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. 10, 2000
Filed:
Jul. 22, 1999
Applicant:
Inventors:
Tae Kyung Yoo, Kyonggi-do, KR;
Jun Ho Jang, Kyonggi-do, KR;
Assignee:
LG Electronics Inc., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
2191216 ; 21912169 ; 21912172 ; 21912185 ;
Abstract
Transparent media having high hardness and poor light absorption is cut or scribed with characters or figures by a laser beam. The method includes forming a support of a medium which is a good absorber of a laser beam, and placing the transparent medium on the support, and focusing the laser beam onto the support through the transparent medium while the transparent medium and the laser beam are moved relative to each other. A flame is generated between the support and the transparent medium to machine the transport medium, allowing it to be cut or scribed with characters or figures.