Invention Grant
- Patent Title: Magnetic recording medium, sputtering target, sputtering target manufacturing method, and magnetic storage apparatus
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Application No.: US16169065Application Date: 2018-10-24
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Publication No.: US11244700B2Publication Date: 2022-02-08
- Inventor: Katsumi Murofushi , Yoshitaka Ishibashi , Takayuki Fukushima , Kazuya Niwa , Lei Zhang , Yuji Murakami , Hisato Shibata , Takehiro Yamaguchi , Chen Xu , Tetsuya Kanbe , Tomoo Shige
- Applicant: SHOWA DENKO K.K.
- Applicant Address: JP Tokyo
- Assignee: SHOWA DENKO K.K.
- Current Assignee: SHOWA DENKO K.K.
- Current Assignee Address: JP Tokyo
- Agency: IPUSA, PLLC
- Main IPC: G11B5/65
- IPC: G11B5/65 ; G11B5/72 ; G11B5/82 ; G11B5/851 ; C08L61/28
Abstract:
A magnetic recording medium includes a substrate, an underlayer provided on the substrate, and a magnetic layer provided on the underlayer and having a L10 structure and a (001) orientation. The magnetic layer has a granular structure in which an organic compound having a methylene skeleton or a methine skeleton is arranged at grain boundaries of magnetic grains.
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