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. 25, 2008
Filed:
Feb. 10, 2006
Applicants:
Chisato Emori, Nagano, JP;
Kesayuki Takeuchi, Nagano, JP;
Kazuhiko Machida, Nagano, JP;
Inventors:
Assignee:
Shinko Electric Industries Co., Ltd., Nagano-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 61/35 (2006.01);
U.S. Cl.
CPC ...
Abstract
A discharge tube comprises a pair of discharge electrodes opposed to each other with a discharge space in-between, an airtight cylinder in which the discharge space is formed, the pair of the electrodes respectively being mounted on both ends of the airtight cylinder, and a coating film which is resistant to water permeation, and formed on a surface of the airtight cylinder. With the discharge tube, it is possible to perform a stable discharge having a good insulating property between the discharge electrodes even when the external environment changes.