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:
Jan. 06, 2009
Filed:
Dec. 30, 2005
Rachid Sbiaa, Tokyo, JP;
Isamu Sato, Tokyo, JP;
Haruyuki Morita, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A compact oscillator in which the oscillation frequency can be adjusted to a desired value is provided. The oscillator includes: a magnetoresistive effect element comprising a pinned layer, a nonmagnetic spacer layer, and a free layer of which magnetization direction is changeable that are stacked in that order, a magnetization direction of the pinned layer being substantially fixed along a direction perpendicular to a stack direction; a bias magnetic field application unit for applying a bias magnetic field to the free layer in a direction that is perpendicular to the stack direction and is different from the magnetization direction of the pinned layer; and an adjusting magnetic field application unit for applying an adjusting magnetic field to the free layer in a direction that is perpendicular to the stack direction and is different from the direction of the bias magnetic field.