Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7391682 | Optical disk system with improved signal regulation capability | Yoshiyuki Ishiyama, Toshihiro Yamashiro, Yasuhide Konishi | 2008-06-24 |
| 6282396 | Color image forming apparatus and method of obtaining color images with decreased image positional deviation | Nobuo Iwata, Mitsugu Sugiyama, Toshiya Satoh, Tadashi Shinohara, Tomonori Yabuta | 2001-08-28 |
| 6184910 | Color image forming apparatus with polygonal mirror rotation phase control | Eiichi Sasaki, Tsuyoshi Deki, Nobuo Iwata, Takeshi Motohashi, Takahiro Tamiya +1 more | 2001-02-06 |
| 6128459 | Color image forming apparatus and method of obtaining color images with decreased image positional deviation | Nobuo Iwata, Mitsugu Sugiyama, Toshiya Satoh, Tadashi Shinohara, Tomonori Yabuta | 2000-10-03 |
| 6118557 | Color image forming apparatus | Mitsugu Sugiyama, Eiichi Sasaki, Tadashi Shinohara, Kouichi Irie | 2000-09-12 |
| 5963240 | Deflecting mirror adjusting device for an image forming apparatus | Tadashi Shinohara, Nobuo Iwata, Mitsugu Sugiyama, Toshiya Sato, Tomonori Yabuta | 1999-10-05 |
| 5962783 | Apparatus for detecting rotational speed | Nobuo Iwata, Mitsugu Sugiyama, Toshiya Sato, Tadashi Shinohara, Tomonori Yabuta | 1999-10-05 |
| 5875380 | Image forming apparatus eliminating influence of fluctuation in speed of a conveying belt to correction of offset in color registration | Nobuo Iwata, Toshiya Sato, Tadashi Shinohara | 1999-02-23 |
| 5872586 | Apparatus for registration of plural image in an image forming apparatus | — | 1999-02-16 |
| 5828926 | Registration control for an image forming apparatus having an intermediate transfer belt | Nobuo Iwata, Shingo Katou, Tomonori Yabuta | 1998-10-27 |
| 5821970 | Color image forming apparatus | Eiichi Sasaki | 1998-10-13 |
| 5799228 | Image forming apparatus which prevents adverse affects from heating elements | Nobuo Iwata, Shingo Katoh, Tomonori Yabuta | 1998-08-25 |
| 5737665 | Apparatus for calibrating toner density for color images | Mitsugu Sugiyama, Eiichi Sasaki, Tadashi Shinohara, Kouichi Irie | 1998-04-07 |