baber/WOPTO huggingface dataset:
Patent KR-840002085-B1 (KR)
Title: Process for preparing hetero-imino pro stacyclins
Inventor: BECK GERHARD
IPC: C07D209/52
Filed: 1981-02-19
Granted: 1984-11-14
Abstract: A new prostacyclin derivative I (X = O, S, NH; Y = C1-8 n-, branched alkylene radical, C3-6 phenylene radical; Z = -CO2R1, -CH2OH; R3 = halo, trifluoromethyl; R4 = R5 = a protected group) was prepd. Thus, NaOH was reacted with distilled benzyl bromide containing 2-oxa-3- oxo-6-tetrahydropiranyloxymethyl-7-hydroxybicyclo[3,3,0 octan to give 2-oxa-3-oxo-6-tetrahydro-piranyloxymethyl-7- benzyloxybicyclo[3,3,0 octan. A series  of  18 title analogs were prepd.
Patent KR-830002620-B1 (KR)
Inventor: KANEMARU MUMEAKI
IPC: B01J27/00
Filed: 1981-02-24
Granted: 1983-12-06
Abstract: 내용 없음.
Patent KR-840000552-B1 (KR)
Title: Pulp containing hydrophilic debonder and process
Inventor: BREESE JOHN A
IPC: D06M101/08
Filed: 1981-05-18
Granted: 1984-04-20
Abstract: Treatment of cellulosic pulp comprises (a) adding ammonium compounds of formula [NR1R2R3R4 + X- before or during the web forming process and drying the manufd. web to reduce the bonding force of cellulose, while retaining water-affinity of pulp. R1 is methyl, ethyl, propyl, H or hydroxyethyl.  R2 is methyl, ethyl, propyl, or (ethylene oxide) n where n is 1-50. R3 is aliphatic ring having more than 4 carbons. R4 is (ethylene oxide)n or (propylene oxide)n where n is 1-5-. X is Cl, I, Br, SO4-, PO4-- or CH3CO2.
Patent KR-880001940-B1 (KR)
Title: Composites of steel cords and rubber
Inventor: KAWAKAMI SHINJI
IPC: C08J5/04
Filed: 1982-04-08
Granted: 1988-10-04
Abstract: The composite comprises a rubber layer (I) covering steel cords (II) and a rubber layer (III) contiguous to (I). (III) contains a thiazole type vulcanisation accelerator in amt. 0.05-2.0 pts.  wt./100 pts.wt. rubber material.  (III) and/or (I) contains 0.5-10 pts. wt.m-cresol resin per 100 pts. wt. rubber material. Pref.  the m-cresol resin is a novolak type resin having softening pt.  80-120 deg.C prepd. by reacting m-cresol with (para) formaldehyde in the presence of an acid catalyst.  The components are bonded to each other without a decrease in bond strength inspite of the presence of the thiazole vulcanisation accelerator.  The prod. is used in tyre mfr.
Patent KR-880001225-B1 (KR)
Title: Disc player
Inventor: HAMADA YUICHIRO
IPC: G11B21/10
Filed: 1982-04-23
Granted: 1988-07-11
Abstract: The device reproduces audio information from a record disc (1) with spiral or coaxial tracks and includes a pick-up, a motor (2) for rotating the disc relative to the pick-up, a tracking arrangement for causing the pick-up to trace the track or tracks on the disc.  A mechanism (4,5) moves the pick-up in a direction across the track or tracks.  A control unit (40) selectively controls the pick-up to trace the track or tracks intermittently and reproduce the audio information intermittently.  This enables the reproduction mode.  In these modes the motor (5) of the transporting mechanism is driven at 50 times of the normal speed and sections of the disc are skipped.
Patent KR-850000037-B1 (KR)
Title: The method of mos with self alignment metal electroid
Inventor: CHONG CHIL-HUI
IPC: H01L29/94
Filed: 1982-10-13
Granted: 1985-02-13
Abstract: In manufg. method of metal electrode CMOS, oxide film is formed on the n-type Si substrate, p-type well (9) is diffused selectively, thin oxide film is formed again, silicon nitride film is formed on the oxide film, the field doping part (15, 17) of the silicon nitride film is etched, and boron ions and phosphor ions are implanted in order. Oxide film is formed in high temp. diffusion furnace. PSG layer and silicon oxide film are formed, p and n-type impurities are diffused at the same time. The silicon oxide film and the PSG layer are etchd, oxide film is formed, and electrodes (1,2) are formed.
Patent KR-840001079-B1 (KR)
Title: Camer of revolution apparatus
Inventor: KANG SUN-NAM
IPC: G03B15/16
Filed: 1982-12-28
Granted: 1984-07-31
Abstract: A swivel unit for a comera has a rotatable frame (3) and a fixed frame (2) that can be mounted on a tripod. The rotatable frame within the fixed frame has an opening(3') through which the camera-lens member is received. A camera-setting plate(8) is mounted perpendicular to the rotatable frame, and a handle seat(10) receives a detachable handle(12) to swivel the rotatable frame and camera. The fixed frame has a tap screw(16) to hold the rotatable frame, and a mask holder(14) with a flexible cable(15).
Patent KR-870001973-B1 (KR)
Title: Finishing treatment method for durable press of fabrics
Inventor: HENDRIX JAMES E
IPC: D06M101/06
Filed: 1983-03-26
Granted: 1987-10-23
Abstract: The durable press treatment process for cellulose-contg. textile fabrics comprises applying to the fabric a formaldehydebased durable press finishing agent; subjecting the fabric to curing conditions to effect crosslinking and to impact durable press properties to the fabric while leaving moieties in the fabric which may release formaldehyde under conditions of storage and use; and treating the resulting durable press fabric with an oxidising agent to oxidise and destroy formaldehyde-releasing moieties.  The precess gives durable press fabrics with greatly reduced levels of formaldehyde release in storage and use.
Patent KR-910001615-B1 (KR)
Inventor: NASSER GAMAL L D
IPC: F28F3/04
Filed: 1983-05-24
Granted: 1991-03-16
Abstract: 내용 없음.
Patent KR-870001585-B1 (KR)
Title: Safety apparatus of temperature control circuit
Inventor: MATSUO KATSUHARU
IPC: G05B9/02
Filed: 1983-07-14
Granted: 1987-09-04
Abstract: A temperature control apparatus for electric heating equipment, comprising; thermal information output means for detecting the temperaature of electric heating equipment supplied with power from an ac power source through switching means, and for providing thermal data representing the temperature detected; first reference data sampling means for sampling one of first reference data and the thermal data in synchronisom with the zero crossing of said ac power source, first comparing means for comparing the sampled data of said first sampling means with the other of the first reference data.
Patent KR-900005131-B1 (KR)
Title: N-formyl and n-hydroxymethyl-3-phenoxy-1-azetidine carboxamides and their preparation and pharmaceutical composition
Inventor: WRIGHT GEORGE J
IPC: F28F3/10
Filed: 1983-08-31
Granted: 1990-07-20
Abstract: N-Formyl or N-hydroxymethyl-3-phenoxy-1-azetidine carboxamides of formula (I) are prepd. by reacting a cpd. (II) with formaldehyde, formic acid, methyl-o-formate, ethyl-o-formate or acetic acid-formic acid anhydride. In the formulas, R= formyl or hydroxymethyl; R1= H, F lower alkyl or alkoxy, trifluoromethyl, acetyl, N-formylcarboxamido or N-hydroxymethyl-carboxamido; R2= H, F, lower alkyl or alkoxy, trifluoromethyl, acetyl or carboxamido; n= 1-3. (I) are useful as anticonvulsants in the treatment of epilepsy in humans.
Patent KR-910005006-B1 (KR)
IPC: D06M15/263
Filed: 1984-01-25
Granted: 1991-07-20
Abstract: Aqueous compositions which contain a hydrolysed polymaleic anhydride, a complexing agent and a mixture of nonionic and anionic surfactants are suitable for use as assistants in the opening up of cellulose-containing fibre materials.
Patent KR-910004248-B1 (KR)
Inventor: SAVOYET JEAN L
IPC: G07F7/10
Filed: 1984-05-11
Granted: 1991-06-24
Abstract: 내용 없음.
Patent KR-860001929-B1 (KR)
Title: Process of making the insulating window sash
Inventor: NAGAI YOSITAKA
IPC: E06B1/32
Filed: 1984-06-20
Granted: 1986-10-25
Abstract: The heat-insulating profile rail-type bar, to be made for a window or door frame, or something similar, has a connecting piece of insulating material between two sidewalls. This consists of a extremely extruded metal profile with a connecting wall. On one side this connecting wall (5) has a recess (8), along the metal profile (1), with inclined sides. Its material is cut away from the side opposite the recess, which may be trapezoid or arc shaped. The connecting wall may be cut away with a rotating tool.
Patent KR-870000380-B1 (KR)
Title: Disk screen apparatus disk assemblies and method
Inventor: GILL MICHAEL L
IPC: B01D33/00
Filed: 1984-07-14
Granted: 1987-03-07
Abstract: The disc screen comprises a screening bed with a series of corotating disc assemblies having a series of discs which interdigitate with the discs of adjacent assemblies. Each assembly has an elongate shaft rotatably mounted on the appts., with an indexing and keying structure extending along the shaft to define an edge. The edge has a series of circumferential notches spaced longitudinally along it. The screen discs are annular and have inner dias. with keys engageable in the notches. The keys may be locked in the notches to hold the discs in position.
Patent KR-860002196-B1 (KR)
Title: Process for preparing compositions for cosmetic healthandbodypreserving use
Inventor: BOGDANY LAZLO
IPC: A61K8/19
Filed: 1984-11-23
Granted: 1986-12-31
Abstract: Cosmetic compns. for skin and body protection consist of blood proteins, trace inorg. substances or metal salts or lake, natural, ocean or mineral waters and mixts. of plant juices. A mixt. contg. white petrolatum 137.5, cetyl alc. 82.5, paraffin oil 27.5, and Tween-60 27.5g was heated at 80≰C  to form an aliph. phase of the compn. At the same time, 10 g plasma protein was subjected to swelling in 200 ml medicinal water and the mixt. was treated thermally at 112≰C  for 90 min. The protein was cooled to 60≰C and mixed with the aliph. phase (paraffin) at 80≰C. After homogenization another 600 ml Harkany medicinal water heated to 70≰C was added to the mixt. and the mixt. stirred while cooling.
Patent KR-890004417-B1 (KR)
Title: Spiral fluid meter
Inventor: MARAGAMI HIDEO
IPC: G01F1/32
Filed: 1984-12-01
Granted: 1989-11-03
Abstract: The flowmeter includes a fixing flange (1) which is rigidly connected with the vortex flowmeter and a hydraulic plate (5).  The variation of pressure which acts on the hydraulic plate through an opening (21) is sensed at the sensor (4).  The sensor such as a piezometer converts the variation of pressure into electrical signal.  The electrical signal is passed through the insulated wire (8) and the input port of amplifier.  Externally derived vibrations are prevented from acting on electrical signals which are output from vortex sensor elements and passed through leads. It has effective compensation capability for errors due to its integral structure.
Patent KR-910002840-B1 (KR)
Inventor: KENYON RONALD W
IPC: C07D493/04
Filed: 1984-12-15
Granted: 1991-05-06
Abstract: 내용 없음.
Patent KR-870001859-B1 (KR)
Title: Method for making a platform leg
Inventor: PARK JONG-BONG
IPC: E02B17/02
Filed: 1985-02-15
Granted: 1987-10-17
Abstract: The brace (3) and the pannel brace (4) are prefabricated on the ground, and are erected by the crane (5).  Then these are welded for assembling construction. Therefore, this work reduces the safety hazard, the inferior welding works, the delaying of works and the poor quality works.
Patent KR-890003644-B1 (KR)
Title: Method of controlling the strip shape and apparatus therefor
Inventor: DAHARA AKIHIRO
IPC: B21B37/34
Filed: 1985-03-29
Granted: 1989-09-29
Abstract: A method of controlling the shape of strip rolled by means of a rolling-mill provided with rolls, including work rolls and backup rolls, the amount of crown of the back-up rolls being variable by expanding or shrinking their shells radially using the pressure of a liquid fed into the inside thereof, comprises the steps of: detecting the strip shape; obtaining a power function approximating the detected strip shape, the power function depending on a variable which is a distance in the direction of width from a given position across the strip and including a term of the second power of the variable; and adjusting the amount of the crown of the back up rolls.
Patent KR-910009489-B1 (KR)
Inventor: BOXTER TRABENOL LABORATORIES I
IPC: A61J1/00
Filed: 1985-09-17
Granted: 1991-11-19
Abstract: 내용 없음.
Patent KR-920002223-B1 (KR)
Inventor: MORITA KOUITCHI
IPC: A01N47/36
Filed: 1985-11-11
Granted: 1992-03-20
Abstract: 내용 없음.
Patent KR-870001522-B1 (KR)
Title: Process for the preparation of glyphosate and glyphosate derivatives
Inventor: ROGER THOMAS E
IPC: C07F9/38
Filed: 1985-12-27
Granted: 1987-08-22
Abstract: N-phosphonomethyl glycine is prepd. for use as a weed killer. Compd. (II) (R1, R2=-OH, -SH, amine; R3=alkyl, hydrogen) is condensed with compd. (III) (R=hydrogen), and the condensed compd. is reduced in the same reaction medium to give secondary (or tertiary) amine (I).  The reaction medium is aqueous mixt. whose pH is 4.0-11.0.  The reduction is performed by electro-chemical method or by reaction with reducing agent.
Patent KR-900001094-B1 (KR)
Title: Mixturing method for sintered materials
Inventor: HWANG JAE-WOON
IPC: B22C1/02
Filed: 1985-12-31
Granted: 1990-02-26
Abstract: A mixting method of sintered materials is characterized by controlling the amount of fine ore included in core particles to 10- 30 wt.% and that of fine ore included in adhering particle, 40-20 wt.%.  The fine ore to be included in core particles is crushed to 0.25mm or below.
Patent KR-900001730-B1 (KR)
Title: Composition of ceramic-coating materials
Inventor: CHOI BYUNG-HYUK
IPC: C09K5/00
Filed: 1986-05-06
Granted: 1990-03-19
Abstract: A ceramic-coating material composition for radiating distant infrared rays comprises 7-20 wt.% zirconium oxide, 7-20 wt.% silica, 0.1-10 wt.% titanium oxide, 0.1-10 wt.% manganese oxide, cobalt oxide, oxidized steel, 45-55 wt.% silicasol and 7-20 wt.% aluminium phosphate solution.  The composition has a good heat and impact resistance.
Patent KR-900001833-B1 (KR)
Title: Packaged semiconductor device
Inventor: KATO TOSIHIRO
IPC: H01L23/28
Filed: 1986-06-13
Granted: 1990-03-24
Abstract: The moulded layer seals a semiconductor chip (4), a bed part (21), a set of bonding wires (6) and a heat sink (1) which has a gap of a prescribed distance between the heat sink (1) and the back of the bed part (21).  The layer comprises a moulded layer (31) which seals to expose the back of the bed part and a second moulded layer (32) is formed to cover sides of the heat sink (1) and of the first moulded layer (31).  The intermediate parts of the leads (2) are coupled to the chip via the bonding wires, and the gap is filled with the 2nd layer (32) between the bed part (21) and the heat sink (1).  A part of the first layer can be unfilled by a notch or through-hole.
Patent KR-900003895-B1 (KR)
Title: A process for the manufacture of high calorie briquet with low quality birquet & its material
Inventor: LEE SANG-KUEN
IPC: C10L9/00
Filed: 1987-01-06
Granted: 1990-06-04
Abstract: A calorific additive compsn. for improving a low quality briquet consists of 17-47 wt.% potassium nitrate, 33-59 wt.% barium nitrate, 10-12 wt.% Fe2O, 4-6 wt.% phosphorus, 3-4 wt.% sulphur, 2-3 wt.% magnesium oxide and 1-2 wt.% one or more of silicon dioxide, diatomite, talc or potassium chlorate. The additive gives a strong burning effect.
Patent KR-900006908-B1 (KR)
Title: Immunoglobulin conjugates
Inventor: LAGUZZA BENNETT C
IPC: C07D519/04
Filed: 1987-05-25
Granted: 1990-09-24
Abstract: Vinca hydrazone conjugates of formula (I) are prepd., where R2= H, CH3 or CHO; R5= H and one of R3 and R4 is Et and the other is H or OH or R4 and R5 together with the Cs to which they are attached from an oxirane ring in which case R3 is Et; R1= H, (C1-3 alkyl)-CO, or chloro substd. (C1-3 alkyl)-CO; m = 1-25; GP= an oxidized glycoprotein or fragment. The conjugates are useful as antineoplastic agents. The oxidised glycoprotein portion is pref. prepd. from monoclonal antibodies esp. those which recognise human cancer cells.
Patent KR-950002101-B1 (KR)
Inventor: ECKTMAN JACK D
IPC: B30B15/02
Filed: 1987-09-19
Granted: 1995-03-13
Abstract: 내용없음.
Patent KR-900005403-B1 (KR)
Title: Composition of powder water-proofing agent for cement
Inventor: RYU CHUNG-KUN
IPC: C09K3/12
Filed: 1987-09-23
Granted: 1990-07-28
Abstract: A powder water-proofing agent for cement is prepared homogeneously mixing and powdering 200-300 wt.% metallic salts of fattic acid e.g. calcium or aluminium of stearinic acid, 100-200 wt.% paraffin chloride haring 70% chlorine, 80-100 wt.% inorganic compound having compsn. of 50-100 wt.% carbon black, 50-75 wt.% isotactic polypropylene having particle size of 200-325 mesh and 10-15 wt.% polyethylene oxide, and 1-3 wt.% naphthalene sulfonic acid sodium formalin condesation as dispering agnet.
Patent KR-900003912-B1 (KR)
Title: Anti-impactness polystrene
Inventor: MIN BYUNG-KWON
IPC: C08F2/18
Filed: 1987-10-14
Granted: 1990-06-04
Abstract: An impact-resistant polystyrene resin is prepd. by two-step bulk- suspension polymn. comprising the steps of; (A) admixing tert. dodecyl mercapthane and silicone oil with synthetic rubber soln. insolved in styrene monomer, and preparing a prepolymer by the bulk- polymn. with stirring and heating when phase conversion terminated; (B) suspension polymerising by adding a suspension soln. and a little of mineral oil with the obtd. prepolymer, suspending and then adding a polymn. initiator and heating. The suspension soln. is made by dispersing tricalcium posphate in diionized water. Pref. the rubber is dissolved in amt. of 3-15% w.r.t. styrene monomer.
Patent KR-900004272-B1 (KR)
Title: Process for making milk added licorice root extracts
Inventor: LEE SANG-TAEK
IPC: A23C9/156
Filed: 1987-12-04
Granted: 1990-06-20
Abstract: The process for making milk added licorice root extracts is presented. Thus, 50g of licorice root is washed and then 500cc of fine water is added. The mixture containing licorice root is decocted for 2 hrs. to educe licorice root extracts. Two ml of licorice root extract obtained in above process is added into 200ml of milk to malk products without the smell of milk.
Patent KR-910001207-B1 (KR)
Title: Automatic reverse recording circuit for micom double deck cassette
Inventor: OH WOO-TAEK
IPC: G11B15/06
Filed: 1987-12-08
Granted: 1991-02-26
Abstract: The method is for recording the front and back  face  of  the tape with an audio head having a pair of tracks in  the  automatic reverse double deck cassette player. The circuit comprises a first controller (1), a second controller (2), and  a  driver  (3).  The controllers are controlled by reproduction (PB) and  record  (REC) control signals of a microprocessor (MC) and outputs of a pair  of tape end sensors (S1-2). The rotation direction of a pair of  deck motor drivers (DM1-2) and the track selection of a  pair  of  head selection circuits (HS1-2) are controlled by  the  output  of  the controllers.
Patent KR-940011757-B1 (KR)
Inventor: GOODE PETER A
IPC: H03K17/082
Filed: 1986-07-07
Granted: 1994-12-23
Abstract: 내용 없음.
Patent KR-900005464-B1 (KR)
Inventor: NEWCOMB RUSSELL R
IPC: H03M1/14
Filed: 1986-09-15
Granted: 1990-07-30
Abstract: 내용 없음.
Patent KR-920006922-B1 (KR)
Inventor: TERAMACHI HIROSHI
IPC: F16C29/06
Filed: 1988-03-21
Granted: 1992-08-22
Abstract: 내용 없음.
Patent KR-910008946-B1 (KR)
Title: Thin film transistor for plate display
Inventor: CHANG GYU-JONG
IPC: H01L29/786
Filed: 1988-04-06
Granted: 1991-10-26
Abstract: The thin film transistor (TFT) for planar  display  comprises the gate electrode  and  the  drain  electrode  in  a  multi-layer structure to prevent the short and disconnection of electrodes. An SiO2 insulating  layer,  amorphous  silicon  layer,  N+  amorphous silicon ohmic layer (17) and source/drain electrode (8) are formed in sequence on  the  second  layer  of  gate  (12,12')  and  drain (32,32') electrodes.
Patent KR-920009524-B1 (KR)
Inventor: DAKAHASHI HIDEYUKI
IPC: C12R1/43
Filed: 1988-04-07
Granted: 1992-10-17
Abstract: 내용 없음.
Patent KR-960008663-B1 (KR)
Title: Cyclobutene-3,4-dione-intermediates and their use in the preparation of histamine h2-antagonists
Inventor: DOUGLASS JAMES L
IPC: C04B28/36
Filed: 1988-05-14
Granted: 1996-06-28
Abstract: Cyclobutene derivs. of formula (I) are used in prepn. of cyclobutene derivs. of formula (V), or their non-toxic pharmaceutically acceptable salts, by (a) reacting (I) with a phenol deriv. of formula (III) in an inert solvent, or mixed aq./organic solvent, in presence of a base and opt. a catalyst to give a cpd. of formula (IV); and (b) reacting with an amine of formula R1NH2. - In formulae, R1 = H or lower alkyl; R2 and R3 = lower alkyl; or NR2R3 = pyrrolidino, methylpyrrolidino, piperidino, methylpiperidino, homopiperidino, heptamethyleneimino, or octamethyleneimino; R = lower alkyl or cyclohexyl; and X = leaving gp.
Patent KR-910005697-B1 (KR)
Inventor: MINAMISAWA TSUYOSI
IPC: C08L81/02
Filed: 1988-06-14
Granted: 1991-08-02
Abstract: 내용 없음.
Patent KR-920005151-B1 (KR)
Inventor: AKESAKA TOSHIO
IPC: E21B11/00
Filed: 1988-07-28
Granted: 1992-06-27
Abstract: 내용 없음.
Patent KR-920000311-B1 (KR)
Title: Dart game target construction
Inventor: DEVALE DONALD P
IPC: F41J3/00
Filed: 1988-12-09
Granted: 1992-01-11
Abstract: A dart game target having a base (11) on which is assembled a plurality of individual, relatively movable target members (3, 4, 5, 6) separated from one another by a frame (2) having thin ribs (13-17, 19) interposed between adjacent members. The target members are yieldably biased in a direction away from the base. Movement of the members in a direction away from the base is limited by laterally extending projections (33, 34, 41, 56) carried by the target members which underlie the inner surfaces of the ribs. The arrangement is such that no part of any rib overlies any exposed part of any target member. Warping of the frame or of the base is compensated for by protrusions (87) on selected ones of the ribs which extend in a direction toward the base.
Patent KR-960014639-B1 (KR)
Inventor: MORI SANAE
IPC: F16C17/02
Filed: 1988-12-26
Granted: 1996-10-19
Abstract: 내용 없음.
Patent KR-970006667-B1 (KR)
Inventor: BRUTTEL BEAT
IPC: D06L4/664
Filed: 1988-12-28
Granted: 1997-04-29
Abstract: 내용없음.
Patent KR-930008939-B1 (KR)
Inventor: JO HUI-KUN
IPC: H01G9/02
Filed: 1988-12-30
Granted: 1993-09-17
Abstract: 내용 없음.
Patent KR-960005377-B1 (KR)
Title: Radio receiver speech amp circuit
Inventor: BARES ZEROMIR R
IPC: G10L21/034
Filed: 1987-11-27
Granted: 1996-04-24
Abstract: A speech amplifier circuit increases the maximum perceived loudness at the speaker (412) and reduces distortion at high volume levels without increasing the power consumed by the speech powder amplifier (410). When a low volume is selected by the volume control (414), the microcomputer (418) sets the step attenuator (406) at a correspondingly high attenuation level and the high-pass filter (408) is bypassed. As the volume control (414) is advanced and the speech power amplifier (410) is 12 dB into clipping, the microcomputer (418) activates the high-pass filter (408) and simultaneously steps the gain of the step attenuator (406) by 6 dB.
Patent KR-960004795-B1 (KR)
Inventor: WERNER FOPPE
IPC: E21B/
Filed: 1988-01-12
Granted: 1996-04-13
Abstract: 내용 없음.
Patent KR-910004481-B1 (KR)
Inventor: ODA MINORU
IPC: A61K31/415
Filed: 1989-03-11
Granted: 1991-06-29
Abstract: 내용 없음.
Patent KR-920010749-B1 (KR)
Title: Circuit for changeing inner voltage in semiconductor memory device
Inventor: MIN DONG-SON
IPC: H03K17/687
Filed: 1989-06-10
Granted: 1992-12-14
Abstract: The converter circuit  has  a  number  of  parallel-connected internal voltage converting stages to reduce the power consumption in case of  providing  the  stand-by  power  and  to  improve  the stability of the internal  supply  voltage,  each  stages  (10,20) including a buffer (2,2'), a charge  pumping  unit  (3,3')  and  a power unit (4,4'). The convert circuit comprises an oscillator (1) for generating square waves, a sub-curcuit (10),  a  main  circuit (20) and a detector (5) for detecting the insternal  power  supply voltage to control the operation of the  buffer  (2').  The  power unit controls the level of the  internal  supply  voltage  by  the charge pumping unit. In a stand-by mode, only the sub-circuit (10) operates.