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:
Nov. 11, 2025
Filed:
Dec. 16, 2024
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;
Yousuke Isowaki, Yokohama Kanagawa, JP;
Kenichiro Yamada, Minato Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Toshiba Electronic Devices & Storage Corporation, Kawasaki, JP;
Abstract
According to one embodiment, a magnetic recording device includes a magnetic recording medium, a plurality of magnetic heads for recording information on the magnetic recording medium, and a controller for controlling the magnetic heads. Each of the magnetic heads includes a coil, a first magnetic pole for generating a magnetic field according to a recording current supplied to the coil, and a light emitting section for irradiating the magnetic recording medium with light to locally increase a temperature of the magnetic recording medium. The controller performs a first operation, in which a lifetime information related to a remaining life time of one of the magnetic heads is calculated based on a first information related to a failure probability of a magnetic head group including the magnetic heads and a second information related to a remaining time based on a history of the one of the magnetic heads.