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.

Date of Patent:
Mar. 31, 2015

Filed:

Mar. 15, 2013
Applicant:

Mitsubishi Chemical Corporation, Tokyo, JP;

Inventors:

Takatoshi Seto, Yokohama, JP;

Naoto Kijima, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 11/08 (2006.01); C09K 11/77 (2006.01); H05B 33/12 (2006.01); H01L 33/50 (2010.01);
U.S. Cl.
CPC ...
C09K 11/7774 (2013.01); C09K 11/0883 (2013.01); C09K 11/7706 (2013.01); C09K 11/7734 (2013.01); C09K 11/7737 (2013.01); C09K 11/7792 (2013.01); H01L 33/502 (2013.01); H05B 33/12 (2013.01); H01L 2224/48091 (2013.01); H01L 2224/48247 (2013.01);
Abstract

To provide a new phosphor of which fluorescence contains much red light component and has a large full width at half maximum, the crystal phase represented by the formula [I] is included in the phosphor.RMASiAlON  [I](R represents La, Gd, Lu, Y and/or Sc, M represents Ce, Eu, Mn, Yb, Pr and/or Tb, A represents Ba, Sr, Ca, Mg and/or Zn, and x, y, z, w1 and w2 are the numeric values in the following ranges:(1/7)≦(3−2)/6<(1/2),0<(1.52)/6<(9/2),0<<3,0≦<2,0<<1,0≦1≦5,0≦2≦5, and0≦1+2≦5).


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