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.:

US 8021576 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 20, 2011

Filed:

Mar. 13, 2009
Applicants:

Etsuo Shimizu, Kanagawa, JP;

Kumie Shimizu, Legal Representative, Tokyo, JP;

Naoto Kijima, Kanagawa, JP;

Yasuo Shimomura, Kanagawa, JP;

Inventors:

Etsuo Shimizu, Kanagawa, JP;

Kumie Shimizu, legal representative, Tokyo, JP;

Naoto Kijima, Kanagawa, JP;

Yasuo Shimomura, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/00 (2010.01); C09K 11/78 (2006.01); C09K 11/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

To provide a phosphor having nearly spherical shapes, the phosphor has an elemental ratio represented by the formula below, and contains at least two kinds of Li, Na, K, Rb, Cs, P, Cl, F, Br, I, Zn, Ga, Ge, In, Sn, Ag, Au, Pb, Cd, Bi and Ti.MMMO(Mrepresents Cr, Mn, Fe, Co, Ni, Cu, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm or Yb, Mmainly represents a bivalent metal element, Mmainly represents a trivalent metal element, and a, b, c and d are 0.0001≦a≦0.2, 0.8≦b≦1.2, 1.6≦c≦2.4 and 3.2≦d≦4.8, respectively.)


Find Patent Forward Citations

Shimizu, Etsuo. (2011). Phosphor and production method thereof, and phosphor-containing composition, light emitting device, image display and lighting system (U.S. Patent No. 8021576). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8021576

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