Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6524501 | Pitch fiber bundle and pitch type carbon fiber bundle and method for production thereof | Yutaka Arai, Tsutomu Nakamura | 2003-02-25 |
| 6187434 | Pitch fiber bundle and pitch type carbon fiber bundle and method for production thereof | Yutaka Arai, Tsutomu Nakamura | 2001-02-13 |
| 5968435 | Process for manufacturing pitch-type carbon fiber | Osamu Kato, Yoshio Kishimoto, Yutaka Arai, Hajime Nakajima, Masatoshi Furuyama +5 more | 1999-10-19 |