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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.:

US 10384314 B1

PDFFull Text
Date of Patent:
Aug. 20, 2019

Filed:

Mar. 23, 2016

Metal particle and method for producing the same, covered metal particle, and metal powder

Applicant:

Hitachi Metals, Ltd, Minato-ku, Tokyo, JP;

Inventor:

Motoki Wakano, Suita, JP;

Assignee:

HITACHI METALS, LTD., Tokyo, JP;

Attorneys:

Nixon Peabody LLP

Jeffrey L. Costellia

Primary Examiner:

Kiley S Stoner

Int. Cl.
CPC ...
B23K 35/00 (2006.01); B23K 35/30 (2006.01); B22F 1/02 (2006.01); B22F 9/08 (2006.01); C22C 9/00 (2006.01); B23K 35/02 (2006.01); C25D 3/12 (2006.01); C25D 3/60 (2006.01); C25D 5/34 (2006.01); C25D 5/12 (2006.01); C25D 7/00 (2006.01); C25D 17/16 (2006.01); C23C 18/54 (2006.01);
U.S. Cl.
CPC ...
B23K 35/302 (2013.01); B22F 1/02 (2013.01); B22F 1/025 (2013.01); B22F 9/08 (2013.01); B22F 9/082 (2013.01); B23K 35/0244 (2013.01); C22C 9/00 (2013.01); C23C 18/54 (2013.01); C25D 3/12 (2013.01); C25D 3/60 (2013.01); C25D 5/12 (2013.01); C25D 5/34 (2013.01); C25D 7/00 (2013.01); C25D 17/16 (2013.01); B22F 2301/10 (2013.01);
Abstract

A metal particle having a particle diameter of 10 μm or more and 1000 μm or less and includes Cu and trace elements and a total mass content of P and S, among other trace elements, is 3 ppm or more and 30 ppm or less. A method for producing a metal particle including producing a molten metal material by melting a metal material in a crucible, wherein Cu as determined in GDMS analysis is over 99.995% and a total of P and S is 3 ppm or more and 30 ppm or less; applying a pressure of 0.05 MPa or more and 1.0 MPa or less to drip the molten metal material through an orifice, thereby producing a molten metal droplet; and rapidly solidifying the molten metal droplet using an inert gas whose oxygen concentration is 1000 ppm or less.

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