Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5031460 | Transducer for detecting pressure changes in pipes | Kazuhisa Matsumoto | 1991-07-16 |
| 4807479 | Transducer for detecting pressure changes in pipes | Junichi Sako | 1989-02-28 |