Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7212763 | Image forming apparatus and seal portion for use in the same | Kiyoshi Sakoh, Masaru Sakuma | 2007-05-01 |
| 6445888 | Image forming apparatus having a detachable cartridge and developer residual amount sensor | Kazumasa Fujiwara, Shigeru Morimoto, Kiyoshi Sakoh | 2002-09-03 |
| 6347195 | Image forming apparatus and cartridge discriminating apparatus | Mikio Saiki, Masami Sakuma | 2002-02-12 |
| 5884130 | Developing device with support structure for conveying means | Yasuyuki Tsutsumi, Hideaki Sakata | 1999-03-16 |
| 5532791 | Error detection apparatus for detecting errors of toner sensing in an image forming apparatus | Yasuhito Takahashi, Tsutomu Kimura | 1996-07-02 |
| 5510883 | Electrophotographic single-component developing device | Tsutomu Kimura, Masaaki Fukuhara, Yasuhito Takahashi | 1996-04-23 |
| 5463452 | Single-component developing apparatus | Shigeru Inaba, Masaaki Fukuhara, Makoto Hirota, Mitsuo Yamamoto, Jun Abe +5 more | 1995-10-31 |
| 5387964 | Developing apparatus including a partition between a developing roll and a stirring member | Makoto Kanno, Yoshio Shiina, Akihiko Kato | 1995-02-07 |
| 5374977 | Apparatus for detecting and controlling a toner run-out in a developing unit | Yoshio Shiina, Takayuki Sunaga, Makoto Kanno, Toru Ishikawa, Hideaki Miyata | 1994-12-20 |
| 5160966 | Apparatus for detecting toner shortage in developing unit | Yoshio Shiina, Akihiko Kato, Makoto Kanno, Akihiko Sato | 1992-11-03 |
| 5124752 | Developing apparatus | Makoto Kanno, Yoshio Shinna, Akihiko Kato, Toru Ishikawa | 1992-06-23 |