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:
Aug. 17, 2010
Filed:
Feb. 20, 2008
Applicants:
Kaoru Matsumura, Ebina, JP;
Fumiaki Kimura, Ebina, JP;
Inventors:
Kaoru Matsumura, Ebina, JP;
Fumiaki Kimura, Ebina, JP;
Assignee:
Hitachi Via Mechanics, Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B 11/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A laser machining apparatus is capable of improving workpiece machining precision. The laser machining apparatus has a movable table for supporting a workpiece to be machined, and a camera for detecting the position of the workpiece by reflection light from an alignment mark formed through the workpiece. The apparatus also includes a jig plate provided between the table and the workpiece, and has light-receiving holes that overlap with the alignment mark (through-hole) and that are larger than the alignment mark (through hole).