Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6467288 | Heat-pump water heater | Hisayoshi Sakakibara, Tomoaki Kobayakawa, Kazutoshi Kusakari, Michiyuki Saikawa | 2002-10-22 |
| 6467289 | Hot-water supply system with heat pump cycle | Hisayoshi Sakakibara, Tomohisa Yoshimi, Tomoaki Kobayakawa, Kazutoshi Kusakari, Michiyuki Saikawa | 2002-10-22 |
| 6430949 | Heat-pump water heater | Shinya Noro, Hisayoshi Sakakibara, Tomoaki Kobayakawa, Kazutoshi Kusakari, Michiyuki Saikawa | 2002-08-13 |
| 6418737 | Heat pump type hot-water supply system capable of performing defrosting operation | Hisayoshi Sakakibara, Masahiko Ito, Tomoaki Kobayakawa, Kazutoshi Kusakari, Michiyuki Saikawa | 2002-07-16 |