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:
Apr. 12, 2011
Filed:
Aug. 22, 2007
Applicants:
Kunio Arai, Ebina, JP;
Yasuhiko Kita, Ebina, JP;
Yasushi Ito, Ebina, JP;
Inventors:
Assignee:
Hitachi Via Mechanics, Ltd., Ebina-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 26/06 (2006.01); B23K 26/073 (2006.01);
U.S. Cl.
CPC ...
Abstract
A laser machining method and a laser machining apparatus by which holes excelling in form accuracy can be machined efficiently are to be provided. A first cylindrical lens and/or a second cylindrical lens to correct any deformation of reflective face of a first mirror and/or a second mirror is arranged on an optical axis of a laser beam, and converging positions of the laser beam for an X-component and for a Y-component are coincident with a point on the optical axis.