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:
Apr. 05, 2005
Filed:
Sep. 19, 2000
Dmitri Litvinov, Pittsburgh, PA (US);
Sakhrat Khizroev, Pittsburgh, PA (US);
Dmitri Litvinov, Pittsburgh, PA (US);
Sakhrat Khizroev, Pittsburgh, PA (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
A perpendicular recording head () for use with magnetic recording media () includes a main pole () and a magnetic field source which is positioned sufficiently close to the main pole tip to generate a background magnetic field in the recording media. A conductive magnetizing coil () surrounding the main pole is preferably used as the magnetic field source. The background magnetic field generated by the magnetizing coil effectively reduces the coercivity of the magnetic recording media in the region affected by the background field. The recording head enables writing on high coercivity/high anisotropy magnetic media, thereby achieving extremely high recording densities.