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:
Feb. 26, 2013
Filed:
Mar. 18, 2009
Kenji Toda, Niigata, JP;
Kazuyoshi Uematsu, Niigata, JP;
Mineo Sato, Niigata, JP;
Tetsu Umeda, Ushiku, JP;
Yutaka Ito, Tsukuba, JP;
Kenji Toda, Niigata, JP;
Kazuyoshi Uematsu, Niigata, JP;
Mineo Sato, Niigata, JP;
Tetsu Umeda, Ushiku, JP;
Yutaka Ito, Tsukuba, JP;
Niigata University, Niigata, JP;
Sumitomo Chemical Company, Limited, Tokyo, JP;
Abstract
Provided are phosphors that can exhibit higher emission luminance. Phosphors in which the activator is included in a compound represented by Formula xMO.MO.yMO(wherein Mrepresents one or more of a group comprising Ca, Sr and Ba, Mrepresents Mg and/or Zn, Mrepresents Si and/or Ge, x is a value in the range 4 to 6 and y is a value in the range 2 to 4). Phosphors represented by Formula MEuMMO(wherein M, Mand Mhave the same meanings as above, and z is a value in the range 0.0001 to 0.3). The above phosphors have the same crystal structure as bredigite.