Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888521 | Photoconductive device and method of operating the same | Kenkichi Tanioka, Keiichi Shidara, Tatsuro Kawamura, Junichi Yamazaki, Eikyuu Hiruma +16 more | 1989-12-19 |
| 4884011 | Light-detecting device | Tatsuo Makishima, Tadaaki Hirai, Kazutaka Tsuji, Takashi Yamashita, Keiichi Shidara +2 more | 1989-11-28 |
| RE33094 | Electrophotographic member with alpha-si layers | Eiichi Maruyama, Yoshinori Imamura, Hirokazu Matsubara, Yasuharu Shimomoto, Shinkichi Horigome +1 more | 1989-10-17 |
| 4829345 | Electronic device having light transmission system | Kazutaka Tsuji, Yukio Takasaki, Yasuharu Shimomoto, Hirokazu Matsubara, Tadaaki Hirai | 1989-05-09 |