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:
Nov. 15, 2011
Filed:
Jul. 06, 2009
Satoshi Igarashi, Higashine, JP;
Tohru Horie, Higashine, JP;
Ryo Kurita, Kawasaki, JP;
Isatake Kaitsu, Higashine, JP;
Akira Kikuchi, Higashine, JP;
Shinya Sato, Higashine, JP;
Satoshi Igarashi, Higashine, JP;
Tohru Horie, Higashine, JP;
Ryo Kurita, Kawasaki, JP;
Isatake Kaitsu, Higashine, JP;
Akira Kikuchi, Higashine, JP;
Shinya Sato, Higashine, JP;
Showa Denko K.K., Tokyo, JP;
Abstract
A magnetic recording medium includes a nonmagnetic granular layer that has a granular structure in which a plurality of nonmagnetic grains made of a nonmagnetic material are separated from one another by a Cr oxide. The magnetic recording medium further includes a magnetic granular layer that is formed on the nonmagnetic granular layer and has a granular structure in which a plurality of magnetic grains made of a magnetic material are separated from one another by a nonmagnetic material.