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:
Sep. 06, 2022
Filed:
Feb. 14, 2019
Sony Corporation, Tokyo, JP;
Junichi Tachibana, Miyagi, JP;
Sogo Oikawa, Miyagi, JP;
Koji Suzuki, Miyagi, JP;
Teruo Sai, Miyagi, JP;
Tomoe Ozaki, Miyagi, JP;
SONY CORPORATION, Tokyo, JP;
Abstract
To provide a magnetic recording tape and the like that have excellent magnetic properties and exhibit a favorable SNR. There are provided a magnetic recording tape and the like including at least: a base layer that includes a long film having flexibility; and a magnetic layer formed on a side of one main surface of the base layer, in which an under layer and a seed layer are provided in the stated order from a side of the magnetic layer toward a side of the base layer between the magnetic layer and the base layer, the underlayer contains at least Co and Cr, and has an average atomic number ratio represented by the following formula (1): CoCr(where y is within a range of 37≤y≤45.), and the seed layer formed directly on the base layer has a film thickness of 5 nm or more and 30 nm or less, and contains Ti and O and has an average atomic number ratio represented by the following formula (2): TiO(where x≤10.) or contains Ti—Cr—O and has an average atomic number ratio represented by the following formula (3): (TiCr)O(where x≤10.).