Issued Patents All Time
Showing 1–25 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12346039 | Rotatable polygon mirror, optical deflector, scanning optical device, and image forming apparatus | Hisanori Kobayashi, Takatoshi Tanaka, Naoki Matsushita | 2025-07-01 |
| 12304224 | Image forming apparatus | Mitsuhiro Ohta, Takatoshi Tanaka, Fumihiko Yamaya, Naoki Matsushita, Hiroki Katayama | 2025-05-20 |
| RE50141 | Image-forming apparatus | Takashi Kawana, Kazuyuki Ishihara, Yuuji Takayama, Hikaru Uchidate, Hiroyuki Fukuhara +1 more | 2024-09-24 |
| 11852988 | Image forming apparatus with improved vibration rigidity | Shoji Yamamoto, Akira Yoshimura, Shogo Nagamine, Naoki Matsushita, Hisanori Kobayashi +4 more | 2023-12-26 |
| 11820158 | Image forming apparatus | Mitsuhiro Ohta, Takatoshi Tanaka, Fumihiko Yamaya, Naoki Matsushita, Hiroki Katayama | 2023-11-21 |
| 11714372 | Image forming apparatus | Takatoshi Tanaka, Naoki Matsushita | 2023-08-01 |
| 11703776 | Light deflector, light scanning apparatus and image forming apparatus | Takatoshi Tanaka, Naoki Matsushita | 2023-07-18 |
| 11385457 | Optical scanning device having rotating polygon mirror, and image forming apparatus including the same | Hisanori Kobayashi, Naoki Matsushita, Takatoshi Tanaka, Mitsuhiro Ohta, Hiroki Katayama | 2022-07-12 |
| 11383413 | Manufacturing method of polygonal mirror, polygonal mirror, deflector, optical scanning apparatus and image forming apparatus | Fumihiko Yamaya, Hiroki Katayama, 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, Takatoshi Tanaka, Fumihiko Yamaya, Mitsuhiro Ohta +1 more | 2022-06-21 |
| 11353805 | Image forming apparatus to address vibration rigidity of a scanner unit | Shoji Yamamoto, Akira Yoshimura, Shogo Nagamine, Naoki Matsushita, Hisanori Kobayashi +4 more | 2022-06-07 |
| 11249303 | Rotary polygon mirror, light deflecting unit, and optical scanning apparatus including light deflecting unit | Hisanori Kobayashi, Naoki Matsushita, Takatoshi Tanaka, Mitsuhiro Ohta, Hiroki Katayama | 2022-02-15 |
| 11086248 | Image forming apparatus with fan configured for dust-resistant cooling of optical scanning unit | Mitsuhiro Ohta, Hisanori Kobayashi, Takatoshi Tanaka, Naoki Matsushita, Hiroki Katayama | 2021-08-10 |
| 11022908 | Image forming apparatus | Shoji Yamamoto, Akira Yoshimura, Shogo Nagamine, Naoki Matsushita, Hisanori Kobayashi +4 more | 2021-06-01 |
| 10976541 | Scanning optical device and image forming apparatus | Naoki Matsushita, Fumihiko Yamaya | 2021-04-13 |
| 10551764 | Optical scanning apparatus and image forming apparatus | — | 2020-02-04 |
| 10197942 | Image-forming apparatus | Takashi Kawana, Kazuyuki Ishihara, Yuuji Takayama, Hikaru Uchidate, Hiroyuki Fukuhara +1 more | 2019-02-05 |
| 10007208 | Image-forming apparatus for correcting a brightness of a laser light | Takashi Kawana, Kazuyuki Ishihara, Yuuji Takayama, Hikaru Uchidate, Hiroyuki Fukuhara +1 more | 2018-06-26 |
| 9857721 | Light source device, optical scanning apparatus and image forming apparatus | Fumihiko Yamaya | 2018-01-02 |
| 9854120 | Optical scanning device and image forming apparatus | Jun Nagatoshi, Tetsuya Nishiguchi | 2017-12-26 |
| 9696651 | Image-forming apparatus | Takashi Kawana, Kazuyuki Ishihara, Yuuji Takayama, Hikaru Uchidate, Hiroyuki Fukuhara +1 more | 2017-07-04 |
| 9581929 | Optical scanning apparatus, image forming apparatus, and support member for an optical scanning apparatus | Jun Nagatoshi, Hiroyuki Fukuhara, Naoki Matsushita | 2017-02-28 |
| 9523851 | Light deflection unit, optical scanning apparatus, and image forming apparatus | Akira Nakamura, Hiroyuki Fukuhara | 2016-12-20 |
| 9319553 | Image-forming apparatus | Takashi Kawana, Kazuyuki Ishihara, Yuuji Takayama, Hikaru Uchidate, Hiroyuki Fukuhara +1 more | 2016-04-19 |
| 9128291 | Optical scanning apparatus, image forming apparatus, and support member for an optical scanning apparatus | Jun Nagatoshi, Hiroyuki Fukuhara, Naoki Matsushita | 2015-09-08 |