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:
May. 05, 2015
Filed:
Nov. 15, 2013
Applicant:
Hgst Netherlands B.v., Amsterdam, NL;
Inventors:
Naoto Ito, Kanagawa, JP;
Michiya Kazusawa, Kanagawa, JP;
Hiroyasu Tanabe, Kanagawa, JP;
Sarbanoo Das, Kanagawa, JP;
Hideki Zaitsu, Kanagawa, JP;
Assignee:
HGST Netherlands B.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 13/08 (2006.01); G11B 5/09 (2006.01); G11B 5/00 (2006.01);
U.S. Cl.
CPC ...
G11B 5/09 (2013.01); G11B 2005/0021 (2013.01);
Abstract
A method of storing data includes providing a write signal for a write head of a hard disk drive, generating a transition pulse signal derived from the write signal using a transition pulse generator, and generating a logic signal to drive a thermal source associated with the write head of the hard disk drive. The logic signal includes the logical summation of a cyclical base pulse signal and the transition pulse signal.