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.:
Date of Patent:
Feb. 03, 2026
Filed:
May. 31, 2024
Fujifilm Corporation, Tokyo, JP;
Norihito Kasada, Minamiashigara, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
Provided is a magnetic tape apparatus. A maximum value of an absolute value of a difference between a servo band interval obtained before storage in a predetermined environment and a servo band interval obtained after storage for a storage time T in the above-described environment is defined as A, and a medium life is equal to or longer than 5 years, which is calculated by a linear function of A and a logarithm logT of T, which are derived from a value of A and a value of the logarithm logT of T, each of which is obtained by setting T as a plurality of predetermined times. The medium life is T in a case where A satisfies a predetermined equation. The magnetic tape includes a polyethylene naphthalate support having a Young's modulus in the width direction, which is equal to or more than 10000 MPa.