baber/WOPTO huggingface dataset:
Patent KR-820001504-B1 (KR)
Title: Capacitive pressure sensor
Inventor: CIMADA SADOSI
IPC: G01L9/12
Filed: 1979-07-28
Granted: 1982-08-25
Abstract: A capacitive pressure sensor has a conductive silicon diaphragm(203) with at least at one side a thick peripheral support region and a thin deflectable part forming a hollow on one side of the diaphragm, and a borosilicate glass substrate with an aperture and a flat face against the diaphragm hollow to form a pressure chamber for supply of pressurised fluid through the aperture.  A conductive thin layer on the flat face in the chamber forms electrostatic capacity with the diaphragm, and the diaphragm and substrate are rigidly joined by anodic bonding to seal the chamber.  The thin part of the diaphragm is pref. formed by etching to reduce symmetrically in thickness from the support region.
Patent KR-840000487-B1 (KR)
Title: Pressurized water system
Inventor: TAKI TOMOHIKO
IPC: E03B5/00
Filed: 1980-03-21
Granted: 1984-04-12
Abstract: This automatic water supplying system has a pneumatic tank for storing and confining compressed air, a water suction pipe to feed water to the pneumatic tank, and a pump connected to the water suction pipe that sucks water through the pipe.
Patent KR-840000536-B1 (KR)
Title: Method for monitoring arc welding
Inventor: JUSTICE JAMES W H
IPC: B23K31/00
Filed: 1980-04-18
Granted: 1984-04-20
Abstract: An arc-welding viewing system comprises a monochromatic light source for illuminating the portion of the workpiece being welded and a narrow band filter(22) for filtering light reflected from the workpiece. The filter passes only a preselected band through the viewer. The monochromatic light enhances the arc illumination that reaches the viewer, such as a camera(24), to provide a more desirable contrast ratio between the arch and its surroundings. This provides a high definition image amenable to remote viewing.
Patent KR-810001649-B1 (KR)
Title: Method of preparing non-toxic polyethylene film
Inventor: LEE SUNG WOO
IPC: C08K5/00
Filed: 1980-08-26
Granted: 1981-10-27
Abstract: Non-toxic and anti-static polyethylene film, useful for food packaging, was prepd. by extruding the mixture.  The mixture was composed of polyethylene resin 1 wt. part, aliphatic acid amide 0.0002-0.001 wt. part, glycerine mono stearate 0.0004-0.0012 wt. part and 0.0002-0.0008 wt. part wax which was obtained from acra wax C, paraffin wax and sulffa wax.  The aliphatic acid was erucamide, oleylamide or stearamide.
Patent KR-840002443-B1 (KR)
Title: Process for preparing dichloroacetamides by continuous process
Inventor: BENKE ALAN HENRY
IPC: C07D263/04
Filed: 1981-04-27
Granted: 1984-12-28
Abstract: Prepn. of N,N-diallyldichloroacetamide or N-dichloroacetyl oxazolidine of formula (I) comprises (a) introducing dichloroacetyl chloride, an aq. sodium hydroxide, N,N-diallylamine, and oxazolidine of formula (II) into a circulating liq. reaction medium; (b) continuously introducing this mixt. to a non-agitated reactor; (c) retaining the mixt. in the reactor until it separates into an aq. phase (A) contg. brine and an organic phase (B) contg. crude prod.; (d) continuously withdrawing (A); (e) continuously withdrawing one portion of (B) and recovering the prod. from it; and (f) continuously withdrawing a second portion of (B) and recycling it to (a). R is H or C1-3 alkyl.
Patent KR-860001068-B1 (KR)
Title: An ideogram generator
Inventor: WHITE DOUGLASS A
IPC: G06F17/21
Filed: 1981-08-27
Granted: 1986-08-04
Abstract: A computer is used to generate ideograms such as Chinese and Korean characters from an input of coded signals. The input device may be a standard ASCII kiyboard having 44 keys with a shift key creating an 88 character input set. Combinations of two strokes result in the ideogrambeing made for input while certain other key strokes serve to combine one or more ideograms to generate more complex characters. The system will produce in excess of 50,000 characters with an average of less than 4 key strokes per character.
Patent KR-880000908-B1 (KR)
Title: Deflection circuit
Inventor: FERNSLER RONALD E
IPC: H04N3/16
Filed: 1982-02-11
Granted: 1988-05-30
Abstract: The circuits operates in the absence of trigger pulses normally derived by an automatic frequency and phase control loop. During normal operation the AFPC loop generates trigger pulses in synchronized phase relationship with flyback pulses from deflection circuit.  During receiver start-up, the flyback pulses are not present and no trigger pulses are generated.  The start-up circuit thus provides auxiliary pulses, which occur later in time than the normal occurance of the trigger pulses and are applied to the horizontal deflection circuit.
Patent KR-880001718-B1 (KR)
Title: Process for the preparation of imidazo(1,2-a)pyridine and pyrazine
Inventor: BRISTOL JAMES A
IPC: C07D471/04
Filed: 1982-06-25
Granted: 1988-09-08
Abstract: Imidazo [1,2-a  pyridine having formula (I) and pyrazine, its 2,3- dihydro, 5,6,7,8-tetrahydro and 2,3,5,6,7,8-hexahydro derivs. and their pharmaceutically acceptable salts are new.  In the formula, B=CH or N; in the case of B=N, R5=H, halogen, R2 and R3=H, (hydroxy) lower alkyl or -NO independently, R4=-O-R8-Ar[R8=lower alkylene ; in the case of B=CH, R2=H, (hydroxy) lower alkyl, R5=H, halogen or lower alkyl, R3=lower alkyl, -CH2N, R4=-O-R8-Ar or -NHR8-Ar [Ar=tienyl, furanyl, substd. Ph  attached at 5,6 or 7 site. (I) are useful for the treating peptic ulcers.
Patent KR-910000640-B1 (KR)
Title: Process for preparing heterocyclic compounds active on the central nervous system
Inventor: BIZIERE KATHLEEN
IPC: C07D403/04
Filed: 1984-01-20
Granted: 1991-01-31
Abstract: The present invention relates to the compounds of formula   <IMAGE> in which X1 represents N or   <IMAGE>  X2 represents N or    <IMAGE> provided that X1 and X2 are different from each other; R1 and R2 being -(CH2)nOH wherein n is 1 to 4 or   <IMAGE>  represents a saturated heterocycle with 5 or 6 groupings containing one nitrogen atom as heteroatom, substituted in 3 or 4 position for example by (CH2)mOR6 where R6 is H or an acyl radical or an amido radical; to a process for preparing said compounds; and to the drugs containing said compounds active in particular on the central nervous system.
Patent KR-910005805-B1 (KR)
Title: Device for guiding the control clusters of nuclear reactors
Inventor: DENIZOU J P
IPC: G21C7/10
Filed: 1984-06-02
Granted: 1991-08-03
Abstract: 1. Nuclear reactor comprising : a core consisting of fuel assemblies located side-by-side and cooled by an upward flow of a cooling fluid ; clusters for controlling the nuclear reactor each formed of a plurality of absorbing rods (8) vertically movable and connected together by a spider having radially directed arms to a common axial drive shaft, the rods having such a distribution that some of them are located as pairs of two rods radially aligned with respect to the axis of the cluster ; and devices for guiding the control clusters during their movements above the core, each having a guide casing within which horizontal plates achieve discontinuous guiding of the absorbing rods of the control cluster in the upper part of the casing (11), characterized in that, in the lower portion of each casing (11), those absorbing rods (8) which are arranged in pairs are mechanically guided on their periphery by the horizontal plates (14) only and in that each pair is surrounded by an envelope (22) each connecting two plates, defining a cooling fluid steadying space around said absorbing rods and decreasing the hydraulic actions onto the rods.
Patent KR-900006764-B1 (KR)
Title: Panelling system and carrier therefor
Inventor: RIJNDERS WILLEM
IPC: E04F13/21
Filed: 1984-08-14
Granted: 1990-09-21
Abstract: The panels have inturned side portions on each side, one being turned towards the other side and then back towards the main panel portion to provide a rim. The other side portion has at its free edge an arm turned away from the one side. The panels are supported by inverted U- or V-shaped cross-section carrier formed with notches which define hook shaped lugs. These lugs are inserted into the rims of the panels and the arms of the adjacent panels overlie these rims. A space is provided above the thus mounted arms so that the arms can be lifted in direction to allow the underlying rim to be disengaged by successive movements to remove the panel.
Patent KR-870000468-B1 (KR)
Title: Method for producing yogurt spread
Inventor: LEE SHIN-HO
IPC: A23C9/123
Filed: 1984-08-17
Granted: 1987-03-11
Abstract: Yogurt spread was prepd. from yogurt, vegetable oil and fats. Thus, 12g skim milk was dissolved in 100ml water, autoclaved, and inoculated with Lactobacillus bulgaricus at 15%, and the mixt. was incubated 24hr at 37 C. The fermn. broth was cooled  to 20 c and homogenized with adding the vegetble oils slowly at 5000rpm to give 400g yogurt spread. The pH of final product was within 3.55.8.
Patent KR-850000048-B1 (KR)
Title: Process for preparing alpha-substituted ureido benzyl penicillin derivatives
Inventor: OI NOBUHIRO
IPC: A61P31/04
Filed: 1984-08-21
Granted: 1985-02-14
Abstract: The title compds. of formula [I  were prepd. by reacting Nbenzoylcarbamine acids with alpha-aminobenzyl penicillines. Thus, 12.9 g N,O-bis(trimethylsilyl)acetamide was reacted with amoxicillin at 10-15≰C to give 4.5 g 6-[D(-)-alpha-[3-(3,4-dihydroxybenzoyl)-3- (3-hydroxypropyl)-1-ureido -alpha-(4-hydroxyphenyl) acetamide  penicillanic acid, a white powder.
Patent KR-880001667-B1 (KR)
Title: Improvements in and relating to pipe connectors
Inventor: DEARDEN GEOFFREY CAVE
IPC: F16L15/06
Filed: 1984-08-30
Granted: 1988-09-05
Abstract: The pipe conector comprises a male member which has an external frusto-conical surface provided with a thread and a female member having an internal frusto-conical surface provided with a thread. The member are provided with sealing surfaces which are brough into sealing abutment under an axially directed compressive force.  The pitch of the thread is varied along the axial length. The surfaces are divided into three portions, an intermediate portion in which the pitches of the threads of the members are the same, and end portions in which the pitches differ.  In the end portions closest to the sealing surfaces, the pitch of the thread of the member, which is compressed during full engagement of the members, is greater than the pitch of the thread of the other member.
Patent KR-850000197-B1 (KR)
Title: Process for preparing pyrrolo (3,4-d)(2) benzazepines
Inventor: FRYER RODNEY IAN
IPC: C07D207/34
Filed: 1984-09-25
Granted: 1985-03-05
Abstract: Pyrrolo (3,4-d) (2)benzazepines of formula (I) and their acid addn. salts are prepd. by converting compds. of formula (I') to their corresponding amides, lower alkylamides, or di-lower alkylamides. In the formulas, R1 and R3 are H, lower alkyl, C3-7  alkenyl, or C3-7 alkynyl; R2 is C2-7 carboxylic acid or its amide; R4 is H or straight-chain lower alkoxy; R5 is H, F, Cl, or Br; R6  is F, Cl, or Br; R2' is -(CH2)n-CO2- (lower alkyl); n is 1-6. (I) have sedative and anxiolytic activity.
Patent KR-860002132-B1 (KR)
Title: Loading and unloading device of head drum
Inventor: KIL WON-SOB
IPC: B23Q7/05
Filed: 1984-10-23
Granted: 1986-12-11
Abstract: Guide rails(2,2') are established with some inclined angle to deliver the pre-shaped head drums and the worked head drums automatically. A body portion(6), which is established on a supportor(9), is parallel to the rails horizontally. A cylinder(7) ascends and descends the body portion. A cylinder(4) moves the feed portion(3) right and left in the body portion. A gripper(12) holds the pre-shasped head drum of the guide rail. An inserting shaft(13) feeds the worded head drum to the guide rail(2'). A cylinder(10) moves the supporting plate(11) back and forth from the feed portion(3).
Patent KR-890002478-B1 (KR)
Title: Circuit breaker
Inventor: OOISHI HIROTOSHI
IPC: H01H/
Filed: 1984-11-15
Granted: 1989-07-10
Abstract: Movable and fixed contacts (1b,12) are opened and closed by an operating mechanism including a latch lever (47) pivoting on the movable contact arm.  A toggle link mechanism has one end connected to an operating handle (2), and the other end (4) directly engageable with the contact arm and latch lever.  The lever (47) has a latching end (47a) which co-operates with a latch surface (46a) on the contact arm to catch the other end (4) of the toggle link mechanism.  When the device is tripped, the latch lever (47) moves away from the latch surface (46a), releasing a second toggle link and allowing the contact arm to move into its open position. The device has improved interrupting capaility.
Patent KR-880000732-B1 (KR)
Title: A coin soriting devices
Inventor: KANG JONG-UK
IPC: G07D5/00
Filed: 1985-03-23
Granted: 1988-04-29
Abstract: The device includes three coin sorting devices that respectively sort 500, 100 and 50 won coins consecutively in the sequential order, each with an optical sensor for counting sorted coins and with a mechanism for collecting bad coins not caught by the sensor.
Patent KR-900004858-B1 (KR)
Title: Washing machine
Inventor: OIDA SUSUMU
IPC: D06F/
Filed: 1985-07-03
Granted: 1990-07-08
Abstract: Clothes washer, comprises upright tub housing wash basket with bowl- shaped agitator in its lower region. A ring on the wash basket inner wall masks the gap between the wall and the rim of the agitator, so that clothes cannot be drawn into the gap. Pref. the ring is downwardly and inwardly inclined, to have at its lower rim the same dia. as the agitator rim, and contains liq. as balance wt. for the basket during spinning.
Patent KR-930010216-B1 (KR)
Inventor: LEE U-SONG
IPC: C09J7/20
Filed: 1985-09-13
Granted: 1993-10-15
Abstract: 내용 없음.
Patent KR-890002563-B1 (KR)
Title: Electroconductive resin composite
Inventor: IKENAKE YUKIO
IPC: C08L67/02
Filed: 1985-11-27
Granted: 1989-07-18
Abstract: An electroconductive resin composite is manufactured by polymerizing at least one monomer of electroconductive polymers in a resin matrix which exhibits an anisotropy in the melt phase.  The monomer is an acetylene, vinyl or aromatic compound.  The resin composite is used as a material for a solar cell, a polymer battery, a high energy battery and a temp. sensor.
Patent KR-900001949-B1 (KR)
Title: Preparation of colored-high strength polybuthylene terephthalate
Inventor: KWON KI-CHUNG
IPC: C08L67/02
Filed: 1985-12-28
Granted: 1990-03-26
Abstract: A colored high-strength polybutylene terephthalate is prepd. by freeze-pulverizing 100 pts. wt. non-colored polybutylene terephthalate with polyethylene terephthalate to obtain a highconcentrated colored granula; then, melting and mixing 1.25-26.5 pts. wt. the colored granula, 12.5-37.0 pts. wt. a glass-fiber treated by silane cpd. and 0.25-8.5 pts. wt. trimethoxy silane of formula (I).  In (I), R1 is an amino cpd.
Patent KR-900008296-B1 (KR)
Title: Pen recorder
Inventor: KIMURA TOSHIO
IPC: G01D9/02
Filed: 1986-03-19
Granted: 1990-11-12
Abstract: The pen recorder has a movable carriage (29) which is displaced transverse to the movement of the recording sheet (20) in dependance on the magnitude of the measured parameter. A potentiometer (31) provides a feedback signal representing the actual position of the carriage (29) for a servo positioning control. A flat bushless DC motor (M) is used for the servo drive, comprising a yoke plate and a drive disc supported on the same side of a printed circuit board (28) , with the rotor and the armature coils on the opposite side of the circuit board supporting the preamplifier (54) for the measuring signal and the servo amplifier (55).
Patent KR-950001850-B1 (KR)
Inventor: DEBROW ROBERT S
IPC: C08L83/07
Filed: 1986-05-02
Granted: 1995-03-04
Abstract: 내용 없음.
Patent KR-940004541-B1 (KR)
Title: Treponema hyodysenteriae bacterin and process for preparing thereof
Inventor: PARIJECK RICHARD E
IPC: C12P1/04
Filed: 1986-05-09
Granted: 1994-05-25
Abstract: The yield of active cells of Treponema hyodysenteriae is increased by cultivating such cells in a nutrient medium which contains a cholesterol-rich bovine fraction. Cells cultivated in this way and killed can be used to produce a bacterin which is active against dysentery in pigs.
Patent KR-970011019-B1 (KR)
Inventor: RONALD ANSONY HOORMANN
IPC: G07D5/00
Filed: 1986-05-27
Granted: 1997-07-05
Abstract: 내용없음.
Patent KR-890002448-B1 (KR)
Title: Pcb line test device for processing used
Inventor: LEE JAE-RYONG
IPC: H05K13/08
Filed: 1986-06-19
Granted: 1989-07-03
Abstract: The apparatus including the CCTV camera and computer utilizes the image process for detecting the line fault of the PCB pattern.  The circuit comprises a CCTV camera (10) for accepting the image, a digitizer (20) converting analog signal to discret digital signals, a two-dimensional local shift buffer (30) for converting the output of the digitiser to two-dimensional state, a boundary line detection circuit (40) for optaining only information about the boundary of the pattern line, a small area detecting circuit (50) for detecting the fault area, a comparator (50) for obtaining final PCB pattern line, and an error determination circuit (70).
Patent KR-930006326-B1 (KR)
Title: Coagulation-neutral hydrophilic glass fibres
Inventor: BIELLRINGER HANS
IPC: B01D39/20
Filed: 1986-06-26
Granted: 1993-07-14
Abstract: Hydrophilic glass fibers which have bonded to their surfaces a layer of silane molecules of the formula   <IMAGE>   are useful for the separation of plasma from blood for haemostasiological testing. In the formula: the molecule is bonded at its end oxygen to a surface of a glass fibre; R1 is C2-C6 alkylene; X is OH, C1-C6 alkoxy, having n carbon atoms and up to (n-1) OH groups in which n is 1-6, or an amino acid or peptide residue; and each of R'3 and R''3 is C1-C6 alkyl, an oxygen bridge to the silicon atom of another silane molecule or an oxygen bridge to the glass surface. The fibres have an average diameter of from 0.2 to 5 microns and a density of 0.1 to 0.5 g/cm3.
Patent KR-960001879-B1 (KR)
Inventor: EVERY PETER
IPC: B60T8/42
Filed: 1986-08-09
Granted: 1996-02-06
Abstract: 내용 없음.
Patent KR-890005001-B1 (KR)
Inventor: KIM CHANG-NAM
IPC: G06F13/38
Filed: 1986-10-07
Granted: 1989-12-04
Abstract: 내용 없음.
Patent KR-950005894-B1 (KR)
Inventor: AMANTINI ERIC
IPC: F17C13/08
Filed: 1986-11-19
Granted: 1995-06-02
Abstract: 내용 없음.
Patent KR-900001263-B1 (KR)
Title: Character space control devices of dot printer
Inventor: SHIM BYUNG-GON
IPC: G06K15/10
Filed: 1986-12-29
Granted: 1990-03-05
Abstract: The device for adjusting the character space in dot printr is used for reducing or widening the space between characters in a sentence. The character space adjustment device comprises an encoding circuit (4) which takes out a key data from a key buffer (2) under control of a microprocessor (3) and encodes the font width of the relevant character, a data register (5) which stores the data for processing, a text memory register (6) which stores the entire data on the alphabet for printing, and a font width counter (7) which counts the accumulated value for a font width and a space width, and generates the control signal for the last data.
Patent KR-880002486-B1 (KR)
Title: Trimplan fabric's yarn
Inventor: KU JONG-HUI
IPC: D01F8/00
Filed: 1987-01-20
Granted: 1988-11-19
Abstract: A mixture is prepared in pellet state comprising polyehtylene 96-98%, colour pigment 1.2-3.3% and antifading agent 0.3-0.7% in weights mixed in uniform at the room temperature.  The pellet mixture is heated at 270-290 deg. C to be melted and drawn through a mould into film state.  The film is cooled by a water cooling system and then passed through 100 deg. C hot water to be attenuated by a known method at the rate of 10 cm/sec for spinning.
Patent KR-910004710-B1 (KR)
Inventor: NATMURA SIGERU
IPC: E05F11/48
Filed: 1987-02-17
Granted: 1991-07-10
Abstract: 내용 없음.
Patent KR-970001720-B1 (KR)
Inventor: KAJIWARA KATSUMASA
IPC: E02B9/08
Filed: 1987-02-17
Granted: 1997-02-14
Abstract: 내용 없음.
Patent KR-950015183-B1 (KR)
Inventor: DIETERICH CHARLES BENJAMIN
IPC: G06F7/544
Filed: 1987-05-14
Granted: 1995-12-23
Abstract: 내용 없음.
Patent KR-900007174-B1 (KR)
Title: Welded leaf spring mounting for magnetic head assembly of disk drive apparatus
Inventor: OHKITA MASAO
IPC: G11B5/48
Filed: 1987-05-15
Granted: 1990-09-29
Abstract: The magnetic head assembly includes a carriage on which a lower magnetic head is carried, an arm on which an upper magnetic head is carried and a hinged leaf spring about which the arm can swing. The spring is located remotely from the magnetic heads and is welded to the carriage, with the arm mounted to the carriage. In assembling the assembly, the arm is pressed against the carriage and the assembly stores or retrieves data from the disc. Under this condition, the distance between the gaps in the upper and lower magnetic heads is adjusted. After the adjustment, the leaf spring is welded to the carriage, using a laser beam, for example. At this time, any force which displaces the postion of the leaf spring is not applied to the spring.
Patent KR-900009158-B1 (KR)
Inventor: KOKA HITOSHI
IPC: C08L67/02
Filed: 1987-09-30
Granted: 1990-12-22
Abstract: 내용 없음.
Patent KR-920000969-B1 (KR)
Inventor: DONISHI DOSHIYUKI
IPC: H05K3/34
Filed: 1988-02-17
Granted: 1992-01-31
Abstract: 내용 없음.
Patent KR-960005630-B1 (KR)
Inventor: RICHESON DONALD WDWARD
IPC: C08L67/02
Filed: 1988-03-11
Granted: 1996-04-30
Abstract: 내용 없음.
Patent KR-910001799-B1 (KR)
Title: Jet nozzle of aromatic polyamide filament
Inventor: JI CHANG-SUB
IPC: D01F1/00
Filed: 1988-04-15
Granted: 1991-03-26
Abstract: In  making  aromatic  polyamide  filaments,  pre-polymerized substance of liquid crystal form and  polymerization  accelerating solvent are sprayed simultaneously through different jet  nozzles, thus making it possible to obtain uniformly oriented short  fibers continuously. Also by using this  apparatus,  it  is  possible  to control the fiber's length and thickness  freely.  This  apparatus comprises polymerization accelerating solvent inducing  pipe  (1), and its accesory (3),  liquid  crystal  pre-polymerized  substance inducing pipe (4), and its accesory (6), nozzle tube  (8),  nozzle orifice (7), polymerization control pole (9), etc.
Patent KR-910005034-B1 (KR)
Title: Device which measures charge in non-volatility memory
Inventor: CHO SONG-HI
IPC: G11C29/00
Filed: 1988-06-29
Granted: 1991-07-22
Abstract: The apparatus  for  measuring  charge  quantity  storaged  at floating gate in non- volatile memory device comprises: the  first and second pads; a high voltage sensor and  transprot  circuit;  a pass transistor section. The first and second outputs of thr first state are generated in the case of vias voltage to the  first  pad having the first state. The first and second outputs of the second state are generated in the casc of vias voltage to the  first  pad having the second state.
Patent KR-910007279-B1 (KR)
Inventor: KOBAYASHI SATOSHI
IPC: B60W10/18
Filed: 1988-07-05
Granted: 1991-09-24
Abstract: 내용 없음.
Patent KR-970005224-B1 (KR)
Inventor: ELLISON DONALD E
IPC: H01F27/32
Filed: 1988-07-14
Granted: 1997-04-14
Abstract: 내용 없음.
Patent KR-0146294-B1 (KR)
Inventor: MINE KAZUTOSHI
IPC: H01L23/31
Filed: 1988-07-22
Granted: 1998-08-01
Abstract: 내용 없음
Patent KR-910006663-B1 (KR)
Inventor: KOBAYASHI TAKKASHI
IPC: G11B17/22
Filed: 1988-11-15
Granted: 1991-08-30
Abstract: 내용 없음.
Patent KR-940011214-B1 (KR)
Inventor: IMANAKA KOJIRO
IPC: B23B51/02
Filed: 1988-12-17
Granted: 1994-11-29
Abstract: 내용 없음.
Patent KR-0139414-B1 (KR)
Inventor: DANIEL SELLE
IPC: H01L29/73
Filed: 1988-12-28
Granted: 1998-07-15
Abstract: 내용 없음
Patent KR-910008594-B1 (KR)
Inventor: LEE CHUL
Filed: 1989-01-06
Granted: 1991-10-19
Abstract: 내용 없음.