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:
Jun. 19, 2012
Filed:
Feb. 16, 2010
Applicants:
Hiroyoshi Kodama, Kawasaki, JP;
Wataru Yamagishi, Kawasaki, JP;
Takuya Uzumaki, Kawasaki, JP;
Atsushi Tanaka, Kawasaki, JP;
Inventors:
Hiroyoshi Kodama, Kawasaki, JP;
Wataru Yamagishi, Kawasaki, JP;
Takuya Uzumaki, Kawasaki, JP;
Atsushi Tanaka, Kawasaki, JP;
Assignee:
Showa Denko K.K., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 5/855 (2006.01);
U.S. Cl.
CPC ...
Abstract
The method for manufacturing a magnetic recording medium in a shape of a disk includes forming convex sections repeating on the upper surface of an intermediate layer in the radial direction of the disk, and each having an upper surface that repulses magnetic particles; and filling the magnetic particles into concave sections sandwiched by the convex sections in a self-assembling way to form a magnetic recording layer with the magnetic particles.