Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7105946 | Distributed power generation system, and power supply system and power supply method utilizing the same | Yukinori Akiyama, Masatoshi Ueda, Kazuhiro Tajima, Masataka Kadowaki, Osamu Tajima +1 more | 2006-09-12 |
| 6080500 | Movable fuel cell apparatus | Akira Fuju, Yosio Azegami, Akio Kawakami, Katsuyuki Makihara, Taketoshi Ouki +5 more | 2000-06-27 |
| 5543241 | Fuel cell | Masato Nishioka, Akira Hamada, Eiji Tateyama, deceased, Masaru Tsutsumi | 1996-08-06 |
| 5541015 | Fuel cell using a separate gas cooling method | Osamu Tajima, Akira Hamada, Junji Tanaka, Yasunori Yoshimoto, Keigo Miyai +4 more | 1996-07-30 |
| 5366820 | Fuel cell system | Masaru Tsutsumi, Tsukasa Itoh, Takaaki Matsubayashi, Takehiro Yonesaki, Koichi Satoh +5 more | 1994-11-22 |
| 5314762 | Portable power source | Akira Hamada, Hiroshi Mukai, Isao Furukawa, Takashi Oda, Akira Watanabe +1 more | 1994-05-24 |
| 5302471 | Compact phosphoric acid fuel cell system and operating method thereof | Tsukasa Ito, Akira Hamada, Akihiro Furuse | 1994-04-12 |
| 5229222 | Fuel cell system | Masaru Tsutsumi, Tsukasa Itoh, Takaaki Matsubayashi, Takahiro Yonesaki, Koichi Satoh +5 more | 1993-07-20 |
| 4761350 | Method for processing defective fuel cells in fuel cell stacks | Masahiro Ide, Nobuya Inoue, Akio Inoue, Osamu Takehara | 1988-08-02 |
| 4640873 | Temperature control system for fuel cell powerplant | Osamu Tajima, Makoto Yamada, Hideo Hagino | 1987-02-03 |
| 4615107 | Method and device for assembling a fuel cell stack | Masao Kumeta, Masahiro Ide, Nobuya Inoue, Hideki Goto | 1986-10-07 |
| 4378414 | Zinc alkaline secondary battery | Nobuhiro Furukawa | 1983-03-29 |