baber/WOPTO huggingface dataset:
Patent KR-900008765-B1 (KR)
Title: A high power,high frequency attanuator method and apparatus
Inventor: PON CHUCK Y
IPC: H01P1/22
Filed: 1983-07-27
Granted: 1990-11-29
Abstract: A high power, high frequency attenuator which provides attenuation steps which are switchable at very high speed, the attenuator implementing a method by which the input signal is split into two separate signals which are then subjected to impedance mismatches in the signal path, so that a portion of the split signals are reflected back to the signal splitter for dissipation there and the remaining portions of the split signal are transmitted to a summing circuit for recombination and output. The value of mismatch imposed determines the degree of attenuation obtained. The splitting of the signal reduces the stress upon the mismatched components as well as permits high switching speeds of the mismatches in and out of the circuit. In one embodiment of the invention directional couplers are used to provide the signal splitting and recombination functions, with the result that high isolation is achieved between the input port and the reflected signal caused by the mismatches.
Patent KR-850000254-B1 (KR)
Title: Making method for a saw blade
Inventor: CHO KYONG-YANG
IPC: B23D65/00
Filed: 1983-08-20
Granted: 1985-03-14
Abstract: In manufg. a band saw for cutting mother-of-pearl, a steel wire (1) is passed through holes that are formed on both sides of a plastic or metallic bowl (2) filled with lacquer or resin (4). A diamond powder layer is formed on the lacquered or resined steel wire. In the section of wire the long diameter is 2.5-3.5 m/m and the short diameter is 0.2-0.25 m/m before lacquering. After lacquering the long diameter is 2.6-3.6 m/m and the short diameter is 0.25-03. m/m. The diamond powder layer formed is thicker thant the steel wire by 0.08- 0.15 m/m.
Patent KR-900008740-B1 (KR)
Inventor: WILSON ELAINE L
IPC: C12N5/00
Filed: 1983-12-30
Granted: 1990-11-29
Abstract: 내용 없음.
Patent KR-920008396-B1 (KR)
Inventor: KAWAJIMA MASADOSHI
IPC: H01L27/118
Filed: 1984-05-25
Granted: 1992-09-28
Abstract: 내용 없음.
Patent KR-870001722-B1 (KR)
Title: Fuel supplying apparatus
Inventor: YOSHIDA DAKEOMI
IPC: B67D7/30
Filed: 1984-10-20
Granted: 1987-09-25
Abstract: Oil supply nozzle(14) is provided at the edge of the oil supply pipe(15).  A measuring device(18,19) measures the oil flow rate of the pipe.  An unit mode set switch is provided on the nozzle(14) to detect whether the oil supply device is on the oil supply state or the nonsupply state by the oil supply state of the measuring device. A detecting device judges the oil suply device is on the pre-set mode before the oil supply or on an integer supply mode on the oil supply when the mode set switch is operated.  The pre-set oil supply is operated when the set switch is on the pre-set mode, and the minimum integer oil supply is operated when the switch is set on the integer mode.
Patent KR-880000656-B1 (KR)
Title: Porous body
Inventor: SO GON
IPC: C04B38/00
Filed: 1985-01-12
Granted: 1988-04-20
Abstract: A fine porous body is prepared by following processes as adding water below 30 wt.% to a sufficiently mixed composite of 40-80 wt.% natural zeolite, 15-30 wt.% kaolin or glass powder and 5-25 wt.% starch, molding the product under 0.5-5 kg/cm2 pressure, burning starch at 400-500≰C from the molded material after dry and sintering at 800- 1000≰C and applying glaze partially.
Patent KR-900000579-B1 (KR)
Title: A method and apparatus of liquid jet velocity measurement
Inventor: PARKER DANIEL
IPC: G01P5/20
Filed: 1985-01-24
Granted: 1990-01-31
Abstract: The velocity of a liquid jet, such as the headbox jet of a paper making machine, is measured by cross-correlation of AC signal components produced by a pair of light beams received by a pair of photodiodes (24,26).  The light is supplied by a single source, an incandenscent lamp (29), and is guided by a pair of bifurcated fiber optics (28,30) mounted above the jet and spaced apart in the flow direction.  The AC components are filtered by a filter (42) to remove flow frequencies, amplified by an amplifier (44) and then analyzed in a spectrum analyzer (48).
Patent KR-900005982-B1 (KR)
Title: Method and control system for limiting compressor capacity in a refrigeration system upon a recycle start
Inventor: MOUNT GORDON L
IPC: F25B1/00
Filed: 1985-05-13
Granted: 1990-08-18
Abstract: The compression refrigerator control system consists of a temperature sensor recording the actual temp. of the cooled transfer medium when the refrigerator is operating and signals this to a controller for processing so as to switch on the refrigerator to meet cold requirements at a given speed and cut it out when this is achieved. The controller (17) should include a hot starter which raises the compressor at a second preset speed to a preset output from the minimum output at which the compressor has switched off. The second speed should be less than the speed with which the controller raises output from minimum after a cold start.
Patent KR-920001806-B1 (KR)
Inventor: SANNO HIROAKI
IPC: D01H9/16
Filed: 1985-06-14
Granted: 1992-03-03
Abstract: 내용 없음.
Patent KR-890000946-B1 (KR)
Title: Scan raster jitter correction device
Inventor: HAN YUN-CHO
IPC: H04N3/22
Filed: 1985-09-12
Granted: 1989-04-14
Abstract: The circuit comprises a counter (28) for storing counted clock signal into a memory (27) which is generated by an oscillator (26) during the period from start to stop of the scanning operation, a serial/ parallel shift register (30) for converting serial image signal into parallel one with oscillation or delay clock signal according to the count number stored in (27), a multiplexer (31) for providing selected signal from (30), and a light/electric modulator (32) for inputing the modulated output of (31) into a light intensifying modulator (16).
Patent KR-930008210-B1 (KR)
Title: Process for the preparation of macropolycyclic rare earth complexes
Inventor: MATHIS GERARD
IPC: C07D471/22
Filed: 1985-09-26
Granted: 1993-08-26
Abstract: The invention relates to macropolycyclic rare earth complexes, namely cryptates which are useful as fluorescent tracers.
Patent KR-930007367-B1 (KR)
Inventor: KAKIZAKI TAKEHIRO
IPC: H01J29/74
Filed: 1985-11-19
Granted: 1993-08-09
Abstract: 내용 없음.
Patent KR-930008481-B1 (KR)
Title: Detergent compositions
Inventor: GOSELLINK YUJIN P
IPC: C11D3/37
Filed: 1985-12-21
Granted: 1993-09-07
Abstract: Block polyesters useful as soil release agents in detergent compositions are disclosed. Preferred polyesters have the formula: <CHEM> wherein each R<1> is 1,4-phenylene moiety; the R<2> consist essentially of ethylene moieties, 1,2-propylene moieties or a mixture thereof; each X is ethyl or preferably methyl; each n is from about 12 to about 43; u is from about 3 to about 10.
Patent KR-940001723-B1 (KR)
Inventor: ROZA ENGEL
IPC: H03K3/282
Filed: 1986-04-10
Granted: 1994-03-05
Abstract: 내용 없음.
Patent KR-890000938-B1 (KR)
Title: Vane compressor provided with endless camming surface minimizing torque fluctuations
Inventor: YINOMADA KENGICHI
IPC: F01C21/10
Filed: 1986-05-20
Granted: 1989-04-14
Abstract: An endless camming inner peripheral surface of a pump housing performs one cycle of suction, compression and discharge of fluid in cooperation with the vanes and the rotor.  A cam profile includes an increasing radius portion along which the amounts of protrustion of each vane from the rotor gradually increases with movement of the vane.  A disharging radius portion is provided, along with the amount of protrustion of each vane from the rotor gradually decreasing with movement of the vane.  The increasing radius portion and the decreasing radius portion are continuously arranged and in the moving direction of the vanes.  The increasing radius portion terminates in a first half of the whole circumferential length of the one cycle performing portion of the endless camming inner peripheral surface.
Patent KR-900001156-B1 (KR)
Title: Inter network connection system
Inventor: MASUDA DORU
IPC: H04L12/00
Filed: 1986-05-28
Granted: 1990-02-27
Abstract: The inter-work connection system interconnects between a number of signalling networks using a common channel signalling system.  Local signalling network constituted by the gateway offices of two networks to be interconnected is configured between the networks.  A system for transmitting a signal through a number of exchanges has an origination exchange which sets a destination of the signal to one of a number of exchanges as a tandem office and transmits the signal. Each tandem exchange changes the destination of the signal in sequence and finally transmits it to the destination.
Patent KR-890005165-B1 (KR)
Inventor: JIN WOO-SONG
IPC: A47J43/24
Filed: 1986-05-28
Granted: 1989-12-16
Abstract: 내용 없음.
Patent KR-920002814-B1 (KR)
Inventor: HUKUDA GEN
IPC: C02F3/10
Filed: 1986-06-18
Granted: 1992-04-04
Abstract: 내용 없음.
Patent KR-940001844-B1 (KR)
Inventor: SATNICK ALLEN H
IPC: A61B17/3211
Filed: 1986-09-26
Granted: 1994-03-09
Abstract: 내용 없음.
Patent KR-900007416-B1 (KR)
Title: Motion detector for chrominance signal in tv receiver
Inventor: NAKAGAWA ISAO
IPC: H04N5/14
Filed: 1986-11-21
Granted: 1990-10-08
Abstract: The motion detector has an element for delaying the chrominance signal of a video signal by frame period. The output signal of the delay element is subtracted from the input signal and the output signal from the subtractor is input to an absoluted valve converter. If the chrominance signals of video signals on two consecutive frames are the same the output signal of the subtract becomes zero. If the chrominance signals of video signals on two consecutive frames are different, the output signal of the subtractor takes a positive or negative value. The negative value signal is converted into a positive value singal by the absolute value conversion circuit. A signal is output from the smoothe circuit only when the chrominance signals of video signals on two consecutive frames are different. This output signal is a chrominance signal motion detection signal.
Patent KR-900002416-B1 (KR)
Title: As insulated bus bars
Inventor: MARUYAMA SHIROWOO
IPC: H02G5/06
Filed: 1986-11-28
Granted: 1990-04-14
Abstract: A gas insulated bus bar includes a metallic case (2,10) filled up with insulation gas, in which a high voltage conductor member (3) is retained, an insulation spacer (4) supporting the conductor member, a metallic supporting structure (7) prepared at the outer end of the spacer and having a contact (7a) at its end onto the metallic case, and a fixing seat (8) prepared onto the metallic case, by which the supporting structure is fixed with a required clearance.  The metallic case is made from ferrous metal, and the contact surface of the contact (7a) is coated with rustproof conductive material.
Patent KR-950001217-B1 (KR)
Inventor: ERTMAN DITRICH
IPC: C07F5/00
Filed: 1987-09-12
Granted: 1995-02-14
Abstract: 내용없음.
Patent KR-910001975-B1 (KR)
Title: Automatic control apparatus and method for optical detector
Inventor: KIM YOUNG-KI
IPC: G11B7/131
Filed: 1987-11-30
Granted: 1991-03-30
Abstract: The  apparatus  is  for  manufacturing  the  laser  pick  up automatically. The apparatus adjusts the diameter of laser beam up to 1.6 microm, and a light receiving device which center  part  is received the laser beam correctly. The pick up coil  drive  signal through a first and a second switch is  applied  to  the  pick  up coil, then an object glass operates. A search signal from a  third switch is applied to the laser pick up coil  to  focus  the  laser beam when the focusing the laser  beam  is  completed.  The  laser receiving device receives the laser beam refleated by the disk and generates the first-fourth currents using the  first-fourth  laser receiving segments. The apparatus compensates the focus  error  by moving a focus lens and X,Y-axis erros by applying the X,  Y  axis compensation voltage to X,Y-axis actuators with  the  first-fourth currents.
Patent KR-960000004-B1 (KR)
Title: Air filter and module to be used for building up such a filter
Inventor: VAN WEERDEN JAN
IPC: F24F13/00
Filed: 1987-12-23
Granted: 1996-01-03
Abstract: An air filter of which the dimensions may be easily adapted to the shape and dimensions of air ducts, especially air ducts of air condition equipments, comprises a number of frame shaped modules (1) made of plastics material. To each module a filter bag (2) is welded. The side faces (1a, b, c, d) of each module are provided with a system of ribs (5) or embossments (6). For joining modules substantially airtightly together a system of ribs or embossments on a side face of a module is connected to a complementary shaped system of ribs or embossments on the side face of another module by sliding movement or snap action. Preference is given to an embodiment whereby inclined side boundaries of interengaging complementary systems form a dovetail connection.
Patent KR-900004574-B1 (KR)
Title: Process for instant ramyeon
Inventor: SIN JAE-IK
IPC: A23L7/109
Filed: 1987-12-28
Granted: 1990-06-30
Abstract: An instant ramyeon is made by (a) mixing 1Kg of wheat flour and 300 g of acetylated potato starch in the mixer, (b) adding 20g of edible salt and 430g of water to the mixt. and mixing it for 30 mins, (c) shaping it into the noodle of 0.9 mm thickness and 1.2 mm width, (d) steaming the shaped noodle in the steam box at 100 C for 150 seconds., (e) cutting it to the fixed length, (f) frying it for 90 seconds in parm oil of 145 C to obtain the fried material with 5% water content, and (g) cooling it.
Patent KR-910007397-B1 (KR)
Title: Device which generates calling signal
Inventor: YUN HYONG-SOK
IPC: G08B3/10
Filed: 1988-03-19
Granted: 1991-09-25
Abstract: The generator measures all frequency  signals  including  the voice frequency band within 0.5 dB. The logic signal  coming  from switching ICs (IC9,12) selecting one of the band  signals  (A,B,C) is provided to ROMs (IC17,18) outputting the program logic signals which are counted by counters (IC20-23). The counted  signals  and the oscillation signal are rectified by a D flip-flop (IC25) and a divider (IC25). Each rectified signal is oscillated with the  sine wave by corresponding LC resonator,  and  selected  by  an  analog switch (IC26). The selected signal is  adjusted  by  a  comparator (IC27) and matched by a transformer (T).
Patent KR-930006475-B1 (KR)
Inventor: MUSHIAKE KAZUO
IPC: G06F7/24
Filed: 1988-04-14
Granted: 1993-07-16
Abstract: 내용 없음.
Patent KR-970001662-B1 (KR)
Inventor: BUROUT N CHARLES J
IPC: B26B21/54
Filed: 1988-04-28
Granted: 1997-02-13
Abstract: 내용 없음.
Patent KR-930000530-B1 (KR)
Inventor: HANKAMER HEINZ
IPC: B01D24/00
Filed: 1989-03-24
Granted: 1993-01-25
Abstract: 내용 없음.
Patent KR-910008424-B1 (KR)
Title: Apparatus for sending magnetic card
Inventor: LEE SANG-SOO
IPC: G06K13/06
Filed: 1989-06-20
Granted: 1991-10-15
Abstract: A system is designed to improve card deformation and slipping in the roller-used system and torgue and tension problems  in  the belt- driven system. So the system features removing speed changing mechanism, easy installation  of  idle  roller,  compact  size  by placing roller around circular drum and saving manufacturing cost. This  equipment  is  composed  of  magnetic  card  in/outlet  (8), circular drum (1) operating by motor, idle rolling of at least one idle roller (3a,3a',...,3d,3d'), guider (2) to  prevent  derailing card and magnetic head to read information of  card  or  to  write data on it. The magnetic card (12) is inserted in between drum and idle roller and is guided to rotate by priction force.
Patent KR-0141695-B1 (KR)
Inventor: KIKUCHI YASUHIKO
IPC: A23L27/12
Filed: 1989-07-14
Granted: 1998-06-01
Abstract: 내용 없음
Patent KR-970006389-B1 (KR)
Title: Detection and amplification of target nucleic acid sequence
Inventor: LAFFLER THOMAS G
IPC: C12Q1/68
Filed: 1989-08-30
Granted: 1997-04-28
Abstract: A method and kits for amplifying and detecting target nucleic acid sequences in a sample is disclosed. the method employs primers which have reactive pair members linked to them. The reactive pair members can be attached to a solid phase and/or detected by labeled conjugate.
Patent KR-930009321-B1 (KR)
Inventor: ODA YASUDO
IPC: B67D7/04
Filed: 1989-10-07
Granted: 1993-09-27
Abstract: 내용 없음.
Patent KR-970004559-B1 (KR)
Inventor: SEIKE SHOJI
IPC: H01B17/00
Filed: 1989-10-14
Granted: 1997-03-29
Abstract: 요약없음
Patent KR-930005774-B1 (KR)
Inventor: LIM PATRICK C
IPC: G06F3/023
Filed: 1989-11-09
Granted: 1993-06-24
Abstract: 내용 없음.
Patent KR-920000010-B1 (KR)
Title: Combustion retardant ring olefine polymer composition
Inventor: SAKAI HIDEKI
IPC: C08L23/08
Filed: 1989-12-21
Granted: 1992-01-06
Abstract: A flame retardant cyclic olefinic polymer composition which comprises     [A] (s) a cyclic olefinic random copolymer formed from an ethylenic component and a cyclic olefinic component represented by the following general formula [I], or (b) a ring-opened polymer of a cyclic olefinic component represented by the folowing general formula [I] or a hydrogenated derivative of the polymer which copolymer or polymer has a limiting viscosity [ eta ] of 0.01 to 10 dl/g measured in decalin at 135  DEG C and a softening temperature (TMA) of 70  DEG C or more; <CHEM>     [B] a halogen type flame retardant,   [C] an antimony type flame retardant, and   [D] polytetrafluoroethylene, and if [E] at least one copolymer selected from an amorphous or low crystalline alpha-olefinic copolymer which is formed from at least two alpha-olefins, and an amorphous or low crystalline copolymer which contains as one of monomer constituents styrene or its derivative and has at least one of glass transition temperatures of 0  DEG C or less, and if desired   [F] magnesium hydroxide. o
Patent KR-920004669-B1 (KR)
Inventor: SANTHANAM ANAKKAVUR T
IPC: C22C29/02
Filed: 1988-08-19
Granted: 1992-06-13
Abstract: 내용 없음.
Patent KR-960001589-B1 (KR)
Title: Continuous induction welding device
Inventor: GART HOLPSTRAM
IPC: B29C65/02
Filed: 1990-02-27
Granted: 1996-02-02
Abstract: The invention relates to an arrangement for the continuous carrying out by means of induction heat of a continuous weld along a moving web of laminated packing material (8). The arrangement comprises two similar elongated metal plates (1) with two slots (2, 12). The metal plates (1) are arranged at some distance from one another and are connected electrically to one another and to an a.c. source (10). The laminated packing material (8) which is to be welded together is advanced between the two plates (1). Within the plates (1) pressure rollers (6) are arranged in a recess (5).
Patent KR-920007305-B1 (KR)
Title: Sheet supply roller release apparatus for copying machine
Inventor: AN BYONG-SON
IPC: G03G15/00
Filed: 1990-05-23
Granted: 1992-08-29
Abstract: The releasing device for paper feeding roller comprises press member (2a)  formed  with  semicircular  groove  (2b)   downward, extension frame (2) formed with shaft  hole  (2c),  paper  feeding roller (9) supported by compression spring (8), spring stopper (5) mounted on a side of actuator (3) the actuator (3) actuated by the movable bar (4) mounted on the  sprint  stopper  and  spring.  The press member (2a) with a groove (2b) is positioned  on  the  shaft (11) of paper feeding roller (9) supported by  compression  spring (8) and is pressed downward for feeding roller (9), and the  paper caught by a roller (10) is released by the  space  formed  between the upper feeding roller (10) and the lower feeding roller (9).
Patent KR-100206611-B1 (KR)
Title: Circuit configuration for identification of integrated semiconductor circuit
Inventor: WOLFGANG PRIBYL
IPC: H01L21/02
Filed: 1990-06-29
Granted: 1999-07-01
Abstract: Parallel inputs I1...In of a parallel/serial shift register SR are connected to programmable elements F1...Fn. The integrated semiconductor circuit can be identified at the data output DO of the parallel/serial shift register SR by the code which the programmable elements F1...Fn represent. <IMAGE>
Patent KR-960002533-B1 (KR)
Title: Polyphenylene sulfide resin composition
Inventor: MIN KYUNG-SUN
IPC: C08L81/04
Filed: 1990-06-30
Granted: 1996-02-22
Abstract: Novel hardening agent of formula (I) for polyphenylene sulfide resin composition is prepd. by : dropping the cpd. of formula (II) into p-hydroxy benzaldehyde to prepare an intermediate of formula (III); mixing that with NaOH in dimethylsulfoxide (DMSO); then mixing and reacting propagyl bromide with the solution. In the formula, X is O, CH2, S, -(CH3)C(CH3)-, NH or SO2. The obtd. hardening agent improves heat resistance to be used in polyphenylene sulfide composite.
Patent KR-940007214-B1 (KR)
Inventor: KAWAICHI KATSUMI
IPC: C09K17/10
Filed: 1990-10-13
Granted: 1994-08-10
Abstract: 내용 없음.
Patent KR-0168427-B1 (KR)
Inventor: SCHMIDT GUENTHER DR
IPC: A61K31/395
Filed: 1990-11-16
Granted: 1999-01-15
Abstract: 하기 일반식(Ⅰ)의 신규한 5,11-디하이드로-6H-디피리도[3,2-b:2',3'-e][1,4]디아제핀 및 이의 약제학적으로 허용되는 산부가염, 이의 제조방법, HIV 감염의 예방 또는 치료를 위한 이의 용도 및 이들 화합물을 함유하는 약제학적 조성물이 기술되어 있다.
Patent KR-930009576-B1 (KR)
Title: Layout of bit-line in the semiconductor memory device
Inventor: AN JI-HONG
IPC: H01L27/04
Filed: 1990-12-21
Granted: 1993-10-07
Abstract: forming  a first contact  hole;  depositing  a  polysilicon  layer  thereon; forming a second contact hole; doping  the  polysilicon  layer  to form a first conductive  layer;  depositing  a  second  conductive layer; stacking a third  conductive  layer  thereon;  stacking  an insulating layer thereon; patterning the  stacked  materials;  and forming an insulating layer on  the  sidewalls  of  the  patterned structure, thereby preventing a parasitic capacitor from occurring and the destruction of electrical characteristic  of  the  device, and increasing the operation speed.
Patent KR-930011056-B1 (KR)
Title: Methoid of manufacturing cap poliside bit line
Inventor: YANG HUI-SHIK
Filed: 1990-12-27
Granted: 1993-11-20
Abstract: A  manufacturing  method  of  a  cap  polycide  bit  line  is characterized by (a) forming a transistor, a LTO  (2),  a  contact window and a polysilicon (3) on the substrate (1),  (b)  doping  a dopent on the polysilicon, and forming a  bit  line,  (c)  forming TiSix silicide by reacting Ti with silicon under N2 atmosphere  at 500-700 deg.C for 30-60 sec., (d) immersing the substrate  into  a soln. of NH4OH  and  H2O2  for  3-7  min.  to  remain  the  formed silicide, and (e) forming an IMD (7) by reacting the TiSix at  800 deg.C or more for 30-60 sec.. The method prevents  a  peeling  and notching phenomena, and lowers a parasitic resistance  of  contact surface between diffusion region and contack plug.
Patent KR-0158192-B1 (KR)
Inventor: FRITZ PESENDORFER
IPC: A24C5/35
Filed: 1990-03-01
Granted: 1998-12-01
Abstract: 원통형 바디들을 변형 가능하게 수집하고, 이들을 포장시키는 장치 및 방법으로서, 평행 인접한 송급 더미로 위치되어 서로 포개져 서로 인접한 적어도 일렬로 평행하게 배치된 바디들로 정렬되어 있는 바디들을 진동시키는 것을 포함하며, 상기 열은 바디들로 무한 충전된 평행육면형 매거진(6)으로 로드되어 매거진 방출력(E)에 이송되고 바디가 그 안으로 이송되는 유사한 이송 매거진(12)아래에 놓여지고, 다음에 중력에 의해 바디가 그안으로 유입되는 상기 바디용 수용 공간(14)위로 횡방향 이동되며, 예정된 그룹으로 수집되는 바디들이 컵 콘베이어의 컵들로 동시에 이송되는 것으로부터 두 개 이상의 인접 방출기구(17)구역으로 하향 운동하는 스트림내로 분할된다.
Patent KR-940008166-B1 (KR)
Inventor: NAKAMURA SHIKETAKA
IPC: F04B1/24
Filed: 1991-03-05
Granted: 1994-09-07
Abstract: 내용 없음.
Patent KR-960005892-B1 (KR)
Inventor: OUCHI GAZUNORI
IPC: G11C16/02
Filed: 1991-03-30
Granted: 1996-05-03
Abstract: 내용 없음.
Patent KR-940008356-B1 (KR)
Inventor: MORI HISATOSHI
IPC: H01L21/336
Filed: 1991-04-25
Granted: 1994-09-12
Abstract: 내용 없음.
Patent KR-940002028-B1 (KR)
Title: Lightweight concrete
Inventor: PARK HYO-SON
IPC: C04B22/12
Filed: 1991-05-25
Granted: 1994-03-14
Abstract: The light weight concrete having a good color tone is prepared by mixing the main aggregate composed of 15-30 vol% clay and 30-60 vol% Masa earth with proper quantities of water and cement, adding 1.5-4.5 vol% a soil stabilizer to the above mixture in order to make mortar, curing this mortar containing the bubbles foamed by 0.1-0.5 vol% a protein foaming agent.