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:
Oct. 11, 2022
Filed:
Oct. 04, 2018
Applicant:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Inventors:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F 9/24 (2006.01); C09D 11/52 (2014.01); B82Y 40/00 (2011.01);
U.S. Cl.
CPC ...
B22F 9/24 (2013.01); C09D 11/52 (2013.01); B82Y 40/00 (2013.01);
Abstract
A method of manufacturing a copper nano-ink includes: a step of preparing a copper nanoparticle aqueous dispersion liquid including copper nanoparticles and anions; and a step of storing the copper nanoparticle aqueous dispersion liquid at 5° C. or less after the step of preparing, wherein in the step of storing, a copper ion concentration of the copper nanoparticle aqueous dispersion liquid is controlled to be greater than or equal to 0.1 g/L and less than or equal to 1.0 g/L and an anion concentration is controlled to be greater than or equal to 0.5 g/L and less than or equal to 8.0 g/L.