baber/WOPTO huggingface dataset:
Patent KR-840001707-B1 (KR)
Title: Process for the preparation of imidazole derivatives
Inventor: CROSS PETER EDWARD
IPC: A61P43/00
Filed: 1980-01-19
Granted: 1984-10-16
Abstract: Title compds. (I; R1=H, C1-4 lower alkyl, C1-4 lower alkoxy, halogen; Y=(CH2)n; n=1-4; Z=CO2R2, CONHR3, CN, tetrazoly; R2=H, C1-4 alkyl; R3=h, C1-4 alkyl) useful in the inhibition of thromoboxane syntheetase, were prepd. by the reaction of III and the reaction products obtained from II with alkali metal hydride. Thus, 4.95g 2-dimethylaminoethyl-4-methylphenol reacted with 2.04g imidazole, and the product was treted NaH(1.50g) and ethylbromo0avetate(5.04g) at room temp for 2 hr to give 5.3g 2-(l-imidazolymethyl)-4-methyl-phenoxyacetic ethyl ester.
Patent KR-840000104-B1 (KR)
Title: Process for preparing substituted pyrido (1,2-a) pyrimidines
Inventor: DORIA GIANFEDERICO
IPC: A23L7/152
Filed: 1980-05-07
Granted: 1984-02-11
Abstract: Pyridopyrimidines I (A=bond, CH2; R1=H, C1˜C12 alkyl,-NR4R5; R2=H, C1˜C6 alkyl, C3˜C4 alkenyl; R3=optionally substituted furyl, thienyl, pyridyl; R4, R5 independently=H, C1˜C10 alky;, pyrrolidinyl, piperidino, morpholino) were prepd.  Thus, Me 6-aminonicotinate was treated with MeCOCHPrCO2Et to give Me2-methyl-3-propyl-4-oxo-4H-pyrido[1,2-a pyrimidine-7 car- ! boxylate, which was treated with BzH in the presence of NaOMe to give trans-I(A-bond; R1=H; R2=Pr; R3=Ph; II). Esterification of II, methylation, and ester hydrolysis gave trans-I (A-CH2; R1=H; R2=Pr; R3=Ph; III). II and III had Ed50 in the passive cutaneous anaphylaxis test of 2.16 and 2.34mg/kg orally, resp.
Patent KR-830001973-B1 (KR)
Title: "오픈엔드"(Open End)정방기에 있어서의 제진장치(除塵裝置)
Filed: 1980-05-09
Granted: 1983-09-29
Abstract: 내용 없음.
Patent KR-840000387-B1 (KR)
Title: Non-linear processing of video image vertical detail information
Inventor: FUHRER JACKS
IPC: B27G19/10
Filed: 1980-05-12
Granted: 1984-03-27
Abstract: In a color television receiver that uses a comb filter to separate luminance and chrominance components of the color television signal, a network is included for selectively restoring, enhancing, and paring vertical image datail to preserve and enhance vertical resolution in the luminance content of a displayed image.  The comb filter provides a combed luminance signal output, from which the vertical detail signal information has been unavoidably deleted, and a combed chrominance signal output, that includes signal frequency components representative of the deleted detail signal.
Patent KR-820001310-B1 (KR)
Title: Mehtod for cultivating chrollera
Inventor: RYU E
IPC: C12N1/12
Filed: 1980-11-07
Granted: 1982-07-21
Abstract: A newly continuous culture system to produce concd. chlorella cultures is given.  The cultures being performed in the heterotrophic condition contg. saccharolytic enzymes (1.5-2.5%), O3 gases are sprayed over the culture medium under light.  A highly sterilizing effect with effective volume of O3 gases may be continuously obtained and increased the growth rate in this system.  Heterotrophic medium contg. saccharolytic enzyme (1.5-2.5%) resulted remarkably in the proliferation of chlorella by activating the absorption of nutrients.  The harvesting wt. of chlorella on these culture medium is greater than on the Heterotrophic medium.
Patent KR-840001716-B1 (KR)
Title: Method for inhibiting polymerization of conjugated dienes
Inventor: HOKARI HIROSHI
IPC: C07C11/20
Filed: 1980-12-05
Granted: 1984-10-17
Abstract: High-purity conjugated dienes are produced by an extractive distillation of conjugated diene-contg. hydrocarbon compds. using an extracting solvent of dimethyl formanide. A polymerization inhibitor is used to prevent the polymerization of conjugated dienes during the distilling process. For that purpose, 0.01-2 wt.% furfural and 0.5-10wt.% condensed polymer of furffural are added to the extracting solvent.
Patent KR-850001553-B1 (KR)
Title: Compositions for steel-harded carbide microstructured tools
Inventor: MAKRIDES NICHOLAS
IPC: B22F7/06
Filed: 1981-08-17
Granted: 1985-10-17
Abstract: A steel-hard, carbide-composite, wear-resistant body is produced by blending 20-70 wt.% steel-forming powders with 30-80 wt.% of hard carbide particles (I) of particle size 2.5-400 mesh; cold pressing to produce a preform; and densifying by high-temp. and high-pressure diffusion bonding and sintering. (I) is selected from hard carbides of W, T, Ta, Nb, Zr, V, Hf composites. The matrix material(25) may be steel and iron, steel and Cu, or steel and nickel. (I) may also be coated with a metal prior to mixing with the steel. Steel-cemented hard-carbide alloys are produced that are free of binary interstitial alloys of Fe and W.
Patent KR-840001529-B1 (KR)
Title: Process for the preparation of zine oxid by dry methode
Inventor: KIM SU-TAI
IPC: C01G9/03
Filed: 1983-02-25
Granted: 1984-10-04
Abstract: Zinc oxide is produced continuously by oxidizing evaporized zinc in a rotary kiln. A molten dross of zinc is supplied to the rotary kiln, which is rotated rapidly and fired with direct flame from a burner. Then, heavy impurities (Fe, Pb, etc.) are separated outward by centrifugal force and the pure zinc melt floats inward. The melt is evaporated during contact with direct flame. The evaporated zinc gas is oxidized in the kiln, and pure zinc oxide is collected by cooling the gas in a blowing chamber.
Patent KR-870001964-B1 (KR)
Title: Stabilization of polycondensation catalysts
Inventor: BERG KURT B
IPC: C08G63/82
Filed: 1983-06-02
Granted: 1987-10-23
Abstract: A catalyst/stabilizer composition is prepd. for synthesizing polyethlene terephthalate.  The composition is composed of stabilizer and polycondenation catalyst.  The polycondensation catalyst contains metals choosen among titanium, zirconium, germainum and tin. The stabilizer is prepd. by reaction of aliphatic epoxide with phosphate.  The produced polyethylene terephthalate has improved stability and color.
Patent KR-840002154-B1 (KR)
Title: A making method of casting in jewel and ring
Inventor: LEE HAE-JIN
IPC: A44C9/00
Filed: 1983-07-18
Granted: 1984-11-24
Abstract: A finger ring-manufg. method uses casting to adhere jewels to the surface of the ring. A model finger ring is formed, which has a penetration hole to hold the jewel. A slop area is created for the jewel to adhere to and several metal feet are used to press and fix the jewel. Then a mold is cast from the model. This invention allows jewel-containing rings to be mass produced.
Patent KR-940009078-B1 (KR)
Inventor: OHNISHI YOSHIAKI
IPC: G11C11/403
Filed: 1983-08-23
Granted: 1994-09-29
Abstract: 내용 없음.
Patent KR-900000374-B1 (KR)
Title: Method of manufacturing a copolymer of trioxane
Inventor: KASUGA TAKUZO
IPC: C08L59/00
Filed: 1984-06-15
Granted: 1990-01-25
Abstract: A trioxane copolymer with enhanced stability is prepd. by copolymn. of trioxane with a comonomer in the presence of a cation active cat. and a substd. phenol, chracterised in that the copolymn. is carried out in the presence of 0.001-2.0 wt.%, based on the total amount of the monomers, of one or more sterically hindered phenols in which phenols become uniformly distributed in the copolymer in course of the polymn., and in that following the polymn., the formed copolymer contg. the distributed phenols is heated to cause melting of the copolymer.
Patent KR-890001460-B1 (KR)
Title: Letter processing apparatus
Inventor: TANIGUCHI HIROKI
IPC: G06F17/28
Filed: 1984-09-14
Granted: 1989-05-03
Abstract: The apparatus outputs the first language and the corresponding second language together as converting the first language into the corresponding second language.  The language processing apparatus is composed of the input (1) part which inputs the first language needed (Korean), the language converting library (2) which remembers the corresponding second language (for example, Chinese character), the conversion instructing part (3), the language converting part (4), the information memory (5), the output for mat selecting part (6), and the output control part (7).
Patent KR-880000980-B1 (KR)
Title: Process for producing chewing gum shaped glutinous rice cake
Inventor: DERA JAWA MASADOSI
IPC: A23G4/10
Filed: 1985-05-24
Granted: 1988-06-10
Abstract: A chewing gum like glutinous rice cake is formulated from gum base, sucrose, glucose, maltose, lactose, dextrin (DE=25), glycerol, amylopectin starch paste (45% moisture), salt, flavorant, and additives (jams, jelly, chocolate, ice cream, etc.).  Thus, a compn. contg. 150 gum base, 200 sucrose, 147 glucose, 73 amylopectin starch paste, 5 glycerol and 3 parts flavorant is cast into a mould, stuffed with a additive (bean-jam), and shaped into a ricecake-like gum using a common stampping method.  The amylopecting starch paste contains 17 rice cake flour, 37.5 sucrose, 0.5 egg white, and 45 wt. parts water.
Patent KR-900008207-B1 (KR)
Title: Semiconductor memory device
Inventor: DAKEUCHI YUKIO
IPC: H01L27/10
Filed: 1985-08-30
Granted: 1990-11-05
Abstract: The semiconductor memory device includes a memory cell array comprised of several memory cells each having a single transfer transistor and a single capacitor and a peripheral circuit including several drive transistors and adapted to drive the memory cell. The source and drain regions of the transfer resistor have an impurity concentration lower in level than that of the source and drain regions of the drive transistor.
Patent KR-880002132-B1 (KR)
Title: Variable coaxial cavity filter
Inventor: KWAG WOO-YONG
IPC: H01P1/202
Filed: 1986-03-15
Granted: 1988-10-15
Abstract: The filter used in VHF or UHF wireless-phones includes fixed and variable plates.  The surface of the variable capacitor plate facing to the fixed plate is varied linearly by turning around the filter shaft, so that the capacitance corresponding to the resonance frequency may be adjusted.  The radius ratio (R) of curvature of the variable plate, pref., is within 4-10, and the distance between the plates is constant.
Patent KR-900004204-B1 (KR)
Title: Process for manufacturing pyrethroid insecticides
Inventor: KOWN YONG-CHIL
IPC: C07C69/74
Filed: 1986-05-10
Granted: 1990-06-18
Abstract: Pyrethroid insecticides of formula R-C(=O)-O-R' are prepd. by (i) reacting org. acid of formula R-C(=O)-OH with a cpd. of formula CH3- C(=O)-X in the presence of pyridine, NEt3 or DMF to give anhydride of formula R-C(=O)-O C(=O)-CH3 and (ii) reacting with alcohol of formula R'-OH in org. solvent i.e. benzene,toluene, n-hexane at 0-150 deg.C. In the formulas, R=(I), R'=(II), X= acetyl, Cl or Br.
Patent KR-930011044-B1 (KR)
Inventor: FUJIMORI KYOICHI
IPC: F02D41/40
Filed: 1986-07-28
Granted: 1993-11-20
Abstract: 내용 없음.
Patent KR-900007185-B1 (KR)
Title: Liposome composition
Inventor: PARK JOHN Y
IPC: A61K9/52
Filed: 1986-08-05
Granted: 1990-09-29
Abstract: A liposome compsn. (A) is made by dispersing, in an aq. medium, (1) liposome-forming material (I); (2) a hydrating agent (II), at mole ratio 1:20-0.05 (esp. 1:2-0.5) relative to (I) and (3) otp. a material (III) being encapsulated. Specified (II) include arginine, homoarginine, gamma-aminobutyric acid, lysine, ornithine (pref. where negatively-charged (I) are used), or glutaminc acid or aspartic acid (pref. where amphipatic (I) are used). (I) are usual phospholipids and/or fatty acids. (I) Spontaneously form very stable liposomes in aq. soln. and have very high capture efficiency.
Patent KR-950013565-B1 (KR)
Inventor: VARIERE JEAN-CLAUDE
IPC: C07D498/14
Filed: 1987-07-08
Granted: 1995-11-09
Abstract: 내용 없음.
Patent KR-900002463-B1 (KR)
Title: Alarm generator using air pressure in case engine oil pressure drop
Inventor: SHIN YOUNG-HO
IPC: F01M1/16
Filed: 1987-10-16
Granted: 1990-04-16
Abstract: A valve unit (2) is provided in a pneumatic circuit comprising an air compressor (5), an air tank (4), a pressure regulator (3).  The valve unit has an air way-in (17), an air wayout (13) at both sides of a body (12), an oil pathway (18) under the body, a piston (15) provided with an air pathway (16) in the body, a coil spring (11) on a piston rod (14), and a guide hole (10) for the piston rod.  When the pressure of oil is standard, the pressure of the oil pushes up the piston so that the pneumatic pressure is not applied to an air buzzer (1), and when the oil pressure is under the standard, the force of the spring moves the piston down to its opening position against the oil pressure.
Patent KR-950010028-B1 (KR)
Inventor: BECHTEL JON H
IPC: G02F1/153
Filed: 1988-02-13
Granted: 1995-09-06
Abstract: 내용 없음.
Patent KR-910005792-B1 (KR)
Inventor: ODA YOSHIYAKI
IPC: H03M13/00
Filed: 1988-02-24
Granted: 1991-08-03
Abstract: 내용 없음.
Patent KR-960009657-B1 (KR)
Inventor: HABER TERRY M
IPC: A61M5/315
Filed: 1988-03-12
Granted: 1996-07-23
Abstract: 요약 없음
Patent KR-910003740-B1 (KR)
Inventor: TAKAO TOSHIHIRO
IPC: C23C14/08
Filed: 1988-05-26
Granted: 1991-06-10
Abstract: 내용 없음.
Patent KR-920009531-B1 (KR)
Inventor: HIHARA MIKIO
IPC: C04B22/04
Filed: 1988-08-31
Granted: 1992-10-19
Abstract: 내용 없음.
Patent KR-910007327-B1 (KR)
Inventor: CHAN C S
IPC: B41J2/16
Filed: 1988-11-16
Granted: 1991-09-25
Abstract: 내용 없음.
Patent KR-960009264-B1 (KR)
Title: Novel cc-1065 analogs
Inventor: KELLY ROBERT C
IPC: C07D235/02
Filed: 1988-08-19
Granted: 1996-07-16
Abstract: 2-Acyl-4,5,8,8a-tetrahydro-4-oxycyclopropan[c]pyrrol(3,2-e) indole derivatives of Formula (I'). The compounds of Formula (I') are useful as uv light absorber substances, as chemical intermediates and as prodrugs of known spirocyclopropylpyrroloindole CC-1065 analogs. Representative Formula (I') compounds have been shown to possess useful ranges of antitumor activity in standard laboratory animal tests.
Patent KR-930005898-B1 (KR)
Inventor: ROTHMAN MICHAEL F
IPC: C22C38/00
Filed: 1989-01-30
Granted: 1993-06-25
Abstract: 내용 없음.
Patent KR-970009714-B1 (KR)
Inventor: YAMADA HIDEO
IPC: A61M5/34
Filed: 1989-03-11
Granted: 1997-06-17
Abstract: 내용없음.
Patent KR-970008160-B1 (KR)
Inventor: BLOCK WAYNE F
IPC: C25F3/14
Filed: 1989-03-24
Granted: 1997-05-21
Abstract: 요약없음
Patent KR-930000484-B1 (KR)
Inventor: MITSUMOTO TOKIGATSU
IPC: H04N19/59
Filed: 1989-05-09
Granted: 1993-01-21
Abstract: 내용 없음.
Patent KR-970001913-B1 (KR)
Inventor: IINO KATSUYOSHI
IPC: A47F3/04
Filed: 1989-07-12
Granted: 1997-02-19
Abstract: 내용 없음.
Patent KR-930006312-B1 (KR)
Inventor: RADEMACHER WERNER
IPC: B65B61/26
Filed: 1989-07-27
Granted: 1993-07-14
Abstract: 내용 없음.
Patent KR-930004114-B1 (KR)
Inventor: MIYAJIMA MOTOSHU
IPC: H01L21/763
Filed: 1989-07-28
Granted: 1993-05-20
Abstract: 내용 없음.
Patent KR-910007486-B1 (KR)
Title: Method of manufacturing screen of color crt
Inventor: LEE JEON-SOO
IPC: H01J9/20
Filed: 1989-09-06
Granted: 1991-09-26
Abstract: A screen film of the  color  cathode  ray  tube  is  mfd.  by inserting an under coating solution contg. polyvinyl  alcohol  and ammonium dichromate into the inner side of the panel, coating  the solution on the inner side of it to a thin thickness  by  rotating the panel, and hardening the both sides  of  the  screen  film  by light-irradiating from the front and back sides of the panel.
Patent KR-920002174-B1 (KR)
Inventor: GUWAHARA NOBUO
IPC: G01N15/05
Filed: 1989-10-20
Granted: 1992-03-19
Abstract: 내용 없음.
Patent KR-920008878-B1 (KR)
Title: Combustion control device for hot water boiler
Inventor: ANDO ATSUSHI
IPC: F23N5/10
Filed: 1989-10-21
Granted: 1992-10-10
Abstract: The device has a reverse-current generating means for flowing the current until the value of electromotive force in thermo power generating  element  is  lower  than  a  certain  level  when  the combustion in burner stops. The device comprises an elctromagnetic safety valve mounted on the passage of gas supplied to the burner; water-pressure response type  valve  for  being  opened  by  water heated by the burner and supplied to the  heat  exchanger;  thermo power generating element near the burner, connected with the  coil of the safety valve.
Patent KR-930010010-B1 (KR)
Inventor: OKATA SADAO
IPC: F16K31/70
Filed: 1989-10-25
Granted: 1993-10-14
Abstract: 내용 없음.
Patent KR-930002029-B1 (KR)
Inventor: MIYAJAWA KATSUTOSHI
IPC: C12P41/00
Filed: 1990-02-19
Granted: 1993-03-22
Abstract: 내용 없음.
Patent KR-920007001-B1 (KR)
Title: Armoured graphite application method and apparatus in brown tube
Inventor: KU SONG-HOE
IPC: H01J9/20
Filed: 1990-04-19
Granted: 1992-08-24
Abstract: The carbon spraying device consists of a stopper to stop  the cathode-ray tube at the proper  position  from  the  conveyor,  an elevation table, a covered room, and  a  sprayer.  The  method  to spray carbon on the surface of a cathode ray  tube  comprises  two processes. In the first process a cathode-ray tube is  picked  out of the conveyor and is put into a covered  room  by  an  elevation table. In the second process a spray gun  turned  by  a  motor  in upper part of the covered room sprays carbon  of  emulsion  phase, rotating around the cathode-ray tube. After that  the  cathode-ray tube is moved again to the conveyor by the elevation table.
Patent KR-920007274-B1 (KR)
Title: Modified phosphor amidite process for producing modified nucleic acid
Inventor: SELIEGER HEINTZ H
IPC: C07H21/04
Filed: 1990-05-21
Granted: 1992-08-29
Abstract: The invention relates to a modified phosphoramidite process for the synthesis of nucleotide sequences. It is possible by using a modified nucleoside phosphoramidite to prepare nucleotide sequences which have a modified phosphate residue.
Patent KR-940001841-B1 (KR)
Inventor: ISHIZU ATSUSHI
IPC: H04N9/78
Filed: 1990-08-01
Granted: 1994-03-09
Abstract: 내용 없음.
Patent KR-930000168-B1 (KR)
Inventor: MIYAKE KATSUTOSHI
IPC: C07D235/02
Filed: 1990-09-29
Granted: 1993-01-11
Abstract: 내용 없음.
Patent KR-930008133-B1 (KR)
Title: Composition for sensitizer
Inventor: AN TAE-WAN
IPC: G03F7/032
Filed: 1990-11-16
Granted: 1993-08-26
Abstract: This refers to a photosensitive resin composition, especially a photo-polymerization  layer.  The  photosensitive   composition comprises 20-60 wt.% terminal ethylene  unsaturated  compd.  30-70 wt.% polymer binder, 0.1-15  wt.%  photopolymerization  initiator, and 5-12 wt.% additives. The  above  binder  includes  20-70  wt.% compd. which has 300-400 of acid value and 1000-20000 of Mw. Pref. the compd. is styrene maleic acid anhydride. The advantage of this composition  is  improved  sensitiveness,  enhanced  stripping  of anticorrosion  layer,  shorter   time   of   removing   and   good productivity.
Patent KR-940004274-B1 (KR)
Title: MANUFACTURING METHOD OF MULTI-LAYERS GaAs DEVICE
Inventor: LEE JONG-HUI
IPC: H01L29/80
Filed: 1990-12-26
Granted: 1994-05-19
Abstract: forming a first epitaxial layer 2 on a GaAs substrate 1 using molecular beam epitaxy; forming an insulating layer 3 by sequential deposition of a first AlGaAs 3b, GaAs 3c and a second AlGaAs 3a on first epitaxial layer 2, first AlGaAs layer 3b and second AlGaAs layer 3a are formed at the same temperature, and GaAs layer 3c is formed at the temperature lower than that of AlGaAs layer 3a,3b; forming an second epitaxial layer 4 on the insulating layer 3; selective etching second AlGaAs layer 3a, GaAs layer 3c and first Al GaAs layer 3b so as to expose first epitaxial layer 2 and second epitaxial layer 4a; forming a metal pattern 6 on an active region of each device; forming a predetermined photoresist pattern 5a on the surface of the substrate; forming an isolation region 7 in the vertical derection to the substrate by ion implanting into the substrate using the photoresist pattern 5a as mask, thereby to shut off the current between the the devices without damaging to the substrate.
Patent KR-940001303-B1 (KR)
Title: Dc motor control circuit
Inventor: SHIN KWANG-HO
IPC: H02P7/00
Filed: 1991-01-28
Granted: 1994-02-18
Abstract: The circuit includes an RF amplifying unit for amplifying the voltage which is converted from the current and a driver (40) for driving the output signal of a compensating unit (30), a sensor unit (60) for detecting the driving output of the driver and compensating unit (30), and an amplifying unit (70) for comparing and amplifying the output of the compensating unit (30) and sensor units (60). The amplifying unit includes an OP-AMP (U1), an input resistor (Rs), a feedback resistor (Rf) and a resistor (R1) and capacitors (C1,C2) for compensating the phase difference.
Patent KR-100221897-B1 (KR)
Title: Synthetic gene bank of human antibody and preparation thereof
Inventor: MELVIN LITTLE
IPC: C12N15/13
Filed: 1991-02-01
Granted: 1999-10-01
Abstract: Synthetic human antibody libraries are constructed by'generation of random sequences for the hypervariable regions under the restrictions (a) or (e), batch A or batch B according to Table 1 and subsequent insertion into an expression vector' (sic). Synthetic human antibody libraries can be produced by using almost randomly synthesised oligonucleotides coding for each of the three hypervariable regions in the variable parts of the heavy and light chains (regions CDR1, CDR2 and CDR3).
Patent KR-950000255-B1 (KR)
Title: Image forming device in color video printer
Inventor: LEE KWANG-JAE
IPC: B41J2/435
Filed: 1991-03-05
Granted: 1995-01-12
Abstract: In an image forming device of a color video printer, a number of optical fibers for an optical fiber plate are disposed on the overall surface of the LCD panel. The optical bar is formed in the shape of a tapered bar whose diameter of the front end is larger than that of the rear end in a ratio of 2:1, so that the light may be focused with a high density.
Patent KR-950003288-B1 (KR)
Inventor: MATSUSAKO KYOJI
IPC: H03M1/80
Filed: 1991-03-27
Granted: 1995-04-07
Abstract: 내용 없음.
Patent KR-0178997-B1 (KR)
Inventor: SEO KWANG-HA
IPC: H01L21/768
Filed: 1991-04-09
Granted: 1999-04-15
Abstract: 본 발명은 텅스텐을 사용하지 않아 공정의 단순화와 원가의 절감을 얻을 수 있는 반도체 장치의 배선간 연결방법에 관한 것으로 기판(1)위에 증착되는 제1메탈(3), 제2메탈(6)을 배선하는 방법에 있어서, 상기 제1메탈(3)위에 제2절연체(4)를 형성하고 패터닝하여 비어 홀을 형성한 후 상기 비어 홀에 베리어 메탈(5)을 2000Å이하로 증착하고 상기 베리어 메탈(5)위에 제2절연체(4)을 150℃ 이하의 저온에서 1㎛이하로 증착한 상태에서 대기중에 노출하지 않고 연속으로 500~600℃에서 가열하여서 이루어지는 방법이다.
Patent KR-940005238-B1 (KR)
Title: Display apparatus and driving circuit therefor
Inventor: KANNO HIDEO
IPC: G09G3/36
Filed: 1991-04-16
Granted: 1994-06-15
Abstract: There is provided a display apparatus comprising: a display panel having a display screen in which scan electrodes and information electrodes are arranged in a matrix shape; first driving means having means for driving the scan electrodes and for selecting the number of channels of an outputting operation to the scan electrodes; and second driving means having means for driving the information electrodes. <IMAGE>
Patent KR-100192323-B1 (KR)
Inventor: KIM SUNG-SIK
IPC: H01L27/04
Filed: 1991-05-15
Granted: 1999-06-15
Abstract: 본발명은 입력 회로의 면적을 줄여 고집적화를 이루기에 적당하도록 한 입력회로의 구조와 제조방법에 관한것으로 먼저 입력회로의 구조는 기판(1)에 형성된 트렌치(2) 내부에 n + 다이오드(X)및 p + 다이오드(Y)와 연결된 메탈(4), 폴리실리콘(6)저항, 패드(9)를 적층하여서 이루어지고 이러한 입력회로의 제조방법은 N형 기판(1)에 p + 이온을 입력패드 형성영역 양측으로 주입하고 p + 이온 주입 영역중 일측에만 n + 이온을 주입한후 트렌치(2)를 형성하는 공정과, 상기 전표면에 산화막(3)을 형성하고 트렌치 내부와 n + 이온 주입 영역의 산화막(3) 위에 메탈(4)을 증착하는 공정과, 상기 메탈(4)위에 산화막(5)을 형성하고 폴리실리콘(6)을 형성하는 공정과, 상기 폴리실리콘(6)위에 산화막(7)과 메탈(8)을 형성한후 그위에 패드(9)를 형성하는 공정을 차례로 실시하여서 이루어진다.
Patent KR-940004495-B1 (KR)
Title: Speed control circuit for vcr
Inventor: LEE HO-WON
IPC: G11B15/02
Filed: 1991-08-05
Granted: 1994-05-25
Abstract: The servo control data of a VCR is sampled one time at every rising time of a pulse generated by a frequency generator of a drum motor. The circuit includes an amplifier (35) for amplifying pulse signal generated by a tachometer, a counter (34) for counting the amplified pulse signal, a speed error signal detector for detecting speed error of the drum motor, a motor driver for driving the drum motor according to speed error detected by the speed error detector.