Issued Patents All Time
Showing 25 most recent of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12411449 | Process unit including first, second and third conveyance members for conveying developer | Naoki Maeda, Shunsuke Uratani, Makoto Hayashida, Yuuki Nakamura, Joji Goto | 2025-09-09 |
| 12287603 | Drum unit, cartridge and coupling member | Makoto Hayashida, Koji Yamaguchi, Takashi Yano | 2025-04-29 |
| 12271147 | Cartridge including pressed portion to be pressed by a pressing portion of an image forming apparatus | Yuko Harada, Shunsuke Uratani, Makoto Hayashida | 2025-04-08 |
| 12210311 | Cartridge, attachment and mounting kit | Goshi Ozaki, Noriyuki Komatsu | 2025-01-28 |
| 12124211 | Drum unit, cartridge and coupling member | Makoto Hayashida, Koji Yamaguchi, Takashi Yano | 2024-10-22 |
| 11829096 | Cartridge, attachment and mounting kit | Goshi Ozaki, Shigemi Kamoshida, Isao Koishi, Yukio Kubo, Noriyuki Komatsu | 2023-11-28 |
| 11815830 | Toner cartridge having a variable volume pump and a feeding path from the pump portion to a discharge opening | Hiroomi Matsuzaki, Hiroki Ogino | 2023-11-14 |
| 11762330 | Drum unit, cartridge and coupling member | Makoto Hayashida, Koji Yamaguchi, Takashi Yano | 2023-09-19 |
| 11733636 | Drum unit, cartridge, electrophotographic image forming apparatus and coupling member | Tomonori Mori | 2023-08-22 |
| 11442405 | Drum unit, cartridge and coupling member | Makoto Hayashida, Koji Yamaguchi, Takashi Yano | 2022-09-13 |
| 11442404 | 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 |
| 11150591 | Drum unit, cartridge, electrophotographic image forming apparatus and coupling member | Tomonori Mori | 2021-10-19 |
| 11073791 | Drum unit, cartridge and coupling member | Makoto Hayashida, Koji Yamaguchi, Takashi Yano | 2021-07-27 |
| 11073790 | Drum unit, cartridge and coupling member | Makoto Hayashida, Koji Yamaguchi, Takashi Yano | 2021-07-27 |
| 11067947 | Drum unit, cartridge and coupling member | Makoto Hayashida, Koji Yamaguchi, Takashi Yano | 2021-07-20 |
| 11067942 | Drum unit, cartridge, electrophotographic image forming apparatus and coupling member | Masato Tanabe, Tomonori Mori, Daisuke Abe, Tadayuki Tsuda, Hideshi Kawaguchi | 2021-07-20 |
| 11067948 | Drum unit, cartridge and coupling member | Makoto Hayashida, Koji Yamaguchi, Takashi Yano | 2021-07-20 |
| 11061368 | Drum unit, cartridge and coupling member | Makoto Hayashida, Koji Yamaguchi, Takashi Yano | 2021-07-13 |
| 11061367 | Drum unit, cartridge and coupling member | Makoto Hayashida, Koji Yamaguchi, Takashi Yano | 2021-07-13 |
| 11061366 | Drum unit, cartridge and coupling member | Makoto Hayashida, Koji Yamaguchi, Takashi Yano | 2021-07-13 |
| 11061364 | Drum unit, cartridge and coupling member | Makoto Hayashida, Koji Yamaguchi, Takashi Yano | 2021-07-13 |