Invention Grant
- Patent Title: Ferromagnetic hexagonal ferrite powder, method of manufacturing the same, and magnetic recording medium
- Patent Title (中): 铁磁六角铁氧体粉末，其制造方法和磁记录介质
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Application No.: US14499679Application Date: 2014-09-29
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Publication No.: US09502066B2Publication Date: 2016-11-22
- Inventor: Yoichi Hosoya
- Applicant: FUJIFILM CORPORATION
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2013-204843 20130930; JP2014-198175 20140929
- Main IPC: H01F1/10
- IPC: H01F1/10 ; G11B5/714 ; G11B5/712 ; G11B5/706 ; C01G49/00
Abstract:
An aspect of the present invention relates to ferromagnetic hexagonal ferrite powder, the average particle size of which is equal to or less than 20 nm, and which comprises, on a particle number basis, equal to or more than 50% of ellipsoid hexagonal ferrite powders satisfying relation (1): 1.2
Public/Granted literature
- US20150093600A1 FERROMAGNETIC HEXAGONAL FERRITE POWDER, METHOD OF MANUFACTURING THE SAME, AND MAGNETIC RECORDING MEDIUM Public/Granted day:2015-04-02
Information query
