Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10486128 | Heat-expandable microspheres and application thereof | Yoshitsugu Sasaki | 2019-11-26 |
| 10175262 | Doppler shift frequency measuring device, log speed meter and tidal current meter | — | 2019-01-08 |