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:
Aug. 12, 2025
Filed:
Dec. 01, 2022
Furukawa Electric Co., Ltd., Tokyo, JP;
Nobuyasu Matsumoto, Tokyo, JP;
Fumika Nishino, Tokyo, JP;
Masamitsu Kaneko, Tokyo, JP;
Kazuyuki Umeno, Tokyo, JP;
Jun Terada, Tokyo, JP;
Daeyoul Yoon, Tokyo, JP;
Tomomichi Yasuoka, Tokyo, JP;
Sayo Suga, Tokyo, JP;
Toshiaki Sakai, Tokyo, JP;
FURUKAWA ELECTRIC CO., LTD., Tokyo, JP;
Abstract
A welding method includes: irradiating a plurality of metal foils stacked on a first surface of a metal member in a first direction with laser light to weld the metal member and the plurality of metal foils to each other, the laser light including first laser light having a wavelength of 800 [nm] or more and 1200 [nm] or less and second laser light having a wavelength of 550 [nm] or less, a second surface of a metal foil farthest from the metal member in the first direction among the plurality of metal foils, on a side opposite to the metal member, being irradiated with the laser light.