Electricity: measuring and testing – Magnetic – Displacement
Reexamination Certificate
2006-12-12
2006-12-12
Patidar, Jay M. (Department: 2862)
Electricity: measuring and testing
Magnetic
Displacement
C324S207200
Reexamination Certificate
active
07148680
ABSTRACT:
A rotation angle detecting device for a rotation object includes a rotor and a pair of permanent magnets and a magnetic detector disposed at the rotation axis of the rotation object. One of the permanent magnets has a circumferentially extending rut-shape concavity around the magnet detector or an axially extending elliptic columnar surface having a central portion thicker than others to make magnetic flux density in the vicinity of said magnetic detector constant in an axial or a diametrical direction.
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Ban Takao
Mizutani Akitoshi
Denso Corporation
Nixon & Vanderhye P.C.
Patidar Jay M.
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