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Class Information
Number: 257/E33.013
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Light emitting semiconductor devices having a potential or a surface barrier, processes or apparatus peculiar to the manufacture or treatment of such devices, or of parts thereof > Device characterized by semiconductor body (epo) > Material of active region (epo)
Description: This subclass is indented under subclass E33.002. This subclass is substantially the same in scope as ECLA classification H01L33/00C4.










Sub-classes under this class:

Class Number Class Name Patents
257/E33.037 Comprising compound other than group ii-vi, iii-v, and iv compound (epo) 38
257/E33.019 Comprising only group ii-vi compound (epo) 86
257/E33.023 Comprising only group iii-v compound (epo) 166
257/E33.035 Comprising only group iv compound (e.g., sic) (epo) 55
257/E33.015 Comprising only group iv element (epo) 56
257/E33.014 In different regions (epo) 35


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8686463 Capping system Apr. 1, 2014
8680571 Gallium nitride based light emitting diode Mar. 25, 2014
8674338 Semiconductor light emitting device Mar. 18, 2014
8674375 Roughened high refractive index layer/LED for high light extraction Mar. 18, 2014
8674382 Semiconductor light emitting device comprising heterojunction Mar. 18, 2014
8642367 Thin film transistor having improved manufacturability and method for manufacturing a display panel containing same Feb. 4, 2014
8633508 Semiconductor element and a production method therefor Jan. 21, 2014
8629441 Semiconductor device and method for manufacturing semiconductor device Jan. 14, 2014
8586965 Group III nitride semiconductor light-emitting device Nov. 19, 2013
8574955 Method for producing light-emitting film and light-emitting device Nov. 5, 2013
8569088 Semiconductor light-emitting element and manufacturing method thereof Oct. 29, 2013
8558217 Light emitting diode Oct. 15, 2013
8546167 Gallium nitride-based compound semiconductor light-emitting element Oct. 1, 2013
8546839 Light emitting diode Oct. 1, 2013
8524527 High-performance single-crystalline N-type dopant-doped metal oxide nanowires for transparent thin film transistors and active matrix organic light-emitting diode displays Sep. 3, 2013
8525195 Semiconductor light emitting device Sep. 3, 2013
8513660 Organic optoelectronic device and making method thereof Aug. 20, 2013
8487335 Light emitting device, illumination apparatus and display apparatus Jul. 16, 2013
8487341 Semiconductor device having a plurality of bonding layers Jul. 16, 2013
8461569 Semiconductor device and a method of fabricating a semiconductor device Jun. 11, 2013
8441029 Light emitting element including side surface dielectric layer for avoiding impurity adhesion May. 14, 2013
8421115 Semiconductor material, method of producing semiconductor material, light emitting device and light receiving device Apr. 16, 2013
8415188 Method for manufacturing nitride semiconductor laser element Apr. 9, 2013
8410497 Semiconductor light emitting device Apr. 2, 2013
8395148 Semiconductor device and method for manufacturing the same Mar. 12, 2013
8384096 Semiconductor component with optically active regions which provides high optical output power, and method for producing same Feb. 26, 2013
8378367 Light-emitting devices with vertical light-extraction mechanism and method for fabricating the same Feb. 19, 2013
8367449 Semiconductor light-emitting apparatus and method of manufacturing the same Feb. 5, 2013
8367462 Large-scale fabrication of vertically aligned ZnO nanowire arrays Feb. 5, 2013
8368050 Plasmon enhanced light-emitting diodes Feb. 5, 2013
8368089 Semiconductor light emitting device Feb. 5, 2013
8338826 Suspension or solution for making organic optoelectronic device, making method thereof, and applications Dec. 25, 2012
8334545 OLED display architecture Dec. 18, 2012
8324615 Light-emitting element, light-emitting device, and electronic device Dec. 4, 2012
8319231 Display device Nov. 27, 2012
8319238 Light emitting device with improved light extraction efficiency Nov. 27, 2012
8314429 Multi color active regions for white light emitting diode Nov. 20, 2012
8304784 Illumination device Nov. 6, 2012
8299493 Semiconductor light emitting device and method of fabricating the same Oct. 30, 2012
8269234 Semiconductor light-emitting device Sep. 18, 2012
8247812 Transistor, semiconductor device including the transistor, and manufacturing method of the transistor and the semiconductor device Aug. 21, 2012
8227282 Method of manufacturing vertical light emitting diode Jul. 24, 2012
8222657 Light emitting apparatus Jul. 17, 2012
8217397 Thin film transistor substrate and display device Jul. 10, 2012
8193545 Nitride semiconductor light emitting device and fabrication method thereof Jun. 5, 2012
8193021 Nitride semiconductor and method for manufacturing same Jun. 5, 2012
8193011 Thin film deposition apparatus and method of manufacturing organic light-emitting display device by using the same Jun. 5, 2012
8188480 Thin film field effect transistor and display May. 29, 2012
8183068 Nitride-based semiconductor light emitting device and method of manufacturing the same May. 22, 2012
8178896 Light emitting element May. 15, 2012

1 2 3










 
 
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