Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5252440 | Methacrylic resin composition for optical discs | Fumio Sato, Masaaki Kishimura | 1993-10-12 |
| 5047188 | Process for preparation of modified methacrylic resin molding material | Kazuya Okada, Masahiro Taniguchi, Hidemi Tanaka, Tsutomu Matsui | 1991-09-10 |
| 4558098 | Methacrylic resin composition | Kazumasa Kamata, Yoshio Nakai | 1985-12-10 |
| 4509163 | Process for producing a low hygroscopic methacrylic resin and information recording substrates made therefrom | Kazumasa Kamada, Katsumi Tamai, Kazunori Abe | 1985-04-02 |