Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8071515 | Lubricating oil composition | Hideki Kamano | 2011-12-06 |
| 7972496 | Process oil, process for production of deasphalted oil, process for production of extract, and process for production of process oil | Meishi Tanaka, Masashi Nakamura, Akihito Abe, Masami Takasaki | 2011-07-05 |
| 7960318 | Lubricating oil composition for internal combustion engine | Hideki Kamano, Motoharu Ishikawa | 2011-06-14 |