Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5045905 | Amorphous silicon thin film transistor | Yoshihisa Ogiwara, Yasunari Kanda | 1991-09-03 |
| 5005056 | Amorphous-silicon thin film transistor array substrate | Sakae Tanaka, Yoshiaki Watanabe | 1991-04-02 |
| 4916090 | Amorphous silicon thin film transistor and method of manufacturing the same | Yoshihisa Ogiwara, Yasunari Kanda | 1990-04-10 |
| 4892613 | Process for etching light-shielding thin film | Sakae Tanaka, Yoshiaki Watanabe, Katsuo Shirai, Yaeko Suzuki, Yoshihisa Ogiwara +2 more | 1990-01-09 |