Electricity: measuring and testing – Magnetic – Displacement
Reexamination Certificate
2011-06-28
2011-06-28
Tang, Minh N (Department: 2858)
Electricity: measuring and testing
Magnetic
Displacement
C324S207240, C324S207210
Reexamination Certificate
active
07969148
ABSTRACT:
A magnetic sensor device may include “A”-phase magnetic resistance pattern and “B”-phase magnetic resistance pattern which are provided with a phase difference of 90° from each other; wherein the “A” pattern is provided with “+a” phase magnetic resistance pattern and “−a” phase magnetic resistance pattern with a phase difference of 180° from each other for detecting movement of a magnetic scale, and the “B” pattern is provided with “+b” phase magnetic resistance pattern and “−b” phase magnetic resistance pattern with a phase difference of 180° from each other for detecting movement of the magnetic scale, and the “+a” pattern, the “−a” pattern, the “+b” pattern and the “−b” pattern are formed on a same face of one piece of board so that the “+a” pattern and the “−a” pattern are diagonally located and the “+b” pattern and the “−b” pattern are diagonally located.
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International Search Report for International Patent Application No. PCT/JP2007/054191 mailed May 1, 2007.
Argua Fusayoshi
Mizoguchi Toshio
Moriyama Katsuya
Noguchi Naoyuki
Otaki Teruhiko
Cantor & Colburn LLP
Nidec Sankyo Corporation
Tang Minh N
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