Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12304224 | Image forming apparatus | Yoshihiko Tanaka, Mitsuhiro Ohta, Takatoshi Tanaka, Naoki Matsushita, Hiroki Katayama | 2025-05-20 |
| 12135513 | Toner conveying apparatus having toner conveying paths and image forming apparatus | Tsukasa Abe, Mitsuyoshi Arakawa, Takashi Kuwata, Shinichi Ueda | 2024-11-05 |
| 11820158 | Image forming apparatus | Yoshihiko Tanaka, Mitsuhiro Ohta, Takatoshi Tanaka, Naoki Matsushita, Hiroki Katayama | 2023-11-21 |
| 11782361 | Toner conveying apparatus having orthogonal toner conveying paths and image forming apparatus | Tsukasa Abe, Mitsuyoshi Arakawa, Takashi Kuwata, Shinichi Ueda | 2023-10-10 |
| 11383413 | Manufacturing method of polygonal mirror, polygonal mirror, deflector, optical scanning apparatus and image forming apparatus | Hiroki Katayama, Yoshihiko Tanaka, Takatoshi Tanaka, Mitsuhiro Ohta, Atsushi Takata +1 more | 2022-07-12 |
| 11366310 | Polygonal mirror, deflector, optical scanning apparatus and image forming apparatus | Naoki Matsushita, Atsushi Takata, Yoshihiko Tanaka, Takatoshi Tanaka, Mitsuhiro Ohta +1 more | 2022-06-21 |
| 11300901 | Toner conveying apparatus having orthogonal toner conveying paths and image forming apparatus | Tsukasa Abe, Mitsuyoshi Arakawa, Takashi Kuwata, Shinichi Ueda | 2022-04-12 |
| 10976541 | Scanning optical device and image forming apparatus | Naoki Matsushita, Yoshihiko Tanaka | 2021-04-13 |
| 10656552 | Light deflector, optical scanning device, and image forming apparatus | Daisuke Takamura | 2020-05-19 |
| 9971273 | Image forming apparatus | — | 2018-05-15 |
| 9857721 | Light source device, optical scanning apparatus and image forming apparatus | Yoshihiko Tanaka | 2018-01-02 |