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. 31, 1995
Filed:
Nov. 30, 1993
Applicant:
Inventor:
Hiroshi Koriyama, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360106 ; 360 9801 ;
Abstract
The magnetic disk unit has a cylindrical sleeve disposed between a plurality of bearings and an arm holder for magnetic heads rotatably supported by a head rotating shaft disposed in parallel with a disk rotating shaft for magnetic disks via the bearings. This sleeve forms a gap with the inner periphery of the arm holder to absorb a difference of thermal distortion in the radial direction of the arm holder and the bearings. Thus, thermal offtrack characteristics can be improved significantly.