Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6714748 | Image forming apparatus, recording medium in which test-pattern image forming program is recorded, test-pattern image forming method, and skew angle calculation method | Hirofumi Nakayasu | 2004-03-30 |
| 6393244 | Color shift correcting structure of image forming apparatus | Hirofumi Nakayasu | 2002-05-21 |
| 6292638 | Image forming apparatus having fixing unit for mounting/demounting | Tomoyuki Nagamine, Katsumi Takada | 2001-09-18 |
| 6219496 | Image forming apparatus | Takeo Kojima, Ryouhei Iwasaki, Hirofumi Nakayasu | 2001-04-17 |