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:
Nov. 15, 2005
Filed:
Dec. 05, 2002
Shinichiro Hataoka, Osaka, JP;
Kiyoshi Takahashi, Kyoto, JP;
Yuriko Kaneko, Nara, JP;
Makoto Horiuchi, Nara, JP;
Makoto Kai, Osaka, JP;
Tsuyoshi Ichibakase, Osaka, JP;
Tomoyuki Seki, Osaka, JP;
Shinichiro Hataoka, Osaka, JP;
Kiyoshi Takahashi, Kyoto, JP;
Yuriko Kaneko, Nara, JP;
Makoto Horiuchi, Nara, JP;
Makoto Kai, Osaka, JP;
Tsuyoshi Ichibakase, Osaka, JP;
Tomoyuki Seki, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A high pressure discharge lamp includes a luminous bulb enclosing a luminous substance therein; and a sealing portion for retaining airtightness of the luminous bulb. The sealing portion has a first glass portion extending from the luminous bulb and a second glass portion provided at least in a portion inside the first glass portion, and the sealing portion has a portion to which a compressive stress is applied.