Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5174490 | Brazing method | Naoyoshi Sutoh, Hisao Aoki | 1992-12-29 |
| 4749627 | Brazing sheet and heat exchanger using same | Kazunori Ishikawa, Hiroshi Kawase, Tooru Yamaguchi, Toshio Aoki | 1988-06-07 |
| 4678112 | Method for producing a heat exchanger having a flat tube and header pipes | Hisao Aoki | 1987-07-07 |
| 4676304 | Serpentine-type heat exchanger having fin plates with louvers | Hisao Aoki | 1987-06-30 |
| 4620590 | Aluminum heat exchanger | Hisao Aoki | 1986-11-04 |
| 4587701 | Method for producing an aluminum heat exchanger | Hisao Aoki | 1986-05-13 |