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. 22, 2012
Filed:
Apr. 09, 2010
Applicants:
Kojiro Okuyama, Nara, JP;
Yayoi Okui, Osaka, JP;
Seigo Shiraishi, Osaka, JP;
Inventors:
Assignee:
Panasonic Corporation, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01J 1/62 (2006.01); C09K 11/77 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a phosphor with high luminance and color purity. The phosphor of the present invention is represented by the general formula: aYO·(3−a)CeO·bAlO·cGaO, where 2.80≦a≦2.99, 1.00≦b≦5.00, 0≦c≦4.00, and 4.00≦b+c≦5.00 are satisfied. In the phosphor, a peak whose peak top is located in the range of diffraction angle 2θ of not less than 16.7 degrees but not more than 16.9 degrees is present in an X-ray diffraction pattern obtained by measurement on the phosphor using an X-ray with a wavelength of 0.774 Å.