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PCE
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IPC Subgroup
G11B 7/24053

Protective topcoat layers lying opposite to the light entrance side, e.g. layers for preventing electrostatic charging

Introduced: January 2013

Full Title

Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power; Record carriers therefor > Record carriers characterised by shape, structure or physical properties, or by the selection of the material > Layers; Shape, structure or physical properties thereof > Protective topcoat layers lying opposite to the light entrance side, e.g. layers for preventing electrostatic charging

Classification Context

Section:
PHYSICS
Class:
INFORMATION STORAGE
Subclass:
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER