Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7289756 | Developer regulating member with surface roughness parameters | Hideaki Hasegawa | 2007-10-30 |
| 7194215 | Process cartridge comprising memory medium storing information for selecting one of a plurality of alternating voltages applied to charging member and such a memory medium | Satoshi Sunahara, Satoru Motohashi | 2007-03-20 |
| 7035560 | Image forming apparatus having charging member supplied with a plurality of alternating voltages and memory for storing information for selecting the voltages | Satoshi Sunahara, Satoru Motohashi | 2006-04-25 |
| 6898401 | Charging system, process cartridge and image forming apparatus | Masahiro Yoshida | 2005-05-24 |
| 6882806 | Charging apparatus determining a peak-to-peak voltage to be applied to a charging member | Satoshi Sunahara, Satoru Motohashi | 2005-04-19 |
| 6829447 | Developing apparatus | — | 2004-12-07 |
| 6741824 | Charging system, process cartridge and image forming apparatus | Masaki Ojima, Noboru Kashimura, Junichi Kato | 2004-05-25 |
| 6686942 | Memory device for an image forming apparatus storing characteristics information about a process cartridge detachably attachable to the apparatus | Gaku Konishi, Akira Domon | 2004-02-03 |
| 6559875 | Image forming apparatus with pixel density based light beam control | Shinichi Tsukida, Akira Domon | 2003-05-06 |
| 6532030 | Process cartridge, image forming apparatus, and image forming method | Gaku Konishi, Akira Domon | 2003-03-11 |
| 6370348 | Developing apparatus including intermittent developer agitating feature, and image forming apparatus using same | Koichi Suwa, Masahiro Yoshida, Hideki Matsumoto | 2002-04-09 |
| 6343193 | Process cartridge and image forming apparatus including a developer remaining amount detecting member | Hideki Matsumoto, Seiji Yamaguchi | 2002-01-29 |
| 6272306 | Developing apparatus and image forming apparatus having first and second voltages applied to a developing satisfying predetermined relationships | Masanobu Saito, Gaku Konishi, Yasushi Shimizu, Hiroshi Satoh, Akira Domon +1 more | 2001-08-07 |
| 6226464 | Developer apparatus featuring a developer container partition portion disposed between a detecting member and an agitating member | Koichi Suwa, Masahiro Yoshida, Hideki Matsumoto, Satoshi Sunahara | 2001-05-01 |
| 6167212 | Development density adjusting method for image forming apparatus | Hiroshi Satoh, Masanobu Saito, Gaku Konishi, Yasushi Shimizu, Akira Domon +1 more | 2000-12-26 |
| 6058284 | Developing apparatus | Kouichi Suwa, Seiji Yamaguchi, Hideki Matsumoto | 2000-05-02 |
| 5781835 | Developing device comprising a magnetic member | Takahiro Inoue, Masaki Ojima, Seiji Yamaguchi | 1998-07-14 |
| 5682574 | Developing apparatus having reciprocating cleaning device for photodetector | Haruhisa Oshida, Masahide Kinoshita, Koji Takahashi, Yasushi Shimizu, Akira Domon | 1997-10-28 |
| 5666606 | Image forming apparatus comprising contact type charging member | Takahiro Inoue, Kazushige Sakurai, Tadashi Onimura, Kouichi Suwa, Masaki Ojima +3 more | 1997-09-09 |
| 5649264 | Developing unit having optical detection of a residual quantity of developer in a developer container | Akira Domon, Masahide Kinoshita, Yasushi Shimizu | 1997-07-15 |
| 5618647 | Magnetic toner and image forming method | Tsutomu Kukimoto, Yasuhide Goseki, Motoo Urawa, Masayoshi Shimamura, Keita Nozawa +2 more | 1997-04-08 |
| 5589918 | Process cartridge, assembling method therefor and electrophotographic apparatus | Haruhisa Oshida, Masahide Kinoshita, Koji Takahashi, Yasushi Shimizu, Akira Domon | 1996-12-31 |
| 5185496 | Electrostatic latent image device having a coating layer provided on a developer carrying member | Katsuhiko Nishimura, Toshio Miyamoto, Tatsunori Ishiyama | 1993-02-09 |
| 5177537 | Developing apparatus with elastic regulating member urged to a developer carrying member | Hiroto Hasegawa, Toshio Miyamoto, Katsuhiko Nishimura, Tatsunori Ishiyama | 1993-01-05 |
| 5084733 | Developing apparatus having developer layer regulation means | Motoi Katoh, Takashi Hino, Michihito Yamazaki, Yasushi Sato, Kimio Nakahata | 1992-01-28 |