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:
Mar. 11, 2025
Filed:
Jan. 12, 2018
Jx Nippon Mining & Metals Corporation, Tokyo, JP;
Yosuke Endo, Ibaraki, JP;
Hiroyoshi Yamamoto, Ibaraki, JP;
Ryo Suzuki, Tokyo, JP;
Kenji Sato, Tokyo, JP;
JX Advanced Metals Corporation, Tokyo, JP;
Abstract
The present invention provides a copper powder which is capable of fusion bonding with a low energy laser by enabling heat to be efficiently inputted with a high absorption rate for laser irradiation and has high convenience in handling, and provides a method for manufacturing the copper powder. One embodiment of the present invention is a copper powder, having an absorption rate for light having a wavelength λ=1060 nm of 18.9% to 65.0%, and an index, which is indicated by (the absorption rate for light having a wavelength λ=1060 nm)/(an oxygen concentration), of 3.0 or more.