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. 08, 2025
Filed:
Sep. 15, 2021
Applicant:
Mitsui Mining & Smelting Co., Ltd., Tokyo, JP;
Inventor:
Kentaro Ochi, Takehara, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B 1/22 (2006.01); B22F 1/054 (2022.01); B22F 1/10 (2022.01); C08K 3/08 (2006.01); C25C 1/20 (2006.01);
U.S. Cl.
CPC ...
H01B 1/22 (2013.01); B22F 1/0553 (2022.01); B22F 1/056 (2022.01); B22F 1/10 (2022.01); C08K 3/08 (2013.01); C25C 1/20 (2013.01); B22F 2301/255 (2013.01); B22F 2304/054 (2013.01); B22F 2999/00 (2013.01); C08K 2003/0806 (2013.01); C08K 2201/001 (2013.01); C08K 2201/003 (2013.01); C08K 2201/011 (2013.01);
Abstract
A silver powder containing dendrite silver particles is provided. The dendrite silver particles are in a dendrite shape having one trunk and a plurality of branches branching from the trunk. The thickness of the trunk of the dendrite silver particles is from 10 to 280 nm. The number of the branches per length of the trunk is from 6 to 30 branches/μm. The percentage by number of the dendrite silver particles in the whole of silver particles is 50 N % or more. This silver powder is produced by reducing silver ions through electrolysis of an electrolyte solution containing silver ions and hydantoin or a derivative thereof.