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:
Sep. 22, 2026
Filed:
Oct. 09, 2020
Applicant:
Furukawa Electric Co., Ltd., Tokyo, JP;
Inventors:
Tomomichi Yasuoka, Tokyo, JP;
Takashi Kayahara, Tokyo, JP;
Toshiaki Sakai, Tokyo, JP;
Ryosuke Nishii, Tokyo, JP;
Takashi Shigematsu, Tokyo, JP;
Assignee:
FURUKAWA ELECTRIC CO., LTD., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B23K 26/06 (2014.01); B23K 26/064 (2014.01); B23K 26/067 (2006.01); B23K 26/08 (2014.01); B23K 26/24 (2014.01); B23K 103/12 (2006.01);
U.S. Cl.
CPC ...
B23K 26/0608 (2013.01); B23K 26/0648 (2013.01); B23K 26/0676 (2013.01); B23K 26/08 (2013.01); B23K 26/24 (2013.01); B23K 2103/12 (2018.08);
Abstract
A welding method includes: arranging a workpiece containing copper in a region to be irradiated with laser light; and irradiating the workpiece with the laser light to melt and weld an irradiated portion of the workpiece. Further, the laser light is formed of a main beam and a plurality of sub beams, and a ratio of power of the main beam to total power of the plurality of sub beams is 72:1 to 3:7.