The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 23, 2019
Filed:
Dec. 16, 2015
Applicant:
Senju Metal Industry Co., Ltd., Tokyo, JP;
Inventors:
Motohiro Onitsuka, Tochigi-ken, JP;
Yoko Kurasawa, Saitama-ken, JP;
Toshihisa Kugi, Tochigi-ken, JP;
Hiroshi Kawanago, Tochigi-ken, JP;
Kaichi Tsuruta, Tochigi-ken, JP;
Assignee:
Senju Metal Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 35/36 (2006.01); B23K 35/362 (2006.01); B23K 35/02 (2006.01); H05K 3/34 (2006.01);
U.S. Cl.
CPC ...
B23K 35/3612 (2013.01); B23K 35/0227 (2013.01); B23K 35/0261 (2013.01); B23K 35/0266 (2013.01); B23K 35/362 (2013.01); B23K 35/3613 (2013.01); H05K 3/3478 (2013.01); H05K 3/3489 (2013.01); H05K 2203/0405 (2013.01);
Abstract
A flux for a resin flux cored solder contains 30% or more by mass but 80% or less by mass rosin ester and 5% or more by mass but 15% or less by mass activator. The total content ratio of base materials including the rosin ester is preferably equal to or more than 85% by mass but equal to or less than 95% by mass.