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Class Information
Number: 257/97
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Incoherent light emitter structure > With heterojunction > Plural heterojunctions in same device > More than two heterojunctions in same device
Description: Subject matter wherein the light emitting device has more than two heterojunctions.


Patents under this class:
1 2 3 4 5 6 7 8 9

Patent Number Title Of Patent Date Issued
7456435 Light-emitting semiconductor device Nov. 25, 2008
7449723 Semiconductor device Nov. 11, 2008
7396697 Semiconductor light-emitting device and method for manufacturing the same Jul. 8, 2008
7368757 Compound semiconductor and compound semiconductor device using the same May. 6, 2008
7365369 Nitride semiconductor device Apr. 29, 2008
7358538 Organic light-emitting devices with multiple hole injection layers containing fullerene Apr. 15, 2008
7352009 Light emitting nitride semiconductor device and method of fabricating the same Apr. 1, 2008
7351661 Semiconductor device having trench isolation layer and a method of forming the same Apr. 1, 2008
7348602 Nitride semiconductor device Mar. 25, 2008
7323722 Semiconductor optical device Jan. 29, 2008
7323721 Monolithic multi-color, multi-quantum well semiconductor LED Jan. 29, 2008
7315048 Method and apparatus for mixing light emitted by a plurality of solid-state light emitters Jan. 1, 2008
7312474 Group III nitride based superlattice structures Dec. 25, 2007
7306964 Method of manufacturing a vertically-structured GaN-based light emitting diode Dec. 11, 2007
7297989 Diboride single crystal substrate, semiconductor device using this and its manufacturing method Nov. 20, 2007
7294200 Method for producing nitride semiconductor crystal, and nitride semiconductor wafer and nitride semiconductor device Nov. 13, 2007
7288783 Optical semiconductor device and method for fabricating the same Oct. 30, 2007
7279717 Light emitting device Oct. 9, 2007
7276742 Compound semiconductor light emitting device and its manufacturing method Oct. 2, 2007
7274040 Contact and omnidirectional reflective mirror for flip chipped light emitting devices Sep. 25, 2007
7271424 Light-emitting diode with openings formed in a stacked structure Sep. 18, 2007
7259406 Semiconductor optical element Aug. 21, 2007
7244972 Semiconductor devices and method for manufacturing the same Jul. 17, 2007
7224001 Semiconductor light source May. 29, 2007
7211836 Group-III nitride semiconductor light-emitting device and production method thereof May. 1, 2007
7208338 Method of manufacturing semiconductor light emitting device Apr. 24, 2007
7208752 Structure and manufacturing of gallium nitride light emitting diode Apr. 24, 2007
7208770 Oxygen-doped Al-containing current blocking layers in active semiconductor devices in photonic integrated circuits (PICs) Apr. 24, 2007
7196348 GaN system semiconductor light emitting device excellent in light emission efficiency and light extracting efficiency Mar. 27, 2007
7183584 Quantum well structure and semiconductor device using it and production method of semiconductor element Feb. 27, 2007
7176479 Nitride compound semiconductor element Feb. 13, 2007
7154125 Nitride-based semiconductor light-emitting device and manufacturing method thereof Dec. 26, 2006
7148519 Structure of GaN light-emitting diode Dec. 12, 2006
7148518 Group-III nitride semiconductor stack, method of manufacturing the same, and group-III nitride semiconductor device Dec. 12, 2006
7145180 Method of fabricating a light emitting device, and light emitting device Dec. 5, 2006
7135710 Semiconductor light-emitting device Nov. 14, 2006
7132677 Super bright light emitting diode of nanorod array structure having InGaN quantum well and method for manufacturing the same Nov. 7, 2006
7122846 Oxygen-doped Al-containing current blocking layers in active semiconductor devices in photonic integrated circuits (PICs) Oct. 17, 2006
7119359 Photodetectors and optically pumped emitters based on III-nitride multiple-quantum-well structures Oct. 10, 2006
7102175 Semiconductor light-emitting device and method for fabricating the same Sep. 5, 2006
7098484 Epitaxial substrate for compound semiconductor light-emitting device, method for producing the same and light-emitting device Aug. 29, 2006
7095041 High-efficiency light emitting diode Aug. 22, 2006
7087449 Oxygen-doped Al-containing current blocking layers in active semiconductor devices Aug. 8, 2006
7087924 Gallium-nitride based light emitting diode structure with enhanced light illuminance Aug. 8, 2006
7084433 Semiconductor laser device capable of maintaining the operation current low and method of manufacturing the same Aug. 1, 2006
7078738 Light-emitting device Jul. 18, 2006
7071407 Method and apparatus of multiplejunction solar cell structure with high band gap heterojunction middle cell Jul. 4, 2006
7067847 Semiconductor element Jun. 27, 2006
7057211 Nitride semiconductor laser device and manufacturing method thereof Jun. 6, 2006
7053418 Nitride based semiconductor device May. 30, 2006

1 2 3 4 5 6 7 8 9


 
 
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