Electric lamp and discharge devices – With gas or vapor – Envelope with particular structure
Reexamination Certificate
2006-02-10
2008-11-25
Truong, Bao Q (Department: 2875)
Electric lamp and discharge devices
With gas or vapor
Envelope with particular structure
C313S634000, C313S493000
Reexamination Certificate
active
07456576
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.
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patent: 2004/0150346 (2004-08-01), Machida
patent: 2006/0017366 (2006-01-01), Hendriks et al.
patent: 0602927 (1994-06-01), None
patent: 3-283335 (1991-12-01), None
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patent: 9-63742 (1997-03-01), None
patent: 2004-220808 (2004-08-01), None
patent: 2004-235017 (2004-08-01), None
Emori Chisato
Machida Kazuhiko
Takeuchi Kesayuki
Rankin , Hill & Clark LLP
Shinko Electric Industries Co. Ltd.
Truong Bao Q
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