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:
Oct. 05, 2010
Filed:
Dec. 02, 2005
Takahiro Nagashima, Chiba-ken, JP;
Junpei Kase, Chiba-ken, JP;
Takahiro Nagashima, Chiba-ken, JP;
Junpei Kase, Chiba-ken, JP;
Miyachi Corporation, Chiba-ken, JP;
Abstract
A YAG pulse laser oscillatoroscillates/outputs pulse width-variable YAG fundamental pulse laser light LB, and a YAG pulse laser oscillatoroscillates/outputs pulse width-variable YAG second harmonic pulse laser light SHG. An emission unitsuperposes the pulse laser light LB and the pulse laser light SHG on the same optical axis and focuses, and irradiates a welding point K on welding pieces (Wand W) with, the pulse laser light LB and the pulse laser light SHG. A control unitcontrols the laser oscillation operation of the laser oscillatorsandso that the point in time when the laser output of the YAG second harmonic pulse laser light SHG reaches its peak is slightly earlier than the point in time when the laser output of the YAG fundamental pulse laser light LB reaches its peak.