Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4941018 | Developing device accommodating apparatus and image forming apparatus and developing device | Masashi Ohashi, Toshihiko Kusumoto, Naoki Okuda, Nobukazu Sasaki, Yasunori Maeda +8 more | 1990-07-10 |
| 4922300 | Image forming apparatus and developing device therefor | Nobukazu Sasaki, Masashi Ohashi, Naoki Okuda, Toshihiko Kusomoto | 1990-05-01 |
| 4908662 | Automatic original feeding apparatus having an image area designating function | Yasuyoshi Yamamoto, Yasunori Maeda, Nobukazu Sasaki, Toshihiko Kusumoto, Naoki Okuda +6 more | 1990-03-13 |
| 4873547 | Sheet conveying apparatus | Nobukazu Sasaki, Masashi Ohashi, Naoki Okuda, Toshihiko Kusumoto, Yasunori Maeda +5 more | 1989-10-10 |
| 4845528 | Double-side image forming apparatus | Tomohiro Aoki, Kazuo Kawakubo, Katsushi Furuichi, Kiyokazu Namekata, Hidetoshi Tanaka +2 more | 1989-07-04 |
| 4841336 | Image forming apparatus with developing device accommodating means | Toshihiko Kusumoto, Naoki Okuda, Masashi Ohashi, Nobukazu Sasaki, Minoru Nada | 1989-06-20 |
| 4841329 | Developing device accommodating apparatus and image forming apparatus and developing device | Masafumi Takagi, Naoki Okuda, Masashi Ohashi, Toshihiko Kusumoto, Nobukazu Sasaki +2 more | 1989-06-20 |
| 4823159 | Image forming apparatus | Yasuyoshi Yamamoto, Masashi Ohashi, Tatsuya Shiratori, Michiro Koike, Atsushi Kubota +4 more | 1989-04-18 |
| 4812874 | Image forming apparatus capable of designating area to be copied of original | Atsushi Kubota, Nobukazu Sasaki, Toshihiko Kusumoto, Tatsuya Shiratori, Takashi Ozawa +4 more | 1989-03-14 |
| 4799084 | Image forming apparatus | Michiro Koike, Takashi Ozawa, Yasuyoshi Yamamoto, Masashi Ohashi, Akiyoshi Kimura +4 more | 1989-01-17 |
| 4792828 | Image forming apparatus for forming a plurality of image from different originals on one transfer sheet | Takashi Ozawa, Yasuyoshi Yamamoto, Masashi Ohashi, Akiyoshi Kimura, Nobukazu Sasaki +6 more | 1988-12-20 |
| 4787616 | Sheet stacking device and image forming apparatus provided with same | Nobukazu Sasaki, Atsushi Kubota, Yasuyoshi Yamamoto, Masashi Ohashi, Michiro Koike +3 more | 1988-11-29 |
| 4777498 | Image forming apparatus | Takashi Ozawa, Yasuyoshi Yamamoto, Masashi Ohashi, Akiyoshi Kimura, Nobukazu Sasaki +4 more | 1988-10-11 |
| 4754301 | Multicolor image forming apparatus with a shutter to prevent mixture of developers in plural developing devices | Akiyoshi Kimura, Masashi Ohashi, Yasuyoshi Yamamoto, Takashi Ozawa, Toshihiko Kusumoto +4 more | 1988-06-28 |
| 4740808 | Developer container and a developing apparatus usable with the same | Nobukazu Sasaki | 1988-04-26 |
| 4611899 | Developing apparatus | Nobukazu Sasaki | 1986-09-16 |
| 4583832 | Developing device | Yasumi Yoshida | 1986-04-22 |
| 4542976 | Partially openable image forming apparatus | — | 1985-09-24 |
| 4437756 | Double-side image forming apparatus | Kazuo Kawakubo, Katsushi Furuichi, Kiyokazu Namekata, Hidetoshi Tanaka, Yashikuni Tohyama +2 more | 1984-03-20 |
| 4389046 | Sheet feeding mechanism for image forming apparatus | — | 1983-06-21 |
| 4381147 | Apparatus for forming plural images from a latent image | — | 1983-04-26 |
| 4329044 | Cleaning apparatus | Tadayuki Kitajima, Tomohiro Aoki, Yoshihiko Takeoka, Kiyokazu Namekata | 1982-05-11 |