Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885226 | Electrophotographic photosensitive sensor | Masaru Takeuchi, Kazuyuki Gotoh, Kenichiro Wakisaka, Kazuhiko Honma, Takeo Fukatsu +1 more | 1989-12-05 |
| 4841328 | Electrostatic recording apparatus | Masaru Takeuchi, Takeo Fukatsu, Yukinori Kuwano, Koji Minami, Masayuki Iwamoto | 1989-06-20 |
| 4831429 | Transparent photo detector device | Saburo Nakashima, Shoichiro Nakayama, Shigeru Noguchi, Yukinori Kuwano, Kaneo Watanabe +1 more | 1989-05-16 |
| 4824488 | Photovoltaic device | Souichi Sakai, Yukinori Kuwano | 1989-04-25 |
| 4799087 | Field effect transistor | Takao Matsuyama, Hisaki Tarui, Shinya Tsuda, Yukinori Kuwano | 1989-01-17 |