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:
Nov. 22, 2005
Filed:
Nov. 01, 2000
Mariana Munteanu, Santa Clara, CA (US);
Kuo-hsing Hwang, San Jose, CA (US);
Mariana Munteanu, Santa Clara, CA (US);
Kuo-Hsing Hwang, San Jose, CA (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
High density longitudinal magnetic recording media are formed with two magnetic layers for enhanced SMNR, high signal, low PW 50 and high resolution. The bilayer magnetic structure comprises a first magnetic layer optimized for SMNR and a second magnetic layer formed directly on the first magnetic layer and optimized for Ms. Embodiments of the present invention include first and second magnetic layers containing Co, Cr and Pt, wherein the first magnetic layer has a higher Cr content than the second magnetic layer and the second magnetic layer has a higher Co content than the first magnetic layer.