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Patent applications and USPTO patent grants for Yahagi; Johji.The latest application filed is for "developing device and image forming apparatus including same".
Patent | Date |
---|---|
Developing device with a developer regulator and a stopper Grant 11,307,515 - Kikuchi , et al. April 19, 2 | 2022-04-19 |
Developer conveyance device and image forming apparatus incorporating same Grant 10,935,907 - Ishizuka , et al. March 2, 2 | 2021-03-02 |
Developing Device And Image Forming Apparatus Including Same App 20210033998 - KIKUCHI; Hiroshi ;   et al. | 2021-02-04 |
Developer Conveyance Device And Image Forming Apparatus Incorporating Same App 20200387085 - ISHIZUKA; Yusuke ;   et al. | 2020-12-10 |
Cleaning Device, Process Cartridge, And Image Forming Apparatus App 20200233365 - Kimura; Hideki ;   et al. | 2020-07-23 |
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