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:
Oct. 21, 1980
Filed:
Aug. 13, 1979
Waichi Nagashiro, Hachioji, JP;
Hajime Fukke, Inagi, JP;
Yoshiki Kato, Tokyo, JP;
Teruo Tsunoda, Tokyo, JP;
Teruaki Kobayashi, Hachioji, JP;
Yoichi Oba, Hachioji, JP;
Katsuyoshi Chiba, Hachioji, JP;
Munehisa Mitsuya, Hachioji, JP;
Heigo Ishihara, Kokubunji, JP;
Mitsushi Endo, Hadano, JP;
Hitachi, Ltd., , JP;
Abstract
A method of manufacturing a paint composite for magnetic films wherein a mixture consisting of a magnetic powder, a polymer such as polyvinylbutyral, and a solvent is ground under a shear stress of 10-400 kg/cm.sup.2, and the ground mixture has a solvent, an epoxy resin and a phenol resin added thereto and is further ground. When a magnetic disk is produced using a paint which has been obtained by executing the first grinding under a shear stress of 10-400 kg/cm.sup.2 with a kneader or the like, it is endowed with excellent electric characteristics and surface flatness.