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. 06, 2004
Filed:
Dec. 19, 2002
Applicant:
Inventor:
Tadao Yamaguchi, Gunma-ken, JP;
Assignee:
Tokyo Parts Industrial Co., Ltd., Gunma-ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 4/728 ;
U.S. Cl.
CPC ...
H02K 4/728 ;
Abstract
A compact flat type vibrator motor is provided in which movement of the center is secured in the commutator itself, an additional eccentric member does not need to be provided, and the number of parts are reduced, so that mass production thereof is possible. The commutator pieces are formed in a commutator base member including a printed wiring board to which a high density resin of a specific gravity of 3 or more is added. Simultaneously, a shaft receiving portion is formed at the central portion of the commutator base member. At least a high density resin portion is made eccentric so that an eccentric rotor is formed.