Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Physical dimension specified
Reexamination Certificate
2005-06-28
2005-06-28
Rickman, Holly (Department: 1773)
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Physical dimension specified
C428S690000, C428S690000
Reexamination Certificate
active
06911256
ABSTRACT:
The invention is directed to magnetic media that make use of plastic substrates. Various buffer layer compositions are described, which can be formed over the plastic substrate. One or more ferromagnetic recording layers are then formed over the buffer layers. The described buffer layers can function as encapsulating layers in order to encapsulate the plastic substrate and provide a barrier between subsequently deposited magnetic layers and the gases within the substrate. Also, the buffer layers can reduce stress in the media either by functioning as a stress reduction layer that promotes growth of the magnetic recording layer in low stress orientations, or by functioning as a stress compensation layer that balances the stress of the subsequently deposited magnetic layers.
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Imation Corp.
Levinson Eric D.
Rickman Holly
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