logo

For the Inventor, By the Inventor

The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11004582 B1

PDFFull Text
Date of Patent:
May. 11, 2021

Filed:

Jul. 17, 2014

Molded product of magnetic powder composition comprising magnetic powder of surface-treated magnetite particles, and methods of producing thereof

Applicant:

Somar Corporation, Chuo-ku, JP;

Inventors:

Hirohisa Ishizaki, Soka, JP;

Akira Ochiai, Soka, JP;

Assignee:

SOMAR CORPORATION, Tokyo, JP;

Attorney:

Thomas|Horstemeyer, LLP

Primary Examiner:

Hoa (Holly) Le

Int. Cl.
CPC ...
B05D 7/00 (2006.01); H01F 1/28 (2006.01); C08K 9/04 (2006.01); C01G 49/08 (2006.01); B22F 1/00 (2006.01); C08J 3/20 (2006.01); H01F 1/44 (2006.01); H01F 41/02 (2006.01);
U.S. Cl.
CPC ...
H01F 1/28 (2013.01); B22F 1/0018 (2013.01); B22F 1/0062 (2013.01); C01G 49/08 (2013.01); C08J 3/201 (2013.01); C08K 9/04 (2013.01); H01F 1/445 (2013.01); H01F 41/0266 (2013.01); B22F 1/0059 (2013.01); B22F 2998/10 (2013.01); C01P 2004/61 (2013.01); C08J 2363/02 (2013.01); C08K 2201/01 (2013.01); C22C 2202/02 (2013.01);
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.

Find Patent Forward Citations

Loading…