Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6227289 | Finned heat exchanger | Shoichi Yokoyama | 2001-05-08 |
| 6142220 | Finned heat exchanger | Shoichi Yokoyama, Osamu Aoyagi | 2000-11-07 |
| 6082132 | Apparatus having refrigeration cycle | Hironao Numoto, Kiyoshi Sawai | 2000-07-04 |
| 6000466 | Heat exchanger tube for an air-conditioning apparatus | Osamu Aoyagi, Shoichi Yokoyama | 1999-12-14 |
| 5207270 | Fin-tube heat exchanger | Shoichi Yokoyama, Osamu Aoyagi, Toshiaki Andoh | 1993-05-04 |
| 5203403 | Fin-tube heat exchanger | Shoichi Yokoyama, Toshiaki Andoh | 1993-04-20 |