Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7165421 | Refrigeration system | — | 2007-01-23 |
| 6986498 | Differential pressure valve | Hisatoshi Hirota, Yuusuke Inoue | 2006-01-17 |
| 6966365 | Outflow prevention device | Hisatoshi Hirota | 2005-11-22 |
| 6957663 | Solenoid control valve | Hisatoshi Hirota, Yuusuke Inoue, Toshiyuki Shiota | 2005-10-25 |
| 6860294 | Four-way switching valve | Hisatoshi Hirota, Katsumi Koyama | 2005-03-01 |
| 6783110 | Proportional solenoid valve | Hisatoshi Hirota, Katsumi Koyama, Toshiyuki Shiota, Yuusuke Inoue | 2004-08-31 |
| 6694760 | Refrigerating cycle | Hisatoshi Hirota | 2004-02-24 |
| 6532764 | Degree of supercooling control type expansion valve | Hisatoshi Hirota, Shinji Saeki, Yuusuke Inoue, Katsumi Koyama | 2003-03-18 |
| 6390441 | Solenoid operated pilot valve | Katsumi Koyama, Shinji Saeki | 2002-05-21 |
| 6314753 | Supercooling degree-controlled expansion valve | Hisatoshi Hirota, Yusuke Inoue | 2001-11-13 |
| 6315266 | Pilot-operated flow regulating valve | Hisatoshi Hirota, Yusuke Inoue | 2001-11-13 |