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:
Aug. 12, 2008
Filed:
Sep. 20, 2004
Robert Earl Rottmayer, Wexford, PA (US);
Julius Kurt Hohlfeld, Wexford, PA (US);
William Albert Challener, Sewickley, PA (US);
Chubing Peng, Pittsburgh, PA (US);
Edward Charles Gage, Mars, PA (US);
Robert Earl Rottmayer, Wexford, PA (US);
Julius Kurt Hohlfeld, Wexford, PA (US);
William Albert Challener, Sewickley, PA (US);
Chubing Peng, Pittsburgh, PA (US);
Edward Charles Gage, Mars, PA (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
A transducer comprises a conductive pin and a waveguide for directing electromagnetic radiation onto the pin, wherein the pin is configured to create a rectangular flat top field distribution at a surface of a storage medium positioned adjacent to an end of the pin, leading to a flat top thermal profile within the storage medium. A second pin can be included in the transducer. Recording heads that include the transducer, disc drives that include the recording head, and a method of heating a portion of a storage medium that is performed by the recording head, are also included.