Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7972496 | Process oil, process for production of deasphalted oil, process for production of extract, and process for production of process oil | Masashi Nakamura, Kazuhiro Teshima, Akihito Abe, Masami Takasaki | 2011-07-05 |