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. 11, 2014
Filed:
Oct. 25, 2010
Toshio Yokota, Shizuoka, JP;
Yukio Yasuda, Hyogo, JP;
Hiroyuki Daido, Fukui, JP;
Hiromitsu Kiriyama, Kyoto, JP;
Hajime Okada, Kyoto, JP;
Masayuki Suzuki, Kyoto, JP;
Izuru Daito, Kyoto, JP;
Toshio Yokota, Shizuoka, JP;
Yukio Yasuda, Hyogo, JP;
Hiroyuki Daido, Fukui, JP;
Hiromitsu Kiriyama, Kyoto, JP;
Hajime Okada, Kyoto, JP;
Masayuki Suzuki, Kyoto, JP;
Izuru Daito, Kyoto, JP;
Ushio Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A high pressure discharge lamp has a sealing portion that is made of glass and a sealing metal piece. In a method of manufacturing the high pressure discharge lamp, the sealing metal piece is irradiated with laser beam whose pulse width is 1×10seconds or less, so as to carry out a surface treatment of the sealing metal piece. The sealing metal piece may have a groove that is 120 to 600 nm in depth and 450 to 1,200 nm in width.