Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11795413 | Viscosity index improver and lubricant compositions thereof | Tomohiro Matsuda, Yasuo Arai | 2023-10-24 |
| 11639481 | Lubricant additive composition | Yasuo Arai, Tomohiro Matsuda, Nobuhiro Kishida | 2023-05-02 |