Issued Patents 2022
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11442404 | Drum unit, cartridge and coupling member | Makoto Hayashida, Koji Yamaguchi, Takashi Yano | 2022-09-13 |
| 11442405 | Drum unit, cartridge and coupling member | Makoto Hayashida, Koji Yamaguchi, Takashi Yano | 2022-09-13 |
| 11435693 | Drum unit, cartridge and coupling member | Makoto Hayashida, Koji Yamaguchi, Takashi Yano | 2022-09-06 |
| 11409227 | Drum unit, cartridge, electrophotographic image forming apparatus and coupling member | Masato Tanabe, Tomonori Mori, Daisuke Abe, Tadayuki Tsuda, Hideshi Kawaguchi | 2022-08-09 |
| 11334023 | Drum unit, cartridge and coupling member | Makoto Hayashida, Koji Yamaguchi, Takashi Yano | 2022-05-17 |
| D950642 | Photosensitive drum for process cartridge for image forming apparatus | Makoto Hayashida, Koji Yamaguchi, Takashi Yano | 2022-05-03 |