Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6628910 | Toner cartridge for image forming apparatus | Hiroshi Tanisawa, Fumito Mizoguchi, Hisashi Kunihiro, Takeshi Wakabayashi, Hiroshi Kawahito | 2003-09-30 |
| 6311025 | Interchangeable part recognizing apparatus and image forming apparatus | Kenichi Nagata, Toshihide Morimoto, Hisashi Kunihiro | 2001-10-30 |
| 6212338 | Image forming device with communication to supplementary toner container | Haruo Nishiyama, David Isner, Kenichi Nagata | 2001-04-03 |
| 5915691 | Document feeder and cover for an image forming apparatus | Masanobu Deguchi, Takahiro Fukunaga, Masakiyo Okuda, Junichi Kajiwara, Yukinari Sato +5 more | 1999-06-29 |
| 5624107 | Image forming apparatus with a document feeder | Masanobu Deguchi, Junichi Kajiwara, Masakiyo Okuda, Michiyuki Suzuki, Shinji Kato +1 more | 1997-04-29 |
| 5592270 | Developing device in an electrophotographic apparatus capable of controlling a discharge of deteriorated developer and method of discharging deteriorated developer | Yasuhiro Takai, Hirokazu Tanaka, Atsushi Ueda, Hideo Yamasa, Fumio Shimazu | 1997-01-07 |
| 5576820 | Xerographic apparatus with a detachable corona charger | Masakiyo Okuda | 1996-11-19 |
| 5440376 | Electrophotographic apparatus | — | 1995-08-08 |
| 5398098 | Image forming apparatus | Takahiro Fukunaga, Osamu Nakayama, Masakiyo Okuda, Kazuo Nakamura | 1995-03-14 |
| 5393044 | Paper feeder | Masakiyo Okuda, Souichi Takata | 1995-02-28 |
| 5194900 | Developer cartridge having easily removable sealing material | Hiroshi Kinashi | 1993-03-16 |
| 5175587 | Developing apparatus having a detachable developer cartridge | Keiji Kato, Toshiyuki Kurosaka, Hiroshi Kawahito | 1992-12-29 |
| 4998140 | Developing device for copier with sealing means | Kazuhiro Satou, Hisashi Kunihiro, Akio Shiomi, Naotaka Funayama | 1991-03-05 |
| 4970557 | Electrophotographic apparatus controlling image quality according to condition of deterioration | Jitsuo Masuda, Hiroshi Kinashi, Junji Morimoto, Ken Yamagishi, Teruhiko Noguchi +1 more | 1990-11-13 |
| 4952989 | Photoreceptor attachment device for an electrophotographic copying machine | Tadaaki Kawano, Susumu Murakami, Fukusaburo Ito, Takashi Miyaji, Masaru Nishijima | 1990-08-28 |
| 4920026 | Image formation method and apparatus using light and pressure sensitive sheets | Iwakazu Honda | 1990-04-24 |
| 4914481 | Developing apparatus | Tamio Yoshikai, Masato Asanuma, Masatoshi Kaneshige | 1990-04-03 |
| 4849791 | Waste toner collecting system | Takahiro Fukunaga, Kozo Takahashi, Shoichiro Yoshiura | 1989-07-18 |
| 4650097 | Developer material supply arrangement | Masaru Nishijima | 1987-03-17 |
| 4579328 | Copy paper feeding device for electrophotographic copying machine | Mitsuru Mizutani | 1986-04-01 |
| 4440280 | Spring clutch mechanism | — | 1984-04-03 |