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:
Jan. 02, 2007
Filed:
Sep. 30, 2004
Koichi Ota, Aichi-ken, JP;
Atsuo Hirano, Aichi-ken, JP;
Akihito Ota, Aichi-ken, JP;
Stefan Tasch, Jennersdorf, AT;
Peter Pachler, Graz, AT;
Gundula Roth, Levenhagen, DE;
Walter Tews, Greifswald, DE;
Wolfgang Kempfert, Bad Liebenstein, DE;
Detlef Starick, Bad Liebenstein, DE;
Koichi Ota, Aichi-ken, JP;
Atsuo Hirano, Aichi-ken, JP;
Akihito Ota, Aichi-ken, JP;
Stefan Tasch, Jennersdorf, AT;
Peter Pachler, Graz, AT;
Gundula Roth, Levenhagen, DE;
Walter Tews, Greifswald, DE;
Wolfgang Kempfert, Bad Liebenstein, DE;
Detlef Starick, Bad Liebenstein, DE;
Toyoda Gosei Co., Ltd., Nishikasugai-gun, JP;
Tridonic Optoelectronics GmbH, Jennersdorf, AT;
Litec GBR, Greifswald, DE;
Leuchstoffwerk Breitungen GmbH, Breitunge, DE;
Abstract
The light emitting device has a light emitting diode which is made of a nitride semiconductor and a phosphor which absorbs a part of lights emitted from the light emitting diode and emits different lights with wavelengths other than those of the absorbed lights. The phosphor is made of alkaline earth metal silicate fluorescent material activated with europium.