Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to, the recording medium; Pole pieces; Gap features

Introduced: January 1985

Last revised: January 2006

Full Title

Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor > Structure or manufacture of heads, e.g. inductive > Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to, the recording medium; Pole pieces; Gap features

Classification Context

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

5 direct subcodes

Child Classifications

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G11B 5/193 the pole pieces being ferrite
G11B 5/21 the pole pieces being of ferrous sheet metal
G11B 5/23 Gap features
G11B 5/245 comprising means for controlling the reluctance of the magnetic circuit
G11B 5/255 comprising means for protection against wear