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:
Apr. 25, 2006
Filed:
Jul. 14, 2003
Kenji Shimizu, Ichihara, JP;
Akira Sakawaki, Ichihara, JP;
Hiroshi Sakai, Ichihara, JP;
Takashi Hikosaka, Tokyo, JP;
Soichi Oikawa, Chiba, JP;
Kenji Shimizu, Ichihara, JP;
Akira Sakawaki, Ichihara, JP;
Hiroshi Sakai, Ichihara, JP;
Takashi Hikosaka, Tokyo, JP;
Soichi Oikawa, Chiba, JP;
Showa Denko K.K., Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A magnetic recording medium comprising at least a soft magnetic layer, an orientation control film that controls the orientation of a film provided directly thereabove, an intermediate film, a perpendicular magnetic recording film of which the axis of easy magnetization is generally oriented perpendicular to a non-magnetic substrate, and a protective film, that are provided on said substrate, wherein the intermediate film has saturation magnetization Ms of at least 20 (emu/cc) and equal to or less than 200 (emu/cc), a method of manufacture thereof, and a magnetic read/write apparatus.