Invention Grant
- Patent Title: Magnetic recording device capable of stabilizing oscillations of high frequency assisted element
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Application No.: US16556445Application Date: 2019-08-30
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Publication No.: US10741201B2Publication Date: 2020-08-11
- Inventor: Gaku Koizumi , Masaya Ohtake
- Applicant: Kabushiki Kaisha Toshiba , Toshiba Electronic Devices & Storage Corporation
- Applicant Address: JP Tokyo JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba,Toshiba Electronic Devices & Storage Corporation
- Current Assignee: Kabushiki Kaisha Toshiba,Toshiba Electronic Devices & Storage Corporation
- Current Assignee Address: JP Tokyo JP Tokyo
- Agency: White & Case LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@344c3ded
- Main IPC: G11B11/105
- IPC: G11B11/105 ; G11B5/09 ; G11B5/17 ; G11B5/35 ; G11B5/00
Abstract:
According to one embodiment, a magnetic disk device applies a bias voltage for measurement to a high frequency assist element according to a setting instruction of the bias voltage to measure a conduction current by in a recording head, calculates the resistance value in the supply path of the bias voltage from a relationship between the measured current and the bias voltage for measurement, and changes the bias voltage applied at the time of data recording based on the calculated resistance value.
Public/Granted literature
- US20200211585A1 MAGNETIC RECORDING DEVICE CAPABLE OF STABILIZING OSCILLATIONS OF HIGH FREQUENCY ASSISTED ELEMENT Public/Granted day:2020-07-02
Information query
IPC分类:
