Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5696578 | Frequency tracking method and apparatus, and Doppler velocity meter using the same | Yasuhiko Ishida, Hidejiro Kadowaki, Makoto Takamiya, Shigeki Kato, Shinji Ueda | 1997-12-09 |