Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12168756 | Viscosity index improver composition and lubricating oil composition | Nobuhiro Naito, Hiroki Yamashita, Kenyuu Yoshida | 2024-12-17 |
| 11008528 | Viscosity index improver and lubricating oil composition | Hiroki Hashimoto, Ayumu Sakaguchi | 2021-05-18 |