baber/WOPTO huggingface dataset:
Patent KR-840001002-B1 (KR)
Title: Process for preparing solide preparation comprising combamamideor mecobalamin
Inventor: IWAGIRI SUSUMU
IPC: A61K31/13
Filed: 1980-10-31
Granted: 1984-07-19
Abstract: Cobamamide or mecobalamin, used for treating pernicious anemia, are stabilized in solid prepns. against light by adding dyes such a New Coccine. Thus, mecobalamine 0.1g, New Coccine 0.1g, and mannitol 98g were mixed and the mixt. was then kneaded with 20 mL of 10% EtOH  soln. of hydroxypropyl cellulose. This was then granulated and dried for 10 hrs. The granular product was then dressed to give a product in the grain range of 1410-500μ.
Patent KR-840001515-B1 (KR)
Title: Process for preparing the vaccine
Inventor: GOUGH PATRICIA M
IPC: A61K39/225
Filed: 1980-11-10
Granted: 1984-09-29
Abstract: A vaccine, useful for protecting swine against transmissible gastroenteritis (TGE) infection, contains an antigen factor, sp. antigenic protein(SPA), which is at least partially lost in the recovery of TGE virus for use in vaccines. SPA is sol. in H20, has a buoyant d. of 1.02-1.03g/mL, and has a charge-neutralized electrophoretic mobility (Rf) of 1.84 relative to human serum albumin. It is admixed with a carrier or adjuvant suitable for veterinary adminstration. The SPA immmunogen is prepd. from TGE virus in a culture medium, subjected to centrifugation, the virus pptd. from the supernatant, the ppt. collected by centrifugation and dispersed in Eaglis min. essential medium, and the dispersion is subjected to rate-zonal centrifugation.
Patent KR-880001905-B1 (KR)
Title: Electrical resistance welder
Inventor: MITSUDANI HIROSHI
IPC: B23K11/24
Filed: 1981-09-11
Granted: 1988-09-30
Abstract: The welder includes a bridge type inverter comprised transistors (1- 4) and diodes (13-16), timer circuits (11,12) drived by a start signal for conducting welding current, a flip-flop circuit (10) making a reverse turn when receiving triger signal, and gate circuits (8,9) receiving outputs of the timer and flip-flop circuit.  The welder conducts the welding current of which polarity is changed alternately whose duration is determined by the timer circuit when receiving the start signal.
Patent KR-820000740-B1 (KR)
Title: Process for preaprign penicillanic acid 1,1-dioxides
Inventor: BASS W
IPC: C07D499/32
Filed: 1981-11-10
Granted: 1982-05-03
Abstract: Title compds. I (R1 = H, ester forming residue, carboxyl protective group) were prepd. by the reaction of 1,1-dioxide penicillanate and 3-phthalidyl chloride or -bromide, 4-crotonolacton-4-yl chloride or -bromide, -butyrolacton-4-yl chloride or -bromide, compd. II, or III(R3,R4 = H, C1-2 alkyl; R5 = C1-6 alkyl) at 0o-100oC in an inactive solvent.  Thus, a mixt. of glacial acetic acid, KMnO4, H2O, and sodium salt of penicillanic acid was stirred at 5oC for 20 min and sodium bi sulfite added until disappearance of KMnO4 color, which was filtrated and adjusted to pH 1.7, extracted, and dried to give I (yield 78%).
Patent KR-840001589-B1 (KR)
Title: The printing method of metal plate
Inventor: SHIN KWAN-IL
IPC: B41M1/28
Filed: 1982-07-27
Granted: 1984-10-11
Abstract: The printing process comprises mixing an ethyl acetate soln. (1) (in which 80-90% vinylchloride resin and 10-20% vinylacetate resin are solved) and an ethyl acetate soln. (2), (in which the same amt. of nitrile rubber is solved), where the mixing ratio of (2) to (1) is 0.5-2; diluting the mixed soln. with a plasticizer-solved diluent; coating it on the metal plate surface; drying the coated plate; placing ordinary transfer paper on the coated surface; pressing it while heating; and removing the ground remainder of the transfer paper. Five to ten wt.% phenolic resin is involved in the metal surface-treating compsn.
Patent KR-870000205-B1 (KR)
Title: Process for preparing phenoxy alkanedione derivatives
Inventor: ANDERSON RICHARD J
IPC: C07D213/64
Filed: 1983-07-29
Granted: 1987-02-16
Abstract: Phenoxy alkanediones (I; R1=H or lower alkyl; R2=lower alkyl; W=O,S or NH; Q=O or S; Y and Z are H, lower alkyl, lower haloalkoxy, haloalkyl, halogen, NO2 or CN; X' and X" are H lower haloalkyl, lower alkoxy, halogen or NO2, provided that X' and X" are not both CF3, OMe or NO2) are prepd. (I) are herbicides with pre-and/or post-emergence activity, esp. against grasses.
Patent KR-850001359-B1 (KR)
Title: Repeating circuit of cassette tape recorder
Inventor: LEE SOK-U
IPC: G11B15/02
Filed: 1983-11-22
Granted: 1985-09-21
Abstract: A repeating reproduction circuit is used in a compact cassette tape recorder. The circuit is capable of carrying out repeating reproduction several times or continuously on one side of the tape. The device comprises (a) a repeating reproduction element (100) that has an AND gate (A1-A4), and diode (D1, D3, D4); (b) a command element (200), which has RS flip-flops (FF4-FF6), an OR gate (G2) and an inverter (I6); (c) a comparating control element (300) having RS flip-flops (FF1-FF3), AND gates (A5-A9), and inverters (I1-I2), and an OR gate (G1).
Patent KR-850001048-B1 (KR)
Title: Water-resistant slide fastener and method of manufacturing the same
Inventor: CHUBOGIWA YOSHITOKI
IPC: A44B19/32
Filed: 1983-12-10
Granted: 1985-07-25
Abstract: A slide fastener comprises water-resistant and transverselystretchable stringer tapes having reinforced edge margins, with coupling teeth rows engageable across a central axis of the fastener. When the teeth are uncoupled, the edge margins project towards each other beyond the central axis, and each margin includes an elastically deformable core tape and pref. projects as far as the teeth tips. Pref., the stringer tapes carry soft sealing layers of synthetic rubber or synthetic resin, which enwrap the reinforced edge margins.
Patent KR-870000986-B1 (KR)
Title: Control apparatus of cooling tower water temperature
Inventor: KAYA AZUMI
IPC: F28C1/00
Filed: 1984-01-27
Granted: 1987-05-16
Abstract: The fan speed is increased whenever the cooling-tower temp. exceeds the web-bulb temp. of the outside air by more than 5.5 deg. C. Outside air temp. measurements are delivered to moisture ratio and enthalpy logic modules and outside relative humidity measurements to the moisture ratio logic only. The logic output indicating the wet- bulb temp. of the outside air is compared with output from a cooling- tower water temp. sensor. The result of the comparison is applied to a function generator producing a fan speed control signal.
Patent KR-860001328-B1 (KR)
Title: Telephone-number recorder
Inventor: KIM YONG-SANG
IPC: H04M1/21
Filed: 1984-08-29
Granted: 1986-09-13
Abstract: A phone-number index for selecting a desired number by using a sliding picker comprises a stack for storing index papers, a cover, and a picker. The stock comprises a ring(11) holding index papers(22) , and a ring spring(15). The cover comprises a fixed protrusion(4), a ring groove(16) latching the ring spring, a pressing pad(7) for opening and shutting the cover, a cover lock (10), a cover latch hole(9), and a spring for the pressing pad. The picker comprises an upper part(23) having a fixed protrusion fixing with a lower part(24) and a guide hole(28), and a lower part having fixed protrusion for searching for the desired index paper, and a spring(26).
Patent KR-890002122-B1 (KR)
Title: Compressor control unit for automobile air conditioner
Inventor: TAKAHASHI TADAHIRO
IPC: G05D23/19
Filed: 1985-03-15
Granted: 1989-06-20
Abstract: The unit comprises an economizer switch (5) for selecting an ordinary driving mode or an economical driving mode.  An electromagnetic clutch (14) connects a driving shaft to an engine for travel.  A control signal is fed to the discharge adjuster (17) to enable the conpressor to discharge a lare amount of refrigerant when signals from both the economizer switch and the acceleration detector (10) are received by the control circuit (16).  Another control signal from the control circuit is fed to the discharge adjuster to enable the compressor to discharge a small amount of the refrigerant when the ordinary driving mode is selected by the economizer switch.  When economical driving mode is selected the acceleration detector detects no acceleration.
Patent KR-900000410-B1 (KR)
Title: Handle post mounting device for tractor
Inventor: TAMURA KAZUHISA
IPC: B62D1/16
Filed: 1985-04-03
Granted: 1990-01-30
Abstract: The mounting of the tractor steering column has a centrally located plate.  The middle section of the plate is provided with a rearward pointing extension and connects with the front part of the floor by flanges and elastic sealing strips.  The flanges on the plate are arranged to allow connection of the plate to parts of the frame and to the engine cover.  The design prevents flow of hot air from the engine reaching via steering column encasing the area occupied by the driver.
Patent KR-890000524-B1 (KR)
Title: Process for preparing an aqueous disperation of a perfluro compound
Inventor: MCCORMICK WILLIAM
IPC: A61K31/025
Filed: 1985-04-15
Granted: 1989-03-20
Abstract: Title dispersions, useful as gas-transfer and drug-delivery agents, were prepd..  Thus, a dispersion contg. a 80:20 mixt. of perfluoro- 1,3-dimethyl-adamantane and perfluorotrimethylbiscyclo [3,3,1  nonane and Phronic F-68 (polyoxyethylene-polyoxypropylene copolymer) was centrifuged at 12500 rpm.  The supernatant was discarded and the gel phase redispersed in water.
Patent KR-890004163-B1 (KR)
Title: Coating and polishing apparatus for rolling stock frame
Inventor: LEE YONG-WOONG
IPC: B05C1/00
Filed: 1985-08-20
Granted: 1989-10-23
Abstract: The coating & polishing appts. for the outer surface of the rolling stock frame in a railway car comprises a carriage means (4) moving on a rail (5) and a frame (1) comprising a crossbeam (2) and a pair of vertical guide beams (3).  The crossbeam comprises a main beam (2') integrally fixed to a carriage frame (4') and a pair of extensible beams (2") to which the vertical guide beams are fixed at their ends.  A movable bar (10) having racks (11) vertically climbs up and down within the guide beams.  At the lower end of the movable bar a spray gun (47) or a polishing device (21) may be assembled for the purpose of the proper working.  An arch-shaped spray pipe is prepared under the main beam to spray water when polishing work.
Patent KR-890004265-B1 (KR)
Title: Magnetic head control system in magnetic disk device of index servo system
Inventor: HADDORI MASAGATSU
IPC: G11B5/55
Filed: 1985-11-15
Granted: 1989-10-28
Abstract: The circuit for determining the magnetic head position quickly and reducing the position determining time comprises a driving signal generator for providing step pulse to a stepping motor (14) according to the current of the position detecting coil and the position value of the head, a memory (23) for storing the current value of the position detecting coil, a first driving control circuit for driving the motor with the step pulse in servo not-used mode, and a second driving control circuit for driving the motor with the step pulse in servo used mode.
Patent KR-920010071-B1 (KR)
Inventor: GREEN DAVID E
IPC: C07D239/96
Filed: 1985-11-23
Granted: 1992-11-13
Abstract: 내용 없음.
Patent KR-940004749-B1 (KR)
Inventor: DANANBERG HOWARD J
IPC: A43B13/14
Filed: 1985-03-18
Granted: 1994-05-28
Abstract: 내용 없음.
Patent KR-890004804-B1 (KR)
Title: Method for processing of fruit alcohol
Inventor: LIM SU-BOK
IPC: C12G3/00
Filed: 1986-04-07
Granted: 1989-11-27
Abstract: The method for brewing fruit wine with the addition of dolomite comprises: (a) pressing the juice from 10kg of apples and transfering the juice to the fermenter; (b) adding 20g saccharomyces maliarisler strain and 260g of dolomite(18m/m mesh) to the fermenter containing the juice; (c) fermenting the above mixture at 27≰C for 1 week and at 9≰C for 1 month.  In the above process, dolomite consists of 21% of Mg, 35% of Ca, and 344% of CO.
Patent KR-940001203-B1 (KR)
Title: Manipulator gear head
Inventor: ZIMMER ERNST
IPC: B25J17/02
Filed: 1986-07-19
Granted: 1994-02-17
Abstract: The invention is a further development of the gear-head unit for a manipulator described in German Open Patent Application No. 34 28 748. In order to increase the radius of action and range of applicability of the gear-head unit a structural arrangement with three concentric drive axes and four allowed rotational motions of front, intermediate and rear segments of the manipulator is set forth. These front, intermediate and rear segments are pivotally mounted together about first and second inclined pivot axes which are inclined to each other and to the main drive shaft axis. Along these inclined pivot axes two hollow drive shafts connected with each other extend which are supported by reduction gears in the front and/or intermediate segments. Because of that simultaneous opposing rotational motions of the intermediate and rear segments can be obtained from a single drive motor. In the rear segment an output drive shaft attached to a front plate for a tool holder is rotatably mounted which is driven by coupled intermediate drive shafts guided through the hollow drive shafts.
Patent KR-940005996-B1 (KR)
Inventor: YUKITOMO KAZUO
IPC: B60Q1/40
Filed: 1986-07-24
Granted: 1994-06-30
Abstract: 내용 없음.
Patent KR-900000211-B1 (KR)
Title: Emulsion compositions for administration of sparingly water soluble ionizable hydrophobic druzo
Inventor: DESAI NARENDRA R
IPC: A61K9/107
Filed: 1986-09-10
Granted: 1990-01-23
Abstract: An emulsion compsn. for an intravenous, intramuscular or intraarticular delivery of hydrophobic drugs comprises (a) a hydrophobic drug, (b) a pharmaceutically acceptable vehicle consisting of a natural vegetable oil or a semisynthetic mono-, dior tri-glyceride, (c) a surfactant or auxiliary emulsifier, (d) an ion- pair former consisting of C6-20 unsatd. aliphatic or aromatic acid, and (e) a water.  The compsn. quickly releases the drugs but avoids a local precipitation of the drugs without the need for modifying their structure.
Patent KR-890004070-B1 (KR)
Title: Method for treating surface of polyolefin molding
Inventor: OGIS YASHIKO
IPC: B01J19/08
Filed: 1986-11-13
Granted: 1989-10-18
Abstract: The 3-dimensional polyolefin molding is cleaned with an organic solvent and then treated with a corona discharge having a spherical, rod- or plate-shaped discharge component.  Pref. the organic solvent has the same solubility parameter of the polyolefin.  The treated surface adheres well to printing inks, adhesives and other polymers.
Patent KR-890004887-B1 (KR)
Title: Data transmission system with link access protocol controller and modem
Inventor: KIM YONG-KUN
IPC: H04L27/00
Filed: 1986-12-02
Granted: 1989-11-30
Abstract: The controller interposes between an ordinary modem and a CPU to reduce the load of the CPU.  The CPU (1) enables three-state buffers (12,13) via PIO (11) in order to communicate the other terminals in the command mode.  A bult-in controller (6) produces dialing pulses and detects carrier signals to inform the CPU of the time to communicate.  The CPU then disables buffers (12,13) and enables three state buffers (7,8) connected to the controller (6) and the buffer (10) connected to the modem (9) in the communication mode.
Patent KR-950013907-B1 (KR)
Inventor: NEGISHI KIYOSHI
IPC: H01S5/042
Filed: 1986-12-24
Granted: 1995-11-17
Abstract: 내용 없음.
Patent KR-910001504-B1 (KR)
Inventor: SINGICHI NAGATA
IPC: G03F7/20
Filed: 1987-06-12
Granted: 1991-03-09
Abstract: 내용 없음.
Patent KR-910003795-B1 (KR)
Inventor: AOKI KATSO
IPC: G11B5/17
Filed: 1987-06-29
Granted: 1991-06-12
Abstract: 내용 없음.
Patent KR-950004935-B1 (KR)
Inventor: ASAI MAKOTO
IPC: H01R13/03
Filed: 1987-08-04
Granted: 1995-05-16
Abstract: 내용 없음.
Patent KR-930009248-B1 (KR)
Inventor: MERVILL DUANE F
IPC: C04B41/49
Filed: 1987-08-29
Granted: 1993-09-24
Abstract: 내용 없음.
Patent KR-950009750-B1 (KR)
Inventor: GALLENKAMP BERND
IPC: C07D213/61
Filed: 1987-09-03
Granted: 1995-08-28
Abstract: 내용 없음.
Patent KR-900003485-B1 (KR)
Title: Optical device of projecter
Inventor: PARK HONG-CHUL
IPC: H04N5/74
Filed: 1987-10-31
Granted: 1990-05-19
Abstract: The apparatus includes a field lens (15) used in place of fresnel lens so that a large film and LCD pannel can be used, a rotating structure (20) including two bevel gears, a crank axle, a bolster, a motor for cooling and rotating lens, and belt and belt pulley for rotating field lens minutely so as to remove Moire Fringes, and a filter (14) for absorbing heat radiated fron a light source.
Patent KR-900008161-B1 (KR)
Title: Tone control device
Inventor: IHIGAWA SEIICHI
IPC: H03H17/06
Filed: 1988-03-21
Granted: 1990-11-03
Abstract: Group delay characteristic data for a loudspeaker are entered from, a phase data input section (12). A phase operational section (13) computes a desired phase/frequency characteristic based upon data suppled from the input section. The characteristic is obtained by an integration section (303). A transfer function operation section (14) computes a transfer function corresp. to the phase/ frequency characteristic. An inverse fourier transform section (15) derives the transform of the transfer Function to obtain an impulse response characteristic corresp. to the transfer function. A coefft. setting section (16) sets filter coeffts. into a FIR filter respectively defined by the impulse response produced.
Patent KR-930005544-B1 (KR)
Inventor: NAKANISHI YUTAKA
IPC: F23Q25/00
Filed: 1988-04-27
Granted: 1993-06-23
Abstract: 내용 없음.
Patent KR-900008943-B1 (KR)
Inventor: KIM SANG-NAM
IPC: A41D13/00
Filed: 1988-05-09
Granted: 1990-12-15
Abstract: 내용 없음.
Patent KR-910001962-B1 (KR)
Title: Brushless motor
Inventor: CHO DU-MAN
IPC: H02K29/00
Filed: 1988-05-31
Granted: 1991-03-30
Abstract: Air gap between the main field pole  (1)  and  rotor  (2)  is constructed so as to  vary  in  cylindrical  fashion.  And  airgap between auxiliary pole (9) and rotor is longer  than  the  minimum main air gap length. These construction makes  the  motor  operate with only one wall device. Flux  path  is  completed  through  the cylindrical type magnet (3) and the  yoke  (4).  The  Hall  sensor (13), which is placed on the center of the  auxiliary  pole  face, detects the rotor position and makes the current command signal to the armature coils (l1-l4).
Patent KR-910008167-B1 (KR)
Inventor: ESCARAVAGE GERARD
IPC: B60R22/20
Filed: 1988-06-17
Granted: 1991-10-10
Abstract: 내용 없음.
Patent KR-910008808-B1 (KR)
Inventor: SHENTOKU HITESHI
IPC: G07D9/06
Filed: 1988-06-29
Granted: 1991-10-21
Abstract: 내용 없음.
Patent KR-910005234-B1 (KR)
Title: Process of preparation for coagulating particle of polymeric latex and apparatus thereof
Inventor: PARK SANG-HUI
IPC: C08J3/02
Filed: 1988-08-26
Granted: 1991-07-24
Abstract: The coagulating particle of polymeric latex is prepd. by  (a) feeding ang spraying the coagulating gas or spraying  material  of below the coagulating particle forming temp. into the  coagulating bath having the contour line and coated by glass, (b) feeding  and spraying the polymeric latex and the  hydrophobic  solvent  having more than sp. gr. to water, (c) putting the hot air from  top  nor bottom of the bath to make the turbulence in  order  to  coagulate fully the polymeric  latex  by  staying  for  morer  3  sec.,  (d) collecting the coagulated particle, (e) coagulating fully  in  the bath of higher temp. of particle forming temp., and recovering  by centrifulgal seperator, washing and drying.
Patent KR-960006363-B1 (KR)
Inventor: SULFASTEDE LOUIS E
IPC: F24F11/02
Filed: 1988-09-08
Granted: 1996-05-15
Abstract: 내용 없음.
Patent KR-970004356-B1 (KR)
Inventor: PANSON ARMAND J
IPC: G21C19/307
Filed: 1988-09-10
Granted: 1997-03-27
Abstract: 없음
Patent KR-950004495-B1 (KR)
Inventor: OLSON LYNNE A
IPC: D06P1/613
Filed: 1988-09-15
Granted: 1995-05-01
Abstract: 내용 없음.
Patent KR-910008993-B1 (KR)
Title: Press control sequency using programmable array logic
Inventor: RHO TAE-JUNG
IPC: B30B15/26
Filed: 1988-10-20
Granted: 1991-10-26
Abstract: The programmable array  logics  (PAL)  are  used  to  form  a sequence control circuit.  Output  signals  of  the  PAL  internal circuit are input to an input unit of the PAL IC according to  the switch action of the control sequence  circuit.  The  signals  are transmitted to drive PAL ICs (16H2, 14H4-1,  14H4-2,  14H4-4)  and when the input  condition  is  satisfied  the  drive  signals  are transmitted to output units. The output control  signals  are  fed back to a feed back unit according to the condition of the  output units. A cadmium sulfide sensor (cds) is connected to a  collector of a transistor (TR2) so that when the power  is  applied  to  the collector, a Ne on lamp illuminates, the sensor detects the light, and then  the  detection  signal  is  transmitted  to  the  output terminal.
Patent KR-0168831-B1 (KR)
Inventor: HIDEKI USUKI
IPC: G11C11/34
Filed: 1988-10-31
Granted: 1999-02-01
Abstract: 스태틱 랜덤 액세스 메모리(SRAM)는, 비트 라인 끝에 있는 가변 저항 역할을 하는 한 쌍의 p채널 금속산화 반도체(PMOS) 트랜지스터와, 상기 PMOS 트랜지스터가 판독 동안에는  저 임피던스 레벨로 제어하고 기록 동안에는 중간 임피던스 레벨로 제어하여 급격한 직류 전류가 흐르지 않게 하고 상기 비트라인에서 전압이 강하되지 않도록 하는 제어회로를 포함한다. 상기 가변 저항기 장치는, 상기 제어회로의 금속 절연체 반도체(MIS)트랜지스터를 갖는 전류 미러 회로를 구성하여, 오차가 발생하지 않는 안정한 제어를 할 수 있게 한다.
Patent KR-920006986-B1 (KR)
Inventor: SUKICHI ARAKI
IPC: G03G21/16
Filed: 1988-10-29
Granted: 1992-08-24
Abstract: 내용 없음.
Patent KR-920002075-B1 (KR)
Inventor: FUJIMOTO HIROAKI
IPC: H01L21/60
Filed: 1988-12-16
Granted: 1992-03-10
Abstract: 내용 없음.
Patent KR-910005306-B1 (KR)
Title: High density memory parallel land circuit
Inventor: CHOI YUN-HO
IPC: G11C29/38
Filed: 1988-12-31
Granted: 1991-07-24
Abstract: The paralled lead circuit for reducing the  testing  time  of high density memory device comprises data  line  sense  amplifiers (SA11- SA14)(SA21-SA24)(SA31-SA34) (SA41-SA44) for amplifying  each bits from the corresponding output data lines (L1)-(L4)  connected to  the  cell  array  block  (CA1)-(CA2);  data  line  comparators (LCM1)- (LCM2) for mutually comparing the output signals  from  the sense amplifiers in the unit of cell array block and generating  a first comparing data to transmit  the  comparing  signal  to  data buses (DB1)-(DB4); and output buffers (OB1)-(OB4)  for  amplifying the test  output  signal   from   the   data   line   comparators (LCM1)- (LCM4).
Patent KR-910007119-B1 (KR)
Title: Oxide piezo-electric materials and its manufacturing method
Inventor: JOO UNG-GIL
IPC: H01L41/16
Filed: 1989-01-24
Granted: 1991-09-18
Abstract: An  oxide  piezoelectric  material  composed  of  (Pb1-xCax) [(Li1/4 Fe1/4 W1/2) 0.02Ti0.98  O3 + Y mol% MnO [= 0.15-0.25;  y= 1-2  is produced by (a) mixing a raw oxide powder  of  PbO,  TiO2, CaCO3, WO3, LiCO3 and Fe2O3 by the ball-mill, (b) firing the mixt. at 850 deg.C and 950 deg.C for 4hr, (c) pressure-molding the fired powder and a  binder  at  1  ton/cm2,  (d)  calcining  the  molded material at 1060-1100 deg.C for 1hr, (e) forming an  electrode  on the both sides of the calcined material, and  (f)  polarizing  it. The piezoelectric  material  is  useful as a material  for piezoelectric devices in the high frequency region.
Patent KR-930008756-B1 (KR)
Inventor: OKA KOICHIRO
IPC: C09J163/00
Filed: 1989-02-16
Granted: 1993-09-13
Abstract: 내용 없음.
Patent KR-910009497-B1 (KR)
Title: Making process for sleeve roll of all continuous casting machine
Inventor: CHUNG SIN-KUM
IPC: C22C38/46
Filed: 1989-02-21
Granted: 1991-11-19
Abstract: A sleeve roll of Al continuous  machine  is  manufactured  by forging the compsn.  of  0.50-0.60  wt.%  C,  0.10-0.35  wt.%  Si, 0.40-0.80 wt.% Mn, 0.02 wt.% or less  S,  0.02  wt.%  or  less  P, 0.80-1.50 wt.% Cr,  0.40-0.80  wt.%  Mo,  0.40-0.80  wt.%  Ni  and 0.10-0.30 wt.% V into a sleeve roll, normalizing the  sleeve  roll at 800-950 deg.C, quenching, and tempering at 500-650  deg.C.  The process has the casting speed of 40 inch/min. and make 5000  hours or more life time of the roll. The sleeve roll  has  an  excellent heat- conductivity, impact-resistance and yield-strength.
Patent KR-920007328-B1 (KR)
Inventor: NISHIMURA KATSUHIKO
IPC: G03G15/09
Filed: 1989-04-27
Granted: 1992-08-31
Abstract: 내용 없음.