Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9976410 | Method for measuring underground boring position and underground boring position measuring apparatus | Toshiaki Tanaka | 2018-05-22 |
| 9540085 | Ocean exploration apparatus and ocean exploration method | Satoru Yamaguchi | 2017-01-10 |