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. 30, 2017
Filed:
May. 20, 2009
Applicants:
Takahiro Igarashi, Kanagawa, JP;
Tsuneo Kusunoki, Kanagawa, JP;
Inventors:
Takahiro Igarashi, Kanagawa, JP;
Tsuneo Kusunoki, Kanagawa, JP;
Assignee:
DEXERIALS CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/77 (2006.01);
U.S. Cl.
CPC ...
C09K 11/7734 (2013.01);
Abstract
A phosphor includes (Sr, Ba)SiOwith 1>x≧0.1 as a base material and europium (Eu) as an activator. The emission center wavelength of the phosphor is controlled to be 600 nm or more on the basis of the composition ratio of Sr, Ba, and Eu.