Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6870674 | Lens sheet and method of manufacturing the same | Makoto Ookawa, Masao Hamada, Yukichi Konami, Akiyoshi Kogame | 2005-03-22 |
| 6628460 | Lens sheet and method for producing the same | Makoto Ookawa, Masao Hamada, Yukichi Konami, Akiyoshi Kogame | 2003-09-30 |
| 5247038 | Polybutylene glycol dimethacrylate and resin composition for cast polymerization | Hiroshi Fukushima, Eriko Suda, Susumu Sugitani | 1993-09-21 |
| 5183870 | Composition for plastic lenses | Hiroshi Fukushima, Eriko Suda, Mikito Nakajima, Katsuyoshi Takeshita, Yusuke Kutsukake | 1993-02-02 |
| 5154740 | Membranous gas separator | Kensuke Kamada, Jun Kamo, Hiroshi Hosokawa | 1992-10-13 |
| 5045357 | Process for preparing a membranous gas separator | Kensuke Kamada, Jun Kamo, Hiroshi Hosokawa | 1991-09-03 |