Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888521 | Photoconductive device and method of operating the same | Kenkichi Tanioka, Keiichi Shidara, Junichi Yamazaki, Eikyuu Hiruma, Kazuhisa Taketoshi +16 more | 1989-12-19 |
| 4866332 | Target of image pickup tube | Yukio Takasaki, Tatsuo Makishima, Kazutaka Tsuji, Tadaaki Hirai, Eisuke Inoue +9 more | 1989-09-12 |