ClassID:

198161

G11B7/24059 - CPC Classification

Classification description:

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; Light transmission layers lying on the light entrance side and being thinner than the substrate, e.g. specially adapted for Blu-ray® discs specially adapted for near-field recording or reproduction

Recent Application in this class: