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:
Feb. 18, 2014
Filed:
Sep. 25, 2009
Applicants:
Tetsuro Nishimura, Osaka, JP;
Mitsuhiro Kawahara, Osaka, JP;
Masuml Asakawa, Ibaraki, JP;
Toshimi Shimizu, Ibaraki, JP;
Inventors:
Tetsuro Nishimura, Osaka, JP;
Mitsuhiro Kawahara, Osaka, JP;
Masuml Asakawa, Ibaraki, JP;
Toshimi Shimizu, Ibaraki, JP;
Assignee:
Nihon Superior Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 35/36 (2006.01); B23K 35/363 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed herein are a flux and a soldering paste based on the flux. The flux is free from a change in viscosity with age, 'skinned surface,' and 'rough and crumbling,' and is excellent in printability and solderability. The flux contains, as elements, a resin, a thixo agent, an activator, a solvent and glucopyranosylamine type nanotube. The soldering paste further contains a solder powder. Preferably, the solder powder is free from lead.