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Class Information
Number: 257/86
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Incoherent light emitter structure > Active layer of indirect band gap semiconductor
Description: Subject matter wherein the light emitting active region is in or between semiconductor materials in which direct transitions of electrons from conduction to valance bands do not take place.










Sub-classes under this class:

Class Number Class Name Patents
257/87 With means to facilitate electron-hole recombination (e.g., isoelectronic traps such as nitrogen in gap) 132


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8648352 Semiconductor light emitting structure Feb. 11, 2014
8618536 Organic light-emitting element, display panel, display device, and manufacturing method for organic light-emitting element Dec. 31, 2013
8618561 Methods for depositing nanomaterial, methods for fabricating a device, and methods for fabricating an array of devices Dec. 31, 2013
8592824 High efficiency indirect transition semiconductor ultraviolet light emitting device Nov. 26, 2013
8581297 Method of manufacturing organic EL display unit and organic EL display unit Nov. 12, 2013
8575594 Light emitting diode having a barrier layer with a superlattice structure Nov. 5, 2013
8569736 Light emitting diode Oct. 29, 2013
8558217 Light emitting diode Oct. 15, 2013
8552447 Semiconductor light-emitting element Oct. 8, 2013
8546819 Light emitting device and fabrication method thereof Oct. 1, 2013
8546839 Light emitting diode Oct. 1, 2013
8530907 Room temperature silicon-compatible LED/laser with electrically pumped field emission device Sep. 10, 2013
8513652 Organic light emitting display apparatus and method of manufacturing the same Aug. 20, 2013
8513692 Light emitting devices Aug. 20, 2013
RE44429 Light-emitting semiconductor device having enhanced brightness Aug. 13, 2013
8502350 Stacked layers of nitride semiconductor and method for manufacturing the same Aug. 6, 2013
8482020 System for wafer-level phosphor deposition Jul. 9, 2013
8476647 Silicon-germanium, quantum-well, light-emitting diode Jul. 2, 2013
8471242 Light emitting device, light emitting device package and lighting system Jun. 25, 2013
8471270 Indirect-bandgap-semiconductor, light-emitting diode Jun. 25, 2013
8456010 Semiconductor device Jun. 4, 2013
8450127 Light emitting semiconductor diode May. 28, 2013
8450749 Light emitting element and manufacturing method thereof May. 28, 2013
8436333 Silicon light emitting diode, silicon optical transistor, silicon laser and its manufacturing method May. 7, 2013
8405113 Semiconductor light-emitting device Mar. 26, 2013
8373158 Surface modifying agent, laminated structure and transistor including the same, and method of manufacturing the laminated structure Feb. 12, 2013
8373193 Semiconductor for light emitting device Feb. 12, 2013
8350277 Light emitting element Jan. 8, 2013
8324047 Method and structure of an integrated CMOS and MEMS device using air dielectric Dec. 4, 2012
8324633 Ultra high thermal performance packaging for optoelectronics devices Dec. 4, 2012
8319253 Semiconductor light-emitting device Nov. 27, 2012
8314414 Light emitting device and light emitting device package for improving a light emission efficency Nov. 20, 2012
8304800 Light emitting device, light emitting device package, and lighting device system Nov. 6, 2012
8304805 Semiconductor diodes fabricated by aspect ratio trapping with coalesced films Nov. 6, 2012
8306087 Multi-level integrated photonic devices Nov. 6, 2012
8278667 Light-emitting element and light-emitting element fabrication method Oct. 2, 2012
8242480 Engineering emission wavelengths in laser and light emitting devices Aug. 14, 2012
8237151 Diode-based devices and methods for making the same Aug. 7, 2012
8237178 Light-emitting device Aug. 7, 2012
8212265 Light emitting device and method for fabricating the light emitting device Jul. 3, 2012
RE43426 Fabrication method of transparent electrode on visible light-emitting diode May. 29, 2012
8188487 Surface emitting laser with trenches to define conductive regions May. 29, 2012
8183577 Controlling pit formation in a III-nitride device May. 22, 2012
8174028 Semiconductor composite apparatus, LED, LED printhead, and image forming apparatus May. 8, 2012
8154008 Light emitting diode with improved structure Apr. 10, 2012
8138518 Light emitting diode, package structure and manufacturing method thereof Mar. 20, 2012
8134174 Light-emitting diode Mar. 13, 2012
8129727 Semiconductor light emitting device Mar. 6, 2012
8120019 Organic light-emitting element having tetracyano compound and display device Feb. 21, 2012
8110838 Spatial localization of light-generating portions in LEDs Feb. 7, 2012

1 2 3 4 5










 
 
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