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. 02, 2010
Filed:
Jun. 01, 2007
Toyohiko Kumada, Himeji, JP;
Toyohiko Kumada, Himeji, JP;
Ushiodenki Kabushiki Kaisha, Tokyo, JP;
Abstract
An ultra high pressure mercury lamp having a light emitting part, a pair of electrodes; hermetically sealed portions; part of the electrodes and metal foils installed in the hermetically sealed portions and connected to the base parts of the electrodes; and outer leads connected to the base parts of the metal foils. The metal foils have a region with a small width which is groove-shaped and with which the electrodes are connected, and a wide region which borders the region with a small width, and which has an Ω-shaped end region which borders the groove of the region with a small width, in which an end groove is formed, and which extends in the lengthwise direction, a base-side Ω-region which is connected to the outer lead, in which a base-side groove is formed, and a middle, flat region which extends between the end Ω-region and the base-side Ω-region.