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. 11, 2001
Filed:
Sep. 29, 1998
Applicant:
Inventors:
Hirokazu Ishizaki, Kawasaki, JP;
Shinji Tsukada, Yamagata, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 1/920 ;
U.S. Cl.
CPC ...
G11B 1/920 ;
Abstract
The spindle motor comprises a stationary axis fixed to a housing of a recording disk apparatus, and a hub body supported around the stationary axis by upper and lower ball bearings for rotation. A member serves to at least partly surround the hub body around the upper and lower ball bearings. Thermal expansion of the hub body may be suppressed by the member having a thermal expansion coefficient smaller than that of the hub body.
Ishizaki, Hirokazu. (2001). Spindle motor having temperature compensation member encircling hub body around bearing (U.S. Patent No. 6330126). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6330126
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile