Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5247038 | Polybutylene glycol dimethacrylate and resin composition for cast polymerization | Hiroshi Fukushima, Akira Motonaga, Susumu Sugitani | 1993-09-21 |
| 5183870 | Composition for plastic lenses | Hiroshi Fukushima, Akira Motonaga, Mikito Nakajima, Katsuyoshi Takeshita, Yusuke Kutsukake | 1993-02-02 |
| 4680368 | Ultraviolet curable ink composition | Hideo Nakamoto, Fumito Aosai, Hiroshi Fukushima | 1987-07-14 |