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:
Sep. 27, 2011
Filed:
Jul. 26, 2010
Toru Ezawa, Hamura, JP;
Shuichi Kojima, Akishima, JP;
Masahide Kanegae, Tama, JP;
Kenichiro Yamada, Tokyo, JP;
Katsuhiko Koui, Yokohama, JP;
Masayuki Takagishi, Kunitachi, JP;
Toru Ezawa, Hamura, JP;
Shuichi Kojima, Akishima, JP;
Masahide Kanegae, Tama, JP;
Kenichiro Yamada, Tokyo, JP;
Katsuhiko Koui, Yokohama, JP;
Masayuki Takagishi, Kunitachi, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, an apparatus for controlling a head includes a transmitting module and a controller. The transmitting module is configured to transmit a write signal to a magnetic head having a spin torque oscillator at the time of recording data. The controller is configured to supply a drive signal that has a level higher than the ordinary level for a prescribed effective time, to the spin-torque oscillator in response to an input write gate that instructs the recording of data. During a period other than prescribed effective time, the controller supplies a drive signal having the ordinary level to the spin-torque oscillator.