Issued Patents All Time
Showing 26–50 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6898407 | Desktop color image forming apparatus and method of making the same | Yuusuke Noguchi, Hiromichi Ema, Hiroshi Ishii, Yutaka Fukuchi, Kazuosa Kuma +5 more | 2005-05-24 |
| 6801749 | Apparatuses for color image formation, tandem color image formation and image formation | Motokazu Yasui, Hiroyasu Shijo, Tomotoshi Nakahara | 2004-10-05 |
| 6785504 | Apparatuses for color image formation, tandem color image formation and image formation | Motokazu Yasui, Hiroyasu Shijo, Tomotoshi Nakahara | 2004-08-31 |
| 6778797 | Charging roller having elastic member | Yukiko Iwasaki, Hitoshi Ishibashi, Hiroshi Yoshinaga, Takatsugu Fujishiro, Masami Hiramatsu | 2004-08-17 |
| 6766137 | Apparatuses for color image formation, tandem color image formation and image formation | Motokazu Yasui, Hiroyasu Shijo, Tomotoshi Nakahara | 2004-07-20 |
| 6748190 | Apparatus and method for replenishing a developing device with toner while suppressing toner remaining | Takaaki Yanagisawa, Kazuhiko Yuuki, Akio Kosuge, Yoshinori Ozawa, Yoshi Hattori +4 more | 2004-06-08 |
| 6719469 | Ink jet recording apparatus capable of performing a duplex print operation | Motokazu Yasui, Tsumori Sato, Masanori Horike, Masato Yokoyama | 2004-04-13 |
| 6628908 | Toner supply unit and image forming apparatus | Junichi Matsumoto, Nobuo Kasahara, Nobuo Iwata, Satoshi Muramatsu, Tomoyuki Ichikawa +5 more | 2003-09-30 |
| 6591077 | Image forming apparatus and toner container therefor | Takaaki Yanagisawa, Tomotoshi Nakahara, Kazuhisa Sudo, Yoshio Hattori, Kouta Fujimori | 2003-07-08 |
| 6567637 | Apparatus and method for replenishing a developing device with toner while suppressing toner remaining | Takaaki Yanagisawa, Kazuhiko Yuuki, Akio Kosuge, Yoshinori Ozawa, Yoshi Hattori +4 more | 2003-05-20 |
| 6567643 | Apparatuses for color image formation, tandem color image formation and image formation | Motokazu Yasui, Hiroyasu Shijo, Tomotoshi Nakahara | 2003-05-20 |
| 6546219 | Method and apparatus for performing a charging process on an image carrying device | Hiroshi Yoshinaga, Yukiko Iwasaki, Hitoshi Ishibashi, Takatsugu Fujishiro, Masami Hiramatsu +1 more | 2003-04-08 |
| 6519428 | Image forming apparatus having mixed toner consumption mode | Megumi Ohtoshi, Hitoshi Ishibashi, Yoshinori Ozawa | 2003-02-11 |
| 6507720 | Color image forming apparatus and toner replenishing apparatus each including plural toner containers received in receiving member of setting part and toner containers therefor | Masaaki Kabumoto, Goro Katsuyama, Kanae Amemiya, Masahiro Kurita, Masahiro Yonekawa +6 more | 2003-01-14 |
| 6507354 | Image forming apparatus with a writing laser power control | — | 2003-01-14 |
| 6505022 | Image forming apparatus having protective layer on the surface of image bearing member to avoid adhesion of film of additives to image bearing member | Akio Kosuge, Hitoshi Ishibashi, Hiroshi Yoshinaga, Yukiko Iwasaki | 2003-01-07 |
| 6501913 | Container, its support structure, and image formation apparatus | Yoshio Hattori, Tomotoshi Nakahara, Takaaki Yanagisawa, Kazuhisa Sudo, Kouta Fujimori | 2002-12-31 |
| 6470161 | Apparatus for minimizing toner contamination on an image formation member | Takatsugu Fujishiro, Masami Hiramatsu, Hitoshi Ishibashi, Hiroshi Yosinaga, Yukiko Iwasaki | 2002-10-22 |
| 6416176 | Ink-jet printing system having an improved sheet transport mechanism | Motokazu Yasui, Masato Yokoyama | 2002-07-09 |
| 6393241 | Nozzle having an end portion capable of penetrating into a toner discharging portion included in a toner container that stores powdery toner | Junichi Matsumoto, Nobuo Kasahara, Satoshi Muramatsu, Nobuo Iwata, Takaaki Yanagisawa +4 more | 2002-05-21 |
| 6366754 | Color image forming apparatus with toner recycling | Kazuhiko Yuuki, Hiroshi Yoshinaga, Yoshinori Ozawa, Atsushi Takehara | 2002-04-02 |
| 6334039 | Method and apparatus for image forming apparatus capable of accurately detecting toner image patterns | Hiroshi Yoshinaga, Kazuhiko Yuuki, Yoshinori Ozawa, Atsushi Takehara | 2001-12-25 |
| 6263175 | Image forming apparatus including a charging device with a cleaning member | Akira Sawada | 2001-07-17 |
| 6104419 | Image forming apparatus with a writing laser power control | — | 2000-08-15 |
| 5946529 | Image forming apparatus using a roller type charging system | Toshiyuki Uchida, Katsumi Masuda, Masato Yokoyama, Takaya Muraishi | 1999-08-31 |