Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5699675 | Heat exchanger and cooling apparatus mounted with the same | Toshitake Nagai, Yonezo Ikumi, Norio Sawada, Koji Sato, Masato Watanabe | 1997-12-23 |
| 5634352 | Refrigeration cycle using six-way change-over valve | Toshitake Nagai, Yonezo Ikumi, Norio Sawada, Koji Sato | 1997-06-03 |