Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5696578 | Frequency tracking method and apparatus, and Doppler velocity meter using the same | Yasuhiko Ishida, Makoto Takamiya, Jun Ashiwa, Shigeki Kato, Shinji Ueda | 1997-12-09 |
| 5666444 | Image processing apparatus | Naoto Kawamura | 1997-09-09 |
| 5640239 | Optical device and displacement information measurement apparatus using the same | Makoto Takamiya | 1997-06-17 |
| 5629793 | Frequency shifter and optical displacement measurement apparatus using the same | Makoto Takamiya | 1997-05-13 |