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. 31, 2011
Filed:
May. 03, 2010
Hiroto Tamaki, Anan, JP;
Suguru Takashima, Anan, JP;
Masatoshi Kameshima, Anan, JP;
Takahiro Naitou, Anan, JP;
Hiroto Tamaki, Anan, JP;
Suguru Takashima, Anan, JP;
Masatoshi Kameshima, Anan, JP;
Takahiro Naitou, Anan, JP;
Nichia Corporation, Anan-shi, JP;
Abstract
An oxynitride phosphor consisting of a crystal containing at least one or more of Group II elements selected from the group consisting of Be, Mg, Ca, Sr, Ba and Zn, at least one or more of Group IV elements selected from the group consisting of C, Si, Ge, Sn, Ti, Zr and Hf, and a rare earth element being an activator R, thereby providing a phosphor which is excited by an excitation light source at an ultraviolet to visible light region and which has a blue green to yellow luminescence color that is wavelength converted.