Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5164281 | Photosensitive body for electrophotography containing amorphous silicon layers | Takashi Hayakawa, Shoichi Nagata, Shiro Narukawa, Kunio Ohashi, Yoshikazu Fujiwara | 1992-11-17 |
| 5019862 | Heat control for photoreceptor | Masatsugu Nakamura, Kunio Ohashi, Shoichi Nagata, Katsuhiro Nagayama, Tadashi Tonegawa | 1991-05-28 |
| 4994855 | Electrophotographic image formation apparatus with two bias voltage sources | Kunio Ohashi, Yoshikazy Fujiwara, Shiro Narikawa, Shoichi Nagata, Takashi Hayakawa | 1991-02-19 |
| 4910111 | Electrophotographic photoreceptor comprising amorphous silicon layer coated with amorphous inorganic material | Syoichi Nagata, Masatsugu Nakamura, Kunio Ohashi, Tadashi Tonegawa, Katsuhiro Nagayama | 1990-03-20 |
| 4757345 | Electrophotographic system | Kunio Ohashi, Tadashi Tonegawa, Syoichi Nagata, Masatsugu Nakamura, Kazuo Maeyama | 1988-07-12 |