Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8435657 | Method of preserving polymer electrolyte fuel cell stack and preservation assembly of polymer electrolyte fuel cell stack | Yoichiro Tsuji, Eiichi Yasumoto, Hatoh Kazuhito, Shinsuke Takeguchi | 2013-05-07 |
| 8137829 | Method of preserving polymer electrolyte fuel cell stack and preservation assembly of polymer electrolyte fuel cell stack | Yoichiro Tsuji, Eiichi Yasumoto, Kazuhito Hatoh, Shinsuke Takeguchi | 2012-03-20 |
| 8021772 | Preservation assembly of polymer electrolyte fuel cell stack | Yoichiro Tsuji, Eiichi Yasumoto, Kazuhito Hatoh, Shinsuke Takeguchi, Hiroki Kusakabe +1 more | 2011-09-20 |
| 8003239 | Method of preserving polymer electrolyte fuel cell stack and preservation assembly of polymer electrolyte fuel cell stack | Yoichiro Tsuji, Eiichi Yasumoto, Kazuhito Hatoh, Shinsuke Takeguchi, Hiroki Kusakabe +1 more | 2011-08-23 |
| 7976972 | Method of preserving polymer electrolyte fuel cell stack and preservation assembly of polymer electrolyte fuel cell stack | Yoichiro Tsuji, Eiichi Yasumoto, Kazuhito Hatoh, Shinsuke Takeguchi | 2011-07-12 |
| 7494737 | Fuel cell having manifold apertures and cover plates | Yasuo Takebe, Hideo Ohara, Kazuhito Hatoh, Eiichi Yasumoto | 2009-02-24 |
| 7422811 | Fuel cell life predicting device and fuel cell system | Eiichi Yasumoto, Osamu Sakai, Hideo Kasahara, Shigeyuki Unoki | 2008-09-09 |
| 7132187 | Polymer electrolyte fuel cell and production method thereof | Yasushi Sugawara, Makoto Uchida, Yoshihiro Hori, Akihiko Yoshida, Osamu Sakai +2 more | 2006-11-07 |