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. 01, 1983
Filed:
Dec. 05, 1980
Applicant:
Inventors:
Toshiaki Izumi, Tokyo, JP;
Seitoku Saito, Tokyo, JP;
Fumio Maruta, Tokyo, JP;
Minoru Kameya, Tokyo, JP;
Assignee:
TDK Electronics Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; H01F / ;
U.S. Cl.
CPC ...
428555 ; 360134 ; 360135 ; 427131 ; 427132 ; 428551 ; 428611 ; 428928 ;
Abstract
A magnetic recording medium having multi-layer structure of two or more thin metallic layers on a substrate. The orientations of metallic particles are different for each of said thin metallic layers.
Izumi, Toshiaki. (1983). Magnetic recording medium with stepwise orientation of deposited (U.S. Patent No. 4371590). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4371590
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile