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:
Dec. 24, 1991
Filed:
Nov. 23, 1990
Applicant:
Inventors:
Masaki Sanji, Oobu, JP;
Toshihiko Taguchi, Saitama, JP;
Tomohiko Iino, Mouka, JP;
Kouichi Ootuka, Tokyo, JP;
Assignees:
Nippondenso Co., Ltd., Aichi, JP;
Senju Metal Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
148 23 ; 148 24 ; 148 25 ;
Abstract
A water-soluble soldering flux having good solderability, removability with water, and insulation resistance comprises, as activators, a combination of tartaric acid and a hydrohalide salt of mono-, di-, or tri-ethanolamine.