Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D462379 | Image drum cartridge | Junichi Ito, Sinichi Otani, Atsushi Kobayashi, Shigeki Nakajima | 2002-09-03 |
| D451539 | Toner cartridge | Junichi Ito, Sinichi Otani, Atsushi Kobayashi, Shigeki Nakajima | 2001-12-04 |
| D450752 | Toner cartridge | Junichi Ito, Sinichi Otani, Atsushi Kobayashi, Shigeki Nakajima | 2001-11-20 |
| D450344 | Image drum cartridge | Junichi Ito, Sinichi Otani, Atsushi Kobayashi, Shigeki Nakajima | 2001-11-13 |
| 6195521 | Developer cartridge with a groove receiving a projection from an image forming apparatus | Ken Nozawa, Atsushi Kurabayashi | 2001-02-27 |
| 6112037 | Color image forming apparatus having a controller for setting printing speeds in dependence on a detected number of colors in an image signal | Masato Nagata, Hisao Ono, Noboru Otaki, Atsushi Kurabayashi, Shinichi Murakami +8 more | 2000-08-29 |
| 6091919 | Developer cartridge and image forming apparatus | Ken Nozawa, Atsushi Kurabayashi | 2000-07-18 |
| 5983042 | Color image forming apparatus having a printing mechanism selectively movable to operative and non-operative positions | Masato Nagata, Hisao Ono, Noboru Otaki, Atsushi Kurabayashi, Shinichi Murakami +8 more | 1999-11-09 |
| D414507 | Toner cartridge | Ken Nozawa, Atsushi Kurabayashi | 1999-09-28 |
| D410676 | Image drum cartridge | Atsushi Kurabayashi, Sinichi Otani | 1999-06-08 |
| 5878301 | Toner image fixing device with rotational control of fixing rollers | Shinichi Katakura, Noboru Otaki, Hisao Ono, Makoto Yabuki | 1999-03-02 |
| D389860 | Toner cartridge | Shigeki Nakajima, Yukio Ota | 1998-01-27 |
| D379634 | Toner cartridge | Sinichi Ootani, Minoru Mizutani | 1997-06-03 |
| D377662 | Image drum cartridge | Sinichi Ootani, Minoru Mizutani | 1997-01-28 |
| D356815 | Toner cartridge | Shigeki Nakajima, Yukio Ota | 1995-03-28 |
| D354980 | Image drum cartridge | Shigeki Nakajima, Yukio Ota | 1995-01-31 |
| 5289249 | Electrophotographic printer having a gravity driven toner recycling unit | Mikio Yamamoto, Minoru Isobe, Shigeki Nakajima, Hisao Ono | 1994-02-22 |
| 5280324 | Toner cartridge | Hisao Ono, Yukio Ota, Hiroshi Kikuchi, Shigeki Nakajima | 1994-01-18 |
| 5264900 | Developing device including toner hopper and toner cartridge stirring portions | Shigeki Nakajima, Yukio Ota | 1993-11-23 |
| 5239345 | Image forming apparatus having function of dust removal | Hiroshi Kikuchi, Yoshitomo Koga, Masato Sakai, Katsuyuki Ito, Shinichi Katakura | 1993-08-24 |
| 5235389 | Replaceable toner cartridge with internal stirring member, and electrophotographic printer employing the same | Hiroshi Kikuchi, Yukio Ota, Yoshitomo Koga, Kazuki Obara, Shigeki Nakajima +2 more | 1993-08-10 |
| 5216462 | Toner residual amount detecting mechanism | Shigeki Nakajima, Masato Takano, Hiroshi Kikuchi, Yukio Ota | 1993-06-01 |
| D332962 | Image drum cartridge | Hiroshi Kikuchi, Hisao Ono, Shigeki Nakajima | 1993-02-02 |
| 5184177 | Electrophotographic printing apparatus | Hiroshi Kikuchi, Shigeki Nakajima, Hisao Ono | 1993-02-02 |
| 5132734 | Developing apparatus | Shigeki Nakajima, Hiroshi Kikuchi, Yoshitomo Koga, Yukio Ota | 1992-07-21 |