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:
Feb. 01, 2005
Filed:
Dec. 04, 2003
Norikazu Niimi, Kasugai, JP;
Norikazu Niimi, Kasugai, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A high pressure discharge lamp including a ceramic discharge tube defining an inner space and having an opening formed within an end portion thereof, an electrode system provided within the inner space, a sealing member including a ceramic or a cermet with a through hole formed therein, at least a part of the sealing member being fixed within the opening of the ceramic discharge tube, and a metal member. A joining portion is interposed between the metal and sealing members, and includes a main phase contacting the metal member and an intermediate ceramic layer contacting the sealing member and existing between the sealing member and the main phase. The main phase includes a porous bone structure with open pores, is made of a sintered product of metal powder, and includes a ceramic phase impregnated into the open pores thereof.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile