Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10072497 | Downhole acoustic wave sensing with optical fiber | — | 2018-09-11 |
| 9927286 | Seismic sensing with optical fiber | Masafumi Fukuhara | 2018-03-27 |
| 9869788 | Seismic detector | Ryo Imai, Takashi Yoshikawa | 2018-01-16 |