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. 12, 2008
Filed:
Mar. 28, 2003
Ryo Minamihata, Hyogo, JP;
Kazuhisa Tanaka, Osaka, JP;
Tsuyoshi Nagakura, Osaka, JP;
Yoshitaka Kurimoto, Osaka, JP;
Makoto Horiuchi, Nara, JP;
Ryo Minamihata, Hyogo, JP;
Kazuhisa Tanaka, Osaka, JP;
Tsuyoshi Nagakura, Osaka, JP;
Yoshitaka Kurimoto, Osaka, JP;
Makoto Horiuchi, Nara, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A discharge lampcomprises a luminous bulbin which a luminous materialis encapsulated and a pair of electrodesare arranged to be opposed to each other, and sealing parts () that are formed at both ends of the luminous bulband in which metal foil structureselectrically connected to the pair of electrodes, respectively, are sealed. At least one of the metal foil structuresis composed of a first metal foil, a second metal foiland a metal barcoupling both of them. At least one sealing partof the sealing parts includes a cavityaround the position where in the sealing part the metal baris located, and at least a rare gas is encapsulated in the cavity