Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4892613 | Process for etching light-shielding thin film | Noboru Motai, Sakae Tanaka, Yoshiaki Watanabe, Katsuo Shirai, Yoshihisa Ogiwara +2 more | 1990-01-09 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4892613 | Process for etching light-shielding thin film | Noboru Motai, Sakae Tanaka, Yoshiaki Watanabe, Katsuo Shirai, Yoshihisa Ogiwara +2 more | 1990-01-09 |