baber/WOPTO huggingface dataset:
Patent KR-20000069505-A (KR)
Title: 통신 네트워크용의 장치 및 방법
IPC: H04W48/12
Filed: 1997-12-16
Abstract: 본 발명은 GSM형 또는 GSM에서 파생된 유형의 통신 네트워크에 사용하는 방법 및 이동국에 관한 것이다. 본 발명에 따르면, 미식별 BCCH 반송파의 식별(307)은 측정된 신호 강도에 기초하는 상기 BCCH 반송파가 측정 기간동안의 신호 강도 평균값에 대하여 가장 강한 BCCH 반송파중 하나인 것으로 예측될 때 이동국에서 개시된다. 측정 기간동안의 신호 강도 평균값을 고려하여 BCCH 반송파가 가장 강한 BCCH 반송파가 될 때의 시점으로부터 BCCH 반송파가 식별될 때의 시점까지의 지연은 다수의 경우에 감소될 수 있거나 일부 경우에 소거될 수 있다. 따라서, 이동국은 더 빠른 단계에서 BCCH 반송파에 대한 측정 데이터를 네트워크에 보고할 수 있어, 대응하는 셀로의 핸드오버가 더욱 고속으로 이루어질 수 있다.
Patent KR-20010006049-A (KR)
Title: 연소촉매
IPC: C10L10/04
Filed: 1998-04-08
Abstract: 본 발명은 액체 탄화수소 기초 연료에 혼합될 때 연료 연소시스템에서 침전물을 감소시키고 연료 시스템내 부식을 감소시키고 연료의 효율적인 산화를 촉진하는 연소 촉매 조성물에 관계한다.  연소 촉매 조성물은 계면활성제/유화제, 윤활유 및 직쇄형 액체 포화탄화수소로 구성된다.
Patent KR-20010012412-A (KR)
IPC: A61K47/48
Filed: 1998-05-08
Abstract: The invention relates to conjugates comprising a D enantiomer of a folic acid antagonist and a carrier. The invention also relates to the production of such conjugates and the use thereof.
Patent KR-20010013932-A (KR)
Title: 콘택트 렌즈를 이송 및 센터링하기 위한 장치 및 방법
IPC: B29C31/00
Filed: 1998-06-11
Abstract: 렌즈 형상 제품(23)을 제1 지지부(25)로부터 제2 지지부(31)의 센터링된 위치로 이송하는 이송 방법은 활주 가능한 플런저(11)와 플런저 슬리브(21)로 구성된 이송 장치(1)를 채용하며, 이 이송 장치는 이송 시에 제품이 바람직한 방식으로 정향되도록 제1 지지부 및 제2 지지부와 협동한다.
Patent KR-20010068782-A (KR)
Inventor: KIM UI DO
IPC: H01L21/28
Filed: 2000-01-10
Abstract: PURPOSE: A method for forming a contact of a semiconductor device is provided to form a contact having an anchor structure with forming the contact one time without adding a number of processes. CONSTITUTION: The method includes six steps. The first step is to prepare a silicon substrate(30) on the upper surface of which first through third insulating films(32,34,35) are sequentially formed. The second insulating film is formed of an insulating material the etching rate of which is larger than those of the first and second insulating films. The second step is to form a contact hole(38) by etching the insulating layers using a dry etch so that the upper surface of the silicon substrate is exposed. The third step is to etch using a wet etch to remove a silicon oxide film formed on the upper surface of the silicon substrate exposed via the contact hole. The fourth step is to form a metal base layer on the third insulating layer including the contact hole. The fifth step is to form a contact metal layer on the metal base layer so as to capable of charging the contact hole. The sixth step is to form a contact by removing the contact metal layer of the upper of the metal base layer on the third insulating layer. In the third step, the second insulating film exposed to the contact hole is more wet-etched in the direction of the inside than the first and third insulating films, thereby the contact formed to the contact hole in the sixth step is solidly fixed.
Patent KR-20010069111-A (KR)
Title: Method for controlling heat of electric rice-cooker
Inventor: KIM HEUNG JAE
IPC: A47J27/00
Filed: 2000-01-12
Abstract: PURPOSE: A warm keeping control method for an electric rice cooker is provided to compensate warm keeping temperature according to a warm keeping rate per stage by deciding if the warm keeping rate is more than a specific rate. CONSTITUTION: To control the warm keeping of an electric rice cooker, a controller keeps the electric rice cooker warm according to a warm keeping condition per stage. After some time, the controller decides if a warm keeping rate is more than a specific rate, per stage. When the warm keeping rate is less than the specific rate, the controller senses the predetermined warm keeping temperature at the stage and resets the temperature according to the predetermined warm keeping temperature. Finally, the controller keeps the electric rice cooker warm by the reset temperature.
Patent KR-20010073458-A (KR)
Title: A method for preparing 2,2,2-trifluoroethyl trifluoromethyl ether
Inventor: JUNG MUN JO
IPC: C07C41/01
Filed: 2000-01-15
Abstract: PURPOSE: A method is provided which manufactures 2,2,2-trifluoroethyl trifluoromethyl ether in a high yield ratio by reacting CF3CH2OH with CXCl3 (X="F" or Cl) and HF using chlorides or oxides of a metal selected from the group consisting of Sn, Ti, Al, Zn, and Ce as a catalyst. CONSTITUTION: In a method for manufacturing 2,2,2-trifluoroethyl trifluoromethyl ether by reacting CF3CH2OH with CXCl3 (X="F" or Cl) and HF under the existence of catalyst, the method is characterized in that chlorides or oxides of a metal selected from the group consisting of Sn, Ti, Al, Zn, and Ce are used as a catalyst, wherein an amount of the catalyst is 0.005 to 1 mole per one mole of trifluoroethanol, wherein an amount of CXCl3 (X="F" or Cl) is 1 to 10 moles per one mole of trifluoroethanol, wherein an amount of HF is 5 to 50 moles per one mole of trifluoroethanol, and wherein a temperature of the reaction is 100 to 200 deg.C.
Patent KR-20010073660-A (KR)
Title: Single layer wide bandwidth antenna using the stub
Inventor: CHOI JAE IK
IPC: H01Q9/28
Filed: 2000-01-19
Abstract: PURPOSE: A single layer broadband antenna using a stub is provided to maintain the broadband characteristics by adhering a stub to the single layer micro strip antenna and by adjusting the distance between stubs and to adjust the broadband range by selecting the parameter values of stub dimension and stub position. CONSTITUTION: The single layer broadband antenna(1) comprises a dielectric substrate(2), a patch(4) formed on the dielectric substrate, a laminated conductive stub(5) adhered on the corner of the patch, and a conductive earth plate adhered under the dielectric substrate. The width of the patch is less than that of dielectric substrate and has a hole. The laminated conductive stub is used to vary the resonance frequency and the impedance by changing its position and size. A power supplying point is formed by soldering the hole of the patch where a coaxial cable is inserted.
Patent KR-20010073896-A (KR)
Title: Normal open type solenoid valve for ABS
Inventor: YANG I JIN
IPC: B60T8/34
Filed: 2000-01-22
Abstract: PURPOSE: An NO type solenoid valve forms double orifices to improve braking responsiveness and efficiently prevent noise generated on intermission of braking hydraulic pressure by ABS(Anti-lock Brake System) control. CONSTITUTION: A solenoid(30) comprises a valve housing(31), a valve seat(36), an armature(33), a plunger(34), the first elastic body(34b), a movable piston(37) and the second elastic body(38). The valve housing(31) has one end inserted into a bore(81) of a modulator block(80) and having an outlet(31b) connected with a hydraulic brake and a usual accommodating part(31a) and the other end with a sleeve(35) installed. The valve seat(36) is inserted into the accommodating part(31a) of the valve housing(31) and has a main orifice(36a) on the middle of the upper side thereof and a hydraulic room(36b) in the lower side thereof. The armature(33) is built in the sleeve(35) and vertically moved by a solenoid(32). The plunger(34) is interlocked with the armature(33), axially penetrates the valve housing(31) and has a ball body(34a) on the front end thereof to open and close the main orifice(36a). The first elastic body(34b) is placed between the plunger(34) and the valve seat(36) to elastically support the plunger(34) to maintain the main orifice(36a) opened normally. The movable piston(37) has one end(37a) in the hydraulic room(36b) of the valve seat(36) and the other end(37b) under the bore(81) of the modulator block(80) slidably placed, an inlet(37c) therein to communicate with a master cylinder and an auxiliary orifice(37e) placed on the central part of the one end(37a) to communicate with the main orifice(36a).
Patent KR-20010083344-A (KR)
Title: Apparatus and Method for Reservative Recording for a Satellite Broadcasting Receiver with a positioner
Inventor: PARK CHAN SU
IPC: H04N7/20
Filed: 2000-02-10
Abstract: PURPOSE: A reservation recording apparatus and method of satellite broadcasting receiver having a positioner are provided to perform a reservation recording operation using a satellite broadcasting receiver which receives a broadcasting signal from a satellite and a recording device which records a broadcasting program. CONSTITUTION: A main processor(100) demodulates, decodes, and demultiplexes a satellite signal to output an audio signal and a video signal. The main processor(100) sets current time information. A tuner(110) processes a signal received from a broadcasting satellite and detects an I/Q signal. A QPSK demodulator and FEC decoder(120) QPSK demodulates and FEC decodes with respect to the I/Q signal from the tuner(110). A front processor(200) is enabled by the current time information from the main processor(100) and manages time information through a periodical interfacing with the main processor(100). A display device(210) displays an operation state of a set top box. A front controller(250) enables an RTC(240) and records the current time information to the RTC(240).
Patent KR-20010083696-A (KR)
Title: Carrier recovery apparatus of liquid electrophotographic printer
Inventor: BAEK UN HO
IPC: G03G15/11
Filed: 2000-02-21
Abstract: PURPOSE: A carrier recovery apparatus for a wet type electrophotographic printer is provided to precisely and effectively separate water from liquid carrier and to elongate a service life. CONSTITUTION: Liquid carrier remaining on a photosensitive body(10) after development and moisture in the air flowing from outside are condensed by a dry unit(30), and respectively phase-separated to be stored in a storing tank(60). An electrostatic capacity sensor(110) is mounted to an outer periphery of the storing tank(60), so that the sensor(110) can sense without any contact whether either water or liquid carrier exists by detecting a change of the electrostatic capacity due to the permittivity differences between the water and the liquid carrier. Then, the sensor(110) outputs a corresponding control signal. A controller(80) controls opening/closing of discharge pipes(61,62) connected to the tank(60), so as to selectively exhaust the water and the liquid carrier by the control signal output from the sensor(110).
Patent KR-20010083702-A (KR)
Title: Feeding device for pick-up disc drive
Inventor: YOO SEUNG HEON
IPC: G11B19/14
Filed: 2000-02-21
Abstract: PURPOSE: A pickup transport apparatus of an optical disk drive is provided to prevent interference against other components and incomplete meshing into a lead screw by preventing deformation thereof. CONSTITUTION: A pickup transport apparatus of an optical disk drive has a flat body(51) installed in a pickup, an elastic section(52), a switch contacting section(53) and anti-deformation means. The elastic section(52) is elastically connected to a connecting section of the body(51), and has a gear(52a) for meshing into a lead screw. The switch contacting section(53) is connected to the body(51) to detect the arrival of the pickup to the innermost periphery of an optical disk. The anti-deformation means contacts a deformed section generated from a rotational force to a side of the body(51) and the pickup to decrease deformation.
Patent KR-20000036259-A (KR)
Inventor: HYON SANG CHEON
IPC: G11B17/02
Filed: 2000-03-17
Abstract: PURPOSE: A device for guiding tray of CD-ROM driver is provided to decrease vibration and noise by making a tray move forward or backward to maintain the balance. CONSTITUTION: A device for guiding tray of CD-ROM driver includes a main base(6) which forms a CD-ROM(Compact Disk-Read Only Memory); a tray(42) which is installed on the main base(6) sliding forward/backward and on which a CD is loaded; rollers(56) which are placed on both sides of the tray(42) and pressurize to keep the balance when moving forward/backward; a rod(54) which is installed on a side wall(38) of the main base(6) and combines the roller(56) rotatable; and a motor(10) which is installed in lower part of the main base(6) and supply driving force for the tray(42) to move forward/backward.
Patent KR-20010090184-A (KR)
Title: The automatic action welding equipment for a ornament ball-chain
Inventor: CHA YOUNG CHUL
IPC: B23K20/00
Filed: 2000-03-23
Abstract: PURPOSE: An apparatus for automatically welding a decorative ball chain is provided to achieve the mass production, to improve the efficiency of operating, to reduce the labor of working, and to minimize the generation of defective products. CONSTITUTION: The automatic welding apparatus comprises a workpiece supply device(100) for guiding several ball chains at the same time at a set speed to continuously supply them; a flux supply and fusion device(200) for smoothly supplying a flux member(201) in order to weld balls of the ball chains each other; a workpiece transfer device(300) for advancing the ball chains with their balls are fusion bonded by flames; and an automatic drawing device(400) comprised of a winding die(410) for the ball chains, a bobbin(420), and a tension roller(430). Therefore, after selected several rows of the ball chains are supplied together regardless of the size of the ball chains, the adjacent parts of the balls are fusion bonded at the same time, and stably moved to a predetermined position to automatically complete the ball chains.
Patent KR-20000076986-A (KR)
Inventor: BAE YEON SU
IPC: H02M7/00
Filed: 2000-03-29
Abstract: PURPOSE: A magnetic circuit using a switching is provided to reduce reactance induced by a frequency by inducing an alternative magnetic flux by a direct current unit instead of an alternative current unit. CONSTITUTION: A magnetic circuit using a switching comprises a ferromagnetic conductor(56), coils(54,55), switches(52,53), and diodes(57,58). When the switch(52) is on and the switch(53) is off, a current flows to the coil winding(54) so that an S-pole magnetic flux is induced. When the switch(53) is off and the switch(52) is on, a current flows to the coil winding(55) so that an N-pole magnetic flux is induced. When the switches(52,53) is all on, N-pole and S-pole fluxes are offset, so that current is returned to a power(51) via a common ground(59) connected to the lead lines of the diodes(57,58).
Patent KR-20010095560-A (KR)
Title: Hot recycling tundish in order to ensure drainage
Inventor: HUH SEONG CHEON
IPC: B22D11/10
Filed: 2000-04-11
Abstract: PURPOSE: A hot recycling tundish for securing slag discharging properties is provided which not only improves quality of a slab by improving the structure of an inclination angle of the slag discharging surface and the main cover so as to prevent accumulation of skull and slag, but also increases productivity and recycling frequency of a tundish by shortening a skull removing time. CONSTITUTION: The hot recycling tundish for securing slag discharging properties comprises a slag discharging surface(2) which is formed to have an inclination angle(Φ) of about 27 degrees or so capable of avoiding to the utmost the interference with a long nozzle(6) that is installed by penetrating a main cover(5) closing the upper surface of a tundish(1); and an opening part(A) which is formed so that the upper surface of a slag discharging port(4) is opened by cutting open a part of the main cover(5) that is fixed with spaced apart from the upper end of the slag discharging surface(2) in a certain distance.
Patent KR-20010097548-A (KR)
Inventor: KWON HYEOK DU
IPC: H01J29/02
Filed: 2000-04-24
Abstract: 전장 축소 및 글라스의 경량화, 그리고 패널의 평면화가 가능한 섀도우 마스크의 고정 구조 및 상기 구조에 의해 형성된 평면 음극선관에 관한 것으로, 형광막 스크린이 제공된 패널과 전자총이 장착된 넥크부를 연결하는 펀넬에 복수의 스터드 핀을 고정하고, 색 선별 기능을 수행하는 섀도우 마스크를 마스크 프레임에 용접하여 일체로 고정하며, 상기 마스크 프레임에 복수의 스프링 부재를 고정하여 상기 스프링 부재를 상기 스터드 핀에 착탈 가능하게 설치한다. 
     이로써, 종래 패널에 구비된 스커트부에 해당하는 만큼의 글라스를 제거할 수 있고, 이로 인해 글라스의 경량화가 가능하여 원가를 절감할 수 있음과 아울러 전장 축소가 가능하며, 섀도우 마스크 고정 수율을 향상시키는 것이 가능하다.
Patent KR-20010097928-A (KR)
Inventor: KIM HYE DONG
IPC: H01L51/50
Filed: 2000-04-27
Abstract: 목적 : 디스플레이의 화질 개선을 위해 오렌지색 발광재료를 사용하여 유기막을 형성시키고 적색 칼라필터로 필터링함으로써 고발광 효율을 갖는 유기발광소자를 제조할 수 있는 디스플레이장치의 유기발광소자 제조방법에 대해 개시한다. 
     구성 : 본 발명의 디스플레이장치의 유기발광소자 제조방법은, 액티브 매트릭스형 디스플레이장치와 패시브 매트릭스형 디스플레이장치를 제조하기 위해 소정의 공정을 진행한 기판을 준비하는 단계와; 이 기판 상에 적색을 표현하는 화소부에 적색 칼라필터를 형성시키는 단계와; 적색 칼라필터 상부에 양극전극을 형성시키는 단계와; 이 양극전극 상에 오렌지색을 발광하는 유기막을 형성시키는 단계와; 그리고 유기막 상에 음극전극을 형성시키는 단계;를 포함하여 이루어진 것을 특징으로 한다. 
     효과 : 전체 RGB 효율을 증가시키는데 문제가 되는 적색 발광재료 대신 오렌지색 발광재료를 사용하여 전체 RGB 효율을 증가시킴으로써 디스플레이 화질을 개선시킬 수 있다.
Patent KR-20010098174-A (KR)
Inventor: JUN CHAN HUI
IPC: H04B7/155
Filed: 2000-04-28
Abstract: 본 발명은 기지국의 베이스밴드 변복조용 멀티채널보드를 제공한다. 
     본 발명에 의하면, CDMA 이동통신 기지국의 베이스밴드 변복조를 담당하는 보드를, 운용할 채널수에 따라 EPLD가 프로그램에 의해 가변적으로 채널수에 맞게 시스템클럭을 분배하고 상기 채널에 대응하는 수의 CSM이 변복조를 행할 수 있도록 최대채널을 수용하는 하나의 멀티채널보드를 구현함으로서 기지국의 여러 시스템에 장착 사용할 수 있으므로 비용절감 및 유지, 보수에 있어서 시스템의 안정화를 기할 수 있는 현저한 효과를 얻을 수 있다.
Patent KR-20010105806-A (KR)
Title: Refractory set for tapping hole of blast furnace and stacking method thereof
Inventor: KIM YONG SE
IPC: C21B7/14
Filed: 2000-05-18
Abstract: A coating suitable for receiving an image by dye diffusion printing which includes a thermoplastic polymer having a glass transition temperature of at least about 30 °C and a powdered plasticizer having a melting point of at least about 80 °C. The thermoplastic polymer may have a glass transition temperature of at least about 40 °C. For example, the thermoplastic polymer may be a vinyl chloride-acrylate copolymer. The plasticizer may be an aromatic carboxylic acid ester, such as cyclohexane dimethanol dibenzoate. The average particle size of the powdered plasticizer may be no greater than about 20 micrometers. The weight ratio of the thermoplastic polymer to the plasticizer typically is in a range of from about 80:20 to about 40:60. Finally, the coating includes a release agent. The release agent may be present in a range of from about 0.5 to about 10 percent by weight, based on the weight of dry coating. The present invention also provides a coated substrate suitable for receiving an image by dye diffusion printing and a coating composition which is an aqueous dispersion of a thermoplastic polymer having a glass transition temperature of at least about 30 °C, a powdered plasticizer having a melting point of at least about 80 °C, and a release agent.
Patent KR-20000054059-A (KR)
Inventor: CHOI SANG JOON
IPC: G01R31/08
Filed: 2000-05-19
Abstract: PURPOSE: An apparatus and a method for measuring and recording voltages of a distribution line are provided to reduce the size of a voltage measurement apparatus and the number of workers for operating the voltage measurement apparatus. CONSTITUTION: An apparatus for measuring and recording voltages of a distribution line is composed of a voltage sensing unit(110), an instantaneous power failure sensing unit(130), a memory(140), a time processing unit(150), a display unit(160), an operation unit(170), a communication connection unit(180) and a control unit(190). The voltage sensing unit detects voltages, electric signals in the distribution line and outputs as digital data. A voltage value as an effective value is sampled at certain period and frequency. An average value is calculated at a certain recording period.
Patent KR-20010105129-A (KR)
Inventor: KIM DOH YON
Filed: 2000-05-19
Abstract: 진공증발농축장치의 제조에 있어서 기존의 수욕조 및 수류콘덴서를 개량하여 히팅맨틀과 한제를 사용한 저온수류펌프를 사용하여 기기장치를 간략화하여 기능성을 향상시켰다.
Patent KR-20010106618-A (KR)
Inventor: KIM YONG MAN
IPC: G06Q30/00
Filed: 2000-05-22
Abstract: 가입자가 인터넷 서비스용 단말기를 통해 웹 서핑을 하는 경우 가입자가 브라우징한 웹 페이지 상에 SO가 제공하는 광고용 웹 페이지를 동시에 표시함으로써 종래 인터넷 서비스용 단말기에 광고 서비스 기능을 부가하기 위한 것으로, SO 사업자에 의해 운용되는 케이블 네트웍과 가입자 네트웍 간의 데이터 브리지 역할을 하는 인터넷 서비스용 단말기를 이용한 광고 방법에 있어서, 가입자 네트웍으로부터 웹 요구 데이터 신호가 있으면, 웹 요구 데이터 신호에 따른 웹 서버의 IP 어드레스 및 내부에 저장된 광고용 웹 서버의 IP 어드레스를 각각 레퍼런스 IP 어드레스로 변환하고 각각의 레퍼런스 IP 어드레스를 소스로 하는 2개의 윈도우 프레임을 가지는 프레임 세트 파일을 생성한 후, 상기 가입자 네트웍으로 전송하여 준다. 그리고, 가입자 네트웍으로부터 레퍼런스 IP 어드레스에 대한 웹 요구 데이터 신호가 있으면, 레퍼런스 IP 어드레스를 원래의 IP 어드레스로 변환한 후 케이블 네트웍으로 전송하여 준다. 따라서, 가입자의 웹 요구 데이터 신호가 있을 경우 가입자가 요구한 웹 서버에 의한 웹 페이지와 광고용 웹 서버에 광고를 가입자에게 동시에 표시하게 된다.
Patent KR-20010108595-A (KR)
Inventor: KIM JAE SUK
Filed: 2000-05-30
Abstract: 본 발명은 종래 밋밋하고 특징이 없어 사용자들의 관심을 끌지 못하던 소변기에 사용자들의 호기심을 자극할 수 있고, 즐거움을 줄 수 있는 소변유도수단을 형성하므로써 사용자들의 소변기 사용시 집중력을 가지도록 유도하므로써 소변이 소변기 밖으로 벗어나는 것을 방지하고, 소변기에 대해 애정을 가질 수 있도록 하여 쾌적한 화장실 문화를 조성할 수 있는 매우 유용한 발명인 것이다.
Patent KR-20010007243-A (KR)
Inventor: OHASHI NAOTO
IPC: A61F13/15
Filed: 2000-06-05
Abstract: PURPOSE: To prevent soft stool from leaking to the outside from the back side of a body. CONSTITUTION: A thick-walled part 20 rising onto a person wearing a disposable diaper 1 is provided in a central region in the lateral direction in a rear face part 2C of the diaper 1. The thick-walled part 20 has such shape that makes a width in the lateral direction of a hem part 22 smaller than a width of an absorbing core positioned in an intermediate part 2B and reduces a width in the lateral direction gradually toward a vertex part 21 facing the side of the person wearing the diaper. Since the thick-walled part 20 enters a crevice of the breech, a clearance does not occur between a surface of the diaper 1 and the crevice of the breech of the person wearing the diaper. Consequently, soft stool does not leak to the outside from a waist part of the back even if the person wearing the diaper excretes soft stool while he lies.
Patent KR-20010110571-A (KR)
Inventor: CHO JEONG HO
Filed: 2000-06-07
Abstract: 본 발명은 감광성 고분자 소재의 액정배향물질로서 감광 비반응부인 고분자주쇄와 감광 반응부인 신나모일 유도체로 구성되는 감광성 고분자 액정배향제에 관한 것으로서, 본 발명의 액정배향제는 하기와 같은 구조식을 갖는다. 
     
       
     
     여기서, 상기 l, m, n은 각각 독립적으로 0 또는 1이고, 상기 k는 5 내지 500,000 사이의 정수이다. 
     상기와 같은 구조로 이루어지는 본 발명의 액정배향제에 의해 우수한 감광성, 내열성 및 광안정성을 가진 액정배향막의 생성이 가능하다.
Patent KR-20010111201-A (KR)
Inventor: CHOI HO SEON
Filed: 2000-06-09
Abstract: 본 발명은 공기조화기의 개별 공조장치에 관한 것으로, 종래에는 공기조화기를 이용하여 대형공간과 각 개인의 공조를 모두 만족시키지 못하는 문제점이 있었다. 따라서 본 발명은 실내기와 실외기로 이루어진 공기조화기에 차가운 공기를 원하는 개인에게 공급해주는 복수개의 개인용 공조기와, 상기 실내기가 가지고 있는 배관에 분지(BRANCH)형태로 연결하여 냉매를 상기 개인용 공조기로 전달해주도록 하는 분지 배관과, 상기 분지 배관에 연결되어 상기 개인용 공조기의 동작상태에 따라 개인용 공조기로의 공급되는 냉매를 조절해주는 밸브를 추가하여, 도서관이나 사무실과 같은 대형 공간에 대한 전체 공조를 수행함과 아울러 각 개인에게 별도로 차가운 공기를  제공하여 개별 공조가 이루어지도록 함으로써, 각 개인에게 만족감을 줌과 동시에 전체적으로는 에너지를 절약할 수 있도록 한 것이다.
Patent KR-20020001936-A (KR)
Title: Novel photoresist polymer and photoresist composition containing it
Inventor: BAEK GI HO
IPC: C08F8/02
Filed: 2000-06-21
Abstract: PURPOSE: A novel polymer for photo resist, its preparation method, a polymer for preparing the novel polymer, and a photo resist composition containing the novel polymer, are provided, which composition is improved in the etching resistance, the heat resistance and the adhesive strength, can be developed in aqueous tetramethylammonium hydroxide solution and is useful in the lithography using a light of 157 nm and 13 nm. CONSTITUTION: The novel polymer is represented by the formula 3. The polymer which is used to prepare the polymer of the formula 3, is represented by the formula 2. In the formulas 2 and 3, Y is H or -OR3; R1 is a linear or branched alkyl group of a substituted or unsubstituted C1-C10; R2 is -CH(CH3)OR4, -CO2C(CH3)3 or -COC(CH3)3; R3 is a linear or branched alkyl group of a substituted or unsubstituted C1-C10; R4 is a linear or branched alkyl or aryl group of a substituted or unsubstituted C1-C20 or a five to seven-membered cyclic compound; a is 50 mol%, b is 5-45 mol%, d is 0-30 mol%, and e is 0-20 mol%; and n is 0 or 1. The composition comprises 100 parts by weight of the polymer of the formula 3; 0.1-10 parts by weight of a photoacid generator; and 400-1,500 parts by weight of an organic solvent. Preferably the solvent is selected from the group consisting of ethyl 3-ethoxypropionate, methyl 3-methoxypropionate, cyclohexanone, propylene glycol methyl ether acetate, n-heptanone and ethyl lactate.