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:
Nov. 21, 2017
Filed:
Sep. 13, 2012
Applicants:
Akihiko Sugiyama, Kanagawa, JP;
Hiroaki Ishiguro, Kanagawa, JP;
Inventors:
Akihiko Sugiyama, Kanagawa, JP;
Hiroaki Ishiguro, Kanagawa, JP;
Assignee:
AMADA COMPANY, LIMITED, Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 26/073 (2006.01); B23K 26/38 (2014.01); B23K 26/08 (2014.01);
U.S. Cl.
CPC ...
B23K 26/0734 (2013.01); B23K 26/0869 (2013.01); B23K 26/38 (2013.01);
Abstract
A laser cutting method and a laser cutting apparatus cut a metallic work with a laser beam of a one-micrometer waveband. The method and apparatus carry out the laser cutting of the work with a ring beam RB passed through a focus position of a condenser lensand having inner and outer diameters that tend to expand. The outer diameter of the ring beam is in a range of 300 μm (micrometers) to 600 μm, an inner diameter ratio of the same is in a range of 30 % to 70 %, and a focal depth of the condenser lens is in a range of 2 mm to 5 mm.