Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8030255 | Lubricating oil composition | Hitoshi Komatsubara | 2011-10-04 |
| 8026199 | Lubricating oil composition | Koji Hoshino, Shigeki Takeshima | 2011-09-27 |
| 7871966 | Lubricating oil composition | — | 2011-01-18 |
| 7867957 | Lubricating oil composition | Kazuo Tagawa | 2011-01-11 |