Stock material or miscellaneous articles – All metal or with adjacent metals – Having magnetic properties – or preformed fiber orientation...
Reexamination Certificate
2005-08-30
2005-08-30
Bernatz, Kevin M. (Department: 1773)
Stock material or miscellaneous articles
All metal or with adjacent metals
Having magnetic properties, or preformed fiber orientation...
C428S668000, C428S669000, C428S678000, C428S686000, C428S336000, C428S690000
Reexamination Certificate
active
06936352
ABSTRACT:
A magnetic recording medium can be produced without substrate heating during sputtering. The recording medium has a substrate, an underlayer of a nonmagnetic film with a bcc structure formed on the substrate, an intermediated layer of a nonmagnetic film with an hcp structure formed on the underlayer, a magnetic layer of a magnetic film with an hcp structure formed on the intermediate layer, and a protective layer formed on the magnetic layer. Materials used for the underlayer, the intermediate layer, and the magnetic layer has spacings between principal lattice planes of the respective crystals that can be expresses as d1(between (110) planes in the underlayer)>d2(between (002) planes in the intermediate layer)>d3(between (002) planes in the magnetic layer).
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Ohsawa Michio
Otsuki Akihiro
Bernatz Kevin M.
Fuji Electric & Co., Ltd.
Rossi, Kimms & McDowell
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