baber/WOPTO huggingface dataset:
Patent KR-20050088292-A (KR)
Title: Selectively changeable line width memory
Inventor: BLANCO RAFAEL
IPC: G06F12/08
Filed: 2002-12-17
Abstract: The invention provides for selectively changing a line width for a memory, i.e., selecting one of a plurality of line widths for a memory (14). The selected line width is used in communicating with one or more processors (12, 26). This provides increased flexibility and efficiency for communicating with the memory. In particular, a register (42) can be set based on a desired line width, and subsequently used when locating data in the memory. The selected line width can be associated with each data block (38) in the memory to allow multiple line widths to be used simultaneously. When implemented in a cache (30, 130), multiple ways (40) of the cache can be processed as a group to provide data during a single memory operation. The line width can be varied based on a task (13, 28), a processor, and/or a performance evaluation.
Patent KR-20050098887-A (KR)
Title: Network assisted cell reselection in wireless communications systems and methods
Inventor: PECEN MARK
IPC: H04L12/801
Filed: 2004-02-04
Abstract: A method in a mobile wireless communications network including sending (210) a reselection communication from a mobile station to a network, and receiving (220) from the network in response to the reselection communication, cell reselection assistance, for example, a new cell assignment. In one embodiment, the mobile station disables cell reselection.
Patent KR-20050113661-A (KR)
Title: Capacitance manometer having a relatively thick flush diaphragm under tension to provide low hysteresis
Inventor: FERRAN ROBERT J
IPC: H01L/
Filed: 2004-03-17
Abstract: A capacitance diaphragm gauge (100) for measuring pressure includes a flush diaphragm (120) mounted to a body structure (110) via a shim (122) or other raised perimeter portion.
Patent KR-20050120810-A (KR)
Title: Beam uniformity and angular distribution measurement system
Inventor: BENVENISTE VICTOR
IPC: H01L21/265
Filed: 2004-04-29
Abstract: The present invention facilitates semiconductor device fabrication by monitoring uniformity of beam current and angle of incidence at various locations throughout an ion beam (e.g., a wider portion of a ribbon beam). One or more uniformity detectors are employed within an ion implantation system (e.g., single wafer based system and/or a multiple wafer based system) and are comprised of a number of elements. The respective elements comprise an aperture that selectively obtains a beamlet from an incident ion beam and a pair of sensors that measure beam current as a function of the incoming angle of the ion beam. The angle of incidence at for particular elements can be determined at least partially from the measured beam current by the pairs of sensors. As a result, generation of an ion beam can be adjusted to improve uniformity as indicated and ion implantation can be performed with an improved uniformity and under tighter process controls.
Patent KR-20060011984-A (KR)
Title: Process for the preparation of (4-hydroxy-6-oxo-tetrahydropyran-2-yl) acetonitrile and derivatives thereof
Inventor: MINK DANIEL
IPC: C07D309/30
Filed: 2004-04-28
Abstract: The invention relates to a process for the preparation of (4-hydroxy-6- oxo-tetrahydro-pyran-2-yl)-acetonitrile from 6-X-substituted-methyl-4- hydroxy-tetrahydro-pyran-2-one, wherein X stands for a leaving group, by reacting 6-X-substituted-methyl-4-hydroxy-tetrahydro-pyran-2-one with a cyanide ion in water and by subsequent lowering of the pH to a pH between 0 and 5. (4-hydroxy-6-oxo-tetrahydro-pyran-2-yl)-acetonitrile and other compounds obtainable from (4-hydroxy-6-oxo-tetrahydro-pyran-2-yl)- acetonitrile may suitably be used in the preparation of a pharmaceutical preparation, more in particular in the preparation of statins, more in particular in the preparation of Atorvastatine or a salt thereof, for instance its calcium salt. The invention also relates to (4-hydroxy-6-oxo- tetrahydro-pyran-2-yl)-acetonitrile and other compounds obtainable therefrom.
Patent KR-20050121273-A (KR)
Title: Plasma treatment for purifying copper or nickel
Inventor: MOZETIC MIRAN
IPC: B08B7/00
Filed: 2004-05-07
Abstract: The invention concerns a method for treating electronic components made of copper, nickel or alloys thereof or with materials such as brass or plated therewith. The inventive method comprises the following steps which consist in: arranging the components in a treatment chamber, generating a vacuum in the treatment chamber, introducing oxygen into the treatment chamber, providing a pressure ranging between 10-1 and 50 mbar in the treatment chamber and exciting a plasma in the chamber by means of a high frequency generator having a frequency higher than about 1 MHz, allowing the oxygen radicals to act on the components, the flow of the radicals on the surface of the components being more than 1021 radicals per square meter per second approximately, generating a vacuum in the treatment chamber, introducing hydrogen into the treatment chamber, providing a pressure ranging between 10-1 and 50 mbar in the treatment chamber and exciting a plasma in the chamber by means of a high frequency generator having a frequency higher than about 1 MHz, and allowing the hydrogen radicals to act on the components, the flow of the radicals on the surface of the components being higher than 1021 radicals per square meter per second approximately.
Patent KR-20060018832-A (KR)
Title: Production of polyunsaturated fatty acids in oleaginous yeasts
Inventor: PICATAGGIO STEPHEN K
IPC: C12N15/74
Filed: 2004-05-07
Abstract: The present invention relates to methods for the production of omega-3 and/or omega-6 fatty acids in oleaginous yeast. Thus, desaturases and elongases able to catalyze the conversion of linoleic acid (LA) to gamma-linolenic acid (GLA); alpha-linoleic acid (ALA) to stearidonic acid (STA); GLA to dihomo-gamma- linoleic acid (DGLA); STA to eicosatetraenoic acid (ETA); DGLA to arachidonic acid (ARA); ETA to eicosapentaenoic acid (EPA); DGLA to ETA; EPA to docosapentaenoic acid (DPA); and ARA to EPA have been introduced into the genome of Yarrowia for synthesis of ARA and EPA.
Patent KR-20060009312-A (KR)
Title: Dispersion for chemical-mechanical polishing
Inventor: BRANDES RALPH
IPC: C09G1/02
Filed: 2004-04-24
Abstract: An aqueous dispersion having a pH value of between 3 and 7 containing 1 to 35 wt.% of a pyrogenically produced silicon-aluminium mixed oxide powder with a specific surface area of 5 to 400 m^2g, wherein the proportion of aluminium oxide in the powder is between 90 and 99.9 wt.% or between 0.01 and 10 wt.%, the surface of the powder comprises zones of aluminium oxide and silicon dioxide and the powder exhibits no signals for crystalline silicon dioxide in an X-ray diffractogram. Said dispersion may be used for the chemical-mechanical polishing of conductive, metallic films.
Patent KR-20060021313-A (KR)
Title: Electroluminescent device
Inventor: GIRALDO ANDREA
IPC: H05B33/10
Filed: 2004-05-12
Abstract: An electroluminescent device (1) comprising a lower electrode layer (10), and an upper electrode layer (2), which are both connectable to a driving circuit (3) and electrically accessible from below, is disclosed. One or more functional layers (5) are disposed between the electrode layers (2, 10) to form an electroluminescent area. The device (1) comprises a relief pattern comprising insulating positively sloped ribs (7), in-between which a well (13) is formed. The upper electrode layer (2) has an extension over at least one positively sloped rib (7), and the well (13) is arranged on a first side (7'), and a contact surface (4) is arranged on a second side (7") of the positively sloped rib (7). The extension of the upper electrode layer (2) provides for at least part of said contact surface (4) being covered by said upper electrode layer (2). Thereby, the upper electrode layer (2) becomes accessible from below in the contact surface (4). The device (1) may be used for structured cathodes in active matrix displays, and/or for reducing the sheet resistance in transparent/semi-transparent cathodes.
Patent KR-20060015622-A (KR)
Title: Method of adjusting a component relative to a frame, system for this purpose, and product comprising an adjusted component located on a frame
Inventor: BIERHOFF WALTHERUS C J
IPC: G11B7/22
Filed: 2004-05-14
Abstract: Method and device for positioning a component (3) with respect to a frame (2), whereby at least on positioning element (12) is introduced through at least one opening (8) of the frame. One end of the positioning element is inserted into a groove (13) of the component lying on the frame, whereby the end of the positioning element is pressed against at least one wall forming a boundary of the groove for positioning the component into the desired position.
Patent KR-20060059898-A (KR)
Title: Surgical nail
Inventor: SCHLIENGER ANDRE
IPC: A61B17/68
Filed: 2003-06-12
Abstract: The invention relates to a surgical nail (1), in the form of an intramedullary nail with a central axis (2), consisting of a material M with a tensile strength Fz, compressive strength Fd, density rho2 and an elasticity modulus E. Said nail comprises at least one transversal bore (5), which runs transversally to the central axis (2) and has a cross-sectional profile F, and a transversal axis (6), the cross- sectional profile F having a maximum length a that runs in the direction of the central axis and a maximum width b that runs perpendicular to the length. The nail also comprises a longitudinal bore (3) running coaxially with the central axis (2) and a wall (4), in addition to an insert (7) that can be introduced into the region of the transversal bore (5) via the longitudinal bore (3). Said insert has a longitudinal axis (13) and consists of a material "m", which has a lower elasticity modulus e < E than the material M.
Patent KR-20060082807-A (KR)
Inventor: OH YUN SANG
IPC: G06F21/78
Filed: 2006-01-11
Abstract: 본 발명은 디지털 저작권 관리에 관한 것이다.  본 발명의 실시예에 따른 마스터 디바이스는 상속 구조를 갖는 권리객체를 저장하는 저장 모듈, 상기 저장 모듈에서 소정의 컨텐츠 객체를 재생시키는데 필요한 권리객체를 검색하는 검색 모듈, 상기 검색 모듈이 상기 컨텐츠 객체를 재생시키는데 필요한 권리객체를 검색하지 못한 경우, 검색되지 않은 권리객체를 요청하는 권리객체 요청 메시지를 생성하는 메시지 생성 모듈, 상기 권리객체 요청 메시지를 슬레이브 디바이스에게 전송하고, 상기 슬레이브 디바이스로부터 상기 권리객체 요청 메시지에 따른 권리객체를 수신하는 디바이스 인터페이스 모듈, 및 상기 검색 모듈이 검색한 권리객체와 상기 디바이스 인터페이스 모듈이 수신한 권리객체 중에서 적어도 하나를 사용하여 상기 컨텐츠 객체를 재생시키는 재생 모듈을 포함한다. 
       
     DRM, 권리객체, 상속
Patent KR-20070075845-A (KR)
Title: Plasma display panel device
Inventor: KIM SUNG BUM
IPC: H01J11/34
Filed: 2006-01-16
Abstract: A plasma display device is provided to separate a glass substrate from a mask at a process of depositing a dielectric protective layer by using a vespel protruding from at least one component at each side of mask. A carrier(10) transfers a glass substrate(30) in left and right directions. A mask(20) is positioned on an edge of the glass substrate, and has a shape corresponding to the glass substrate. A vespel(40) protrudes from at one component at each side of the mask to support the glass substrate. A tension mask is formed on the vespel to prevent damage of the glass substrate, and the glass substrate is positioned on the tension mask.
Patent KR-20070079239-A (KR)
Title: Electron emission device having grooved carbon nanotube layer and preparation thereof
Inventor: BAIK CHAN WOOK
IPC: H01J1/30
Filed: 2006-02-01
Abstract: A method for manufacturing an electron emission device having a bent carbon nano tube layer is provided to emit uniformly an electron beam approaching an anode by using the carbon nano tube layer as an emitter. An electron emission device includes a base substrate(401), a cathode electrode(402), and a carbon nano tube layer(403). The cathode electrode is formed on an upper surface of the base substrate. The carbon nano tube layer is formed on the cathode electrode. A plurality of protrusions are formed on the carbon nano tube layer. The base substrate is a glass substrate. The cathode electrode is formed of ITO(Indium Tin Oxide). The protrusions are formed periodically. Each of the protrusions has a round-shaped sectional surface.
Patent KR-20060017910-A (KR)
Inventor: HUR SAM SUK
IPC: G21F9/00
Filed: 2006-02-07
Abstract: 본 발명은 방사능 오염 세탁물 연속분류 장치를 개시한다. 
     본 발명에 따른 방사능 오염 세탁물 연속분류 장치는, 방사선 관리구역에서 사용한 작업복을 폐기물과 세탁물로 분류하는 분류 장치에 있어서, 건물의 천장에 간격을 두고 지지구에 의해 매달리는 형태로 구비되는 것으로 상면에는 가이드홀이 형성되는 고리 형상을 갖는 레일과, 상기 레일을 따라 순환될 수 있게 구비되는 고리 형상의 체인 및 이 체인에 종방향으로 배치 구비되어 일체로 연동되는 것으로 그 상단부는 레일의 가이드홀에 지지되어 슬라이드 이동되는 이동 포스트와, 상기 이동 포스트의 하단에 힌지 결합되어 선택적으로 회동되는 작업복을 걸친 옷걸이가 걸리는 후크와, 상기 체인의 일측에 구비되어 전원공급에 의해 일방향 회전을 하는 모터 및 이 모터에 연결되어 일체로 회전되는 구동 스프로킷 그리고 이 구동 스프로킷과 체인을 일정한 장력을 갖는 위치에 회전 가능하게 설치되어 체인을 순환시키는 종동 스프로킷으로 된 구동수단과, 상기 레일의 일측에 설치되어 체인에 의해 이동되는 작업복에 대한 방사능 수치를 검출하는 감지기 및 이 감지기에서 검출된 수치를 입력받아 폐기물용과 세탁물용으로 분류하여 제어신호를 출력하는 마이컴과, 상기 레일상에 간격을 두고 한쌍으로 설치되며 마이컴의 제어신호에 의해 선택적으로 후크를 향해 로드를 출몰시켜 후크의 회동을 유발하여 작업복을 낙하시키는 폐기물 및 세탁물용 분류 실린더를 포함하여 구성된다. 
     상기와 같이 구성되는 방사능 오염 세탁물 연속분류 장치는 방사능에 오염될  가능성이 높은 구역에서 사용한 작업복들에 대해 연속적으로 방사능 수치를 검출하면서 재사용이 가능한 세탁물과 폐기물로 분류 처리하므로 중·저준위 핵폐기물의 생성을 감소시킬 수 있는 유용한 효과를 제공한다. 
       
     방사능, 원전, 방사선, 작업복, 분류
Patent KR-20070083082-A (KR)
Title: Device and method for driving liquid crystal display
Inventor: CHANG KEUN JIN
IPC: G09G3/20
Filed: 2006-02-20
Abstract: An apparatus and a method for driving an LCD device are provided to lower the surface temperature of a package by disposing a gradation voltage supply unit, a switching unit, and a switch for a charge sharing in an output pad. An apparatus for driving an LCD(Liquid Crystal Display) device includes a gradation voltage supply unit(52), a first switching unit(54), and an output pad. The gradation voltage supply unit receives a first gradation voltage signal and generates a second gradation voltage signal for driving a panel. The first switching unit switches the second gradation voltage signal according to a first switching control signal. The output pad delivers the second gradation voltage signal to pixels of respective panels. The gradation voltage supply unit and the first switching unit are disposed in the output pad.
Patent KR-20070087352-A (KR)
Title: Lead frame of semiconductor device
Inventor: HAN DONG HEE
IPC: H01L23/495
Filed: 2006-02-23
Abstract: A lead frame of a semiconductor device is provided to improve the accuracy of analogy and analysis of defect points by connecting a dummy frame part of the lead frame to an internal voltage pad. An inner lead(100) is bonded to a semiconductor chip. An outer lead(110) is arranged at an external side of the inner lead. Plural dummy lead frames(120) are formed to be connected to internal voltage pads of an upper portion and a lower portion of a lead frame. The internal voltage pads are VBLP, VPP, VBB, and VCP pads. The two dummy lead frames formed on the upper portion of the lead frame are connected to the VBLP and VPP pads. The two dummy lead frames formed on the lower portion of the lead frame are connected to VBB and VCP pads. The VBLP, VPP, VBB, and VCP pads are arranged on an edge unit of the semiconductor chip.
Patent KR-20060096927-A (KR)
Inventor: DIBERARDINO MICHAEL F
IPC: H01L23/495
Filed: 2006-03-07
Abstract: 본 발명은, 많은 핀 수(pin counts)를 가진 고성능 디지털 IC 장치들을 얻을 수 있도록 하며 와이어 본드(wire bond) 기술을 사용하여 패키징되는 리드프레임을 기술한다.  본 발명에 따르면, 패들(paddle)의 구성은 리드프레임 디자인에 새로운 크기(dimension)를 부가하도록 수정된다.  바람직한 실시예에서, 선택된 와이어 본드들의 길이가 감소되도록 하나 이상의 슬롯들이 패들에 형성된다.  이는 기생 커패시턴스들(parasitic capacitances)에 대한 이러한 선택된 리드들의 자화율(susceptibility)을 감소시킨다.  선택된 리드들은 전형적으로 초고속 신호들을 반송하는 리드들이다. 
       
     와이어 본드, 리드프레임, 집적 회로, 리드 핑거, 패들
Patent KR-20070094075-A (KR)
Title: New variety whanggeum in pulsatilla species
Inventor: LEE DAE HE
IPC: A01H4/00
Filed: 2006-03-16
Abstract: A method for breeding "Hwanggeum" in Pulsatilla species is provided to develop and breed a new Pulsatilla species with a new flower color, longer peduncle and longer flowering time. A method for breeding "Hwanggeum" in Pulsatilla species comprises the steps of: (a) after cutting root from Pulsatilla koreana having purplish red colored flower and sterilizing it with 70% ethanol and a 10% solution of a commercially sold bleaching agent in sequence; (b) after dipping the root obtained from the step(a) in 1mg/l of EMS and washing it, treating it in a cold bath at a temperature of 5-10 deg.C for 10 seconds and treating it in a warm bath at a temperature of 40-45 deg.C for 5 minutes; (c) treating the root obtained from the step(b) with mutant inducing materials of 5mg/l of IAA, 650mg/l of NaN3, and 0.5mg/l of BAP; (d) selecting a novel species having light yellow flower from field application; and (e) after root-cutting the selected novel species through five generations, asexually reproducing stem or root thereof by tissue-culturing, cuttage or division. The Hwanggeum is characterized in that the plant height is 36-45 cm, the shape of leaves is long pinnate compound leaf, the color of leaves is light green, the length of leaflet is 7-9 mm, the width of leaflet is 5-7 mm, the color of flower is light yellow, the shape of flower is long oval, the number of flowers per plant is 8-15, the length of peduncle is 26-42 mm, the width of flower is 4-6 mm, the color of stigma is light yellow and the full blooming time is before and after May 7th.
Patent KR-20060031664-A (KR)
Inventor: LEE SU DAE
IPC: F22B9/00
Filed: 2006-03-23
Abstract: 본 발명은 고효율 증기보일러에 관한 것으로, 구체적으로는 급수관의 상과 하의 면이 평면이고 양쪽이 R형인 타원주형관을 사용하고 연소가스의 이동거리를 길게 하여 적은 연료를 사용하여 급수를 신속하게 증기로 만드는 고효율 증기보일러에 관한 것이다. 
     이를 위해, 본 발명의 증기보일러는 외부와 내부로 구성되어 있으며, 외부에는 보일러 본체에 예열기가 만들어져 있어 최초에 공급되는 급수는 예열기에 유입시켜 보일러내부의 잔열에 의해 가열된 후 보일러내부의 급수이동로를 지나 급수저장소로 이동하게 된다. 
     급수저장소에는 여러 개의 타원주형관들이 2열로 원통형으로 형성되어 있어, 급수는 여러 개의 관으로 분산되어 증기저장소로 이동하는 과정에서 연소가스의 열에 의해 가열되어 증기로 증기저장소에 운집된 후, 다시 증기저장소 외부와 내부 보조관의 연소가스 열에 의해 가열되고는 증기배출구로 배출되는 구조이다. 
     한편, 연소가스는 연소실에서 연소가스 유통관을 지나 1∼2차의 통로와 1∼3차의 연소가스 이동로로 이동하면서 타원주형관을 가열하여 급수를 증기로 만든후 증기저장소의 외부와 내부 보조관을 지나면서 증기저장소의 증기를 가열하고는 연소가스 배출구로 배출되는 구조이며, 1차와 2차의 통로는 서로 반대방향인 상단부와 하단부에 만듬으로써, 연소가스가 1∼3차의 연소가스 이동로로 이동할 때에는 연소가스의 진행방향이 위에서 아래로 아래서 위로 즉, 지그재그식으로 진행하기  때문에 연소가스의 속도가 감소될 뿐만 아니라 이동거리가 길어 연소가스의 열을 최대한 사용함으로써 신속하게 급수를 가열하여 증기를 만들도록 구성되는 것을 특징으로 한다. 
       
     펌프, 버너, 예열기, 타원주형관(타원기둥형관), 차단부재, 보조관
Patent KR-20070096598-A (KR)
Title: Metohd of representing information of internet community member and internet community connecting method using the same
Inventor: KIM DO SUNG
IPC: G06F17/00
Filed: 2006-03-27
Abstract: A method for displaying member information of an Internet community and an Internet community connecting method using the same are provided to enhance recognition and union of members belonging to the same real institution in past by integrally displaying a domain name of an real institution, community member ID information, and the domain name of the Internet community in one ID card. An ID card includes real institution ID information(10) including the domain name, the community member ID information(20), and the community ID information(30) including the domain name. The real institution ID information includes a logo(5) of the real institution. The community member ID information includes an avatar or more than one photo file(15). A member is connected to a sub community of the Internet community by combining/inputting a part of the domain name included in the real institution ID information and the part of the community domain name to a URL(Uniform Resource Locator) window.
Patent KR-20070097682-A (KR)
Title: Installation structure of finish materials for lightweight steel-frames
Inventor: KIM GI CHEOUL
IPC: E04B9/06
Filed: 2006-03-28
Abstract: An install structure of a finish material for lightweight steel-frames is provided to cross M-bars and carrying channels using a coupling clip to enable easy installation of the finish material without the installation space. An anchor bolt(10) includes a fixing member(12), a bolt(14), and a pair of nuts. A carrying channel(20) is provided on the upper surface with a cutting part(22) lengthwise. The carrying channel(20) includes penetration holes formed at certain intervals. The carrying channel(20) allows the anchor bolt(10) to pass through the penetration holes and to be fixed by the nuts. An M-bar(30) is provided with hook guide steps(32) curved inward while facing each other. The M-bar(30) crosses the carrying channel(20). A coupling clip(40) for coupling the carrying channel(20) to the M-bar(30) includes a hooking part, a support part, a receiving groove, and a protrusion.
Patent KR-20070098102-A (KR)
Title: Method of collecting and receiving a road traffic information and navigation terminal for performing the same
Inventor: JEOUNG EUY BUM
IPC: G08G1/0968
Filed: 2006-03-31
Abstract: A method of collecting and receiving road traffic information, and a navigation terminal for performing the same are provided to collect exact traffic information by transmitting optimal traffic information including link information of a road, speed information of a link, and local information. An activation of a traffic information collection mode is checked(S115). When the traffic information collection mode is activated, link information and an average speed of a vehicle corresponding to a traveling road are calculated(S120,S130). Traffic information format data having a local code corresponding to the traveling road is generated based on the link information and the average speed of the vehicle(S135). Wireless channel setting to a traffic information supplying server is requested(S140). The traffic information format data is transmitted through the set wireless channel(S150).
Patent KR-20070099223-A (KR)
Title: Hair care composition
Inventor: JEONG YEON KWAN
IPC: A61K8/19
Filed: 2006-04-04
Abstract: A hair care composition is provided to recover hair damaged by the outside environmental factors such as UV, frequent dyeing, discoloring, and permanent operation, prevent the damage of the hair, and recover damaged scalp as well as the hair. A hair care composition comprises 40-90 wt.% of at least one mineral selected from the group consisting of illite, germanium elvan, loss and jade, 2-12 wt.% of pine resin, 2-12 wt.% of rosemary, 2-12 wt.% of neem, 2-12 wt.% of peppermint and 2-12 wt.% of charcoal. To use the hair care composition, the hair care composition is added to or mixed with a hair-dyeing agent, a bleaching agent, a discoloring agent, a hair gel, a hair growth agent, a hair conditioner, a hair tonic, a hair cream, a hair spray, a hair mousse or a medicine for permanent wave.
Patent KR-20070101421-A (KR)
Title: Light emitting diode
Inventor: KIM JA YEON
IPC: H01L33/06
Filed: 2006-04-10
Abstract: An LED(Light Emitting Diode) is provided to enhance a light extraction efficiency, to prevent the degradation of characteristics of a P type GaN layer, to prevent the change of the P type GaN layer into an N type GaN layer and to form easily an ohmic electrode. An LED includes a substrate(100), a lower contact layer(200) made of an N type AlxGayInzN(0 <=x, y, z <=1) on the substrate, an active layer, an upper contact layer, an N type electrode, and a P type electrode. The active layer(300) is formed on a predetermined region of the lower contact layer. The active layer is composed of a barrier layer made of AlxGayInzN(0 <=x, y, z <= 1) and a single or multi quantum well structure made of AlxGayInzN(0 <= x, y, z <= 1). The upper contact layer is formed on the active layer(400). The upper contact layer is made of a P type AlxGayInzN(0 <=x, y, z <=1). The N type electrode(500) is formed on the lower contact layer. The P type electrode(600) is formed on the upper contact layer. The substrate has a photonic crystal structure.