Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7809291 | Image forming apparatus with a two component developer, toner density detection and toner density correction | Nobutaka Takeuchi, Shinji Kato, Shin Hasegawa, Kayoko Tanaka, Yushi Hirayama +3 more | 2010-10-05 |
| 7542697 | Toner supply unit and image forming apparatus | Junichi Matsumoto, Nobuo Kasahara, Nobuo Iwata, Satoshi Muramatsu, Tomoyuki Ichikawa +5 more | 2009-06-02 |
| 7356290 | Toner supply unit and image forming apparatus | Junichi Matsumoto, Nobuo Kasahara, Nobuo Iwata, Satoshi Muramatsu, Tomoyuki Ichikawa +5 more | 2008-04-08 |
| 7289748 | Apparatus and method for replenishing a developing device with toner while suppressing toner remaining | Takaaki Yanagisawa, Masumi Sato, Kazuhiko Yuuki, Akio Kosuge, Yoshinori Ozawa +4 more | 2007-10-30 |
| 7218880 | Apparatus and method for replenishing a developing device with toner while suppressing toner remaining | Takaaki Yanagisawa, Masumi Sato, Kazuhiko Yuuki, Akio Kosuge, Yoshinori Ozawa +4 more | 2007-05-15 |
| 7209689 | Toner supply unit and image forming apparatus | Junichi Matsumoto, Nobuo Kasahara, Nobuo Iwata, Satoshi Muramatsu, Tomoyuki Ichikawa +5 more | 2007-04-24 |
| 7130558 | Toner supply unit and image forming apparatus | Junichi Matsumoto, Nobuo Kasahara, Nobuo Iwata, Satoshi Muramatsu, Tomoyuki Ichikawa +5 more | 2006-10-31 |
| 7088945 | Toner supply unit and image forming apparatus | Junichi Matsumoto, Nobuo Kasahara, Nobuo Iwata, Satoshi Muramatsu, Tomoyuki Ichikawa +5 more | 2006-08-08 |
| 6829465 | Method and apparatus for image forming capable of effectively performing color displacement detection | Tetsuo Yamanaka, Hiroyasu Shijo, Kazuhiko Kobayashi, Jun Hosokawa, Motonori Hanada +1 more | 2004-12-07 |
| 6748190 | Apparatus and method for replenishing a developing device with toner while suppressing toner remaining | Takaaki Yanagisawa, Masumi Sato, Kazuhiko Yuuki, Akio Kosuge, Yoshinori Ozawa +4 more | 2004-06-08 |
| 6690896 | Image forming apparatus, replacement assembly for image forming apparatus and integrated circuit chip therefor | Motonori Hanada, Jun Hosokawa, Kazuhiko Yuuki | 2004-02-10 |
| 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, Masumi Sato, Kazuhisa Sudo, Yoshio Hattori | 2003-07-08 |
| 6567637 | Apparatus and method for replenishing a developing device with toner while suppressing toner remaining | Takaaki Yanagisawa, Masumi Sato, Kazuhiko Yuuki, Akio Kosuge, Yoshinori Ozawa +4 more | 2003-05-20 |
| 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 |
| 6501913 | Container, its support structure, and image formation apparatus | Yoshio Hattori, Tomotoshi Nakahara, Takaaki Yanagisawa, Kazuhisa Sudo, Masumi Sato | 2002-12-31 |
| 6496677 | Image forming apparatus and image forming method | — | 2002-12-17 |
| 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 |
| 6181892 | Image forming apparatus and method for developing toner patches | — | 2001-01-30 |
| 6055386 | Apparatus and method for detecting developing ability of an image forming apparatus with varied LED continuous lighting time for image forming and process control modes | Shinji Kato, Takayuki Maruta | 2000-04-25 |
| 5860038 | Apparatus and method for detecting developing ability of an image forming apparatus | Shinji Kato, Takayuki Maruta | 1999-01-12 |
| 5761570 | Color toner density sensor and image forming apparatus using the same | Noboru Sawayama | 1998-06-02 |
| 5630195 | Color toner density sensor and image forming apparatus using the same | Noboru Sawayama | 1997-05-13 |