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:
Jan. 06, 2026
Filed:
Jan. 26, 2023
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A method of detecting center coordinates of a spot welding mark includes: a linear laser light emitting step of emitting a plurality of linear laser light components with a linear irradiation trace on a spot welding mark by emitting laser light through continuous output oscillation; a waveform acquiring step of acquiring a waveform of an intensity of return light which is light generated from a processing point; an outer edge position coordinates deriving step of deriving position coordinates of three or more points on an outer edge of the spot welding mark from a peak position of the intensity of the waveform of the return light; and a center coordinates calculating step of calculating center coordinates of the spot welding mark from the position coordinates of the three or more points on the outer edge derived in the outer edge position coordinates deriving step.