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.

Date of Patent:
Jul. 30, 2024

Filed:

Aug. 16, 2023
Applicant:

Dowa Electronics Materials Co., Ltd., Tokyo, JP;

Inventors:

Masanori Fujii, Tokyo, JP;

Yuma Higashi, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F 9/24 (2006.01); B22F 1/00 (2022.01); B22F 1/05 (2022.01); B22F 1/07 (2022.01); B22F 1/107 (2022.01); H01B 1/22 (2006.01);
U.S. Cl.
CPC ...
H01B 1/22 (2013.01); B22F 1/00 (2013.01); B22F 1/05 (2022.01); B22F 1/07 (2022.01); B22F 1/107 (2022.01); B22F 9/24 (2013.01); B22F 2301/255 (2013.01);
Abstract

Provided is silver powder including silver particles having closed pores inside the particles, wherein when cross sections of the silver particles are observed at a magnification of 10,000, an average of numbers of the pores having Heywood diameters of 200 nm or greater relative to an area of the cross sections is 0.01 pores/μmor less, and wherein when the cross sections of the silver particles are observed at a magnification of 40,000, an average of numbers of the pores having Heywood diameters of 10 nm or greater but less than 30 nm relative to the area of the cross sections is 25 pores/μmor more.


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