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.:
Date of Patent:
Nov. 22, 2016
Filed:
Sep. 29, 2014
Applicant:
Fujifilm Corporation, Minato-ku, Tokyo, JP;
Inventor:
Yoichi Hosoya, Minami-ashigara, JP;
Assignee:
FUJIFILM Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/10 (2006.01); G11B 5/714 (2006.01); G11B 5/712 (2006.01); G11B 5/706 (2006.01); C01G 49/00 (2006.01);
U.S. Cl.
CPC ...
G11B 5/70678 (2013.01); C01G 49/0036 (2013.01); C01P 2004/10 (2013.01); C01P 2004/20 (2013.01); C01P 2004/30 (2013.01); C01P 2004/54 (2013.01); C01P 2004/64 (2013.01); C01P 2006/12 (2013.01); C01P 2006/42 (2013.01); Y02P 20/544 (2015.11); Y10T 428/2982 (2015.01);
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<major axis length/minor axis length<2.0 . . . (1).