Issued Patents All Time
Showing 51–53 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7424263 | Toner recovery belt conveyor, process cartridge, and image forming apparatus using the same | Yoshiyuki Shimizu, Yoshihiro Kawakami, Tomohiro Kubota, Hirobumi Ooyoshi, Koji Kato +1 more | 2008-09-09 |
| 7224915 | Image forming apparatus and image forming unit | Shintaro Yamada, Kenji Asuwa, Susumu Tateyama, Hirobumi Ooyoshi | 2007-05-29 |
| 6549731 | Image forming apparatus | Masahiko Saito, Akira Sasaki, Koichi Sato, Satoshi Narita, Yoshitaro Ishii | 2003-04-15 |