Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6490933 | Ultrasonic flow meter with reduced noise | Yoshiko Usui, Haitao Pan | 2002-12-10 |
| 6055868 | Ultrasonic flow meter | Yoshiko Usui, Tadashi Ikawa, Tokio Sugi | 2000-05-02 |
| 5974897 | Ultrasonic flow meter | Yoshiko Usui, Tadashi Ikawa, Tokio Sugi | 1999-11-02 |
| 4757219 | Lamination type of magnetostrictor and manufacturing method thereof | Kiyotaka Yamauchi, Yoshihito Yoshizawa | 1988-07-12 |