Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12241180 | Acrylonitrile-based fiber bundle manufacturing method | Joji Funakoshi, Takashi Kawamoto, Fumito Oshima, Koichi Aizu | 2025-03-04 |
| 11530494 | Spinneret and method for manufacturing fiber web | Joji Funakoshi, Taku Yamamoto, Yasunori Kanemori | 2022-12-20 |
| 11286581 | Method for manufacturing acrylonitrile based fiber bundle and method for manufacturing carbon fiber bundle | Hiroyoshi Ikuta, Takeya Ohashi | 2022-03-29 |