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. 15, 2002
Filed:
Feb. 23, 2001
Applicant:
Inventors:
Assignee:
Ando Electric Co., Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B23K 2/600 ;
U.S. Cl.
CPC ...
B23K 2/600 ;
Abstract
A laser beam from an engravement portion softening mechanism of an apparatus is condensed onto an engravement portion on an engravement surface of a workpiece for softening the engravement portion. When the hardness of the engravement portion is lowered, a pen tip of the apparatus is applied to the engravement portion. Thus, it is possible to reduce reliably wear and damage of the pen tip which results from engraving a hard workpiece, and to prolong the useful life of the pen tip , so that the durability and the reliability of the apparatus are improved.