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:
Aug. 27, 1991
Filed:
Jun. 08, 1990
Teac Corporation, , JP;
Abstract
A magnetic head assembly comprises a base defined with a flat slide surface on which a magnetic disk is contacted and a magnetic core embedded on the base surface so as to form a flush surface on the slide surface. The slide surface extends in a direction of rotation of the magnetic disk for a length B and has a width A in which the ration B/A is chosen equal to or larger than 4. The length B is set so as to satisfy a relation 0.35 m.ltoreq.B.ltoreq.0.55 m, where m is the length of an access opening in the housing for the disk in the rotational direction of the disk. At the same time, the slide surface is finished with such a precision that the slide surface shows a specular gloss. With such a magnetic head, the vibration of magnetic head assembly associated with rotation of the magnetic disk is successfully suppressed.