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Class 257/E33.033 - Comprising nitride compound (e.g., AlGaN) (EPO)


Subclass of Class 257 - Active solid-state devices (e.g., transistors, solid-state diodes)
Definition: This subclass is indented under subclass E33.031. This subclass
No. of patents: 7
Last issue date: 10/07/2008


NumberTitleIssue Date
7432534III-nitride semiconductor light emitting device
The present invention relates to a III-nitride semiconductor light emitting device comprising a plurality of III-nitride semiconductor layers including an active layer emitting light by recombination of electrons and holes, the plurality of III-nitride semiconductor...
10/07/2008
7408183Low cost InGaAIN based lasers
A method and structure for producing lasers having good optical wavefront characteristics, such as are needed for optical storage includes providing a laser wherein an output beam emerging from the laser front facet is essentially unobstructed by the edges of the se...
08/05/2008
7374959Two-wavelength semiconductor laser device and method of manufacturing the same
A two-wavelength semiconductor laser device includes a first conductive material substrate having thereon first and second regions separated from each other. A first semiconductor laser diode is formed on the first region. A non-active layer is formed on the second ...
05/20/2008
7307292Semiconductor device and method for fabricating the same
An insulating-gate semiconductor device has a first nitride semiconductor layer formed over a substrate and an insulating oxidation layer obtained by oxidizing a second nitride semiconductor layer formed on the first nitride semiconductor layer. A gate electrode is ...
12/11/2007
7271404Group III-V nitride-based semiconductor substrate and method of making same
A group III-V nitride-based semiconductor substrate having a group III-V nitride-based semiconductor thick film with a same composition in the entire film. The thick film has a first region with a predetermined impurity concentration and a second region with an impu...
09/18/2007
7161301Nitride light-emitting device having an adhesive reflecting layer
A nitride light-emitting device having an adhesive reflecting layer includes a transparent adhesive layer, a nitride light-emitting stack layer and a metal reflecting layer. The transparent adhesive layer adheres the nitride light-emitting stack layer and the metal ...
01/09/2007
7087922Light-emitting diode structure
A gallium-nitride based light-emitting diode structure includes a digital penetration layer to raise its reverse withstanding voltage and electrostatic discharge. The digital penetration layer is formed by alternate stacking layers of AlxInyGa
08/08/2006
 
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