Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12038710 | Image forming apparatus capable of accurately acquiring electrical resistance value of transfer member, electrical resistance value acquisition method | Ryota Okui, Yoshihiro Yamagishi, Tamotsu Shimizu, Kazunori Tanaka | 2024-07-16 |
| 11982965 | Image forming apparatus capable of acquiring potential value of exposed area on image-carrying member, potential value acquisition method | Kazunori Tanaka, Yoshihiro Yamagishi, Tamotsu Shimizu, Ryota Okui | 2024-05-14 |
| 11249415 | Image forming apparatus using two-component developer including toner and carrier that determines toner charge amount based on a developing current | Tamotsu Shimizu, Takahiro Okubo, Yohei Wakasa | 2022-02-15 |
| 11143979 | Image forming apparatus having simple configuration and capable of measuring toner current included in developing current, and accurately calculating toner charge amount based on measurement result | Tamotsu Shimizu, Mitsuhiro Hashimoto, Takahiro Okubo, Yohei Wakasa | 2021-10-12 |
| 11067923 | Image forming apparatus capable of predicting the level of occurrence of a transfer memory and the cause of occurrence thereof | Tamotsu Shimizu, Takahiro Okubo, Mitsuhiro Hashimoto, Shiro Kaneko | 2021-07-20 |
| 10996585 | Image forming apparatus | Tamotsu Shimizu, Mitsuhiro Hashimoto, Takahiro Okubo, Shiro Kaneko | 2021-05-04 |
| 10921729 | Image forming apparatus | Tamotsu Shimizu, Yasushi Imanishi, Satoshi Sunayama, Ai Takagami, Kanako Kikuchi | 2021-02-16 |
| 10551766 | Image forming apparatus | Satoshi Sunayama | 2020-02-04 |
| 10241461 | Image forming apparatus for forming images on media using developer that includes toner | — | 2019-03-26 |
| 10061251 | Image forming apparatus and image forming system | — | 2018-08-28 |
| 9841719 | Image forming apparatus | — | 2017-12-12 |
| 8882102 | Image forming apparatus | — | 2014-11-11 |