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. 28, 2015
Filed:
Mar. 14, 2013
Seagate Technology Llc, Cupertino, CA (US);
Tim Rausch, Farmington, MN (US);
Jon D. Trantham, Chanhassen, MN (US);
John West Dykes, Eden Prairie, MN (US);
Housan Dakroub, Shakopee, MN (US);
Charles Paul Henry, Greenfield, MN (US);
Edward Charles Gage, Lakeville, MN (US);
Raul Horacio Andruet, Woodbury, MN (US);
James Gary Wessel, Savage, MN (US);
James Dillon Kiely, Edina, MN (US);
Bruce Douglas Buch, Westborough, MA (US);
Barmeshwar Vikramaditya, Eden Prairie, MN (US);
Seagate Technology LLC, Cupertino, CA (US);
Abstract
An apparatus includes a write element configured to apply a magnetic field to write data on a portion of a heat-assisted magnetic recording media in response to an energizing current. An energy source is configured to heat the portion of the media being magnetized by the write element. A preheat energizing current is applied to the write element during an interval before writing the data to the portion of the media. The preheat energizing current does not cause data to be written to the media and brings at least one of the write element and driver circuitry into thermal equilibrium prior to writing the data on the portion.