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:
Sep. 06, 2005
Filed:
Jul. 01, 2003
Yoshiharu Toshima, Yamaguchi, JP;
Takao Hayashi, Yamaguchi, JP;
Yasuhide Yamaguchi, Yamaguchi, JP;
Hiroyuki Shimamura, Tokyo, JP;
Yoshiharu Toshima, Yamaguchi, JP;
Takao Hayashi, Yamaguchi, JP;
Yasuhide Yamaguchi, Yamaguchi, JP;
Hiroyuki Shimamura, Tokyo, JP;
Mitsui Mining and Smelting Co., Ltd., Tokyo, JP;
Abstract
Nickel powder includes, on the basis of the total number of particles, not less than 10% of particles whose particle size is not less than 1.2 times the average particle size, as determined by the SEM observation; and not less than 10% of particles whose particle size is not more than 0.8 times the average particle size, as determined by the SEM observation. The nickel powder can be prepared by, for instance, precipitating nickel particles from an aqueous solution containing a nickel salt and a hydrazine reducing agent, without forming any hydroxide of nickel as an intermediate. A conductive paste containing the nickel powder can be applied onto an internal or external electrode for electronic parts.