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:
Jan. 09, 2007
Filed:
Nov. 17, 2004
Keiji Nakamura, Chiba, JP;
Yasuhiro Hashimoto, Chiba, JP;
Masahiro Takahashi, Hiratsuka, JP;
Shuichi Kubota, Hiratsuka, JP;
Takao Asada, Hiratsuka, JP;
Toshiya Yamamoto, Hiratsuka, JP;
Keiji Nakamura, Chiba, JP;
Yasuhiro Hashimoto, Chiba, JP;
Masahiro Takahashi, Hiratsuka, JP;
Shuichi Kubota, Hiratsuka, JP;
Takao Asada, Hiratsuka, JP;
Toshiya Yamamoto, Hiratsuka, JP;
Mabuchi Motor Co., Ltd., Matsudo, JP;
Tanaka Kikinzoku kogyo K.K., Tokyo, JP;
Abstract
The invention provides a material for sliding contacts that is suitable for a small-sized DC motor used in recent downsized CD players and is excellent in durability. A material for sliding contacts used in a commutator of a small-sized DC motor that consists essentially of 0.01 to 3.0% Ni by weight, 0.01 to 6.0% ZnO by weight and/or 0.01 to 3.0% MgO by weight, furthermore, in some cases, 0.01 to 5.0% Cu by weight, and the balance Ag, in which Ni metal particles, ZnO particles or MgO particles are dispersed in the matrix of Ag.