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:
Mar. 25, 2025
Filed:
Jul. 31, 2019
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Kazuhiro Yoshida, Tokyo, JP;
Yoshinao Komatsu, Tokyo, JP;
Saneyuki Goya, Tokyo, JP;
Akiko Inoue, Tokyo, JP;
Yasuyuki Fujiya, Tokyo, JP;
Ryuichi Narita, Tokyo, JP;
Masahiko Shimizu, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
This laser processing device is provided with a laser radiating unit which forms a processed groove extending in a scanning direction on a workpiece, by subjecting the workpiece to laser processing while scanning the surface of the workpiece, and a nozzle portion which has a plurality of ejection holes arranged side by side in the scanning direction, and which ejects a gas toward the processed groove from each of the ejection holes. With this laser processing device, since a plume is eliminated by ejecting gas into the processed groove by means of the nozzle portion, the formation of a heat affected layer by the plume can be suppressed to an even greater extent.