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:
Jan. 31, 2012
Filed:
Sep. 17, 2008
Yumi Fukuda, Tokyo, JP;
Jun-ichi Tatami, Yokohama, JP;
Hironori Asai, Yokohama, JP;
Katsutoshi Komeya, Naka-gun, JP;
Naotoshi Matsuda, Chigasaki, JP;
Toru Wakihara, Yokohama, JP;
Keiko Albessard, Yokohama, JP;
Shoko Abe, Inagi, JP;
Yumi Fukuda, Tokyo, JP;
Jun-ichi Tatami, Yokohama, JP;
Hironori Asai, Yokohama, JP;
Katsutoshi Komeya, Naka-gun, JP;
Naotoshi Matsuda, Chigasaki, JP;
Toru Wakihara, Yokohama, JP;
Keiko Albessard, Yokohama, JP;
Shoko Abe, Inagi, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A luminescent material is provided, which includes a carbide oxynitride-based compound having a composition represented by formula 1:(MR)AlSiONC  formula 1wherein M is at least one metal element excluding Si and Al, and R is a luminescent central element. w, u, x, v, z, t and y satisfy following relationships:0.001<w<0.5; 0.66≦u≦1; 0.07≦x≦0.73;0.06≦v≦0.84; 0.04≦z≦0.44; 2.7≦t≦3.1; and0.019≦y≦0.13.