Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5688433 | Ammonia refrigerating machine, working fluid composition and method | Keisuke Kasahara, Takashi Kaimai, Hisashi Yano | 1997-11-18 |
| 5651257 | Working fluid composition and method for lubricating ammonia refrigerating machine | Keisuke Kasahara, Takashi Kaimai, Hisashi Yano | 1997-07-29 |