US 12,394,434 B2
Magnetic head, magnetic tape, magnetic tape cartridge, magnetic tape drive, and magnetic tape reading method
Toru Nakao, Kanagawa (JP); Tetsuya Kaneko, Kanagawa (JP); and Yoichi Akano, Kanagawa (JP)
Assigned to FUJIFILM Corporation, Tokyo (JP)
Filed by FUJIFILM Corporation, Tokyo (JP)
Filed on Jul. 10, 2024, as Appl. No. 18/768,256.
Application 18/768,256 is a continuation of application No. 18/171,919, filed on Feb. 21, 2023, granted, now 12,068,011.
Claims priority of application No. 2022-054513 (JP), filed on Mar. 29, 2022.
Prior Publication US 2024/0363142 A1, Oct. 31, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G11B 5/55 (2006.01); G11B 5/592 (2006.01)
CPC G11B 5/5508 (2013.01) [G11B 5/5928 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A magnetic tape in which the data band and the pair of servo bands read by a magnetic head are formed, the magnetic head comprising:
a first servo reading element pair that reads a pair of servo bands adjacent to each other via a data band having a plurality of tracks from a magnetic tape in which the data band and the pair of servo bands are formed;
a second servo reading element pair that reads the pair of servo bands at a timing different from a timing of the first servo reading element pair; and
a plurality of magnetic elements that are disposed in a straight line and perform magnetic processing on a track in accordance with a reading result of the first servo reading element pair or the second servo reading element pair among the plurality of tracks,
wherein the first servo reading element pair consists of a first servo reading element and a second servo reading element,
the second servo reading element pair consists of a third servo reading element and a fourth servo reading element,
the first servo reading element and the third servo reading element are disposed on one end side of the plurality of magnetic elements and read one servo band of the pair of servo bands, and
the second servo reading element and the fourth servo reading element are disposed on the other end side of the plurality of magnetic elements and read the other servo band of the pair of servo bands
wherein a base film of the magnetic tape is made of polyethylene terephthalate, polyethylene naphthalate, or polyamide,
wherein the pair of servo bands are used shared in a plurality of numbers of channels, and
wherein the plurality of numbers of channels are 32 channels and 64 channels.