Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4348288 | Process for desalting fuel oil | Shoji Yoshinaga, Hirosige Kawano, Matsuzo Todo, Tosihiko Takahasi, Yukio Inoue | 1982-09-07 |
| 4339330 | Desalting method of fuel oil | Katsuaki Nagatomo, Fumio Shibata, Shoji Nomura, Shoji Yoshinaga | 1982-07-13 |
| 4326666 | Centrifugal type counterflow contact apparatus | Katsuaki Nagatomo, Shoji Yoshinaga, Zensuke Tamura, Fumio Shibata, Hiroshi Kanekiyo | 1982-04-27 |
| 4272011 | Centrifugal counterflow type contactor | Katsuaki Nagatomo, Shigenobu Hisatomi, Hiromasa Fukumori, Shoji Yoshinaga, Kyozo Yoshioka | 1981-06-09 |
| 4225079 | Liquid-liquid centrifugal extractor | Shoji Yoshinaga, Hirosige Kawano, Matsuzo Todo | 1980-09-30 |