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. 29, 1996
Filed:
Jan. 14, 1994
Applicant:
Inventors:
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 19 ; 372 38 ;
Abstract
A laser processing apparatus which makes it possible to select a laser beam mode always optimally suited to processing of a workpiece on the basis of a change in the focusing characteristic of each mode and the amount of movement of the beam's focal point with respect to a change in a laser output value. The laser processing apparatus includes a laser oscillator capable of changing the beam mode of its laser beam, and a processing table, all controlled by a controller which operates to change the beam mode of the oscillator in correspondence with a laser output during processing.