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:
Feb. 03, 2026
Filed:
Apr. 08, 2020
Applicant:
Nittetsu Mining Co., Ltd., Tokyo, JP;
Inventors:
Tsubasa Arai, Tokyo, JP;
Naoki Muratani, Kochi, JP;
Akira Kishimoto, Tokyo, JP;
Hideyuki Takahashi, Miyagi, JP;
Assignee:
NITTETSU MINING CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G 49/08 (2006.01); G03G 9/083 (2006.01);
U.S. Cl.
CPC ...
C01G 49/08 (2013.01); G03G 9/0833 (2013.01); G03G 9/0839 (2013.01); C01P 2004/61 (2013.01); C01P 2006/42 (2013.01); C01P 2006/62 (2013.01);
Abstract
Provided are cobalt ferrite particles having a micrometer-order average particle diameter and similar particle diameters. When a cobalt ferrite precursor is treated at a high temperature and a high pressure, an oxidation reaction is caused in the presence of a complexing agent, thereby obtaining intended cobalt ferrite magnetic particles.
Arai, Tsubasa. (2026). Cobalt ferrite particle production method and cobalt ferrite particles produced thereby (U.S. Patent No. 12540082). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12540082
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile