Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8517064 | Powder filling apparatus, powder filling method and process cartridge | Tetsuo Isomura, Manabu Jimba, Masashi Koseki, Yutaka Ban | 2013-08-27 |
| 8205646 | Powder filling apparatus, powder filling method and process cartridge | Tetsuo Isomura, Manabu Jimba, Masashi Koseki, Yutaka Ban | 2012-06-26 |
| 7836921 | Powder filling apparatus, powder filling method and process cartridge | Tetsuo Isomura, Manabu Jimba, Masashi Koseki, Yutaka Ban | 2010-11-23 |