baber/WOPTO huggingface dataset:
Patent KR-910005060-B1 (KR)
Inventor: SAWYER QUENTAN T
IPC: F41A19/28
Filed: 1984-08-27
Granted: 1991-07-22
Abstract: 내용 없음.
Patent KR-870000790-B1 (KR)
Title: Method for constructing concrete road surface
Inventor: YANG HWA-SOK
IPC: E01C21/00
Filed: 1984-10-17
Granted: 1987-04-18
Abstract: This invention relates to the permeation treatment method of useful composite for the improvement of the water proof and for keep ice- free at the surface of concrete road. The concrete road (1) surface (2) is heated at 100-250≰C, and the fine porosity (3) is expanded. The permeation composite(4) which binds with the aspalt is poured into the concrete road surface and permeated into the inner parts of concrete road through the fine porosity and forms a binding layer (5) .
Patent KR-860001343-B1 (KR)
Title: Electronic band selector with muting function
Inventor: LEE SOK-U
IPC: H03J5/00
Filed: 1984-10-23
Granted: 1986-09-15
Abstract: An electronic band selector for a varicon tuner for removing pop- noise comprises AM/FM receivers(1, 2), transmitting gates (G1-4), band selectors(SW1-2), NAND gates(NAND1-2), constant voltage suppliers(3, 4), AM/FM indicators(5, 6), and positivedetectors(7, 8). The voltage of a condenser(C1) is discharged gradually soon after the power source(B+) is disconnected. When the voltage of the condenser(C1) is reaches a figure less than the operating voltage(V), the outputs of the NAND gates provide low voltage pulses to cut off the transmitting gates so that the popnoise is removed.
Patent KR-890004994-B1 (KR)
Title: Address translation control system
Inventor: TONE HIROSADA
IPC: G06F12/08
Filed: 1984-12-28
Granted: 1989-12-04
Abstract: The entries to an address translation buffer include a valid flag, a logical address filed, and a physical address field.  A memory array stores copies of the flags and physical addresses stored in the buffer.  A register stores addresses to be purged in the buffer.  The physical address stored in the buffer is compared with the addresses stored  in the purge resistor by a comparator. A second comparator makes a comparison between addresses stored in the purge register and addresses stored in the memory array.  If the comparison made by the first comparator is not true then the respective physical address read from the address translation buffer is used.
Patent KR-890000203-B1 (KR)
Title: A plasma gas discharge
Inventor: DARK YONG-SUK
IPC: H01J11/38
Filed: 1985-09-06
Granted: 1989-03-10
Abstract: The tube comprises an upper (1) and lower (2) base plates, electrodes (1', 2') formed face to face on each base plate, dielectric materials (3,4), and an intermediate glass plate (6) inserted between the dielectric materials.  The intermediate glass plate has 4 grooves (H1-4) per one pixel, of which depths are different from each other. According to different discharge depths, various or different brightnesses are provided by discharging on the corresponding grooves.
Patent KR-870001367-B1 (KR)
Title: High hygroscopic property hollow yarn's making method
Inventor: U JONG-YOL
IPC: D01D5/34
Filed: 1985-11-11
Granted: 1987-07-20
Abstract: This invention relates to the manufacturing method of fine porous hollow yarn which has an excellent hygroscopic property. A thermoplastic resin such as polyamid or polyester which forms a fiber and another thermoplastic resin such as polystyrene which is melted easily by a solvent from a two component composite yarn with the use of a composite spinneret apparatus.  After this process, the soluble thermoplastic resin is melted and removed by using a solvent, and the fine porous hollow yarn is made.
Patent KR-930005583-B1 (KR)
Inventor: L ESPERANCE FRANCIS A
IPC: A61F9/00
Filed: 1986-06-27
Granted: 1993-06-23
Abstract: 내용 없음.
Patent KR-890003482-B1 (KR)
Title: Clock interface circuits of personal computer
Inventor: CHONG YONG-HYON
IPC: G06F1/04
Filed: 1986-07-04
Granted: 1989-09-22
Abstract: This interfacing circuit supplies a low speed clock (477 MHz) and a high speed clock (8 MHz) according to the user's choice and improves the processing speed of system without modification of software.  The clock interface circuit is composed of a first clock generation part (10) (high speed clock) and a second clock generation part (20) (low speed clock).  A reset circuit (30) supplies the initial reset signal to the circuits (10,20).  The selection part of clock input (40) supplies the selected clock out of two clock signals to the CPU.
Patent KR-910002371-B1 (KR)
Inventor: SCHERRER ROBERT A
IPC: A61P17/00
Filed: 1986-07-21
Granted: 1991-04-20
Abstract: 내용 없음.
Patent KR-890002994-B1 (KR)
Title: The perpendicular line measurement system
Inventor: LEE BYONG-HA
IPC: G01C9/12
Filed: 1986-11-20
Granted: 1989-08-16
Abstract: The device for precisely measuring a vertical line comprises a thread holder (3) hanging a plumb (1) with a thread (2) at its center (P1), and a measuring tool (7) in which two light sources (5,5') are mounted and two screens (6,6') having center points (K1, K2) are prepared at the corresponding opposite sides to the light sources. When the centers of both the upper member (G1) and the thread holder are concentric, the shadow of thread is obtained on the screens by the light from the photodiodes (D1, D2) which passes the lenses (L1, L2) via the slits (S1, S2) of the shading plate (T1, T2).
Patent KR-900003158-B1 (KR)
Title: Method for producing electric circuits an a base board
Inventor: YAMAHIRO IWASA
IPC: H05K1/16
Filed: 1987-01-13
Granted: 1990-05-09
Abstract: Electric circuits are formed on a base board by etching a copper lamination attached to one side of the base board to form first conductive circuits, then applying a plating-resistant resist coating except at portions to be connected to other circuits to be formed on the first conductive circuits. Copper paste is coated on the base board in such a manner that the first conductive circuits may be divided into at least 2 portions to be electrically isolated from each other. The base board is heated to effect hardening, cleansed, then immersed in metal plating soln. to provide a metal plating layer on the copper paste to form second conductive circuits of at least 2 isolated portions of a second lamination layer composed of the metal plating layer and Cu paste. Conductive paste is coated on a part of each of the isolated portions of the second circuits and hardened by heating to form a pair of terminals.
Patent KR-890004378-B1 (KR)
Title: Dynamic devider 2 circuit
Inventor: NA SANG-JU
IPC: G06F1/04
Filed: 1987-06-30
Granted: 1989-10-31
Abstract: The divider comprises a first output method for charging a first capacitor (C1) and for transmitting a charging value (Q1) when a first P-MOS and N-MOS transistors and clock signal have same "low" level, a second output method for discharging a second capacitor (C2) and for transmitting a dischage value (Q2) when the clock signal and output signal of the first method have same "high" level, and a third output method for charging a third capacitor (C3) by dividing the clock signal by halves after preset signal drops from high to low and for transmitting former state of the third capacitor to the first N- MOS and P-MOS transistors in the first output method.
Patent KR-930003054-B1 (KR)
Inventor: STOL KURT
IPC: F16K31/06
Filed: 1987-09-23
Granted: 1993-04-17
Abstract: 내용 없음.
Patent KR-950013011-B1 (KR)
Inventor: DERAUCHI GIYOSHI
IPC: F04B27/10
Filed: 1987-09-25
Granted: 1995-10-24
Abstract: 내용 없음.
Patent KR-960000174-B1 (KR)
Inventor: OMURA TAKASHI
IPC: C09B62/51
Filed: 1987-10-24
Granted: 1996-01-03
Abstract: 내용 없음.
Patent KR-910003548-B1 (KR)
Inventor: SUZUKI HIROKAZU
IPC: H03K19/00
Filed: 1987-11-30
Granted: 1991-06-04
Abstract: 내용 없음.
Patent KR-910006610-B1 (KR)
Inventor: AZUMI TAKASHI
IPC: G01C3/00
Filed: 1987-12-11
Granted: 1991-08-29
Abstract: 내용 없음.
Patent KR-900006095-B1 (KR)
Title: Anti-theft device
Inventor: CHO HYUN-GUK
IPC: B60R25/04
Filed: 1988-02-13
Granted: 1990-08-22
Abstract: The system includes an ultrasonic sensor detecting the object movement, a proximity sensor detecting the approach of person, a sound sensor sensing the sound caused at smash of window glass, an impact sensor detecting shock saused at smash of bonnet and a door sensor detecting open of the car door. The outputs of the sensor are provided to a microprocessor to drive the warning apparatus like siren speaker, headlight, or strobe flash. Although the thief intrudes into the car by chance, he can not drive the car because the keyboard must be released by the remote controller of owner. The system ignores the instant shock caused by children or peripheral noise.
Patent KR-910009991-B1 (KR)
Inventor: YAMAURA TATSUO
IPC: H01L23/482
Filed: 1988-04-06
Granted: 1991-12-09
Abstract: 내용 없음.
Patent KR-910007549-B1 (KR)
Inventor: SIOMURA TESSUNOSUKE
IPC: C08G18/34
Filed: 1988-06-18
Granted: 1991-09-27
Abstract: 내용 없음.
Patent KR-950013749-B1 (KR)
Title: Plurality of tiny pills in liquid dosage form
Inventor: FELIX THEEUWES
IPC: A61K9/56
Filed: 1988-10-21
Granted: 1995-11-15
Abstract: A delivery system is disclosed for delivering a beneficial agent to an environment of use. The delivery system comprises a plurality of tiny dosage forms comprising a beneficial agent. The delivery system also comprises means for maintaining (a) the physical and chemical integrity of the dosage forms and for (b) inhibiting delivery of the beneficial agent during non-performance of the delivery system.
Patent KR-910006722-B1 (KR)
Inventor: SATTO MASAYUKKI
IPC: C09G1/14
Filed: 1987-10-14
Granted: 1991-08-31
Abstract: 내용 없음.
Patent KR-930002865-B1 (KR)
Inventor: EXNER KARL-CHRISTOPH
IPC: B23K11/24
Filed: 1989-02-25
Granted: 1993-04-12
Abstract: 내용 없음.
Patent KR-930007400-B1 (KR)
Inventor: SUGAWARA SAKUO
IPC: G05D23/19
Filed: 1989-04-21
Granted: 1993-08-09
Abstract: 내용 없음.
Patent KR-910008390-B1 (KR)
Title: Method for generating linear test pattern in page printer
Inventor: CHUNG KWANG-YOUNG
IPC: G06K15/00
Filed: 1989-07-21
Granted: 1991-10-15
Abstract: The linearity test pattern  generating  circuit  includes  an up-down counter and a counter. A buffer circuit  (120)  connecting between the up-down counter and the counter  supplies  the  buffed output of the up-down counter to the counter. An inverter  circuit (121) supplies the inverted output of the up-down counter  to  the counter. A counter  control  means  controls  the  adding  counter operation of the up-down counter by  inverting  the  output  logic according to the carry signal of the up-down counter. And a  print data position control means switches the operation of  the  buffer and the inverter circuits to control the outputs of them.
Patent KR-970004260-B1 (KR)
Title: Bus status test method
Inventor: JUNG TAEK-KEUN
IPC: G06F11/30
Filed: 1989-07-31
Granted: 1997-03-26
Abstract: Disclosed is a test jig to sense moving of bus for micro channel structure. Circuit in the test jig comprises a micro channel slot(1), the first PAL decoder(2), an address latch(100), an address converter(200), the first and second displayers(300, 400).  The first PAL decoder(2) decodes various signal from the micro channel slot(1).  The address latch(100) latches a channel address from the micro channel slot(1) according to output from the first PAL decoder(2).  The address converter(200) decodes binary output data from the address latch(100) into hexadecimal code.  The first displayer(300) displays outputs from the address converter(200).  The second displayer(400) displays current state fo bus cycle according to the ouput from the first PAL decoder(2).  Thereby, the state of bus cycle is directly monitored, and the channel error can be captured.
Patent KR-0143562-B1 (KR)
Inventor: FETCENKO MICHAEL A
IPC: H01M4/38
Filed: 1989-09-22
Granted: 1998-08-17
Abstract: 내용 없음.
Patent KR-950012376-B1 (KR)
Inventor: UMEDA HIROTAKA
IPC: B62D5/083
Filed: 1989-10-14
Granted: 1995-10-17
Abstract: 내용 없음.
Patent KR-0166349-B1 (KR)
Inventor: IDA MITSURU
IPC: G11B15/44
Filed: 1989-11-18
Granted: 1999-03-20
Abstract: 내용 없음.
Patent KR-920010310-B1 (KR)
Inventor: HAMAMURA JIYO
IPC: G01L3/10
Filed: 1989-11-20
Granted: 1992-11-26
Abstract: 내용 없음.
Patent KR-0134959-B1 (KR)
IPC: C04B41/50
Filed: 1990-01-12
Granted: 1998-04-18
Abstract: This invention relates generally to a novel method of manufacturing a composite body and to novel products made thereby. More particularly, the invention relates to a method of producing a self-supporting body comprising one or more boron-containing compounds, e.g., a boride or a boride and carbide, by reactive infiltration of molten parent metal into a bed or mass containing boron carbide, and, optionally, one or more inert fillers and permitting residual or excess parent metal, to remain bonded to the formed self-supporting body. Excess metal is used to form a bond between the reactively infiltrated body and another body (e.g., a metal or a ceramic body).
Patent KR-0124807-B1 (KR)
Inventor: KATOH HIDEO
IPC: C08G63/189
Filed: 1990-04-20
Granted: 1997-12-04
Abstract: 주요 반복 단위인 에틸렌-2,6-나프탈렌 디카르복실레이트 단위로 구성되고 고유점도가 0.45∼0.90인 방향족 폴리에스테르로 형성되어 있는 방사선 조사용 래빗으로서, 방향족 폴리에스테르는 금속 불순물로서 50ppm 이하의 티탄을 함유하고, 티탄 이외의 금속 불순물은 실질적으로 함유하지 않으며, 그리고 용기벽의 적어도 일부는 그 평면배향지수가 0.1∼0.28이고 밀도가 1.345∼1.36g/㎤이도록 배향된 상태로 있는 방사선 조사용 래빗.
Patent KR-930008064-B1 (KR)
Title: Image signal compression and restoring method and its apparatus
Inventor: OH YONG-KYU
IPC: G06K15/00
Filed: 1990-09-19
Granted: 1993-08-25
Abstract: In the color image printer, the picture data will divide into an even number field and odd number field. If an even number field exists then odd  image  data  is  accepted.  When  this  condensed picture data is  restored,  and  the  picture  data  averages  the dificiency picture data values.
Patent KR-930004484-B1 (KR)
Title: Insulation for hood
Inventor: OM BONG-YONG
IPC: B62D25/00
Filed: 1990-12-31
Granted: 1993-05-27
Abstract: The insulating material is obtained by (1) mixing 65-80  wt.% of glass fiber (diameter = 10 μm, length =  50-75  mm)  and  20-30 wt.% of polyester (length = 70-100 mm), and then carding  it,  (2) adding 10-30 wt.% of powder resin into 100 wt.% of the mixture and impregnating it, (3) coating the impregnated with nonwoven fabric, and (4) heat pressing at 200-230 deg.C. The powdary resin  is  ABS or epoxy resin. The  insulating  material  has  an  improved  heat resistance, tensile  strength,  weather  resistance  and  chemical resistance, and is useful for automobile hoold.
Patent KR-100205439-B1 (KR)
Inventor: KU HONG-SEOP
IPC: H01L21/30
Filed: 1991-02-07
Granted: 1999-07-01
Abstract: 본 발명은 마스크와 실리콘간의 높은 식각 선택비를 얻으므로써 공정의 안정화와 고도의 재현성을 이룰 수 있고 집적도를 증가시킬 수 있는 실리콘 습식 식각 방법을 제공하기 위한 것으로 이를 위해 마스크로서 산화막을 사용하고, 화학 용액으로서 HF : HNO 3 = 1 : 130 비율의 불산/질산 혼합용액을 사용하며, 약 25℃의 상온에서 매초당 1회씩 상, 하로 흔듬으로써 실리콘을 습식 에치한다.
Patent KR-940000031-B1 (KR)
Title: Microbiocides immobilized in water-soluble thermoplatic polymeric resins and aqueous dispersions of microbiocides prepared therefrom
Inventor: REI NUNO M
IPC: D06M13/02
Filed: 1991-04-01
Granted: 1994-01-05
Abstract: Solid solutions comprise a water-soluble thermoplastic resin and a microbicide dissolved therein. These solutions may be added to a rigid thermoplastic resin composition to impart biocidal characteristics thereto. If the microbicide is water-insoluble, the solid solutions may be used to prepare stable dispersions of the microbicide. The solutions also provide for slow release of a microbicide or as a vehicle for providing microbicide to an aqueous solution.
Patent KR-100190823-B1 (KR)
Title: A therapeutic agent for dysuria comprising alpha-phenyl-alpha-pyridylalkanoic acid derivatives
Inventor: TOMOI MASAAKI
IPC: A61K31/4402
Filed: 1991-04-16
Granted: 1999-06-01
Abstract: A pharmaceutical composition as a therapeutic agent for dysuria comprising a compound of the formula : <CHEM> wherein R<1>, R<2> and R<3> are each lower alkyl, or its salt, as an active ingredient in association with a pharmaceutically acceptable, substantially nontoxic carrier or excipient.
Patent KR-100219914-B1 (KR)
Inventor: JOHANN JACKEL
IPC: F16F15/315
Filed: 1991-05-29
Granted: 1999-09-01
Abstract: 발명은 예를 들어 DE-OS 37 21 705를 통해 알려진 분리된 플라이휘일에 관한 것이다. 이것은 기어박스로부터 정합되거나 부정합되는 제 2 플라이휘일질량과 내연기관에 고정되는 제 1 플라이휘일질량을 갖고 있으며 플라이휘일질량은 서로에 관해 회전하도록 장착되며 베어링에 의해 서로에 관해 위치하게 된다.
Patent KR-940009294-B1 (KR)
Inventor: WATABE MASAYUKI
IPC: G07F19/00
Filed: 1991-07-11
Granted: 1994-10-06
Abstract: 내용 없음.
Patent KR-100204919-B1 (KR)
Title: Electromechanical timepiece
Inventor: FERENCZY LASZLOH
IPC: G04C3/00
Filed: 1991-08-06
Granted: 1999-06-15
Abstract: The present invention relates to a timepiece of the electromechanical type. This invention has a movement provided with control means such as an electronic circuit connected with a resonator, a source of electrical energy, and in particular battery, and electrical connection means to connect this battery to the control means via the intermediary of a first supply path wherein the electrical connection means also supply a second parallel supply path which is capable of providing a substantially permanent and reliable connection between at least one of the poles of the battery and the control means. This invention has applications in any electromechanical timepiece such as, for example, a wristwatch.
Patent KR-940005173-B1 (KR)
Inventor: OHTSUBO HIROYASU
IPC: H04N5/335
Filed: 1991-10-30
Granted: 1994-06-11
Abstract: 내용 없음.
Patent KR-940007370-B1 (KR)
Title: Method of manufacturing steel pipe
Inventor: YU HO-CHON
IPC: C21D8/10
Filed: 1991-12-30
Granted: 1994-08-16
Abstract: After manufacturing a steel ingot comprising 0.02-0.06 wt.% of C, not more than 0.50 wt.% of Si, not more than 1.00 wt.% of Mn, not more than 0.04 wt.% of P, not more than 0.005 wt.% of S, 0.10-0.50 wt.% of Cu, 0.10-0.50 wt.% of Ni, and not more than 1.0 wt.% of Cr, the ingot is heat stripped to form steel pipe material, and electric resistance welded, and heated again at a temperature range of 900-1100 deg.C to be heat imprinted, air cooled, and normalizing heat treated at 800-1100 deg.C to obtain electrically sealed steel pipe having excellent corrosion resistance. Alternatively, the heat imprinted product is heated to 800-1100 deg.C and water-cooled and then tempering heat treated at 450-650 deg.C to obtain the steel pipe.
Patent KR-0160991-B1 (KR)
Title: Temperature activated adhesive assemblies
Inventor: STEWART RAY F
IPC: C09J7/35
Filed: 1991-11-11
Granted: 1999-01-15
Abstract: Temperature-activated adhesive compositions formulated with crystallizable polymers are provided. The compositions, which display a rapid transition from the tacky to the nontacky state, and/or from the nontacky to the tacky state, are useful in medical applications, where adhesion of a substrate to the skin is desired, as well as in a variety of nonmedical applications. Temperature-activated adhesive assemblies such as tapes, labels, and the like for use in a number of contexts are provided which assemblies have a moisture vapor transmission rate which is compatible with human skin, e.g., above 500 g/m2/day at 37 DEG  C. and a 100% to 10% relative humidity difference.
Patent KR-950014844-B1 (KR)
Inventor: CANN KEVIN J
IPC: C08F10/00
Filed: 1991-04-02
Granted: 1995-12-16
Abstract: 내용 없음.
Patent KR-0133320-B1 (KR)
Inventor: SPERLAZZO PIERO
IPC: H01J37/317
Filed: 1992-01-20
Granted: 1998-04-16
Abstract: 본 발명은 반도체 웨이퍼 (41)를 도핑하는 이온 주입시스템 (10)에 사용되는 이온비임에 대해 위치한 센서 (110,210)에 관한 것이다.  센서는 이온비임 전위를 매우 정확히 결정해 이전위를 최소화 한다.  바람직한 설계로서 다수의 전지가 이온비임 전위를 결정하게 하는  제어전압으로 바이어스 되고 이온비임에 대해 위치한다.  하나의 실시예에서 이온비임 전위는 중성전자를 이온비임으로 주입하는 것을 제어하는데 사용된다.
Patent KR-940008756-B1 (KR)
Title: Shadow mask of c-crt
Inventor: HAN YU-CHOL
IPC: H01J29/07
Filed: 1992-03-26
Granted: 1994-09-26
Abstract: The shadow mask improves a horizontal pitch array of electron beam hole so as to improve the color purity of a screen peripheral part especially according to the electron beam exactly landing to the corresponded fluorescence point in the whole screen. In the horizontal pitch array of the electron beam hole it is proportionated between the horizontal pitch changing rate on optional postions of resp. axes such as a long axis, a short axis and a diagonal axis and the changing rate of distance on the optional postions of resp. axes.
Patent KR-940003685-B1 (KR)
Inventor: KO BAE-CHAN
IPC: B42D1/08
Filed: 1992-04-21
Granted: 1994-04-27
Abstract: 내용 없음.
Patent KR-940010248-B1 (KR)
Title: Apparatus for opening & closing cover of greenhouse
Inventor: YUN MU-WON
IPC: A01G9/24
Filed: 1992-06-03
Granted: 1994-10-22
Abstract: Round type or U type bolster (2) is installed on the outside of the frame body (1) of the greenhouse. A guide roller (5) is guided into outside of the bolster installing a rotating axle (4). A pulley (6) attached to the rotating axle is wound by the transferring rope (61), both the ends of it are fixed to the lower fixed members (22,22a). A drum roll (7) of rope is connected to the ?????rotating axle, and a rope (12a) for a cover. The heat insulation cover is opened and closed by these ropes (12,12a).
Patent KR-960006082-B1 (KR)
Title: Conductive silver paint containing copper powder
Inventor: RYU KWANG-JIN
IPC: C09D5/24
Filed: 1992-10-27
Granted: 1996-05-08
Abstract: The silver paint is made by mixing silver powder containing 10-40% copper powder and dispersion solution with adhesive and solvent. It increase reliability of a condenser by blocking the migration phenomenon of silver and decrease the defective fraction of product by reinforcing wet-proof property.
Patent KR-970006463-B1 (KR)
Inventor: TOMIJAWA NOBUO
IPC: C02F1/28
Filed: 1992-12-04
Granted: 1997-04-28
Abstract: 내용없음.
Patent KR-100212195-B1 (KR)
Inventor: HWANG IN-TAE
IPC: H04B7/26
Filed: 1992-12-31
Granted: 1999-08-02
Abstract: 본 발명은 셀룰라폰의 톤신호송출방법에 관한 것으로, 셀룰라폰에 저장된 전화번호를 다이얼링하여 일반전화기를 통해 전화 통화하는 경우 셀룰라폰에 메모리된 전화번호의 검색후에 톤신호 송출버튼을 사용하여 일반전화기의 송화기에 톤다이얼링 함으로써 일반전화 통화시의 사용 편리성을 향상시킴과 동시에 저렴한 통화가 가능하도록 하는 셀룰라폰의 톤신호 송출방법에 관한 것이다. 
     본 발명에 따르면 셀룰라폰의 메모리에 저장된 전화번호를 선택하여 일반 유선 전화기의 송화기에 DTMF톤신호를 송출하게 되므로 일반 유선 전화기를 사용하는 경우 전화번호의 기억이 불필요하게 될 뿐만 아니라 직접 전화버튼을 조작해야 할 필요성도 배재된다. 더욱이 본 발명에 따른 톤신호송출방법에 의하면 일반 유선 전화기를 편리하게 사용할 수 있게 하므로 통화료의 절감효과가 기대될 수 있는 장점이 있다.
Patent KR-100213581-B1 (KR)
Inventor: FERGASON JOHN D
IPC: G01J1/02
Filed: 1992-02-19
Granted: 1999-08-02
Abstract: 밝은 상태에서는 액정셔터(10)를 구동 또는 동력을 공급하기 위한 비교적 낮은 교류전압신호를 나타내며, 어두운 상태에서는 셔터(10)를 초기에 구동하기 위하여 그리고 그후 어두운 상태에서 셔터(10)를 유지하기 위하여 두 개의 비교적 높거나 큰 교류 전기신호를 나타내는 액정용접렌즈(10) 또는 셔터용 파워 서플라이회로(14); 어두운 상태에서 전력사용을 최소화하며 밝은 상태에서 명멸을 방지하기 위하여 셔터(10)에 대한 구동회로의 주파수를 변환하기 위한 가변주파수 회로(61); 전력절약 및 배터리 레벨지시 특성을 포함한다.
Patent KR-960001240-B1 (KR)
Title: Half precast concrete slab
Inventor: KIM KEUNG-HWAN
IPC: E04B5/38
Filed: 1993-02-09
Granted: 1996-01-24
Abstract: The half precast concrete slab is characterized by (a) placing a field concrete(40) on the upper slab, (b) arranging a reinforcing bar(31) with gratings on and inside PC(Precast Concrete) bottom plate, (c) burying hooks(32) to protrude to the surface of junction section between the field concrete and the concrete slab. The hook has a fixed part(32") which contacts the multi-hook(32') and the reinforcing bar with a linear bar and is fixed vertically to the reinforcing bar. The multi-hook is stationed at the position of L/5 and L/2, where L/2 indicates near both ends of PC bottom plate and L/5 expresses a center part of that, L is the length of PC bottom plate. The surface of the bottom plate on which the field concrete is placed is completed by rough finishing.
Patent KR-960006159-B1 (KR)
Inventor: ANDO TOSHIHIKO
IPC: C08F287/00
Filed: 1993-03-22
Granted: 1996-05-09
Abstract: 내용 없음.