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:
Oct. 13, 2009
Filed:
Oct. 30, 2006
Chih-huang Lai, Hsinchu, TW;
David Vokoun, Hsinchu, TW;
Yu-yi Liao, Hsinchu, TW;
Meng-shian Lin, Hsinchu, TW;
Chih-Huang Lai, Hsinchu, TW;
David Vokoun, Hsinchu, TW;
Yu-Yi Liao, Hsinchu, TW;
Meng-Shian Lin, Hsinchu, TW;
National Taiwan University, Taipei, TW;
Abstract
A perpendicular magnetic recording medium includes: a substrate; a soft magnetic film formed on the substrate; a non-magnetic film including an amorphous interlayer formed on the soft magnetic film and made from a metallic material selected from terbium, gadolinium, dysprosium, tantalum, hafnium, and combinations thereof, a buffer layer formed on the amorphous interlayer and having a face-centered cubic structure, and a seed layer formed on the buffer layer and having a hexagonal crystal structure; and a granular magnetic recording film formed on the seed layer.