Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11506994 | Toner cartridge including a protrusion protruding from a center of a conveyance drive gear | Tomohiro Kubota, Naoki Nakatake, Yoshiyuki Shimizu, Shoh Tsuritani, Masato Tsuji +1 more | 2022-11-22 |
| 11231663 | Toner cartridge including a protrusion protruding from a center of a conveyance drive gear | Tomohiro Kubota, Naoki Nakatake, Yoshiyuki Shimizu, Shoh Tsuritani, Masato Tsuji +1 more | 2022-01-25 |
| 10816914 | Developer container for image forming apparatus | Tomohiro Kubota, Naoki Nakatake, Yoshiyuki Shimizu, Shoh Tsuritani, Masato Tsuji +1 more | 2020-10-27 |
| 10558145 | Downsized developer container with higher degree of freedom | Tomohiro Kubota, Naoki Nakatake, Yoshiyuki Shimizu, Shoh Tsuritani, Masato Tsuji +1 more | 2020-02-11 |
| 10295933 | Developer container, developing device, process unit, and image forming apparatus | Tomohiro Kubota, Naoki Nakatake, Yoshiyuki Shimizu, Shoh Tsuritani, Masato Tsuji +1 more | 2019-05-21 |
| 10175607 | Developer container including a convex portion, a rotator, and a recess | Tomohiro Kubota, Naoki Nakatake, Yoshiyuki Shimizu, Shoh Tsuritani, Masato Tsuji +1 more | 2019-01-08 |
| 9696657 | Developer container, developing device, process unit, and image forming apparatus | Tomohiro Kubota, Naoki Nakatake, Yoshiyuki Shimizu, Shoh Tsuritani, Masato Tsuji +1 more | 2017-07-04 |
| 9280130 | Developer container, developing device, process unit, and image forming apparatus | Tomohiro Kubota, Naoki Nakatake, Yoshiyuki Shimizu, Shoh Tsuritani, Masato Tsuji +1 more | 2016-03-08 |
| 9268300 | Process unit including a rotatable shaft along a driving force vector and image forming apparatus including the same | Yoshiyuki Shimizu, Hirobumi Ooyoshi | 2016-02-23 |
| 9239565 | Powder container, developing unit, process unit, and image forming apparatus incorporating same | Shoh Tsuritani, Yoshiyuki Shimizu, Tomohiro Kubota, Masato Tsuji | 2016-01-19 |
| 9201341 | Developer container, developing device, processing unit, image forming device, and method of manufacturing developer container | Shoh Tsuritani, Naoki Nakatake, Tomohiro Kubota | 2015-12-01 |
| 9176419 | Developer container, developing device, process unit, and image forming apparatus | Tomohiro Kubota, Naoki Nakatake, Yoshiyuki Shimizu, Shoh Tsuritani, Masato Tsuji +1 more | 2015-11-03 |
| 9141028 | Image forming apparatus and developer container, developing device, process unit, and replaceable unit therefor | Shoh Tsuritani, Tomohiro Kubota, Yoshiyuki Shimizu | 2015-09-22 |
| 9069284 | Image forming apparatus and powder transport unit | Yoshiyuki Shimizu, Tomohiro Kubota, Shoh Tsuritani, Masato Tsuji, Masanari Fujita +1 more | 2015-06-30 |
| D724655 | Powder container | Tomohiro Kubota, Sho Tsuritani, Yoshiyuki Shimizu, Emi Kita, Masato Tsuji +1 more | 2015-03-17 |
| D723099 | Powder container | Tomohiro Kubota, Sho Tsuritani, Yoshiyuki Shimizu, Emi Kita, Masato Tsuji +1 more | 2015-02-24 |
| 8913926 | Developer container, developing device, process cartridge, image forming device, and developer refilling method | Kenji Nakamura, Hirobumi Ooyoshi, Tomofumi Yoshida | 2014-12-16 |
| 8903283 | Shutter assembly, powder container, cleaning device, and image forming apparatus | Masanari Fujita, Masato Tsuji, Yoshiyuki Shimizu, Tomohiro Kubota, Shoh Tsuritani | 2014-12-02 |
| 8861991 | Developer amount detector, and developer container, development device, and image forming apparatus incorporating same | Tomohiro Kubota, Naoki Nakatake, Hirobumi Ooyoshi, Tomofumi Yoshida, Yoshiyuki Shimizu +1 more | 2014-10-14 |
| D712463 | Powder container | Tomohiro Kubota, Sho Tsuritani, Yoshiyuki Shimizu, Emi Kita, Masato Tsuji +1 more | 2014-09-02 |
| 8792808 | Developer container, developing device, process unit, and image forming apparatus | Tomohiro Kubota, Naoki Nakatake, Yoshiyuki Shimizu, Shoh Tsuritani, Masato Tsuji +1 more | 2014-07-29 |
| 8768203 | Image forming apparatus capable of effectively utilizing interior space | Tomofumi Yoshida, Hirobumi Ooyoshi, Yoshiyuki Shimizu, Takeru Muramatsu, Tomohiro Kubota +6 more | 2014-07-01 |
| 8744321 | Developer container, developing device, process unit, and image forming apparatus | Tomohiro Kubota, Naoki Nakatake, Yoshiyuki Shimizu, Shoh Tsuritani, Masato Tsuji +1 more | 2014-06-03 |
| D698387 | Powder container | Tomohiro Kubota, Sho Tsuritani, Yoshiyuki Shimizu, Emi Kita, Masato Tsuji +1 more | 2014-01-28 |
| 8354164 | Semiconductive member, and developing roll, charging roll, transfer belt, and image forming apparatus using same | Chiyoshi Nozaki, Tetsumaru Fujita, Shintaro Yamada, Yuji Nagatomo, Shin Murayama +1 more | 2013-01-15 |