Patent ID: 11894027
Assignee: FUJIFILM CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 17:
18. A servo pattern recording method comprising:
generating a pulse signal; and
recording, by the servo pattern recording head having a substrate and a plurality of gap patterns formed on a front surface of the substrate, a plurality of servo patterns in a width direction of a magnetic tape by applying a magnetic field to the magnetic tape from the plurality of gap patterns in response to the pulse signal,
wherein the plurality of gap patterns are formed on the front surface along a direction corresponding to the width direction,
the gap patterns are at least one straight line region pair,
a first straight line region, which is one straight line region of the straight line region pair, and a second straight line region, which is the other straight line region of the straight line region pair, are inclined in opposite directions with respect to a first imaginary straight line along the direction corresponding to the width direction on the front surface,
the first straight line region has a steeper inclined angle with respect to the first imaginary straight line than the second straight line region,
positions of both ends of the first straight line region and positions of both ends of the second straight line region are aligned in the direction corresponding to the width direction of the magnetic tape,
positions of the plurality of gap patterns in a longitudinal direction of the magnetic tape are aligned on the front surface, and
the servo pattern recording method further includes supplying the pulse signal with a delay of a predetermined time to each of the plurality of gap patterns from one side to the other side in a direction in which the plurality of gap patterns are arranged.