Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9114544 | Cutting device and image forming system | Toshio Shida, Takuya Akabori, Masaaki Ikeda, Hitoshi Uchida | 2015-08-25 |
| 7463858 | Fixing device and image forming apparatus with horizontally moving separating claw | Yasuo Shiokawa, Akira Kosugi | 2008-12-09 |
| 7403732 | Image forming apparatus equipped with LED printing head | Akihiko Shimazu, Shinobu KONNO | 2008-07-22 |
| 7280796 | Image forming apparatus | Hiroshi Isokawa, Seiji Yamaguchi | 2007-10-09 |
| 7155149 | Image forming apparatus which detects abnormality condition in feeding of toner | Seiji Yamaguchi, Hiroshi Isokawa, Yasuo Shiokawa | 2006-12-26 |
| 7092663 | Image forming apparatus and image forming method | Kouki Takahashi, Hirotaka Kabashima, Hiroshi Isokawa | 2006-08-15 |
| 7082279 | Toner replenishment device for use in electrophotographic image forming apparatus | Seiji Yamaguchi, Hiroshi Isokawa | 2006-07-25 |
| 7072606 | Electrophotographic image forming apparatus equipped with toner conveyance device | Seiji Yamaguchi | 2006-07-04 |
| 7062206 | Toner supplying apparatus and image forming apparatus | Seiji Yamaguchi, Hiroshi Isokawa, Yasuo Shiokawa | 2006-06-13 |
| 7010251 | Toner conveyance device and image forming apparatus equipped therewith | Kazumichi Yamauchi, Satoshi Sakata, Seiji Yamaguchi, Hiroshi Isokawa, Hiroyuki Watanabe +1 more | 2006-03-07 |
| 6829463 | Toner replenishing method with improved storage and separation units | Seiji Yamaguchi, Hiroshi Isokawa | 2004-12-07 |
| 5920759 | Sheet curl correcting mechanism and image forming apparatus having the mechanism | Takahiko Ushiroji | 1999-07-06 |
| 4650176 | Automatic sheet reversing apparatus | Tsugio Sugizaki, Tadashi Abe, Fumio Haibara, Hiroaki Ura, Tooru Matsumoto | 1987-03-17 |