Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6708570 | Flow rate measurement method, ultrasonic flow rate meter, flow velocity measurement method, temperature or pressure measurement method, ultrasonic thermometer and ultrasonic pressure gage | Keiichi Matsushima, Michio Ohkawa | 2004-03-23 |
| 6675111 | Method and apparatus for measuring flow velocity and method and apparatus for measuring flow rate | Keiichi Matsushima | 2004-01-06 |