baber/WOPTO huggingface dataset:
Patent KR-890000980-B1 (KR)
Title: Image signal distributing circuit
Inventor: KIM JONG-KOOK
IPC: H04N5/46
Filed: 1985-10-25
Granted: 1989-04-15
Abstract: According to a special purpose in the broadcasting station, this circuit acquires many image signals by using only one image signal. Especially, this image signal distributing circuit can control the differential gain and the differential phase, compensates for the cable according to whether the cable being normal or not, and enhances the color stable factor by returning the direct level of the output.  According to the input, this circuit controls a differential gain and the difference of a phase.
Patent KR-890001871-B1 (KR)
Title: Address controler
Inventor: CHONG MIN-HYONG
IPC: H04N5/445
Filed: 1985-12-30
Granted: 1989-05-27
Abstract: The circuit controls address lines which read and write the video signal in memory for frame store type high resolution TV. The circuit converts the sequential scanning type video signal input to the digital code and writes to the memory at normal speed and accesses at twice the speed utilizing the clock pulse having twice the speed than the sampling frequency of A/D converter.
Patent KR-930010379-B1 (KR)
Inventor: BROZE GUY
IPC: C11D17/00
Filed: 1986-03-28
Granted: 1993-10-23
Abstract: 내용 없음.
Patent KR-900000836-B1 (KR)
Title: Power control circuit of co2 laser
Inventor: CHANG KUN-HO
IPC: H01S3/00
Filed: 1986-03-28
Granted: 1990-02-17
Abstract: The power control circuit of CO2 laser supplies the optimal power to the discharging tube which outputs a laser, and generates the same laser output as the pulse signal by controlling the discharging current in oscillating a laser.  By the automatic feedback of supplying power and controlling the input voltage, the circuit supplies the discharge maintaining voltage and generates the same laser output as the pulse mode by controlling the discharging current.
Patent KR-890002932-B1 (KR)
Title: Reactor for polymerization in concentrated systems
Inventor: SILVANO GORDINI
IPC: C08G85/00
Filed: 1986-06-05
Granted: 1989-08-12
Abstract: The reactor is used for polymerisation process in which polymer is formed in solution or suspension in organic media at the highest possible concentrations thus allowing a considerable energy saving. Polymerization reactor for systems with high polymer concn. is in the form of a cylinder having a vertical axis and upper and lower heads which communicate with a vertical-axis extruder via an opening in its circumferential wall.  The reactor has a vertical-axis stirrer which has one or more horizontal arms bearing vertically aligned blades. As these blades sweep round they interdigitate with one or more sets of stationary blades located adjacent their paths.
Patent KR-950007902-B1 (KR)
Inventor: LU CHUNG-SHIN
IPC: H04N9/64
Filed: 1986-07-03
Granted: 1995-07-21
Abstract: 내용 없음.
Patent KR-890001499-B1 (KR)
Title: Apparatus for pressure and solidification of plant texture
Inventor: SADAKE DOSHIHIGO
IPC: B30B15/30
Filed: 1986-08-20
Granted: 1989-05-06
Abstract: The appts. comprises a rotatable screw having an upstream and a downstream end.  A tubular forming device is disposed around the screw and cooperates to define a quality changing chamber.  A device feeds the material to be treated to the upstream end of the screw.  A heater is associated with the tubular forming device to heat the material to maintain the temp. within the chamber at a predetermined value during operation.  A driver is connected to the screw to rotate the screw to deliver the material fed to the quality chamging chamber while compressing the material.  The material is delivered trhough the chamber toward the downstream end of the screw while the material is heated.  The material is gradually changed in quality and solidified due to the compression by the screw and the heating.  A sensor senses a parameter varying depending upon a load applied to the screw to generate a signal.
Patent KR-900006411-B1 (KR)
Title: Hitch diagnose system
Inventor: GURUMODO SADORU
IPC: G05B23/02
Filed: 1986-09-01
Granted: 1990-08-30
Abstract: The diagnostic apparatus diagnoses a failure of the machine by comparing a relation between the displacement amount of a variable for making the variable coincide with a target value while the machine is normally operated and the response time required thereof with that while the machine is actually operated. Accordingly the apparatus can diagnose the failure based on transient response, while the machine is actually operated, so that early detection of the failure is possible without additional measures.
Patent KR-900002830-B1 (KR)
Title: Process for the preparation of impact-resistant polyamide
Inventor: CHANG SANG-HUI
IPC: C08G69/04
Filed: 1986-12-27
Granted: 1990-05-01
Abstract: A polyamide having improved elongation and impact-resistance is prepd. by copolymerization of the mixt. of W-lactam and polyoxyalkylene diamine of formula H2NR1CH2-(OCH2R1)3-NH2 [R1= C1-3 alkylene; n= higher than 3 , and carboxylic of formula terminated butadiene acrylonitrile copolymer in the presence of water and organic acid as cat.  The W-caprolactam is mixed by 60-80 wt.% selected from epsilon caprolactam, epsilon-capronic acid, amino dodecanic acid or W-lauryl lactam.  I is mixed by 20-40 wt.% selected from polyoxypropylene diamine or polyoxyteramethylene diamine.
Patent KR-900000081-B1 (KR)
Title: Process for production of calcium carbonate
Inventor: MOON JONG-SUL
IPC: C01F11/18
Filed: 1987-05-04
Granted: 1990-01-19
Abstract: A fine calcium carbonate having a particle size 100-1000nm is produced by continuously reacting 5-30 wt.% calcium chloride with ammonium hydroxide, surfactant or inorganic salt under the condition of carbon dioxide 1-10atm at 10-30 C in the pressurized reactor.  The organic salt is sodiumtripolyphosphate, ZnCl2, MgCl2 or Al2(SO4)3. The calcium carbonate is used in the field of paper, rubber, plastic, pigment and cosmetic industry.
Patent KR-900000805-B1 (KR)
Title: Sensing device for the backward of vehicle
Inventor: KIM CHANG-BOK
IPC: B60R16/00
Filed: 1987-05-09
Granted: 1990-02-17
Abstract: The circuit for detecting the rear obstacle with an ultrasonic, such as turning on the LED corresponding to the safe, watch, or danger state as well as announcing with the synthesized voice, includes a reference timing circuit (1), an oscillator (2), transmitters (3,3'), receivers (4,4'), amplifiers (5,5'), rectifiers (6,6'), distance calculators (7,7') for calculating the distance from the obstacle with the time difference of the reflected ultrasonic wave, LEDs (10), a ramp voltage generator (21), an analog switch (22), a sample and hold circuit (23), a voice synthesizer (24), an amplifier, and a speaker (26).
Patent KR-890004877-B1 (KR)
Title: Taping method and apparatus for semiconductor wafer
Inventor: RYU GI-SOK
IPC: H01L21/68
Filed: 1987-07-21
Granted: 1989-11-30
Abstract: The taping method and apparatus for preventing chip dispersion comprises the following of : locating the taping roller longer than the wafer at the upper site of the wafer and contacting the taping roller with the wafer by raising the wafer clinger and then rotating the axis of a part of taping roller palte supporting the taping roller.  As the result, vapour generation is prevented by the shrinking force of vapour protected film formed on the taping roller.
Patent KR-950005031-B1 (KR)
Inventor: YOSHITOSHI YU
IPC: G11B7/135
Filed: 1987-02-18
Granted: 1995-05-17
Abstract: 내용없음
Patent KR-970001510-B1 (KR)
Inventor: VAUGHAN JOAN
IPC: C07K14/00
Filed: 1988-01-12
Granted: 1997-02-11
Abstract: 내용 없음.
Patent KR-910001683-B1 (KR)
Inventor: SHIMOMURA NOBUO
IPC: A47J31/42
Filed: 1988-02-22
Granted: 1991-03-18
Abstract: 내용 없음.
Patent KR-960005140-B1 (KR)
Inventor: PETER LLOYD OREN
IPC: A61K9/22
Filed: 1988-02-26
Granted: 1996-04-22
Abstract: 내용 없음.
Patent KR-910002506-B1 (KR)
Title: Book-cover fold machine
Inventor: PARK HAENG-JOO
IPC: B42C7/00
Filed: 1988-07-19
Granted: 1991-04-23
Abstract: The auto-folder for folding the  flap  of  the  book  wrapper consists  of  book  transfer  guide  (3)  of  U=shape  having  the supplying section (2) and discharging section (2') on the left and right sides on the frame of folder  (1),  opening  piece  (59)  of arrow V-shape for widening the space between  the  book-cover  and the wrapper, a knife (27) for cutting the  upper  surface  of  the binded book, a forming device for forming a  folding-line  of  the wrapper, and inner/outer separater plates (45,45'). The supporting piece (16') of the opposite sides is moved by the piston rod (25') of an air cylinder (25), and the clamp-carrier (16)  which  has  a fixea clamp member (16") on one-sides.
Patent KR-910008775-B1 (KR)
Inventor: YAMAMOTO NAOKI
IPC: C08L51/08
Filed: 1988-09-16
Granted: 1991-10-21
Abstract: 내용 없음.
Patent KR-0133918-B1 (KR)
Title: An ophthalmic contact lens and multifocal lens
Inventor: COHEN ALLEN L
IPC: A61F2/16
Filed: 1988-11-10
Granted: 1998-04-20
Abstract: An ophthalmic contact lens with a phase plate and a pure refractive portion within its optic zone.
Patent KR-920002089-B1 (KR)
Title: Output circuit of driving ic of ccd type
Inventor: KIM EUN-GU
IPC: H01L29/76
Filed: 1988-12-22
Granted: 1992-03-10
Abstract: a  level  shifting  circuit  (LSC)  for shifting the voltage level of the input pulses to drive  a  charge coupling device (C1); a p type MOS transistor (MP) and an  n  type MOS transistor (MN) for outputting pulses through a  common  drain to drive the charge coupling device (C1); and a complementing type push- pull inverter connected to the MOS transistors. The ratio  of the W/L value of the p type MOS transistor (MP) to that of  the  n type MOS transistor MN is at least 3:1.
Patent KR-920005423-B1 (KR)
Inventor: KITA YASUO
IPC: F02D45/00
Filed: 1989-03-31
Granted: 1992-07-03
Abstract: 내용 없음.
Patent KR-920005262-B1 (KR)
Inventor: TANAKA TOSHIYUKI
IPC: G11B7/08
Filed: 1989-05-04
Granted: 1992-06-29
Abstract: 내용 없음.
Patent KR-0131378-B1 (KR)
Title: Anticoagulant peptide alcohols
Inventor: KRSTENSKY JOHN L
IPC: A61K38/00
Filed: 1989-05-09
Granted: 1998-04-11
Abstract: This invention relates to peptide derivatives of the formula X-A1-A2-A3-A4-A5-A6-A7-A8-A9-A10-ol which are useful anticoagulant agents.
Patent KR-0134775-B1 (KR)
Inventor: NISHIZAWA HIROTAKA
IPC: H01L29/73
Filed: 1989-05-31
Granted: 1998-04-20
Abstract: 내용없음.
Patent KR-910003076-B1 (KR)
Title: Make up composition
Inventor: LEE KON-KOOK
IPC: A61Q1/02
Filed: 1989-07-08
Granted: 1991-05-18
Abstract: A make-up cosmetic contains soft focus  powders  obtained  by adsorbing 10-40 wt.% titanium dioxide to mica. Pref. the  cosmetic is prepd. by blending an emulsified foundation  with  0.5-20  wt.% focus powders, blending  white  powders  with  0.5-70  wt.%  focus powders or blending an eye-shadow and a cheek  rouge  with  5.0-75 wt.% focus powders. The make-up cosmetic has  a  good  soft  focus effect and an ultraviolet ray intercepting effect.
Patent KR-920007164-B1 (KR)
Title: 3-d projection apparatus
Inventor: LEE DONG-HUI
IPC: G02B27/22
Filed: 1989-07-31
Granted: 1992-08-27
Abstract: The device for increasing the optical efficiency of projected beam and  the  thermal  stability   of   LCD   panel,   separates non- polarized beam into polarized beams from by prism and projects the polarized beams on the LCD or slide film.  The  device  having non- spherical reflex mirror (1), lamp  (2),  arch-shape  spherical reflex mirrors (3)(4), condenser system (6) having  optical  guide device (5) and condenser lenses  (13)(14),  LCD  panels  (11)(12), projecting lenses (15)(16), comprises a heat absorbing filter (7), polarization prism (8) at the rear of the mirror (4); flat  reflex mirrors (9)(10) for reflecting incident beam in the  perpendicular direction; condenser lenses at the lower of the mirrors (9)(10).
Patent KR-920004404-B1 (KR)
Inventor: KITAJAWA MASAHIRO
IPC: G06F13/362
Filed: 1989-09-20
Granted: 1992-06-04
Abstract: 내용 없음.
Patent KR-0148259-B1 (KR)
Inventor: ODA KENJO
IPC: H01R13/639
Filed: 1989-10-26
Granted: 1998-09-15
Abstract: 내용없음
Patent KR-930002713-B1 (KR)
Title: Method for improving the properties of rubber adding to poly-glcidyl methacrylate
Inventor: SO KON
IPC: C08J3/24
Filed: 1989-11-11
Granted: 1993-04-09
Abstract: This invention relates to improving the physical property  of rubber by adding polyglycidyl methacrylate (PGMA) to the  standard rubber composed of natural rubber, sulphur, vulcanizing  promotor, zinc oxide, antioxidant and carbon black. The vulcanization of the rubber compound  is  carried  out  for  20-100  minutes  at   the temperature  of  100-300  deg.C.  The  PGMA  (molecular  weight  = 1,000-300,000, intrinsic  viscosity  =  0.1-0.5)  is  obtained  by polymerizing glycidyls in a bulk or tetrahydrofuran  solution  and the addition amount of PGMA is 0.1-3.0 phr.  The  rubber  modified with PGMA has a good tensile strength, high elongation  ratio  and improved aging property.
Patent KR-920004385-B1 (KR)
Title: Chain free-charge circuit an power supply
Inventor: CHO SOO-WOO
IPC: G11C11/408
Filed: 1989-11-18
Granted: 1992-06-04
Abstract: The circuit includes a pad (1)  for  receiving  chain  enable signals, and a schmidt trigger (2) for using start-up  signals.  A control section (5) is connected to the rear end  of  the  shcmidt trigger (2) and uses start-up signals, while the rear end  of  the control section (5) is connected to a NAND gate (ND) and buffering inverters (I1-I3). A pre-charging means is installed at the  front of the output buffering inverter (I3) and between the pad (1)  and the schmidt trigger (2) to prevent the floating  phenomenon.  With the circuit, the pre-charge can be more speedily carried out,  and the latch-up phenomenon can be prevented.
Patent KR-910000233-B1 (KR)
Inventor: SHIMAZAKI TORU
IPC: G10K11/34
Filed: 1988-06-30
Granted: 1991-01-23
Abstract: 내용 없음.
Patent KR-970005899-B1 (KR)
Title: Acrinium ester labelling and purification of nucleotide probes
Inventor: ARNOLD LYLE JOHN
IPC: G01N33/58
Filed: 1989-06-03
Granted: 1997-04-21
Abstract: Methods for the construction, labelling and subsequent purification of nucleic acid probes containing primary amines with acridinium esters 4-(2-succinimidyloxycarbonyl-ethyl)phenyl10-methylacridinium-9-carboxy late fluorosulfonate). The method for attaching acridinium esters to probes uses high (0.1 to 50mM) acridinium ester concentrations achieved using organic solvent in concentrations of 20% to 80% by volume, and may be carried out either in solution, or with one or the other of the acridinium ester or the probe suspended in solution. Purification (the separation of labelled probe from unlabelled probe and free label) involves (1) first removing most of the free acridinium ester label from probe using rapid separation techniques, then (2) removing substantially all remaining free label from the probe and separating labelled probe from unlabelled probe, involves specific applications of ion exchange, reverse phase or hydroxyapatite HPLC.
Patent KR-930011599-B1 (KR)
Inventor: ROBBINS CLYDE
IPC: H04N7/167
Filed: 1990-01-24
Granted: 1993-12-13
Abstract: 내용 없음.
Patent KR-930002020-B1 (KR)
Inventor: KANEHARA KOOICHI
IPC: G07B15/00
Filed: 1990-02-02
Granted: 1993-03-20
Abstract: 내용 없음.
Patent KR-930001170-B1 (KR)
Title: Parts of pipe fitting
Inventor: KANG DOK-MO
IPC: F16L58/04
Filed: 1990-07-21
Granted: 1993-02-20
Abstract: The packing method of connecting part of a pipe comprises the steps: forming a adhesive layer  on  one  surface  of  a  laminate sheet; covering the outside surface of the connecting  part  of  a pipe with the laminate formed with the adhesive layer  and  fixing by a pad; heating the laminate sheet on the surface  of  the  pipe with a heater for foaming and heat-shrinking of the laminate.  The laminate sheet is mfd. by heat-melting  or  vacuum-extruding,  the second sheet  comprising  polyolefinic  resin  compsn.  contg.  a crosslinking agent on at least one  surface  of  the  first  sheet comprising polyolefinic resin compsn. contg. a foaming  agent  and crosslinking agent.
Patent KR-940008274-B1 (KR)
Inventor: TANABE YOSHIYUKI
IPC: F02D41/20
Filed: 1990-11-16
Granted: 1994-09-09
Abstract: 내용 없음.
Patent KR-100221893-B1 (KR)
Title: Digital signal processor
Inventor: HOKAMI DADASHI
IPC: G11B20/10
Filed: 1990-11-20
Granted: 1999-09-15
Abstract: A digital signal processing circuit (8) for processing and recording data at various selectable rates, having an input/output circuit (40, 41) for receiving and outputting a digital signal; a recording circuit for generating a recording signal based on a digital signal received by the data signal processing circuit; a playback circuit (48) for retrieving recorded data; and a demodulation circuit for demodulating retrieved data. The processing and recording rates are determined by control data supplied to the circuit either via an operator or from a recorded signal.
Patent KR-940006536-B1 (KR)
Inventor: HAYASHI MIKIO
IPC: B41J2/485
Filed: 1990-12-06
Granted: 1994-07-22
Abstract: 내용 없음.
Patent KR-930012136-B1 (KR)
Title: Trouble diagnosing method of multi-processor functions
Inventor: OH SE-UNG
IPC: G06F11/30
Filed: 1990-12-26
Granted: 1993-12-24
Abstract: This method provides a fast  and  accurate  fault  diagnosis. This system comprises a system diagnosis checker (12), a diagnosis object generator  (11),  a  fault  board  detector  (13),   which constitute a system control  board,  multiple  central  processing devices,  and  an  input/output  processing  board.   The   method comprises the steps of: providing the diagnosis types;  outputting the diagnosis object  table;  supplying  the  information  on  the table; writting and transmitting  the  results;  transmitting  the results to the fault  board  detector;  outputting  the  diagnosis information sheet; and telling the diagnosis  information  to  the user.
Patent KR-100223096-B1 (KR)
Inventor: GIDEON INTORATAA
IPC: G06F11/36
Filed: 1990-12-29
Granted: 1999-10-15
Abstract: 본 발명은 중앙 처리 유니트(CPU) 온 칩과 통합되어 있으며 제어기 및 코프로세서를 포함하는 내부 메모리 맵 레지스터상의 내용을 관측하는 방법 및 장치를 제공한다. 상기 CPU는 내부 메모리의 호출이 요구되는 경우에 제1 신호를 표명하며 정상적으로 내부 및 외부 메모리 기억 장소의 동시 호출을 할 수 있는 제2 신호를 불활성화시킨다. 이러한 방식으로, 내부 메모리의 내용은 실(real) 시간에 관측될 수 있다.
Patent KR-0166945-B1 (KR)
Inventor: HIDEAKI FUJI
IPC: B29C48/64
Filed: 1989-12-27
Granted: 1999-03-20
Abstract: 내용 없음.
Patent KR-0169087-B1 (KR)
Title: Biodegradable articles based on starch and process for producing them
Inventor: BASTIOLI CATIA
IPC: C08L1/00
Filed: 1990-03-08
Granted: 1999-03-20
Abstract: PCT No. PCT/EP90/00375 Sec. 371 Date Nov. 5, 1990 Sec. 102(e) Date Nov. 5, 1990 PCT Filed Mar. 8, 1990 PCT Pub. No. WO90/10671 PCT Pub. Date Sep. 20, 1990.Formed articles comprising destructurized starch, an ethylene-acrylic acid copolymer and a product of the interaction of starch and ethylene-acrylic acid copolymer wherein the starch not bound to the copolymer is in the form of particles having sizes below 1 micron. The water content of such articles is lower than the one usually present in the starch. Said formed articles can also contain urea in an amount no higher than 30% by weight and/or ammonia in an amount not higher than 0.5% by weight. The process for obtaining such articles comprises the steps of extruding starch, an ethylene-acrylic acid copolymer and optionally water, urea and/or ammonia at a temperature ranging from 90 DEG  to 150 DEG  C., reducing the water content to values lower than 6% by weight and injection molding or extrusion blowing the resulting composition.
Patent KR-0176714-B1 (KR)
Inventor: TATSUMI TETSUYA
IPC: H01L21/302
Filed: 1991-01-21
Granted: 1999-04-15
Abstract: 본원 발명은 고융점 금속실리사이드층과 다결정 실리콘층으로 이루어진 폴리사이드막을 플론가스를 사용하지 않고 고이방성, 저오염성, 고선택성, 고속성으로 에칭할 수 있는 방법에 대한 것이다. 
     본원 발명의 방법에 의하면, 불소계 가스에 최소한 HBr을 첨가하여 이루어진 에칭가스를 사용하여 폴리사이드막을 에칭함으로써 주로 레지스트재료와 Br과의 반응생성물에 의해 측벽을 보호하면서 이방성 공정을 실현할 수 있다. 
     불소계가스 또는 HBr을 단독으로 사용하여 웨이퍼표면에서의 균일공정에 대한 오버에칭을 행함으로써 고속성 및 개선된 기판선택성을 실현할 수 있다. 
     오버에칭공정은 반응생성물을 산화시켜 측벽보호 효과를 증강시키고 이방성을 향상시키도록 산소플라즈마처리로 진행된다. 
     끝으로, 에칭중 발광스펙트럼 강도의 변화를 모니터하여 고융점 금속실리사이드층의 에칭종료점을 결정함으로써 에칭조건의 정확한 세팅을 가능하게 한다.
Patent KR-0178996-B1 (KR)
Inventor: HONG KI-KAK
IPC: H01L29/92
Filed: 1991-02-11
Granted: 1999-03-20
Abstract: 본발명은 커패시터 용량을 증대시킬 수 있도록 한 반도체 메모리소자의 커패시터 제조방법에 관한 것으로, 반도체기판상에 소자격리용 필드산화막, 다결정실리콘과 캡산화막이 적층구조로 된 게이트, 소오스 및 드레인영역을 차례로 형성한 후 전면에 질화막, 산화막을 차례로 도포하고 산화막을 RIE 하는 공정과, RIE 에 의해 남은 산화막을 마스크로 하여 노출된 질화막을 제거하고 캡산화막이 소정의 두께가 되도록 식각하는 공정과, 그위의 소정부분에 스토리지 노드, 유전체막, 플레이트로 된 커패시터를 형성하는 공정으로 이루어진다. 
     산화막과 질화막으로 된 측벽을 마련하여 질화막을 돌출된 형상으로 해서 스토리지 노드의 굴곡효과를 증대시키기 때문에 커패시터의 용량이 증가되게 된다.  또한, 스토리지 노드와 콘택의 자동정렬에 따라 포토에칭 공정을 생략할 수 있는 공정 단순화의 이점도 있다.
Patent KR-950000497-B1 (KR)
Inventor: TODA HARUKI
IPC: G11C11/4096
Filed: 1991-03-08
Granted: 1995-01-24
Abstract: 내용 없음.
Patent KR-950003937-B1 (KR)
Inventor: YAMAGUCHI TAKEHISA
IPC: H01L21/20
Filed: 1991-04-03
Granted: 1995-04-21
Abstract: 내용 없음.
Patent KR-950010510-B1 (KR)
Inventor: CHIEN SHI-HAI
IPC: A63H17/39
Filed: 1991-04-10
Granted: 1995-09-19
Abstract: 내용 없음.
Patent KR-950000882-B1 (KR)
Title: Method of preparing high purity magnesium hydroxide
Inventor: CHOE CHOL-SU
IPC: C01F5/14
Filed: 1991-05-06
Granted: 1995-02-03
Abstract: The high purity magnesium hydroxide is produced by (a) treating a debrominated magnesium chloride hydrate (MgCl26H2O) soln. with an ammonia soln., and removing precipitates, (b) treating the supernatant with lime, and removing gypsum-precipitates, (c) heat-concentrating the supernatant, and removing the precipate, (d) cooling the supernatant, and separating and removing the crystal, (e) concentrating the supernatant at 134 deg.C, and separating and dehydrating the magnesium chloride crystal to obtain a high purity magnesium chloride, (f) heating and hydrolyzing it at 600 deg.C to obtain magnesia, and (g) keeping it in 15 % ammonium hydroxide soln. for at least 1 hr. The magnesia useful as fine ceramics is obtained by roasting the high purity magnesium hydroxide.
Patent KR-940010129-B1 (KR)
Inventor: SHIMIZU YOSHITAKE
IPC: G03G15/08
Filed: 1991-05-17
Granted: 1994-10-21
Abstract: 내용 없음.
Patent KR-100191114-B1 (KR)
Title: Re-usable transport and packaging device
Inventor: KLAUS GLEFFE
IPC: B65D19/44
Filed: 1991-06-21
Granted: 1999-06-15
Abstract: A device of this type for gentle use with mechanically fragile roller products 9 consists of a cuboid frame structure having a rectangular basic frame 1 and vertical supports 2, 2' arranged on the basic frame. Extending parallel to the longitudinal sides of the basic frame are stabilising rails 8, 8' which connect the top ends of the supports to one another. Each of the two supports is equipped in each case with two joints 6, 6' and 7, 7' which allow the supports to be folded over and collapsed. 
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Patent KR-940002909-B1 (KR)
Inventor: TANAKA MUTSUO
IPC: G08B25/08
Filed: 1991-08-10
Granted: 1994-04-07
Abstract: 내용 없음.
Patent KR-930010270-B1 (KR)
Title: Color braun tube exposing apparatus
Inventor: CHOE JONG-ON
IPC: H01J9/22
Filed: 1991-08-22
Granted: 1993-10-16
Abstract: The apparatus  comprises  a  light  source,  Y  cam  (13),  a component (11) which changes driving distance of the light  source between light source and the cam, an angle changer  which  changes the possible angle of rotation, and the driving part  (11c)  which rotates along the tangent of radius  of  the  bearing  (12a)  when changing the rotation angle so as to prevent the variation of  the rotation center.
Patent KR-940003045-B1 (KR)
Title: Charge coupled device
Inventor: JONG HON-JUN
IPC: H04N5/353
Filed: 1991-10-15
Granted: 1994-04-11
Abstract: The vertical clock driving method drives CCD by inserting dummy waveform between VCCD driving waveforms to reduce noise of VCCD.
Patent KR-100194414-B1 (KR)
Title: 무선전화기의 비밀번호에 따른 링발생방법
Filed: 1991-10-25
Granted: 1999-06-15
Abstract: 본 발명은 무선전화기의 비밀번호에 따른 링발생방법에 관한 것으로, 특히 하나의 고정장치에 다수의 휴대장치가 설치된 무선전화기에 있어서 각 휴대장치에 비밀번호를 부여하여 전화가 걸려올 시 해당 비밀번호 호출에 따라 해당 휴대장치에 링이 발생되도록 제어하는 방법에 관한 것이다. 
     다수의 휴대장치를 갖는 무선전화기에 있어서 다수의 휴대장치에 각각 해당 비밀번호를 할당하여 전화호출시 해당비밀번호를 입력시킴에 따라 원하는 휴대장치에 링이 발생되도록 하여 통화를 형성함으로 걸려운 전화를 받아 원하는 휴대장치로 통화 전환을 해야 하는 번거로움을 없앨 수 있으며 개인 사생활의 침해를 방지할 수 있고 제품의 기능 향상에 기여할 수 있다.
Patent KR-940008276-B1 (KR)
Inventor: KIJIMA GENJI
IPC: F02D45/00
Filed: 1991-11-19
Granted: 1994-09-09
Abstract: 내용 없음.