Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6342152 | Hydrogenation treatment process for crude oil and crude oil reformed thereby | — | 2002-01-29 |
| 6328880 | Process for hydrotreating hydrocarbon oil | Nobuyuki Ohta, Ryuichiro Iwamoto, Takao Nozaki, Satoshi Matsuda, Toshihisa Konishi | 2001-12-11 |
| 5382349 | Method of treatment of heavy hydrocarbon oil | Kenichi Ii, Kazuhiro Kashima, Eiichiro Kanda, Takanori Ohno, Naotake Takeuchi | 1995-01-17 |