Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5696578 | Frequency tracking method and apparatus, and Doppler velocity meter using the same | Hidejiro Kadowaki, Makoto Takamiya, Jun Ashiwa, Shigeki Kato, Shinji Ueda | 1997-12-09 |
| 5603828 | Filter screen changer for resin extruder | Tomomi Kato | 1997-02-18 |