Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6735969 | Gas heat pump type air conditioning device, engine-coolant-water heating device, and operating method for gas heat pump type air conditioning device | Tsukasa Kasagi, Hiraku Kunita, Kazuo Yamagishi | 2004-05-18 |