Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5243389 | Toner hopper having stirring and feeding rollers | Naoyuki Yamane, Keiji Kato, Katsuzo Uchida, Hisashi Kunihiro, Hiroshi Kawahito +4 more | 1993-09-07 |
| 5235130 | Developer cartridge | Katsuzo Uchida, Keiji Kato, Naoyuki Yamane, Yasuo Imai, Hisashi Kunihiro | 1993-08-10 |