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:
Jul. 14, 1992
Filed:
Jun. 08, 1990
Hiroshi Ohashi, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A magnetic disk unit has a magnetic head and a magnetic recording medium. The magnetic head records and retrieves information to and from the magnetic recording medium. In the magnetic disk unit the magnetic head and magnetic recording medium move relative to each other; and a device sets the frictional coefficient of the magnetic head and magnetic recording medium within an intermediate range extending from a minimum frictional coefficient point to a point where the durability of the magnetic head and the magnetic recording medium is not adversely affected. The range is determined, on a Stribeck diagram which indicates the relation of a relative velocity to a frictional coefficient of the magnetic head and magnetic recording medium.