Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10865360 | Lubricating oil composition for engine equipped with supercharging mechanism, method for suppressing low-speed pre-ignition in engine equipped with supercharging mechanism using lubricating oil composition, and method for manufacturing lubricating oil composition | Toshimasa Utaka, Akira Iijima | 2020-12-15 |
| 10781395 | Lubricant composition for gasoline engine and method for producing same | — | 2020-09-22 |
| 10584302 | Lubricating oil composition and method for manufacturing said lubricating oil composition | — | 2020-03-10 |