US Patent 7723740 Light emitting device
Patent 7723740 was granted and assigned to Nichia on May, 2010 by the United States Patent and Trademark Office.
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Patent abstract
A light emitting device that light of various colors by blending lights emitted by two or more kinds of fluorescent materials which are substantially directly excited by light emitted by an excitation source having principal emission peak in a range from 250 nm to 500 nm. Each of the fluorescent materials is of a direct-transition type.
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Patent Inventor Names
Hiroto Tamaki0
Junji Takeichi0
Masatoshi Kameshima0
Shinpei Kinoshita0
Suguru Takashima0
Yoshinori Murazaki0
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US Patent 07723740 Light emitting device US Patent 7723740 Light emitting device
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Patent Number
07723740
Patent Number
7723740
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US Patent 07723740 Light emitting device
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Is a
Current assignee
Patent jurisdiction
Patent number
07723740
Date of patent
May 25, 2010
Patent application number
10942135
Date Filed
September 16, 2004
Patent primary examiner
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