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:
May. 21, 2013
Filed:
May. 29, 2009
Toshikazu Sugimura, Shinagawa-ku, JP;
Tatsuya Takahashi, Minato-ku, JP;
Isao Kawanishi, Minato-ku, JP;
Nobuki Mori, Minato-ku, JP;
Akikazu Tanaka, Minato-ku, JP;
Toshikazu Sugimura, Shinagawa-ku, JP;
Tatsuya Takahashi, Minato-ku, JP;
Isao Kawanishi, Minato-ku, JP;
Nobuki Mori, Minato-ku, JP;
Akikazu Tanaka, Minato-ku, JP;
NEC Lighting, Ltd., Tokyo, JP;
Sumitomo Metal Mining Co., Ltd., Tokyo, JP;
Abstract
Provided is a fluorescent lamp electrode, having excellent sputtering resistance and able to retain excellent dark-start characteristics over a long period of time when used as an electrode in a cold cathode fluorescent lamp, and which can be produced inexpensively. A fluorescent lamp of this invention has a prolonged life resulting from the use of said electrode. Said electrode is made by dispersing in a nickel or nickel alloy base one or more rare earth metals selected from among lanthanum, cerium, yttrium, samarium, praseodymium, niobium, europium and gadolinium in the form of a precipitated boride phase.