Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6212942 | Leakage inspection method and apparatus | Hideaki Hara | 2001-04-10 |
| 5931075 | Method and apparatus for cutting flat tube | Yoshimitsu Yamaguchi, Noriaki Hashimoto | 1999-08-03 |
| 5819575 | Manufacturing apparatus of a corrugated fin and method of manufacturing the same | Hisashi Kobayashi, Tetuo Ohno, Takashi Kono | 1998-10-13 |