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:
Dec. 09, 2014
Filed:
Dec. 04, 2009
Applicants:
Hajime Kuwabara, Tokyo, JP;
Kazuhiko Horioka, Kanagawa, JP;
Inventors:
Hajime Kuwabara, Tokyo, JP;
Kazuhiko Horioka, Kanagawa, JP;
Assignees:
IHI Corporation, Tokyo, JP;
Tokyo Institute of Technology, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 7/24 (2006.01); G21K 1/02 (2006.01); H05G 2/00 (2006.01);
U.S. Cl.
CPC ...
G21K 1/025 (2013.01); H05G 2/005 (2013.01); H05G 2/006 (2013.01); H05G 2/003 (2013.01);
Abstract
A plasma light source includes a pair of coaxial electrodesfacing each other, a radiation environment sustaining devicethat supplies a plasma medium into the insides of the coaxial electrodes and holds the coaxial electrodes at a temperature and a pressure suitable for plasma generation, and a voltage application devicethat applies a discharge voltage of an inverted polarity to each of the coaxial electrodes. Tubular dischargeis formed between the pair of coaxial electrodes and plasmais confined in an axial direction of the coaxial electrodes.