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:
Jul. 17, 2007
Filed:
Nov. 28, 2002
Applicant:
Kensuke Matsuki, Chiba, JP;
Inventor:
Kensuke Matsuki, Chiba, JP;
Assignee:
Kawatetsu Mining Co., Ltd, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F 1/00 (2006.01); H01B 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A copper alloy powder for an electrically conductive paste is provided, which is characterized in that the copper alloy powder comprises 80 to 99.9 mass % of Cu and 0.1 to 20 mass % of one or two elements selected from the group consisting of Ta and W and has an average particle size of 0.1 to 1 μm. This copper alloy powder has a higher starting temperature for sintering, higher oxidation resistance and better heat resistance than a copper powder.