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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12374361 B1

PDFFull Text
Date of Patent:
Jul. 29, 2025

Filed:

Mar. 07, 2024

Magnetic tape, magnetic tape cartridge, servo pattern recording device, magnetic tape drive, magnetic tape system, detection device, inspection device, servo pattern recording method, manufacturing method of magnetic tape, detection method, and inspection method

Applicant:

Fujifilm Corporation, Tokyo, JP;

Inventors:

Toru Nakao, Kanagawa, JP;

Tetsuya Kaneko, Kanagawa, JP;

Yoichi Akano, Kanagawa, JP;

Assignee:

FUJIFILM CORPORATION, Tokyo, JP;

Attorney:

SOLARIS Intellectual Property Group, PLLC

Primary Examiner:

Peter Vincent Agustin

Int. Cl.
CPC ...
G11B 5/592 (2006.01); G11B 5/78 (2006.01); G11B 5/84 (2006.01); G11B 15/43 (2006.01); G11B 15/60 (2006.01);
U.S. Cl.
CPC ...
G11B 5/5928 (2013.01); G11B 5/78 (2013.01); G11B 5/84 (2013.01); G11B 15/43 (2013.01); G11B 15/602 (2013.01);
Abstract

A plurality of servo patterns are recorded in a magnetic tape along a longitudinal direction. The servo pattern is at least one linear magnetization region pair. The linear magnetization region pair includes a first linear magnetization region, which is linearly magnetized, and a second linear magnetization region, which is linearly magnetized. The first linear magnetization region and the second linear magnetization region are inclined in opposite directions with respect to a first imaginary straight line along a width direction of the magnetic tape. The first linear magnetization region has a steeper inclined angle with respect to the first imaginary straight line than the second linear magnetization region.

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