Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4695415 | Method for producing acrylic fiber precursors | Takeji Otani, Kanji Yoshida | 1987-09-22 |
| 4661572 | Process for producing acrylonitrile-based precursors for carbon fibers | Takeji Otani, Tadao Kobayashi | 1987-04-28 |
| 4603042 | Method for making carbon fibers | Yuichi Fukui, Tadao Kobayashi | 1986-07-29 |
| 4368227 | Suede-like sheet materials of ultrafine fibers | Koji Mimura, Kiyonobu Okamura | 1983-01-11 |