Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5052189 | Heat pump refrigeration system for a motor vehicle | — | 1991-10-01 |
| 4944158 | Method of defrosting a refrigerating circuit for use in cooling a vehicular chamber | Yuuji Rikukawa | 1990-07-31 |