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:
Oct. 11, 2005
Filed:
Jun. 26, 2002
Thomas Mclendon Crawford, Pittsburgh, PA (US);
Mark William Covington, Pittsburgh, PA (US);
Gregory John Parker, Warrendale, PA (US);
Thomas McLendon Crawford, Pittsburgh, PA (US);
Mark William Covington, Pittsburgh, PA (US);
Gregory John Parker, Warrendale, PA (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
The present invention provides magnetic recording heads which utilize higher order excitations of dynamic magnetization to increase frequency without the necessity of biasing the write yoke. In accordance with the present invention, the size and placement of current-carrying microstrip waveguide(s) and write pole(s) are controlled in order to generate spin wave write modes. During writing operations, the magnetization is driven into higher order spatial spin wave modes.