Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6102386 | Image forming apparatus | Masahiro Shigetomi | 2000-08-15 |
| 5903806 | Developing agent replenishing apparatus and cartridge | Isao Matsuoka | 1999-05-11 |
| D403348 | Toner container | Isao Matsuoka, Ryo Takimura, Takashi Tamura | 1998-12-29 |
| 5828934 | Driving device of developing units and toner replenishing units for use in image forming apparatus | Takashi Tamura, Kenji Sato, Masahiro Shigetomi, Isao Matsuoka | 1998-10-27 |
| 5722020 | Developer container and developer supplying apparatus | Isao Matsuoka, Yoshikazu Ikunami | 1998-02-24 |
| 5589919 | Toner cartridge and color image forming apparatus in use therewith | Yoshikazu Ikunami, Satoshi Minami | 1996-12-31 |
| 5585898 | Developing unit driving mechanism in use with a color image forming apparatus | — | 1996-12-17 |
| 5486898 | Color image forming apparatus with photoreceptor protector | Hiroyuki Moriguchi, Yoshikazu Ikunami, Masahiko Matsunawa, Akihiko Tamura, Kazuo Yasuda +6 more | 1996-01-23 |
| 5381167 | Color image forming apparatus | Tadashi Miwa, Hisao Satoh, Atsushi Ogane, Isao Matsuoka, Tadayoshi Ikeda | 1995-01-10 |
| 5323211 | Driving device of rotational body for use in image forming apparatus | Toru Makino, Tadashi Miwa | 1994-06-21 |
| 5291223 | Exposure unit for a multicolor image forming apparatus capable of better registration of the multicolor images | Atsushi Ogane, Tadashi Miwa, Isao Matsuoka, Hideo Satoh | 1994-03-01 |
| 5276491 | Image forming apparatus | Hiroshi Fuma, Mitsuo Motohashi, Akihiko Kakita | 1994-01-04 |
| 5182602 | Image forming apparatus | Akihiko Kakita, Tsugio Sugizaki | 1993-01-26 |
| 5172174 | Transfer device with insulated shield | Hiroshi Fuma, Mitsuo Motohashi, Akihiko Kakita | 1992-12-15 |
| 5153653 | Image forming apparatus | Hiroshi Fuma, Mitsuo Motohashi, Akihiko Kakita, Takashi Murahashi, Kazuo Yasuda +2 more | 1992-10-06 |
| 5065693 | Developing device | Kunihisa Yoshino, Mitsuo Motohashi | 1991-11-19 |
| 4806989 | Optical correction device | Taku Saito | 1989-02-21 |
| 4796059 | Image forming apparatus with magnification changing device | Taku Saito | 1989-01-03 |
| 4636058 | Exposure optical apparatus | — | 1987-01-13 |
| 4448514 | Split exposure optical system for copying machine | Hirofumi Sakaguchi, Tsugio Hirabayashi | 1984-05-15 |
| 4444488 | Adjustable mirror support for copying apparatus | Kazuo Murakami, Hirofumi Sakaguchi | 1984-04-24 |
| 4432633 | Electrophotographic reproducing apparatus | Isao Nosaka, Hirofumi Sakaguchi, Takao Shiozawa | 1984-02-21 |
| 4408867 | Optical scanning unit driving device for electrophotographic reproducing apparatus | Takao Shiozawa | 1983-10-11 |
| 4248794 | Process for producing 2-amino-4-acylaminophenyl ether | Hiromichi Yamaguchi | 1981-02-03 |