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. 05, 1996
Filed:
Aug. 05, 1994
Applicant:
Inventor:
Yoshinobu Hoshi, Tsukuba, JP;
Assignees:
Agency of Industrial Science & Technology, Tokyo, JP;
Ministry of International Trade & Industry, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B23H / ;
U.S. Cl.
CPC ...
219 6917 ; 219 6911 ;
Abstract
A laser guided discharge machining apparatus includes a vacuum chamber in which pressure can be reduced to 3000 Pa or below and in which a workpiece is accommodated as well as a discharge electrode that emits charged particles. A laser beam is used to guide the discharge to thereby enable parts of the workpiece to be discharge machined which are not in a direct line from the discharge electrode.