Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5347343 | Photosensitive drum cartridge and an image forming apparatus using the same | Yoshinori Ohtsuka, Hideki Umeda, Toyokazu Mori, Atsuyuki Katoh | 1994-09-13 |
| 5316621 | Method of pulping waste pressure-sensitive adhesive paper | Osamu Kitao, Masatoshi Okuda, Shunichi Uchimura, Jun Tanaka | 1994-05-31 |
| 5177539 | Developing device | — | 1993-01-05 |
| 5017962 | Image forming apparatus with process-cartridges | Atsuyuki Katoh, Keizo Fukunaga | 1991-05-21 |
| 4933724 | Fixing device for electrophotography | Yuji Sugimoto | 1990-06-12 |
| 4925062 | Paper feeder | Kimihide Tsukamoto | 1990-05-15 |
| 4840300 | Paper conveying roller for image forming apparatus | — | 1989-06-20 |
| 4802439 | Pressure applying mechanism for fixing rollers of a copying apparatus | Yuji Sugimoto, Shoichiro Yoshiura | 1989-02-07 |
| 4746957 | Variable magnification copy machine | Haruo Nishiyama | 1988-05-24 |
| 4618247 | Photoreceptor pre-initializing electrophotographic copying machine | — | 1986-10-21 |