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:
Nov. 07, 2006
Filed:
Sep. 21, 2005
Tadao Yamaguchi, Isesaki, JP;
Tetsushi Yashima, Isesaki, JP;
Masahiro Takagi, Isesaki, JP;
Satoru Shimosegawa, Isesaki, JP;
Kentaro Fujii, Isesaki, JP;
Tadao Yamaguchi, Isesaki, JP;
Tetsushi Yashima, Isesaki, JP;
Masahiro Takagi, Isesaki, JP;
Satoru Shimosegawa, Isesaki, JP;
Kentaro Fujii, Isesaki, JP;
Tokyo Parts Industrial Co., Ltd., Isesaki, JP;
Abstract
An axial-air-gap brushless vibration motor has an eccentric rotor R in which an axial-air-gap magnet and an arched weight are provided in a rotor yoke which is rotatably mounted on a shaft fixed to a yoke bracket. A stator base is attached to the yoke bracket which includes a magnetic portion receiving the magnetic field of the magnet and a nonmagnetic portion. One Hall sensor and a drive circuit member for receiving output of the Hall sensor are disposed so that they do not overlap on a radial plane, of the stator base which has single-phase air-core armature coils installed. A cover member is welded to the yoke bracket.