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:
Apr. 03, 2001
Filed:
Nov. 12, 1997
Applicant:
Inventors:
Eiji Yabuki, Kawasaki, JP;
Tadashi Sato, Kawasaki, JP;
Assignee:
Fujitsu Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 2/500 ;
U.S. Cl.
CPC ...
G11B 2/500 ;
Abstract
An apparatus for suppressing warping of a rotating optical disk including a disk warp suppressing member facing a surface of the upturned side of the optical disk in a manner to be in sliding contact with the optical disk, and an elastic member for supporting the disk warp suppressing member and forcing it toward the optical disk. The apparatus also has a carriage which faces a rotation region of the optical disk so as to move freely in the radial direction of the optical disk, and is provided with light beam irradiating means, with the elastic member being fitted to the carriage.