Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870834 | Vapor pressure-adjusting valve and refrigeration system using same | Shinji Ogawa, Yoshiharu Kajikawa, Norimasa Baba, Toshio Ohara | 1989-10-03 |
| 4821531 | Refrigerant evaporator | Yoshiyuki Yamauchi, Toshio Ohhara, Shinji Ogawa, Haruhiko Otsuka, Toshio Takahashi +1 more | 1989-04-18 |