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:
Aug. 09, 2005
Filed:
Jun. 26, 2003
Applicants:
Masashi Okubo, Maruko-machi, JP;
Morinobu Endo, Suzaka, JP;
Inventors:
Masashi Okubo, Maruko-machi, JP;
Morinobu Endo, Suzaka, JP;
Assignee:
Shinano Kenshi Kabushiki Kaisha, Nagano, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01R039/04 ;
U.S. Cl.
CPC ...
Abstract
The commutator is capable of reducing contact resistance between the brush and a commutator, improving efficiency of an electric rotary device and restricting exhaustion of the commutator. The commutator comprises: a plurality of commutating pieces having outer faces; and a plurality of sliding members fixed on the outer faces of the commutating pieces, the sliding members including carbon nano fibers or carbon nano tubes whose outermost layers have electric conductivity.