Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10209668 | Image forming apparatus, process cartridge, developing cartridge, and drum cartridge | Akihisa Matsukawa, Kuniaki Tamagaki, Takanori Watanabe, Hiroyoshi Iwayama, Makoto Tokudome +2 more | 2019-02-19 |
| 9977368 | Developing apparatus, process cartridge, and image forming apparatus | Hiroki Tanaka, Motonari Ito, Satoshi Sunahara, Akihisa Matsukawa | 2018-05-22 |
| 9971298 | Image forming apparatus, process cartridge, developing cartridge, and drum cartridge | Akihisa Matsukawa, Kuniaki Tamagaki, Takanori Watanabe, Hiroyoshi Iwayama, Makoto Tokudome +2 more | 2018-05-15 |