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:
Mar. 22, 1983
Filed:
May. 28, 1981
Applicant:
Inventors:
Katsuhiro Minamida, Yokohama, JP;
Shigehiro Yamaguchi, Fujisawa, JP;
Assignee:
Nippon Steel Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
2191 / ; 2191 / ; 2191 / ; 2191 / ; 2191 / ;
Abstract
A steel material is treated by laser beams, in such a manner that the laser beams and a gas jet are concurrently projected to a working point of the steel material to produce a plasma around the working point and another gas jet is ejected to the working point at an oblique angle to the projecting direction of the laser beams so as to press the plasma against the steel material surface, whereby the form of the plasma can be controlled by changing the oblique angle of the another gas jet ejection.