Issued Patents All Time
Showing 76–80 of 80 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5557373 | Cleaning system for charging drum of an image forming apparatus | Yoshiaki Miyashita, Takeshi Tabuchi, Kouichi Yamazaki, Nobuo Kikuchi, Kentaro Matsumoto +1 more | 1996-09-17 |
| 5512708 | Toner used in an image forming apparatus | Sadao Takahashi, Kouichi Yamazaki, Nobuo Kikuchi, Kentaro Matsumoto, Yoshiaki Miyashita +1 more | 1996-04-30 |
| 4984974 | Screw type vacuum pump with introduced inert gas | Koutarou Naya, Kazuaki Shiinoki, Kiyoshi Masujima, Riichi Uchida, Katsumi Matsubara | 1991-01-15 |
| 4797068 | Vacuum evacuation system | Kazuaki Shiinoki, Sinji Mitsuhashi, Kotaro Naya | 1989-01-10 |
| 4767284 | Screw vacuum pump unit | Kazuaki Shiinoki, Koutarou Naya, Shinji Mitsuhashi, Riichi Uchida | 1988-08-30 |