baber/WOPTO huggingface dataset:
Patent KR-800000861-B1 (KR)
Title: Process for preparing substitute indanl-5-carboxylic acid
Inventor: PAYNE TREVOR GLYN
Filed: 1979-08-24
Granted: 1980-08-28
Abstract: Title compds. (I; R1 = lower alky1; R2 = R3 = R4 = lower alkyl or hydrogen; R5 = hydrogen, chloride or lower alkyl; R6 = R7 = hydrogen) were prepd. by substituting CN group with COOR3 of compd. II. Thus, a soln. of 26.7 g potassium hydroxide and 45 cc h2O was added to 12.8 g 2-ethy1-5-indane- acetonitrile in 350 cc ethanol, and refluxed for 20 hr to give 2-ethy1-5-indaneacetic acid(m.p. 44-46≰C)
Patent KR-840000225-B1 (KR)
Title: Conductive molding composition
Inventor: MARTIN CARL J
IPC: G11B11/06
Filed: 1980-01-15
Granted: 1984-02-29
Abstract: Conductive molding compsn. comprises (a) finely divided conductive black particles to give bulk resistivity < 500 ohmcm at 900MHz; (b) 1.5-4wt.% PVC resin stabilizer; (c) 1-3 wt.% PVC resin lubricants; (d) <=10 wt.% plasticizer and processing aids; and (e) PVC resin with Tg>=60≰C. Proviso is that <=5 wt.% liq. additives compatible with the resin are present and that (a), (b), (c) and (d) are uniformly dispersed in the resin. C black pref. has a apparent bulk density-150 g/l. Compsn. is used to mfr. video discs of high dimensional stability.
Patent KR-830001817-B1 (KR)
Title: 타이프ⅱ 인터페론의 제조방법
IPC: A61K39/00
Filed: 1980-01-16
Granted: 1983-09-12
Abstract: 내용 없음.
Patent KR-850001848-B1 (KR)
Title: Device for feeding with elongate lining material aninstallation for lining a tubular member
Inventor: MARMORAT ANDRE
IPC: B23K37/00
Filed: 1980-05-14
Granted: 1985-12-28
Abstract: A device for feeding elongated lining material(4) into a tubular member(1) has a dia. of 650-1000mm and is mounted for rotation about its axis. A horizontal arm(6) is mounted for vertical and horizontal translatory motion and one end, which also carries a welding head(2), is introduced into the tubular workpiece. The arm moves the lining material into contact with the tube wall. Additional lining material is provided from a reel(20) rotatably mounted on the arm. This allows the lining material e.g. in ribbon form, to be progressively delivered and welded in place as the tube rotates. This method can be used, e.g., 50 line mild steel pipes with stainless steel.
Patent KR-840002363-B1 (KR)
Title: High voltage breaker
Inventor: MASCHER KARL
IPC: H01H33/16
Filed: 1981-01-14
Granted: 1984-12-21
Abstract: The high voltage circuit breaker uses a closing resistor which, during closing of the breaker, are connected in parallel relationship with the main switching gap of the circuit breaker by means of an auxiliary switching gap. The circuit breaker includes a movable auxiliary contact pin which is spring loaded in the opening direction of the auxiliary switching gap, and a connecting rod which is linked to the auxiliary contact pin and is connected, hinged, to a rotatably supported crank drive of the drive unit of the breaker.
Patent KR-890002527-B1 (KR)
Title: Method and apparatus for costing an inner lining amorphous refractory into a molten metal vessel
Inventor: TAGUCHI KIYOMI
IPC: B22D41/02
Filed: 1982-05-07
Granted: 1989-07-13
Abstract: A cast amorphous refractory lining is formed on a refractory lined vessel by casting the refractory into the space between the inner vessel wall and a lining frame from a rotating chute (10) above a conical distributor (5) located above the lining frame. The inclined surface of the distributor is preferably 45-50 deg. to the horizontal.  A vibration damper may be attached to the lower part of the distributor.  Used for lining ladles or vacuum degassing vessels for molten steel, the refractory is uniformly distributed over the wall of the vessel to form uniform lining with a 20% increase in life.
Patent KR-880001556-B1 (KR)
Title: Television ghost cancellation system with ghost carrier phase
Inventor: HOLMES DAVID D
IPC: H04N5/21
Filed: 1982-06-15
Granted: 1988-08-20
Abstract: The picture carrier extractor produces a first reference signal for the first of the synchronous detectors exhibiting a phase which is aligned with that of the picture carrier of the direct television signal.  The first reference signal is shifted in phase by a controllable phase shifter to develop a second reference signal for the second synchronous detector.  The output of the second synchronous detector is delayed by an amount of time equal to the difference in time between the appearence of the direct signal and a detected ghost signal.  The amplitude and polarity of the delayed signal are adjusted by a control circuit to produce a pseudo-ghost signal.
Patent KR-870000053-B1 (KR)
Title: Continuous casting
Inventor: GANEKO HIDEO
IPC: B22D11/047
Filed: 1982-06-17
Granted: 1987-02-09
Abstract: Horizontal continuous casting operation including a tundish nozzle connecting a tundish to a mold has an electromagnetic field generating coil located in the vicinity of the boundary between the nozzle and the mold. A magnetic flux is generated which has a higher density in a lower portion of the molten metal than in its upper portion. The electromagnetic force generated is oriented toward the center axis of the body of molten metal. Provision of the electromagnetic field prevents a shell of solidified molten metal from adhering to the tundish nozzle and enables a strand to be withdrawn continuously from the mold.
Patent KR-880001166-B1 (KR)
Title: Data modem clock extraction circuit
Inventor: KROMER PHILIP F
IPC: H03L7/00
Filed: 1982-09-21
Granted: 1988-07-02
Abstract: The circuit receives samples of filtered signal from an A/D converter which are applied also to a digital filter and adaptive equaliser. It drives a rate generator producing a sampling-rate clock signal and other at a lower symbol frequency.  A limiting periodic filter incorporates a (24) sample delay and a subtractor which feeds the differences via a squarer to a sampling filter introducing several delays equal to the reciprocal of the symbol interval.  Some squared and delayed sample with different polarities are added and the sum is low pass filtered.  The resulting error signal can be used in a phase-locked loop controlling the sampling and symbol clocking.
Patent KR-910007426-B1 (KR)
Inventor: FILES JAMES H
Filed: 1982-11-01
Granted: 1991-09-26
Abstract: 내용 없음.
Patent KR-870001299-B1 (KR)
Title: Use of polyesthylene power as coating for flat articles and especially for linings as well as polyesthylene power with a share of foreign polymer
Inventor: HEFELE JOSEF
IPC: D06N3/00
Filed: 1983-04-19
Granted: 1987-07-11
Abstract: Coating, esp. by printing with a powder or paste, is carried out with polyethylene powder(I) having a different polymer(II) adhering to the surface of the particles.  Pref. (I) is LDPE powder. (II) is a polyamide, polyurethane, polyester, polyacrylate, polyvinyl halide, polyvinyl acetate, polyether and/or polyalcohol.  A plasticiser(bisphenol A) may be added.  The amt. of (II) is 0.5-25(1- 10) wt.% w.r.t.(I),(II), is applied as a soln. or dispersion and dried.  A double dot coating may be used, the coated(I) providing a barrier layer preventing the top layer flowing into the interfacing. This barrier layer consists of(I) contg. 0.5-10%(II), whilst the top coat consists of a hot melt adhesive powder of copolyamide or copolyester.
Patent KR-850000778-B1 (KR)
Title: Boats
Inventor: KIM DONG-GI
IPC: B63H5/00
Filed: 1983-06-20
Granted: 1985-05-31
Abstract: A water-mill boat has a spherical body (1), which is made from transparent synthetic resin, and moves forward using wingplates that are rotated by an engine or pedal. A circular ring gear (2) is equipped in the boat. The ring gear is rotated by other gears (11,29) so that the spherical body rotates to move forward. The body is transparent so that the crew can observe outside and drive the boat.
Patent KR-850001281-B1 (KR)
Title: Release & alignment mechanism for jet-propelled projectils
Inventor: BAKER ALAN C
IPC: F41F1/00
Filed: 1983-07-19
Granted: 1985-09-04
Abstract: A projectile-release mechanism facilitates launching of a jet- propelled projectile in the form of a spherical spinstabilized missile. The mechanism includes a nozzle extending from the projectile, including a fusible joint that is heated by the high- temp. exhaust gases expelled by the projectile during release. A projectile support includes an open-ended receptacle coaxially placed with the nozzle to receive the nozzle and support the projectile. Forward and rear facing shoulders on the support engage complementary rear and forward facing shoulders on the nozzle to retain the nozzle in the receptacle and permit the fore and aft sections of the nozzle to move out of the open ends of the receptable during fusing and separation of the fusible joint.
Patent KR-890000511-B1 (KR)
Title: High efficiency continuous separation process
Inventor: GERHOLD CLARENCE G
IPC: G01N30/46
Filed: 1983-08-12
Granted: 1989-03-20
Abstract: The method comprises (A) maintaining a uni-direction-fluidsystem through sepg. device having different moving rate by selective staying or acceleration of respective raffinates and extracts in the raw mixt. in each sepg. device contg. inlets and outlets, (B) passing said raw mixt. and displacement fluids thru inlets, (C) setting a component concn. distribution in the above flow system which has contd. zones (I) to (VII), (D) recovering extract stream from outlets out of zone (III) or (II)/(III) or (III)/(IV), and raffinate stream from outlets out of zone (VI) or (V)/(VI) or (VI)/(VII), (E) passing all streams thru corresponding inlets and (F) making inflows and outflows at the same time periodically.
Patent KR-860000579-B1 (KR)
Title: Reaction injection molding method
Inventor: UBE INDUSTRIES LTD
IPC: B29C45/57
Filed: 1983-09-28
Granted: 1986-05-17
Abstract: The mold product is manufd. by reaction injection moding. The starting material is injected in mold by use of inert gas. The mold pressure of initial injection is 1-10 kg/cm2 G and the pressure is increased (less than 50 kg/cm2 G). The starting material is W-lactam or W-lactam and their polymerizing eatalyst. The polymn. of W-lactam is perfomed between m.p. of the W-lactam and formed polyamide. This process is suitable for nylon product, and the products have no pore and their surface is smooth.
Patent KR-910002813-B1 (KR)
Inventor: NISHIOKA YASUHIRO
IPC: G11C11/411
Filed: 1984-03-12
Granted: 1991-05-04
Abstract: 내용 없음.
Patent KR-920002239-B1 (KR)
Inventor: FALENDER JAMES R
IPC: C08G77/00
Filed: 1984-03-14
Granted: 1992-03-20
Abstract: 내용 없음.
Patent KR-870001836-B1 (KR)
Title: Image signal carrying device
Inventor: NAKAGAKI SHINTARO
IPC: H04N9/68
Filed: 1984-06-08
Granted: 1987-10-15
Abstract: The appts. includes a circuit responsive to the luminance part of the video signal for generating a signal indicative of the contour lines of picture images.  A second circuit responsive to the chrominance signal generates a second signal including noise of the chrominance part with a component having an amplitude equal to the peak-to-peak value of the noise of the chrominance signal. A switching circuit is responsive to the two signals and switches between the second signal and a DC voltage in response to the first signal for producing a noise-only signal.
Patent KR-910009818-B1 (KR)
Inventor: OSTERMYER JOHN J
IPC: C07F5/02
Filed: 1984-07-11
Granted: 1991-11-30
Abstract: 내용 없음.
Patent KR-870000198-B1 (KR)
Title: A process for cross-coupling a grignard reagent in the presence of a catalyst
Inventor: DELMAR ERIC G
IPC: C07C/
Filed: 1984-08-18
Granted: 1987-02-16
Abstract: 3-chloro-2-methyl-[1,1'-biphenyl! is prepd. by the reaction of halobenzene with Grignard reagent. The catalyst of this reaction is palladium or nickel(II) acetyl acetonate. 7.58g of bromobenzene and 0.01g of 5% Pd/C is mixed and stirred at 100≰C. 4.48g of 3-chloro-2- methyl-phenylmagnesium chloride in 15ml of furan is added into the reaction mixt. for 15hrs. This reaction mixt. is stirred for 2hrs. to give 3-chloro-2-methyl-[1,1'-biphenyl .
Patent KR-880000205-B1 (KR)
Title: The method and apparatus for culturing animal cell by silicon tube
Inventor: KIM IN-HO
IPC: C12M3/00
Filed: 1984-08-27
Granted: 1988-03-12
Abstract: Device for culturing animal cell was prepd. using a silicone tube, and used for animal cell culture.  The device consist of incubator (8), pump (7), and medium reservoir (6).  In the incubator, silicone tubes(1) are capped at the ends with glass caps (3) having inlet (4) and outlet (5) are fixed and sealed with polyurethane (2).  Thus, the device is installed within a CO2 incubator and supplied with 10% CO2 and air.  A suspn. of baby hamster kidney of 0.9 × 106 cells/ml was inoculated into the silicone tubes (inner φ; 0.132', outer φ; 0.183', length; 19cm) and fixed on the inner surface of the tube.  The medium was recycled into incubator (8) at the flow rate of 60ml/hr. cell growth was monitored by measuring the decrease of substrate.
Patent KR-910004668-B1 (KR)
Inventor: LUGOSI GYORGY
IPC: C07C67/00
Filed: 1984-08-31
Granted: 1991-07-09
Abstract: 내용 없음.
Patent KR-850000390-B1 (KR)
Title: Process for preparing 5-substituted oxazolidines-2,4-diones
Inventor: SCHNUR RODNEY CAUGHREN
IPC: C07C45/51
Filed: 1984-10-29
Granted: 1985-03-25
Abstract: 5-Substd. oxazolidine-2,4-diones of formula (I) or their pharmaceutically acceptable cationic salts are prepd. by oxidizing compds. of formula (II) at 25-100≰C  in an inert solvent, with an excessive amt. of oxidizing agent. In the formulas, R1 is of formula (III); Z' is H or methoxy; Z" is H; Q is S; X≰is H or halo; and X1 is H. (I) are hypoglycaemic agent, used for reducing blood glucose levels in the control of diabetes. Doses are. e.g., 0.10-50, pref. 0.20-20 mg/kg/day.
Patent KR-920007465-B1 (KR)
Inventor: NAKAO SHINROKU
IPC: A47D13/02
Filed: 1984-11-28
Granted: 1992-09-04
Abstract: 내용 없음.
Patent KR-880000433-B1 (KR)
Title: 1,3-disubstituted oxidoles and the process
Inventor: KADIN SAUL BERNARD
IPC: C07D407/06
Filed: 1985-02-05
Granted: 1988-03-24
Abstract: 2-ox-indole compound, formula (I), or its salt is prepared by treating formula (IV) with acylisocyanate, R2-C(=O)-N=C=O, in inert solvent or formula (II) with activated derivative of carboxylic acid R1-C(=O)-OH, in inert solvent.  In formula, X, Y represent a resonable C1-7 alkyl compound or a hetero compound, respectively, or halogen, hydrogen, or a combinded alkyl compound or a hetero compound, together.  And R1, R2 are alkyl group having a resonable substituent, respectively.
Patent KR-870001574-B1 (KR)
Title: Preparation of thermoplastic resin having properties of antishocking
Inventor: KIM JONG-SU
IPC: C08F265/06
Filed: 1985-03-05
Granted: 1987-09-04
Abstract: This invention relates to a thermoplastic resin which has shock absorbing property.  The prepn. process is composed of three steps. In the first step, 1-20 wt. part of monomer, 0.01-0.05 wt. part of emulsifier, 0.001-0.01 wt. part of bridging agent, 0.03-0.5 wt. part of initiator and 40-80 wt. part of ion exchanged water are mixed and reacted to give rubber latex whose particle diameter is 0.05-0.1μ. In the second step, the latex particle diameter is increased to 0.1-1μ.  The third step is control step, in which graft ratio and particle size are controlled.
Patent KR-900005140-B1 (KR)
Title: Liquid oil fuel evaporating device
Inventor: SINOHARA YUKIO
IPC: F23D11/02
Filed: 1985-03-25
Granted: 1990-07-20
Abstract: A closed type carburetting apparatus vaporizes liquid fuel like kerosene, has a high pressurised vaporizing chamber, nozzle to inject liquid fuel at high spetd, burner ejector to suck first air. The apparatus includes sheath heater (1) containing heating wire; liquid fuel vaporising chamber (11) formed between sheath heater; hermetically sealed fixed pipe (8) having fuel induction pipe (13), nozzle (17) to inject vaporized fuel to burner (20), convex ring (21) bulged from the periphery of pipe (8).
Patent KR-900008852-B1 (KR)
Inventor: WADA TOSHIYA
IPC: H01F1/16
Filed: 1985-10-15
Granted: 1990-12-11
Abstract: 내용 없음.
Patent KR-920009553-B1 (KR)
Inventor: ELMER THOMAS H
IPC: C03B20/00
Filed: 1985-10-23
Granted: 1992-10-19
Abstract: 내용없음.
Patent KR-930004557-B1 (KR)
Title: Chromium alloy surface coating of sncm9 steel for using co2 laser
Inventor: MUN BYONG-KI
IPC: C23C4/00
Filed: 1986-04-25
Granted: 1993-06-01
Abstract: A surface chromium alloy of SNCM9 steel is made by irradating CO2 laser on the surface of  a  chromium  containing  alloy  steel sheet. The CO2 laser has 17 mm/sec of  irradating  rate,  1,000  W output and its contacting condition is  f  and  f+1.  The  surface melting by CO2 laser, which is generated at local area  for  short time, makes  it  quenched  and  tempered.  Chromium  element   is distributed homogeneously by convection from high energy  density. Then the chromium coating layer has  good  wear  resistance,  long duration and good adhesion.
Patent KR-890002784-B1 (KR)
Title: A portable square
Inventor: KWAK TAE-YOUNG
IPC: G01B3/08
Filed: 1986-09-04
Granted: 1989-07-28
Abstract: The ruler with a temperature compensation circuit includes; a measurement tube (3) equipped with a head (1) at the end part comprising light receiving and oscillation circuit (7), a buffer (9), and a small size speaker (10); a light transmitting and oscillation circuit (15) connected with a power switch (6); a microprocessor (18) connected with a reference pulse generator (16), a counter (14), and a peak timing signal detector (13); and a display (5) connected with a decoder and driving circuit (17).
Patent KR-900002002-B1 (KR)
Title: Digital time interval measuring apparatus
Inventor: ITO KENJI
IPC: G04F10/04
Filed: 1986-09-30
Granted: 1990-03-31
Abstract: A digital time interval measuring apparatus comprises: (a) main counter means responsive to a predetermined clock signal and a gate signal for stopping the counting of the clock signal when the gate signal is supplied and for counting the clock signal when the gate signal is not supplied, thereby providing a main count value; (b) gate circuit means responsive to predetermined timing signals for supplying the gate signal to the main counter means when any one of the timing signals is generated; (c) count value storage means coupled to the main counter means and the gate circuit means for storing main count data representing the main count value.
Patent KR-900002409-B1 (KR)
Title: Control system for controlling input power to variable displacement hydraulic pumps of a hydraulic system
Inventor: IZUMI EIKI
IPC: F01C20/26
Filed: 1987-01-10
Granted: 1990-04-14
Abstract: The control system is for input power to hydraulic pumps of a hydraulic system including a prime mover and variable displacement hydraulic pumps driven by the prime mover.  The control system comprises a first computing unit for each of the hydraulic pumps, an input torque control value concerning a distribution of input torques of the hydraulic pumps from a representative pressure obtained on the basis of a discharge pressure of at least one other hydraulic pump. A second computing unit determines an input torque for each of the hydraulic pumps on the basis of a corresponding one of the input torque control values.
Patent KR-960001545-B1 (KR)
Title: Television tuning control apparatus
Inventor: TESTIN WILLIAM J
IPC: H04N5/50
Filed: 1987-01-30
Granted: 1996-02-01
Abstract: In a tuning control system for a television receiver, an analog AFT signal is sampled during blanking intervals when the amplitude of the video carrier is relative constant and therefore cannot affect the amplitude of the AFT signal significantly. This reduces the AFT filtering requirements.
Patent KR-910003250-B1 (KR)
Inventor: AIBA YOSHIYO
IPC: B22D11/10
Filed: 1987-02-09
Granted: 1991-05-25
Abstract: 내용 없음.
Patent KR-900005279-B1 (KR)
Title: Process for renaturing proteins
Inventor: RUDOLPH REINER
IPC: C12N9/04
Filed: 1987-04-07
Granted: 1990-07-27
Abstract: Process for renaturation of solns. of denatured protein in a renaturing buffer comprises addn. of denatured protein soln. to renaturing buffer soln., such that the critical concn. for the formation of the folded protein intermediate is reached; then further addn. of denatured protein to exceed the critical concn.; and opt. isolation of the renatured protein. Typical denatured proteins have been freeze-dried. The process is applicable to lyophilised biologically active proteins.
Patent KR-960010557-B1 (KR)
Title: Antibiotic a40926 n-acylaminoglucuronyl aglycons and antibiotic a40926 aglycon
Inventor: SELVA ENRICO
IPC: C07K9/00
Filed: 1987-07-01
Granted: 1996-08-02
Abstract: The present invention concerns new antibiotic substances denominated antibiotic A 40926 N-acylaminoglucuronyl aglycon complex AB, antibiotic A 40926 N-acylaminoglucuronyl aglycon factor A, antibiotic A 40926 N-acylaminoglucuronyl aglycon factor B, antibiotic A 40926 N-acylaminoglucuronyl aglycon factor B0, antibiotic A 40926 N-acylaminoglucuronyl aglycon factor B1, antibiotic A 40926 aglycon and the addition salts thereof, a process for their preparation starting from antibiotic A 40926 complex or a factor thereof, and their use in the treatment of infectious diseases involving microorganisms susceptible to them.
Patent KR-880002302-B1 (KR)
Title: Process for the preparation of catalyst irregular for chorosilane
Inventor: MAMORU DACHIKAWA
IPC: C01B33/107
Filed: 1987-09-07
Granted: 1988-10-22
Abstract: A catalyst for disproportion reaction of chlorosilanes is prepd. by a contacting an organic high molecular wt. compd., in which a halogen atom is is directly banded to an aromatic nucleus, with Li-metal and an alpha- or omega-dihalvalkane of formula X(CH2)n-X' [X=X'=halogen, n=2-10  in a solvent, (b) reacting the omega-haloalkylated organic high molecula wt. compd. with a trialkylphosphine to form the catalyst whose tetraalkylphosphonium salt is banded to the organic high molecular wt. compd. through the alkylene gp. as a bridging gp..  The catalyst has a longer life and is suitable for commercial uses.
Patent KR-950008800-B1 (KR)
Inventor: SUZUKI IKUO
IPC: B24B19/12
Filed: 1987-09-08
Granted: 1995-08-08
Abstract: 내용 없음.
Patent KR-910004620-B1 (KR)
Inventor: YAMAGUCHI DORU
IPC: B66B1/18
Filed: 1987-09-30
Granted: 1991-07-08
Abstract: 내용 없음.
Patent KR-900007710-B1 (KR)
Title: Automatic equalizing circuit of emergency call system
Inventor: KIM HONG-HAN
IPC: H04M19/00
Filed: 1987-10-05
Granted: 1990-10-18
Abstract: The equalising circuit for compensating the attenuation of the transmitting frequency in long distance emergency telephone system controls tri-state switches (SW1-4) with control signals providing from a microprocessor and a CPU through control lines (S1-4). The switches are turned on and off to vary the parallel impedance with 16 different values so that the attenuated gain in the lines of transmission/reception equalising circuit is compensated.
Patent KR-950010209-B1 (KR)
Inventor: YOSHI YOJI
IPC: H03M1/10
Filed: 1988-01-25
Granted: 1995-09-11
Abstract: 내용 없음.
Patent KR-950004665-B1 (KR)
Inventor: SAKAMAKI IWAO
IPC: B23B31/173
Filed: 1988-04-21
Granted: 1995-05-04
Abstract: 내용 없음.
Patent KR-910008548-B1 (KR)
Inventor: MASHINO GEIICHI
IPC: H02J7/24
Filed: 1988-04-29
Granted: 1991-10-18
Abstract: 내용 없음.
Patent KR-900009077-B1 (KR)
Inventor: AN MIN-HO
IPC: H01J29/07
Filed: 1988-05-06
Granted: 1990-12-20
Abstract: 내용 없음.
Patent KR-910003265-B1 (KR)
Inventor: GUROSAKI YOSIO
IPC: F16B13/14
Filed: 1988-08-11
Granted: 1991-05-25
Abstract: 내용 없음.
Patent KR-910004914-B1 (KR)
Inventor: SAKAI OUSUKE
IPC: B63B25/16
Filed: 1988-09-12
Granted: 1991-07-18
Abstract: 내용 없음.
Patent KR-0127313-B1 (KR)
Inventor: NOUIS ARI M
IPC: H02P7/288
Filed: 1988-09-14
Granted: 1998-04-06
Abstract: 내용 없음.
Patent KR-920003880-B1 (KR)
Inventor: GAKUMU MASAGAZ
IPC: H01L21/31
Filed: 1988-09-16
Granted: 1992-05-16
Abstract: 내용 없음.