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. 11, 2012
Filed:
Apr. 27, 2010
Keiji Nakamura, Chiba, JP;
Makoto Takabatake, Chiba, JP;
Hideyuki Uzawa, Chiba, JP;
Masahiro Takahashi, Gunma, JP;
Yoshinori Horiuchi, Gunma, JP;
Takao Asada, Iwate, JP;
Osamu Sakaguchi, Gunma, JP;
Keiji Nakamura, Chiba, JP;
Makoto Takabatake, Chiba, JP;
Hideyuki Uzawa, Chiba, JP;
Masahiro Takahashi, Gunma, JP;
Yoshinori Horiuchi, Gunma, JP;
Takao Asada, Iwate, JP;
Osamu Sakaguchi, Gunma, JP;
Mabuchi Motor Co., Ltd., Chiba, JP;
Tanaka Kikinzoku Kogyo K.K., Tokyo, JP;
Abstract
[Problem to be Solved] There is provided a highly wear-resistant and durable sliding contact material applicable to a commutator of a motor used for high-capacity applications in which the initial starting current (IS) is 1 ampere or higher. [Solution] The present invention provides a sliding contact material in which metal oxide particles are dispersed in an Ag alloy matrix, wherein the Ag alloy matrix is an Ag alloy containing 0.01 to 10.0 wt % of at least one kind of Fe, Co, Ni and Cu in Ag, and 0.1 to 3.0 wt % of a Ta oxide is dispersed as the metal oxide. In the present invention, 0.1 to 10.0 wt % of metal oxide particles of one kind or two or more kinds of Mg, Fe, Co, Ni and Zn may further be dispersed. The sliding contact material is used in a mode of clad composite material formed by embedding the sliding contact material in a part of a base material consisting of Cu or Cu alloy.