Stock material or miscellaneous articles – Magnetic recording component or stock – Magnetic recording media substrate
Reexamination Certificate
2006-12-12
2006-12-12
Bernatz, Kevin M. (Department: 1773)
Stock material or miscellaneous articles
Magnetic recording component or stock
Magnetic recording media substrate
C428S847000, C428S848200, C428S847800, C427S129000
Reexamination Certificate
active
07147944
ABSTRACT:
The gas components in thermoplastic norbornene resin pellets are suppressed below certain levels by drying the resin under vacuum or under the ordinary pressure and under vacuum. A substrate for magnetic recording media is manufactured by injection-molding the resin dried by the method according to the invention. The magnetic recording medium, employing the substrate manufactured according to the invention, includes at least a magnetic layer, a protection layer on the magnetic layer and a liquid lubricant layer on the protection layer. The magnetic recording medium is manufactured by forming these layers, one after another, on the substrate according to the invention.
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Derwent Abstract Accession No. 2001-231064/24, JP 2001034930 A; Nippon Zeon KK; Feb. 9, 2001.
Sakaguchi Syoji
Suzuki Katsunori
Tei Youich
Bernatz Kevin M.
Darby & Darby
Fuji Electric & Co., Ltd.
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