Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5968435 | Process for manufacturing pitch-type carbon fiber | Osamu Kato, Yoshio Kishimoto, Yutaka Arai, Hajime Nakajima, Masatoshi Furuyama +5 more | 1999-10-19 |
| 4717331 | Spinning nozzle | Naoyuki Maeda, Osamu Kato, Hirosaku Oshimi, Akira Nii, Hiroshi Shimada +2 more | 1988-01-05 |
| 4579645 | Starting pitch for carbon fibers | Seiichi Uemura, Hiroaki Takashima, Osamu Kato | 1986-04-01 |