US 12,247,276 B2
Copper powder, method for manufacturing copper powder, and method for manufacturing solid shaped object
Yosuke Endo, Ibaraki (JP); Hiroyoshi Yamamoto, Ibaraki (JP); Ryo Suzuki, Tokyo (JP); and Kenji Sato, Tokyo (JP)
Assigned to JX Advanced Metals Corporation, Tokyo (JP)
Appl. No. 16/080,887
Filed by JX Nippon Mining & Metals Corporation, Tokyo (JP)
PCT Filed Jan. 12, 2018, PCT No. PCT/JP2018/000688
§ 371(c)(1), (2) Date Aug. 29, 2018,
PCT Pub. No. WO2018/193671, PCT Pub. Date Oct. 25, 2018.
Claims priority of application No. 2017-084829 (JP), filed on Apr. 21, 2017.
Prior Publication US 2021/0178465 A1, Jun. 17, 2021
Int. Cl. B22F 1/16 (2022.01); B22F 1/00 (2022.01); B22F 1/05 (2022.01); B22F 7/02 (2006.01); B22F 9/08 (2006.01); B22F 10/28 (2021.01); B22F 10/34 (2021.01); B33Y 70/00 (2020.01); B33Y 80/00 (2015.01); C22C 9/00 (2006.01); B22F 12/41 (2021.01)
CPC C22C 9/00 (2013.01) [B22F 1/00 (2013.01); B22F 1/05 (2022.01); B22F 1/16 (2022.01); B22F 7/02 (2013.01); B22F 10/28 (2021.01); B22F 10/34 (2021.01); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12); B22F 2009/0844 (2013.01); B22F 12/41 (2021.01); B22F 2201/03 (2013.01); B22F 2301/10 (2013.01); B22F 2998/10 (2013.01)] 18 Claims
 
1. A copper powder consisting of copper and inevitable impurities, the copper powder having an outer surface, and an oxide coating formed on the entire outer surface of the powder, and 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 percentage (%) for light having a wavelength λ=1060 nm/an oxygen concentration (wtppm))*100, of 3.0 or more.