baber/WOPTO huggingface dataset:
Patent KR-20030040103-A (KR)
Title: Cathode ray tubes having damper wire support springs
Inventor: RAGLAND FRANK ROWLAND JR
IPC: H01J29/07
Filed: 2002-11-12
Abstract: PURPOSE: A cathode ray tube with a damper wire support spring is provided to achieve an improved means for damping vibrations in such tubes having a tension mask. CONSTITUTION: A cathode ray tube with damper wire support spring comprises a tension mask(30) attached to a support frame(38) mounted within the tube. The tension mask comprises damper wire support springs(60) attached to and extending from opposite sides of the support frame. The damper wire support springs comprises a compliance section(62), and a damper wire(58) supported by the compliance section of the damper wire support springs whereby the damper wire is in contact with the surface of the tension mask, wherein the damper wire support springs comprise a holding member secured to and extending from opposite sides of the support frame and supporting the compliance section.
Patent KR-20040043044-A (KR)
Title: Silicon/Oxide/Nitride/Oxide/Silicon nonvolatile memory with vertical channel and Fabricating method thereof and Program method
Inventor: KIM JEONG U
IPC: H01L29/792
Filed: 2002-11-15
Abstract: PURPOSE: A non-volatile SONOS(Silicon-Oxide-Nitride-Oxide-Silicon) memory having a vertical channel, a manufacturing method thereof, and a program method are provided to be capable of improving the degree of integration. CONSTITUTION: A non-volatile SONOS memory having a vertical channel is provided with a substrate(101), the first insulating layer(103) deposited on the substrate, and a semiconductor layer(105) patterned into a predetermined type structure on the first insulating layer. At this time, the semiconductor layer includes a source and drain electrode spaced apart from each other. The non-volatile SONOS memory further includes the second insulating layer(107) between the source and drain electrode on the semiconductor layer, a memory layer(109) selectively deposited on the resultant structure, and a gate electrode(111) deposited on the memory layer for controlling the electron mobility of the memory layer. The memory layer includes an electron mobility channel and an electron storing layer.
Patent KR-20040043066-A (KR)
Inventor: WON CHAN HUI
IPC: E04B7/16
Filed: 2002-11-15
Abstract: PURPOSE: A tunnel type roof is provided to be well ventilated by opening a portion of a roof widely and to control opening/closing of a roof properly according to a change of seasons. CONSTITUTION: The tunnel type roof contains columns installed on both sides of a passage at regular intervals, an inner horizontal frame(3) and an outer horizontal frame(4) fixed to the top of the column, many fixed roofs(5) whose both ends are fixed to the outer horizontal frame(4) arranged on the passage at regular intervals to cover up in the shape of a tunnel, a tunnel-shaped movable roof(6) placed between the fixed roofs(5) to move in the fixed roof(5) along a rail(7) fixed longitudinally on the upper part of the inner horizontal frame(3), and a movable unit moving the movable roof(6) from side to side.
Patent KR-20030042415-A (KR)
Title: Bow form of ship
Inventor: IWASAKI YASUNORI
IPC: B63B1/06
Filed: 2002-11-20
Abstract: PURPOSE: To solve the problem of a conventional technique that any vessel having a large water plane angle cruising at a speed of a middle range causes a large bulge of the water surface, which may cause a wave collapse from the wave top of a bow wave, resulting in greater wave resistance at the bow, and leads to a large increase in engine power and an increase in fuel consumption. CONSTITUTION: The middle speed vessel having a box-shaped hold and cruising at a comparatively higher speed than a tanker or bulk carrier and having a field number of 0.18-0.23, is structured so that the bow forefront line forming the bow profile is made approximately identical to the front perpendicular line and also made approximately identical to the forefront of the vessel about its overall length, by extending from the bow bottom position below the designed load draft line approximately vertical up to the upper deck and also the water plane shape of the approximately vertical range is made acute.
Patent KR-20040047040-A (KR)
Title: Crime prevention system of entrance door
Inventor: LEE MYONG HUN
IPC: G08B25/10
Filed: 2002-11-28
Abstract: PURPOSE: A gate guard system is provided to simplify a structure and enhance the efficiency by switching a communication mode to a warning mode or the warning mode to the communication mode. CONSTITUTION: A gate guard system includes a control unit, a transmitting unit, and a portable receiving unit. The control unit(20) includes a communication mode, a warning mode, and a conversion mode. The communication mode is used for transferring a pushing state of a doorbell switch. The warning mode is used for transferring a detection signal according to a state of the gate. The conversion mode is used for setting and controlling the communication mode and the alarm mode. The transmitting unit transmits each signal of the communication mode and the warning mode. The portable receiving unit(40) transfers a setting signal of the transmitting unit to a user.
Patent KR-20040048091-A (KR)
Title: Detecting Device for Residual Fuel of Vehicles
Inventor: LEE GEUN HUI
IPC: G01F23/30
Filed: 2002-12-02
Abstract: PURPOSE: An apparatus for detecting a remaining amount of fuel in a vehicle is provided to send exact information about an amount of fuel to an operator by delaying flowing of a float under a driving condition in which information about the amount of fuel is not found by the operator. CONSTITUTION: An apparatus for detecting a remaining amount of fuel in a vehicle includes a display unit, a float guide tube(5), and a doughnut-shape float(6). A fuel amount detecting unit(2) is installed in a fuel tank having a predetermined volume. The display unit for the car allows an electronics control unit(3) to display an amount of a fuel on the display unit(4). The float guide tube(5) has an upper surface part fixed and sealed by a cover(12) and a lower end part installed in a vertical direction such that the lower end part reaches a floor of the fuel tank(1).
Patent KR-20040007204-A (KR)
Title: Clamping nut and tool holder with the clamping nut, and spanner
Inventor: KOMINE TSUYOSHI
IPC: B25B13/46
Filed: 2002-12-09
Abstract: PURPOSE: To provide a clamping nut, a tool holder having this nut, and a spanner for clamping the clamping nut for improving rotational efficiency by preventing fastening force from acting inside in the radial direction on a converting part formed on the inner periphery of the clamping nut, when rotating the clamping nut. CONSTITUTION: In the clamping nut 50, an annular groove 59 non-contacting with the spanner 100 is formed in an annular shape along the outer periphery in at least a part of an area corresponding to a female screw 51 of an outer peripheral part of the clamping nut 50. In the spanner 120, a noncontact area 122 non-contacting with at least a part of the area corresponding to the female screw 51 of the clamping nut 50 is formed in an annular shape along a gripping part in the gripping part for gripping the outer peripheral part of the clamping nut 50.
Patent KR-20040050507-A (KR)
Title: Method for fabricating semiconductor device
Inventor: CHOI CHANG IL
IPC: H01L21/8247
Filed: 2002-12-10
Abstract: PURPOSE: A method for manufacturing a semiconductor device is provided to improve topology, prevent a dishing phenomenon, and restrain the generation of particles by depositing a polysilicon layer two times. CONSTITUTION: An isolation layer(13) is formed in a semiconductor substrate(11). The first polysilicon layer(15) is formed on the entire surface of the resultant structure. A resist layer(17) is formed on the first polysilicon layer. The second polysilicon layer(19) is formed on the resist layer. A CMP(Chemical Mechanical Polishing) process is carried out on the second polysilicon layer, the resist layer, and the first polysilicon layer for the planarization of the resultant structure. Preferably, the thicknesses of the first and second polysilicon layer are about 1000 and 700 angstrom, respectively.
Patent KR-20030051339-A (KR)
Title: Joining method and apparatus of single veneer piece
Inventor: TSUTSUI MIKIO
IPC: B27D1/10
Filed: 2002-12-16
Abstract: PURPOSE: Apparatus and method for joining veneer single piece are provided to enhance adhesion and to give a better processing efficiency. CONSTITUTION: In the process of carrying a single veneer piece(T) in the orthogonal direction against the joining edge(Te) on the conveyor, the joining edges of the preceding and succeeding single veneer pieces come close together, an adhesive material(Sd) is supplied to the clearance between the joining edges, and then the adhesion enhancing action is supplied to the adhesive material to join each single veneer piece successively. The adhesion enhancing action is applied within the adhesion enhancing section(as indicated by the lines Z1 and Z2), provided on the farther side from the edge approaching position (U) via an adhesion enhancing component(6) to move back and forth at any time while the single veneer piece is being carried or such a motion is halted. Such adhesion enhancing action is applied first to the adhesive material which is supplied for adhering the joining edge positioned at all times on the farthest side in a carrying direction.
Patent KR-20040053830-A (KR)
Title: Semiconductor device fabrication equipment for improving efficiency of removing particle
Inventor: YOON GI YEONG
IPC: H01L21/306
Filed: 2002-12-16
Abstract: PURPOSE: Semiconductor device manufacturing equipment is provided to enhance the efficiency of exhausting particles by using a pair of vacuum lines having vacuum pumps. CONSTITUTION: Semiconductor device manufacturing equipment is provided with a process chamber(1), the first and second vacuum line(32,34) connected with the process chamber, and the first and second vacuum pumps(31,33) between the vacuum lines and the process chamber. At this time, the vacuum pumps are capable of being independently operated. And, the semiconductor device manufacturing equipment further includes valves between the vacuum lines and process chamber for controlling a switching operation.
Patent KR-20030089402-A (KR)
Title: Automatic tape dispenser
Inventor: JANG HUI SEOK
IPC: B65H35/00
Filed: 2002-12-18
Abstract: PURPOSE: An automatic tape dispenser is provided to smoothly rotate a feed roller and a guide roller, and to remove the space between the feed roller and the guide roller. CONSTITUTION: In an automatic tape dispenser, a plurality of feed side ring-shaped units(13) are formed at the shaft(11) of a feed roller(10). A plurality of guide side ring-shaped units(33) are formed at the shaft(31) of a guide roller(30). The interval between the feed side ring-shaped units is wider than the width of the guide side ring-shaped units. The interval between the guide side ring-shaped units is wider than the interval between the feed side ring-shaped units. A tape roll preventing unit is installed at the rear of the feed roller, and has a plurality of protruding pins inserted between the feed side ring-shaped units.
Patent KR-20030053452-A (KR)
Title: A method and apparatus for reassembly of data blocks within a network processor
Inventor: DAVIDSON JOEL R
IPC: H04L29/06
Filed: 2002-12-21
Abstract: PURPOSE: A method and an apparatus for reassembling data blocks within a network processor are provided to reassemble the data blocks and convert the data blocks into data packets with original component in the network processor. CONSTITUTION: A preprocessor(12) assigns the same queue identifier to each data block from the same packet. A reassembler(14) groups together all data blocks having the same queue identifier, and assigns a packet identifier to each data block. The same packet identifier is assigned in all data blocks reassembled into the same packet. A data buffer(26) stores the data blocks according to the assigned packet identifier.
Patent KR-20030009260-A (KR)
Title: by quick guard control matter of underwater cutting for waterjet cut
Inventor: JUN JUN BAE
IPC: B26F3/00
Filed: 2002-12-21
Abstract: PURPOSE: A water-jet cutter is provided to cut workpieces in water and to reduce noise when cutting the workpieces by cutting the workpieces in water. CONSTITUTION: In a state that workpieces are fixed, a spraying nozzle(38) is moved in X, Y, and Z-directions by means of an actuating section(30) so as to cut the workpieces. A supporting table(31) having a sub motor(32) and a screw(33) is provided in an X-axis direction of the actuating section(30). A conveying table(34) having a sub motor(35) and a screw(37) is provided in a Y-axis direction of the actuating section(30). A sub motor(36) for moving the spraying nozzle(38) is provided in a Z-axis direction of the actuating section(30). A partition is formed at the center of a body(10) so that the body(10) is divided into two working chambers(11). Air tanks(20) with air inlets are formed at each side of the working chambers(11). A lower part of the air tanks(20) are open to the working chambers(11). Water levels are controlled by supplying air into the air tanks(20) through air inlets.
Patent KR-20040057668-A (KR)
Title: Encoded bit repetition apparatus and method
Inventor: KIM JIN BEOM
IPC: H04J13/00
Filed: 2002-12-26
Abstract: PURPOSE: An encoded symbol repetition method is provided to perform a repetition operation of a transmission end by using adding, subtracting, and looping processes instead of multiplying and dividing processes in a communication system supporting a flexible data rate, thereby remarkably reducing hardware logic size. CONSTITUTION: A system initializes an update temporary value, an encoded symbol, and an interleaver index to '0'(S10). The system compares the update temporary value with an interleaver size(S11). If the update temporary value is bigger than or equal to the interleaver size, the system determines to interleave the encoded symbol without carrying out a repetition process(S12). If the update temporary value is smaller, the system carries out the repetition process for the encoded symbol(S13). The system adds the number of input symbols to the update temporary value, and increases the interleaver index by '1'(S14).
Patent KR-20040059765-A (KR)
Title: Method for fabricating silicide region in CMOS image sensor
Inventor: HWANG JUN
IPC: H01L27/146
Filed: 2002-12-30
Abstract: PURPOSE: A method for fabricating a CMOS(complementary metal oxide semiconductor) image sensor is provided to reduce contact resistance by performing a silicide formation process or a plug ion implantation process in a process for forming a contact in an active region of a pixel region. CONSTITUTION: An interlayer dielectric for a metal interconnection is formed on a semiconductor substrate(20) having relative devices like a photodiode. An insulation layer is formed on the interlayer dielectric and is patterned to selectively expose the surface of the interlayer dielectric. The exposed interlayer dielectric is eliminated to selectively expose the active region of the pixel region. The insulation layer is removed, and silicide(29) is formed in the exposed active region. The metal interconnection(30) is formed on the interlayer dielectric.
Patent KR-20040060077-A (KR)
Title: Polyurethane Type Soundproofing Between Floors And Pour-in-Place Method
Inventor: KIM SEONG GIL
IPC: E04F15/20
Filed: 2002-12-30
Abstract: PURPOSE: A construction method of polyurethane interlayer sound insulation materials is provided to improve workability by simplifying a construction work, to have excellent flame resistance and to prevent the spread of fire. CONSTITUTION: The construction method of polyurethane interlayer sound insulation materials comprises the steps of forming an interlayer sound insulating layer(50) on a concrete slab layer(10), forming a primer layer(51) by coating the upper part of the concrete slab layer(10) with polyurethane prepolymer, forming a sound absorbing layer(52) by foaming polyurethane foam at room temperature, and forming an interlayer sound insulating layer(50) by forming a sound insulating layer(53) by coating high-hardness polyurethane upward, then constructing a lightweight aerated concrete layer(20), heating pipelines, a finishing mortar layer(30) and a floor decorating material(40) in order.
Patent KR-20040060483-A (KR)
Title: method for forming a capacitor in a semiconductor device
Inventor: KIM SEOK SU
IPC: H01L27/108
Filed: 2002-12-30
Abstract: PURPOSE: A method for fabricating a capacitor of a semiconductor device is provided to enhance the reliability of the capacitor by using an insulating material instead of a metal material to perform a function of an etch-stop layer. CONSTITUTION: A bottom electrode layer of a capacitor is formed on a substrate(20). A bottom electrode(22a) of the capacitor is formed by performing an etch process using the first pattern mask to pattern the bottom electrode layer. A dielectric layer of the capacitor is formed on the bottom electrode and the substrate. A top electrode layer of the capacitor is formed on the dielectric layer. A top electrode(26a) and a dielectric(24a) are formed by performing the etch process using the second pattern mask to pattern the top electrode layer and the dielectric layer.
Patent KR-20020047126-A (KR)
IPC: C23C16/04
Filed: 2000-08-24
Abstract: 원하는 물질들 상에 선택적인 증착을 개시한 방법이다.  더 자세히 말하면, 장벽 물질들은 전도체 표면에 비해 절연 표면 상에 선택적으로 형성된다.  이 방법은 접촉 형성과 트렌치 충진, 특히 상감 및 이중 상감 금속화에 관련하여, 장벽 물질로 절연 표면(12, 13)을 라이닝하는 유리한 점이 있다.  선택적인 형성은 "바닥이 없는" 증착을 허용하며, 따라서 절연 표면(12, 13)에 장벽이 형성된 후 더 전도성이 있는 물질(18)이 개구부(22)에 증착될 때 직접적인 금속 대 금속 접촉을 위해 노출된 통로 바닥에 전도체 물질(20)이 남겨진다.  바람직하게는, 선택적인 증착이 원자층 증착(ALD)에 의해 수행되며, 개구부에 절연 측벽(12, 13)의 고 등각적인 커버리지를 가져온다.
Patent KR-20020056929-A (KR)
IPC: F16L55/00
Filed: 2001-09-21
Abstract: 물을 유통시키는 모관(22)에 접속된 분기 배관(12)의 수배관 구조에 있어서, 모관(22)와 분기 배관(12)의 사이, 혹은 분기 관로내에 캐버티 플로 억제 수단(30)을 설치하고, 폐색 분기 관로내에 생기는 캐버티 플로를 억제함으로써, 상기 캐버티 플로에 의해 형성되는 열 성층에 근거하는 배관으로의 악영향을 배제하도록 한 배관 구조이다.
Patent KR-20020060244-A (KR)
IPC: C30B33/00
Filed: 2001-11-01
Abstract: 어닐하는 웨이퍼(100)로부터의 경사각도와, 어닐 후의 표면에 발생하는 헤이즈와의 관계를 분명하게 하고, 헤이즈의 발생을 억제하는데 최적의 경사각도를 설정하며, 헤이즈가 억제되는 결과로서 디바이스 특성을 향상시킬 수 있는 어닐 웨이퍼의 제조방법을 제공한다.  (100) 또는 이와 등가의 면에 대하여 경사각도 θ가 0.1°< θ < 0.2°의 범위 내에 경사진 면방위를 가지는 실리콘 경면 웨이퍼를 수소 가스, 불활성 가스, 질소 가스 또는 이들의 혼합 가스 분위기 안에서 가열처리하도록 하였다.
Patent KR-20020080347-A (KR)
Title: 환원성 염료의 전기화학적 환원법
IPC: D06P5/20
Filed: 2000-12-21
Abstract: 본 발명은 전기전도성 물질의 지지체 및 그 위에 알루비에이션(alluviation)에 의해 동일 반응계에서 형성된 전기전도성의 캐쏘드-분극층을 포함하는 캐쏘드와 환원성 염료를 접촉시킴으로써 환원성 염료를 전기화학적으로 환원시키되, 상기 전기화학적 환원이 염기의 존재하에서 수행하는 것을 포함하는 환원성 염료의 전기화학적 환원법에 관한 것이다.
Patent KR-20030004319-A (KR)
Title: Method for preparing an interfrequency handover, a network element and a mobile station
IPC: H04B7/26
Filed: 2001-01-09
Abstract: A method ( 600 ) for preparing an interfrequency handover of a certain communication connection from a first frequency to a second frequency features periodically intermitting ( 603 ) the transmission/receipt of data on the first frequency for certain transmission gaps. The number of transmission gaps is at least one during each transmission period and a certain sequence of transmission periods ( 420, 520 ) is used. Measurements are performed ( 607 ) on the second frequency during the transmission gaps on the first frequency. In the step of intermitting the transmission/receipt of data the transmission/receipt of data is intermitted within at least on transmission period for a certain transmission gap ( 311, 411 ) having a first duration and for a certain second transmission gap ( 312, 412 ) having a second duration. The second duration is different from the first duration. A mobile station ( 700 ), a network element ( 710 ) and a network control element ( 720 ) are also presented.
Patent KR-20020076259-A (KR)
Title: 내부에 예비분무 가공처리된 실린더 및 실린더 내부예비분무 가공처리 방법
Inventor: HIDEO TAKAHASHI
IPC: C23C4/16
Filed: 2001-11-13
Abstract: 조밀한 기복(22)에 의해 형성된 릿지부(21b)의 잔류부를 가지도록 울퉁불퉁한 기복(21)의 릿지부(21b)를 파단시키거나 부분적으로 찢기 위해서, 나사형으로 울퉁불퉁한 기복(21)을 절삭하고, 미리 설정된 방향 또는 절삭형태로 각각의 기복(21)의 홈부(21a)에서 떨어져나간 절삭칩(20)을 이용하여, 그 위에 분무막(11)을 형성하기 위해 준비되는 원통면(3)이 울퉁불퉁하게된다.
Patent KR-20020086602-A (KR)
IPC: A61B5/11
Filed: 2000-05-03
Abstract: The present invention relates to a measuring device for determining an uneven loading of the human body in the upright position, comprising a base element with two balances, and an adjustment unit for positioning individual points or regions of the body of the person to be measured. The adjustment unit comprises two vertical struts fixed to a base element, on which measuring and fixing elements are arranged in a vertically displaceable manner. A first measuring and fixing element is provided for measuring and fixing the knee with a transverse edge for the sides of the feet, together with a second measuring and fixing element for measuring and fixing the hips, and a third measuring and fixing agent element for measuring and fixing the shoulder region, are provided.
Patent KR-20030003728-A (KR)
Title: Method and device for adjusting one or more roll segments in a continuous casting installation for casting metals, especially for steel materials
IPC: B22D11/128
Filed: 2001-05-11
Abstract: A method and a device for adjusting one or more roll segments (1) in a continuous casting installation for metals, especially for steel materials, the rolls (1a) of which adjusted in the segment upper frame (2) and the segment lower frame (3) on frame cross members (5) by pairs (4) of hydraulic piston-cylinder units in a position-and/or pressure-controlled manner, wherein an operation for guiding and/or pressing the casting strands (6) is switched from a position-controlled to a pressure-controlled operation when pressure within the respective pair (4) of piston-cylinder units reaches a predetermined maximum value, whereby an improved reaction is effected by operating the piston-cylinder unit of every roll segment (1) in the case of overload, in subsequent steps at a reduced pressure or in a pressureless switching mode until the switching mode is reached in which the segment upper frame (2) can be opened to some extent.
Patent KR-20030014213-A (KR)
IPC: H03F3/24
Filed: 2001-05-02
Abstract: 본 발명은, 일반적으로 말하면, 고출력 전력에서 높은 PAE를 나타내는 RF 전력증폭기를 제공한다. 전력증폭기의 설계는 스위칭 트랜지스터가 (FET에 대하여는)전압 또는 (바이폴라 트랜지스터에 대하여는) 전류에 의해 제어되며, 모두에 의해 제어되지는 않는다는 지식을 기초로 한다. 따라서, 최종 스테이지를 스위치로 동작시키기 위하여 드라이버 증폭기로부터 전력을 발생시킬 필요는 없다. 이러한 인식은 종래의 지식, 즉 고효율 전력증폭기들의 인터스테이지 설계를 위한 임피던스 매칭의 개념과 정확히 배치된다. RF 전력증폭기와 같은 패스밴드(공진) 네트워크에서 전압 파형 또는 전류 파형을 단독으로 발생시키는 것은 불가능하며, 전류와 전압 모두가 존재해야 한다. 그러나, 본 발명의 한 태양에 따르면, 전력 전달을 최대화시키는 대신, 전압(또는 전류) 파형의 크기를 유지시키는 동안에는 전력 소모가 감소된다. 본 발명의 다른 태양에 따르면, 드라이버는 스위치 모드에서 동작하도록 최종 스테이지와 함께 설계된다. 이러한 경우에, 인터스테이지 네트워크의 설계는 클래스 E 출력 스테이지의 것과 유사하다. 그러나, 인터스테이지 네트워크의 경우에서, 목적은 부하에 최대 전력을 발생시키는 것이 아니다(클래스 B 출력 스테이지의 경우에서처럼). 오히려, 목적은 (스위치 입력인) 드라이버의 부하에 최대 전압을 발생시키는 것이다. 이러한 장치에서, 스위치의 입력 디바이스는 드라이버 스테이지의 동작 전압이 감소될 수 있도록 충분히 높을 수 있다. 이러한 감소는 드라이버로의 DC 공급 전력을 더욱 감소시키며, PAE를 증가시킨다.
Patent KR-20020093128-A (KR)
Title: 점성이 개선되고 ｉｖｄ 성능이 우수한 내연 기관의연료용 연료 첨가제 조성물
IPC: C10L1/19
Filed: 2001-05-04
Abstract: 본 발명은 가솔린 연료 첨가제 패킷 및 그 첨가제 패킷이 포함된 가솔린 엔진용 연료에 관한 것이다.  상기 신규한 가솔린 연료 첨가제 패킷은 개선된 점성, 특히 저온에서 개선된 점성을 나타내며, 흡입구 시스템을 청결하게 유지하는데 있어서 매우 우수한 성능을 나타낸다.
Patent KR-20030010637-A (KR)
Title: Use of collagen of aquatic origin for the producing of support designed for tissue engineering, and resulting supports and biomaterials
Inventor: ANDRE VALERIE
Filed: 2001-05-25
Abstract: The invention concerns the use of collagen of aquatic origin for producing supports designed for tissue engineering. The collagen is advantageously obtained from fish skin, preferably in native form. The invention enables the production of novel tissue engineering supports with low risk of contamination.
Patent KR-20030058941-A (KR)
IPC: H01L51/50
Filed: 2001-05-25
Abstract: 본 발명은 하기 화학식 I로 표시되는 트리페닐아민류에 관한 것이다. 이 화합물은 100℃ 이상의 유리 전이 온도를 지니면서, 안정된 비정질성을 지니고, 또 유기 용매에 대한 용해성에도 우수하다. 
     화학식 I 
     
       
     
     상기 화학식에서, A는 1-나프틸기 또는 2-나프틸기를 나타낸다.