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. 22, 1992
Filed:
Jul. 09, 1990
Applicant:
Inventor:
Ko Yoneda, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360109 ; 360 84 ; 360107 ;
Abstract
A magnetic recording and/or reproducing apparatus having a magnetic head which is movable relative to a magnetic recording medium to record or reproduce information. The magnetic head is moved in a direction to approach the magnetic recording medium or in the reverse direction to that direction to periodically alter the amount of projection of the magnetic head toward the magnetic recording medium in synchronism with a cycle of relative movement of the magnetic head to the magnetic recording medium.