baber/WOPTO huggingface dataset:
Patent KR-820000779-B1 (KR)
Title: Process for the preparing herbicidally active phenyulurea derivatives
Inventor: FRANKE H
Filed: 1979-01-24
Granted: 1982-05-10
Abstract: Title compds. (I; R1 = H, C1-4 alkyl, C2-4 alkenyl, C2-4 alkinyl, methoxy; R2 = H, C1-4 alkyl; R3 = H, C1-4 alkyl; R4 = halogen; R5 = halogen; X = H, C1-4 alkyl, halogen, methoxy; n = 1-2), useful as herbicides, were prepd. by the reaction of compd. II and III.  Thus, 22 g 1-bromomethyl-2,2-dichlorocyclopropane, 16 g CaCO3 and 2 g sodium iodide were reacted with 17 g 1,1-dimethyl-3-(3-hydroxyphenyl)-urea in 60 ml DMF.  after 20 hr, 6 g 1-bromoethyl-2,2-dichlorocyclopropane and 5 g K2CO3 were added, and stirred for 6 hr to give 19.9 g 1-[3-(2,2-dichlorocyclopropylmethoxy)-phenyl -1,3-dimethylurea.
Patent KR-840000370-B1 (KR)
Title: Method for producing photopolymerized hydrophilic interpolymers of unsaturated carboxylic acid and esters
Inventor: GEORGE PAUL JOHN
IPC: C08F2/54
Filed: 1980-09-09
Granted: 1984-03-27
Abstract: A copolymer is prepd. from (a) 50-90 wt.% of acrylic acid, with 60-100% of the COOH gps. neutralized with an alkali metal or NH4 before polymerization, (b) 2-25 wt.% of a higher acrylic ester of formula CH2=CR'-COOR, where R' is H or (m)ethyl; and R is C10-30 alkyl, and (c) 5-30 wt.% of a lower acrylic ester of formula CH2=CR'-COOR", where R" is C1-8 alkyl; 0-50% of (c) may be replaced by (meth) acrylonitrile or (meth)acrylamide.  The mixt. polymerized by exposure to an electron beam.
Patent KR-830001566-B1 (KR)
Title: 계척(計尺)장치
IPC: G01B7/04
Filed: 1980-09-29
Granted: 1983-08-12
Abstract: 내용 없음.
Patent KR-830002665-B1 (KR)
Title: Circulation promoting apparatus of hot water boiler
Inventor: KIM CHAN HO
IPC: F24D3/00
Filed: 1981-12-07
Granted: 1983-12-07
Abstract: The appts. for promoting the circulation of hot water has a heat recovery system between a panel heating coil and a central heating coil close to the side of a combustion chamber(14).  The heat recovery system is on the bypass flow, and hot water from the central heating coil is reheated by exhaust gas from the combustion chamber.  The heat recovery system consists of a cylindrical heating part with a suction pipe(II) and a discharge pipe(9).  Hot water is reheated in a cone-shaped water chamber(8) and is supplied to the panel heating coil to promote the circulation of hot water in a main flow pipe(12).
Patent KR-860000356-B1 (KR)
Title: Chain spraying apparatus
Inventor: WEIS SIEGFRIED K
IPC: B65G45/02
Filed: 1982-04-01
Granted: 1986-04-12
Abstract: A chain-spraying device includes a circular sprocket having a series of secured teeth. A liquid supply tank is supported on the sprocket for rotation. The tank and sprocket are supported adjacent to the chain so that the teeth will engage the chain, causing the sprocket and tank to rotate. Spray nozzles are carried on a disc and positioned by the teeth. Each spray nozzle is connected to a mechanical pump, which in turn is connected to the liquid supply tank. The mechanical pump includes a cam-actuated plunger that reciprocates the plunger when the teeth engage the chain and rotate the sprocket. A flip-up flag indicator and an agitator are provided.
Patent KR-890000158-B1 (KR)
Title: Sputtering device
Inventor: KIKUCHI NORIBUSA
IPC: H01J37/34
Filed: 1982-07-20
Granted: 1989-03-08
Abstract: A sputtering apparatus for forming a coating on cutting tools, wear resistance pieces and the similar article to be treated, comprising: a vacuum chamber (1), an article holder (7), a target cathode (T) thereby being of a tubular skeleton strueture disposed in surrounding relationship to the article holder for grounding the vacuum chamber to thereby make the chamber an four rods or pipes like elongated target elements, and applying a negative voltage to the target cathode and the article, and joining the target elements.
Patent KR-900008440-B1 (KR)
Inventor: PELGROM MARCELLINUS J M
IPC: H01L29/78
Filed: 1982-08-26
Granted: 1990-11-20
Abstract: 내용 없음.
Patent KR-910005067-B1 (KR)
Inventor: TOLINO RALPH W
IPC: G21C15/02
Filed: 1984-02-15
Granted: 1991-07-22
Abstract: 내용 없음.
Patent KR-860001798-B1 (KR)
Title: Device for membrane oxygenator
Inventor: DIETTRICH JR LAMBERT JOHN
IPC: A61M1/14
Filed: 1984-03-08
Granted: 1986-10-23
Abstract: A mass transfer device for treating blood has a pleated, selectively permeable membrane defining two sets of alternating pockets for blood and a treating fluid (O2), and a discrete support screen within each pocket. The screens are interdigitated, and the assembly of the membrane and support screens is held as a compressed stack. The device gives excellent gas transfer rates and low pressure drops with negligible effect on blood components.
Patent KR-890000347-B1 (KR)
Title: Refrigeration system
Inventor: ASUMI AKIRA
IPC: F25B1/00
Filed: 1984-05-24
Granted: 1989-03-14
Abstract: A refrigeration system has a main refrigerant circuit including a compressor (10), a condenser (20), a first pressure reducer (30), a gas-liquid separator (50), a second pressure reducer (70), and air evaporator (80) connected in series to form a closed loop.  A gas injection passage (90) provides a communication between the gaseous phase part of the gas-liquid separator and a compression chamber of the compressor.  A check valve (60) is disposed in the downstream of the gas-liquid separator, and a by-pass passsage (100) is provided for connecting directly the outlet pipe of the condenser to the inlet pipe of the evaporator to bypass the gas-liquid separator.
Patent KR-900002598-B1 (KR)
Title: Power on-off control circuit
Inventor: KOHODA KEN
IPC: G05F1/46
Filed: 1984-07-27
Granted: 1990-04-20
Abstract: A transistorised stabilising circuit stabilises power applied from a power source with a detector sensing whether the power is inputted. A switching circuit disables a supply control signal in response to the output of the detector.  A control circuit controls on-off states of the power source in response to the switching circuit connected to the power stabilising circuit.  The control signal is produced using a switching transistor, whilst the detector includes a Zener diode and a resistance.  The stabilising transistor is quickly placed in the cut-off state when the input voltage is interrupted.
Patent KR-900003602-B1 (KR)
Title: Pcm type record-playback system
Inventor: HIROMI JUSO
IPC: G11B20/08
Filed: 1985-06-05
Granted: 1990-05-26
Abstract: The system has a digital encoder circuit and a blanking period generation circuit. An oscillation circuit generates a reference clock signal. A secondary signal generation circuit is adapted to generate a secondary signal on the basis of the reference clock signal to indicate positions on a magnetic tape. A signal synthesiser is driven in a time-divided manner, to output primary and secondary signals by inserting the secondary signal in the blanking periods of the primary signal. A recording circuit records a signal from the signal synthesiser on a track of tape. The system concurrently records on the tape both the analog primary signal by converting it into a digital signal by sampling and quantising it and the secondary signal for showing a position on the tape.
Patent KR-890001279-B1 (KR)
Title: Thermal print head
Inventor: MEGO KAZUYOSHI
IPC: H05K1/11
Filed: 1985-10-17
Granted: 1989-04-28
Abstract: The thermal print head has a substrate carrying a heating resistance (2) and an associated driving element (4) which are connected by conducting wires.  The wires are arranged to lie within the width of the driving element (4) and beneath it.  As the wires approach the driving element their width is reduced and their density increased. As they approach the connection points of the element, their width increases.  The driving element is connected to the wires via a controlled collapse bonding method.
Patent KR-900004550-B1 (KR)
Title: Coal slurry composition
Inventor: COLEGROVE GEORGE T
IPC: C10L1/32
Filed: 1986-01-21
Granted: 1990-06-29
Abstract: The aq. slurry compsn. contains min. 60 wt.% coal and biosynthetic polysaccharide as stabilisers e.g. 0.01-0.10 wt.% S-130 or S-194. The 0.75 wt.% of S-194 solution has Brookfield viscrosity of min. 2000 cp at No. 2 spindle of 3 rpm. The slurry has a good heat-stability, shear and storing properties at room temperature.
Patent KR-900000995-B1 (KR)
Title: Logic circuit having a test data loading function
Inventor: SKIHARA DAKANORI
IPC: H03K3/037
Filed: 1986-04-30
Granted: 1990-02-23
Abstract: The logic circuit includes test data terminal in JK flip-flop circuit which comprises a first-stage logic circuit having two input terminals for receiving an input data resepctively.  A second-stage logic circuit has an input connected to the output of the first-stage logic circuit and further has a clock signal input terminal for receiving a clock signal.  There is a noninverted signal output terminal, and an inverted signal output terminal. The first-stage logic circuit operatively selects either the test data or the first and second input data in response to the enable signal, and the selected data is latched in the second-stage logic circuit in response to the clock signal.
Patent KR-940000808-B1 (KR)
Title: Absorbent core and disposable absorbent products containing them
Inventor: WANG ARTHUR
IPC: B01J20/26
Filed: 1986-06-28
Granted: 1994-02-02
Abstract: The present invention relates to absorbent structures in which hydrogel has improved ability to absorb salt-containing fluids due to inclusion within the absorbent structures of fibrous anion exchange materials. The absorbent structures of the present invention comprise hydrogel and fibrous anion exchange material (e.g., DEAE cellulose), and, optionally, fibrous cation exchange materials and/or conventional absorbent materials; said absorbent structures having an equilibrium pH of from about 5 to about 11. The present invention further relates to disposable absorbent products (e.g., diapers, incontinent pads, sanitary, napkins) which comprise absorbent structures of the present invention.
Patent KR-900005257-B1 (KR)
Title: Beta-lactian antibiotics and process for preparation thereof
Inventor: EVANS DAVID A
IPC: C07D413/04
Filed: 1986-07-16
Granted: 1990-07-21
Abstract: 1-Carba(-ditha)-3-cephem-4-carboxylic acid esters of formula (I) and their acid addn. salts are prepd. by cyclization of a cpd. of formula (II) in the presence fo Rh catalyst. In the formulas, R1 is a protecting gp.; R2= H, a protecting gp. or COR3; R3= C1-6 alkyl, Ar, CH2(Z)mAr or OR3≰C; Ar= phenyl obt. substd. by 1 or 2 of C1-4 alkyl, C1-4 alkoxy and halogen; Z= O or S; m= 0 or 1; R3≰C= C1-4 alkyl, C5-7 cycloalkyl, benzyl, nitrobenzyl, methoxybenzyl or halobenyl. (I) are sueful as antibiotic intermediates.
Patent KR-940003755-B1 (KR)
Title: Process for the preparation of pyridine compouds
Inventor: UNO HITOSHI
IPC: C07D213/80
Filed: 1986-07-19
Granted: 1994-04-30
Abstract: Compounds of the formula:wherein X is alkylene or-(CR<sub>6</sub>-CR<sub>7</sub>)<sub>r</sub>- wherein R<sub>6</sub> is H, alkyl or phenyl, R<sub>7</sub> is H, alkyl, cyano or phenyl, and r is 1 or 2; A is alkylene or alkylene interrupted by at least one double bond;R<sub>1</sub> is H, halogen, alkyl, alkoxy, alkylthio, cycloalkyloxy, cycloa-Ikylthio, alkoxycarbonyl, carboxy, phenyl, phenoxy, phenylthio, 3-pyridyloxy or 3-pyridylthio; R<sub>2</sub> is H, hydroxy, alkanoyloxy or alkoxycarbonyloxy, or adjacent R, and R<sub>2</sub> may combine to form tetramethylene or-CH<sub>2</sub>OCR<sub>8</sub>R<sub>9</sub>O-(R<sub>8</sub> and Rg are alkyl); R<sub>3</sub> is H, alkyl or hydroxyalkyl; R<sub>4</sub> is H or alkyl; R<sub>5</sub> is phenyl, heteroaryl or-(CH<sub>2</sub>)<sub>m</sub>-CHR<sub>10</sub>R<sub>11</sub> (R<sub>10</sub> is H or phenyl, R<sub>11</sub>is phenyl or pyridyl and m is 0 to 2); p is 0 or 1; and q is 2 or 3; the phenyl group or moiety being optionally substituted, and salts thereof show excellent antiallergic activity mainly through 5-lipoxygenase inhibiting activity, antihistamine activity and/or inhibitory activity against chemical mediator release and are useful for treatment of allergic diseases. Processes for their preparation and pharmaceutical compositions containing them are also described.
Patent KR-940005787-B1 (KR)
Inventor: KAWAKAMI SETSUO
IPC: G06F15/16
Filed: 1986-10-29
Granted: 1994-06-23
Abstract: 내용 없음.
Patent KR-930002901-B1 (KR)
Inventor: OMAE TADAYUKI
IPC: C08F2/00
Filed: 1985-11-25
Granted: 1993-04-15
Abstract: 내용 없음.
Patent KR-920008799-B1 (KR)
Title: Arrangement for wireless signal transmission from a rotating body to a stationary receving station
Inventor: ZETTL OTTO
IPC: B23B31/00
Filed: 1987-01-08
Granted: 1992-10-09
Abstract: A rotating body, for example a chuck (10) comprises a sensor (56), a signal processing unit with amplifier and a plurality of transmitting diodes (14) and receiving diodes (16) peripherally spaced in a radial plane, in which also a stationary transceiving station (18) is arranged. The sensor (56) detects special working conditions of a tool clamped in the chuck (10). Signals of sensor (56) are fed to the signal processing unit. Sense commands transmitted from the transceiving station (18) via receiving diodes (16) are processed in the processing unit during rotation of the chuck (10) and corresponding working condition signals are transmitted from the transmitting diodes (14) back to the transceiving station (18).
Patent KR-910005127-B1 (KR)
Inventor: ROYID ERIC H
IPC: B29D30/62
Filed: 1987-01-09
Granted: 1991-07-23
Abstract: 내용 없음.
Patent KR-940010062-B1 (KR)
Inventor: YOKOYAMA YUTAKA
IPC: H01G9/022
Filed: 1987-01-24
Granted: 1994-10-21
Abstract: 내용 없음.
Patent KR-920002413-B1 (KR)
Inventor: BOUSQUET BERNARD
IPC: C23G1/08
Filed: 1987-02-14
Granted: 1992-03-23
Abstract: 내용 없음.
Patent KR-910008592-B1 (KR)
Inventor: SESANO FRANCO
IPC: B29C67/20
Filed: 1987-03-20
Granted: 1991-10-19
Abstract: 내용 없음.
Patent KR-950005857-B1 (KR)
Title: Electromagnetic deflection unit
Inventor: OSSEYRAN ANWAR
IPC: H01J29/76
Filed: 1987-04-11
Granted: 1995-05-31
Abstract: The electromagnetic deflection unit has a support (4) with a flange (8) at its narrow end (5), which has a tangential groove into which merge radial grooves (14). Two sets of deflection coils (18,19) are wound directly onto the support (4). Their turns traverse radial grooves (14). Thence, turns of a set of deflection coils (18) are bent into a tangential groove. The radial grooves (14) have longitudinally extending portions (16), which are filled by the turns traversing them. The bottom portion (20) of the tangential groove lies on the surface of an oval cylinder. The deflection unit has a high sensitivity, a large axial sliding space and large modulation possibilities.
Patent KR-950007192-B1 (KR)
Inventor: MEERSHOEK HANS
IPC: H01J29/76
Filed: 1987-06-08
Granted: 1995-07-03
Abstract: 내용 없음.
Patent KR-900001425-B1 (KR)
Title: Overedge stich type and making method
Inventor: CONTI ROBERTO
IPC: D05B1/18
Filed: 1987-07-28
Granted: 1990-03-09
Abstract: Overedge stitch type for sewing a workpiece edge (117) extending parallel to the direction of advance is formed from two needle threads (98,99) and one looper thread (100) and comprises loops (115,116) of the two needle threads that are arranged in the workpiece at a distance from the edge and pass through loops (118) of the looper thread arranged transversely relative to the edge on the needle entry side of the workpiece.  The loops of the needle threads on the needle exit side are drawn to the edge of the workpiece where they are interlaced with a following loop of the looper thread which itself extends as far as the following entry points of the needles into the workpiece.
Patent KR-930001281-B1 (KR)
Inventor: MARCHANT IAN M
IPC: E01B9/66
Filed: 1987-08-27
Granted: 1993-02-25
Abstract: 내용 없음.
Patent KR-910003371-B1 (KR)
Title: Digital video data synchronizing detecting circuit for digital audio tape recorder
Inventor: CHUNG IL-SUK
IPC: G11B20/10
Filed: 1987-12-04
Granted: 1991-05-28
Abstract: A  circuit  for  detecting  a  synchronizing  pulse  from  a reproducing signal on a digital audio tape  to  separate  a  video signal from the reproducing signal, includes a synchronizing pulse detecting means (1), a first  synchronizing  data  deciding  means (10),  a  second  synchronizing  data  deciding  means   (20),   a synchronizing  data  duration  generating  means  (30),  a   first synchronizing data counter (40), a counter enable circuit (60),  a second  synchronizing  data  counter  (50),   first   and   second comparators (70)(80), an adder (90),  an  enable  switching  means (100), and a demultiplexer (110).
Patent KR-900005253-B1 (KR)
Title: The correction mechanism for an analog timepiece
Inventor: SHOJI MASARU
IPC: G04B13/02
Filed: 1988-03-11
Granted: 1990-07-21
Abstract: When an operation member (17) is moved in its axial direction, a pinion (18) provided on the operation member is brought into mesh with a gear which is normally rotated in an interlocked relation to hands. When the opertion membr is turned in this state, the torque is transmitted via the pinion and gear to the hands for time-setting. The pinion and gear (19) are made of synthetic resins, and the pinion is made of a resin material having higher flexibility than the resin material of the gear.
Patent KR-910002040-B1 (KR)
Title: Semiconductor memory device and manufacture thereof
Inventor: KANG TAE-KOO
IPC: H01L27/108
Filed: 1988-03-17
Granted: 1991-03-30
Abstract: The method for  preventing  a  short  between  the  conductor connecting a switching transistor to a capacitor and the conductor for the gate of switching transistor, comprises the steps: forming a first trench (4) with thick insulating film  (5)  and  a  second trench (6) with thin insulating film (8);  filling  a  polysilicon (9) into the first and second trenches (4,6) to form  a  capacitor and etching the upside of the thick insulating film (5); filling a polysilicon (11)  therein  and  planarizing  the  surface  of  the substrate; and forming the source and drain  region  (18)  of  the transistor connected through the  side  wall  of  the  polysilicon (11).
Patent KR-0134382-B1 (KR)
Inventor: RABINZOHN PATRICK D
IPC: H01L29/47
Filed: 1988-03-23
Granted: 1998-04-20
Abstract: 내용 없음.
Patent KR-960016468-B1 (KR)
Inventor: RODE KLAUS
IPC: G03F7/027
Filed: 1988-03-26
Granted: 1996-12-12
Abstract: 요약없음
Patent KR-910004335-B1 (KR)
Inventor: ASHIJAWA GAZHIDE
IPC: C07D501/46
Filed: 1988-07-08
Granted: 1991-06-26
Abstract: 내용 없음.
Patent KR-950010032-B1 (KR)
Title: Tamper-evident structures
Inventor: PAUL SMITH
IPC: B65D55/02
Filed: 1988-08-10
Granted: 1995-09-06
Abstract: The invention relates to a laminated tamper-evident structure which exhibits an irreversible colour change upon delamination. The structure includes a laminate of at least two layers (10,12) capable of generating a colour by a light interference and absorption phenomenon that requires direct and intimate contact between an adjacent two of the layers. The strength of attachment among the layers of the laminate is such that the laminate can be uniformly and reliably peeled apart at the interface between the adjacent two layers. An overlying flexible strip (14) of transparent or translucent material is adhered to the laminate to facilitate the peeling operation. Upon peeling apart the laminate, the generated colour is irreversibly lost, thus providing evidence that the structure has been tampered with. The structure can be incorporated into a variety of closable articles or products to provide evidence of opening or tampering.
Patent KR-970001188-B1 (KR)
Inventor: VAN DIJK NICOLAAS
IPC: B01J29/14
Filed: 1988-09-27
Granted: 1997-01-29
Abstract: 내용없음.
Patent KR-950000912-B1 (KR)
Inventor: ROSENAU WILLY
IPC: F02B3/06
Filed: 1987-01-14
Granted: 1995-02-03
Abstract: 내용 없음.
Patent KR-970007248-B1 (KR)
Title: Magnetic recording media and servo system using the same
Inventor: VERNON FORD E
IPC: G11B5/58
Filed: 1987-08-17
Granted: 1997-05-07
Abstract: Magnetic recording media, and magnetic recording systems using such media, are disclosed which incorporate a light-transmitting optical grating at least substantially coextensive with the magnetic recording area. A second light-transmitting optical grating is associated with the magnetic transducer or read/write head. A moire pattern is produced by light transmitted through both optical gratings, and changes in the moire pattern resulting from changes in the alignment of the optical gratings resulting from movement of the read/write head relative to the media are utilized to provide servo information to keep the magnetic transducer aligned with the magnetic track. Higher magnetic recording capacities may be obtained using such media and systems, since none of the magnetic recording area is used for servo information.
Patent KR-920010952-B1 (KR)
Title: Circuit and method of controlling operand buffer memory in data processing system
Inventor: MULER OTTO
IPC: G06F9/38
Filed: 1989-01-25
Granted: 1992-12-24
Abstract: A method for controlling an instruction buffer (IBUF) in a data processing system comprising a main memory (MEM) with relatively great access time. 
<??>The program run time is to be shortened in that the main memory accesses for instructions are reduced. 
<??>An instruction circuit (PFU) contains a circuit arrangement in which branch addresses of a branch instruction are in each case checked for their existence in a current address area of the instruction buffer (IBUF) whereupon, if necessary, the program branches to the instruction located there. A loading of the instruction buffer (IBUF) can be controlled by program. An address pipeline (APL) is included in the address area check and appropriately controlled. 
<??>The instruction buffer (IBUF), the instruction loading circuit (PFU), the address pipeline (APL) and a processor can be manufactured as one integrated circuit. Control instructions for this circuit can be inserted by compiler programs. 
<IMAGE>
Patent KR-910003969-B1 (KR)
Inventor: ITTO HIROYUKKI
IPC: B01J8/34
Filed: 1989-02-28
Granted: 1991-06-17
Abstract: 내용 없음.
Patent KR-970007198-B1 (KR)
Inventor: JONGEWAARD SUSAN K
IPC: B41M5/26
Filed: 1989-05-11
Granted: 1997-05-07
Abstract: 내용없음
Patent KR-0146048-B1 (KR)
Inventor: KANGAS LANI S
IPC: C08G18/12
Filed: 1989-06-01
Granted: 1998-08-17
Abstract: 내용없슴.
Patent KR-920003709-B1 (KR)
Title: Method of manufacturing thin film of high-temperature super conductor
Inventor: JE JEONG-HO
IPC: H01L39/12
Filed: 1989-06-02
Granted: 1992-05-09
Abstract: In methods for high temperature super conductive  thin  film, it  is characterized  by  following  processes;   (1)   inserting Y-Ba-Cu-O sectioned  thin  film,  which  is  deposited   by   the implementation of sputtering at  room  temperature,  and  a  mixed powder of Y1Ba2Cu3O, BaO and CuO, in which the mixing ratio of  Ba and Cu is same and the amount of them is not less than the  amount needed for thermodynamic equilibrium with the vapor pressure of Ba and Cu in thin film, to furnace for heat  treatmens;  (2)  heating them to 800-900 deg.C at the rate of 3-5 deg.C/min in the flow  of oxygen; (3) after stopping the flow of oxygen, maintaining them to fully crystallize at 800-900  deg.C;  (4)  after  crystallization, cooling them  down  the  room  temperature  at  the  rate  of  1-3 deg.C/min in the flow of oxygen.
Patent KR-950013204-B1 (KR)
Inventor: POLLAK ROBERT R
IPC: F02C9/54
Filed: 1989-09-19
Granted: 1995-10-25
Abstract: 내용 없음.
Patent KR-920009584-B1 (KR)
Inventor: EDAMURA KAORU
IPC: F24C7/02
Filed: 1989-10-27
Granted: 1992-10-19
Abstract: 내용 없음.
Patent KR-940006209-B1 (KR)
Inventor: SAKAMOTO KIICHI
IPC: G03F1/20
Filed: 1989-11-02
Granted: 1994-07-11
Abstract: 내용 없음.
Patent KR-930001658-B1 (KR)
Inventor: YAMAMOTO TADASHI
IPC: H01L27/04
Filed: 1989-12-22
Granted: 1993-03-08
Abstract: 내용 없음.