Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12405554 | Developing device and image forming apparatus | Tamotsu Shimizu, Kenichi Tamaki, Hiroshi Yamazaki, Junichi Nakagawa | 2025-09-02 |
| 12346061 | Developing device provided with a toner trapping mechanism | Tamotsu Shimizu, Hiroshi Yamazaki, Kenichi Tamaki, Junichi Nakagawa | 2025-07-01 |
| 12092993 | Image forming apparatus | Kenichi Tamaki, Hiroshi Yamazaki, Junichi Nakagawa, Tamotsu Shimizu | 2024-09-17 |
| 12078958 | Image forming apparatus | Hiroshi Yamazaki, Junichi Nakagawa, Tamotsu Shimizu, Kenichi Tamaki | 2024-09-03 |
| 12007712 | Image forming apparatus | Junichi Nakagawa, Tamotsu Shimizu, Hiroshi Yamazaki, Kenichi Tamaki | 2024-06-11 |
| 12001159 | Adjustment method for image forming apparatus, and image forming apparatus | Masaru Watanabe, Kanako Kikuchi, Yasuaki Sakamoto, Ayato Morikami, Yuki Nakaiwa +2 more | 2024-06-04 |
| 11977351 | Image forming apparatus | Junichi Nakagawa, Kenichi Tamaki, Hiroshi Yamazaki, Tamotsu Shimizu | 2024-05-07 |
| 11977350 | Image forming apparatus | Junichi Nakagawa, Tamotsu Shimizu, Hiroshi Yamazaki, Kenichi Tamaki | 2024-05-07 |
| 11868060 | Image forming apparatus capable of detecting deviation between exposure device and photoconductor drum | Masaru Watanabe, Kanako Kikuchi, Yasuaki Sakamoto, Ayato Morikami, Yuki Nakaiwa +2 more | 2024-01-09 |
| 11815839 | Image forming apparatus capable of adjusting image forming condition accurately, and image forming condition adjustment method | Keisuke Oba, Masaru Watanabe, Yasuaki Sakamoto, Kanako Kikuchi, Ayato Morikami +2 more | 2023-11-14 |
| 10976680 | Image forming apparatus in which AC-type biasing is adopted for charging or development | Norio Tomiie | 2021-04-13 |
| 10901339 | Image forming apparatus which suppresses image defects due to interference between a charging alternating-current frequency and a developing alternating-current frequency | Norio Tomiie | 2021-01-26 |
| 10310441 | Electrophotographic image forming apparatus, and electricity removing member used in image forming apparatus | Shingo Sakato, Nariaki Tanaka, Kiyotaka Kobayashi, Hiroka Itani, Eriko Hayashi | 2019-06-04 |
| 10082764 | Developing device, image forming apparatus, magnetic pole position correcting method | Shinji Yamane | 2018-09-25 |
| D827841 | Ultrasonic sensor | Naoki Tanaka, Masahiko Hashimoto, Takuya Iwamoto, Katsu Takeda, Kenji Sano | 2018-09-04 |
| 10042318 | Electrophotographic image forming apparatus and electricity removing member used in the same | Hiroka Itani, Nariaki Tanaka, Shingo Sakato, Kiyotaka Kobayashi, Eriko Hayashi | 2018-08-07 |
| 9063496 | Image forming apparatus including a control unit controlling bias applied to a charging member and a transfer member | Shingo Sakato | 2015-06-23 |
| 8926022 | Vehicle frame component and manufacturing method for vehicle frame component | Kazuaki Hayase | 2015-01-06 |
| 6828069 | Method for correcting defects on color filter | Shigeyasu Nakazawa | 2004-12-07 |
| 4185972 | Electric charge holding structure for electretized air-filter medium | Sukekazu Nitta, Takashi Takahira | 1980-01-29 |