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:
Jun. 18, 1996
Filed:
Aug. 19, 1994
Applicant:
Inventor:
Kihachiro Ohta, Naka-gun, JP;
Assignee:
Nippon Corporation, Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ; H02K / ;
U.S. Cl.
CPC ...
310 / ; 310156 ;
Abstract
A spindle motor comprises a stationary member, a rotor rotatably mounted by bearing means to the stationary member for holding a recording disk, a rotor magnet mounted to the rotor, and an armature mounted to the stationary member to seat opposite to the rotor magnet. In particular, the rotor includes a shaft, a hub extending outwardly and radially of the shaft, and a flange provided circumferentially of the hub which are integrally formed from a metal plate by plastic deformation process.