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:
Jan. 08, 1991
Filed:
Dec. 13, 1989
Applicant:
Inventors:
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427130 ; 427128 ; 427132 ;
Abstract
A method is described for producing a metal thin film type magnetic recording medium having a ferromagnetic metal or alloy thin film provided on a non-magnetic support, comprising the steps of forming said ferromagnetic metal or alloy thin film on said non-magnetic support, and then buffing the surface of said ferromagnetic metal or alloy thin film with nonwoven fabric.
Mochizuki, Kouichi. (1991). Method for producing magnetic recording media (U.S. Patent No. 4983421). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4983421
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile