPIE Microfluidics, BioMEMS, and Medical Microsystems XVI, San Francisco, USA, January 2018,.

• R. Huang, Y. Yi, W. Yu, K. Takahata, "Micro Electro-Discharge Patterning using Liquid-Phase Microelectrodes," 19th Int'l Conf. Solid-State Sensors, Actuators and Microsystems (Transducers 2017), Kaohsiung, Taiwan, June 2017, pp. 1257-1260.

• X. Chen, B. Assadsangabi, D. Brox, Y. Hsiang, K. Takahata, "A Pressure-Sensing Smart Stent Compatible with Angioplasty Procedure and its In Vivo Testing," 30th IEEE Int'l Conf. Micro Electro Mechanical Systems (MEMS 2017), Las Vegas, USA, January 2017, pp. 133-136, Oral Presentation.

• A.L. Roy, K. Takahata, "A Thermoresponsive Electromechanical Microchip for Temperature Control in Biomedical Smart Implants," 30th IEEE Int'l Conf. Micro Electro Mechanical Systems (MEMS 2017), Las Vegas, USA, January 2017, pp. 460-463.

• A.M. Abdul-Wahed, A.L. Roy, K. Takahata, "Microplasma Drawing of Thermocouple Sensors," IEEE Sensors, Orlando, USA, November 2016, DOI:10.1109/ICSENS.2016.7808951(3pp), Oral Presentation.

• M.R.M Asyraf, M. Rana,  T. Saleh, H.D.E. Fan, A.T. Koch, A. Nojeh, K. Takahata, A.B. Suriani, M.A.G. Muthalif, "Anisotropic Carbon Nanotube for New Type of Angle Sensor Development," Advances in Functional Materials, Jeju Island, South Korea, August 2016, pp. 59-60.

• M. Selvaraj, K. Takahata, "A Steerable Smart Catheter Tip Realized by Flexible Hydrogel Actuator," 29th IEEE Int'l Conf. Micro Electro Mechanical Systems (MEMS 2016), Shanghai, China, January 2016, pp. 161-164, Oral Presentation.

• A.M. Abdul-Wahed, A.L. Roy, Z. Xiao, K. Takahata, "Direct Writing of Thin and Thick Metal Films via Micro Glow Plasma Scanning," 29th IEEE Int'l Conf. Micro Electro Mechanical Systems (MEMS 2016), Shanghai, China, January 2016, pp. 443-446.

• B. Assadsangabi, K. Takahata, "Micro Rotary-Linear Actuator Assited by Ferrofluid Levitation for 3-Dimensional Endoscopic Imaging," 18th IEEE Int'l Conf. Solid-State Sensors, Actuators and Microsystems (Transducers 2015), Anchorage, USA, June 2015, pp. 391-394, Oral Presentation.
  Outstanding Paper Award Finalist

• X. Chen, B. Assadsangabi, K. Takahata, "Stainless Steel based Micromachined Capacitive Pressure Sensor and its Integration by Microwelding," 18th IEEE Int’l Conf. Solid-State Sensors, Actuators and Microsystems (Transducers 2015),Anchorage, USA, June 2015, pp. 1081-1084.

• Y. Su, Z. Ye, Z Xiao, K. Takahata, "Analytical and Experimental Study of Micromachined Graphite Rotor Based on Diamagnetic Levitation," 10th IEEE Int'l Conf. Nano/Micro Engineered and Molecular Systems (NEMS 2015), Xi'an, China, April 2015, pp. 116-119.

• Y. Luo, M. Dahmardeh, K. Takahata, "Biocompatible Circuit-Breaker Chip for Temperature Regulation of Electrothermally Driven Smart Implants," 28th IEEE Int'l Conf. Micro Electro Mechanical Systems (MEMS 2015), Estoril, Portugal, January 2015, pp. 1040-1043.

• M. Chang, M. Dahmardeh, M. Vahdani Moghaddam, S.M. Mirvakili, J.D.W. Madden, K. Takahata, A. Nojeh, "Dimensionality, heat transfer and light-activated cathodes," 58th Int’l Conf. Electron, Ion, Photon Beam Technology and Nanofabrication (EIPBN 2014), Washington DC, USA, May 2014, http://eipbn.omnibooksonline.com/data/papers/2014/P02-2.pdf#page=1 (2pp).

• B. Assadsangabi, M.H. Tee, S. Wu, K. Takahata, “Ferrofluid-Assisted Micro Rotary Motor for Minimally Invasive Endoscopy Applications,” 27th IEEE Int'l Conf. Micro Electro Mechanical Systems (MEMS 2014), San Francisco, USA, January 2014, pp. 200-203, Oral Presentation.

• Y. Luo, M. Dahmardeh, X. Chen, K. Takahata, "Selective RF Heating of Resonant Stent toward Wireless Endohyperthermia for Restenosis Inhibition," 27th IEEE Int'l Conf. Micro Electro Mechanical Systems (MEMS 2014), San Francisco, USA, January 2014, pp. 877-880.

• B. Assadsangabi, X. Chen, D. Brox, K. Takahata, "Microfabrication of Capacitive Pressure Sensors using Ferrofluid Sacrificial Layers," IEEE Sensors, Baltimore, USA, 2013, pp. 703-706, Oral Presentation.
  Best Student Paper Award in track

• M. Vahdani Moghaddam, M. Sawar, Z. Xiao, M. Dahmardeh, K. Takahata, A. Nojeh, "Field-Emission from Carbon Nanotube Cones Fabricated by Micro-Electro-Eischarge Machining," 26th Int’l Vacuum Nanoelectronics Conf. (IVNC 2013), Roanoke, USA, 2013, DOI: 10.1109/IVNC.2013.6624743 (2pp).

• X. Chen, L. Song, B. Assadsangabi, J. Fang, M.S. Mohamed Ali, K. Takahata, "Wirelessly Addressable Heater Array for Centrifugal Microfluidics and Escherichia Coli Sterilization," 35th IEEE Int’l Conf. Engineering in Medicine and Biology Society (EMBS 2013), Osaka, Japan, 2013, pp. 5505-5508.

• M. Chang, M. Vahdani Moghaddam, A. Khoshaman, M.S. Mohammed Ali, M. Dahmardeh, K. Takahata, A. Nojeh, "High Temperature Gradient in a Conductor: Carbon Nanotube Forest under the "Heat Trap" Condition," 57th Int’l Conf. Electron, Ion, Photon Beam Technology and Nanofabrication (EIPBN 2013), Nashville, USA, 2013, http://eipbn.omnibooksonline.com/data/papers/2013/P11-08.pdf#page=1 (2pp).

• B. Assadsangabi, M.H. Tee, K. Takahata, "Ferrofluid-Assisted Levitation Mechanism for Micromotor Applications," 17th IEEE Int’l Conf. Solid-State Sensors, Actuators and Microsystems (Transducers 2013), Barcelona, Spain, 2013, pp. 2720-2723, Oral Presentation.

• K. Keikhosravy, P. Kamalinejad, S. Mirabbasi, K. Takahata, V.C.M. Leung, "An Ultra-Low-Power Monitoring System for Inductively Coupled Biomedical Implants," IEEE Int'l Symp. Circuits and Systems (ISCAS), Beijing, China, 2013, pp. 2283-2286.

• B. Assadsangabi, M.S. Mohamed Ali, K. Takahata, "Ferrofluid-Based Variable Inductor," 25th IEEE Int'l Conf. Micro Electro Mechanical Systems (MEMS 2012), Paris, France, January 2012, pp. 1121-1124.

• T. Saleh, M. Dahmardeh, A. Bsoul, A. Nojeh, K. Takahata, "High-Precision Dry Micro-Electro-Discharge Machining of Carbon-Nanotube Forests with Ultralow Discharge Energy," 25th IEEE Int'l Conf. Micro Electro Mechanical Systems (MEMS 2012), Paris, France, January 2012, pp. 259-262.

• D. Brox, A. Rashidi Mohammadi, K. Takahata, "Non-Lithographically Micromachined Capacitive Pressure Sensor Based on Stainless Steel for Biomedical Applications," IEEE Sensors, Limerick, Ireland, October 2011, pp. 312-315.

• M.S. Mohamed Ali, K. Takahata, “Selective RF Wireless Control of Integrated Bulk-Micromachined Shape-Memory-Alloy Actuators and its Microfluidic Application,” 24th IEEE Int'l Conf. Micro Electro Mechanical Systems (MEMS 2011), Cancun, Mexico, 2011, pp. 1269-1272.

• S. Rahimi, K. Takahata, “A Wireless Implantable Drug Delivery Device with Hydrogel Microvalves Controlled by Field-Frequency Tuning,” 24th IEEE Int'l Conf. Micro Electro Mechanical Systems (MEMS 2011), Cancun, Mexico, 2011, pp. 1019-1022.

• M. Dahmardeh, W. Khalid, M.S. Mohamed Ali, Y. Choi, P. Yaghoobi, A. Nojeh, K. Takahata, “High-Aspect-Ratio, 3-D Micromachining of Carbon-Nanotube Forests by Micro-Electro-Discharge Machining in Air,” 24th IEEE Int'l Conf. Micro Electro Mechanical Systems (MEMS 2011), Cancun, Mexico, 2011, pp. 272-275.

• M.S. Mohamed Ali, K. Takahata, "A Wirelessly Controlled Shape-Memory-Alloy MEMS Gripper Microfabricated Using an Electroplating-Based Bonding Process," Solid-State Sensor, Actuator and Microsystems Workshop (Hilton Head 2010), Hilton Head Island, SC, USA, 2010, pp. 396-399.

• E.H. Sarraf, G.K. Wong, K. Takahata, "Frequency-Selectable Wireless Actuation of Hydrogel Using Micromachined Resonant Heaters toward Implantable Drug Delivery Applications," 15th IEEE Int'l Conf. Solid-State Sensors, Actuators and Microsystems (Transducers 2009), Denver, CO, USA, June 2009, pp. 1525-1528, Oral Presentation.

• C.R. Alla Chaitanya, K. Takahata, "MEMS-Based Batch-Mode Micro-Electro-Discharge Machining Using Microelectrode Arrays Actuated by Hydrodynamic Force," 22th IEEE Int'l Conf. Micro Electro Mechanical Systems (MEMS 2009), Sorrento, Italy, 2009, pp. 705-708.

• C.R. Alla Chaitanya, K. Takahata, "MEMS-Enabled Micro-Electro-Discharge Machining (M³EDM) Using Microelectrode Actuation by Hydrodynamic Force," 19th MicroMechanics Workshop (MME 2008), Aachen, Germany, 2008, pp. 351-354.

• K. Takahata, Y.B. Gianchandani, "A Cavity-Less Micromachined Capacitive Pressure Sensor for Wireless Operation in Liquid Ambient," Solid-State Sensor, Actuator and Microsystems Workshop (Hilton Head 2008), Hilton Head Island, SC, USA, 2008, pp. 300-303.

• V. Sridhar, K. Takahata, "A Hydrogel-Based Wireless Sensor Using Micromachined Variable Inductors with Folded Flex-Circuit Structures for Biomedical Applications," 21th IEEE Int'l Conf. Micro Electro Mechanical Systems (MEMS 2008), Tucson, AL, USA, 2008, pp. 70-73, Oral Presentation.

• C.R. Alla Chaitanya, K. Takahata, "Micro-Electro-Discharge Machining by MEMS Actuators with Planar Electrodes Microfabricated on the Work Surfaces," 21th IEEE Int'l Conf. Micro Electro Mechanical Systems (MEMS 2008), Tucson, AL, USA, 2008, pp. 375-378.

• K. Takahata, Y.B. Gianchandani, "Bulk-Metal-Based MEMS Fabricated by Micro-Electro-Discharge Machining," 20th IEEE Canadian Conf. Electrical and Computer Engineering (CCECE 2007), Vancouver, Canada, 2007, pp. 1-4, Oral Presentation.

• K. Takahata, Y.B. Gianchandani, "A Micromachined Polyurethane/Stainless-Steel Capacitive Pressure Sensor Without Cavity and Diaphragm," 13th IEEE Int'l Conf. Solid-State Sensors, Actuators and Microsystems (Transducers 2005), Seoul, Korea, 2005, pp. 483-486.

• K. Takahata, Y.B. Gianchandani, "Micromachined Intraluminal Devices for Active and Passive Electromagnetic Measurements of Flow," 18th IEEE Int'l Conf. Micro Electro Mechanical Systems (MEMS 2005), Miami Beach, FL, USA, 2005, pp. 863-866, Oral Presentation.

• K. Takahata, Y.B. Gianchandani, "A Micromachined Stainless Steel Cuff for Electromagnetic Measurement of Flow in Blood Vessels," Solid-State Sensor, Actuator and Microsystems Workshop (Hilton Head 2004), Hilton Head Island, SC, USA, 2004, pp. 290-293.

• K. Takahata, A. DeHennis, K.D. Wise, Y.B. Gianchandani, "A Wireless Microsensor for Monitoring Flow and Pressure in a Blood Vessel Utilizing a Dual-Inductor Antenna Stent and Two Pressure Sensors," 17th IEEE Int'l Conf. Micro Electro Mechanical Systems (MEMS 2004), Maastricht, The Netherlands, 2004, pp. 216-219, Oral Presentation.

• K. Takahata, A. DeHennis, K.D. Wise, Y.B. Gianchandani, "Stentenna: A Micromachined Antenna Stent for Wireless Monitoring of Implantable Microsensors," 25th IEEE Int'l Conf. Engineering in Medicine and Biology Society (EMBS 2003), Cancun, Mexico, 2003, pp. 3360-3363, Oral Presentation.

• L.L. Chu, K. Takahata, P. Selvaganapathy, J.L. Shohet, Y.B. Gianchandani, "A Micromachined Kelvin Probe for Surface Potential Measurements in Microfluidic Channels and Solid-State Applications," 12th IEEE Int'l Conf. Solid-State Sensors, Actuators and Microsystems (Transducers 2003), Boston, MA, USA, 2003, pp. 384-387, Oral Presentation.

• K. Takahata, Y.B. Gianchandani, "Coronary Artery Stents Microfabricated from Planar Metal Foil: Design, Fabrication, and Mechanical Testing," 16th IEEE Int'l Conf. Micro Electro Mechanical Systems (MEMS 2003), Kyoto, Japan, 2003, pp. 462-465, Oral Presentation.

• K. Takahata, Y.B. Gianchandani, "Parallel Discharge with Partitioned Electrode Arrays for Accelerated Batch Mode Micro-EDM," 11th IEEE Int'l Conf. Solid-State Sensors, Actuators and Microsystems (Transducers 2001), Munich, Germany, 2001, pp. 1598-1601.

• C.A. Grimes, M.K. Jain, R.S. Singh, Q. Cai, A. Mason, K. Takahata, Y. Gianchandani, "Magnetoelastic Microsensors for Environmental Monitoring," 14th IEEE Int'l Conf. Micro Electro Mechanical Systems (MEMS 2001), Interlaken, Switzerland, 2001, pp. 278-281.

• K. Takahata, Y.B. Gianchandani, "Batch Mode Micro-EDM for High-Density and High-Throughput Micromachining," 14th IEEE Int'l Conf. Micro Electro Mechanical Systems (MEMS 2001), Interlaken, Switzerland, 2001, pp. 72-75.

• T. Wada, T. Masaki, K. Takahata, "Study of Micro V-Groove Machining Method : Application to Three Dimensional Surface," JSME Annual Meeting, 2000(3), pp. 533-534.

• K. Takahata, N. Shibaike, H. Guckel, "High-Aspect-Ratio WC-Co Microstructure Produced by the Combination of LIGA and Micro-EDM," 3rd Int'l Workshop on High Aspect Ratio Microstructure Technology (HARMST 1999), Chiba, Japan, 1999, pp. 100-101.

• K. Takahata, N. Shibaike, H. Guckel, "A Novel Micro Electro-Discharge Machining Method Using Electrodes Fabricated by the LIGA Process," 12th IEEE Int'l Conf. Micro Electro Mechanical Systems (MEMS 1999), Orlando, FL, USA, 1999, pp. 238-243.

• K. Takahata, T. Masaki, "High Precision Machining of Micro V-grooves," JSPE Kansai-Region Annual Meeting, 1998, pp. 35-36.. (in Japanese)

• K. Takahata, S. Aoki, T. Sato, "Fine Surface Finishing Method for 3-Dimensional Micro Structures," 9th IEEE Int'l Workshop on Micro Electro Mechanical Systems (MEMS 1996), San Diego, CA, USA, 1996, pp. 73-78, Oral Presentation.

• K. Nakamura, K. Takahata, A. Ono, H. Ogura, S. Aoki, "An Electrostatic Micro Wobble Motor for Nondestructive Testing," 1st Int'l Micromachine Symp., Tokyo, Japan, 1995, pp. 147-150.

• K. Takahata, S. Aoki, T. Sato, "A Study on Surface Finishing Method for Micro-Parts," Asian Electrical-Machining Symp. and Annual Meeting of JSEME, 1995, pp. 67-68.. (in Japanese)

• K. Takahata, S. Aoki, T. Sato, "A Study on Finishing Method for Surfaces Machined by Micro-EDM," Spring Annual Meeting of JSPE, 1995, pp. 963-964.. (in Japanese)

Invited Papers

• K. Takahata, S. Aoki, "Micromachining Based on Micro Electro-Discharge Machining," KEC Joho, No. 172, 2000, pp. 21-24. (in Japanese)

• K. Takahata, S. Aoki, "Micromachining Using Micro Electro-Discharge Machining," Proc. 1st SEMI Micromachine Seminar, 1999, pp. 3-6. (in Japanese)

• K. Takahata, S. Aoki, "Micromachining and Micro Surface Finishing Method," Proc. 26th JSDMT Molding Technology Seminar, 1996, pp. 41-45. (in Japanese)

Patents

Issued

• Y.B. Gianchandani, K. Takahata, “Assembly and Planar Structure for Use therein which is Expandable into a 3-D Structure such as a Stent and Device for Making the Planar Structure, University of Michigan, U.S. Patent No. 9440302, issued 9/13/2016.

• K. Takahata, M.S. Mohamed Ali, S. Rahimi, "Wireless Microactuators and Control Method," University of British Columbia, U.S. Patent No. 9370628, issued 6/21/2016.

• Y.B. Gianchandani, K. Takahata, "Electromagnetic Flow Sensor Device," University of Michigan, U.S. Patent No. 7922667, issued 4/12/2011.

• K. Takahata, “Flexible Inductive Sensor” 3M Company, U.S. Patent No. 7498802 issued 3/3/2009.

• Y.B. Gianchandani, K. Takahata, K.D. Wise, A. DeHennis, “Antenna Stent Device for Wireless, Intraluminal Monitoring,” University of Michigan, Ann Arbor, U.S. Patent No. 7452334, issued 11/18/2008.

• Y.B. Gianchandani, L.L. Chu, K. Takahata, P. Selvaganapathy, J.L. Shohet, "Micromachined Probe Apparatus and Methods for Making and Using Same to Characterize Liquid in a Fluidic Channel and Map Embedded Charge in a Sample on a Substrate," University of Michigan, Ann Arbor, U.S. Patent No. 7116115 issued 10/3/2006.

• K. Takahata, N. Shimizu, A. Ono, T. Asano, N. Shibaike, “Manufacture of Tool Electrode for Electric Discharge Machining and Electric-Discharge Machining Method Therewith,” Matsushita Electric Industrial Co. Ltd., Japanese Patent No. 3750268 issued 3/1/2006.

• Y.B. Gianchandani, K. Takahata, "Micro-Electro-Discharge Machining Method and Apparatus," Wisconsin Alumni Research Foundation, U.S. Patent No. 6624377 issued 9/23/2003.

• Y.B. Gianchandani, K. Takahata, "Micro-Electro-Discharge Machining Utilizing Semiconductor Electrodes," Wisconsin Alumni Research Foundation, U.S. Patent No. 6586699 issued 7/1/2003.

• N. Furuya, T Ono, N. Horiuchi, K. Yamanaka, T. Miyata, K. Takahata, "Discharge-Pumped Gas Laser with Independent Preionizing Circuit," Matsushita Electric Industrial Co. Ltd., U.S. Patent No. 5293390, issued 5/8/1994.

• T. Ono, N. Horiuchi, K. Yamanaka, K. Takahata, N. Furuya, T. Miyata, "Discharge-Pumped Gas Laser with Baffle Partition for Controlled Laser Gas Flow at Preionizers," Matsushita Electric Industrial Co. Ltd., U.S. Patent No. 5239553, issued 8/24/1993.

Published/Pending (partial list)

• K. Takahata, "Inductive Sensor," 3M, USA.

• M. Takahashi, K. Takahata, "Flattening Method," Matsushita Electric Industrial Co., Japan.

• K. Takahata, "Method of Manufacturing for Punching Tool," Matsushita Electric Industrial Co., Japan.

• N. Wada, K. Takahata, "Nozzle Hole Machining Method," Matsushita Electric Industrial Co., Japan.

• K. Takahata, K. Otsuka, "Method and Device for Flattening Machining," Matsushita Electric Industrial Co., Japan.

• K. Takahata, "Manufacture of Electrode for Working Tool and Machining Method," Matsushita Electric Industrial Co., Japan.

• K. Takahata, "Electric Discharge Machining Method and Its Device," Matsushita Electric Industrial Co., Japan.

• K. Takahata, "V-Shaped Groove Forming Method and Manufacture of Tool to be Used for That Method," Matsushita Electric Industrial Co., Japan.

• K. Takahata, N. Shibaike, N. Shimizu, A. Ono, "Method and Device for Surface Machining," Matsushita Electric Industrial Co., Japan.

• N. Shimizu, S. Maeda, K. Takahata, A. Ono, N. Shibaike, "Micro-Part Assembling Method," Matsushita Electric Industrial Co., Japan.

• K. Takahata, S. Aoki, "Method and Device for Mirror Finish," Matsushita Electric Industrial Co., Japan.

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