Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6179084 | Underground acoustic wave transmitter, receiver, transmitting/receiving method, and underground exploration using this | Tokuo Yamamoto | 2001-01-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6179084 | Underground acoustic wave transmitter, receiver, transmitting/receiving method, and underground exploration using this | Tokuo Yamamoto | 2001-01-30 |