CPC Subgroup
G11B 5/70 on a base layer
Full Title
Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (G11B11/00 take precedence) > Record carriers characterised by the selection of the material > comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent > on a base layer
8 direct subcodes
Child Classifications
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- G11B 5/702 characterised by the bonding agent
- G11B 5/706 characterised by the composition of the magnetic material
- G11B 5/708 characterised by addition of non-magnetic particles to the layer
- G11B 5/71 characterised by the lubricant
- G11B 5/712 characterised by the surface treatment or coating of magnetic particles
- G11B 5/714 characterised by the dimension of the magnetic particles
- G11B 5/716 characterised by two or more magnetic layers