Issued Patents All Time
Showing 26–49 of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8137829 | Method of preserving polymer electrolyte fuel cell stack and preservation assembly of polymer electrolyte fuel cell stack | Shinichi Arisaka, Yoichiro Tsuji, Eiichi Yasumoto, Kazuhito Hatoh | 2012-03-20 |
| 8084163 | Fuel cell | Takashi Nakagawa, Toshihiro Matsumoto, Miyuki Yoshimoto | 2011-12-27 |
| 8021772 | Preservation assembly of polymer electrolyte fuel cell stack | Yoichiro Tsuji, Eiichi Yasumoto, Kazuhito Hatoh, Hiroki Kusakabe, Shigeyuki Unoki +1 more | 2011-09-20 |
| 8012646 | Polymer electrolyte fuel cell provided with a tightening pressure | Kazuhito Hatoh, Hiroki Kusakabe, Hideo Ohara, Susumu Kobayashi, Nobuhiro Hase +1 more | 2011-09-06 |
| 8003239 | Method of preserving polymer electrolyte fuel cell stack and preservation assembly of polymer electrolyte fuel cell stack | Yoichiro Tsuji, Eiichi Yasumoto, Kazuhito Hatoh, Hiroki Kusakabe, Shigeyuki Unoki +1 more | 2011-08-23 |
| 7976972 | Method of preserving polymer electrolyte fuel cell stack and preservation assembly of polymer electrolyte fuel cell stack | Shinichi Arisaka, Yoichiro Tsuji, Eiichi Yasumoto, Kazuhito Hatoh | 2011-07-12 |
| 7678490 | Polymer electrolyte fuel cell | Kazuhito Hatoh, Hiroki Kusakabe, Hideo Ohara, Soichi Shibata, Takeshi Tomizawa | 2010-03-16 |
| 7635532 | Polymer electrolyte fuel cell | Nobuhiro Hase, Hiroki Kusakabe, Hideo Ohara, Yoshiaki Yamamoto, Tatsuto Yamazaki | 2009-12-22 |
| 7611786 | Polymer electrolyte fuel cell power generation system | Kazuhito Hatoh, Hiroki Kusakabe, Yasuhiro Seki | 2009-11-03 |
| 7521143 | Polymer electrolyte fuel cell | Tatsuto Yamazaki, Yoshiaki Yamamoto, Hiroki Kusakabe, Hideo Ohara, Nobuhiro Hase | 2009-04-21 |
| 7491459 | Polymer electrolyte fuel cell | Hiroki Kusakabe, Kazuhito Hatoh, Hideo Ohara, Soichi Shibata, Takeshi Tomizawa +2 more | 2009-02-17 |
| 7479341 | Fuel cell, separator plate for a fuel cell, and method of operation of a fuel cell | Kazuhito Hatoh, Hideo Ohara, Hisaaki Gyoten | 2009-01-20 |
| 7452624 | Polymer electrolyte type fuel cell | Kazuhito Hatoh, Junji Niikura, Teruhisa Kanbara, Hideo Ohara, Hiroki Kusakabe +3 more | 2008-11-18 |
| 7407723 | Polymer electrolyte fuel cell | Hiroki Kusakabe, Kazuhito Hatoh, Toshihiro Matsumoto, Norihiko Kawabata, Yoshiki Nagao | 2008-08-05 |
| 7405019 | Polymer electrolyte fuel cell | Hideo Ohara, Hiroki Kusakabe, Kazuhito Hatoh, Nobuhiro Hase, Takayuki Urata +5 more | 2008-07-29 |
| 7378169 | Polymer electrolyte fuel cell and method for operation thereof | Tatsuto Yamazaki, Hiroki Kusakabe, Hideo Ohara, Yoshiaki Yamamoto, Nobuhiro Hase | 2008-05-27 |
| 7318974 | Polymer electrolyte fuel cell | Hideo Ohara, Hiroki Kusakabe, Nobuhiro Hase, Yoshiaki Yamamoto, Toshihiro Matsumoto +7 more | 2008-01-15 |
| 7294423 | Polymer electrolyte fuel cell having improved current collector plates and method of forming the same | Nobuhiro Hase, Kazuhito Hatoh, Hiroki Kusakabe, Hideo Ohara, Susumu Kobayashi +1 more | 2007-11-13 |
| 7220512 | Separator plate for polymer electrolyte fuel cell and polymer electrolyte fuel cell using the same | Hideo Ohara, Kazuhito Hatoh, Nobuhiro Hase, Hiroki Kusakabe, Katsuzou Kokawa +3 more | 2007-05-22 |
| 7014940 | High-polymer electrolyte fuel cell | Nobuhiro Hase, Hiroki Kusakabe, Hideo Ohara, Yoshiaki Yamamoto, Tatsuto Yamazaki | 2006-03-21 |
| 6960407 | Fuel cell | Soichi Shibata, Hiroki Kusakabe, Kazuhito Hatoh, Nobuhiro Hase, Hideo Ohara +3 more | 2005-11-01 |
| 6933070 | Polymer electrolyte fuel cell and conductive separator plate thereof | Hiroki Kusakabe, Kazuhito Hatoh, Hideo Ohara, Nobuhiro Hase, Susumu Kobayashi +1 more | 2005-08-23 |
| 6770396 | Polymer electrolyte fuel cell | Kazuhito Hatoh, Hiroki Kusakabe, Hideo Ohara, Susumu Kobayashi, Tatsuto Yamazaki +1 more | 2004-08-03 |
| 6740443 | Polymer electrolyte fuel cell | Tatsuto Yamazaki, Yoshiaki Yamamoto, Hiroki Kusakabe, Hideo Ohara, Nobuhiro Hase | 2004-05-25 |