Magnetic sensor and rotation-angle-detecting apparatus with...

Details Magnetic sensor and rotation-angle-detecting apparatus with... Magnetic sensor and rotation-angle-detecting apparatus with...

2009-01-26

2011-11-08

Patidar, Jay (Department: 2858)

Electricity: measuring and testing

Magnetic

Displacement

C324S207250, C324S252000

Reexamination Certificate

active

08054067

ABSTRACT:
A magnetic sensor comprising a bridge circuit in which four magnetoresistive devices are connected, the magnetoresistive device comprising a spin-valve, giant-magnetoresistive film comprising a pinned layer having unidirectional magnetic anisotropy, a free layer whose magnetization direction is rotated in alignment with an external magnetic field direction, and an intermediate layer sandwiched by the pinned layer and the free layer, and at least one of the magnetoresistive devices meeting the condition of 36°≦θ<45°, wherein θ is an acute angle between its longitudinal direction and the magnetization direction of the pinned layer.

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patent: 2009/0027048 (2009-01-01), Sato et al.
patent: 2009/0315543 (2009-12-01), Guo et al.
patent: 2001-159542 (2001-06-01), None
patent: 2003-502876 (2003-01-01), None
patent: 3587678 (2004-08-01), None
patent: 2005-024287 (2005-01-01), None

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