Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11680221 | Lubricating oil composition for internal combustion engine | Koji Hoshino | 2023-06-20 |
| 11649413 | Lubricating oil composition for internal combustion engine | Koji Hoshino | 2023-05-16 |