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. 18, 2014
Filed:
Mar. 31, 2010
Kikuo Okuyama, Higashi-hiroshima, JP;
Ferry Iskandar, Higashi-hiroshima, JP;
Yutaka Kaihatsu, Higashi-hiroshima, JP;
Jun Takai, Kurashiki, JP;
Hideharu Iwasaki, Kurashiki, JP;
Kikuo Okuyama, Higashi-hiroshima, JP;
Ferry Iskandar, Higashi-hiroshima, JP;
Yutaka Kaihatsu, Higashi-hiroshima, JP;
Jun Takai, Kurashiki, JP;
Hideharu Iwasaki, Kurashiki, JP;
Hiroshima University, Higashi-Hiroshima-shi, JP;
Kuraray Co., Ltd., Kurashiki-shi, JP;
Abstract
The present invention provides an Al—C—O based phosphor using neither heavy metal nor rare metal and composed of elements with high environmental compatibility and excellent economic efficiency, wherein the wavelength of the peak intensity of the emission spectrum can be changed without changing the basic composition. An aluminum oxide phosphor which comprises aluminum (Al), carbon (C), and oxygen (O) respectively in an amount of 30 mol %<Al<60 mol %, 0 mol %<C<10 mol %, 30 mol %<O<70 mol % is provided. The above problem is solved in the production of an Al—C—O phosphor comprising aluminum (Al), carbon (C), and oxygen (O) by heating and firing a mixture comprising an aluminum-containing compound and a coordinatable oxygen-containing compound.