Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4956131 | Fuel cell electrode substrate incorporating separator as an intercooler and process for preparation thereof | Masatomo Shigeta, Hiroyuki Fukuda, Kuniyuki Saitoh | 1990-09-11 |
| 4855092 | Process for preparing a carbonaceous fuel cell electrode substrate incorporating three-layer separator | Hiroyuki Fukuda, Masatomo Shigeta, Kuniyuki Saitoh | 1989-08-08 |
| 4818640 | Carbonaceous composite product produced by joining carbonaceous materials together by tetrafluoroethylene resin, and process for producing the same | Hiroyuki Fukuda, Masatomo Shigeta, Kiyomi Ohuchi, Kuniyuki Saitoh, Masayuki Funabashi | 1989-04-04 |
| 4794043 | Carbon product comprising carbonaceous materials joined together, said carbon product for electrode substrate of fuel cells and process for production thereof | Kuniyuki Saitoh | 1988-12-27 |
| 4778736 | Electrode substrate provided with manifold, for a fuel cell and process for producing the same | Kuniyuki Saitoh | 1988-10-18 |
| 4743519 | Fuel cell electrode substrate provided with peripheral sealers | Kuniyuki Saitoh | 1988-05-10 |
| 4730418 | Abrasing apparatus using magnetic abrasive powder | Shuichi Sugawara, Masaaki Shimada | 1988-03-15 |
| 4729910 | Reinforced flexible graphite sheet | Hiroyuki Fukuda, Masatomo Shigeta, Kuniyuki Saitoh | 1988-03-08 |
| 4686072 | Process for preparing a carbonaceous five-layer fuel cell electrode substrate with elongated holes for feeding reactant gases | Hiroyuki Fukuda, Masatomo Shigeta, Kuniyuki Saitoh | 1987-08-11 |
| 4664988 | Fuel cell electrode substrate incorporating separator as an intercooler and process for preparation thereof | Masatomo Shigeta, Hiroyuki Fukuda, Kuniyuki Saitoh | 1987-05-12 |
| 4580337 | Process for producing electrode substrate for fuel cells | Masatomo Shigeta, Hiroyuki Fukuda, Kuniyuki Saitoh | 1986-04-08 |
| 4579789 | Carbonaceous fuel cell electrode substrate incorporating three-layer separator, and process for preparation thereof | Hiroyuki Fukuda, Masatomo Shigeta, Kuniyuki Saitoh | 1986-04-01 |
| 4567086 | Carbonaceous, five-layer fuel cell electrode substrate with elongated holes for feeding reactant gases | Hiroyuki Fukuda, Masatomo Shigeta, Kuniyuki Saitoh | 1986-01-28 |
| 4522895 | Multilayer fuel cell electrode substrate having elongated holes for feeding reactant gases | Masatomo Shigeta, Hiroyuki Fukuda, Kuniyuki Saitoh | 1985-06-11 |
| 4506028 | Process for preparing a fuel cell electrode substrate comprising carbon fibers | Hiroyuki Fukuda, Hiroto Fujimaki, Yoichiro Yamanobe, Masaru Hiruta, Sigeru Ohmi | 1985-03-19 |
| 4434206 | Shaped articles of porous carbon fibers | Hiroyuki Fukuda, Hiroto Fujimaki | 1984-02-28 |
| 4420443 | Method for producing spherical particles of carbon and of activated carbon | Kazuhiro Watanabe | 1983-12-13 |
| 4389387 | Method for preparing carbon fibers | Tamotsu Miyamori, Iwao Kameyama, Michio Takahashi | 1983-06-21 |
| 4340464 | Method for thermal cracking of heavy petroleum oil | Takaaki Aiba, Tomizo Endo, Takao Ishihara | 1982-07-20 |
| 4314981 | Method for preparing carbon fibers | Tamotsu Miyamori, Iwao Kameyama, Michio Takahashi | 1982-02-09 |
| 4283369 | Apparatus for making pitch fiber infusible | Iwawo Kameyama, Takashi Hamaguti, Tamotsu Miyamori | 1981-08-11 |
| 4265869 | Method of and apparatus for making pitch fiber infusible | Iwawo Kameyama, Takashi Hamaguti, Tamotsu Miyamori | 1981-05-05 |
| 4214979 | Method of thermally cracking heavy petroleum oil | Hajime Nakanishi, Kiyoji Ozaki, Toshio Shinozuka, Masato Izumi, Takaaki Aiba +2 more | 1980-07-29 |