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. 10, 2018
Filed:
Oct. 02, 2013
Applicant:
Sumitomo Metal Mining Co., Ltd., Tokyo, JP;
Inventors:
Yuji Kawakami, Ehime, JP;
Akihiro Murakami, Ehime, JP;
Toshiaki Terao, Ehime, JP;
Isao Kaneko, Ehime, JP;
Assignee:
SUMITOMO METAL MINING CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F 1/00 (2006.01); C22C 5/06 (2006.01); H01B 5/00 (2006.01); H05K 1/09 (2006.01); H01B 1/02 (2006.01); H01B 1/22 (2006.01); B22F 9/24 (2006.01);
U.S. Cl.
CPC ...
B22F 1/0003 (2013.01); B22F 1/0011 (2013.01); B22F 1/0096 (2013.01); B22F 9/24 (2013.01); C22C 5/06 (2013.01); H01B 1/02 (2013.01); H01B 1/22 (2013.01); H01B 5/00 (2013.01); H05K 1/09 (2013.01); H05K 1/092 (2013.01); B22F 2998/10 (2013.01); H05K 2201/02 (2013.01); H05K 2201/032 (2013.01);
Abstract
The present invention provides a silver powder that has an appropriate viscosity range at the time of paste production, can be easily kneaded, and prevents flake occurrence. The silver powder has a dibutyl phthalate absorption amount, measured by a method of JIS-K6217-4, of 7.0 to 9.5 ml/100 g, and has an oil absorption profile at the time of measurement of the absorption amount, having two peaks, or one peak having a half width of not more than 1.5 ml/100 g.