Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6265708 | Method and apparatus for controlling photointensity and/or luminous flux density of a signal light | Norio Tanaka, Shigeru Takarada, Hiromitsu Yanagimoto, Ichiro Ueno | 2001-07-24 |
| 5006703 | Reflective optical rotary encoder disc | Juichi Shikunami, Makoto Itonaga, Kanji Kayanuma, Nobuaki Nakamura | 1991-04-09 |
| 4929822 | Detection system with an optical encoder to optically detect displacement amount of a movable device | Nobuaki Nakamura, Yukimi Hirose, Makoto Itonaga | 1990-05-29 |