Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11837732 | Carbon sheet, gas diffusion electrode substrate, and fuel cell | Katsuya Sode, Takashi Chida, Toru Sugahara, Michio Wakatabe, Tetsuya Sunahara +1 more | 2023-12-05 |
| 11283082 | Gas diffusion electrode and production method therefor | Michio Wakatabe, Sho Kato | 2022-03-22 |
| 11216032 | Information reading apparatus | Takao Ushijima, Makoto Ootake, Keiichiro Yamamoto, Katsunori Sakakibara | 2022-01-04 |
| 10847878 | Implantable instrument | Hideaki Yamaguchi, Satoshi Kitamura, Junya Sakemi | 2020-11-24 |
| 10680250 | Gas-diffusion electrode substrate and method of manufacturing same | Michio Wakatabe, Sho Kato | 2020-06-09 |
| 10434559 | Press apparatus and spray nozzle | Yoshihiro Iwano, Junichi Komatsu, Shigeaki Ando | 2019-10-08 |
| 10297833 | Gas diffusion electrode and method for manufacturing the same | Sho Kato, Michio Wakatabe, Toru Miyake | 2019-05-21 |
| 9972847 | Gas diffusion electrode medium for fuel cell | Masamichi Utsunomiya, Toshiya Kamae | 2018-05-15 |
| 8706266 | Power control system | Takeshi Ogawa, Yosihiko Tokunaga, Yasuhiro Yanagi, Izumi Usuki, Hisashi Takayama +1 more | 2014-04-22 |
| 7543755 | Electronic key, electronic locking apparatus, electronic security system, and key administering server | Kenji Doi, Takashi Nishiyama, Ryouji Nakajima, Kenshi Suzuki, Yoshiko Tsuji +1 more | 2009-06-09 |
| 6984814 | Optical sensing circuit with voltage to current converter for pointing device | Takayuki Ban | 2006-01-10 |
| 6864780 | Data transmission system using a human body as a signal transmission path | Kenji Doi, Masaki Koyama, Yoshiko Suzuki, Tokuhisa Nishimura | 2005-03-08 |
| 6771161 | Data transmission system using a human body as a signal transmission path | Kenji Doi, Mitsuhide Maeda, Hitoshi Sakakibara, Keiichi Yoshida, Masaki Koyama +2 more | 2004-08-03 |
| 6595409 | Paper container and method of manufacturing it | Yasuhiro Ohara | 2003-07-22 |
| 6525670 | In-home health care system | Kenji Doi, Mitsuhide Maeda, Hitoshi Sakakibara, Keiichi Yoshida, Kazuya KITAYAMA +3 more | 2003-02-25 |
| 6344778 | Voltage-controlled oscillator, phase synchronization circuit and signal processing circuit | Norio Nakamura, Katsuyuki Omi, Toshio Shiramatsu, Nobuyasu Goto | 2002-02-05 |
| 6237845 | Paper container and method for manufacturing the same | Akira Nagashima, Jun Maekawa, Tomoko Fuse | 2001-05-29 |
| 5638026 | High input impedance circuit and semiconductor integrated device provided therewith | — | 1997-06-10 |
| 5222016 | Frequency converter | Susumu Matsumoto | 1993-06-22 |
| 5149199 | Temperature detection circuit used in thermal shielding circuit | Hitoshi Kinoshita | 1992-09-22 |
| 4652900 | NPN transistor with P/N closed loop in contact with collector electrode | — | 1987-03-24 |
| 4621206 | Level detector | — | 1986-11-04 |
| 4538198 | Protection circuit for an output transistor | Kazuo Imanishi, Makoto Mori | 1985-08-27 |
| 4498054 | Differential amplifier circuit | Hirokazu Fukuda | 1985-02-05 |
| 4466115 | FM Stereo signal demodulator | — | 1984-08-14 |