baber/WOPTO huggingface dataset:
Patent KR-860001531-B1 (KR)
Title: Preparation of amorphous ultra-high-speed-spun polyethylene terephthalate yarn for texturing
Inventor: VASSILATOS GEORGE
IPC: D01D5/088
Filed: 1983-03-16
Granted: 1986-10-02
Abstract: A process for preparing oriented amorphous polyethylene terephthalate yarns for false-twist texturing comprises spinning at min. 5000 m/min winding speed, and quenching by a liq. located at such distance from the spinneret that the boil-off shrinkage of the quenched filaments is 45% min. Pref. the spinning speed is 5500 m/min. The amorphous nature of the spun yarn is maintained by liq. quenching as opposed to air quenching. Pref. false-twisting of the feed yarn is done with simultaneous draw-texturing at 1.01-1.2 draw ratio.
Patent KR-840001013-B1 (KR)
Title: Apparatus for filling up lighting powder
Inventor: LEE JUN-WUNG
IPC: F42B4/30
Filed: 1983-05-24
Granted: 1984-07-19
Abstract: An appts. for filling-up lighting powders was manufd. A pressing rod (18) was installed in reciprocaring equipment, and an oil-pressure cylinder (1) having a stroke of half the filling heights and a pressure control valve (34) were employed to adjust the filling pressure so that the distance and filling pressure between the pressing plate (17) and the top surface of lighting powders remained constant. The required filling length was obtained by adjusting the length of (18) and filling it two times. Rotation of the powder cylinder was stopped by slip belt rolls when (17) pressed the lighting powders.
Patent KR-840001841-B1 (KR)
Title: Process for preparing styryl compounds
Inventor: NISHIKURI MASAO
IPC: D06P1/14
Filed: 1983-07-30
Granted: 1984-10-22
Abstract: Styryl compds. of formula (I) are prepd. by reacting compds. of formula (III) with malonic acid nitriles. X1 is halogen or lower alkyl or alkoxy. X2, Y1, and Y2 are H, halogen, or lower alkyl or alkoxy, respectively. R1 and R3 are unsubstd. or substd. alkyl, respectively. R2 is straight- or side-chained C3-10 alkylene or hydrocarbon ring-contg. alkylene.
Patent KR-860002212-B1 (KR)
Title: Output amplifer for active reduction protecting circuit
Inventor: JUNGKER REINER
IPC: H04M1/60
Filed: 1983-12-01
Granted: 1986-12-31
Abstract: This invention concerns a noise dampening circuit for the purpose of preventing deterioration of audio sensitivity when a noise signal generated in the electrical transmission line flows into the circuit with a constant frequency from outside. One merit of this circuit is that the primary winding sets up the output of a power amplifier, and then the secondary winding sends every signal to the electrical transmission line consequently the effects of noise region which bring about noise signal in the electrical transmission used telephone system are dampled. In order to connect the power amplifier the magnetization part of connector consists of a shell so as to protect the cable.
Patent KR-920004675-B1 (KR)
Inventor: LAIMER FREIDRICH
IPC: C21C5/44
Filed: 1984-12-26
Granted: 1992-06-13
Abstract: 내용 없음.
Patent KR-920000198-B1 (KR)
Title: Curable epoxy resin composition
Inventor: KOHLI DALIP K
IPC: C07D295/20
Filed: 1985-02-08
Granted: 1992-01-10
Abstract: Curable compositions comprising substituted bisurea catalyzed epoxide prepolymers alone, or with aromatic polyamine curing agents, alone, or in further combination with reinforcements, e.g., graphite fibers, and optionally modified with second resins are disclosed. The cured resin fiber matrix compositions exhibit high toughness combined with excellent hot wet strength.
Patent KR-920002685-B1 (KR)
Inventor: BLOMQVIST ERIK M
IPC: H02G3/22
Filed: 1985-03-23
Granted: 1992-03-31
Abstract: 내용 없음.
Patent KR-900001343-B1 (KR)
Title: Cold forging method of tools
Inventor: KANG BONG-SUK
IPC: B21J5/12
Filed: 1985-06-14
Granted: 1990-03-08
Abstract: The cold forging method of tools is as follows.  A continuous steel strip (3) with a predetermined thickness and width is successively cut into a base part (4).  The base part is forged, under the compression deformation within 20% and the bending deformation within 60 deg., in the shape of a tool (5) by successive operations of a die set (1,2).
Patent KR-910008698-B1 (KR)
Inventor: OHARA SIGEZOU
IPC: B65D1/28
Filed: 1985-08-23
Granted: 1991-10-19
Abstract: 내용 없음.
Patent KR-900000773-B1 (KR)
Title: Hydrophilized membrane of porous hydrophobic material and process for preparing the same
Inventor: YAMAMORI HISAYOSHI
IPC: B01D67/00
Filed: 1985-09-16
Granted: 1990-02-16
Abstract: A hydrophilic, water permeable, microporous membrane made of a hydrophobic material has micropores therethrough.  The hydrophilic membrane is produced by coating at least a portion of the surface of the membrane with a propylene glycol monofatty acid ester as a hydrophilizing agent, which is solid at about 20 ≰C and substantially insoluble in water.
Patent KR-910004929-B1 (KR)
Inventor: HARADA TSUTOMU
IPC: G07F13/06
Filed: 1985-12-03
Granted: 1991-07-18
Abstract: 내용 없음.
Patent KR-870001248-B1 (KR)
Title: Preparation process of n-methyl-2,4-dinitro-n-phenyl-6-(trifluoromethyl)-diphenyl amine
Inventor: BIGGS WILLIAM SCOTT
IPC: C07C209/00
Filed: 1986-03-27
Granted: 1987-06-29
Abstract: N-methyl-2,4-dinitro-N-phenyl-6-(trifluoromethyl)-diphenyl amine is prepd. for use as a synthetic intermediate of N-methyl diphenyl amine, which is useful as a rat poison.  2-chlone-3, 5- dinitrobenzotrifluoride is treated with fluorizing agent in N, N- dimethyl formamide and pyridine to give 2-fluoro-3,5- dinitrobenzotrifluroide.  2-fluoro-3,5-dinitrobenzotrifluoride is reacted with N-methyl aniline to give the title compd..
Patent KR-910007330-B1 (KR)
Inventor: MCGLASHEN JAMES N
IPC: B60C13/00
Filed: 1986-04-08
Granted: 1991-09-25
Abstract: 내용 없음.
Patent KR-940001377-B1 (KR)
Title: Disposable absorbent articles
Inventor: ZIMMER ROGER E
IPC: A61F13/49
Filed: 1986-05-15
Granted: 1994-02-21
Abstract: Disposable absorbent articles having an ion-exchanging topsheet are disclosed. By using topsheets which release protons upon exposure to body fluids, absorbent articles such as diapers can be realized which are effective for absorbing discharged body waste and which also are effective for lowering skin pH within the acid range. Lowering of skin pH to values within the range of from about 3.0 to 5.5, can serve to prevent or reduce diaper rash.
Patent KR-900001631-B1 (KR)
Title: Linear sliding ball bearing
Inventor: TERAMACHI HIROSHI
IPC: F16C29/06
Filed: 1986-05-27
Granted: 1990-03-17
Abstract: The linear sliding ball bearing has a ball feeding portion whose width becomes gradually smaller.  It is adapted to feed balls from a loaded region to the unloaded region of an endless track formed on the side of a bearing body, or from this unloaded region to the loaded region.  The ball feeding portion is formed at both ends of an elongated hole in the longitudinal direction which is formed in a ball retainer.  The circulation of the balls circulating between the loaded and unloaded regions is effected smoothly by virture of this ball-feeding portion.
Patent KR-900002605-B1 (KR)
Title: Sudio signal recording and playing mute mode logic circuit
Inventor: SHIN MYUNG-CHUL
IPC: G11B5/027
Filed: 1986-07-21
Granted: 1990-04-20
Abstract: The controller for controlling the sound signal process includes a comparator (2) transmitting different logic level signals at recording or reproducing mode, a mute comparator (3) transmitting mute control signal after comparating the mute mode adjusting voltage with the reference voltage, a selecting ciccuit (4) selecting the reproducing or recording mode according to the logic level of the comparator (2), a reproduction adjusting circuit (5) transmitting signal for driving the reproduction amplifier as well as controlling the reproduction line, and a record adjusting circuit (6) transmitting signal for controlling the record amplifier and record line.
Patent KR-890003614-B1 (KR)
Title: Method for the with drawal of polyester film for waste magnetic tape
Inventor: LEE HONG-KYUN
IPC: B29B17/00
Filed: 1986-08-18
Granted: 1989-09-28
Abstract: A method for recovering polyester film without degradation of a mechanical property comprises: (A) immersing the strip of waste magnetic recording tape (a) in 2-50% NaOH solution to loosen magnetic material (M) from the polyester film (a'); (B) passing the tape between a roughed roller (6), which rotates oppositely to the tape, and a support roller (5) to separate the magnetic material from the tape; (C) adjusting to pH 6.5-7.5 with 2-5% H2SO4 (4); and (D) washing (7), dewatering (8) and drying and winding the polyester film with a take-up roller (10).
Patent KR-900002633-B1 (KR)
Title: Method for controlling time division multiplex communication
Inventor: INOUE YOSHIHIRO
IPC: H04J3/17
Filed: 1986-09-17
Granted: 1990-04-21
Abstract: The system is for performing the package communication of information related to the system by dividing one frame into plural slots, allocating each slot to plural terminals connected to a network, and setting at least one slot for multiple address communication for collective transmission of common information to each terminal.
Patent KR-900006248-B1 (KR)
Title: Movement converter for use in an engine and the like
Inventor: KOROSUE AKIRA
IPC: F02B1/04
Filed: 1986-11-15
Granted: 1990-08-27
Abstract: The transmission consists of four piston units in cruciform pattern, whose pistons are joined by connectors of equal length and whose two- way movement is converted by drive elements into rotation of the transmission shaft. The four connectors (L1-4)' are joined to their pistons (P1-4) by gudgeon pins (P1-4) and adjoining pins are also interconnected. Two transverse arms (A1,2) movably joined to the centre points of opposite connection pairs, together form a cross and a two-way shaft (1) at the arm intersection is at right angles to them and is drivably joined to a zshaped crank (5) of the rotary transmission shaft (3,4a,4b) enclosed by the slide sleeve bearing (6) which, together with a shaft fitted yoke (2), forms the connection between the shaft and transmission shaft crank.
Patent KR-930002240-B1 (KR)
Inventor: VIVANT GILBERT
IPC: C08G18/79
Filed: 1986-12-09
Granted: 1993-03-27
Abstract: 내용 없음.
Patent KR-880001641-B1 (KR)
Title: Polyester compound fiber's making method
Inventor: LM MU-SAN
IPC: D01F8/14
Filed: 1986-12-18
Granted: 1988-09-03
Abstract: The polyester yarn was prepd. by spinning the mixture of polyester which was prepd. by polymerization of dimethyl terephthalate, metal sulfonate [(I); R, R'= -COOH, -OCOR", -COOR2, COO(CH2)--OH, -O-(CH2)- -[O-(CH2)4- m-OH; m=1-4, R2=C5 lower alkyl, A=trivalent aromatic hydrocarbon, M=alkali metal) and polyethylene glycol, block polyetheramide and homopolyamide.  The result fiber had good fastness and dyeing property.
Patent KR-890003634-B1 (KR)
Title: Electric control apparatus of coal mining work
Inventor: HAN JUNG-HON
IPC: F15B1/02
Filed: 1986-12-31
Granted: 1989-09-28
Abstract: The controller for controlling the oil pressure unit comprises motor controllers (22,23), a selection switch (24) for selecting working or moving state of the machine, a joystick (25) for controlling the moving state, solenoids (26-29) for controlling the wheel driving oil pressure controlled by the joystick (25), a joystick (30) for controlling the boom, solenoids (31-34) for controlling the boom driving oil pressure controlled by the joystick (30), a joystick (35) for controlling the arm, solenoids (36,37) for controlling the oil pressure for moving the arms controlled by the joystick (35), a driving unit (38) for head drill, and a solenoid (40) for driving the drain valve providing the oil pressure during moving or working time.
Patent KR-900004486-B1 (KR)
Title: Sheet moulding compound and process for it
Inventor: VANGAZE RENE R E
IPC: B32B27/20
Filed: 1987-02-26
Granted: 1990-06-28
Abstract: A sheet moulding cpd. has a basic layer (3) consisting of thermosetting material, fillers, fibres and customary additives. At least one side has two layers, an intermediate layer (2) and a top layer (1). (2) lies against (3) and comprises at least fibre reinforcement and thermosetting material in a partly cured state, and is capable of resisting the shear forces with (1) that occur during moulding. (1) comprises thermosetting material having no fibre reinforcement, which is in a cured state smaller than (2). Pref. the thermosetting materials is unsatd. polyester. Automobile bodywork is mfd. using the sheet moulding cpd.
Patent KR-900000231-B1 (KR)
Title: Long time timer circuits
Inventor: LEE TAE-SOO
IPC: H01H43/00
Filed: 1987-07-31
Granted: 1990-01-23
Abstract: The timer for controlling power includes an initial reset unit (3) for generating a pulse when initial operating time of a voltage regulator and a power relay (10) is stopped, a setting unit (4) for generating a negative pulse when a setting switch (SP1) is pressed, a flip-flop unit (5) having power-on, off modes and timer-on mode which are selected by reset signal and clock signal, a gate unit (6) for generating signal for operating a relay when the flip-flop is power- on mode and for generating a timer driving signal when the flip-flop is timer-on mode, a switching unit (7) for providing power to the timer at timer-on mode.
Patent KR-900004579-B1 (KR)
Title: Colth heating & adhering machine
Inventor: KAMIYA KAZUDAGA
IPC: A41H43/04
Filed: 1987-09-02
Granted: 1990-06-30
Abstract: A apparatus having two endless belts facting each other and carrying in-between two separate cloth sheets for heat-bonding each other is characterized in that a phase control device changes load current to adjust voltage and regulate the temperature for a heater, which is provided with a heat sensor for varying output voltage in response to the variation of ambient temperature.
Patent KR-900008921-B1 (KR)
Inventor: BASHONG LEMI
IPC: H01H13/56
Filed: 1987-10-06
Granted: 1990-12-11
Abstract: 내용 없음.
Patent KR-900003015-B1 (KR)
Title: Process for bee's fodder
Inventor: PARK SANG-GUK
IPC: A23K1/175
Filed: 1987-11-19
Granted: 1990-05-04
Abstract: The method of preparing bee feed comprises (a) admixing 0.01-0.5% 0f salt with sugar and mixing, (b) extracting the above sugar solution in a crystallizer and then centrifuging at high speed, (c) adding lysine solution contatining 1.5-2.5 Kg of lysine and minerals to the above product and dehydro-cooling to produce powder for the bee feed.
Patent KR-960006772-B1 (KR)
Title: Hydraulic system for a toggle type plastic injection molding machine capable of precision coining
Inventor: HERTZER RONALD A
IPC: B29C45/64
Filed: 1987-11-25
Granted: 1996-05-23
Abstract: An improved computer controlled hydraulic system for a conventional toggle-type plastic injection molding machine of the type comprising an injection assembly and a mold clamping assembly. The hydraulic system comprises a first low volume pump and a second high volume pump connected between a reservoir of hydraulic fluid and a pressure and flow control manifold. The output of the pressure and flow control manifold is connected to an injection control manifold, in turn connected to and operating the instrumentalities of the injection assembly. The output of the pressure and flow control manifold is also connected to a clamping control manifold, in turn connected to and operating the cylinder of the clamping assembly. An isolation manifold is connected between the pressure and flow control manifold and the clamping control manifold. A third low volume pump is connected between the reservoir and the isolation manifold. The isolation manifold is also connected to the reservoir. When unactuated, the isolation manifold connects the output of the pressure and flow control manifold directly to the clamping control manifold and recirculates the third pump to reservoir, when the machine is to perform sequential cycles such as conventional injection molding or conventional coining. When actuated, the isolation manifold disconnects the clamping manifold from the pressure and flow control manifold and connects the third pump to the clamping control manifold, enabling the machine to perform a coining cycle with individual and simultaneous clamping and injection control, and precise and repeatable position and speed control of the coining step.
Patent KR-930004377-B1 (KR)
Title: Heat-emitting temperature display method
Inventor: KANG CHANG-SU
IPC: G03G15/20
Filed: 1987-11-30
Granted: 1993-05-26
Abstract: The method for displaying the measured heating temperature of the heater set on the machinary, such as  a  laser  printer  or  a electronic copier is executed by: calculating the inputted voltage of the analog signal input terminal which changes with the heating temperature of the  heater  in  the  case  of  inputting  the  low electric  potential  to  the  display   signal   input   terminal; outputting the fixed data to  the  data  signal  output  terminals (DA1,DA2) according to the calculated result; displaying the  data on the segments (2,3) by outputting the low electric potential  to the data signal output terminal for a time.
Patent KR-910001970-B1 (KR)
Title: Method for reading omcr sheets of optical system
Inventor: PARK KI-WOONG
IPC: G06K7/10
Filed: 1987-12-30
Granted: 1991-03-30
Abstract: The method sets the functions of the system interlocked  with an optical system using the OMCR sheet. The mark positions on  the OMCR sheet are detected accurately by using  the  row  and  column reference marks for decreasing the reading error. The bar mark and the  7-segment  marks   of   the   OMCR   sheet   are   recognized simultaneously. The reader includes a scanner (20) or scanning the input sheet line by line to generate the binary code according  to the gray level of the line, a line buffer  (40)  for  storing  the binary coded data, an OMCR recognizer (50) for processing the data with the stored program, a memory  (60)  for  recording  the  data processed by the OMCR recognizer (50),  and  a  display  (80)  for displaying the error message when the  results  processed  by  the OMCR recognizer show discrapancy.
Patent KR-910004805-B1 (KR)
Inventor: HOEGBERG BERTIL G
IPC: H04L25/45
Filed: 1987-03-05
Granted: 1991-07-13
Abstract: 내용 없음.
Patent KR-910005559-B1 (KR)
Title: Rotary head drum device for vcr
Inventor: KIM SOO-KYUNG
IPC: G11B5/52
Filed: 1988-01-30
Granted: 1991-07-31
Abstract: The head drum of VCR comprises a shaft  (1)  forming  grooves (1a,1a',1b, 1b',1c) on the circumference surface,  an  upper  drum (4) including rotary heads (2,2') and fixed on  a  flange  (3),  a lower drum (5) fixed on a motor stator (7), a  motor  rotor  (13), and a motor magnet (14). The shaft is formed to tube type at which a number of holes (11,11') for flowing the air are  there  at  the middle position  of  the  grooves.  The  air  pressure  difference between the shaft and a housing (6) is occured by rotation of  the shaft. Then the outer air flows into the grooves and holes so that enough air increasing the lubrication effect  of  the  bearing  is supplied between the shaft and housing.
Patent KR-970008639-B1 (KR)
Inventor: MAKABE DAI
IPC: G10H1/36
Filed: 1988-02-10
Granted: 1997-05-27
Abstract: 없음
Patent KR-900008723-B1 (KR)
Inventor: BROADDUS CLARKE R
IPC: C08G63/68
Filed: 1988-02-10
Granted: 1990-11-27
Abstract: 내용 없음.
Patent KR-920010338-B1 (KR)
Inventor: DANIAI DAKAYOSHI
IPC: G06F9/26
Filed: 1988-05-04
Granted: 1992-11-27
Abstract: 내용 없음.
Patent KR-920005521-B1 (KR)
Inventor: BRAULT ALFRED F
IPC: B29C41/22
Filed: 1988-07-16
Granted: 1992-07-06
Abstract: 내용없음.
Patent KR-930006540-B1 (KR)
Inventor: HEYNES STEEVE J
IPC: H04N7/025
Filed: 1988-09-07
Granted: 1993-07-16
Abstract: 내용 없음.
Patent KR-910006148-B1 (KR)
Inventor: KUBO OSAMU
IPC: G11B5/706
Filed: 1988-09-29
Granted: 1991-08-16
Abstract: 내용 없음.
Patent KR-910005887-B1 (KR)
Title: Drug-monoclonal antibody conjugates
Inventor: SENTER PETER D
IPC: A61K47/48
Filed: 1988-11-22
Granted: 1991-08-06
Abstract: There is disclosed a drug-monoclonal antibody conjugate wherein the antibody is linked to a antitumor drug using disulfide benzyl carbamate or carbonate as the linker. The conjugate is used for delivering an active antitumor drug to the site of tumor cells in a mammal by administering the drug-monoclonal antibody conjugate.
Patent KR-0157970-B1 (KR)
Inventor: PACIONE JOSEPH ROCCO
IPC: E04F13/24
Filed: 1989-01-26
Granted: 1999-01-15
Abstract: 내용 없음
Patent KR-920005538-B1 (KR)
Inventor: TANAKA SAKAE
IPC: H01L21/84
Filed: 1989-02-03
Granted: 1992-07-06
Abstract: 내용 없음.
Patent KR-910005531-B1 (KR)
Title: Apparatus for transmitting data fast and for stabilizing supply power level
Inventor: HUH CHAN
IPC: H04L25/02
Filed: 1989-02-23
Granted: 1991-07-31
Abstract: The circuit performs short-distance data transmission in high speed stable power level as well as long-distance transmission.  A data transmission input signal drives a N channel MOS Tr (N3)  for buffer through a P (P1) and a N (N2) channel MOS  Trs:  in  first, and a N channel (N1) Trs. passed through inverters (I1-2) so  that the short- distance data stransmission with stable power  level  is achieved by the difference of the switching time of Trs. (N3-4).
Patent KR-0139317-B1 (KR)
Inventor: HOSAKA YASUO
IPC: G03G15/16
Filed: 1989-04-28
Granted: 1998-06-15
Abstract: 내용없음.
Patent KR-960007006-B1 (KR)
Inventor: ICHIKAWA KUNIHIKO
IPC: B32B37/14
Filed: 1989-08-30
Granted: 1996-05-27
Abstract: 내용 없음.
Patent KR-920000030-B1 (KR)
Inventor: DAVID DANALD J
IPC: C08L29/14
Filed: 1989-11-06
Granted: 1992-01-06
Abstract: 내용 없음.
Patent KR-0125579-B1 (KR)
Inventor: HIRAYAMA TOMOSHI
IPC: G06Q99/00
Filed: 1989-11-23
Granted: 1998-07-01
Abstract: 내용 없음
Patent KR-920010183-B1 (KR)
Inventor: YAMAGUCHI AKIRA
IPC: G06F7/535
Filed: 1989-12-08
Granted: 1992-11-19
Abstract: 내용 없음.
Patent KR-920006965-B1 (KR)
Title: Disconnecting display circuit
Inventor: CHOE SANG-HYON
IPC: G01R31/08
Filed: 1989-12-27
Granted: 1992-08-22
Abstract: A circuit is for detecting the output  pulse  interval  of  a sensor and for indicating the disconnection of the wire  according to the variation of the pulse interval. The  circuit  comprises  a sensing section (2), a FM detecting circuit (10) for detecting the output pulse  period  of  the  sensing  section,   a   monostable multivibrator (20) for producing the pulse in which the  width  of the pulse is controlled  by  the  externalsignal,  and  a  driving circuit (4) for driving the indicating lamp.
Patent KR-970003049-B1 (KR)
Inventor: NAKAYASU TOSHIRO
IPC: C07K9/00
Filed: 1988-09-02
Granted: 1997-03-14
Abstract: 내용없음.
Patent KR-0143774-B1 (KR)
Inventor: MARJOLLET JACQUES
IPC: E05B17/04
Filed: 1990-01-06
Granted: 1998-08-17
Abstract: 발전 및/또는 증기 발생 설비의 저압단 및 열교환기의 가열기에서 발전 및/또는 증기 발생 설비의 포화 증기 터빈의 고압단의 증기 파이프가 침식 및/또는 부식되는 것을 방지 하는 방법 및 장치에 있어서, 고압단의 습증기 출구 및 오프테이크 내에 보유된 물의 대부분을 원심 장치에 의해 분리한다.  원심 장치에 의해 부분 건조된 증기의 제1부분은 과열되거나 또는 최종 건조된 다음 터빈의 저압단 부분으로 공급하고 부분 건조된 증기의 나머지 부분은 가열기로 공급한다.  증기의 제1부분 및 나머지 부분을 원심 장치에 의해 함께 건조 시킨 후 상기 나머지 부분을 원심 장치로 최종 건조한다.
Patent KR-920002461-B1 (KR)
Inventor: MATTSON CHRISTOPHER T
IPC: G03B17/30
Filed: 1990-03-07
Granted: 1992-03-24
Abstract: 내용 없음.
Patent KR-920000177-B1 (KR)
Inventor: YAKI DOSIHARU
IPC: C08F259/08
Filed: 1990-03-30
Granted: 1992-01-09
Abstract: 내용 없음.
Patent KR-930002516-B1 (KR)
Inventor: HARAFUJI KENJI
IPC: G03F1/00
Filed: 1990-04-04
Granted: 1993-04-03
Abstract: 내용 없음.
Patent KR-970011949-B1 (KR)
Inventor: MCMANUS MICHAEL J
IPC: B29C48/09
Filed: 1990-04-27
Granted: 1997-08-08
Abstract: 없음