Invention Grant
- Patent Title: Magnetic powder for magnetic recording, magnetic recording medium, and method of manufacturing magnetic powder for magnetic recording
- Patent Title (中): 用于磁记录的磁粉，磁记录介质，以及制造用于磁记录的磁粉的方法
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Application No.: US14584568Application Date: 2014-12-29
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Publication No.: US09589584B2Publication Date: 2017-03-07
- Inventor: Masashi Shirata
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2013-272726 20131227
- Main IPC: G11B5/708
- IPC: G11B5/708 ; G11B5/706 ; C01G49/00 ; H01F1/11 ; H01F1/113
Abstract:
An aspect of the present invention relates to magnetic powder, which is magnetoplumbite hexagonal strontium ferrite magnetic powder comprising 1 atomic percent to 5 atomic percent of Ba per 100 atomic percent of Fe, the average particle size of which ranges from 10 nm to 25 nm, and which is magnetic powder for magnetic recording.
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