- 专利标题： Ferrimagnetic particle powder and method of manufacturing ferrimagnetic particle powder, as well as magnetic recording medium and method of manufacturing magnetic recording medium
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申请号： US15797736申请日： 2017-10-30
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公开(公告)号： US10783914B2公开(公告)日： 2020-09-22
- 发明人: Katsunori Maeshima
- 申请人： Sony Corporation
- 申请人地址： JP Tokyo
- 专利权人： Sony Corporation
- 当前专利权人： Sony Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： K&L Gates LLP
- 优先权： com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@3f0970fc
- 主分类号： G11B5/64
- IPC分类号： G11B5/64 ; G11B5/706 ; G11B5/714 ; C01G49/00 ; G11B5/84
摘要：
A magnetic recording medium includes: a substrate; and a magnetic layer including a ferrimagnetic particle powder. A product (V×SFD) of a particle volume V and a holding force distribution SFD of the ferrimagnetic particle is equal to or less than 2500 nm3.
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