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:
Mar. 21, 2006
Filed:
Mar. 13, 2003
Toyoji Ataka, Nagano, JP;
Satoru Nakamura, Nagano, JP;
Katsuya Masuda, Nagano, JP;
Ryoichi Kadota, Nagano, JP;
Yuji Ando, Nagano, JP;
Toyoji Ataka, Nagano, JP;
Satoru Nakamura, Nagano, JP;
Katsuya Masuda, Nagano, JP;
Ryoichi Kadota, Nagano, JP;
Yuji Ando, Nagano, JP;
Fuji Electric Co., Ltd., Kawasaki, JP;
Abstract
A high-density magnetic recording medium uses a nonmetallic substrate, while still providing high in-plane magnetic anisotropy and remanent coercivity. Such a medium can be formed by depositing a seed layer on a textured surface of the nonmetallic substrate in a gas mixture containing oxygen or nitrogen and an inert gas, while controlling the oxygen concentration or nitrogen concentration, and subsequently exposing the surface of the seed layer to oxygen or nitrogen.