Coded data generation or conversion – Digital pattern reading type converter – Magnetic – inductive or capacitive
Reexamination Certificate
2007-02-20
2008-11-25
JeanPierre, Peguy (Department: 2819)
Coded data generation or conversion
Digital pattern reading type converter
Magnetic, inductive or capacitive
Reexamination Certificate
active
07456758
ABSTRACT:
To provide a magnetic encoder having high resolution and a high output, and a magnetoresistive sensor for an encoder. A fine sensor having a reduced demagnetization field is produced by: forming a free layer consists of a laminated soft magnetic film in which two soft magnetic layers are coupled in anti-parallel, and setting the width of a sensor unit to 2 μm to 4 μm.
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Abe Yasunori
Hoshiya Hiroyuki
Meguro Kenichi
Nakamoto Kazuhiro
Antonelli, Terry Stout & Kraus, LLP.
Hitachi Metals Ltd.
Jean-Pierre Peguy
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