Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5143974 | Low-profile unsaturated polyester resin composition | Kenji Nagai, Kazuo Matsuyama | 1992-09-01 |
| 4607087 | Method for producing a plastic lens | Yasuo Moriya, Masaharu Nakayama | 1986-08-19 |
| 4593067 | Low shrinkable unsaturated polyester resin composition | Masaharu Nakayama, Yasuo Moriya, Nobuyoshi Suzuki | 1986-06-03 |
| 4394480 | Low shrinkage unsaturated polyester resin composition | Norihisa Ujikawa | 1983-07-19 |