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.

Date of Patent:
Sep. 04, 2007

Filed:

Sep. 08, 2004
Applicants:

Antony Ajan, Kawasaki, JP;

Akihiro Inomata, Kawasaki, JP;

E. Noel Abarra, Santa Clara, CA (US);

B. Ramamurthy Acharya, Cupertino, CA (US);

Inventors:

Antony Ajan, Kawasaki, JP;

Akihiro Inomata, Kawasaki, JP;

E. Noel Abarra, Santa Clara, CA (US);

B. Ramamurthy Acharya, Cupertino, CA (US);

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/66 (2006.01);
U.S. Cl.
CPC ...
Abstract

A magnetic recording medium includes a substrate, a magnetic recording layer made of a Co alloy or a CoCr alloy, a seed layer disposed between the substrate and the magnetic recording layer, and an underlayer made of a binary alloy material having a B2 structure and disposed between the seed layer and the magnetic recording layer. The seed layer is made of a material comprising essentially of one of elements forming the binary alloy material of the underlayer.


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