Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5728655 | Refrigerating machine oil composition for use with HCFC and HFC refrigerants | Masayoshi Muraki, Shozaburo Konishi, Takayoshi Hamada, Nobuo Murata, Norimasa Nishiura | 1998-03-17 |
| 5653909 | Refrigerating machine oil composition for use with HFC refrigerant | Masayoshi Muraki, Shozaburo Konishi, Susumu Kawaguchi, Noboru Masuda, Sou Suzuki | 1997-08-05 |
| 5342533 | Refrigerator oil composition | Yasuo Kondo, Kazuo Tagawa | 1994-08-30 |