Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5429871 | Reversibly color-changing shaped material and process for producing the same | Yuichi Fukui, Hajime Itoh, Shigeki Hagura | 1995-07-04 |
| 5264531 | Acrylonitrile copolymer, and fiber or core-sheath conjugate fiber prepared therefrom | Yuichi Fukui, Tsuruyoshi Matsumoto, Hajime Itoh, Takeo Hamazaki | 1993-11-23 |
| 5252396 | Reversibly color-changing shaped material and process for producing the same | Yuichi Fukui, Hajime Itoh, Shigeki Hagura | 1993-10-12 |
| 5234766 | Acrylonitrile copolymer, and fiber or core-sheath conjugate fiber prepared therefrom | Yuichi Fukui, Tsuruyoshi Matsumoto, Hajime Itoh, Takeo Hamazaki | 1993-08-10 |