Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9031471 | Development device and image forming apparatus incorporating same | Tomoya Ohmura, Junichi Matsumoto, Hiroshi Kikuchi, Natsumi Matsue | 2015-05-12 |
| 8688012 | Developing device and image forming apparatus | Junichi Matsumoto, Tomoya Ohmura, Hiroshi Kikuchi, Natsumi Matsue | 2014-04-01 |
| 8682187 | Development device and image forming apparatus incorporating same | Junichi Matsumoto, Tomoya Ohmura, Hiroshi Kikuchi, Natsumi Matsue | 2014-03-25 |
| 8666288 | Developing device and image forming apparatus | Junichi Matsumoto, Tomoya Ohmura, Hiroshi Kikuchi, Natsumi Matsue | 2014-03-04 |
| 8639150 | Development device and image forming apparatus | Tomoya Ohmura, Junichi Matsumoto, Hiroshi Kikuchi, Natsumi Katoh | 2014-01-28 |
| 8615186 | Development device and image forming apparatus incorporating same | Hiroshi Kikuchi, Junichi Matsumoto, Tomoya Ohmura | 2013-12-24 |
| 8515316 | Developing device and image forming apparatus | Junichi Matsumoto, Tomoya Ohmura, Natsumi Matsue, Hiroshi Kikuchi | 2013-08-20 |
| 7962055 | Image forming apparatus | Masanari Fujita, Masaki Tsuchiya, Nobuaki Fukasawa | 2011-06-14 |
| 7796905 | Multicolor image forming apparatus | Haruyuki Honda, Masahiko Saito, Masanari Fujita, Masashi Yamamoto | 2010-09-14 |
| 7493063 | Image-forming device comprising a contact charging unit | Masashi Yamamoto, Masanari Fujita | 2009-02-17 |
| 7463849 | Image forming apparatus including static pre-eliminator | Masashi Yamamoto, Masanari Fujita | 2008-12-09 |
| 7158731 | Image forming apparatus with toner concentration controller | Kaoru Kataoka | 2007-01-02 |
| 7142794 | Image forming apparatus | Masanari Fujita, Kazuhiro Wakamatsu, Masahiko Saito, Masashi Yamamoto | 2006-11-28 |
| 6487384 | Image forming electrophotography apparatus and magnetic developing unit | Hisao Okada, Hiroyuki Mabuchi, Teruaki Mitsuya, Shinya Kobayashi, Masayoshi Ishii +1 more | 2002-11-26 |
| 6330414 | Developing system having a plurality of developing rollers with opposing magnets of same polarity | Yoshitaka Fujinuma, Tomonari Hokkyou, Masayasu Anzai, Koji Kato | 2001-12-11 |
| 5923933 | Electrophotographic apparatus | Masayasu Anzai, Tsuneaki Kawanishi, Yoshitaka Fujinuma, Hiroyoshi Matsumoto, Hisao Okada +7 more | 1999-07-13 |
| 5907755 | Developing device | Yoshitaka Fujinuma, Masayasu Anzai, Hisao Okada | 1999-05-25 |
| 5701570 | Image forming apparatus employing residual toner recovery scheme | — | 1997-12-23 |
| 5666598 | Image forming method and apparatus using energy beam impingement on image forming particles to move the same | Tatsuya Sugita, Akira Arimoto, Teruaki Mitsuya, Nobuyoshi Hoshi, Mamoru Okano +4 more | 1997-09-09 |
| 5600405 | Bias cleaning system and electrostatic printing apparatus therewith and operating method thereof | Takao Umeda, Katsuya Kawai, Yosuke Saito, Hiroyuki Mabuchi, Masayasu Anzai +3 more | 1997-02-04 |
| 5574546 | Developing apparatus for an electrophotographic machine | Takao Kumasaka, Tatsuo Igawa, Tomio Sugaya, Yasuo Kikuchi | 1996-11-12 |
| 5559578 | Electrostatic recording apparatus with electrified cap and managing system thereof | Takao Umeda, Toru Miyasaka, Osamu Namikawa, Isamu Komatsu, Tetsuya Nagata +1 more | 1996-09-24 |
| 5499086 | Belt type transfer device for electrophotographic apparatus | Junichi Matsuno, Shigeru Obata, Masato Miwa, Kazuo Uno | 1996-03-12 |
| 5459562 | Recording apparatus for printing both faces of a recording medium using an electrophotographyprocess | Teruaki Mitsuya, Yasuyuki Tsuji, Yoshihiro Gunji, Hiroshi Hakuta | 1995-10-17 |
| 5373351 | Electrostatic recording apparatus and managing system thereof | Takao Umeda, Tetsuya Nagata, Tatsuo Igawa | 1994-12-13 |