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. 20, 2001
Filed:
May. 17, 1999
Haruki Sasaki, Chiba-ken, JP;
Kouji Kawamura, Chiba-ken, JP;
Miyachi Technos Corporation, Chiba-Ken, JP;
Abstract
A laser processing apparatus in which a laser beam oscillatory output from a laser oscillation unit is transmitted through an optical fiber to a remote laser processing site, where the laser processing apparatus has an optical fiber setting apparatus for finding a supply power upper limit for the type of fiber (including a step index (SI) fiber and a graded index (GI) fiber) used and the diameter of the optical fiber, and a laser power supply unit for supplying the laser oscillation unit with an electric power for laser oscillation. A supply power mean value arithmetic apparatus detects the electric power supplied to the laser oscillation unit to figure out a supply power mean value at a certain interval, and the laser power supply unit is interrupted when the supply power mean value exceeds the supply power upper limit.