Invention Grant
- Patent Title: Molded product of magnetic powder composition comprising magnetic powder of surface-treated magnetite particles, and methods of producing thereof
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Application No.: US14905292Application Date: 2014-07-17
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Publication No.: US11004582B2Publication Date: 2021-05-11
- Inventor: Hirohisa Ishizaki , Akira Ochiai
- Applicant: Somar Corporation
- Applicant Address: JP Chuo-ku
- Assignee: Somar Corporation
- Current Assignee: Somar Corporation
- Current Assignee Address: JP Chuo-ku
- Agency: Thomas|Horstemeyer, LLP
- Priority: JPJP2013-149821 20130718
- International Application: PCT/JP2014/069101 WO 20140717
- International Announcement: WO2015/008842 WO 20150122
- Main IPC: B05D7/00
- IPC: B05D7/00 ; H01F1/28 ; C08K9/04 ; C01G49/08 ; B22F1/00 ; C08J3/20 ; H01F1/44 ; H01F41/02
Abstract:
A magnetic powder is obtained by removing a dispersion medium from a magnetic fluid that includes magnetic particles, a dispersant and the dispersion medium. A magnetic powder composition includes the magnetic powder and a resin material, and a magnetic powder composition molded body is obtained therefrom. A method of producing a magnetic powder includes removing a dispersion medium from a magnetic fluid containing magnetic particles, a dispersant and the dispersion medium, and powdering a solid component obtained by removing the dispersion medium. A method of producing a magnetic powder composition and a method of producing a magnetic powder composition molded product are also provided.
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