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. 22, 1995
Filed:
Nov. 22, 1993
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A magnetic recording film, which has excellent slip durability, is run-proof and wear-proof as well as self-lubricating, is obtained by forming a chemically adsorbed film composed of straight carbon chain surface active materials having different carbon numbers, the chemically adsorbed film being chemically bonded via siloxane covalently bonds. In the method of manufacture, a magnetic recording medium, e.g., a hard disk, is contacted with a solution which is made by dissolving a straight carbon chain surface active material having a chlorosilyl group at one end and a fluorocarbon or hydrocarbon group at the other end in a non-aqueous solvent, thereby chemically bonding the chlorosilane-based straight chain surface active material to the surface of the magnetic recording medium via siloxane covalently bonds.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile