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:
Jan. 14, 2020
Filed:
Sep. 29, 2016
Applicant:
Fujifilm Corporation, Tokyo, JP;
Inventors:
Mika Imamura, Minami-ashigara, JP;
Toshihide Aoshima, Minami-ashigara, JP;
Isamu Watanabe, Minami-ashigara, JP;
Assignee:
FUJIFILM Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/842 (2006.01); G11B 5/702 (2006.01); G11B 5/706 (2006.01); G11B 5/70 (2006.01); H01F 1/44 (2006.01); H01F 1/03 (2006.01);
U.S. Cl.
CPC ...
G11B 5/842 (2013.01); G11B 5/7013 (2013.01); G11B 5/7021 (2013.01); G11B 5/70605 (2013.01); H01F 1/0315 (2013.01); H01F 1/445 (2013.01);
Abstract
The metal oxide particle dispersion for manufacturing a particulate magnetic recording medium contains metal oxide particles, solvent, and a polyester compound having one or more groups selected from the group consisting of a carboxyl group and a salt thereof, a phosphoric acid group and a salt thereof, a hydroxyl group and a nitrogen-substituted alkylene group, but substantially not containing ferromagnetic powder.