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. 10, 2015
Filed:
Mar. 04, 2011
Jun Sakaguchi, Osaka, JP;
Yoshiki Kitahara, Osaka, JP;
Katsuhiro Ono, Osaka, JP;
Kazunori Ohta, Osaka, JP;
Jun Sakaguchi, Osaka, JP;
Yoshiki Kitahara, Osaka, JP;
Katsuhiro Ono, Osaka, JP;
Kazunori Ohta, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
The present invention aims to prevent breakage of a sealing part and an electrode of a high pressure discharge lamp, and provides an electrodeused for a discharge lamp and having a rod-shaped part, one end of the rod-shaped partto be sealed by a sealing part of an arc tube of the discharge lamp, the other end of the rod-shaped partto be in a discharge space in the arc tube, wherein the rod-shaped parthas a rough surface that is composed of a plurality of types of crystal grains each having a different surface condition due to differences in crystal orientation.