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Sadao Sekizawa
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Hitachi, JP
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last 30 patents
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Patent Grant
Magneto resistive sensor for detecting movement of a rotating body
Patent number
RE34355
Issue date
Aug 24, 1993
Hitachi, Ltd.
Tadashi Takahashi
324 - Electricity: measuring and testing
Information
Patent Grant
Apparatus for magnetically detecting a position of a movable magnet...
Patent number
4,853,632
Issue date
Aug 1, 1989
Hitachi, Ltd.
Yoosuke Nagano
G01 - MEASURING TESTING
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Patent Grant
Magnetic detector having magnetoresistive elements
Patent number
4,639,807
Issue date
Jan 27, 1987
Hitachi, Ltd.
Sadao Sekizawa
G11 - INFORMATION STORAGE
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Patent Grant
Magneto resistive sensor for detecting movement of a rotating body
Patent number
4,628,259
Issue date
Dec 9, 1986
Hitachi, Ltd.
Tadashi Takahashi
G01 - MEASURING TESTING