Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8758595 | Process oil, process for production of deasphalted oil, process for production of extract, and process for production of process oil | Meishi Tanaka, Masashi Nakamura, Kazuhiro Teshima, Masami Takasaki | 2014-06-24 |
| 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, Kazuhiro Teshima, Masami Takasaki | 2011-07-05 |