US Patent 7842902 Laser processing method and laser beam processing machine
Patent 7842902 was granted and assigned to Disco Corporation on November, 2010 by the United States Patent and Trademark Office.
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Patent abstract
A method of carrying out laser processing along processing lines having linear portions and curved portions formed on a workpiece by using a laser beam processing machine comprising a laser beam application means for applying a laser beam to the workpiece held on a chuck table which comprises a condenser for converging a laser beam, having a focal spot changing means for changing the shape of a focal spot between an elliptic spot and a circular spot, comprising the steps of:
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Patent Inventor Names
Hiroshi Morikazu0
Masahiro Murata0
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US Patent 07842902 Laser processing method and laser beam processing machine US Patent 7842902 Laser processing method and laser beam processing machine
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Patent Number
078429020
Patent Number
78429020
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Current Assignee
Patent Jurisdiction
Patent Number
078429020
Date of Patent
November 30, 2010
0Patent Application Number
118982140
Date Filed
September 10, 2007
0Official Website
Patent Primary Examiner
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US Patent 07842902 Laser processing method and laser beam processing machine
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07842902
Date of patent
November 30, 2010
Patent application number
11898214
Date Filed
September 10, 2007
Patent primary examiner
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