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Class Information
Number: 257/79
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Incoherent light emitter structure
Description: Subject matter wherein the active solid-state device generates incoherent light when subjected to an appropriate input signal.


Sub-classes under this class:

Class Number Class Name Patents
257/86 Active layer of indirect band gap semiconductor 152
257/100 Encapsulated 582
257/80 In combination with or also constituting light responsive device 431
257/88 Plural light emitting devices (e.g., matrix, 7-segment array) 668
257/94 With heterojunction 927
257/99 With housing or contact structure 1,430
257/101 With particular dopant concentration or concentration profile (e.g., graded junction) 321
257/102 With particular dopant material (e.g., zinc as dopant in gaas) 424
257/103 With particular semiconductor material 1,593
257/98 With reflector, opaque mask, or optical element (e.g., lens, optical fiber, index of refraction matching layer, luminescent material layer, filter) integral with device or device enclosure or package 1,729


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Patent Number Title Of Patent Date Issued
5710441 Microcavity LED with photon recycling Jan. 20, 1998
5705834 Increased efficiency LED Jan. 6, 1998
5703394 Integrated electro-optical package Dec. 30, 1997
5686738 Highly insulating monocrystalline gallium nitride thin films Nov. 11, 1997
5661313 Electroluminescent device in silicon on sapphire Aug. 26, 1997
5659184 III-V compound semiconductor device with a polycrystalline structure with minimum grain size of 0.6 .mu.m and printer and display device utilizing the same Aug. 19, 1997
5652434 Gallium nitride-based III-V group compound semiconductor Jul. 29, 1997
5641582 Thin-film EL element Jun. 24, 1997
5641611 Method of fabricating organic LED matrices Jun. 24, 1997
5627386 Silicon nanostructure light-emitting diode May. 6, 1997
5619058 Light emitting diode device having four discrete regions Apr. 8, 1997
5606181 Edge emitting type light emitting diode array heads Feb. 25, 1997
5563422 Gallium nitride-based III-V group compound semiconductor device and method of producing the same Oct. 8, 1996
5561679 Radioluminescent semiconductor light source Oct. 1, 1996
5541423 Monocrystalline diamond semiconductor device and several electronic components employing same Jul. 30, 1996
5521934 Materials for II-VI lasers May. 28, 1996
5444268 Thin film el device Aug. 22, 1995
5440575 Article comprising a semiconductor laser with stble facet coating Aug. 8, 1995
5434939 Optical fiber module with surface emitting laser Jul. 18, 1995
5424573 Semiconductor package having optical interconnection access Jun. 13, 1995
5394422 Materials for II-VI lasers Feb. 28, 1995
5386139 Semiconductor light emitting element with improved structure of groove therein Jan. 31, 1995
5384517 Electroluminescent element including a thin-film transistor for charge control Jan. 24, 1995
5382813 Light emission diode comprising a pn junction of p-type and n-type A1-containing ZnS compound semiconductor layers Jan. 17, 1995
5373172 Semiconducting diamond light-emitting element Dec. 13, 1994
5369290 Light emission element using a polycrystalline semiconductor material of III-V group compound Nov. 29, 1994
5357121 Optoelectronic integrated circuit Oct. 18, 1994
5349208 GaP light emitting element substrate with oxygen doped buffer Sep. 20, 1994
5347147 Light emitting diamond device Sep. 13, 1994
5344518 Pyroelectric IR-sensor Sep. 6, 1994
5329135 Light emitting device for achieving high luminous efficiency and high saturation level of light output Jul. 12, 1994
5324965 Light emitting diode with electro-chemically etched porous silicon Jun. 28, 1994
5323025 Pyroelectric IR-sensor having a low thermal conductive ceramic substrate Jun. 21, 1994
5323084 Light emitting diode printhead Jun. 21, 1994
5315272 Light emitting tunnel diode oscillator May. 24, 1994
5313324 Solid state optical converter May. 17, 1994
5300806 Separation of diode array chips during fabrication thereof Apr. 5, 1994
5299217 Semiconductor light-emitting device with cadmium zinc selenide layer Mar. 29, 1994
5299057 Monolithically integrated optical amplifier and photodetector tap Mar. 29, 1994
5299218 Multi-tip semiconductor laser Mar. 29, 1994
5291037 Light-emitting device Mar. 1, 1994
5291507 Blue-green laser diode Mar. 1, 1994
5281829 Optical semiconductor device having semiconductor laser and photodetector Jan. 25, 1994
5278433 Light-emitting semiconductor device using gallium nitride group compound with double layer structures for the n-layer and/or the i-layer Jan. 11, 1994
5270555 Pyroelectric IR-sensor with a molded inter connection device substrate having a low thermal conductivity coefficient Dec. 14, 1993
5264714 Thin-film electroluminescence device Nov. 23, 1993
5262657 Optically activated wafer-scale pulser with AlGaAs epitaxial layer Nov. 16, 1993
5260958 Materials for II-VI lasers Nov. 9, 1993
5258628 Linearizing emitted light intensity from a light-emitting device Nov. 2, 1993
5243200 Semiconductor device having a substrate recess forming semiconductor regions Sep. 7, 1993

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