Stock material or miscellaneous articles – Magnetic recording component or stock – Thin film media
Reexamination Certificate
2005-04-18
2009-10-27
Rickman, Holly (Department: 1794)
Stock material or miscellaneous articles
Magnetic recording component or stock
Thin film media
C428S827000, C428S832000
Reexamination Certificate
active
07608348
ABSTRACT:
Magnetic medium for storing information, includes at least two materials A and B which are connected with one another, material A being a hard magnetic material, wherein material B is a material which exhibits metamagnetic behavior in a magnetic field, the metamagnetic behavior of the material being such that, even after passing repeatedly through an external magnetic field from 0 to 10 tesla at least at a magnetic field strength below 3 tesla, an increase in the magnetization occurs as a function of the magnetic field, the increase being superproportional and having a positive curvature.
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Jordan and Hamburg LLP
Leibniz - Institut fuer Festkoerper-und Werkstoffforschung Dresd
Rickman Holly
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