Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |
| 6567643 | Apparatuses for color image formation, tandem color image formation and image formation | Motokazu Yasui, Hiroyasu Shijo, Masumi Sato | 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, Takaaki Yanagisawa, Kazuhisa Sudo, Kouta Fujimori, Masumi Sato | 2002-12-31 |
| 6493532 | Slide-rotating collar protecting rotatable resin shaft | Keishi Nishioka, Toshiyuki Itoh | 2002-12-10 |
| 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 |
| 5869213 | Multicolor image forming method preventing contamination of toner on an image carrier with toner on a developing carrier | Naoki Iwata, Hisao Murayama, Ichiro Komuro | 1999-02-09 |
| 5640229 | Image forming apparatus having a positioning device for a developing unit | — | 1997-06-17 |
| 5541029 | Multicolor image forming method preventing mixing of colors | Naoki Iwata, Hisao Murayama, Ichiro Komuro | 1996-07-30 |
| 5280362 | Digital copier for copying a bicolored document at the same speed as a monocolored document | Koichi Noguchi, Hiroshi Takahashi, Yuji Yasuda, Michihito Ohashi | 1994-01-18 |
| 5258813 | Developing device for a multicolor image forming apparatus having a toner particle size distribution which prevents mixture of toners of different colors | Hisao Murayama | 1993-11-02 |