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.:

US 6819047 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 16, 2004

Filed:

Jan. 06, 2003
Applicant:
Inventor:

Norikazu Niimi, Kasugai, JP;

Assignee:

NGK Insulators, Ltd., Nagoya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 1/718 ;
U.S. Cl.
CPC ...
H01J 1/718 ;
Abstract

A ceramic discharge vessel having end portions and an inner space formed therein is filled with an ionizable light emitting substance and a starter gas. The end portion has an inner wall surface facing an opening formed in the end portion. A hollow portion is formed in the conductive member. The conductive member is inserted into the opening of the end portion of the vessel. A joining layer joins the inner wall surface of the end portion and the outer surface of the conductive member. A recess facing the opening is formed in the end portion, and the recess extends circumferentially with respect to the central axis “X” of the vessel. When the conductive member is inserted into the opening of the end portion of the vessel and joined, the adherence or residue of joining material onto the end face or inner surface of the conductive member may be prevented.


Find Patent Forward Citations

Niimi, Norikazu. (2004). High pressure discharge lamps, and assemblies and discharge vessels therefor (U.S. Patent No. 6819047). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6819047

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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