baber/WOPTO huggingface dataset:
Patent KR-20020030503-A (KR)
Title: Wire Tapping Device for Voice and Information of Applicant in Private Branch Exchange
Inventor: LEE JONG SEONG
IPC: H04M3/42
Filed: 2000-10-18
Abstract: PURPOSE: An apparatus for monitoring information and a voice of a PBX(Private Branch eXchange) subscriber is provided to connect a monitoring device to a LAN(Local Area Network) and control information and the voice necessary for monitoring using the LAN. CONSTITUTION: A line distributing frame connects to subscriber telephones, and distributes lines of the subscriber telephones, and connects the distributed lines to a switch. The switch includes a PCM(Pulse Code Division) interface unit(43) for modulating a voice or data transmitted from a subscriber into a uniform clock frequency according to a PCM method to transmit the modulated signal to a transmission highway, and demodulating a PCM signal received from a receipt highway so that an other user for performing a telephone conversation with the subscriber receives the PCM signal. The switch has a switch block(42) for receiving the modulated signal transmitted from the transmission highway and storing the received signal in an internal register, a control interface unit(40) for controlling the switch block(42), transmitting voice or data information stored in the switch block(42) to the receipt highway, and connecting the telephone conversation with the other user. The switch has a switch application program for registering a monitoring object among the subscribers and judging the monitoring object, a data memory unit(44) for storing telephone conversation information of the subscriber in case that the subscriber is the monitoring object registered in the application program, and an LAN interface unit(45) for transmitting information stored in the data memory unit(44) to an external monitoring device(46). The external monitoring device(46) monitors the signal transmitted from the LAN interface unit(45).
Patent KR-20010007958-A (KR)
Inventor: CHO SUN CHEON
IPC: G02F1/133
Filed: 2000-10-30
Abstract: PURPOSE: A plane display device is provided to widen an angle of vision by forming a pixel by use of a backlight having a blue light source and a light emitting unit having a blue coloring layer. CONSTITUTION: A plane display device comprises a backlight(120) which is installed at a lower surface of a liquid crystal display device(110) and radiates a blue ray of light to form a pixel. A light emitting unit(130) is excited or filtered by light passing through the liquid crystal display device(110). A coating layer(140) is installed on a top surface of the liquid crystal display device. The light emitting unit(130) forms a pixel by use of blue light. A red fluorescent layer(131), a green fluorescent layer(132) and a blue coloring layer(133) are formed in the first substrate(112), and a black matrix layer(134) is formed between the green fluorescent layer(132) and the blue coloring layer(133).
Patent KR-20020034672-A (KR)
Title: Apparatus and Method for Managing home-page
Inventor: LEE CHANG U
IPC: G06F17/00
Filed: 2000-11-03
Abstract: PURPOSE: A device and a method for the homepage management are provided to realize the convenience of the homepage management and a function of an electronic album by updating a homepage with the homepage update data and the data for an edit format editing the update data provided from a user through on-line or off-line. CONSTITUTION: The method comprises steps of acquiring the data updating the homepage and transmitting the update data to a homepage management server if the edit format is selected(ST100-ST110), executing a process editing the update data by receiving the transmitted data and the data of the edit format from the homepage management server(ST120) and updating the homepage by transmitting the processed data to a homepage storing server storing the homepage(ST140).
Patent KR-20020039957-A (KR)
Title: method for manufacturing MML semiconductor device
Inventor: OH TAE SEOK
IPC: H01L27/10
Filed: 2000-11-23
Abstract: PURPOSE: A method for forming an MML(Merged Memory Logic) semiconductor device is provided to reduce a stepped portion between a memory region and a logic region by using an MRAM(Magnetic Random Access Memory) instead of DRAM(Dynamic Random Access Memory). CONSTITUTION: An isolation layer(22) is formed on a substrate(21). A P-well(23) and an N-well are formed on a surface of the substrate(21). A logic gate and a memory gate are formed on the substrate(21). An insulating layer sidewall is formed at both sides of the logic gate and the memory gate. A source/drain dopant region is formed on the surface of the substrate(21) by implanting high density n type or p type dopant ions. A cobalt silicide layer is formed on the logic gate and the source/drain dopant region. An IPO(Inter Poly Oxide) layer(31) is deposited on the substrate(21). The first polysilicon plug(32) is formed by depositing and etching a polysilicon layer. An ILD(Inter Layer Dielectric) layer(33) is deposited on the substrate(21). A tungsten plug is formed by depositing and etching a tungsten layer. A bit line is formed on the tungsten plug and the ILD layer(33). The first interlayer dielectric(36) is formed on the substrate(21). A contact hole is formed by removing selectively the first interlayer dielectric(36) and the ILD layer(33). The second polysilicon plug is formed in an inside of the contact hole. An anti-ferromagnetic layer, a hard-ferromagnetic layer, an insulating layer, and a soft-ferromagnetic layer are deposited thereon. An MRAM is defined by depositing and patterning a photoresist. The MRAM is formed by removing selectively the soft-ferromagnetic layer, the insulating layer, the hard-ferromagnetic layer, and the anti-ferromagnetic layer. The photoresist is removed. The second interlayer dielectric(43) is deposited on the substrate(21).
Patent KR-20010077929-A (KR)
Inventor: ISHIKAWA YOSHINORI
IPC: F24F11/02
Filed: 2000-11-24
Abstract: PURPOSE: To appropriately dehumidify and save power consumption, without shortening the life of the compressor, even if used in a closet. CONSTITUTION: This air conditioner capable of dehumidifying air in a closet 36 has intake holes 7a, 7b and an exhaust hole 9 provided at a main body case 5, a blower 15 provided, in a blowing passage 12 communicating the intake holes 7a, 7b with the exhaust hole 9, for taking in air through the intake holes 7a, 7b and exhausting through the exhaust hole 9; and an evaporator 13 provided in the passage 12 for cooling the air taken through the intake holes 7a, 7b, and a compressor 27 provided in the evaporator 13 for circulating a refrigerant to cool the evaporator 13. Further, the air conditioner comprises control means for controlling so as to execute the intermittent operation which repeats a state in which at least the compressor 27 between the blower 15 and the compressor 27 stops for a first specified time T1, and a state in which the blower 15 and the compressor 27 operate for a second specified time T2.
Patent KR-20020044422-A (KR)
Title: Method of forming thin film by atomic layer deposition
Inventor: KIM DONG CHAN
IPC: C23C16/40
Filed: 2000-12-06
Abstract: PURPOSE: A method for fabricating a thin film by using an atomic layer deposition(ALD) method is provided to effectively prevent a particle source like NH4Cl from being generated when the second reaction gas necessary for forming the thin film is supplied, by purging byproducts after the first reaction gas is supplied and by supplying activated hydrogen gas to eliminate a halogen-group element combined with a semiconductor substrate. CONSTITUTION: The first reaction material containing the halogen-group element is supplied to the semiconductor substrate(100) so that the first reaction absorbing layer with which the halogen-group element is combined is chemically absorbed to the semiconductor substrate. The activated hydrogen gas(134) is supplied to the resultant structure having the first reaction absorbing layer to eliminate the halogen-group element from the first reaction absorbing layer. The second reaction material is supplied to the first reaction absorbing layer from which the halogen-group element is removed, so that the second reaction absorbing layer is chemically absorbed to form a solid thin film.
Patent KR-20020048041-A (KR)
Title: Structure for installing a waist molding for automobiles
Inventor: LEE JEONG JUNG
IPC: B60J5/04
Filed: 2000-12-15
Abstract: PURPOSE: Structure for installing a waste molding of a vehicle is provided to reduce a producing cost by combining a waste molding assembly without a clamp. CONSTITUTION: Structure for mounting a waste molding in a vehicle comprises a door garnish(100) mounted on a door panel; a waste molding(200) combined to the door garnish; a placing groove(110) formed on an inner portion of the door garnish; plural combining grooves(111) mounted on both ends of the placing groove; a body unit(210) curved by being inserted to the combining groove; and plural combining protrusions(211) vertically extended from the body unit. The combining protrusions firmly connect the door garnish and the waste molding. Thereby, the structure for mounting the waste molding in the vehicle reduces a producing cost by combining the waste molding assembly without a clamp.
Patent KR-20020051013-A (KR)
Title: Apparatus for removing Naphthalene from Coke oven use light oil and ethanol
Inventor: KIM JANG GYU
IPC: B01D53/72
Filed: 2000-12-22
Abstract: PURPOSE: Provided is an apparatus for removing naphthalene from coke oven gas using light oil and ethanol. The device makes the elimination of naphthalene by cooling only and solves the problems of impurity by keeping the high temperature of cokes gas. CONSTITUTION: The apparatus comprises: absorbent oil supply line at the bottom part; a supply line of cooling water(3) to cool the cokes gas, distributed to all the cokes gas cooling line(1) and circulating through the whole cooler; more than two droplet eliminators installed in the ladder form to separate the above cokes gas and the cooling water and a mixture of light oil and ethanol supply line(10) among the above droplet eliminators, the volume content of the mixture being each 40-60% and its volume ratio to the flow volume of the cooling water being 1/100,000-1/10,000 ; a supply line of light oil(9) connected before the heat exchanger(2) of cool water supply line; and the supply line of cokes at the bottom part.
Patent KR-20020051399-A (KR)
Title: Message rejecting method in mobile wireless terminal
Inventor: CHO YEONG HWAN
IPC: H04B7/26
Filed: 2000-12-22
Abstract: PURPOSE: A method for denying messages in a mobile terminal is provided to efficiently use radio communication bands by enabling a user to deny messages for a desired time and a base station to spontaneously transmit the denied messages after the desired time. CONSTITUTION: A mobile terminal receives a receiving denial inputted through an input unit and stores it in a storage unit. Then the mobile terminal transmits the receiving denial to a base station through a transmit-receive unit(S30). The base station stores the time of the receiving denial so that the messages received to the base station after the receiving denial time can be stored without being transmitted(S31). Afterwards, the base station judges whether the receiving denial time elapsed(S32). If the receiving denial time still remains, the base station stores messages continuously. However, if it is judged that the receiving denial time elapsed, the base station transmits the stored messages to the mobile terminal(S33).
Patent KR-20020051976-A (KR)
Title: The Design Method Of The RF Power Amplifier Using Feedback Network
Inventor: HAN SEOK YONG
IPC: H03F3/20
Filed: 2000-12-23
Abstract: PURPOSE: A radio frequency(RF) power amplifier using a feedback circuit and a method for designing the same are provided, which is designed by finding a peak output power point due to an output power change according to an input power of a whole power amplifier circuit, after stabilizing an unstable amplifier device using the feedback circuit in a radio frequency band. CONSTITUTION: A feedback circuit(201) comprising a resistor and a capacitor is arranged in parallel with an amplifier device in an amplification part, and an input matching circuit(301) and an output matching circuit(303) for matching signals are connected to an input port and an output port of the amplifier device respectively. The amplifier part is divided into the first amplification stage constituted with one amplifier device and one feedback circuit, and the second amplification stage constituted with a plurality of amplifier devices and feedback circuits. The plurality of amplifier devices of the second amplification stage are arranged in parallel. The feedback circuit of the second amplification stage is arranged in two amplifier devices one by one.
Patent KR-20020052370-A (KR)
Title: An automotive manifold for protecting crack causing to thermal expansion
Inventor: CHO CHEONG HUN
IPC: F01N13/06
Filed: 2000-12-26
Abstract: PURPOSE: A manifold for a vehicle is provided to prevent the cracking of the branch region by the port deformation from the thermal expansion and prevent gas leakages. CONSTITUTION: An exhaust manifold collecting exhaust gas generated from combustion chambers in an engine is formed with a plurality of branch pipes(1a) having different lengths of a port installed at the respective combustion chambers. The branch pipes(1a) are secured at a cylinder(C) having the combustion chambers by way of flanges(1a') welded at an interval retaining member having a relative larger diameter to maintain a certain interval. Thus, the manifold for a vehicle prevents the cracking due to the thermal expansion.
Patent KR-20020052468-A (KR)
Title: Manufacturing method for alternating phase shift mask of semiconductor device
Inventor: KIM SEOK GYUN
IPC: H01L21/027
Filed: 2000-12-26
Abstract: PURPOSE: A method for fabricating an alternating phase shift mask of a semiconductor device is provided to form fine patterns of high resolution by forming differently thickness of a neighboring reflective layer. CONSTITUTION: A reflective layer(23) is formed on an upper portion of a substrate(21). An absorbing layer(24) is formed on the reflective layer(23). The first photoresist layer pattern is formed on the absorbing layer(24) in order to expose a phase shift region(A). The absorbing layer(24) and a part of the reflective layer(23) are etched by using the first photoresist layer pattern as an etch mask. The first photoresist layer pattern is removed. The second photoresist layer pattern is formed on a whole surface in order to expose a non-phase shift region(B). The reflective layer(23) is exposed by etching the absorbing layer(24).
Patent KR-20020054498-A (KR)
Title: Pressure control device for turbo charger
Inventor: NOH HONG JIN
IPC: F02B37/20
Filed: 2000-12-28
Abstract: PURPOSE: A distribution pressure of a compressor is controlled appropriately according to an engine driving state, thereby improving productivity and reducing manufacturing cost. CONSTITUTION: An exhaust pipe(11) is connected to one side of a turbine housing(10) enveloping a turbine(13). A distribution pressure control device comprises a housing(14), a separating wall(16) moving sidewise by pressure change, springs(17a, 17b), a first nipple(15) formed one side of the housing moving the separating wall by a vacuum pressure of engine driving, an operation pillar(19) directing to an exhaust port(12), and a valve body(20) changing opening degree of the exhaust port. Therefore, a distribution pressure of a compressor is controlled properly.
Patent KR-20020058469-A (KR)
Title: Closed caption processing divice with memory address generator
Inventor: KIM YONG UN
IPC: H04N7/08
Filed: 2000-12-30
Abstract: PURPOSE: A character signal processing device having a built-in memory address generator is provided to store data from a data extractor to a memory in sequence using an address generator, without the control of a CPU(Central Processing Unit), so as to reduce an operation load of the CPU and process character signals more rapidly and correctly. CONSTITUTION: A data extractor(100) receives television signals to extract character signals, and generates a first control signal when character signals are completely extracted. A user interface(200) designates line information and field information in the data extractor, to designate an area to receive the character signals for the data extractor and outputs a signal designating a line and a field. An address generator(300) generates an address, by responding to the signal designating the line and field of the user interface and the first control signal. A write signal generator(400) generates a second control signal, by responding to the first control signal. And a memory(500) writes the character signals extracted from the data extractor in sequence, by responding to the first and second control signals.
Patent KR-20020057231-A (KR)
Title: Method for reducing mask and enlarging openning ratio
Inventor: PARK JI YEON
IPC: G02F1/136
Filed: 2000-12-30
Abstract: PURPOSE: A method of realizing high aperture ratio and reducing the number of masks in a liquid crystal display panel are provided to produce a liquid crystal display having high aperture ratio and large screen and decrease consumption power of the liquid crystal display by coating an organic resin under a gate layer. CONSTITUTION: An organic resin(4) is coated on a glass substrate(2), and a gate line(6) is formed on the organic resin. An insulating layer, an active pattern(10), source and drain electrodes(14) are formed on the substrate. Then, photoresist(18) is coated on the overall surface of the substrate and exposed. The resin layer is developed, to form a black matrix(22) without using an additional mask. The black matrix is formed being self-aligned.
Patent KR-20010021499-A (KR)
Title: 계통이 예정된 신경세포 전구체
IPC: C12N5/0797
Filed: 1998-07-03
Abstract: 자가-증식이 예정된 간세포 집단은 다양한 신경세포의 표현형으로 분화될 수 있는 배아 13.5일째의 척수를 발육시킴으로써 동정되었다.  이러한 신경세포로 예정된 전구체(NRP)는 매우 높게 폴리시알레이트된(polysialated) 또는 배아 신경세포 접착 분자(E-NCAM)를 발현하고, 신경상피 간세포(NEP 세포)와는 형태적으로 구별되며, 척수 교질세포 프로제니터(progenitor)는 배아 10.5일째의 척수로부터 유도되었다.  NRP 세포들은 섬유아세포 성장인자(FGF) 및 뉴로트로핀-3(NT-3)의 존재하에서 다양한 경로를 통하여 자가 증식되고, 신경세포 에피토프의 특화된 서브셋(subset)을 발현한다.  RA가 존재하고 FGF가 결여된 상태에서 배양하였을 때, NRP 세포들은 GABA성, 글루타메이트성 및 콜린성 면역반응성 신경세포로 분화된다.  NRP 세포들은 배아 10.5일째의 신경관으로부터 배양된 다분화능 NEP 세포들로부터 발생될 수 있다.  클로날 분석은 E-NCAM 면역반응성 NRP 세포들은 다른 예정된 CNS 전구체를 발생시키는 NEP 프로제니터 세포들로부터 야기된다는 것을 보여주었다.  상기 NEP에서 유도된 E-NCAM 면역반응성 세포들은 정해진 배지에서 자가 증식성이 있으며, 매스 및 클로날 배지내에서 다양한 신경세포의 표현형으로 분화된다.  이와 같이, 척수의 배아 13.5일째에 생체내에서(in vivo) 존재하는 더욱 예정된 신경세포 전구체 세포들 및 다분화능 NEP 세포들 사이에는 직접적인 계통 관계가 존재한다.  또한 본 발명은 신경성 질환을 치료하는 방법을 개시한다.
Patent KR-20010023493-A (KR)
Title: 광 디스크 카트리지용 이송 기구
IPC: G11B17/04
Filed: 1998-08-18
Abstract: 본 발명은 심지어 카트리지가 잘못 삽입되더라도, 이송 롤러가 광 디스크 카트리지와 압력 접촉을 하게 함으로서, 광 디스크 카트리지를 예정된 위치까지 배출할 수 있는 광 디스크 카트리지용 이송 기구에 관한 것이다.  롤러(5)가 암(4)에 의해 지지된다. 상기 이송 롤러(5)가 광 디스크 카트리지의 측벽과 압력 접촉하게 될 때, 상기 카트리지는 이송된다. 이송 롤러(5) 및 디스크 삽입구 사이의 광 디스크 카트리지 이송 경로내로 돌출하는 가이드 암(12)은 회전가능하게 탑재된다. 광디스크 카트리지가 정상 방향으로 삽입된다면,  상기 가이드 암(12)은 광 디스크 카트리지에 의해 회전되어 광 디스크 카트리지가 삽입될 수 있도록 시계방향으로 암(4)을 회전시킨다. 반면에, 광 디스크 카트리지가 정상 방향에 대해 90°회전된 방향으로 삽입된다면, 상기 이송 롤러는 광 디스크 카트리지의 측벽과 압력 접촉을 하게 된다.
Patent KR-20010023510-A (KR)
Title: 탄성중합체성 펩타이드를 포함하는 생분자
IPC: C12N15/09
Filed: 1998-08-28
Abstract: 본 발명은 수축 또는 신장시 삽입되는 분자의 성질 또는 특성을 변화시키는, 수축을 유도할 수 있는 탄성중합체성 펩타이드를 포함하는 삽입된 아미노산 서열을 함유하는 생분자, 특히 항체와 같은 생분자, 상기 생분자를 암호화하는 핵산 분자 및 상기 생분자의 용도에 관한 것이다.
Patent KR-20010031462-A (KR)
Title: 초합금 기면에 접합된 얇은 표층으로 구성되는 터빈구성요소
IPC: B23K35/30
Filed: 1998-10-27
Abstract: 고효율, 얇은 벽 터빈 구성요소(10)는 얇은 표층(14)에 의해 덮히는 초합금 기면(12)을 포함한다. 얇은 표층(14)은 전이액상접합 공정에 의해 터빈 블레이드 에어포일의 내부 스파 구조에 접합될 수 있다. 바람직하게는 내부 스파는 주조 단결정 니켈 베이스 초합금을 포함한다. 얇은 표층은 단결정 또는 다결정 니켈 베이스 초합금을 포함한다.
Patent KR-20010032938-A (KR)
Title: 방전가공장치
IPC: B23H7/18
Filed: 1998-07-24
Abstract: 방전가공중에 발생하는 가공부스러기를 배출시키는 것을 목적으로 한 전극점프동작(제1의 전극점프상승량(22))과는 별개로, 기계계 구동부품의 접동부분에 사용되는 볼 또는 굴림대가 1회전이상 회전하는 점프상승량을 설정한 전극 점프동작(제2의 전극점프상승량(23))을 수용하는 것이다. 
     또 윤활제 공급장치(161)의 이상을 검출한 경우 계속중인 프로그램에 대해서는 종료후에 가공을 정지 또는 어느 일정시간내에서 계속후에 가공을 정지시키는 또는 가공작업이외의 프로그램에 대해서는 실행가능하게 하는 것이다.
Patent KR-20010034036-A (KR)
IPC: B65G49/00
Filed: 1999-01-12
Abstract: 비진공 복수 웨이퍼 캐리어(25)로부터 웨이퍼(28)는 웨이퍼 처리장치(10)의 대기압 앞단(32)에 로딩 및 언로딩되며 웨이퍼 처리 클러스터 툴의 이송모듈의 고진공실(31), 혹은 후단에 및 이로부터, 단일 2-웨이퍼 로드록(45)을 통해 이송된다. 바람직하기로는, 웨이퍼(28)의 방위를 줄곧 수평으로 한 상태로, 2개의 웨이퍼(28)는 하나의 로드록(45)을 통해서, 시스템의 고진공 후단으로 내향하여 그에 연속적으로 로딩되고 동시에 이동되며, 동일 로드록(45)을 통해 외향으로 연속적으로 동시에 이동되며, 로드록(45)은 2개의 웨이퍼(28)를 능동적으로 동시에 냉각시키는 한 쌍의 물로 냉각되는 지지물(48)를 구비한다. 대기압 앞단(32) 환경 및 진공 후단 환경에서, 이동암(35, 42)는 로드록(45)에 로딩 및 언로딩하고, 모든 로드록이 밀봉되어 있을 상기 환경들 내에 웨이퍼(28)를 이송한다. 바람직하기로는, 웨이퍼(28)는 캐리어로부터 옮겨진 후 및 로드록(45)에 놓아 두기 전에 웨이퍼 정렬기를 통과한다. 두 개의 웨이퍼(28)가 로드록(45)으로부터 진공 후단으로 옮겨졌을 때, 하나 혹은 2개의 웨이퍼(28)는 후단 진공실(31) 내에 버퍼 위치(69) 내에 임시로 보유될 수 있다.
Patent KR-20010015916-A (KR)
Title: 차량의 이동 가능한 부품용 구동 장치
IPC: H02K11/215
Filed: 1999-10-26
Abstract: 공지된 구동 장치는 차량 부품, 특히 차량 지붕의 지붕 플레이트와 같은 이동 가능한 부품의 말단 위치들 사이에서 구동할 수 있는 장치로서, 이 장치는 제 1 감속 기어를 거쳐서 피니언과 결합되는 전기 모터와, 상기 이동 가능한 부품에 할당된 적어도 한 쪽 위치에서 전기 모터를 스위칭 오프하도록 전기 모터를 제어하는 스위치 장치와, 스위치 본체를 작동시키는 제 2 감속 기어와, 전도 트랙판의 하우징 내부에서 스위치 장치를 제어하도록 스위치 본체에 의해 제어 가능하며 사다리꼴 돌기를 통하여 스위치 부품의 작동 트랙을 거쳐서 연장되는 자장 감응 센서를 구비한다.  이 돌기에 의해서, 자장 감응 센서, 예를 들어 홀 센서는 스위치 본체의 작동 트랙 근처에 직접 지지된다.  이 돌기의 배치는 재료의 낭비와 이 재료의 처리비를 야기한다. 
     본 발명에 따라서, 자장 감응 센서(35)는, 스위치 본체(32)의 원형 작동 트랙으로부터 반경방향으로 이격되어 배치되며, 자장 감응 센서(35)와 스위치 본체(32)의 작동 트랙 사이에서 이격되어, 예를 들어 제 2 자장 전도체(36, 37)에 의해 교락하도록 제안된다.  상기 자장 전도판(36, 37)은 연자성 와이어로 저렴하게 제조된다.  이로써, 전도 트랙판 상에서 공지된 기술에 따른 돌기를 줄일 수 있으며, 그 결과 낭비를 방지하고자 하는 목적에 따라 정확히 직각으로 상호 방향 설정된 경계 가장자리가 형성될 수 있다.
Patent KR-20010052174-A (KR)
Title: 사람 ｃｄ40에 대한 항체
IPC: C12N15/13
Filed: 1999-02-10
Abstract: 출원인은 gp39와 CD40간의 상호작용을 차단하는 새로운 키메릭 및 사람화 항-사람 CD40항체을 발견하였다. 본발명의 항-CD40 항체는 T세포-의존성 항원에 대한 체액성 면역반응을 조절하는데 효과적이며, 또한 항-면역원성 특성에 유용하다.
Patent KR-20010106098-A (KR)
Title: 개폐기
IPC: H01H71/02
Filed: 1999-01-18
Abstract: 나일론 6 또는 나일론 6계 알로이가 35∼50 중량%, 강화재가 15∼25 중량%, 수산화마그네슘이 30∼40 중량% 인 유기 무기 복합 조성물로된 성형품의 절연 구성물을 광체에 사용한 개폐기이다. 또는 나일론 6 또는 나일론 6계 알로이가 35∼45 중량%, 강화재가 15∼25 중량%, 수산화마그네슘이 30∼40 중량%, 무기물이 5∼15 중량% 로한 유기 무기 복합 조성물로 해도 되고, 무기물을 소성 클레이, 왈라스트나이트로 해도 된다. 
     그리고 개폐기를 구성하는 성형품의 치수변화율을 저감시키고 동시에 성형품의 강성, 크립 성능을 향상시킨다. 또 성형품의 변형을 저감시키고, 표면 광택이 양호하고 손상이 가기 힘들게 한다.
Patent KR-20010043544-A (KR)
Title: 코팅된 폴리카르보네이트 및 중합체로 이루어진 복합 구조물
IPC: B29C39/00
Filed: 1999-05-03
Abstract: 본 발명은 표면이 코팅되어 있으며 가장자리 부분에 접착을 촉진하는 기하학적 형상이 있는 폴리카르보네이트 성형품 및 중합체를 포함하는 복합 구조물, 복합 구조물의 제조 방법, 및 복합 구조물로부터 제조되는 제품에 관한 것이다.
Patent KR-20020059908-A (KR)
Title: swivel chair adjustable height and pivot angle
Inventor: HAN DOUNG JUN
IPC: A47C3/20
Filed: 2001-01-09
Abstract: PURPOSE: A rotatable chair for a production line having height and rotating angle adjustment functions is provided to maximize the productivity and the efficiency of work, and to improve the appearance of a working place. CONSTITUTION: The rotatable chair for a production line having height and rotating angle adjustment functions is comprised of a fixed cam surface(104) formed on a fixed body(103) coupled inside a case(102) for supporting a rotating shaft(101); a rotatable cam surface(106) formed on a rotating tube(105) within the case with contacting with the fixed cam surface; a rotator(107) coupled to the rotating shaft so as to rotate the rotating tube according to the rotation of the rotating shaft; a bearing(109) coupled to the bottom of the rotating tube for facilitating the rotation of the tube; and an elastic member(110) elastically installed between the bearing and the bottom surface of the case. The elastic member is compressed during the falling of the bearing and the rotating tube, but when the rotating force of the rotating shaft is disappeared, the elastic member is relaxed in order to raise the rotating tube to an original position.