Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9683195 | Viscosity index improver and lubricating oil composition | Shigekuni Nakada, Takenori Tatsumi, Hiroki Yamashita | 2017-06-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9683195 | Viscosity index improver and lubricating oil composition | Shigekuni Nakada, Takenori Tatsumi, Hiroki Yamashita | 2017-06-20 |