Invention Grant
- Patent Title: Recording device and recording method
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Application No.: US17401326Application Date: 2021-08-13
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Publication No.: US11574652B2Publication Date: 2023-02-07
- Inventor: Shin-ichi Ohkoshi , Marie Yoshikiyo , Kenta Imoto , Kosuke Nakagawa , Asuka Namai , Hiroko Tokoro , Makoto Nakajima , Masashi Shirata , Kenji Naoi
- Applicant: The University of Tokyo , OSAKA UNIVERSITY , FUJIFILM Corporation
- Applicant Address: JP Tokyo; JP Osaka; JP Tokyo
- Assignee: The University of Tokyo,OSAKA UNIVERSITY,FUJIFILM Corporation
- Current Assignee: The University of Tokyo,OSAKA UNIVERSITY,FUJIFILM Corporation
- Current Assignee Address: JP Tokyo; JP Osaka; JP Tokyo
- Agency: JCIPRNET
- Priority: JPJP2019-024026 20190213
- Main IPC: G11B5/00
- IPC: G11B5/00 ; G11B11/105 ; G11B5/706
Abstract:
Provided is a recording device. The recording device includes: an external magnetic field application unit that is configured to apply an external magnetic field to a magnetic recording medium; a light irradiation unit that is configured to irradiate light; and a light focusing unit that is configured to focus the light from the light irradiation unit by resonating the light to generate an enhanced magnetic field in which a magnetic field of the light is enhanced, in which magnetization of the magnetic recording medium is inverted by applying the external magnetic field and the enhanced magnetic field to the magnetic recording medium.
Public/Granted literature
- US20210375314A1 RECORDING DEVICE AND RECORDING METHOD Public/Granted day:2021-12-02
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