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:
Jul. 19, 2011
Filed:
Apr. 07, 2009
Yoichi Nishida, Odawara, JP;
Hideyuki Kubota, Odawara, JP;
Masakazu Nishikawa, Odawara, JP;
Makoto Nagao, Odawara, JP;
Ryuji Sugita, Hitachi, JP;
Takashi Komine, Hitachi, JP;
Yoichi Nishida, Odawara, JP;
Hideyuki Kubota, Odawara, JP;
Masakazu Nishikawa, Odawara, JP;
Makoto Nagao, Odawara, JP;
Ryuji Sugita, Hitachi, JP;
Takashi Komine, Hitachi, JP;
Fujifilm Corporation, Tokyo, JP;
Abstract
The present invention provides a magnetic transfer master carrier which forms a magnetic pattern corresponding to a pattern of information to be recorded on a perpendicular magnetic recording medium when a magnetic field is applied to the perpendicular magnetic recording medium, with the magnetic master carrier and the perpendicular magnetic recording medium closely attached to each other, the carrier including: a base material having convex portions on its surface, the convex portions being provided corresponding to the pattern of information; a magnetic layer deposited on at least top surfaces of the convex portions, and having perpendicular magnetic anisotropy; and a soft magnetic layer deposited on the surface of the magnetic layer.