Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4894533 | Optical rotary encoder | Hiraku Abe, Yoshihiro Takahashi | 1990-01-16 |
| 4806751 | Code wheel for a reflective type optical rotary encoder | Hiraku Abe, Yoshihiro Takahashi | 1989-02-21 |
| 4727356 | Optical rotary encoder | Hiraku Abe, Yoshihiro Takahashi | 1988-02-23 |
| 4725723 | Optical rotary encoder with light monitoring and control | — | 1988-02-16 |
| 4705348 | Optical switch | Hiroshi Matsunaga, Ichiro Tokunaga, Kosei Obata | 1987-11-10 |
| 4684210 | Light transmission device | Hiroshi Matsunaga, Ichiro Tokunaga, Kosei Obata | 1987-08-04 |
| 4650995 | Reflection type optical rotary encoder | Ichiro Tokunaga | 1987-03-17 |
| 4634862 | Method of fabricating rotor of optical rotary encoder | Hiroshi Matsunaga, Ichiro Tokunaga | 1987-01-06 |
| 4617460 | Optical fiber sensor having shaped ends | Ichiro Tokunaga, Hiroshi Matsunaga | 1986-10-14 |
| 4606223 | Device for detecting rotating speed of thin shape motor | Hiroshi Matsunaga, Ichiro Tokunaga, Kosei Obata, Yukihiko Yasuhara | 1986-08-19 |
| 4580871 | Rotary encoder | Hiroshi Matsunaga, Ichiro Tokunaga, Kosei Obata | 1986-04-08 |
| 4580130 | Rotary encoder | Ichiro Tokunaga, Hiroshi Matsunaga | 1986-04-01 |