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:
Apr. 29, 2025

Filed:

Dec. 03, 2021
Applicant:

Microwave Chemical Co., Ltd., Osaka, JP;

Inventors:

Tomohisa Yamauchi, Osaka, JP;

Kei Sakamoto, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01B 1/22 (2005.12); B22F 1/00 (2021.12); B22F 1/054 (2021.12); B22F 1/16 (2021.12); B22F 1/17 (2021.12); B22F 9/24 (2005.12); C22C 1/04 (2022.12);
U.S. Cl.
CPC ...
B22F 9/24 (2012.12); B22F 1/00 (2012.12); B22F 1/0547 (2021.12); B22F 1/16 (2021.12); B22F 1/17 (2021.12); C22C 1/0466 (2012.12); H01B 1/22 (2012.12); Y10S 977/762 (2012.12);
Abstract

In order to provide a method for producing silver nanowires in which a local maximum of optical absorption in the plasmon absorption band can be shifted toward the short wavelength side without making the wire diameter smaller, a method for producing silver nanowires includes a step of heating a mixed liquid of a dispersion of silver nanowires and metal ions of a transition metal that is different from silver, and reducing the metal ions, thereby intermittently precipitating clumps of the transition metal on a surface of the silver nanowires. The thus produced silver nanowires have metal clumps intermittently along the length direction, and a local maximum of optical absorption in the plasmon absorption band of the silver nanowires has been shifted toward the short wavelength side.


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