Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5607575 | Process for removing iron impurities from petroleum oil distillation residues | Toru Morita, Yuichiro Fujiyama, Masaru Ushio | 1997-03-04 |
| 5543041 | Supply system of petroleum heavy oil containing magnetic fine particles | Hajime Okazaki, Manabu Kazato, Masaoki Ouchi, Haruki Nagano, Masaru Ushio | 1996-08-06 |
| 5403471 | Process for hydrogenatively treating petroleum distillation residual oils | Masaru Ushio, Toru Morita | 1995-04-04 |
| 4766208 | Method of performing an oxidation reaction | Kiyomitsu Kunugiza | 1988-08-23 |
| 4751335 | Process for preparing a fluid for traction drive | Junichi Kubo, Kenji Suzuki, Eiji Akiyama, Masao Nambu | 1988-06-14 |