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:
Feb. 12, 1991
Filed:
May. 19, 1989
Applicant:
Inventors:
Kazufumi Ogawa, Hirakata, JP;
Hideharu Tamura, Katano, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ; G11B / ;
U.S. Cl.
CPC ...
427 44 ; 427 38 ; 427 541 ; 427128 ; 427130 ; 427131 ; 4274301 ; 428447 ; 428694 ; 428695 ; 428900 ;
Abstract
This invention relates to a manufacturing method for a recording medium or a recording head characterized in improving the slide ability of a surface of a recording medium or a recording head, and improvement or their durability by forming a monomolecular film made from silane surfactants on the surface of a recording medium or a head by direct or indirect chemisorption.