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:
Jul. 18, 2023
Filed:
Jan. 10, 2022
Applicant:
Taiyo Nippon Sanso Corporation, Tokyo, JP;
Inventors:
Assignee:
TAIYO NIPPON SANSO CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F 3/10 (2006.01); B22F 1/145 (2022.01); B22F 9/22 (2006.01); B22F 1/16 (2022.01); B22F 1/054 (2022.01);
U.S. Cl.
CPC ...
B22F 3/1007 (2013.01); B22F 1/054 (2022.01); B22F 1/145 (2022.01); B22F 1/16 (2022.01); B22F 9/22 (2013.01); B22F 1/056 (2022.01); B22F 2201/01 (2013.01); B22F 2201/013 (2013.01); B22F 2201/04 (2013.01); B22F 2301/10 (2013.01); B22F 2302/25 (2013.01); B22F 2304/054 (2013.01); B22F 2304/056 (2013.01); B22F 2304/058 (2013.01);
Abstract
A method for producing fine copper particles includes producing fine copper particles having a coating film containing cuprous oxide on a surface by heating copper or a copper compound in a reducing flame formed by a burner. The fine copper particles are produced by adjusting a mixing ratio between a combustible gas and a combustion supporting gas which form the reducing flame such that a volume ratio of CO/COis in a range of 1.5 to 2.4.