Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855106 | Low alloy steels for use in pressure vessel | Masaaki Katsumata, Isamu Takagi, Eiji Takahashi, Tadamichi Sakai, Yoji Matsumoto +2 more | 1989-08-08 |
| 4827117 | Amorphous silicon photo sensor with blocking diode | Setsuo Kaneko, Toshio Okubo | 1989-05-02 |