baber/WOPTO huggingface dataset:
Patent KR-850001945-B1 (KR)
Title: Method for producing semiconductor grade silicon
Inventor: GUTSCHE HENRY W
IPC: C30B25/00
Filed: 1981-07-27
Granted: 1985-12-31
Abstract: A slim rod is heated to 1000 - 1300≰C in a chem. vapor deposition chamber. A gas mixt. and silicon halide-hydrogen reaction gases are thermally decompd. by contact with the slim rod. The addnl.  silane increases the silicon decompn. rate, but its amount is limited to prevent free silicon particle or silicon halide polymer from attaching to the walls.
Patent KR-870000021-B1 (KR)
Title: Sensor for measuring density of oxygen in molten metal
Inventor: SSUJIDA YUDAKA
IPC: G01N27/413
Filed: 1981-09-03
Granted: 1987-01-28
Abstract: Coating for oxygen ion conductive solid electrolyte in molten metal oxygen level sensor with Mo electrodes and reference electrode is a mixt. of Al203 powder, metal fluoride powder and binder. This gives improved thermal shock resistance and less cracking and peeling. Pref., the fluoride metal is MgF2 and/or CaF2, and the binder is an organic binder, e.g., polyvinyl alcohol. In an example, four mixts. were prepd., each with 51 wt.% Al203, 3 wt.% organic binder and 37 wt.% water, and, respectively, 9 wt.%, 6 wt.% and 3 wt. % and 1 wt.% MgF2 and O.
Patent KR-880000292-B1 (KR)
Title: Glass fibre yarns and other goods and method of manufactures
Inventor: JYA GGEU BBEU REO JANG
IPC: D02G3/18
Filed: 1982-02-18
Granted: 1988-03-19
Abstract: Short glass fibres are carded and spun into textile yarns to provide a safe, cheap substitute for asbestos.  The glass fibres, from 10 to 100mm long, are mixed with support or scaffold fibres, which may be flameproofed, comprising staplefibres of viscose, acrylics, modacrylics, polyamides or polyester.  A core yarn of carbon, metal or synthetic fibres may be introduced by spinning or twisting.  The fibres may be spun and twisted to form yarn, cord or cable, and woven to form fabrics, e.g. for protective clothing. The use of glass fibres is considerably cheaper as an alternative for asbestos, than ceramic fibres or carbon fibres.
Patent KR-880002414-B1 (KR)
Title: Dimerizing acrylonitrile
Inventor: GRASSELLI ROBERT RARL
IPC: C07C255/09
Filed: 1982-08-09
Granted: 1988-11-08
Abstract: Adiponitrile and/or 1,4-dicyanobutenes are prepd. by dimerizing acrylonitrile using a catalyst at 20-250↿C in the presence of hydrogen.  The catalyst comprises a polymer support to which is bonded a Ru complex.  The polymer support is an organic polymer backbone with trivalent P pendant atoms covalently bonded to it in a random distribution along the polymer.  The Ru complex comprises Ru and at least two homogeneous ligands with at least four ligating bonds bonding to Ru, and is free of homogeneous phosphine ligands.
Patent KR-840001893-B1 (KR)
Title: Automatic repetition carmera
Inventor: KWON IK-HAN
IPC: G03B27/00
Filed: 1982-11-29
Granted: 1984-10-24
Abstract: An electronic clutch(13) and electronic break(10) are joined by a transportation roller(11). The electronic clutch(13) is constructed at the end of shutter rotation shaft(3). A spring(4) installed between the rotation shaft(2) and the main shaft(5) controls the opening time of the shutter. Whenever, the operation button is pushed, the motor begins to run. The electricity runs through the micro-switches(S1,S3) and is transported to the electronic clutch(7). At the same time, Polaroid photograph paper is immediately imprinted when the roation shaft(3) in turned. The number of photographs is decided by the number of humps(6') in the cam.
Patent KR-910005308-B1 (KR)
Inventor: KUROSU DADAO
IPC: G11B17/056
Filed: 1983-07-18
Granted: 1991-07-24
Abstract: 내용 없음.
Patent KR-930000078-B1 (KR)
Inventor: WIBERS MARK W
IPC: G11B23/087
Filed: 1985-02-06
Granted: 1993-01-08
Abstract: 내용 없음.
Patent KR-870000626-B1 (KR)
Title: Process for preparation of spiro-imidazolones
Inventor: LAPINSKI CHRISTOPHER A
IPC: C07D495/10
Filed: 1985-07-18
Granted: 1987-03-26
Abstract: Spiro-imidazole (I)[X=oxygen, sulfur; Y=hydrogen, halogen, alkyl; R=hydrogen, methyl, ethyl  is prepd. for use as an inhibitor of aldose reductase. Compd. (II) is cyclized by acid-catalyst reaction to give spiro-imidazole (I). The ring-formation reaction is performed at 0≰C- solvent reflux temp. and proper solvent is benzene or toluene and used acid is Lewis acid, such as aluminium chloride or titanium chloride. In case of using hot sulfuric acid as used acid, the reaction temp. is 50-90≰C.
Patent KR-890004224-B1 (KR)
Title: Color encoding filter for a camera and a decoding scheme therefor
Inventor: KNOP KARL H
IPC: G02B5/20
Filed: 1985-07-30
Granted: 1989-10-27
Abstract: The filter comprises a plurality of rows of colour filter elements, each row having a sequence of colour filter elements which repeats after a predetermined number P of elements wherein P is greater than equal to eight, the sequential row of the colour filter elements shifted in the row direction by at least two elements from the preceding row.  The colour combination sequence is repeated after a number of combinations equal to the predetermined number P, and have the color combinations symmetrically disposed about one colour combination of the colour combination sequence.
Patent KR-870001793-B1 (KR)
Title: Process for preparing n-sulfamoyl-3-(2-guanidinothiazole-4-ylmethyltio)propionamide
Inventor: KIM DON-GI
IPC: C07D277/22
Filed: 1985-12-06
Granted: 1987-10-12
Abstract: The title compds. (I) are prepd. by reacting thioimidate derivs. with sulfamide at -10 to 20 deg.C.  In the formula, R' is H, C2-6 alkylcarbonyl or haloalkylcarbonyl.  Dissolve 0.5g of s-propyl-3-[(2- guanidinothiazole-4-yl) methylthio! propylthioimidate in 3ml of dried MeOH add 0.34g of sulfamide and reflux for 2hr, distn. and refine by TLC to produce 0.28g of title compds.. (I) are useful for treatment of gastric ailments.
Patent KR-900009045-B1 (KR)
Inventor: KAKAMI AKKIYASU
IPC: C09K11/56
Filed: 1985-12-10
Granted: 1990-12-17
Abstract: 내용 없음.
Patent KR-940010764-B1 (KR)
Title: Process for the preparation of phenyl carbamates
Inventor: ROSIN MARTA W
IPC: A61K31/27
Filed: 1986-03-04
Granted: 1994-11-11
Abstract: Phenyl carbamates of the general formulawherein R<sub>1</sub> to R<sub>5</sub> are as defined in the claims, are useful as pharmaceuticals.
Patent KR-920002306-B1 (KR)
Title: Preparation method of lightweight adiabatic building material using fly ash
Inventor: CHOI BYUNG-SUN
IPC: C04B18/06
Filed: 1986-03-21
Granted: 1992-03-21
Abstract: An ALC (autoclave lightweight concrete) is  manufactured  by: (A) making a mixture (1) of fly ash, limestone powder and  cement; (B) making a mixture (2) by mixing a reactive solution  containing organic additive 5-20 g and inorganic  additive  20-80  g  to  the above mixture (1) 1 kg with  a  foaming  agent  1-5  g  containing aluminum powder, stearin acid and surfactant dissolved  in  water; (C) molding the  mixture  (2)  and  then  preceeding  the  foaming reaction  of  aluminum  powder  and  lime  for  a  required  time; autoclave curing in the temperature  range  of  150  deg.C  -  200 deg.C.
Patent KR-870000961-B1 (KR)
Title: Process for preparing substituted bridged-diazabi-cycloalkyl quinolone carboxylic acid
Inventor: JEFSON MARTIN R
IPC: A61K31/495
Filed: 1986-09-17
Granted: 1987-05-14
Abstract: Dihydroquinoline derivs. of formula(I) are prepd. by the reaction of II and R2H. In (I) and (II), R1=H or C1-6 alkyl; A=CH, CF, CCl or N; Y=C1-3 alkyl, C1-3 haloalkyl, cyclopropyl, vinyl, methoxy, or p- aminophenyl; A=carbon; R2=phenyl opt. substd. by 1-3 of 1-4C alkyl, alkoxy, alkyl-S(O)n, F, Cl, NH2 C1-4 alkylamino, NH2SO2; Hal=halogen. (I) are antibacterials. They can be administered orally, e.g. at 0.5- 200 mg/kg/day, e.g. in need or drinking water, or by usual parenteral routes.
Patent KR-910000650-B1 (KR)
Inventor: OONISHI MASAMI
IPC: G07F17/28
Filed: 1986-11-04
Granted: 1991-01-31
Abstract: 내용 없음.
Patent KR-930002860-B1 (KR)
Inventor: MCCULLY PETER K
IPC: A44B11/00
Filed: 1986-11-20
Granted: 1993-04-12
Abstract: 내용 없음.
Patent KR-890003902-B1 (KR)
Title: Manuscript table control apparatus of electrography
Inventor: YANG GUN-YONG
IPC: G03G15/00
Filed: 1986-12-31
Granted: 1989-10-10
Abstract: The rack with a variable window is for adjusting the window size with respect to the manuscript size automatically.  The screens (9,14) for X, Y direction are wound by rollers (8,12) drived by servo motors (4,5).  The manuscript maximum size is detected by photosensors (24,25) located on the top and left side of the window.  Once the manuscript size is selected by a selection switch (3), the servo motors are driven for preset time to match the manuscript and window sizes.
Patent KR-910009072-B1 (KR)
Inventor: YOSHITTOMI TOSHIHIKKO
IPC: G11B7/243
Filed: 1987-02-05
Granted: 1991-10-28
Abstract: 내용 없음.
Patent KR-950008316-B1 (KR)
Title: 1-hydroxy-oxo-5h-pyrido(3,2-a)-phenoxazine-3-carboxylic acid esters
Inventor: TERAYAMA HIDEO
IPC: C07D498/04
Filed: 1987-07-14
Granted: 1995-07-27
Abstract: The compounds represented by the general formula <CHEM> wherein R is an alkyl group having 1-10 carbon atoms are novel compounds which have not been reported in the literature. Since they have excellent affinities for tissues with particular high corneal permeability and show anticataract activity at low concentration, the compounds are of value as prophylactic and therapeutic agents for cataract.
Patent KR-930002364-B1 (KR)
Title: Process for the preparation of tertiary succinic imido ammonium salt
Inventor: YUN MU-HONG
IPC: C07C209/12
Filed: 1987-07-21
Granted: 1993-03-29
Abstract: The method for preparing trisubstituted succinimido  ammonium salt of formula (I) comprises dissolving N-bromo succinimide  with tetrahydro furane (THF), adding  triethylamine  and  reacting  the mixture at 10-15 deg.C for 2 hrs. to obtain  triethyl  succinimido ammonium bromide crystal. In (I), R1, R2  and  R3  are  each  C1-4 alkyl, aryl or aralkyl. Succinimide is useful as  a  plant  growth modulator. Trisubstd. succinimido  ammonium  salt  (I)  is  easily absorbed into plant body.
Patent KR-950012883-B1 (KR)
Inventor: SMITH BENI E
IPC: A01K89/015
Filed: 1987-09-07
Granted: 1995-10-23
Abstract: 내용 없음.
Patent KR-950004801-B1 (KR)
Inventor: OKAMODO KOHEI
IPC: H01B3/30
Filed: 1987-09-18
Granted: 1995-05-10
Abstract: 내용 없음.
Patent KR-940009292-B1 (KR)
Title: Pulse generator
Inventor: KIM KI-BOM
IPC: G06F1/04
Filed: 1987-10-14
Granted: 1994-10-06
Abstract: The circuit provides video signal frame coordinates and coordinates coincidence that diplay video without error. The cuircuit comprises: a synchonization separation part generating vertical synchronizing signal and horizontal synchronizing signal from complexed video signal, a frequency circuit frequency converting the first clock pulse column to the fifth clock pulse column, a horizontal situation counter counting the fifth clock pulse column and generating horizontal situation coordinates, a scanning line counter generating the scanning line coordinates, a comparing circuit comparing a pair of input signals and generating coordinates coincidence pulse.
Patent KR-910006571-B1 (KR)
Title: Audio signal recording/playing device and method for video tape recorder
Inventor: KIM SUNG-HOON
IPC: G11B5/027
Filed: 1987-12-04
Granted: 1991-08-28
Abstract: The stero audio  signal  is  converted  into  the  compressed digital audio signal and the compressed audio signal  is  recorded sequencially on the audio track using the helical scanning method. The recorded digital stero audio signal is  read  by  the  helical scanning method, is decompressed and is converted into the  analog audio signal. The apparatus includes a first  A/D  converter  (20) for converting L channel analog audio signal into a first  digital audio signal,a second A/D converter (21) for converting R  channel analog audio signal into a second digital audio  signal,  a  first compression circuit (30) for compressing the first  digital  audio signal, a first switching circuit (50) for repeating the L  and  R channel compressed signal to mix the audio signal and a  modulator (60) for modulating the mixed audio signal.
Patent KR-930006832-B1 (KR)
Title: Paper checking method for fax
Inventor: SHIN JAE-SUNG
IPC: H04N1/12
Filed: 1987-12-24
Granted: 1993-07-24
Abstract: The facsimile having a memory device for storing a  plurality of copy papers, has a photo sensor for detecting remaining roll of recording paper efficiently. The method comprises  sensor  control step for controlling power supply to sensors (a-e) after detecting operation of sensor section (9) for  detecting  the  remainder  of recording paper (11); interrupting step for storing receiving data to memory device (6) and alarming interrupt inable state according to lack of the paper  (11);  sensor  checking  step  for  checking operation of the sensors  (a-e)  and  memorizing  after  receiving image data when  the  state  is  not  interrupt-enable;  step  for finishing receiving when next receiving page  does  not  remained, returning to the step for receiving image data when next receiving pages are remained.
Patent KR-960014070-B1 (KR)
Inventor: COOGAN JAMES JOSEPH
IPC: B60K17/346
Filed: 1988-01-22
Granted: 1996-10-12
Abstract: 내용 없음.
Patent KR-910004354-B1 (KR)
Inventor: DUAL CHARLOTTE L
IPC: A23L1/00
Filed: 1988-01-26
Granted: 1991-06-26
Abstract: 내용 없음.
Patent KR-930000658-B1 (KR)
Inventor: SAKAYA MASUJI
IPC: F28D15/02
Filed: 1988-03-09
Granted: 1993-01-29
Abstract: 내용 없음.
Patent KR-910001677-B1 (KR)
Title: Priority calling method between keyphone and pabx
Inventor: KIM MUN-SIK
IPC: H04M3/20
Filed: 1988-04-27
Granted: 1991-03-18
Abstract: This method allows to make a call mandatory without  waiting, send message to speaker of receiver phone set and release the call after completion to make a line free. The  feature  improves  long waiting time in extension phone system and  repetitive  call  when receiver is busy tone and send the message to  many  receivers  at the same time. The system is composed of the  sub-set  (20),  main set (10) and sub-set interface  (16).  The  CPUz  is  transmitting input data from the keymootrix and LED matrix (17) of  the  subset to the main set and is sensing a command to  process  the  control data, and sensing a  command  to  process  the  control  data  and display data from the main set. Also CPUz controls  voice  control switch (28) to allocate channels of combocodeok (29), make speaker (33) and microphone (35) on-state and make a  connection  speaker, microphone and toneringer (32) according to the main-set data.
Patent KR-910008960-B1 (KR)
Title: Out sole for sports shoes
Inventor: ANDERIE WOLF
IPC: A43B13/18
Filed: 1988-06-09
Granted: 1991-10-26
Abstract: PCT No. PCT/DE88/00767 Sec. 371 Date Aug. 9, 1989 Sec. 102(e) Date Aug. 9, 1989 PCT Filed Dec. 16, 1988 PCT Pub. No. WO89/05593 PCT Pub. Date Jun. 29, 1989.An outsole of flexible plastic material for sports shoes with a recess (4) beneath the heel support surface (A) for accommodating a plurality of individual bodies (5) comprising a resilient material, which fill the recess and which in the non-loaded condition bear against each other only in a region-wise or point-wise manner, forming spaces therebetween. The individual bodies (5) may be in the form of balls and may be joined together by a matrix of small connecting limb portions, to provide for better handling.
Patent KR-960007373-B1 (KR)
Title: Process for preparation self-supporting bodies and the products made thereby
Inventor: WHITE DANNY R
IPC: B22F3/26
Filed: 1988-07-15
Granted: 1996-05-31
Abstract: Self-supporting bodies are produced by reactive infiltration of a parent metal (10) into boron carbide (12) typically resulting in a composite comprising a boron-containing compound and metal. The mass to be infiltrated may contain one or more inert fillers (14) admixed with the boron carbide (12) to produce a composite by reactive infiltration, which composite comprises a matrix of metal and boron-containing compound embedding the filler (14). The relative amounts of reactants and process conditions may be altered or controlled to yield a body containing varying volume percents of ceramic, metal and/or porosity.
Patent KR-920009530-B1 (KR)
Inventor: HIHARA MIKIO
IPC: B28C5/38
Filed: 1988-08-26
Granted: 1992-10-19
Abstract: 내용 없음.
Patent KR-0140897-B1 (KR)
Inventor: ARAI YOSHI
IPC: G02F1/1334
Filed: 1988-10-20
Granted: 1998-06-15
Abstract: 내용없음.
Patent KR-910003692-B1 (KR)
Title: High frequency heating device and stray emission protecting method
Inventor: LEE JANG-DAE
IPC: H01J9/18
Filed: 1988-11-05
Granted: 1991-06-08
Abstract: The apparatus supresses the G1 and G2 stray  emission  caused by the carbonate gas to diminish the leakage current  of  a  first electrode and to increase the voltage rating of a third  electrode of a bulb. The apparatus includes a high  frequency  heating  coil (90) moving up and down by a handle to enclose  the  neck  of  the bulb. High frequency current of 40-50A and 250 KHz is provided  to the high frequency heating coil about 3-5  minutes  to  incinerate the alien substances  attached  on  the  bulb.  This  process  is exceuted between a high voltage aging process and a  laster  aging process.
Patent KR-960009005-B1 (KR)
Title: Diamond growth process
Inventor: THOMAS RICHARD ANTHONY
IPC: C23C16/26
Filed: 1988-12-13
Granted: 1996-07-10
Abstract: Boron is used as a diamond crystal nucleation and growth enhancer on a substrate in a CVD process of nucleating and growing diamond crystals on a substrate exposed to an activated hydrogen-hydrocarbon gas mixture.
Patent KR-920002669-B1 (KR)
Inventor: HURUHATA TAKASHI
IPC: H04N5/7826
Filed: 1989-01-26
Granted: 1992-03-31
Abstract: 내용 없음.
Patent KR-950000294-B1 (KR)
Title: Cooling element of heating parts
Inventor: KIM MYONG-HO
IPC: H05K7/20
Filed: 1989-06-02
Granted: 1995-01-12
Abstract: The apparatus makes heating parts correctly contact with a heat discharge plate, and does not increase the manufacturing processes though a plurality of heating parts exist. It comprises an elastic press part (2a) formed on a fixed plate (2) via a lancing process; a hook (2b) positioned on an end of the plate (2); a hole (2c) formed on the other end of the plate (2); a burring hole (1b) formed coaxially on the same axis of the hole (2c); a screw (S) fastening the parts with the burring hole (1b) via the hole (2c).
Patent KR-920004022-B1 (KR)
Inventor: NAKANISHI WATALU
IPC: E02D3/12
Filed: 1989-06-15
Granted: 1992-05-22
Abstract: 내용 없음.
Patent KR-920001135-B1 (KR)
Inventor: TSUZI TERUGI
IPC: C07D401/04
Filed: 1989-06-21
Granted: 1992-02-06
Abstract: 내용 없음.
Patent KR-0135284-B1 (KR)
Title: Synthesis of intermediate useful in the preparation of
Inventor: ANEEEVENO PETER B
IPC: C07H9/04
Filed: 1989-09-12
Granted: 1998-04-23
Abstract: 5-Amino-5-deoxy-1,2-O-isopropylidene- alpha -D-glucofuranose is conveniently prepared by a hydride reduction of 5-azido-5-deoxy-1,2-O-isopropylidene- alpha -D-glucuronolactone and can readily be converted to nojirimycin, deoxynojirimycin or homonojirimycin.
Patent KR-0138269-B1 (KR)
Inventor: KATSUHIKO HIEDA
IPC: H01L21/336
Filed: 1989-09-29
Granted: 1998-06-01
Abstract: 내용없음.
Patent KR-920009123-B1 (KR)
Title: Arrangement of cooling device for passenger of vehicle
Inventor: AN MUN-HUI
IPC: B60H1/32
Filed: 1989-11-14
Granted: 1992-10-13
Abstract: The cooling device is an absorption type for using waste heat of an automobile engine. The cooling device comprises a regenertor (12), an evaporator (18) and a wet steam separator (13) is  filled with an impregnating material (D). The impregnating  material  (D) is made of cellulose or sponge.
Patent KR-930010664-B1 (KR)
Inventor: YOSHINO TSUNEKAZU
IPC: G02F1/1333
Filed: 1989-12-27
Granted: 1993-11-05
Abstract: 내용 없음.
Patent KR-930001344-B1 (KR)
Inventor: SHIN KI-CHOL
IPC: C30B11/00
Filed: 1989-12-31
Granted: 1993-02-26
Abstract: 내용 없음.
Patent KR-940005345-B1 (KR)
Inventor: SAJI TETSUO
IPC: C09D5/44
Filed: 1988-08-27
Granted: 1994-06-17
Abstract: 내용 없음.
Patent KR-930011216-B1 (KR)
Inventor: KANEI SEITA
IPC: B60G3/20
Filed: 1990-01-10
Granted: 1993-11-29
Abstract: 내용 없음.
Patent KR-930009375-B1 (KR)
Inventor: HASEGAWA MIKIO
IPC: B23Q5/04
Filed: 1990-01-29
Granted: 1993-10-02
Abstract: 내용 없음.
Patent KR-930009028-B1 (KR)
Inventor: MOMOSE HIROSHI
IPC: H01L21/331
Filed: 1990-01-30
Granted: 1993-09-18
Abstract: 내용 없음.
Patent KR-930001128-B1 (KR)
Title: Method and apparatus for induction heating of gear teeth
Inventor: PFAFFMANN GEORGE D
IPC: C21D9/32
Filed: 1990-03-02
Granted: 1993-02-18
Abstract: In a process and apparatus for inductive hardening of the corrugated surface of a workpiece, in particular the toothing of a gearwheel or sprocket, a uniformly distributed hardness pattern reaching down to a controlled depth is achieved on the teeth by scanning the workpiece surface to be hardened with a single inductive heating coil (12), while the workpiece is taken past the inductive heating coil. A special final heating scanning the workpiece follows a preheating scanning the workpiece, it being possible for the preheating and final heating to be carried out at different controlled speeds. The repeated scanning of the workpiece (W) past a single inductor coil (12) permits the preheating and final heating of workpieces which cannot be taken directly past separate inductor coils in the axial direction, as is the case, for example, with planetary gearwheels having inner ring toothing and a closed end (12), or as is the case with spurgear wheels which have a flange projecting beyond the cylindrical tooth face or a radially projecting shoulder. <IMAGE>
Patent KR-920005892-B1 (KR)
Title: Method of manufacturing textile materials having cubic pattern
Inventor: PARK YONG-SOK
IPC: D06C23/04
Filed: 1990-04-21
Granted: 1992-07-24
Abstract: The manufacturing method of three-dimensional patterned thick grey fabric comprises, bonding the urethane resin film obtained by removing releasing paper after urethane  resin  is  gravure-coated onto the releasing paper of silicone  resin  with  the  base  grey fabric laid onto concave  convex  patterned  mold,  covering  with silicone pad, pressing with  heated  press  of  150-200  deg.C  to obtain same concave convex pattern as that of mold by melting  and impregnating urethane film into grey fabric, covering the  concave extracted cover sheet through  which  nylon  resin  or  EVA  resin powder is poured onto the concave convex  patterned  grey  fabric, removing the cover sheet, passing the cover sheets removed  fabric through furnace of 150-200 deg.C.
Patent KR-0140520-B1 (KR)
Inventor: KOJIMA HIROSHI
IPC: H01L21/3213
Filed: 1990-04-25
Granted: 1998-07-15
Abstract: 내용없음.
Patent KR-940011696-B1 (KR)
Title: Dielectric composite for compensating the temperature
Inventor: SONG IN-YOP
IPC: H01G4/30
Filed: 1990-04-27
Granted: 1994-12-23
Abstract: The compound has a high relative dielectric coefficient and a temperature coefficient of 30 ppm/degree C or lower. The compound is composed of BaTiO3 9-10 wt.%, TiO2 30-33 %, Nd2O3 37-51%, La2O3 10-20 %, and ZrO2 1.0-3.0 %. The sintering temperature of the compound is lower than that of the conventional one and thus, palladium can be used for internal electrode. Moreover, the size of the device made of the compound is smaller due to the higher dielectric coefficient.
Patent KR-930012253-B1 (KR)
Inventor: HORIBA YASUNOBU
IPC: B21D43/05
Filed: 1990-06-14
Granted: 1993-12-28
Abstract: 내용 없음.
Patent KR-930007689-B1 (KR)
Inventor: TADE TAKAO
IPC: B23Q1/66
Filed: 1990-06-23
Granted: 1993-08-18
Abstract: 내용 없음.