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:
Mar. 11, 1986
Filed:
Jul. 10, 1984
Applicant:
Inventors:
Masatoshi Nakayama, Saku, JP;
Haruyuki Morita, Saku, JP;
Yuichi Kubota, Komoro, JP;
Keiko Tsuchiya, Saku, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428480 ; 360134 ; 360135 ; 360136 ; 427 40 ; 427129 ; 427128 ; 427131 ; 427132 ; 428694 ; 428900 ;
Abstract
In a magnetic recording medium comprising a plastic base film and a magnetic layer formed thereon, the base film is plasma treated at frequencies in the range of 10 kHz to 200 kHz in an inorganic gas such as argon and nitrogen and preferably, in an inorganic gas containing at least 5% of oxygen.
Quick Actions:
Nakayama, Masatoshi. (1986). Magnetic recording medium (U.S. Patent No. 4575475). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4575475
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile