Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5243389 | Toner hopper having stirring and feeding rollers | Naoyuki Yamane, Keiji Kato, Miki Demoto, Hisashi Kunihiro, Hiroshi Kawahito +4 more | 1993-09-07 |
| 5239805 | Method of packing a developer cartridge | Keiji Kato, Yukinori Andou, Naoyuki Yamane, Yasuo Imai | 1993-08-31 |
| 5235130 | Developer cartridge | Miki Demoto, Keiji Kato, Naoyuki Yamane, Yasuo Imai, Hisashi Kunihiro | 1993-08-10 |