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:
Apr. 01, 2008
Filed:
Nov. 30, 2004
Applicants:
Toshihiko Ishigami, Kawasaki, JP;
Mikio Matsuda, Tokyo, JP;
Toshio Hiruta, Hiratsuka, JP;
Inventors:
Assignee:
Harison Toshiba Lighting Corp., Imabari-shi, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01J 61/12 (2006.01); H01J 61/18 (2006.01); H01J 17/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A metal halide lamp includes a refractory, light-transmitting hermetic vessel, a pair of electrodes sealed in thehermetic vessel, a discharge medium including a halide and a rare gas, and metal storing means storing at least one selected from the group consisting of potassium (K), rubidium (Rb) and cesium (Cs), the metal storing means being heated during lighting and gradually discharging at least one metal in the hermetic vessel.