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:
Sep. 13, 2011
Filed:
Mar. 18, 2009
Kenji Toda, Niigata, JP;
Kazuyoshi Uematsu, Niigata, JP;
Mineo Sato, Niigata, JP;
Tetsu Umeda, Ushiku, JP;
Yutaka Ito, Tsukuba, JP;
Kenji Toda, Niigata, JP;
Kazuyoshi Uematsu, Niigata, JP;
Mineo Sato, Niigata, JP;
Tetsu Umeda, Ushiku, JP;
Yutaka Ito, Tsukuba, JP;
Niigata University, Niigata, JP;
Sumitomo Chemical Company, Limited, Tokyo, JP;
Abstract
Provided is a fluorescent body for use in a near-ultraviolet excitation light-emitting element, comprising the compound given by formula (1), having part of element Mand/or Mtherein replaced by an activation element (M). MMPO(1) (Here, Mrepresents one or more elements chosen from the group comprising Ca, Sr, and Ba; Mrepresents one or more elements chosen from the group comprising Mg and Zn; a is a number between 1.5 and 2.5, inclusive; b is a number between 2.5 and 3.5, inclusive; and c is a number between 3.5 and 4.5, inclusive.) A fluorescent body in which Mis Sr and Mis Mg, and a fluorescent body in which Mis Eu are preferable. Also provided are a fluorescent paste having the fluorescent body, and a near-ultraviolet excitation light-emitting element having the fluorescent body and having a high luminescent intensity.