Issued Patents All Time
Showing 76–100 of 111 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6818339 | Polymer electrolyte type fuel cell | Yasushi Sugawara, Hisaaki Gyoten, Eiichi Yasumoto, Teruhisa Kanbara, Junji Morita +6 more | 2004-11-16 |
| 6797122 | Coke oven and method of operating the same | Shuhei Yoshida, Syoji Takase, Takafumi Saji, Hiroyuki Koyama | 2004-09-28 |
| 6746793 | Polymer electrolyte fuel cell | Hisaaki Gyoten, Eiichi Yasumoto, Kazuhito Hatoh, Yasushi Sugawara, Teruhisa Kanbara +6 more | 2004-06-08 |
| 6667268 | Polymer electrolyte fuel cell having a porous catalyst layer and a method for manufacturing the same | Yasushi Sugawara, Hisaaki Gyoten, Eiichi Yasumoto, Teruhisa Kanbara, Junji Morita | 2003-12-23 |
| 6660424 | Fuel cell and method of manufacture thereof | Hisaaki Gyoten, Eiichi Yasumoto, Yasushi Sugawara, Kazufumi Nishida, Kazuhito Hatoh +6 more | 2003-12-09 |
| 6660419 | Solid polymer electrolyte fuel cell | Kazufumi Nishida, Eiichi Yasumoto, Hisaaki Gyoten, Kazuhito Hatoh, Hideo Ohara +4 more | 2003-12-09 |
| 6638655 | Fuel cell system | Hisaaki Gyoten, Osamu Sakai, Kazuhito Hatoh, Junji Niikura | 2003-10-28 |
| 6579639 | Polymer electrolyte fuel cell | Hisaaki Gyoten, Eiichi Yasumoto, Hiroki Kusakabe, Yasushi Sugawara, Yoshihiro Hori | 2003-06-17 |
| 6531236 | Polymer electrolyte fuel cell stack | Kazuhito Hatoh, Eiichi Yasumoto, Kazufumi Nishida, Hisaaki Gyoten, Teruhisa Kanbara +3 more | 2003-03-11 |
| 6455109 | Electrode for fuel cell and method of producing the same | Eiichi Yasumoto, Hisaaki Gyoten, Yasushi Sugawara, Yasutomo Funakoshi, Kouji Nakagawa +1 more | 2002-09-24 |
| 6447679 | Hollow fiber membrane | Kenji Watari, Satoshi Takeda, Masumi Kobayashi, Masamoto Uenishi, Noriaki Fukushima +1 more | 2002-09-10 |
| 6444346 | Fuel cells stack | Hideo Ohara, Yasushi Sugawara | 2002-09-03 |
| 6372373 | Solid polymer electrolyte fuel cell and method for producing the same | Hisaaki Gyoten, Kazuhito Hatoh, Kazufumi Nishida, Hideo Ohara, Eiichi Yasumoto +4 more | 2002-04-16 |
| 6329093 | Polymer electrolyte fuel cell stack | Hideo Ohara, Hisaaki Gyoten, Kazuhito Hatoh, Kazufumi Nishida, Eiichi Yasumoto +3 more | 2001-12-11 |
| 6318338 | Actuator | Yuji Kawamura, Masao Ida | 2001-11-20 |
| 6316139 | Fuel cell having a gasket with an adhesive layer | Yuko Fukuoka, Yasushi Sugawara, Hideo Ohara, Nobuo Eda | 2001-11-13 |
| 6242260 | Design for an electrode | Yasushi Sugawara, Yuko Fukuoka, Nobuo Eda | 2001-06-05 |
| 6215272 | Fuel cell device | Hideo Ohara, Yuko Fukuoka, Yasushi Sugawara, Nobuo Eda, Keiichi Iiyama | 2001-04-10 |
| 6210823 | Polymer electrolyte fuel cell | Kazuhito Hatoh, Eiichi Yasumoto, Kazufumi Nishida, Hisaaki Gyoten, Hideo Ohara +4 more | 2001-04-03 |
| 6194094 | Polymer electrolyte fuel cell | Yasushi Sugawara, Hideo Ohara, Yuko Fukuoka, Nobuo Eda | 2001-02-27 |
| 6194092 | Fuel cell apparatus | Hideo Ohara, Yasushi Sugawara | 2001-02-27 |
| 6164632 | Method for the preparation of a carbonate spring | Masanao Kobuke, Kenji Watari, Yoshinori Nagasaka | 2000-12-26 |
| 6060187 | Solid polymer type fuel cell and method for manufacturing the same | Yuko Fukuoka, Yasushi Sugawara, Nobuo Eda | 2000-05-09 |
| 6057051 | Miniaturized fuel cell assembly | Yuko Fukuoka, Yasushi Sugawara, Nobuo Eda | 2000-05-02 |
| 5866423 | Measuring method of the specific surface area available for reaction of noble metal catalyst in the electrode of polymer electrolyte membrane fuel cell | Yasushi Sugawara, Yuko Fukuoka, Nobuo Eda | 1999-02-02 |