Inventor
UMEHARA TAKAHUMI
JP4 patents
Patents
4 patentsUS6467170B2Oct 22, 2002
Tube for heat exchangers and method of manufacturing same
ZEXEL CORP26 citations91
US6357520B1Mar 19, 2002
Heat exchanger
ZEXEL CORP30 citations91
US5979051ANov 9, 1999
Heat exchanger and method of producing the same
ZEXEL CORP22 citations91
US6799630B1Oct 5, 2004
Tube for heat exchangers and method of manufacturing the same
ZEXEL CORP17 citations82