Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5482906 | Adsorption material comprising activated carbon fiber and polytetrafluoroethylene | Naoki Sakai, Takayuki Tanaka | 1996-01-09 |
| 5167945 | Method for producing graphite fiber | Hiroyasu Ogawa, Tomoaki Kanno | 1992-12-01 |
| 5078840 | Process for the surface treatment of carbon fiber strands | Hiroyasu Ogawa, Tomoki Koseki | 1992-01-07 |
| 4830845 | Precursor for production of preoxidized fibers or carbon fibers | Hiroyasu Ogawa | 1989-05-16 |
| 4671950 | High-strength carbonaceous fiber | Hiroyasu Ogawa, Hiroshi Sugeno, Kazuhiro Ichimaru | 1987-06-09 |
| 4536448 | Preoxidized fiber and process for producing the same | Hiroyasu Ogawa, Hayashi Takahashi, Tetuya Okabe, Fumio Miyatake | 1985-08-20 |
| 4401533 | Surface-treatment of carbon fiber | Kazuhisa Saito, Hiroyasu Ogawa | 1983-08-30 |