Issued Patents All Time
Showing 25 most recent of 86 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12306573 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Masatoshi Yamashita, Satoshi Nishiya | 2025-05-20 |
| 12287601 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Satoshi Nishiya, Masatoshi Yamashita | 2025-04-29 |
| 12050432 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Satoshi Nishiya, Masatoshi Yamashita | 2024-07-30 |
| 11960237 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Masatoshi Yamashita, Satoshi Nishiya | 2024-04-16 |
| 11614710 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Satoshi Nishiya, Masatoshi Yamashita | 2023-03-28 |
| 11520284 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Masatoshi Yamashita, Satoshi Nishiya | 2022-12-06 |
| 11385593 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Satoshi Nishiya, Masatoshi Yamashita | 2022-07-12 |
| 11111875 | Sliding structure for internal combustion engine, method for controlling idling operation, and method for controlling operation of internal combustion engine | Mitsuru Urabe, Hirokazu Murata, Jyuta Tase, Kazumi Moroi | 2021-09-07 |
| 11112751 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Satoshi Nishiya, Masatoshi Yamashita | 2021-09-07 |
| 11016438 | Cartridge, photosensitive member unit and electrophotographic image forming apparatus | Shigemi Kamoshida, Takuya Kawakami, Hiroki Ogino | 2021-05-25 |
| 10996623 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Masatoshi Yamashita, Satoshi Nishiya | 2021-05-04 |
| 10901365 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Satoshi Nishiya, Masatoshi Yamashita | 2021-01-26 |
| 10795311 | Cartridge, photosensitive member unit and electrophotographic image forming apparatus | Shigemi Kamoshida, Takuya Kawakami, Hiroki Ogino | 2020-10-06 |
| 10712708 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Masatoshi Yamashita, Satoshi Nishiya | 2020-07-14 |
| 10705480 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Satoshi Nishiya, Masatoshi Yamashita | 2020-07-07 |
| 10386782 | Image forming apparatus | Masanari Morioka | 2019-08-20 |
| 10228652 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Masatoshi Yamashita, Satoshi Nishiya | 2019-03-12 |
| 10139777 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Satoshi Nishiya, Masatoshi Yamashita | 2018-11-27 |
| 9804560 | Cartridge, process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Masatoshi Yamashita, Satoshi Nishiya | 2017-10-31 |
| 9727021 | Cartridge, image forming apparatus and manufacturing method of the cartridge | Yuichi Fukui | 2017-08-08 |
| 9720374 | Cartridge, image forming apparatus and manufacturing method of the cartridge | Yuichi Fukui | 2017-08-01 |
| 9429877 | Process cartridge and electrophotographic image forming apparatus | Masaaki Sato, Masatoshi Yamashita, Satoshi Nishiya | 2016-08-30 |
| 9310762 | Process cartridge and electrophotographic image forming apparatus | Yasufumi Yoshino, Katsuhiko Oba | 2016-04-12 |
| 9291994 | Cartridge and image forming apparatus | Yuichi Fukui | 2016-03-22 |
| 9285712 | Developing device and process cartridge for suppressing toner leakage | Shinjiro Toba | 2016-03-15 |