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:
Dec. 18, 2012
Filed:
Mar. 29, 2010
Hitoshi Takaki, Kyoto, JP;
Tatsuya Tatara, Kyoto, JP;
Hiroaki Inamori, Kyoto, JP;
Nidec Corporation, Kyoto, JP;
Abstract
A storage disk drive motorincludes a stator unit, a rotor unit, a shaftarranged in a coaxial relationship with a center axis, a sleeve unitincluding a flange portion, and a base member, having a through-hole, fixed to the sleeve unitby caulking. The flange portionincludes a flange lower surfacemaking contact with an upper surfaceof the base memberand a jutprotruding downwards from a radial inner side of the flange lower surface. The jutincludes a first outer circumferential surfaceopposed to the inner circumferential surfaceof the base member, a second outer circumferential surfacepositioned below the first outer circumferential surface, and a grooveradially inwardly indented from the first outer circumferential surfaceand the second outer circumferential surface