Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4760709 | Five-way valve having simultaneous defrosting and heating functions | Tadashi Aoki, Tadatoshi Ashikaga, Hiroshi Kuno, Hideaki Ohhira | 1988-08-02 |
| 4644760 | Reversible four-way valve for reversible refrigerating cycle | Tadashi Aoki, Hiroshi Kuno | 1987-02-24 |