Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5671154 | Signal processing method and signal processing device for ultrasonic inspection apparatus | Yukinori Iizuka, Akira Murayama, Shin Nakazawa | 1997-09-23 |
| 5309765 | Method and apparatus for performing ultrasonic flaw detection by controlling peak frequency and frequency bandwidth | Hideya Tanabe, Katsuyuki Nishifuji | 1994-05-10 |
| 4727748 | Method and apparatus for detecting leaks in a gas pipe line | Takahiro Onishi, Makoto Yamagishi | 1988-03-01 |
| 4651559 | Method and apparatus for detecting leaks in a gas pipe line | Takahiro Onishi, Makoto Yamagishi | 1987-03-24 |