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:
Jul. 21, 2026
Filed:
Feb. 08, 2021
Delta Kogyo Co., Ltd., Hiroshima, JP;
Yukio Yamamoto, Hiroshima, JP;
Tomohito Tsudo, Hiroshima, JP;
Masashi Hiraoka, Hiroshima, JP;
Seiya Takahashi, Hiroshima, JP;
DELTA KOGYO CO., LTD., Hiroshima, JP;
Abstract
A laser welding method is a method for joining a first member in the shape of a plate and made of a metal material to a second member made of a metal material by laser welding. The laser welding method includes an arranging step and a laser beam irradiation step. In the arranging step, the second member is brought into contact with or brought close to one main surface of the first member. In the laser beam irradiation step, the other main surface of the first member is irradiated with the laser beam, the other surface being a main surface opposite to the one main surface of the first member. In the laser beam irradiation step, the first member and the second member are melted to form a weld portion having a substantially circular or oval shape in a plan view and to form a fillet on a joined portion between the first member and the second member.