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:
Jan. 07, 2003
Filed:
Nov. 12, 1997
Applicant:
Inventors:
Yuzuru Suzuki, Shizuoka-ken, JP;
Taketoshi Ohyashiki, Shizuoka-ken, JP;
Naoyuki Harada, Shizouka-ken, JP;
Assignee:
Minebea Co. Ltd., Nagano, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 2/300 ; G11B 2/500 ;
U.S. Cl.
CPC ...
G11B 2/300 ; G11B 2/500 ;
Abstract
In a rotor structure of a spindle motor, an underside of a turntable and a top surface of a rotary yoke are integrated with each other by insert molding to eliminate an air gap therebetween in prior arts to thereby allow a stator assembly within the rotary yoke to increase its thickness and also enhance the rigidity of the integrated components while dimensions of the motor remaining unchanged, moreover, simultaneous integration with any components of a rotary shaft, a chucking magnet and a rotary magnet being advantageous in reduction of the assembling steps.