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:
Feb. 17, 2004
Filed:
Mar. 15, 2001
Applicant:
Inventors:
Billy Wayne Crue, Pittsburgh, PA (US);
Sakhrat Khizroev, Pittsburgh, PA (US);
Dmitri Litvinov, Pittsburgh, PA (US);
Thomas McLendon Crawford, Pittsburgh, PA (US);
Assignee:
Seagate Technology LLC, Scotts Valley, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 5/147 ;
U.S. Cl.
CPC ...
G11B 5/147 ;
Abstract
A perpendicular recording head for use with magnetic storage media includes a flux focusing main pole. The main pole includes a layer of material having a high magnetic moment, and a second layer of material having a low magnetic moment. The low moment material is tapered towards the main pole's tip, so that all magnetic flux is channeled into the high moment material before writing to the magnetic storage medium.