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:
Aug. 29, 2000
Filed:
May. 29, 1998
Taro Sasaki, Miyagi, JP;
Sony Corporation, Tokyo, JP;
Abstract
The present invention provides a magnetic recording medium having an excellent dispersion stability of a magnetic paint and excellent magnetic characteristic. The magnetic recording medium includes a non-magnetic support body on which a magnetic layer is formed which contains a ferromagnetic metal powder having a saturation magnetization of 148 Am.sup.2 /kg or above and a binder. The ferromagnetic metal powder mainly consists of a transition metal to which Al, Si, and Sm are added. The Al content is in the range defined by: 24 atomic %.ltoreq.A/(Al+Si+Sm).ltoreq.45 atomic %. The binder contains 20 weight % of vinyl chloride resin having a polar group with respect to the total of binder agents.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile