Issued Patents All Time
Showing 26–50 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5028963 | Image forming apparatus | Syoichi Nagata | 1991-07-02 |
| 5019862 | Heat control for photoreceptor | Masatsugu Nakamura, Shoichi Nagata, Kazuki Wakita, Katsuhiro Nagayama, Tadashi Tonegawa | 1991-05-28 |
| 5019856 | Image forming apparatus | Shoichi Nagata | 1991-05-28 |
| 5018054 | Exposure device with filter | Mitsuru Ogura | 1991-05-21 |
| 5009977 | Photosensitive member for electrophotography having amorphous silicon | Takashi Hayakawa, Shiro Narikawa, Yoshiharu Tsujimoto | 1991-04-23 |
| 5006883 | Image forming apparatus | Shoichi Nagata | 1991-04-09 |
| 4994855 | Electrophotographic image formation apparatus with two bias voltage sources | Yoshikazy Fujiwara, Shiro Narikawa, Shoichi Nagata, Kazuki Wakita, Takashi Hayakawa | 1991-02-19 |
| 4992348 | Electrophotographic photosensitive member comprising amorphous silicon | Takashi Hayakawa, Shiro Narikawa | 1991-02-12 |
| 4990423 | Photosensitive member for electrophotography | Takashi Hayakawa, Shiro Narikawa | 1991-02-05 |
| 4985728 | Exposure method for forming latent images | — | 1991-01-15 |
| 4973824 | Image fixing device | Syoichi Nagata | 1990-11-27 |
| 4971878 | Amorphous silicon photosensitive member for use in electrophotography | Takashi Hayakawa, Shiro Narikawa | 1990-11-20 |
| 4943826 | Image forming device with supplementary exposure device | Shoichi Nagata | 1990-07-24 |
| 4939535 | Method of controlling transport of photoreceptive sheet | Osamu Hashimoto, Shougo Iwai | 1990-07-03 |
| 4931618 | Image glazing device | Syoichi Nagata | 1990-06-05 |
| 4922419 | System for performing banking transactions | Yoshihiro Fukutani | 1990-05-01 |
| 4916478 | Method for the formation of images and an apparatus for the same | Yoshiharu Tsujimoto, Yoshikazu Fujiwara, Hiromu Sasaki, Syoichi Nagata | 1990-04-10 |
| 4910550 | Image formation apparatus with supplemental light source | Syoichi Nagata, Yoshiharu Tsujimoto | 1990-03-20 |
| 4910111 | Electrophotographic photoreceptor comprising amorphous silicon layer coated with amorphous inorganic material | Kazuki Wakita, Syoichi Nagata, Masatsugu Nakamura, Tadashi Tonegawa, Katsuhiro Nagayama | 1990-03-20 |
| 4908633 | Photosensitive microcapsule recorder with transfer sheet transported at an angle relative to the axial direction of the pressure rollers | Syoichi Nagata | 1990-03-13 |
| 4896183 | Image formation apparatus with supplemental light source | Syoichi Nagata, Yoshiharu Tsujimoto | 1990-01-23 |
| 4757345 | Electrophotographic system | Kazuki Wakita, Tadashi Tonegawa, Syoichi Nagata, Masatsugu Nakamura, Kazuo Maeyama | 1988-07-12 |
| 4754304 | Drum cleaning in an electrophotographic copying machine | Yoshiaki Imanaka | 1988-06-28 |
| 4728990 | Method of controlling exposure in electrophotography | — | 1988-03-01 |
| 4683186 | Doped amorphous silicon photoconductive device having a protective coating | Tadashi Tonegawa, Shoichi Nagata, Masatsugu Nakamura | 1987-07-28 |