baber/WOPTO huggingface dataset:
Patent KR-930002398-B1 (KR)
Title: Magnetic thin film for magnetic head
Inventor: KWON SANG-IL
IPC: G11B5/31
Filed: 1989-12-29
Granted: 1993-03-30
Abstract: The magnetic thin film for a high density  magnetic  head  is characterized by  forming  a  chromium  (Cr)  outer  film  (3)  of 200-4000 angstroms, a silicon  oxide  (SiO2)  outer  film  (4)  of 200-4000  angstroms  and  a  chromium  (Cr)  outer  film  (5)   of 1000-10000 angstroms in order between the sand dust magnetic  thin film (1) and the deposited glass (2). The film (3)  increases  the magnetic permeability, the film (4) prevents the corrosion of  the magnetic film (1) and inhibits the decline  of  the  permeability, and the film (5) prevents the bubble-generation of the glass (2).
Patent KR-970000039-B1 (KR)
Inventor: YAMAMOTO SHIGERU
IPC: A01K87/06
Filed: 1990-03-27
Granted: 1997-01-04
Abstract: 내용 없음.
Patent KR-940001427-B1 (KR)
Inventor: OCHII KIYOFUMI
IPC: G11C11/412
Filed: 1990-04-14
Granted: 1994-02-23
Abstract: 내용 없음.
Patent KR-930001497-B1 (KR)
Title: Cavity elimination method
Inventor: PARK SUNG-KAP
IPC: H01L21/70
Filed: 1990-05-03
Granted: 1993-03-02
Abstract: The semiconductor memory device includes a contact hole  (11) formed into a polysilicon film  (10)  formed  on  a  semiconductor substrate and having predetermined width and depth, and  an  inter layered insulation film (13) formed on the contact hole (11).  The method for removing voids generated at the inner part  of  contact hole (11) in flatting the interlayed  insulation  film,  comprises heat-teating the film (13) under O2 atmosphere  to  flat  the insulation film (13), thereby removing the voids in the contact hole (11). The heat-treating process comprises filling a furnace with N2 gas at 650 deg.C, rising the temperature up to  900  deg.C at the rate of 10 deg.C/min, injecting O2 gas into the furnace  to heat-treat the film at 900 deg.C, and reducing the temperature  up to the initial temperature at the rate of 3.3 deg.C/min  under  N2 atmosphere.
Patent KR-0148487-B1 (KR)
Inventor: YOSHINAGA KENJI
IPC: C08F220/06
Filed: 1990-05-15
Granted: 1998-12-15
Abstract: 내용 없음.
Patent KR-920004828-B1 (KR)
Title: Manufactured method of air sole
Inventor: LEE SONG-YUL
IPC: A43B13/00
Filed: 1990-06-14
Granted: 1992-06-19
Abstract: The shoe is manufactured by combining a  heel  sheet  over  a sole sheet of a normal shape with the lower and upper  dies  (6,7) having a intermediate die piece (8) in  between  them.  The  lower sole sheet is placed over the lower die having  recesses  (6')  to receive the intermediate die piece  over  the  sole  sheet  to  be covered with the heel sheet and pressed with the upper die  having recesses to match the lower die recesses. The sheets of resin  are half vulcnized to form recesses (4',5') with  the  die  piece  (8) removed. The separated sheets are rematched without the piece  (8) and with air foam generating agent in each recess  to  be  pressed for joining and vulcanized with air foams withing the bags  formed between the sheets to produce a cushion for the  heel  portion  of the sole.
Patent KR-920005544-B1 (KR)
Title: Releasing agent and method of producing thereof
Inventor: KIM U-SANG
IPC: B29C33/60
Filed: 1990-06-26
Granted: 1992-07-06
Abstract: The high concentrated master batch  for  thermoplastic  resin comprises 25-93 wt.% of the thermoplastic resin for molding;  2-25 wt.% of the synthetic silica; and 5-50 wt.% of the cpd. of  master batch component. Pref. the thermoplastic resin is the  high  conc. master batch of styrene based resin, engineering plastic resin  or polypropylene resin. Pref. the high conc. master  batch  component is higher fatty acid bisamide, aliphatic  hydrocarbon  based  wax, org. polysiloxane, higher fatty acid ester wax.
Patent KR-930004437-B1 (KR)
Inventor: LIROV YUVAL V
IPC: G06F11/25
Filed: 1990-07-28
Granted: 1993-05-27
Abstract: 내용 없음.
Patent KR-920011090-B1 (KR)
Inventor: KANAZAWA HIDETOSHI
IPC: F24F11/02
Filed: 1990-07-27
Granted: 1992-12-26
Abstract: 내용 없음.
Patent KR-950008434-B1 (KR)
Title: Electronic watch
Inventor: BERNARD ERIC MATEZ
IPC: G04C3/00
Filed: 1990-09-25
Granted: 1995-07-31
Abstract: It comprises a standard electronic movement (13) held in the case (1) by a casing ring in synthetic material (15) and which also contains an accumulator (30) of large size pinched between two conducting plates (16, 29). The upper plate (16) is covered by an insulating sheet (18) pierced by a hole (19) via which the small tongue (14) for housing the movement battery comes into contact with the small plate (16). The other pole of the accumulator is connected to the movement by the back (3), the case (1) and the dial (10). The casing ring (15) carries photovoltaic cells (21) lit through cut-outs (22) in the dial. The time piece may advantageously be produced in small series and its power reserve is very high. <IMAGE>
Patent KR-940002073-B1 (KR)
Title: Noise reduction system for fan heater
Inventor: CHA KYONG-HWAN
IPC: F23N5/16
Filed: 1990-12-05
Granted: 1994-03-16
Abstract: The system consists of a rotation detector for the fan, a microprocessor which calculates the rotation frequency of the motor and controls the overall system, a signal generator which generates a signal according to the output of the microprocessor, a phase changer which is synchronized by the pulse signal of the signal detector and reverses the phase of the signal, and the amplifier which sends the reversed phase signal to the speaker installed close to the fan.
Patent KR-920011063-B1 (KR)
Title: Auto-gain control circuit for a camera
Inventor: LEE CHOL-KYU
IPC: G06F15/78
Filed: 1990-12-31
Granted: 1992-12-26
Abstract: The automatic  gain  control  circuit  of  a  camera  detects rotating speed and state of an iris motor and calculates automatic gain control level. The calculated automatic gain control level is fed back to an automatic gain  control  circuit  to  maintain  AGC level constant. The circuit includes an iris state  detector  (12) connected to a microcomputer, a microcomputer  (13)  for  reducing AGC level variation by detecting level of video signal, a clamping circuit (14) connected between an AGC circuit (4) and a  processor (5), and an analog switching circuit (15) connected between an AGC circuit (4) and an AGC detector (15). The automatic  gain  control circuit suppresses oscillation  of  AGC  gain  due  to  mechanical characteristic of an iris motor.
Patent KR-940007155-B1 (KR)
Title: Plague oscillator for synchronization
Inventor: KO JE-SU
IPC: H04L7/10
Filed: 1990-12-31
Granted: 1994-08-06
Abstract: The synchronous flag generating device of a pointer in a synchronous multiplexer includes a state detecting circuit for generating a stable or unstable state signal, a state converting circuit for generating a state converting signal, a flag bit generating circuit for generating a flag bit alarm signal, and an alarm transmitting circuit for transmitting a stable arrival signal to an external central processing unit in response to the stable state signal and transmitting an alarm signal to the central processing unit in response to the unstable state signal, thereby minimizing an influence caused by a temporary unstable state of a circuit.
Patent KR-930008613-B1 (KR)
Title: Process for adapting filament of cathode-ray tube
Inventor: KANG SAM-KU
IPC: H01J9/02
Filed: 1991-06-05
Granted: 1993-09-10
Abstract: The filament electro-depositing  method  is  accomplished  by coating an electro-deposition solution by allowing a filament from a  supply reel  to  pass  an  electric  conductive   system   for electro- deposition  and  an  electro-depositing  tub,  drying  the electro- deposition  solution  covering  the  filament  in  a   dry portion, and inspecting the  electrically-deposited  state  in  an inspection   portion.    By    successively    performing     the electro- depositing process from the beginning to the inspection of the completion  thereof,  and  blocking  the   leakage   of   the electro-deposition  solution,  productivity  is   heightened   and excellent workability is provided.
Patent KR-930011126-B1 (KR)
Title: Method of manufacturing dram having a capacitor cell
Inventor: BAE DONG-JU
IPC: H01L27/108
Filed: 1991-06-12
Granted: 1993-11-24
Abstract: The capacitor of a DRAM cell is mfd. by (a) forming  a  first aperture exposing a source diffusion region of  the  MOST  on  the semiconductor substrate, (b) covering a  first  polysilicon  layer and an  oxide  film  on  the  substrate,  (c)  covering  a  second polysilicon layer on the oxide film, (d) forming a second aperture exposing one part of the first polysilicon layer, (e)  covering  a third polysilicon layer on the substrate, (f)  etching  the  third polysilicon layer, the residual polysilicon layers and  the  oxide film, and (g) forming an isolation region isolating a storage node comprising the polysilicon  layers  from  other  adjacent  storage node.
Patent KR-950003127-B1 (KR)
Inventor: MOUNT GORDON L
IPC: F25B43/04
Filed: 1991-06-19
Granted: 1995-04-01
Abstract: 내용 없음.
Patent KR-930006153-B1 (KR)
Title: Magnetic mattress
Inventor: NO KYU-SANG
IPC: A47C27/14
Filed: 1991-07-11
Granted: 1993-07-08
Abstract: a foamed cushion base plate (1), in which coil springs (2) are placed;  a  nonwoven  cushion  layer (5), in  which  semi-circular  hollow  (3')  protrusions  (3)  are arranged, and which  are  placed  above  (1);  a  synthetic  resin heat-insulating layer (7), which has  laminated  protrusions  (6); and a wave-like bump (8), on which  circular  multi-polar  magnets are arranged; a laminated upper foamed cushion layer  (10),  which has accomodating holes (9)  of  (3),(6);  tubes  (13),  which  are attached to inside of an outer mattress cover (12), and  in  which linear multi-polar magnets (14) are inserted. The mattress ensures comfortable sleeping.
Patent KR-0124369-B1 (KR)
Inventor: OTSUKA HIROMU
IPC: G07F5/22
Filed: 1991-10-01
Granted: 1997-12-11
Abstract: 본 발명의 자동판매기는 핸디타입의 바코드리더의 표면에 각종 조작지령을 부여하기 위한 각종 조작키와, 상기 바코드리더로 판독해낸 바코드를 눈으로 봐서 식별할 수 있는 표시가능한 표시기를 배설함과 동시에, 그 바코드정보나 키조작종보를 유선 또는 무선으로 자동판매기의 제어부에 출력하는 전송제어부를 가지는 입력장치를 구비하는 한편, 자동판매기 본체 내부에는 상기 바코드리더로부터의 바코드정보나 상기 키조작 정보를 입력하여 소정의 동작을 행할 수 있는 자동판매기를 제어함과 동시에 이 동작에 관련하는 정보를 상기 표시기에 표시하기 위한 표시데이터를 상기 바코드리더로 전송하는 제어장치를 가지는 것이다.
Patent KR-950010362-B1 (KR)
Inventor: OKKUNO SHINTTAROW
IPC: B66F17/00
Filed: 1991-10-02
Granted: 1995-09-16
Abstract: 내용 없음.
Patent KR-100227930-B1 (KR)
Title: 1,4-di(mono-or poly)hydroxyalkylamino-9,10-anthraquinone for dyeing human keratinous fibres, composition for dyeing human keratinous fibres containing them in combination with azo and nitrobenzene dyes
Inventor: ALEX JUNINO
IPC: A61K8/35
Filed: 1991-10-09
Granted: 1999-11-01
Abstract: The invention relates to the use of 1,4-bis[(mono- or polyhydroxyalkyl)amino]-9,10-anthraquinones: 
<IMAGE>
 where R represents a C2 to C6 monohydroxyalkyl radical or a C3 to C6 polyhydroxyalkyl radical, for the dyeing of human keratinous fibres, to cosmetic dyeing compositions containing such anthraquinones, the dyeing compositions for keratinous fibres containing such anthraquinones in combination with nitro dyes of the benzene type, azo dyes, for direct dyeing, and/or with oxidation dyes for oxidation dyeing, and also to processes for dyeing keratinous fibres by direct dyeing or by oxidation dyeing.
Patent KR-960000741-B1 (KR)
Inventor: INOUE YOSHIO
IPC: C08J5/12
Filed: 1991-10-10
Granted: 1996-01-12
Abstract: 내용 없음.
Patent KR-940002306-B1 (KR)
Title: Laser electrics circuit artworking method and apparatus
Inventor: HWANG JIN-SU
IPC: H05K3/00
Filed: 1991-12-12
Granted: 1994-03-21
Abstract: The method makes use of laser beams to get a fine PCB film by drawing circuits directly on the film, and uses thermal resistent silver layered film as a base film to protect the film against laser beam's high energy. To draw a circuits: beams from a laser beam generator (7) are precisely adjusted through an output control unit (10) and are focused under 0.1 mm focus diameter with a beam expanding mirror (8) and an F-θ focus lens (12); a laser controller (13) stored with circuit drawing data and connected with a beam on/off unit (11) and a galvanometer (9) equipped with two rotating reflection mirrors. The divice obtains a wanted circuit diagram by selectively eliminating the upper layer of a film (17) on a working bench(16).
Patent KR-940003533-B1 (KR)
Title: Auxiliary ejecting apparatus
Inventor: MUN SON
IPC: F02M25/07
Filed: 1991-12-24
Granted: 1994-04-23
Abstract: The auxiliary exhausted-gas injection apparatus is constructed that an exhaust multi-pipe, an exhaust gas filter, a heatproofing device, and a surge tank are provided and connected to an auxiliary exhausted-gas sprayer, thereby increasing the fuel spraying effect.
Patent KR-970008525-B1 (KR)
Title: Data communication of a plural micom
Inventor: CHO KI-YOUNG
IPC: G06F15/16
Filed: 1991-12-26
Granted: 1997-05-24
Abstract: Through the transmission line(L1), chip selection signal is output from the main microcomputer(MM) to the sub-microcomputer of the terminal(20). And after transmitting data to the sub-microcomputer through the clock and data transmission lines(L2,L3), obtains the input data from corresponding sub-microcomputer. Following the key input of the matrix key part(k), it can perform the key function, when there is no key input, it may carry out the 3rd routine and process the communication. Then the received data is displayed at the display part(D). As sub-microcomputer uses lines(L1,L2,L3) only for the purpose of communicating with main microcomputer, the number or port used by sub-microcomputer may be greatly reduced.
Patent KR-940005742-B1 (KR)
Title: Battery separate membrane
Inventor: HA SUNG-MIN
IPC: H01M2/14
Filed: 1991-12-31
Granted: 1994-06-23
Abstract: The layer reduces an electric resistance, has a good peel strength, and improves productivity. The surface treating material applied to the battery isolating layer of high density polyethylene, silica and a plasticizer includes a vinyl-tris silane, vis-tetra sulpoon, vinyl-tris silane, isoprophyl-trisourcetearoil-titanate, isoprophyl-tridodecyl bezene sulpoon titanate, vinyl-trimetoxy silane. gamma-chroloprophyl tri etoxy silane. The weight ratio of surface treating material is 0.1 - 10 phf.
Patent KR-940010201-B1 (KR)
Title: Ds3/ds4 signal multiple method and circuit by parallel process method of transmission device
Inventor: SO YONG-KYU
IPC: G11B15/10
Filed: 1992-01-07
Granted: 1994-10-22
Abstract: The circuit provides a parallel processing multiplexing system that controlls operation speed and multiplexing DS3 to DS4 and improves the system reliability. The circuit comprises: a synchronizing unit generating the synchronizing compensation signal, an 1-3 read clock generator generating the read clock for reading the synchronized value of DS3, an 1-3 multiplexer forming the data to subframe structures fitting DS4 frame structure, a parallel/serial convertor converting each data formed with subframes to serial data.
Patent KR-100239811-B1 (KR)
Title: A bearing ring with low sliding friction for an optical disk
Inventor: TAKAHASHI KENJI
IPC: G11B7/24
Filed: 1992-03-12
Granted: 2000-01-15
Abstract: A bearing ring for an optical disk has sufficiently high firmness and satisfactory sliding properties. The ring (38) is formed by cutting a laminate structure comprising a first layer (42) formed of a firm film of material having a sufficiently high modulus of rigidity and second layer (44) formed of a film having a very low coefficient of sliding friction. The first layer (42) is preferably a film of polyethylene terephthalate and the second layer (44) is preferably a polyethylene having a very high molecular weight of one million or more. The second layer can also be formed of nylon 6, 6, polyacetal and fluorocarbon resins. <IMAGE>
Patent KR-950003517-B1 (KR)
Title: Manufacturing method of solder bump of semiconductor device
Inventor: KO JUN-SU
IPC: H01L21/60
Filed: 1992-04-15
Granted: 1995-04-13
Abstract: The metal bridge phenomenon is provented and the thickness of a photo-resist is decreased by using the method applied to a flip chip effectively. The method comprises steps: (A) forming a PR layer (13) by laminating the solid PR layer on an aluminium pad (12); (B) forming an insulating layer (14) on the PR layer (13); (C) etching the insulating layer (14) to form an opening; (D) etching the PR layer to form a bump area (15) having width greater than opening width of the insulating layer (14); (E) forming a glue layer (16), expansion-protecting layer (17); and a solder bump (19) on the aluminium pad; and (F) removing the PR layer and the insulating layer.
Patent KR-100245289-B1 (KR)
Inventor: KENETSJAY BANG
IPC: H01L21/00
Filed: 1992-05-15
Granted: 2000-02-15
Abstract: 하나의 챔버와, 이 챔버안에 배열된 지지대와, 그리고 이 지지대의 상부면상에 반도체 웨이퍼를 하강시키는 장치에 의해서 특징을 가지는 웨이퍼 냉각장치가 제공된다. 지지대의 상부면에는 홈이 제공되어 있어서, 웨이퍼와 지지대의 지지면 사이로 유입된 가스를 웨이퍼 둘레로 배출시켜, 웨이퍼가 얇은 가스층상에서 지지면을 따라 ＆quot;미끄러지는＆quot;것을 최소화 시킨다. 본 발명에 따른 냉각방법은 지지대의 홈이 제공되어 있는 냉각면을 통해서 다수의 핀을 웨이퍼와 접하도록 연장시키는 단계와, 이러한 다수의 핀을 지지대 안으로 삽입시켜서 웨이퍼를 냉각면상으로 하강시키고 웨이퍼와 지지대 사이로 유입된 가스를 지지대의 홈안으로 밀어넣는 단계와를 포함하고 있다.
Patent KR-950005567-B1 (KR)
Title: Pannel & driving method of plazma display
Inventor: KIM DAE-IL
IPC: H01J11/40
Filed: 1992-06-30
Granted: 1995-05-25
Abstract: The plasma display scree is formed with an anode on a top glass panel and discharge electrodes (13) on the back glass panel. A dielectric is formed on discharge electrode. A cathode is set at right angles to the anode. Further discharge electrodes are set between the anode and the cathode in a vertical direction and are strip formed. The discharge electrode directions may also be parallel to the cathode and the second electrode can be half width. Cathode and first discharge electrodes are capacitively coupled in the same plane.
Patent KR-100227884-B1 (KR)
Inventor: FISCHER REINER
IPC: C07F9/655
Filed: 1992-07-13
Granted: 1999-11-01
Abstract: 본 발명은 신규한 3-아릴-4-하이드록시-△ 3 -디하이드로푸라논 및 3-아릴-4-하이드록시-△ 3 -디하이드로티오페논 유도체, 다수의 이들 제조방법, 및 살충제, 살비제, 제초제 및 살진균제로서의 이들의 용도에 관한 것이다. 
     본 발명에 이르러, 하기 일반식(I)의 신규한 3-아릴-4-하이드록시-△ 3 -디하이드로푸라논 및 3-아릴-4-하이드록시-△ 3 -디하이드로티오페논 유도체를 밝혀냈다. 
     
       
     
     상기 식에서, X는 알킬, 할로겐, 알콕시 또는 할로게노알킬을 나타내고, Y는 수소, 알킬, 할로겐, 알콕시 또는 할로게노알킬을 나타내며, Z는 알킬, 할로겐 또는 알콕시를 나타내고, n은 0 내지 3의 수를 나타내거나, X 및 Z 라디칼은 이들이 결합된 페닐 라디칼과 함께 구조식 의 나프탈렌 라디칼을 형성하며, 여기에서, Y는 상기 언급한 의미를 갖고, G는 수소(a) 또는 그룹 
     
       
     
     를 나타내고, A 및 B는 동일하거나 상이할 수 있으며, 수소, 또는 각각 할로겐에 의해 임의로 치환된 알킬, 알케닐, 알키닐, 알콕시알킬 또는 알킬티오알킬, 또는 이중원자에 의해 임의로 차단된 시클로알킬, 또는 각각 할로겐, 알킬, 할로게노알킬, 알콕시, 할로게노알콕시 또는 니트로에 의해 임의로 차단된 아릴, 아르알킬 또는 헤트아릴을 나타내거나, A 및 B가 이들의 결합된 탄소원자와 함께 이중원자에 의해 임의로 차단되고 그 임의로 치환된 포화 또는 불포화환을 형성하며, D는 산소 또는 황을 나타내고, E 는 1당량의 금속이온 또는 암모늄 이온을 나타내며, L 및 M은 산소 및/또는 황을 나타내고, R 1 은 각각의 경우에 임의로 할로겐-치환된 알킬, 알케닐, 알콕시알킬, 알킬티오알킬, 폴리알콕시알킬 또는 이중원자에 의해 차단될 수 있는 시클로알킬, 또는 임의로 치환된 페닐, 임의로 치환된 페닐알킬, 치환된 헤트아릴, 치환된 페녹시알킬 또는 치환된 헤트아릴옥시알킬을 나타내며, R 2 는 각각 할로겐에 의해 임의로 치환된 알킬, 알케닐, 알콕시알킬 또는 폴리알콕시알킬, 또는 각각 임의로 치환된 페닐 또는 벤질을 나타내고, R 3 , R 4 및 R 5 는 서로 독립적으로 각각 할로겐에 의해 임의로 치환된 알킬, 알콕시, 알킬아미노, 디알킬아미노, 알킬티오, 알케닐티오, 알키닐티오 또는 시클로알킬티오를 나타내거나, 각각 임의로 치환된 페닐, 페녹시 또는 페닐티오를 나타내며, R 6 및 R 7 은 서로 독립적으로 수소, 또는 각각 할로겐에 의해 임의로 치환된 알킬, 알케닐, 알콕시 또는 알콕시알킬을 나타내거나, 임의로 치환된 페닐 또는 임의로 치환된 벤질을 나타내거나, R 6 및 R 7 이 함께는 산소에 의해 임의로 차단된 알킬렌 라디칼을 나타내며, 단, 이들 화합물중, 3-(2-메톡시페닐)-4-하이드록시-△ 3 -디하이드로푸란-2-온, 3-(2-클로로페닐)-4-하이드록시-△ 3 -디하이드로푸란-2-온, 3-(2-메틸페닐)-4-하이드록시-△ 3 -디하이드로푸란-2-온, 3-(2-플루오로페닐)-4-하이드록시-△ 3 -디하이드로푸란-2-온은 제외된다.
Patent KR-950001832-B1 (KR)
Title: Break control circuit for spindle motor
Inventor: KU BON-HO
IPC: G11B19/20
Filed: 1992-08-04
Granted: 1995-03-03
Abstract: The circuit provides the exact control of spindle motor by blocking the supply of anti-rotation signal. The circuit includes the pulse generator (2) which generates the delay pulse (LTD), the counter (3) which counts the clock signal (LCK), the latch (6) which latches the counted value of counter (3), the controller (9) which outputs the anti-rotation input (OM-) and output control signal (/BRAKE), the latch (5) which latches the counted value of counter (3), the memory (7) which saves the counted value for stopping the spindle motor, and the comparator (8) which outputs the compared output (BSTP).
Patent KR-960003867-B1 (KR)
Title: Surface mounted laser diode
Inventor: KO HYUN-CHOL
IPC: H01S3/101
Filed: 1992-09-02
Granted: 1996-03-23
Abstract: a stem(1) where laser diode electrode(2), a photo diode electrode(3) and common electrode(4) are formed; heater(5) attached to the stem(1); laser diode(9) and photo diode(8) which connected to the electrodes(2,3,4) with wire; a cap(11) covering the heater having the laser diode and laser diode.
Patent KR-960000708-B1 (KR)
Inventor: OHACHI SHIGEO
IPC: H01L23/42
Filed: 1992-09-18
Granted: 1996-01-11
Abstract: 내용 없음.
Patent KR-960010257-B1 (KR)
Inventor: KATAYAMA MASAHARU
IPC: F04D25/08
Filed: 1992-11-20
Granted: 1996-07-26
Abstract: 내용없음.
Patent KR-950006299-B1 (KR)
Title: Tape drive device for vcr
Inventor: SONG KUN-HYOK
IPC: G11B15/665
Filed: 1992-12-02
Granted: 1995-06-13
Abstract: The braking module comprises a main brake and a soft brake to set up to each pole for a supply reel and a gained reel. The first operation module operates by contacting selectively the brakes according to operation mode of the main brake and the soft brake. In the case of the high speed rewinding mode, the second operation module isolates the brake module from the supply reel and a gained reel.
Patent KR-920010312-B1 (KR)
Title: 유체중 칼륨이온의 측정
IPC: G01N33/84
Filed: 1988-04-02
Granted: 1992-11-26
Abstract: 내용 없음.
Patent KR-0123370-B1 (KR)
Title: Aluminum-free monocyclopentadienyl metallocene catalysts for olefin polymerization
Inventor: CANICH JOANN MARIE
IPC: C07F17/00
Filed: 1991-06-21
Granted: 1997-11-12
Abstract: The invention relates to a process for olefin polymerisation at a temperature of from -100 to 0°C or 100 to 300°C using a catalyst system of the following formula :wherein: M is Zr, Hf or Ti and is in its highest formal oxidation state (+4, d⁰ complex);(C₅H<sub>5-y-x</sub>R<sub>x</sub>) is a cyclopentadienyl ring which is substituted with from zero to five substituent groups R, "x" is 0, 1, 2, 3, 4 or 5 denoting the degree of substitution, and each substituent group R is, independently, a radical selected from a group consisting of C₁-C₂₀ hydrocarbyl radicals, substituted C₁-C₂₀ hydrocarbyl radicals wherein one or more hydrogen atoms is replaced by a halogen atom, C₁-C₂₀ hydrocarbyl-substituted metalloid radicals wherein the metalloid is selected from the Group IV A of the Periodic Table of Elements, and halogen radicals, or (C₅H<sub>5-y-x</sub>R<sub>x</sub>) is a cyclopentadienyl ring in which two adjacent R-groups are joined forming a C₄-C₂₀ ring to give a polycyclic cyclopentadienyl ligand;(JR'z-l-y) is a heteroatom ligand in which J is an element with a coordination number of three from Group VA or and element with a coordination number of two from Group VI A of the Periodic Table of Elements, and each R' is, independently a radical selected from a group consisting of C₁-C₂₀ hydrocarbyl radicals, substituted C₁-C₂₀ hydrocarbyl radicalswherein one or more hydrogen atoms is replaced by a halogen atom, and "z" is the coordination of number of the element J;each Q may be independently, hydride, C₁-C₅₀ hydrocarbyl radicals, substituted hydrocarbyl radicals wherein one or more hydrogen atom is replaced by an electron-withdrawing group such as a halogen atom, or alkoxide radical, or C₁-C₅₀ hydrocarbyl-substituted metalloid radicals wherein the metalloid is selected from the Group IV-A of the Periodic Table of Elements, provided that where any Q is a hydrocarbyl such Q is different from(C₅H<sub>5-y-x</sub>R<sub>x</sub>),or both Q together may be an alkylidene, olefin, acetylene or a cyclometallated hydrocarbyl,"y" is 0 or 1; when "y" is 1, B is a covalent bridging group containing a Group IV A or V A element,L is a neutral Lewis base; and "w" is a number from 0 to 3,[A]⁻ is a labile, bulky anion which is either a single coordination complex having a plurality of lipophilic radicals covalently coordinated to and shielding a charge bearing metal or metalloid centre or an anionic complex containing a plurality of boron atoms.