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:
Jun. 15, 2010
Filed:
Dec. 28, 2004
Zhong (Stella) Wu, Fremont, CA (US);
Samuel Dacke Harkness, Iv, Berkeley, CA (US);
Hans J. Richter, Palo Alto, CA (US);
Alexander Yulievich Dobin, Milpitas, CA (US);
Zhong (Stella) Wu, Fremont, CA (US);
Samuel Dacke Harkness, IV, Berkeley, CA (US);
Hans J. Richter, Palo Alto, CA (US);
Alexander Yulievich Dobin, Milpitas, CA (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
A granular perpendicular magnetic recording medium comprises a non-magnetic substrate and a granular perpendicular magnetic recording layer overlying the substrate, comprising a first granular perpendicular magnetic layer proximal the substrate and having a first saturation magnetization (M), and a second granular perpendicular magnetic layer distal the substrate and having a second, different saturation magnetization (M). Also disclosed is a method of fabricating the granular perpendicular magnetic recording medium.