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. 08, 2000
Filed:
Feb. 20, 1998
Applicant:
Inventors:
Tomoyuki Seki, Nagaokakyo, JP;
Akira Mii, Ashiya, JP;
Assignee:
Matsushita Electronics Corporation, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313570 ; 313567 ; 313331 ; 313638 ;
Abstract
A single-tube high-watt metal halide lamp being characterized in that its fixture socket installation portions are formed at caps secured to a pair of sealing portions formed at both sides of a discharge tube, and the distance between the fixture socket installation portion and the sealing portion is set at 8.5 mm or less so as to dispose the molybdenum foil of the sealing portion close to a socket of a lighting fixture, whereby the lamp can reduce the temperatures at the ends of the sealing portions and can have a long service life.