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:
Nov. 18, 2003
Filed:
Jul. 02, 2001
Applicant:
Inventor:
Kazunobu Kojima, Gamagori, JP;
Assignee:
Nidek Co., Ltd., Gamagori, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S 3/22 ; H01S 3/223 ;
U.S. Cl.
CPC ...
H01S 3/22 ; H01S 3/223 ;
Abstract
A gas laser apparatus includes a chamber in which laser medium gas is sealingly filled; a pair of main discharge electrodes arranged opposite to each other in the chamber; and a fan disposed in the chamber; wherein the chamber has an inner wall of a substantially elliptic shape in a plane perpendicular to a lengthwise direction of the chamber, and a part of the inner wall being between the fan and the main discharge electrodes serves as a guide for guiding the gas made to flow by the fan toward the main discharge electrodes.