Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7595813 | Image forming apparatus | — | 2009-09-29 |
| 7453484 | Image forming apparatus | — | 2008-11-18 |
| 5517283 | Image forming apparatus including improved toner image density detecting arrangement | Sadao Tanigawa | 1996-05-14 |
| 5506659 | Image density control device having an original mounting element with a vertically adjustable means | — | 1996-04-09 |
| 5477312 | Method of controlling image density | — | 1995-12-19 |
| 5396314 | Image forming apparatus having functional redundancy system | Yasushi Umeda, Tetsuo Tomiyama, Hiroyuki Yoshikawa, Yuichi Koike, Yoshiki Shimomura +1 more | 1995-03-07 |
| 5369473 | Image forming apparatus | Kazuhiro Ogawa | 1994-11-29 |
| 5146275 | Composite image forming apparatus | Eiichi Tone, Yosuke Ohata | 1992-09-08 |
| 4873549 | Device for detecting the life of an image forming process unit, opening of a seal of the unit and attachment of the unit to an image forming apparatus | Tomio Tada, Junichi Hirobe, Junichi Takamatsu, Yukihiro Aikawa | 1989-10-10 |