baber/WOPTO huggingface dataset:
Patent KR-20000042290-A (KR)
Title: Apparatus for converting image format
Inventor: KIM JAE MO
IPC: H04N9/00
Filed: 1998-12-24
Abstract: PURPOSE: An apparatus for converting image format is provided to simplify the hardware structure. CONSTITUTION: An apparatus for converting image format includes a look up table storage(22), a lead address generator(23), a FIFO memory(24), a second adder block(26), a multiplication block(27), and a third adder block(28). The look up table storage(22) outputs an output of a first adder block(21), an image format conversion weight(α), lead address increment(shift(n)), and a weight real number(α_real). The lead address generator(23) outputs lead address using an integer(shift(n)) representing the lead address increment. The FIFO memory(24) outputs input image data(Data in) representing the lead address output. The second adder block(26) subtracts delayed current image data(I(n)) from next image data(I(n+1)) outputted from the FIFO memory. The multiplication block(27) multiplies the output of the second adder block with the weight(α_real). The third adder block(28) adds the output of the multiplication block((α_real(n)*(I(n+1)-I(n)) with the current image data(I(n)).
Patent KR-20000044723-A (KR)
Title: Method for processing caption in atv system
Inventor: SHIN GWANG SEONG
IPC: H04N7/087
Filed: 1998-12-30
Abstract: PURPOSE: A method for processing a caption in an ATV(Advanced TeleVision) system is provided to improve a caption function by using vertical writing and horizontal writing for displaying character information. CONSTITUTION: A method for processing a caption in an ATV system comprises the steps of: reading a form of a character arrangement by reading pen commands; generating character windows of vertical writing or horizontal writing according to the form of the character arrangement, the character windows comprising an upper area, a center area, and a lower area, respectively; forming a character graphic of a normal character, an upper character, and a lower character by determining kinds of the character; searching a predetermined reference point corresponding to the character kinds and the character arrangement form on the character window; and forming a coordinate on the basis of the searched reference point and mapping the character graphic on a predetermined position of the coordinate.
Patent KR-19990066898-A (KR)
Title: 유기술폰산 매질중의 스테인레스 스틸의 부동태화 방법
IPC: C23F11/18
Filed: 1998-12-30
Abstract: 유기술폰산 매질 중에서 스테인레스 스틸의 부식을 방지하기 위해, 세륨 (IV), 철 (III), 몰리브덴 (VI) 또는 바나듐 (V) 의 산화물 또는 염, 아질산염 및 과황산염에서 선택된 하나 이상의 산화제를, 자발 (spontaneous) 전위가 부동태화 (passivation) 전위와 과부동태화 (transpassivation) 전위 사이에 위치하도록 하기에 충분한 양으로 첨가한다.
Patent KR-19990036069-A (KR)
Title: 진단 장치
IPC: G01N35/04
Filed: 1996-07-30
Abstract: 본 발명은 자발적으로 시험 액체 내의 분석물의 양을 검출 또는 결정하기 위한 장치를 제공한다.  상기 장치는 유입구 단부 및 유출구 단부를 구비하는 도관이 제공된 투과성 본체를 포함한다.  상기 도관은 제1 및 제2 분기관에서 갈라지는 제1 교차부와, 상기 제1 및 제2 분기관이 결합하는 제2 교차부를 포함한다.  상기 제1 분기관에는 분석 시약을 포함하는 시료 유입구가 제공된다.  제1 및 제2 분기관은, 사용할 때에 도관의 유입구로 들어가는 운송 액체가 상기 제1 및 제2 분기관에서 분할되고, 상기 운송 액체가 제2 분기관을 통해 제2 교차부에 도달하기 전에 제1 분기관 내의 시료를 제2 교차부를 통해 퍼져나아가게 하도록 설치된다.  상기 도관의 유출구 단부에는 분석물을 검출하는 수단이 제공된다.  선택적으로, 상기 도관은 상기 제2 교차부 및 검출 수단 사이에 속박/자유 분리를 할 수 있도록 반투과성 막을 포함한다.
Patent KR-19990063794-A (KR)
Title: 소모기에 의존하지 않고 적어도 일시적으로 능동 부하를 갖는고정 사이클 전원 회로
IPC: H02M1/00
Filed: 1996-06-28
Abstract: 고정 사이클 전원 회로는, 특히 가스방전등의 에너지공급을 위한 소모기로서, 소모기에 의존하지 않고 적어도 일시적으로 능동 부하(28)가 있고 변압기(11)가 있는 직류전압-직류전압-변환기(10)를 포함하고 있다. 스위치장치(12)는 변환기를 출력쪽에 있는 부하의 상태에 의존해 스위치신호(15)를 스위치장치에 공급하는 조정장치의 고정 사이클 직류 전원(13)과 연결한다. 직류전압-직류전압-변환기의 변압기는 상이한 극과 크기의 두 개의 전압 (U+, U-)이 출력쪽에 차이로서 감소할 수 있도록 구성되어 있다. 이 전압들 중 적어도 하나는 (U-) 조절되고 소모기가 작동되는 동안의 공급이 계획된다. 적어도 일시적으로 능동 부하(28)는 조절된 전압 (U-)으로 전환할 수 있다.
Patent KR-19990076851-A (KR)
IPC: A61F13/539
Filed: 1996-12-19
Abstract: The present invention relates to a disposable absorbent article (1) comprising a liquid pervious topsheet (2), an absorbent core (4), and a backsheet (3). Said backsheet (3) comprises a gas permeable polymeric two-dimensional film having apertures, and said core (4) comprising a fluid storage layer, wherein said absorbent article (1) exhibits a fluid contact angle gradient across said storage layer and said backsheet (3).
Patent KR-19990087674-A (KR)
Title: 국부적으로 배출된 유체의 목표한 배수를 위한 흡수용품 및 그방법
IPC: B32B3/26
Filed: 1997-03-06
Abstract: 전방부(12), 후미부(14) 및 전방부 및 후미부 사이에 배치되는 중심부(16), 흡수용품(10)이 사용될 때 착용자의 신체 쪽에 배치된 상부 액체 투과성 층(18), 흡수용품(10)이 사용될 때 착용자의 신체로부터 멀리 배치된 하부 액체 불투과성 층(20), 액체 투과성 층(18) 및 액체 불투과성 층(20) 사이에 배치되고 흡수용품의 전방부(12)로부터 후미부(14) 까지 연장된 액체 분배층(22)을 포함하며, 액체 분배층(22)로부터 적어도 흡수용품(10)의 전방부(12) 및(또는) 후미부(14)에 배치된 액체 저장층(24)의 부분으로 유체를 이동시키는 방법을 포함하는 흡수용품(10)을 제공한다.
Patent KR-19990067709-A (KR)
Title: 플래시 메모리 및 그 제조 방법
IPC: H01L27/105
Filed: 1999-01-02
Abstract: 데이터 소거가 플로팅 게이트의 코너 에지로부터 절연막을 통해 소거 게이트로 전자를 인출함으로써 수행되고,  상호 절연된 플로팅 게이트,  콘트롤 게이트 및 소거 게이트를 갖는 플래시 메모리에서,  플로팅 게이트와 소거 게이트간 절연막이 그 코너 부분에서 균일한 두께를 갖도록 형성된다.
Patent KR-20000050700-A (KR)
Inventor: KIM JUNG AN
IPC: C08F4/46
Filed: 1999-01-14
Abstract: PURPOSE: A process for producing a metallocene catalyst excellent in reactivity which is usable for the polymerization of olefins is provided which prepares the title catalyst capable of separating the used catalyst from synthesized polymers and reusing it. CONSTITUTION: A process comprises the steps of (a) preparing a polymer of a styrene-based monomer of formula 1 attached a halogen atom to a phenyl group or a copolymer of formula 2 of the same and the styrene-based monomer as a supporter using a radical polymerization initiator, (b) attaching cyclopentadiene, indene, fluorene or dimethylfulvene as a ligand to the supporter, (c) reacting with an alkylakali metal, (d) reacting with a transition metal complex. In formula, R1 represents a parafin (CnH2n) such as methylene, ethylene, n-butyl, amyl, hexyl, heptyl, and octyl; X represents a group selected from the group consisting of F, Cl and I; R represents a group selected from the group consisting of methyl, n-butyl, sec-butyl, tert-butyl and diisopropylamino group; and Mt represents a group selected from the group consisting of Li, Na, K and Cs. The catalyst can be used for the polymerization of styrenes and olefins and reused by recovering.
Patent KR-19990068077-A (KR)
Title: 반도체 장치내의 캐패시터 제조방법
IPC: H01L21/822
Filed: 1999-01-22
Abstract: 절연층을 제공하는 단계와; 상기 절연층내에 일련의 홀을 형성하는 단계와; 금속 또는 금속 화합물의 제 1 전도층이 상기 절연층의 상부 표면을 덮으며, 상기 절연층내에 형성된 상기 홀을 채우도록, 상기 절연층의 전면에 상기 금속 또는 그의 화합물의 제 1 전도층을 형성하는 단계와; 상기 제 1 전도층의 전면에 상기 금속의 화합물로 된 유전체층을 형성하는 단계; 및 상기 절연층의 전면에 상기 금속 또는 그의 화합물로 된 제 2 전도층을 형성하는 단계를 포함하는 반도체 장치 제조 방법이 제공된다. 상기 제 1, 2 전도층 및 절연층은 상기 홀내로 뻗어있는 동형의 용량성 샌드위치 구조를 형성한다.
Patent KR-19990068168-A (KR)
Title: 반도체 장치 및 그 제조 방법
IPC: H01L21/76
Filed: 1999-01-27
Abstract: 본 발명은 고온 하에도 고저항을 유지하는 고저항 영역이 이온 주입에 의해 전기 도전성을 갖는 질화물 III-V족 화합물 반도체 층에 형성될 수 있는 반도체 장치 및 그 제조 방법을 제공하도록 하는 것이다.  상기 전기 도전성을 갖는 질화물 III-V족 화합물 반도체 층이 성장된 후, 상기 고저항 영역은 내부에 붕소를 국부적으로 주입함으로써 상기 질화물 III-V족 화합물 반도체 층에 형성된다.  상기 주입된 붕소량은 상기 질화물 III-V족 화합물 반도체 층의 캐리어 농도의 1/30 이상, 또는 보다 바람직하게는, 1/15 이상이다.  상기 고저항 영역은 전자 주행 소자의 소자 격리 영역 또는 반도체 레이저의 전류 차단 층으로서 사용된다.
Patent KR-20000055726-A (KR)
Inventor: LEE SEONG HO
IPC: H04M3/56
Filed: 1999-02-09
Abstract: PURPOSE: A method for maintaining busy service calls in an exchange is provided to maintain a busy call of a slave subscriber even when a master subscriber completes a call, by making a call mixer(CMX) controlling processor cancel a line of the processor to maintain the process until other subscribers complete calls when the master subscriber completes the call, and by completing a mobile multiway controller(MMUL) when other subscribers complete the calls. CONSTITUTION: A method for maintaining busy service calls in an exchange while canceling a call of a master subscriber, comprises the steps of: making the master subscriber call three persons in a state of two persons being connected; connecting a call mixer(CMX) by a mobile multiway controller(MMUL), and supplying multi-call connecting services to N subscribers; if the master subscriber completes the call, making the CMX cancel a self transmission line by the MMUL, and maintaining a call of other slave subscriber; and if the other slave subscriber completes the call, completing multi-calls.
Patent KR-20000056408-A (KR)
Inventor: SANG JI HYEONG
IPC: H04L12/28
Filed: 1999-02-20
Abstract: PURPOSE: A method for monitoring/managing states of a telecommunication management network(TMN) agent is provided to efficiently operate the agent by supplying a monitoring processor for periodically examining the states of the agent and states of a communication line to perform a confirmation procedure for abnormal states of equipment, and for completing executions when the abnormal states continue after a regular time. CONSTITUTION: A method for monitoring/managing states of a telecommunication management network(TMN) agent, comprises the steps of: testing whether a communication line between the agent and equipment is normally operated, by a manager processor; if not, periodically examining states of the communication line; if the states are normal, operating the agent; if an abnormal situation is detected while examining the states of the communication line, deciding whether the abnormal situation is from the agent or from a network element; and if the abnormal situation is from the agent, continuing executions of the agent.
Patent KR-20000059558-A (KR)
Inventor: KIM CHAN YONG
IPC: H01J29/07
Filed: 1999-03-05
Abstract: PURPOSE: A tension mask for a cathode-ray tube and a frame assembly thereof are provided to minimize deterioration of effects concerning contraction and thermal expansion by bending the tension mask. CONSTITUTION: A pair of supporting members(101,102) are arranged parallel to each other with a certain distance. A frame(100) includes elastic members(103,104) which are fixed in both ends to the supporting members(101,102) to support the same. A tension mask(200) is supported in the upper and the lower parts by the supporting members(101,102) of the frame(100). Edges of the tension mask(100) are bent toward the central part of a pore part(210). By the bending of the edges, strips(201) and an end member(222) are applied with tensioning force.
Patent KR-20000060189-A (KR)
Inventor: KANG GI SANG
IPC: G11C29/00
Filed: 1999-03-12
Abstract: PURPOSE: A parallel test system of a semiconductor memory device is provided which enables measurement of a consumption current as to an individual memory chip. CONSTITUTION: A parallel test system(30) of a semiconductor memory device measures the consumption current as to the individual memory chip by applying all kinds of driving signals, data and power voltage supplied to each memory chip(DUT) to the corresponding memory chip selectively according to the on/off of a switching unit. The parallel test system tests a number of semiconductor memory devices simultaneously by comprising: a number of switching units which apply all kinds of driving signals, data and power voltage to the corresponding input port selectively according to an external switching control signal, being connected to a signal input port, a data input/output port and a power voltage input port of the semiconductor memory devices. Thus, the parallel test system can measure the consumption current of the individual semiconductor memory device, and can find a defective memory chip having an excessive consumption current and can prevent the problem which can be generated due to the defective memory chip.
Patent KR-19990078282-A (KR)
Title: 체액 흡수성 물품의 표면시이트
IPC: D04H13/00
Filed: 1999-03-26
Abstract: 본 발명은 복수개의 투액성 개공(6)을 갖는 체액 흡수성 물품의 표면 시이트에 관한 것으로, 상기 표면 시이트는 상대적으로 밀도가 낮은 상부 섬유층과 상대적으로 밀도가 높은 하부 섬유층을 포함한다. 상기 개공(6)의 주위에는 제1 및 제2 섬유층(11 및 12)이 서로 일체화되어 표면 시이트(2)의 상면으로부터 하면을 향하여 밀도가 점진적으로 높아지고, 하면의 근방에서 밀도는 제2 섬유층(12)보다 더 높아진다. 따라서, 상기 표면 시이트(2)를 갖는 물품을 사용하는 중에 상기 표면 시이트의 상면은 건조한 상태로 유지될 수 있다.
Patent KR-20000022612-A (KR)
Inventor: AIKAWA TADAO
IPC: G11C7/10
Filed: 1999-04-09
Abstract: PURPOSE: A semiconductor memory device is provided to perform a write mask operation exactly. CONSTITUTION: A semiconductor memory device comprises a bit line pair(BL,/BL) connected to internal memory cells. A sense amplifier(12) is connected to traverse the bit line pair(BL,/BL). A column gate pair(101,102) is connected to the bit line pair, and a data bus pair(DB,/DB) is connected to the bit line pair(BL,/BL) through the column gate pair. A column gate driving control circuit(10) is connected to the column gate pair, and makes a selected column gate pair off at a write mask operation.
Patent KR-20000067231-A (KR)
Title: Shock absorber
Inventor: KIM GEUN BAE
IPC: F16F9/512
Filed: 1999-04-26
Abstract: PURPOSE: A shock absorber improves a ride comfort by preventing a rapid increase/decrease of diminishing force of an opening/shutting valve manufactured as a plate shape. CONSTITUTION: A shock absorber comprises a valve(2), a guiding device and an operating device. The valve(2) opens/shuts an orifice(62) by moving horizontally on the upper/lower surface of a piston(57). The guiding device installed between the valve(2) and the piston(57) enables the horizontal movement of the piston(57) and prevents the separation of the piston(57) and itself to an other direction. The operating device moves the valve(2) by converting the direction of the force of a fluid(F) horizontally when the piston(57) is moving to an expansive direction.
Patent KR-20000005634-A (KR)
Title: Noodle product
Inventor: MIER PHILIPPE PAUL
IPC: A23L7/109
Filed: 1999-04-30
Abstract: PURPOSE: A full moisture preserved stable noodle product is provided to be consumed by simply heating or cooking in a very short time. CONSTITUTION: The manufacturing method of a noodle product is formed by the steps of: manufacturing the mixture including cereal powder or and the added water; generating a dough by kneading the mixture; make the dough as a sheet; accumulating the obtained sheet; cutting the accumulated sheet lengthily; cutting and dividing the noodle; blanching and cooling the noodle with water; dipping the noodle into the acid water; oiling the noodle; and sterilizing the product at a low temperature as packed.
Patent KR-20000074778-A (KR)
Title: Air force impact mill
Inventor: NA EUN SANG
IPC: B02C23/08
Filed: 1999-05-25
Abstract: PURPOSE: Particle crusher is provided which crushes the smashed coal or limestone particles into a powder form by compression air so that it reduces energy to a certain degree. CONSTITUTION: The particle crusher comprises the parts of: an exterior barrel(10) wherein a discharge pipe(11) is placed in an upper and middle place; a funnel-shaped interior barrel(20) wherein wing-shaped pieces(21) are placed at regular intervals to form a whirlpool; a hoffer(30)(30a) which is respectively connected to the outside of screw conveyors(31)(31a) in the exterior barrel; and a pairs of injection pipes(40)(40a) which are connected to the lower part of the hoffer and penetrated to the lower part of the exterior barrel.
Patent KR-20000006453-A (KR)
Inventor: MURAKAMI GEIJI
IPC: G02B6/38
Filed: 1999-06-25
Abstract: PURPOSE: The optic fiber connector is provided to adapt for narrow pitch or multi optic fiber connector by protecting an optic fiber although when the optic fiber is unconnected. CONSTITUTION: In optic fiber connector(1), an outer member(2) holds a part of optic fiber separated from connecting section of the optic fiber which is capable of connecting with that of a corresponding optic fiber. An arrangement member(3) is hold by the outer member for moving along the optic fiber. The arrangement member decides a location of the connecting section of the optic fiber. The arrangement member is compressed by a spring(5) to the direction of projection from the outer member. When the optic fiber is connected with the corresponding optic fiber, the arrangement member moves to the opposite direction against the direction of the compressed spring(5), makes the connecting section projected from the arrangement member.
Patent KR-20010004117-A (KR)
Inventor: KWON TAE JEONG
IPC: H01J9/24
Filed: 1999-06-28
Abstract: PURPOSE: A method for forming a barrier rib of a plasma display panel is provided to reduce a production cost by using a powder state material as a barrier rib material. CONSTITUTION: For forming a barrier rib of a plasma display panel, first an ignitible frame having a support plate(10), a spacer(20) disposed on the support plate, and an outer wall disposed at a rim thereof is formed. The barrier rib material is charged in a charging space(A) formed by the spacer of the ignitable frame. The ignitable frame is aligned with a rear side substrate, and is attached to it. The ignitable frame burns by performing a plastisizing process to form the barrier rib. The barrier rib material includes a paste, alumina, and titanium dioxide etc. Since the ignitable frame capable of controlling the shape and the size of the barrier rib is used, it is possible to correspondent to the high degree fineness of HDTV. Also, it is possible to use a powder shaped material as the barrier rib material, thereby reducing a production cost.
Patent KR-20010004131-A (KR)
Inventor: KANG GYEONG HO
IPC: G09G3/291
Filed: 1999-06-28
Abstract: PURPOSE: A method and apparatus for driving a plasma display panel in which auto power control is available are provided which applies an erasure pulse while sustain discharge occurs, not to allow the discharge to continue any more. CONSTITUTION: In a method for driving a plasma display panel in which auto power control is available, erasure pulses are applied to scanning lines of the display panel at a predetermined point of time in a discharge sustain period of each sub-field. The erasure pulses cancel a part of discharge sustain pulses which are applied during the discharge sustain period, not to allow the discharge sustain pulse to create sustain discharge. The erasure pulse has the same polarity as that of the discharge sustain pulse and has a width narrower than the discharge sustain pulse. The erasure pulse is applied to the scanning lines right after the discharge sustain pulse is applied to a common line.
Patent KR-20000052294-A (KR)
Inventor: YAMAMOTO YOSIKAZU
IPC: A47G33/00
Filed: 1999-06-30
Abstract: PURPOSE: A memorial tablet of animal which is able to eternally preserve an articles left by the departed of a pet such as deceased dog, deceased cat and the like due to it's good fire-resistant property and heat-resistant property is provided. CONSTITUTION: A memorial table of animal comprises: (i) a specific-shape container stand(1) having a receiving chamber(9) which receives the remains and an articles left by the departed; (ii) a display portion(2) which is made of non-flammable or un-flammable materials and is place on the container stand(1); (iii) a grip unit(3) which is formed on the surface side of the display portion(2) and where a name of animal(4b) and a picture of animal(4a) or a portrait plate(4) are adhered.
Patent KR-19990073305-A (KR)
Title: 농산물전용폐기물감량시스템
IPC: B09B3/00
Filed: 1999-07-01
Abstract: 가. 청구범위에 기재된 발명이 속하는 기술분야. 
     본 발명은 폐 농산물만을 감량화 시키기 위한 것으로, 특히 초고온의 스팀을 이용하여 수분의 90% 이상을 제거토록 하여 감량화시킴과 동시에 멸균 처리토록 하여, 이 과정에서 발생되는 유출수와 감량된 폐 농산물을 공정 중에 필요한 공정수와 열원으로 재사용할 수 있도록 하고, 잔여분은 다른 재생 용품으로 사용할 수 있도록  시스템을 구성한 것이 특징이다. 
     나. 발명이 해결하려는 기술적 과제. 
     종래에 대부분의 폐 농산물은 다른 폐기물과 혼합된 상태에서 전량 매립지에서 매립 처리되었으나, 매립지에서의 침출수 발생 및 농산물 자체의 높은 함수율 로 인한 수송의 어려움과 매립지의 부족으로, 근래에는 폐기물을 탈수시켜 감량시킨 후 건조로에서 건조 및 가열 처리 후 최종 잔여물만을 매립 처리하고 있다. 
     그러나 상기한 처리 공법은 다른 폐기물과의 혼합 상태에서 처리되는 것이기 때문에 폐수와 배출 가스에 의한 제 2의 오염물질이 발생될 뿐 아니라 많은 연료가 공급되어야 하기 때문에 연료비로 인한 유지비가 상승되는 문제점이 있는 것이다. 
     다. 발명의 해결 방법의 요지. 
     본 발명은 투입부(1), 스팀발생기(2)  가열로(3), 건조기(4), 분쇄기(5), 압축성형기(6), 분말가공기(7), 포장기(8)로 형성하여, 상기 투입부(1)에 폐 농산물만(20)을 투입하여 일정 온도(400∼800℃)로 스팀 온도가 유지토록 되는 스팀 발생기(2)를 통과하는 동안 폐 농산물 중에 포함된 엽록체를 파괴시켜 섬유질만 남을 수 있도록 하여 수분의 90% 까지 제거토록 하여 감량시킴과 동시에 멸균처리토록 하여, 이 과정에서 발생되는 유출수(30)는 스팀기(2)의 스팀 발생수로 재사용할 수 있도록 하고, 탈수된 폐 농산물(40)은 건조, 분쇄 공정을 거쳐 수분이 거의 제거된 상태의 분쇄물(40)로 하여 압축 성형 후 가열로(3)에 투입시켜 스팀기(2)의 스팀 발생용 연료로 재사용함과 동시에 건조기(4)에 투입시켜 건조기의 열풍 발생용 연료로 재사용토록 하고, 잔여 분쇄물(50a) 또한 다른 재생 용품으로 사용토록 가공, 포장 공정을 거치도록 시스템을 구성함으로서 2차 오염물질이 없이 폐 농산물을 효과적으로 처리토록 한 것이다. 
     라. 발명의 중요한 용도. 
     폐 농산물 전용 처리용.
Patent KR-20010010140-A (KR)
Inventor: KIM GYEONG A
IPC: C08J3/20
Filed: 1999-07-16
Abstract: PURPOSE: A process of preparing the titled resin having excellent flame retardancy by melt blending a specified amount of flame retardant polyethyleneterephthalate resin obtained by copolymerizing a phosphorous based flame retardant and polyester resin with polybutyleneterephthalate is provided, which produces polyester resin having excellent formability without lowering crystallinity and heat resistance. CONSTITUTION: The process comprise the steps of preparing a flame retardant polyester by carrying out ester interchange reaction of dicarbonic acid or ester derivatives thereof and diol or ester derivatives thereof, introducing 5 to 50% by mole of a phosphorous based flame retardant of formula 1 based on the dicarbonic acid or ester derivatives thereof, reacting for 10 to 60min, adding tetraalkyltitanate substituted with C2-6 alkyl and polycondensing; and melt blending 5 to 50% by weight of a flame retardant polyester and 50 to 95% by weight of resin containing polybutyleneterephthalate as a main repeating unit and having an intrinsic viscosity of 0.70 to 2.0. In formula, R1 is C1-18 alkyl, R2 and R3 are C1-18 alkyl, aryl, monohydroxyalkyl or H; A is C1-18 divalent hydrocarbon.
Patent KR-20010010425-A (KR)
Inventor: LEE SEOK GOK
IPC: B22D11/04
Filed: 1999-07-20
Abstract: PURPOSE: A method for producing a continuously casting shell of Bi-S free cutting steel is provided to minimize inclusions in steel, to reduce pin holes and blow holes in a shell, to improve the degree of central segmentation and to reduce surface breakage in a billet. CONSTITUTION: Bi-S free cutting steel contains 0.036wt% of carbon, less than 0.5wt% of silicon, 1.20-1.40wt% of manganese, 0.07-0.09wt% of phosphorous, 0.270-0.330wt% of sulphur, 0.08-0.16wt% of bismuth, less than 70ppm of nitrogen and 80-150ppm of boron. F(O) is controlled to be 25-100ppm in a tundish. Casting speed is controlled at 0.60-0.70m/min.
Patent KR-20000016961-A (KR)
Inventor: UTSIYAMAMITSURU
IPC: F22G1/00
Filed: 1999-07-21
Abstract: PURPOSE: The method which vapor is heated by electric heater is wasting energy and not efficient. CONSTITUTION: A preparing method of normal pressured over-heated vapor is a useful device of sterilization, dry and cooking. Because this method doesn't need to use high pressured boiler or high pressured chamber it is simple, stable and easy to manage. The normal pressured over-heated vapor is obtained by heating water to form vapor and over-heating the vapor mixed with combustion gas. The combustion gas can be from combustion of liquid or gas fuel containing carbon or hydrogen, or natural gas.
Patent KR-20000017009-A (KR)
Inventor: ARENS ROBERT GEORGE
IPC: G02B6/36
Filed: 1999-08-02
Abstract: PURPOSE: A ferrule connector manufacturing method for optical fiber is provided to adjust a diameter of a optical fiber ferrule. CONSTITUTION: The method comprises the steps of: providing a optical fiber ferrule having a first diameter and a bore extended to an axis direction, at least partially inserting a rod in of a first terminal of the bore, rotating the optical fiber ferrule, heating the optical ferrule to collapse the ferrule in circumference of the rod, and removing the rob from the optical fiber ferrule. The rod has a second diameter less than the first diameter. The rod is inserted to sort an axis of the rod with an axis of the bore.