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:
Oct. 30, 2012
Filed:
Feb. 18, 2009
Hisayoshi Daicho, Shizuoka, JP;
Masanobu Mizuno, Shizuoka, JP;
Hajime Yamamoto, Hachioji, JP;
Yoshinobu Miyamoto, Hachioji, JP;
Bonggoo Yun, Hachioji, JP;
Hisayoshi Daicho, Shizuoka, JP;
Masanobu Mizuno, Shizuoka, JP;
Hajime Yamamoto, Hachioji, JP;
Yoshinobu Miyamoto, Hachioji, JP;
Bonggoo Yun, Hachioji, JP;
Koito Manufacturing Co., Ltd., Tokyo, JP;
Abstract
A white light emitting device includes a semiconductor light emitting element that has a peak of an emission spectrum in a range of 370 nm to 480 nm, and at least one kind of phosphor that is excited by light emitted from the semiconductor light emitting element to emit visible light. The phosphor is represented by the formula: SrBaSiON:Eu, wherein x is in the range of 0.3<x<1.0, y is in the range of 0.03<y<0.3, and x+y is in the range of x+y<1.0, and a vehicle lamp using the while light emitting device.