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:
Dec. 08, 2020
Filed:
Jul. 02, 2018
Applicants:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Materials Co., Ltd., Yokohama, JP;
Inventors:
Assignees:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Materials Co., Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/77 (2006.01); C01F 17/30 (2020.01);
U.S. Cl.
CPC ...
C09K 11/7789 (2013.01); C01F 17/30 (2020.01); C09K 11/7767 (2013.01); C09K 11/7771 (2013.01); C09K 11/7784 (2013.01); C01P 2002/50 (2013.01); C01P 2002/54 (2013.01); C01P 2006/80 (2013.01);
Abstract
A phosphor of an embodiment has a composition represented by a composition formula: NaRMSO, where R represents at least one element selected from the group consisting of Y, La, Gd, and Lu, M represents at least one element selected from the group consisting of Bi, Ce, Eu, and Pr, x is an atomic ratio satisfying 0.93<x<1.07, y is an atomic ratio satisfying 0.00002<y<0.01, z is an atomic ratio satisfying 1.9<z<2.1, and a is an atomic ratio satisfying 0.001<a<0.05.