Papers

2012

• "Diameter dependence of 1/f noise in carbon nanotube field effect transistors using noise spectroscopy."
  Toshio Kawahara, Satarou Yamaguchi, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Shin Mizutani, Kenji Itaka
  Appl. Surf. Sci. 267 (2013) 101-105. (August)
• "Horizontally Aligned Carbon Nanotubes on a Quartz Substrate for Chemical and Biological Sensing."
  Satoshi Okuda, Shogo Okamoto, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
  J. Phys. Chem. C 116 (2012) 19490-19495. (August)
• "Direct Synthesis of Graphene on SiO2 Substrates by Transfer-Free Processes."
  Kenta Gumi, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
  Jpn. J. Appl. Phys. 51 (2012) 06FD12. (June)
• "Carbon Nanotube-Based Floating Gate Memories with High-k Dielectrics."
  Yusuke Fujii, Takahiro Ohori, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
  Jpn. J. Appl. Phys. 51 (2012) 06FD11. (June)
• "Immunosensors Based on Graphene Field-Effect Transistors Fabricated Using Antigen-Binding Fragment."
  Shogo Okamoto, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
  Jpn. J. Appl. Phys. 51 (2012) 06FD08. (June)
• "Carrier Transport Properties of the Field Effect Transistors with Graphene Channel Prepared by Chemical Vapor Deposition."
  Ryota Negishi, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, and Yoshihiro Kobayashi
  Jpn. J. Appl. Phys. 51 (2012) 06FD03. (June)
• "Fragment-Modified Graphene FET for Highly Sensitive Detection of Antigen-Antibody Reaction."
  Shogo Okamoto, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
  Proc. of The 14th International Meeting on Chemical Sensors, (2012) 519-522. (May)
• "Selective ion sensors based on ionophore-modified graphene field-effect transistors."
  Kenzo Maehashi, Yasuyuki Sofue, Shogo Okamoto, Yasuhide Ohno, Koichi Inoue, and Kazuhiko Matsumoto
  Proc. of The 14th International Meeting on Chemical Sensors, (2012) 305-308. (May)
• "Novel charge transport in DNA-templated nanowires."
  Guoqing Wang, Hirofumi Tanaka, Liu Hong, Yasutaka Matsuo, Kenichi Niikura, Masuhiro Abe, Kazuhiko Matsumoto, Takuji Ogawa, and Kuniharu Ijiro
  J. Mater. Chem. 22 (2012) 13691-13697. (May)
• "Electric-field-induced band gap of bilayer graphene in ionic liquid."
  Yusuke Yamashiro, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
  J. Vac. Soc. Technol. B 30 (2012) 03D111. (April)
  
• "Complementary voltage inverters with large noise margin based on carbon nanotube field-effect transistors with SiN_x top-gate insulators."
  Kenzo Maehashi, Takaomi Kishimoto, Yasuhide Ohno, Koichi Inoue, and Kazuhiko Matsumoto
  J. Vac. Soc. Technol. B 30 (2012) 03D108. (March)
• "Schottky barrier control gate-type carbon nanotube field-effect transistor biosensors."
  Masuhiro Abe, Yasuhide Ohno, and Kazuhiko Matsumoto
  J. Appl. Phys. 111 (2012) 034506. (February)
• "Fabrication of new single-walled carbon nanotubes microelectrode for electrochemical sensors application."
  Nguyen Xuan Viet, Yoshiaki Ukita, Miyuki Chikae, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Pham Hung Viet, Yuzuru Takamura
  Talanta 91 (2012) 88-94. (January)

2011

• "Gate voltage control of stochastic resonance in carbon nanotube field effect transistors."
  Toshio Kawahara, Satarou Yamaguchi, Kenzo Maehashi, Yasuhide Ohno, Kazuhiko Matsumoto, and Shin Mizutani
  Proceedings of 21st International Conference on Noise and Fluctuations 364-367 (2011). (Augast)
• "Label-Free Aptamer-Based Immunoglobulin Sensors Using Graphene Field-Effect Transistors."
  Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
  Jpn. J. Appl. Phys. 50 (2011) 070120. (July)
• "Highly Sensitive Electrical Detection of Sodium Ions Based on Graphene Field-Effect Transistors."
  Yasuyuki Sofue, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
  Jpn. J. Appl. Phys. 50 (2011) 06GE07. (June)
• "Thickness Control of Graphene Overlayer via Layer-by-Layer Growth on Graphene Templates by Chemical Vapor Deposition."
  Ryota Negishi, Hiroki Hirano, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, and Yoshihiro Kobayashi
  Jpn. J. Appl. Phys. 50 (2011) 06GE04. (June)
• "Robust Noise Characteristics in Carbon Nanotube Transistors Based on Stochastic Resonance and Their Summing Networks."
  Yasufumi Hakamata, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
  Jpn. J. Appl. Phys. 50 (2011) 06GE03. (June)
• "Quantized characteristics in carbon nanotube-based single-hole memory with a floating nanodot gate."
  Takahiro Ohori, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, Yutaka Hayashi, and Kazuhiko Matsumoto
  Appl. Phys. Lett. 98 (2011) 223101. (May)
  
• "Graphene field-effect transistors for label-free chemical and biological sensors."
  Yasuhide Ohno, Kenzo Maehashi, and Kazuhiko Matsumoto
  SPIE Proceedings of Micro- and Nanotechnology Sensors, Systems, and Applications III 8031-21 (2011). (May)
• "Layer-by-Layer growth of graphene layers on graphene substrates by chemical vapor deposition."
  Ryota Negishi, Hiroki Hirano, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, and Yoshihiro Kobayashi
  Thin Solid Films 519 (2011) 6447-6452. (May)
• "External-Noise-Induced Small-Signal Detection with Solution-Gated Carbon Nanotube Transistor."
  Yasufumi Hakamata, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
  Appl. Phys. Express 4 (2011) 045102. (April)
• "Gate-Induced Cross-Over between Fabry–Perot Interference and Coulomb Blockade in a Single-Walled Carbon Nanotube Transistor with Double-Gate Structure."
  Takafumi Kamimura and Kazuhiko Matsumoto
  Jpn. J. Appl. Phys. 50 (2011) 015101. (January)

2010

• "Label-Free Biosensors Based on Aptamer-Modified Graphene Field-Effect Transistors."
  Yasuhide Ohno, Kenzo Maehashi, and Kazuhiko Matsumoto
  J. Am. Chem. Soc. 132 (2010) 18012-18013. (December)
• "Chemical and biological sensing applications based on graphene field-effect transistors."
  Yasuhide Ohno, Kenzo Maehashi, and Kazuhiko Matsumoto
  Biosens. Bioelectron. 26 (2010) 1727-1730. (December)
• "Graphene field-effect transistors for label-free biological sensors."
  Yasuhide Ohno, Kenzo Maehashi, and Kazuhiko Matsumoto
  Proceeding of 2010 IEEE Sensors Conference (2010) 903-906. (November)
• "Enhancement of weak-signal response based on stochastic resonance in carbon nanotube field-effect transistors."
  Yasufumi Hakamata, Yasuhide Ohno, Kenzo Maehashi, Seiya Kasai, Koichi Inoue, and Kazuhiko Matsumoto
  J. Appl. Phys. 108 (2010) 104313. (November)
• "Fabrication of High-Performance Voltage Inverters Based on Carbon Nanotube Field-Effect Transistors."
  Kenzo Maehashi, Takaomi Kishimoto, Yasuhide Ohno, Koichi Inoue, and Kazuhiko Matsumoto
  Proceeding of 2010 IEEE Nanotechnology Materials and Devices Conference (2010) 343-346 (October)
• "Single-Electron Memory Based on Floating-Gated Carbon Nanotube Field-Effect Transistors."
  Takahiro Ohori, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
  Proceeding of 2010 IEEE Nanotechnology Materials and Devices Conference (2010) 300-303 (October)
• "Improving Faint-Signal Sensitivity of Electrolyte-Gated Carbon Nanotube Field-Effect Transistors Using External Noise."
  Yasufumi Hakamata, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
  Proceeding of 2010 IEEE Nanotechnology Materials and Devices Conference (2010) 10-13 (October)
• "Highly Sensitive Electrical Detection of Chemical and Biological Molecules Based on Graphene Field-Effect Transistors."
  Kenzo Maehashi, Yasuhide Ohno, and Kazuhiko Matsumoto
  Proceeding of Fourth International Conference on Sensing Technology (2010) 325-328. (June)
• "Signal Enhancement Based on Stochastic Resonance in Carbon Nanotube Field-Effect Transistors."
  Yasufumi Hakamata, Yasuhide Ohno, Kenzo Maehashi, Seiya Kasai, Koichi Inoue, and Kazuhiko Matsumoto
  Proceeding of Fourth International Conference on Sensing Technology (2010) 1-5. (June)
• "Single-Hole Charging and Discharging Phenomena in Carbon Nanotube Field-Effect-Transistor-Based Nonvolatile Memory."
  Takahiro Ohori, Satoshi Nagaso, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
  Jpn. J. Appl. Phys. 49 (2010) 06GG13. (June)
• "Logic Gates Based on Carbon Nanotube Field-Effect Transistors with SiN_x Passivation Films."
  Takaomi Kishimoto, Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
  Jpn. J. Appl. Phys. 49 (2010) 06GG02. (June)
• "Raman Scattering of Single-Walled Carbon Nanotubes in Early Growth Stages Using Laser-Irradiated Chemical Vapor Deposition."
  Tomoki Tsuji, Koichi Inoue, Yasuhide Ohno, Kenzo Maehashi, and Kazuhiko Matsumoto
  Jpn. J. Appl. Phys. 49 (2010) 06GJ03. (June)
• "Aligned Single-Walled Carbon Nanotube Arrays on Patterned SiO₂/Si Substrates."
  Kenzo Maehashi, Shin Iwasaki, Yasuhide Ohno, Takaomi Kishimoto, Koichi Inoue, and Kazuhiko Matsumoto
  Jpn. J. Appl. Phys. 49 (2010) 06GK01. (June)
• "Dependence of sensitivity of biosensor for carbon nanotube field-effect transistor with top-gate structures."
  Masuhiro Abe, Katsuyuki Murata, and Kazuhiko Matsumoto
  J. Appl. Phys. 107 (2010) 084504. (April)
• "Improvement in Performance of Carbon Nanotube Field-Effect Transistors on Patterned SiO₂/Si Substrates."
  Kenzo Maehashi, Shin Iwasaki, Yasuhide Ohno, Takaomi Kishimoto, Koichi Inoue, and Kazuhiko Matsumoto
  J. Electron. Mater. 39 (2010) 376-380. (April)
• "Cobalt Nano Particle Size Dependence of Noise Modulations in Relation to Nonlinearity."
  Toshio Kawahara, Satarou Yamaguchi, Kenzo Maehashi, Yasuhide Ohno, Kazuhiko Matsumoto, and Tomoji Kawai
  e-J. Surf. Sci. Nanotech. 8 (2010) 115-120. (March)
• "Robust Noise Modulation of Nonlinearity in Carbon Nanotube Field-Effect Transistors."
  Toshio Kawahara, Satarou Yamaguchi, Kenzo Maehashi, Yasuhide Ohno, Kazuhiko Matsumoto, and Tomoji Kawai
  Jpn. J. Appl. Phys. 49 (2010) 02BD11. (February)
• "Electrical Detection of Negatively Charged Proteins Using n-Type Carbon Nanotube Field-Effect Transistor Biosensors."
  Yasuki Yamamoto, Kenzo Maehashi, Yasuhide Ohno, and Kazuhiko Matsumoto
  Jpn. J. Appl. Phys. 49 (2010) 02BD10. (February)

2009

• "Gate induced crossover between Fabry-Perot and quantum dot behavior in a single walled carbon nanotube hole transistor."
  Takafumi Kamimura and Kazuhiko Matsumoto
  J. Appl. Phys. 106 (2009) 113718. (December)
• "Single-Charge Sensitivity of Single-Walled Carbon Nanotube Multi-Functional Quantum Transistor."
  Takafumi Kamimura and Kazuhiko Matsumoto
  Sensor and Materials 21 (2009) 403-418. (December)
• "Fabrication of room-temperature-operating carbon nanotube single-charge transistors."
  Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue and Kazuhiko Matsumoto
  Sensor and Materials 21 (2009) 393-402. (December)
• "Electrochemical Amperometric Biosensors Based on Directly Synthesized Carbon Nanotube Electrodes."
  Kenzo Maehashi and Kazuhiko Matsumoto
  Sensor and Materials 21 (2009) 363-372. (December)
• "High-Sensitive Biosensors based on High-Performance Carbon Nanotube Filed-Effect Transistors."
  Yasuki Yamamoto, Kenzo Maehashi, Yasuhide Ohno and Kazuhiko Matsumoto
  Sensor and Materials 21 (2009) 351-361. (December)
• "Electrolyte-Gated Graphene Field-Effect Transistors for Detecting pH and Protein Adsorption."
  Yasuhide Ohno, Kenzo Maehashi, Yusuke Yamashiro, and Kazuhiko Matsumoto
  Nano Letters 9 (2009) 3318-3322. (September)
• "Label-Free Electrical Detection Using Carbon Nanotube-Based Biosensors."
  Kenzo Maehashi and Kazuhiko Matsumoto
  Sensors 9 (2009) 5368-5378. (July)
• "Noise Reduction of Carbon Nanotube Field-Effect Transistor Biosensors by Alternating Current Measurement."
  Yasuki Yamamoto, Yasuhide Ohno, Kenzo Maehashi, and Kazuhiko Matsumoto
  Jpn. J. Appl. Phys. 48 (2009) 06FJ01. (June)
• "Microfluidic and Label-Free Multi-Immunosensors Based on Carbon Nanotube Microelectrodes."
  Yuichi Tsujita, Kenzo Maehashi, Kazuhiko Matsumoto, Miyuki Chikae, Yuzuru Takamura, and Eiichi Tamiya
  Jpn. J. Appl. Phys. 48 (2009) 06FJ02. (June)
• "Aptamer-Based Label-Free Immunosensors Using Carbon Nanotube Field-Effect Transistors."
  Kenzo Maehashi, Kazuhiko Matsumoto, Yuzuru Takamura, and Eiichi Tamiya
  Electroanalysis 21 (2009) 1285-1290. (June)
• "Carbon Nanotube Fabry-Perot Device for Detection of Multiple Single Charge Transitions."
  Takafumi Kamimura, Yasuhide Ohno, and Kazuhiko Matsumoto
  Jpn. J. Appl. Phys. 48 (2009) 025001. (February)
• "Room-temperature-operating carbon nanotube single-hole transistors with significantly small gate and tunnel capacitances."
  Yasuhide Ohno, Yoshihiro Asai, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
  Appl. Phys. Lett. 94 (2009) 053112. (February)
• "Transition between Particle Nature and Wave Nature in Single-Walled Carbon Nanotube Device."
  Takafumi Kamimura, Yasuhide Ohno, and Kazuhiko Matsumoto
  Jpn. J. Appl. Phys. 48 (2009) 015005. (January)
• "Controlling Direction of Growth of Carbon Nanotubes on Patterned SiO₂ Substrate."
  Takafumi Kamimura, and Kazuhiko Matsumoto
  Appl. Phys. Express 2 (2009) 015005. (January)

2008

• "Electrical characterization of carbon nanotube field-effect transistors with SiNx passivation films deposited by catalytic chemical vapor deposition."
  Kenzo Maehashi, Yasuhide Ohno, Koichi Inoue, Kazuhiko Matsumoto, Toshikazu Niki, and Hideki Matsumura
  Appl. Phys. Lett. 92 (2008) 183111. (May)
• "Carbon Nanotube Amperometric Chips with Pneumatic Micropumps."
  Yuichi Tsujita, Kenzo Maehashi, Kazuhiko Matsumoto, Miyuki Chikae, Soichiro Torai, Yuzuru Takamura, and Eiichi Tamiya
  Jpn. J. Appl. Phys. 47 (2008) 2064-2067. (April)
• "High-Performance Carbon Nanotube Field-Effect Transistors with Local Electrolyte Gates."
  Taiji Katsura, Yasuki Yamamoto, Kenzo Maehashi, Yasuhide Ohno, and Kazuhiko Matsumoto
  Jpn. J. Appl. Phys. 47 (2008) 2060-2063. (April)
• "Room-Temperature Coulomb Oscillations of Carbon Nanotube Field-Effect Transistors with Oxidized Insulators."
  Yasuhide Ohno, Yoshihiro Asai, Kenzo Maehashi, Koichi Inoue, and Kazuhiko Matsumoto
  Jpn. J. Appl. Phys. 47 (2008) 2056-2059. (April)
• "Room-Temperature Carbon Nanotube Single-Electron Transistors Fabricated Using Defect-Induced Plasma Process."
  Shin Iwasaki, Masatoshi Maeda, Takafumi Kamimura, Kenzo Maehashi, Yasuhide Ohno, and Kazuhiko Matsumoto
  Jpn. J. Appl. Phys. 47 (2008) 2036-2039. (April)
• "Suppression of Current Fluctuations in Carbon Nanotube Field-Effect Transistors by Applying Alternating Current."
  Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue and Kazuhiko Matsumoto
  Proceeding of the 2008 International Conference on Nanoscience and Nanotechnology 67-70. (February)
• "High-Performance Carbon Nanotube Field-Effect Transistors for High-Sensitive Biosensors."
  Kenzo Maehashi and Kazuhiko Matsumoto
  Proceeding of the IASTED International Conference on NANOTECHNOLOGY AND APPLICATIONS (2008) 615-019.
• "Carbon Nanotube Field-Effect Transistor Biosensors with High Signal-to-Noise Ratio Using Alternating Current Measurement."
  Proceeding of the IASTED International Conference on NANOTECHNOLOGY AND APPLICATIONS (2008) 615-043.

2007

• "High-sensitive Label-free Biosensors Based on Carbon Nanotube Field-effect Transistors Modified with Aptamers."
  Kenzo Maehashi, Taiji Katsura, Kazuhiko Matsumoto, Kagan Kerman, Yuzuru Takamura and Eiichi Tamiya
  Technical Proceeding of the 2007 NSTI Nanotechnology Conference and Trade Show 2 (2007) 202-205.
• "Coulomb Oscillations at Room-Temperature of Single-Walled Carbon Nanotube Field-Effect Transistors."
  Yasuhide Ohno, Yoshihiro Asai, Kenzo Maehashi, Koichi Inoue and Kazuhiko Matsumoto
  Technical Proceeding of the 2007 NSTI Nanotechnology Conference and Trade Show 1 (2007) 69-72.
• "Electronic states of single-walled carbon nanotubes with substitutional impurities."
  Koichi Inoue, Yasuhide Ohno, Kenzo Maehashi, and Kazuhiko Matsumoto
  AIP Conference Proceedings on 27th Int. Conf. on the Physics of Semiconductors 893 (2007) 1031-1032. (April)
• "Label-free immunosensor for prostate-specific antigen based on single-walled carbon nanotube array-modified microelectrodes."
  Jun Okuno, Kenzo Maehashi, Kagan Kerman, Yuzuru Takamura, Kazuhiko Matsumoto, Eiichi Tamiya
  Biosensors and Bioelectronics 22 (2007) 2377-2381. (April)
• "Growth of Suspended Single-Walled Carbon Nanotubes by Laser-Irradiated Chemical Vapor Deposition."
  Y. Asai, Y. Fujiwara, Y. Ohno, K. Maehashi, K. Inoue and K. Matsumoto
  J. Physics: Conf. Series 61 (2007) 46-50.
• "Single-Walled Carbon Nanotube-Arrayed Microelectrode Chip for Electrochmical Analysis."
  Jun Okuno, Kenzo Maehashi, Kazuhiko Matsumoto, Kagan Kerman, Yuzuru Takamura and Eiichi Tamiya
  Electrochem. Commun. 9 (2007) 13-18. (January)
• "Formation of single quantum dot in single-walled carbon nanotube channel using focused-ion-beam technique."
  Kenzo Maehashi, Hirokazu Ozaki, Yasuhide Ohno, Koichi Inoue, Kazuhiko Matsumoto, Shu Seki, Seiichi Tagawa
  Appl. Phys. Lett. 90 (2007) 023103. (January)
• "Label-free protein biosensors based on aptamer-modified carbon nanotube field-effect transistors."
  Kenzo Maehashi, Taiji Katsura, Kazuhiko Matsumoto, Kagan Kerman, Yuzuru Takamura and Eiichi Tamiya
  Anal. Chem. 79 (2007) 782-787. (January)

2006

• "Large magnetoresistance in single-walled carbon nanotubes contacted different ferromagnetic metal electrodes."
  Yasuhide Ohno, Kazuki Narumi, Kenzo Maehashi, Koichi Inoue and Kazuhiko Matsumoto
  J. Physics: Conf. Series 38 (2006) 57-60.
• "High-Sensitive Label-Free Biosensors Based on Single-Walled Carbon Nanotubes."
  Kenzo Maehashi, and Kazuhiko Matsumoto
  Proc. SPIE 6127 (2006) 612715/1-4.

2005

• "Transport Properties of Charge Carriers in Single-Walled Carbon Nanotubes by Flash-Photolysis Time-Resolved Microwave Conductivity Technique."
  Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, Kazuhiko Matsumoto, Akinori Saeki and Seiichi Tagawa
  AIP Conference Proceedings on 27th Int. Conf. on the Physics of Semiconductors 772 (2005) 1041-1042. (June)
• "Laser Resonance Chirality Selection in Single-Walled Carbon Nanotubes."
  Kenzo Maehashi, Yasuhide Ohno, Koichi Inoue, and Kazuhiko Matsumoto
  AIP Conference Proceedings on 27th Int. Conf. on the Physics of Semiconductors 772 (2005) 1023-1024. (June)
• "Peptide Nucleic Acid-Modified Carbon Nanotube Field-Effect Transistors for Ultra-sensitive Real-Time Detection of DNA Hybridization."
  Kagan Kerman, Yasutaka Morita, Yuzuru Takamura, Eiichi Tamiya, Kenzo Maehashi, and Kazuhiko Matsumoto
  Nanobiotechnology 1 (2005) 065-070.
• "Position-Controlled Growth of Single-Walled Carbon Nanotubes by Laser-Irradiated Chemical Vapor Deposition."
  Y. Fujiwara, K. Maehashi, Y. Ohno, K. Inoue and K. Matsumoto
  Jpn. J. Appl. Phys., 44 (2005) 1581-1584. (April)
• "Raman Scattering of Single-Walled Carbon Nanotubes Implanted with Ultra-Low-Energy Oxygen Ions."
  Y. Ohno, K. Inoue, T. Kamimura, K. Maehashi, K. Yamamoto and K. Matsumoto
  Jpn. J. Appl. Phys., 44 (2005) 1615-1620. (April)
• "Air-stable n-type carbon nanotube field-effect transistors with Si3N4 passivation films fabricated by catalytic chemical vapor deposition."
  D. Kaminishi, H. Ozaki, Y. Ohno, K. Maehashi, K. Inoue, K. Matsumoto, Y. Seri, A. Masuda and H. Matsumura
  Appl. Phys. Lett., 86 (2005) 113115. (March)

2004

• "Ultrasensitive Detection of DNA Hybridization using Carbon Nanotube Field-Effect Transistors."
  Kenzo Maehashi, Kazuhiko Matsumoto, Kagan Kerman, Yuzuru Takamura and Eiichi Tamiya
  Jpn. J. Appl. Phys. 43 (2004) L1558-L1560. Express letter (November)
• "Chirality selection of single-walled carbon nanotubes by laser resonance chirality selection method."
  K. Maehashi, Y. Ohno, K. Inoue and K. Matsumoto
  Appl. Phys. Lett., 85 (2004) 858-860. (June)

2003

• "Single-Electron Transistor with Ultra-High Coulomb Energy of 5000K Using Position Controlled Grown Carbon Nanotube as Channel."
  Kazuhiko MATSUMOTO, Seizo KINOSHITA, Yoshitaka GOTOH, Kousuke KURACHI, Takahumi KAMIMURA, Masatoshi MAEDA, Kazue SAKAMOTO, Masashi KUWAHARA, Nobuhumi ATODA and Yuji AWANO
  Jpn. J. Appl. Phys., Part 1, 42 (2003) 2415-2418. (January)