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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 11302351 B1

PDFFull Text
Date of Patent:
Apr. 12, 2022

Filed:

Nov. 19, 2018

High density magnetic recording medium and cartridge including high density magnetic recording medium

Applicant:

Sony Corporation, Tokyo, JP;

Inventors:

Minoru Yamaga, Miyagi, JP;

Takanobu Iwama, Miyagi, JP;

Jun Takahashi, Miyagi, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:

K&L Gates LLP

Primary Examiner:

Tan X Dinh

Int. Cl.
CPC ...
G11B 5/584 (2006.01); G11B 5/592 (2006.01); G11B 5/706 (2006.01); G11B 5/008 (2006.01); G11B 5/733 (2006.01); G11B 20/12 (2006.01);
U.S. Cl.
CPC ...
G11B 5/5928 (2013.01); G11B 5/00813 (2013.01); G11B 5/00817 (2013.01); G11B 5/584 (2013.01); G11B 5/70621 (2013.01); G11B 5/70678 (2013.01); G11B 5/733 (2013.01); G11B 20/1202 (2013.01);
Abstract

A magnetic recording medium according to the present technology includes: a base material; and a magnetic layer, in which the magnetic recording medium has a tape shape that is long in a longitudinal direction and short in a width direction, the magnetic layer includes a data band and a servo band, a data signal being written to the data band, the data band being long in the longitudinal direction, a servo signal being written to the servo data, the servo band being long in the longitudinal direction, the degree of perpendicular orientation of the magnetic layer being 65% or more, a full width at half maximum of an isolated waveform in a reproduced waveform of the servo signal is 195 nm or less, the magnetic layer has a thickness of 90 nm or less, and the base material has a thickness of 4.2 μm or less.

Find Patent Forward Citations

Yamaga, Minoru. (2022). High density magnetic recording medium and cartridge including high density magnetic recording medium (U.S. Patent No. 11302351). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11302351

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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