Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12346039 | Rotatable polygon mirror, optical deflector, scanning optical device, and image forming apparatus | Yoshihiko Tanaka, Takatoshi Tanaka, Naoki Matsushita | 2025-07-01 |
| 12285822 | Inspection system for welded portion | Ryoji Kumagai, Yusuke Matsuoka | 2025-04-29 |
| 11852988 | Image forming apparatus with improved vibration rigidity | Shoji Yamamoto, Akira Yoshimura, Shogo Nagamine, Naoki Matsushita, Yoshihiko Tanaka +4 more | 2023-12-26 |
| 11835880 | Rotatable polygon mirror, optical deflecting device, scanning optical device, and image forming apparatus | Takatoshi Tanaka | 2023-12-05 |
| 11385457 | Optical scanning device having rotating polygon mirror, and image forming apparatus including the same | Yoshihiko Tanaka, Naoki Matsushita, Takatoshi Tanaka, Mitsuhiro Ohta, Hiroki Katayama | 2022-07-12 |
| 11353805 | Image forming apparatus to address vibration rigidity of a scanner unit | Shoji Yamamoto, Akira Yoshimura, Shogo Nagamine, Naoki Matsushita, Yoshihiko Tanaka +4 more | 2022-06-07 |
| 11249303 | Rotary polygon mirror, light deflecting unit, and optical scanning apparatus including light deflecting unit | Yoshihiko Tanaka, 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, Yoshihiko Tanaka, Takatoshi Tanaka, Naoki Matsushita, Hiroki Katayama | 2021-08-10 |
| 11022908 | Image forming apparatus | Shoji Yamamoto, Akira Yoshimura, Shogo Nagamine, Naoki Matsushita, Yoshihiko Tanaka +4 more | 2021-06-01 |
| 10900524 | Sealing member, and bearing device for vehicle wheel comprising same | Makoto Seki | 2021-01-26 |
| 10773549 | Bearing device for vehicle wheel | Xiaole Bao, Yuta Nakatsuji, Akira Torii | 2020-09-15 |
| 9864934 | Optical scanning device, image forming apparatus, and correction method | Tetsuya Nishiguchi | 2018-01-09 |
| 9571688 | Optical scanning apparatus and image forming apparatus including the same | Taku Murotani, Kunihiro Niwa, Junya Azami, Tetsuya Nishiguchi | 2017-02-14 |
| 9405117 | Optical scanning apparatus and image forming apparatus including the same | Taku Murotani, Kunihiro Niwa, Junya Azami, Tetsuya Nishiguchi | 2016-08-02 |
| 8958069 | Spectral colorimetric apparatus and image forming apparatus including the same | Shin Komori, Mitsuhiro Obara | 2015-02-17 |
| 8462342 | Spectral colorimetric apparatus and image forming apparatus including the same | Shin Komori, Mitsuhiro Obara | 2013-06-11 |
| 8454258 | Swivel joint | Tomokazu Sendai, Yasushi Kamada | 2013-06-04 |
| 7508859 | Optical scanning apparatus | Junya Azami, Mitsuhiro Obara, Atsushi Sano, Kenji Shima | 2009-03-24 |
| 6928100 | Laser device and lens position adjustment method in the laser device | Wataru Sato | 2005-08-09 |
| 5161743 | Electromagnetic fuel injection valve for internal combustion engine | Hideto Takeda, Kazuyoshii Sugaya, Ryoichi Tada, Oyuki Ogawa, Satoshi Nakanishi | 1992-11-10 |
| 5156342 | Electromagnetic fuel injection valve for internal combustion engine | Hideto Takeda, Kazuyoshi Sugaya, Ryoichi Tada, Oyuki Ogawa, Satoshi Nakanishi | 1992-10-20 |
| 5080287 | Electromagnetic fuel injection valve for internal combustion engine | Hideto Takeda, Kazuyoshi Sugaya, Ryoichi Tada, Oyuki Ogawa, Satoshi Nakanishi | 1992-01-14 |
| 4869225 | Fuel supply device for vehicles | Kiyoshi Nagata, Junichi Tatsukawa, Yutaka Kawashima | 1989-09-26 |
| 4814997 | Method and apparatus for estimating an atmospheric pressure based on an intact air pressure at a certain time | Toshimi Matsumura, Norio Omori | 1989-03-21 |
| 4798522 | Joint structure for fluid supply pump and fluid supply pipe | Hideki Kaga | 1989-01-17 |