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. 08, 2006
Filed:
Nov. 10, 2003
Applicants:
Tadao Yamaguchi, Isesaki, JP;
Naohisa Koyanagi, Isesaki, JP;
Tetsushi Yashima, Isesaki, JP;
Inventors:
Assignee:
Tokyo Parts Industrial Co., Ltd., Isesaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 7/075 (2006.01);
U.S. Cl.
CPC ...
Abstract
A vibration motor has an eccentric rotor having a plurality of armature coils with at least one winding-type air core armature coil disposed in an eccentric manner on a printed wiring board. A commutator is disposed on the printed wiring board. An eccentric weight is disposed so as not to overlap with at least one winding-type air-core armature coil and at least two of the air-core armature coils overlap. A magnet imparts a magnet field to the eccentric rotor via an axial air gap, a brush that imparts electric power to the air-core armature coils via the commutator.