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. 26, 2009
Filed:
Aug. 19, 2005
Mitsuru Takai, Tokyo, JP;
Kazuhiro Hattori, Tokyo, JP;
Takahiro Suwa, Tokyo, JP;
Shuichi Okawa, Tokyo, JP;
Mitsuru Takai, Tokyo, JP;
Kazuhiro Hattori, Tokyo, JP;
Takahiro Suwa, Tokyo, JP;
Shuichi Okawa, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A magnetic recording medium is provided in which a magnetic recording layeris provided in a predetermined concavo-convex pattern on a substrateA, a concave portion in a concavo-convex pattern is filled with a non-magnetic material, and a non-magnetic layerformed of the non-magnetic material positioned at the bottom surface of the concave portion in the non-magnetic materials is formed on a convex portion of the concavo-convex pattern while surface of the convex portion and the concave portion is substantially flattened, and a thickness of the non-magnetic layeris 1 nm or less.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile