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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 12533748 B1

PDFFull Text
Date of Patent:
Jan. 27, 2026

Filed:

Mar. 10, 2020

Laser welding device and laser welding method

Applicant:

Delta Kogyo Co., Ltd., Hiroshima, JP;

Inventors:

Yukio Yamamoto, Hiroshima, JP;

Tomohito Tsudo, Hiroshima, JP;

Seiya Takahashi, Hiroshima, JP;

Chieko Hashizaka, Hiroshima, JP;

Assignee:

DELTA KOGYO CO., LTD., Hiroshima, JP;

Attorney:

Studebaker Brackett PLLC

Primary Examiner:

Steven W Crabb

Assistant Examiner:

Fahmida undefined Ferdousi

Int. Cl.
CPC ...
B23K 26/073 (2006.01); B23K 26/082 (2014.01); B23K 26/22 (2006.01); B23K 26/24 (2014.01); B23K 26/242 (2014.01); B23K 26/244 (2014.01);
U.S. Cl.
CPC ...
B23K 26/073 (2013.01); B23K 26/082 (2015.10); B23K 26/22 (2013.01); B23K 26/24 (2013.01); B23K 26/242 (2015.10); B23K 26/244 (2015.10);
Abstract

A laser welding method includes a laser beam irradiation step of oscillating a laser beam and condensing the laser beam on a welding portion, and a scanning step of scanning a spot of the laser beam. In the execution of laser welding, while oscillating the laser beam, a screw portion having a dot shape in a plan view is formed in which a metal member is melted by scanning of the spot so as to circle around a predetermined position, and while the metal member in the screw portion is in a molten state, a linear portion being linear in a plan view and continuous with the screw portion is formed in which a metal member is melted by scanning of the spot so as to be separated from the screw portion.

Find Patent Forward Citations

Yamamoto, Yukio. (2026). Laser welding device and laser welding method (U.S. Patent No. 12533748). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12533748

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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