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:
May. 13, 2014
Filed:
Mar. 02, 2010
Ryo Kurita, Kawasaki, JP;
Satoshi Igarashi, Higashine, JP;
Isatake Kaitsu, Kawasaki, JP;
Akira Kikuchi, Higashine, JP;
Ryo Kurita, Kawasaki, JP;
Satoshi Igarashi, Higashine, JP;
Isatake Kaitsu, Kawasaki, JP;
Akira Kikuchi, Higashine, JP;
Showa Denko K.K., Tokyo, JP;
Abstract
A magnetic recording medium includes a non-magnetic granular layer, and a recording layer provided on the non-magnetic granular layer, wherein the recording layer includes a first granular magnetic layer provided on the non-magnetic granular layer, and a second granular magnetic layer provided on the first granular magnetic layer, and a non-magnetic material magnetically separating metal grains of the non-magnetic granular layer is different from a non-magnetic material magnetically separating magnetic grains of the first granular magnetic layer.