Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11113369 | Information processing apparatus, authentication system, and method of deleting card information | — | 2021-09-07 |
| 11046880 | Additive for oil well cement and cement slurry using said additive for oil well cement | Kosuke Watanabe | 2021-06-29 |
| 10995252 | Vinyl alcohol polymer and cement slurry comprising same | Kosuke Watanabe | 2021-05-04 |