Issued Patents All Time
Showing 1–25 of 253 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12287603 | Drum unit, cartridge and coupling member | Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi | 2025-04-29 |
| 12172862 | Sheet feeding apparatus and image forming apparatus | Masato Suzuki, Kenichirou Isobe, Eiji Wakiyama, Hidehiro Ushiozu | 2024-12-24 |
| 12124211 | Drum unit, cartridge and coupling member | Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi | 2024-10-22 |
| 11970359 | Technique for switching rotational speed of plurality of rotating members | Satoshi Tsuda | 2024-04-30 |
| 11796953 | Image forming system and image forming apparatus | Daisuke Momiyama, Hidehiro Ushiozu, Masato Suzuki, Tomoki Fujikawa | 2023-10-24 |
| 11762330 | Drum unit, cartridge and coupling member | Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi | 2023-09-19 |
| 11513748 | Image forming system, image forming apparatus, and feeding apparatus | Masaki Kobayashi, Hidehiro Ushiozu, Masato Suzuki, Kosuke Ogino | 2022-11-29 |
| 11442405 | Drum unit, cartridge and coupling member | Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi | 2022-09-13 |
| 11442404 | Drum unit, cartridge and coupling member | Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi | 2022-09-13 |
| 11435693 | Drum unit, cartridge and coupling member | Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi | 2022-09-06 |
| 11340847 | Image forming system, image forming apparatus, and feeding apparatus | Masaki Kobayashi, Hidehiro Ushiozu, Masato Suzuki, Kosuke Ogino | 2022-05-24 |
| 11334023 | Drum unit, cartridge and coupling member | Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi | 2022-05-17 |
| D950642 | Photosensitive drum for process cartridge for image forming apparatus | Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi | 2022-05-03 |
| 11237512 | Image forming system and image forming apparatus | Daisuke Momiyama, Hidehiro Ushiozu, Masato Suzuki, Tomoki Fujikawa | 2022-02-01 |
| 11133880 | Computer system, method for estimating radio wave propagation characteristic in space, and computer | Hiroki Yamada, Yuichi Igarashi, Kenzaburo Fujishima, Masami OONISHI | 2021-09-28 |
| 11073790 | Drum unit, cartridge and coupling member | Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi | 2021-07-27 |
| 11073791 | Drum unit, cartridge and coupling member | Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi | 2021-07-27 |
| 11067948 | Drum unit, cartridge and coupling member | Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi | 2021-07-20 |
| 11067947 | Drum unit, cartridge and coupling member | Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi | 2021-07-20 |
| 11061368 | Drum unit, cartridge and coupling member | Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi | 2021-07-13 |
| 11061367 | Drum unit, cartridge and coupling member | Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi | 2021-07-13 |
| 11061366 | Drum unit, cartridge and coupling member | Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi | 2021-07-13 |
| 11061364 | Drum unit, cartridge and coupling member | Tetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi | 2021-07-13 |
| 10993972 | Therapeutic agent for ischemic diseases | Yuko Wada, Yuko Shimatani, Takeshi Masaki | 2021-05-04 |
| 10969731 | Electrical contact spring and electrical contact member to be used for image forming apparatus and image forming apparatus | Emi Machii, Masaki Seto | 2021-04-06 |