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:
Sep. 13, 2022
Filed:
Dec. 07, 2017
Adeka Corporation, Tokyo, JP;
Yusuke Nuida, Tokyo, JP;
Hiroshi Morita, Tokyo, JP;
ADEKA CORPORATION, Tokyo, JP;
Abstract
A method of manufacturing copper powder according to the present invention includes: a first step of reducing copper particles in water by using at least one compound selected from the group consisting of potassium borohydride, sodiumborohydride, and lithium borohydride; after the first step, a second step of washing with water; a third step of washing copper powder obtained in the second step with at least one compound selected from the group consisting of ether compounds and alcohol compounds; and a fourth step of bringing the copper powder obtained in the third step into contact with an organic acid solution, in which at least one compound selected from the group consisting of ether compounds and alcohol compounds is used as a solvent.