Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6827139 | Heat exchanger for exchanging heat between internal fluid and external fluid and manufacturing method thereof | Masaaki Kawakubo, Ken Muto, Ken Yamamoto, Etsuo Hasegawa, Yoshiki Katoh | 2004-12-07 |
| 6761306 | Phosphorus-copper brazing material, brazing sheet, methods of manufacturing the material and the sheet, and flow path structure for heat exchangers | Masaaki Ishio, Tsuyoshi Hasegawa, Ken Yamamoto, Kenichiro Kamon | 2004-07-13 |