Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5419814 | Thin layer liquid film type evaporator | Takao Katayama, Shinichi Ariga, Mitsuo Tanuma | 1995-05-30 |
| 4521296 | Process for the production of refrigerator oil | Koji Tsuchiya | 1985-06-04 |