Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10626822 | Valve operating system for multicylinder engine | Takeya Harada, Kiyohiko Masago, Masaru Kawano, Naoya Ashita, Koji Katsumata +2 more | 2020-04-21 |
| 10557974 | Optical element, optical apparatus, and method for forming random uneven shape | — | 2020-02-11 |
| 10317589 | Optical low-pass filter and image pickup apparatus | Kazuhiko Momoki, Yutaka Yamaguchi | 2019-06-11 |
| 9910198 | Optical filter and optical apparatus | — | 2018-03-06 |
| 9891358 | Optical filter and optical apparatus | — | 2018-02-13 |
| 6851311 | Thermal-type flow meter with bypass passage | Keiichi Nakada, Izumi Watanabe, Junichi Horie | 2005-02-08 |