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, Tsutomu Kihara +5 more | 1999-10-19 |
| 5370856 | High strength carbon fiber and pre-carbonized fiber | Yutaka Arai, Hirofumi Sunago, Tadao Tomioka | 1994-12-06 |
| 4975263 | Process for producing mesophase pitch-based carbon fibers | Yasunori Sajiki, Takeshi Hamada, Tadao Tomioka | 1990-12-04 |