baber/WOPTO huggingface dataset:
Patent KR-20100017258-A (KR)
Title: Method for producing a cleat sole
Inventor: SUSSMAN REINHOLD
IPC: B29D35/12
Filed: 2008-04-17
Abstract: The invention relates to a method for producing a sole (3) having at least one cleat (1) located on the underside (2) of the sole (3). In order to facilitate the removal of the soles having cleats from the injection mold, the invention proposes the following steps: a) producing at least one cleat (1), wherein the cleat (1) has a base cleat body (4) that can be connected to the sole (3), an extension (5) extending in the direction of the ground being provided on said body; b) inserting the cleat (1) in a holder (6), wherein the holder (6) has a congruently shaped receiving space (7) for at least part of the base cleat body (4) and for the extension (5); c) placing the cleat (1) together with the holder (6) in a recess (8) in an at least two-part injection mold (9, 10), so that part of the cleat (1) protrudes into the cavity (11) formed between the parts of the injection mold; d) injection molding at least part of the sole (3) by injecting plastic melt into the cavity (11) of the injection mold (9, 10), so that part of the cleat (1) is encapsulated by the plastic melt; e) removing the injection-molded sole (3) together with the encapsulated cleat (1) and holder (6) from the mold; f) removing the holder (6) from the cleat (1).
Patent KR-20100023853-A (KR)
Title: Modified-immobilized enzymes of high tolerance to hydrophilic substrates in organic media
Inventor: BASHEER SOBHI
IPC: C12N9/20
Filed: 2008-05-07
Abstract: Disclosed are preparations of modified interfacial enzymes, particularly lipases and phospholipases, immobilized on a solid support, wherein the enzyme is surrounded by hydrophobic microenvironment, thereby protected from deactivation and/or aggregation in the presence of hydrophilic agents, substrates and/or reaction products. The enzyme may be protected by being covalently bonded with lipid groups which coat the enzyme, or by being immobilized or embedded in a hydrophobic solid support. Also disclosed are processes for the preparation of the hydrophobically protected enzymes. The enzymes may be efficiently used in the preparation of biodiesel.
Patent KR-20100031508-A (KR)
Title: Hydrocarbon mixtures and use thereof
Inventor: DIERKER MARKUS
IPC: C09K23/00
Filed: 2008-06-12
Abstract: The invention relates to a hydrocarbon mixture that contains at least two hydrocarbons that are different from each other, the number of carbons thereof differing by more than one, said two hydrocarbons that different from each other make up at least 60 % in weight, preferably at least 70 % in weight of the total of the hydrocarbons. The invention also relates to the use of said hydrocarbon mixtures and to cosmetic and/or pharmaceutical preparations containing said hydrocarbon mixtures.
Patent KR-20100010513-A (KR)
Title: Input device and electronic apparatus provided with the input device
Inventor: MIYASAKA TAKESHI
IPC: H01H25/00
Filed: 2008-12-19
Abstract: Disclosed is an input device which has excellent operability and provides a desired operation touch. The input device is provided with a base (2); a case (4), which is cylindrical, mounted on the base (2) and has a plurality of arm sections (24) each of which has, on an inner surface, a pressing section (25) which is elastically deformable and can be pressed; an operating member (5) arranged on the base (2) so that the operating member can be operated to rock; a detecting member (3), which is arranged in a region surrounded by the case (4), and is provided with a first detecting section (17b) for detecting pressing operation of the pressing section (25) and a second detecting section (20) for detecting rocking operation performed by the operating member (5).
Patent KR-20100083721-A (KR)
Title: Method for controlling flow and concentration of liquid precursor
Inventor: SHIMIZU AKIRA
IPC: H01L21/02
Filed: 2010-01-11
Abstract: PURPOSE: A method for controlling the density and flow of a liquid precursor is provided to control the velocity of a carrier gas and a material gas by controlling the diameter of an orifice and line pressure. CONSTITUTION: The pressure of a carrier gas is controlled by an automatic pressure controller(1) in front of a precursor container(3). The carrier gas is provided to a precursor container through a pressure transducer(2). The carrier gas and the material gas are provided to a reactive chamber through an orifice(4). The velocity of the carrier gas and the material gas is determined by the line pressure and the diameter of the orifice. Valves(11,12) are installed between the automatic pressure controller and the pressure transducer. A pulsing valve(13) is installed in the downstream of the orifice.
Patent KR-20110083348-A (KR)
Inventor: JUNG EUI SU
IPC: F24C7/04
Filed: 2010-01-14
Abstract: 본 발명은 조리기기에 관한 것으로, 상세하게는 조리기기의 인식램프부에 관한 것이다.  
본 발명에 의한 조리기기는, 상면 외관을 형성하고, 상측에 음식물이 위치하는 상면유리; 상기 상면유리의 하측에 위치하여 내부 공간을 형성하는 쿡탑케이스; 상기 쿡탑케이스의 내부 공간에 위치하여 상기 음식물을 요리하기 위한 열을 발산하는 다수의 쿡탑히터; 상기 쿡탑히터의 가동 여부를 표시하는 인식램프부; 상기 인식램프부가 결합되어 고정되는 지지플레이트; 및 상기 지지플레이트에 제공되어 상기 인식램프부를 자체 탄성에 의해 지지하는 지지부; 가 포함된다. 이와 같은 본 발명에 의한 조리기기에 의하면, 인식램프부의 손상 및 탈거가 방지되는 장점을 가지게 된다.
Patent KR-20100027197-A (KR)
Title: System for applying for lending
Inventor: KIM JAE HYUNG
IPC: G06Q40/02
Filed: 2010-01-26
Abstract: PURPOSE: A loan application system using a cash dispenser apparatus is provided to apply the loan conveniently regardless of time and place within a loan available from a financial institute. CONSTITUTION: A cash dispenser apparatus transmits client unique identifying information and loan request amount information of the loan application client to a server(200). The server extracts the customer information corresponding to the unique identifying information from the storage media. The server extracts the condition of loan information corresponding to the customer information. A loan approval or denial message is transmitted according to the extraction result with the cash dispenser apparatus. The cash dispenser apparatus deciphers the lending approval or not right speciality.
Patent KR-20110088673-A (KR)
Title: Method and apparatus for managing paging area
Inventor: CHO HYUNG SOO
IPC: H04W68/02
Filed: 2010-01-29
Abstract: PURPOSE: A paging area management method is provided to reduce the amount of resources required for a paging notification in a network. CONSTITUTION: If the remaining time in a TA(Tracking Area) exceeds a reference time, UE(User Equipment) confirms the type of a currently assigned TAL(Tracking Area List)(511,513). If the currently assigned TAL type is for a high speed moving terminal, the terminal requests a TA update to a network manager(515). The terminal receives a new TAL from the network manager.
Patent KR-20110089732-A (KR)
Title: Image data transferring device
Inventor: LEE SANG GU
IPC: H04B7/24
Filed: 2010-02-01
Abstract: PURPOSE: An image information transmission apparatus is provided to transmit image information without the deterioration of resolution through Zigbee by using ubiquitous environment. CONSTITUTION: An image photographing module(110) obtains an analog image signal and converts the analog image signal into a digital image signal. An image control module(120) removes the digital image signal in a preset information region. A wireless communication module(130) transmits digital image information into the other image transmission device.
Patent KR-20110092154-A (KR)
Title: Clothes treating apparatus with minimized heat loss
Inventor: RYOO BYEONG JO
IPC: D06F58/26
Filed: 2010-02-08
Abstract: PURPOSE: A clothing management apparatus for minimizing heat loss is provided to improve energy efficiency by minimizing a heat loss generated in a process that hot wind generated by a heater is delivered to a drum. CONSTITUTION: A drum(120) is rotatably installed in the inside of a main body(102). An intake duct is installed in the main body and then the intake duct is communicated between the inside of the main body and the drum. A heater(150) is installed the inside of the intake duct. Heat radiation layers are formed among an inner wall of the drum, the inner wall of the intake duct, or all inner walls. If heat radiation layers are heated over a prescribed temperature, a heat is radiated.
Patent KR-20110092384-A (KR)
Title: Method for manufacturing compressed sawdust package and facility for manufacturing compressed sawdust package
Inventor: CHUNG SUNG KI
IPC: B27L11/06
Filed: 2010-02-09
Abstract: PURPOSE: A method for producing a compression sawdust package is provided to manufacture a compression sawdust package using the various materials of original material sawdust. CONSTITUTION: An original material sawdust is classified and refined(100). The original material sawdust is dried to have the specified range of the percentage of water content after the refinement and the classification(200). The dried sawdust becomes a compression sawdust block. The compression sawdust block with specified range of the percentage of water content is packed with a compression sawdust package. The original material sawdust is carried in. The original material sawdust which completes the refinement and the classification is stored in a sawdust reservoir.
Patent KR-20110093150-A (KR)
Title: Heat exchanger for a air-conditioner of a vehicle
Inventor: KIM JONG CHUL
IPC: F28F9/02
Filed: 2010-02-11
Abstract: PURPOSE: A heat exchanger for an air conditioner of a vehicle is provided to eliminate an assembly fault and the water leakage in a brazing processing by fixing a protrusion of the side plate to the insertion part of the header plate as the surrounded state. CONSTITUTION: A heat exchanger for an air conditioner of a vehicle comprises a first tank, a second tank, a core unit(160), and a side plate(130). In the first tank, the fluid flows into the side. The second tank is separately located in the vertical direction with the first tank. The fluid is flown out the side. The both end parts are communicated in the first tank and second tank. The core unit comprises a plurality of tubes and a plurality of radiation fins which are arranged between the tubes. The side plate is located in both sides of the core unit and supports the side of the core. In order that the protrusions formed in both end parts of the side plate are inserted and are fixed. The insertion unit of deep drawing is formed between the header plate(140) of the first tank and header plate of the second tank.
Patent KR-20110093191-A (KR)
Title: Antibiotics-producing a novel strain of streptomyces sp. bcnu 1001 and composition using the same
Inventor: JOO WOO HONG
IPC: C12R1/465
Filed: 2010-02-12
Abstract: PURPOSE: A novel Streptomyces sp. BCNU 1001 strain isolated from soil and an antibacterial composition using the same are provided to be used as a skin therapeutic agent. CONSTITUTION: A Streptomyces sp. BCNU 1001(deposit number: KCTC 18186P) has an antibacterial activity. An antibacterial composition contains the Streptomyces sp. BCNU 1001 strain, suspension or culture liquid of the strain, or supernatant of the culture liquid. The composition has an antibacterial activity against Bacillus subtilis, Micrococcus luteus, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Pseudomonas fluorescens, Aspergillus niger, Candida albicans, Filobasidium neoformans, or Trichophyton rubrum.
Patent KR-20100107406-A (KR)
Title: Control apparatus for automatic transmission
Inventor: HIRASAKO KAZUKI
IPC: B60W10/04
Filed: 2010-03-24
Abstract: PURPOSE: A control apparatus for automatic transmission is provided to prevent the shock of shifting a gear by setting a start timing and suppressing the shock of a recovery. CONSTITUTION: A change speed pressure correction controller(S1) measures physical quantity indicating the state of change speed and correct the command pressure of a friction element. A torque controller(S3) outputs a command for increasing the torque of a driving source. A determination unit determines the changed speed by the torque controller is converged to a command value.
Patent KR-20110108460-A (KR)
Title: 코인형 영구자석을 이용하여 동력에너지를 얻는 방법
Inventor: PARK JUNG IL
IPC: H02K53/00
Filed: 2010-03-29
Abstract: 본 발명은 코인형 고정영구자석의 내부와 외부를 돌아 폐합되어 흐르는 자속이 이동영구자석의 자속을 밀거나 끌어 돌게 함으로써 이동영구자석이 운동에너지를 얻도록 할 수 있는 방법에 관한 것이다. 
       
     코인형 고정영구자석, 이동영구자석, 운동에너지
Patent KR-20100109493-A (KR)
Title: Enhanced preparation method of dipeptidyl peptidase-iv inhibitor and intermediates thereof
Inventor: KWAK WOO YOUNG
IPC: C07C219/06
Filed: 2010-03-30
Abstract: PURPOSE: A manufacturing method of a dipeptidyl peptidase-IV inhibitor intermediate is provided to economically manufacture the intermediate, and to use the method for mass producing. CONSTITUTION: A manufacturing method of a dipeptidyl peptidase-IV inhibitor intermediate comprises the following steps: using a grinard reactant to ring-open an aziridine ring; and hydrolyzing the outcome form the previous step and applying an amine protecting group to form the dipeptidyl peptidase-IV inhibitor intermediate. The amine protecting group is buthoxycarbonyl or benzyloxycarbonyl.
Patent KR-20110110988-A (KR)
Inventor: LEE JAE HOON
IPC: G06Q40/02
Filed: 2010-04-02
Abstract: 본 발명은 영업사원이 카드발급시스템을 들고다니면서 PerSAM카드를 사용하여 고객에게 IC카드를 즉시 발급할 수 있는 무선발급시스템 및 이를 이용한 보안처리방법에 관한 것이다. 
본 발명인 무선발급시스템은 키, CSN 및 PerSAM핀을 입력받아 PerSAM핀을 암호화하여 PerSAM카드를 발급하는 PerSAM발급시스템; 상기 PerSAM발급시스템으로부터 CSN, 암호화된 PerSAM핀을 전달받아 저장하고, 카드발급시스템으로부터 CSN을 전달받아 CSN을 검증하고 상기 카드발급시스템에 암호화된 PerSAM핀을 전달하는 운영시스템; 및 상기 PerSAM카드를 읽어 들이며 CSN을 상기 운영시스템에 전달하고 PerSAM핀을 인증처리후 IC카드를 발급하는 카드발급시스템;을 포함한다.
Patent KR-20110113813-A (KR)
Inventor: KIM JAE YOUNG
IPC: A61K9/51
Filed: 2010-04-12
Abstract: 본 발명은 세포 이식용 캡슐에 관한 것이다. 
이식한 세포의 기능 소실의 주된 원인으로 세포의 생존율 저하를 들 수 있고 이를 해결하기 위해 세포 보호를 목적으로 캡슐화를 시도하고 있지만, 캡슐화된 세포의 저산소 상태 등으로 인해 이식 성과가 좋지 않았다. 본 발명은 산소 운반체로서 퍼플루오르카본 화합물의 에멀전을 캡슐 내에 도입함으로써 캡슐 내 산소의 확산을 용이하게 하여 저산소 배양 시에도 캡슐 내의 세포 생존율을 향상시킬 수 있음을 확인하였다. 따라서 본 발명에 따른 세포 이식용 캡슐은 저산소 상태에 대한 내성을 가짐으로써 세포 이식 성과의 향상에 기여할 수 있다.
Patent KR-20110115257-A (KR)
Inventor: WON YONG SEOK
IPC: A61K36/284
Filed: 2010-04-15
Abstract: 본 발명은 보두를 포함하는 한방약재의 법제방법에 관한 것으로, 보다 구체적으로는 보두를 끓는 들기름에서 튀긴 후 건조시킨 다음 분말화하는 제1단계; 백출(白朮)과 창출(蒼朮)을 쌀뜨물에 담가 제독한 후, 그늘에서 건조시키는 제2단계; 준비된 인삼을 세분하고 그늘에서 건조시키는 제3단계; 진피, 감초와 갈근을 각각 물에 씻은 후, 그늘에서 건조시킨 다음, 세분하는 제4단계; 공사인(貢砂仁) 화초(火炒)를 준비하는 제5단계; 준비된 계내금(鷄內金)을 그늘에서 건조시킨 후 분쇄하는 제6단계; 상기 제1단계 내지 제6단계에서 준비한 보두, 백출, 창출, 인삼, 진피, 감초, 갈근, 공사인화초 및 계내금을 혼합한 후 분말화하는 제7단계; 및 상기 분말화된 혼합물을 벌꿀로 버무려 환(丸)을 제조하는 제8단계;를 포함하여 이루어지는 것을 특징으로 하는 환 제형의 한방약제의 제조방법에 관한 것이다. 본 발명에 의하여 제조되는 한방약제는 가정에서도 손쉽게 조제할 수 있고 그 섭취가 매우 용이하다는 장점이 있으며, 이러한 한방약제를 복용시 중풍, 관절염, 신경통 등에 효과가 있으며 내장의 보호 및 주해해독의 효과가 탁월하며 구강 내의 단 냄새 발생을 억제하는 효과를 얻을 수 있다.
Patent KR-20110010543-A (KR)
Title: Operation method of rfid tag, operation method of rfid reader, rfid tag and rfid reader
Inventor: MO HEE SOOK
IPC: H04B5/02
Filed: 2010-04-15
Abstract: PURPOSE: An RFID tag and an RFID reader for downloading tag data of high capacity at high speed are provided to continuously read the tag data without interrupting the reading of tag data. CONSTITUTION: A first RFID(Radio Frequency Identification System) reader(200_1) transmits a download command to an RFID tag(100). A memory bank(122) is classified into a plurality of record blocks. The RFID tag stores tag data to the record blocks within the memory bank. The RFID tag transmits the tag data in a record block unit.
Patent KR-20110115398-A (KR)
Inventor: KIM SUNG JEE
IPC: A61K31/122
Filed: 2010-04-15
Abstract: 본 발명은 pH 민감성 금속 나노 입자에 항암제를 결합하여 암세포에서 분리함으로서, 암세포내에 효과적으로 항암제를 전달하는 방법에 관한 것이다. 본 발명에 따른 pH 민감성 금속 나노입자는 광열치료에 의해 가열될 수 있어, 분리된 항암제와 함께 암세포를 효과적으로 사멸한다.
Patent KR-20110119330-A (KR)
Title: 클러치를 구비하지 않는 변속 장치 및 그 제어 방법과 이를 이용하는 차량
Inventor: YOON YONG SAN
IPC: B60K6/22
Filed: 2010-04-27
Abstract: 클러치를 구비하지 않는 차량용 변속 장치가 개시된다.  변속 장치는 구동기어열을 구비하는 입력축 및 상기 구동기어열와 맞물리는 종동기어열을 구비하는 출력축을 갖는 변속 기어열과, 차량의 엔진의 출력축과 상기 변속 기어열의 입력축 사이 또는 상기 변속 기어열의 출력축과 차량의 구동 바퀴축 사이에 배치되고, 차량의 변속 작동시 서로 맞물리는 구동기어와 종동기어의 기어비에 따라 상기 변속 기어열의 입력축의 회전 속도와 상기 변속 기어열의 출력축의 회전 속도가 동기화되도록 조절하는 동기화 장치를 포함한다.
Patent KR-20110120463-A (KR)
Title: Semiconductor device and opeating method of the same, memory system
Inventor: PARK NAK KYU
IPC: G11C5/14
Filed: 2010-04-29
Abstract: PURPOSE: A semiconductor device, an operation method thereof, and a memory system are provided to reduce a current consumed in a semiconductor device by making the power down mode of an internal circuit during the locking operation of a clock supply circuit. CONSTITUTION: In a semiconductor device, an operation method thereof, and a memory system, a clock supply circuit(220) generates an internal clock. An internal circuit(210) is synchronized with the internal clock. The internal circuit is entered into a power down mode in response to a power down signal. A controller(230) controls a clock supply circuit to be entered into the power down mode.
Patent KR-20110125355-A (KR)
Title: Electronic device, method of transferring information of the same, method of controlling the same, and method of transferring and receiving information of information system
Inventor: KANG MIN HUN
IPC: H04L12/28
Filed: 2010-05-13
Abstract: PURPOSE: A method for transceiving information of an information system, a control method of an electronic device, an information transmitting method of the electronic device, the electronic device are provided to effectively provides a plurality of electronic devices. CONSTITUTION: A wireless communication unit(110) communicates with an external electronic device. A control unit automatically performs operation related to the reception of the content based on the received source information if information about an external source providing content is received through the wireless communication unit from the external electronic device. The information about external source providing content includes the information about a web site. The wireless communication unit includes a module for connecting the internet.
Patent KR-20100125190-A (KR)
Title: Acid-labile ester monomer having spirocyclic structure, polymer, resist composition, and patterning process
Inventor: KINSHO TAKESHI
IPC: G03F7/004
Filed: 2010-05-19
Abstract: PURPOSE: An acid-leaving ester type monomer is provided to be useful as a monomer for manufacturing a base resin of a radiation-sensitive resist material with good resolution. CONSTITUTION: An acid-leaving ester type monomer with a spiro ring structure is represented by chemical formula(1). In the chemical formula(1), Z represents a monovalent group with a polymerizable double bond, X is a divalent group forming substituted or unsubstituted cyclopentane ring or norbornane ring; R^2 represents hydrogen atom, or C1-10 linear, branched or cyclic monovalent hydrocarbon radical; and R^3 and ane R^4 represents hydrogen atom, or C1-10 linear, branched or cyclic monovalent hydrocarbon radical; and n is 1 or 2.
Patent KR-20110134980-A (KR)
Title: Handpiece where uses the semiconductor luminous element
Inventor: HA TAE HO
IPC: A61N5/06
Filed: 2010-06-10
Abstract: PURPOSE: A handpiece using a semiconductor light emitting device is provided to maximize convenience of use by individually or simultaneously cooling the heat of the skin generated after laser treatment. CONSTITUTION: A handpiece using a semiconductor light emitting device comprises: a light transmissive guide(20) which is formed inside a main body housing of a handpiece(10) so that an end tip can be projected from the outside; a light source generation part(30) which is formed in the rear of the light transmissive guide; and a heat sink block(40) which is formed in one side of light source generation part.
Patent KR-20110135040-A (KR)
Inventor: MOON KYUNG MAN
IPC: C23G1/14
Filed: 2010-06-10
Abstract: PURPOSE: A zinc hot dip galvanizing method by using omission technology of water washing is provided to maintain intrinsic performance of flux liquid even if a rinse process is omitted after pickling. CONSTITUTION: A zinc hot dip galvanizing method by using omission technology of water washing comprises a pickling process without washing process, a flux liquid immersion process, a molten metal furnace immersion process, a cooling process. The ammonium hydroxide and aluminum hydroxide are added in the flux liquid to maintain properties of the flux liquid. The flux liquid is made from 0.5~1.5 parts by weight of comparison ammonium hydroxide and 1.0~3.0 parts by weight of aluminum hydroxide based on 200 parts by weight of entire flux liquid. The flux immersion process is performed in 50°C~80°C for 1~10 minutes.
Patent KR-20110135282-A (KR)
Title: In-line apparatus having a wireless automatic test equipment and dicing equipment and operation method thereof
Inventor: JEONG BYEONG HO
IPC: H01L21/301
Filed: 2010-06-10
Abstract: PURPOSE: An inline apparatus and an operation method thereof are provided to apply a wireless signal and wireless power to a semiconductor wafer, thereby performing a dicing process and electrical inspection process with respect to a semiconductor chip. CONSTITUTION: A semiconductor wafer is inserted into a loading part(400). An inspection part performs an electrical inspection process with respect to the semiconductor wafer through a wireless signal and wireless power. A dicing part(600) separates an individual semiconductor chip from the inspection-completed semiconductor wafer. An unloading part(700) discharges the dicing-completed semiconductor wafer to the outside of equipment. The semiconductor wafer comprises a wireless signal transceiver part, a wireless signal control part, and a wireless power generation part in the inside.
Patent KR-20120000860-A (KR)
Title: Circuit board assembly using electrode and manufacturing method thereof
Inventor: SHIN YOUNG EUI
IPC: H05K3/46
Filed: 2010-06-28
Abstract: PURPOSE: A circuit board assembly using an electrode bar laminating and a manufacturing method thereof are provided to minimize heat generation which is generated in the high density mounting process of the circuit boards by laminating more than two circuit boards into a multilayer at high density. CONSTITUTION: A circuit board assembly(200) includes more than two circuit boards(210, 220) and one or more electrode bars(230). A circuit or semiconductor chips(211, 221) are formed in each circuit board. The printed circuit board can be a printed circuit board with a printed circuit. Lateral electrodes(212, 222) are formed in the side of each circuit board. The lateral electrode is connected to the output terminal of the circuit or a semiconductor chip. The lateral electrode is formed in the four sides of each circuit board. The lateral electrode is used for electrically connecting two different circuit boards.
Patent KR-20120001084-A (KR)
Title: Highly efficient carbazole type compound and organic light emitting device including the same
Inventor: LEE JUN YEOB
IPC: H01L51/50
Filed: 2010-06-29
Abstract: PURPOSE: An organic electroluminescent device is provided to improve the problems of existing organic electroluminescent device, which are unstable thermal stability, low efficiency and especially efficiency characteristic in the pure blue phosphorescence device. CONSTITUTION: A highly efficient carbazole based compound for an organic electroluminescent device is in the chemical formula 1. In the chemical formula 1, Ar is substituted or non-substituted C6-50 aryl group, or substituted or non-substituted C5-50 heteroaryl. Y^1 - Y^5 is oxygen, sulfur or selenium atom, respectively. Ar^1 - Ar^10 is substituted or non-substituted C6-50 aryl group, or substituted or non-substituted C5-50 hetero aryl. R^1 - R^4, of which portion or all is hydrogen, respectively and independently, is a unit which doesn't expand a carbazole unit conjugation structure. R^1-R^4 is same or different substituent, respectively.