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:
Oct. 06, 2009
Filed:
Jun. 22, 2006
Tadao Yamaguchi, Isesaki, JP;
Tadao Yamaguchi, Isesaki, JP;
Tokyo Parts Industrial Co., Ltd., Gunma-Ken, JP;
Abstract
A stator has a stator base including a printed circuit board provided on a nonmagnetic or weakly magnetic bracket having a shaft support section disposed in the center thereof, a single-phase connected air-cored armature coil provided on the stator base, and a drive circuit member provided on the stator base so as not to overlap the air-cored armature coil. The stator base has a groove hole extending outwardly from a central through hole. A detent torque section extending radially from the center of a detent torque generating member composed of a magnetic body and provided around the shaft support section is accommodated in the groove hole so as to be confined in the stator base in the thickness direction thereof.