Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4505123 | Absorption heat pump system | Hideo Ishiko, Takeshi Okumura, Masashi Izumi, Masahiro Furukawa | 1985-03-19 |
| 4307577 | Air conditioning system making use of waste heat | Hideyuki Watanabe, Tadao Shimada, Yonezo Ikumi, Atsuo Fukino | 1981-12-29 |