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:
Jun. 23, 2026
Filed:
Mar. 25, 2022
Applicant:
A.l.m.t. Corp., Tokyo, JP;
Inventor:
Naoya Matsuta, Toyama, JP;
Assignee:
A.L.M.T. Corp., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B 15/00 (2006.01); B23K 20/02 (2006.01); B32B 15/01 (2006.01); B32B 15/20 (2006.01);
U.S. Cl.
CPC ...
B32B 15/01 (2013.01); B23K 20/023 (2013.01); B32B 15/20 (2013.01);
Abstract
A composite material includes: a first member containing tungsten as a primary component; a second member containing copper as a primary component, the second member being joined to the first member; and a metal containing at least one metal selected from a group consisting of titanium, zirconium, and hafnium, the metal being present in the second member, wherein a concentration of the metal is more than 0 atomic % and less than or equal to 5.0 atomic % at a location of 5 μm from a joining interface between the first member and the second member toward the second member side.