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:
May. 26, 1992
Filed:
May. 15, 1990
Applicant:
Inventors:
Tatsutoshi Nagasaki, Kawasaki, JP;
Takashi Miyashita, Kawasaki, JP;
Akihiko Yanagisawa, Kawasaki, JP;
Assignee:
Fuji Electric Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
360 71 ; 360 75 ; 360 69 ;
Abstract
A disc storage unit includes a processor for checking whether or not rotation of a disc occurs, head actuator for slightly displacing the head by a predetermined minute amount. At first, the disc is started and then the processor detects presence or absence of rotation of the disc, and the head is displaced slightly in a state in which driving force is applied to the disc by the head actuator.