Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6296194 | Expansion valve | Hisatoshi Hirota, Shinji Saeki, Isao Sendo, Toshiyuki Shiota, Takashi Kobayashi | 2001-10-02 |
| 4591677 | Three-function pressure switch | Hisatoshi Hirota, Toyoyuki Hara | 1986-05-27 |