Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869074 | Regenerative refrigeration cycle apparatus and control method therefor | Takao Hoshi | 1989-09-26 |
| 4833893 | Refrigerating system incorporating a heat accumulator and method of operating the same | — | 1989-05-30 |
| 4798059 | Air conditioner with heat regeneration cycle | — | 1989-01-17 |