Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1093475 | Photosensitive drum unit | Keita Shimizu, Takashi Shimizu, Hideshi Nishiyama | 2025-09-16 |
| 12164263 | Toner cartridge including memory holder cover having pawl engaged with hook of gear cover | Keita Shimizu | 2024-12-10 |
| 11966194 | Image forming apparatus | Kentaro Mori, Shinya Kusuda | 2024-04-23 |
| 11892798 | Image forming apparatus capable of making toner cartridge completely attached to drum cartridge during attachment of drum cartridge to housing | Keita Shimizu | 2024-02-06 |
| 11691841 | Sheet conveyer and image forming apparatus | Yusuke Ikegami | 2023-07-04 |
| 10993455 | Powdered oil and/or fat, food and drink containing powdered oil and/or fat, and method for manufacturing powdered oil and/or fat | Yuki Kitatani, Takashi Ito | 2021-05-04 |
| 10768548 | Image forming apparatus | Koyo Yamamoto | 2020-09-08 |
| 9952552 | Developing cartridge having drive-force receiving member | Takashi Shimizu, Keita Shimizu | 2018-04-24 |
| 9952553 | Developing cartridge provided with receiving member capable of efficiently transmitting drive force to developer carrier | Takashi Shimizu, Keita Shimizu | 2018-04-24 |
| 9703258 | Developing cartridge and process cartridge | Soun Kanada, Satoru Ishikawa, Hiroya Fukuta, Takashi Shimizu | 2017-07-11 |
| 9645545 | Process cartridge and photosensitive member cartridge | Satoru Ishikawa, Tokifumi Tanaka | 2017-05-09 |
| 9618879 | Developing cartridge | Hirofumi Kuriki, Keita Shimizu | 2017-04-11 |
| 9436155 | Developing cartridge provided with receiving member capable of efficiently transmitting drive force to developer carrier | Takashi Shimizu, Keita Shimizu | 2016-09-06 |
| 9342041 | Developing cartridge having drive-force receiving member | Takashi Shimizu, Keita Shimizu | 2016-05-17 |