baber/WOPTO huggingface dataset:
Patent KR-950001028-B1 (KR)
Title: Process for preparing 1-dethia-2-thia cephalosporanic acid derivatives
Inventor: TEUTSCH JEAN G
IPC: C07D513/04
Filed: 1986-08-09
Granted: 1995-02-07
Abstract: The derivatives in question are the products of formula I <IMAGE>  R = either <IMAGE> Ra = an organic group; <IMAGE> R'A and R'B are either a hydrogen atom  or an alkyl radical;  ZA = single bond, sulphur, optionally oxidised, or oxygen, R3A = in particular, aryl, optionally substituted, quaternary ammonium, acetyl, carbamoyl, alkoxycarbonyl, alkyl, haloalkyl, nitrile or azido;  R4 = H or OCH3; A = in particular, H, alkali metal equivalent, ester or CO2A; CO2<(-)>;  n2 = integer equal to 0, 1 or 2; and the salts of the products of formula IA with inorganic or organic acids.
Patent KR-900001574-B1 (KR)
Title: Analytic method of f in slag
Inventor: CHOI JOO
IPC: G01N27/42
Filed: 1986-12-30
Granted: 1990-03-15
Abstract: A quantitative analysis of fluorine is accomplished by adding 6.0-7.0 M/W Na2CO3, 5.7-7.0 M/W SiO2 to the fluorine to the sampling material, mixing in and filling a crucible with the mixt., keeping the mixt.  at 1200 deg. C for one hour, dissolving it in water, and measuring quantity of fluorine with exclusive electrode of fluorine ion.
Patent KR-900004731-B1 (KR)
Title: Read only memory semiconductor device and manufacture thereof
Inventor: YOSIGAWA KUNIYOSI
IPC: H01L27/115
Filed: 1987-05-14
Granted: 1990-07-05
Abstract: (a) forming an insulation layer for element isolation and a is and type element region on a first conductive silicon substrate; (b) forming a gate deoxide layer on the element region; (c) etching certain part of the deoxide layer selectively and epitaxing the polycrystalline silicon layer on the exposed part; (d) forming the thin silicon deoxide layer on the polycrystalline layer; and (e) forming a conductive layer for floating gate electrode. The deoxide layer formed on the polycrystalline silicon layer injects or ejects the electron effectively even in thick width because of the low electric field.
Patent KR-960006950-B1 (KR)
Title: Telephone set comprising a line voltage stabilizer having a dc supply point
Inventor: FREDRIK VAN DONGEN
IPC: H04M1/76
Filed: 1987-06-13
Granted: 1996-05-25
Abstract: A telephone set comprising an active line voltage stabilizer circuit (4) provided with two output terminals 10-1 and 10-2 between which there is present a constant direct voltage which is independent of the line current. By connecting to these output terminals a series arrangement of a capacitor (14) and a resistor (18) a DC supply connection is obtained which does not affect the AC impedance of the stabilizer circuit between the wires and which shows a considerably lower output impedance than supply points known thus far in an electronic telephone set.
Patent KR-900002761-B1 (KR)
Title: Method for producing chopped strands of carbon fibers
Inventor: KITAMURA TADANORI
IPC: D01F11/12
Filed: 1987-06-16
Granted: 1990-04-28
Abstract: A chopped strand of carbon fibers with a bulk density of 0.2-0.8 g/cm3 is produced by spinning petroleum or coal based pitch and then bundling and cutting the resulting fibers into lengths of 1-50mm. The fibers are the subjected to infusibilization, carbonization and graphitization before applying an (in)organic binder so that 0.1-3.0% of binder solids adhered to the strands.  The fibers have a high strength and can be used for the reinforcement of polymers and cement.
Patent KR-910000691-B1 (KR)
Inventor: ODAWARA KAZHARU
IPC: G11B7/24015
Filed: 1987-11-05
Granted: 1991-01-31
Abstract: 내용 없음.
Patent KR-920002463-B1 (KR)
Inventor: SHORT KENNETH T
IPC: H01L21/00
Filed: 1987-11-24
Granted: 1992-03-24
Abstract: 내용 없음.
Patent KR-920006902-B1 (KR)
Inventor: HARA KENICHI
IPC: A61K8/49
Filed: 1987-12-18
Granted: 1992-08-22
Abstract: 내용 없음.
Patent KR-950001026-B1 (KR)
Title: Process for preparing penicillanic acid derivatives
Inventor: HANSEN ERIK T
IPC: C07D499/87
Filed: 1987-11-26
Granted: 1995-02-07
Abstract: PCT No. PCT/DK87/00030 Sec. 371 Date Nov. 24, 1987 Sec. 102(e) Date Nov. 24, 1987 PCT Filed Mar. 24, 1987 PCT Pub. No. WO87/06230 PCT Pub. Date Oct. 22, 1987.The present invention relates to a new process for the debromination and/or deiodination of 6,6-dihalo- and 6-monohalopenicillanic acids or derivatives thereof by treatment with dialkyl, trialkyl or diaralkyl phosphite, the desired compounds being obtained in good to excellent yield and in a high state of purity.
Patent KR-900003137-B1 (KR)
Title: Opal galss compositions
Inventor: OH JUNG-GEUN
IPC: C03C4/02
Filed: 1988-01-21
Granted: 1990-05-09
Abstract: A deep milk-white glass has the composition of 51.4-71.4 wt.% SiO2, 1-5 wt.% Al2O3, 8-16 wt.% B2O3, 10-16 wt.% CaO, 5-10 wt.% Na2O and 4.6-5.6 wt.% F2. The glass of the composition has a deep milk-white color and a good refractory, strength, hardness, corrosion-resistance and work efficiency.
Patent KR-950008125-B1 (KR)
Title: Digital convergence control circuit
Inventor: KO HAN-IL
IPC: H04N5/66
Filed: 1988-02-15
Granted: 1995-07-25
Abstract: The circuit comprises an oscillator (104) for generating a horizontal and a vertical parabola wave, a clock generator (108), a controller for using address and data generating by a cursor position adjuster (114), a micom (112) and a cursor generator (113) to control three color convergence signal processors (101-103), and a controller for sending clocks generating from a clock generator (118) to control a convergence yoke(110) according to three color processings.
Patent KR-920003725-B1 (KR)
Inventor: TSUJIHARA SUSUMU
IPC: H04N17/00
Filed: 1988-02-26
Granted: 1992-05-09
Abstract: 내용 없음.
Patent KR-910004395-B1 (KR)
Inventor: HASHIMOTO MASAHIDE
IPC: A23L3/36
Filed: 1988-03-11
Granted: 1991-06-27
Abstract: 내용 없음.
Patent KR-910004676-B1 (KR)
Title: Composition of strippable paints
Inventor: CHONG HONG-SUP
IPC: C09D5/20
Filed: 1988-04-04
Granted: 1991-07-09
Abstract: A paint composition is composed of 15-25 wt.% bonding  resin, 10-25 wt.% polyethylene resin, 2-7 wt.% silicon resin, silicon oil or fluorine resin paint, at most 1-2 wt.% surfactant, at most  0.5 wt.% silane-oraganic bonding agent, at most 1 wt.%  additive  7-15 wt.% pigment and filler, and residual amount of water and  organic solvent  as  a  diluent.  The  polyethylene  resin  has   a   good releasability, weather-resistance and chemical-resistance.
Patent KR-930006762-B1 (KR)
Inventor: KOTOAKI YASUO
IPC: B60J5/04
Filed: 1988-07-25
Granted: 1993-07-23
Abstract: 내용 없음.
Patent KR-910009118-B1 (KR)
Inventor: OHMURA HIDEO
IPC: G07D11/00
Filed: 1988-08-03
Granted: 1991-10-31
Abstract: 내용 없음.
Patent KR-970004350-B1 (KR)
Inventor: HARTMUT SCHLOMM
IPC: G21C3/16
Filed: 1988-09-15
Granted: 1997-03-27
Abstract: 없음
Patent KR-960011165-B1 (KR)
Title: Circuit for separating a composite video signal of ntsc
Inventor: LEE HO-WOONG
IPC: H04N9/78
Filed: 1988-09-22
Granted: 1996-08-21
Abstract: The circuit for compensating attenuations of a chrominance and luminance signal in NTSC complex video signal discriminators, includes a line comb filter, a frame comb filter producing the chrominance and luminance signals (CL)(YL)(CF)(YF) each, an adder(151) adding YL to low pass filtered CL, an adder(152) subtracting YF from YL to be added to YF then to be YO, an adder(153) adding CL compensated by a BPF(141) and the 1st gain control and a BPF(143) to CF compensated by a BPF(144) and the 2nd gain control and a BPF(143), an adder(155) adding CF from a multiplier to an output from the adder(153), a time domain motion detector controlling a multiplying rate K.
Patent KR-960011383-B1 (KR)
Inventor: HARADA HIROSHI
IPC: C07D307/85
Filed: 1988-10-12
Granted: 1996-08-22
Abstract: 내용 없음.
Patent KR-910007313-B1 (KR)
Inventor: POLANCO DOMINGO R
IPC: C10L1/32
Filed: 1988-10-21
Granted: 1991-09-24
Abstract: 내용 없음.
Patent KR-910009444-B1 (KR)
Title: Semiconductor memory device
Inventor: CHO SU-IN
IPC: H01L27/10
Filed: 1988-12-20
Granted: 1991-11-16
Abstract: The semiconductor memory device for reducing  the  effect  of coupling capacitance in bit line interaction  comprises;  a  large number of bit lines and  word  lines,  an  upper  sense  amplifier connected with a pair of bit lines of odd number,  a  lower  sense amplifier connected with a pair of bit lines  of  even  number,  a several cells arranged at  intersection  of  word  lines  and  bit lines, and a first sense amp activating means connected  with  the upper sense amplifier to activate the upper sense  amplifier.  The word line of memory cells connecting with  the  bit  line  of  odd number is not connected with the bit line of even number.
Patent KR-960003959-B1 (KR)
Inventor: SPRAGUE DAVID LEROY
IPC: H04N9/81
Filed: 1987-10-07
Granted: 1996-03-25
Abstract: 내용 없음.
Patent KR-920002543-B1 (KR)
Inventor: YUBUKATA TSUNEO
IPC: H04N9/64
Filed: 1989-04-29
Granted: 1992-03-27
Abstract: 내용 없음.
Patent KR-0142426-B1 (KR)
Inventor: SASAKI TOSHIO
IPC: C08F210/16
Filed: 1989-06-28
Granted: 1998-07-01
Abstract: 내용 없음
Patent KR-0143231-B1 (KR)
Inventor: AUGROS JACQUES JULIEN
IPC: A61K9/02
Filed: 1989-07-11
Granted: 1998-07-15
Abstract: 내용없음
Patent KR-910008684-B1 (KR)
Inventor: SAKADA DAKAYOSI
IPC: G08B13/00
Filed: 1989-07-29
Granted: 1991-10-19
Abstract: 내용 없음.
Patent KR-920006431-B1 (KR)
Title: Mos transistor for high voltage
Inventor: JONG UN-SUNG
IPC: H01L29/76
Filed: 1989-10-04
Granted: 1992-08-06
Abstract: The MOS transistor comprises a source and drain  regions  (2) of low concentration formed on a Si substrate (1),  a  source  and drain regions (3) of high concentration formed in the regions  (2) to form a double diffusion structure, and a gate oxide film (5), a poly  gate  (4)  and  an  insulating  layer  (6)  formed   thereon sequentially. Metallic wirings (7) are connected  to  the  regions (2). The gate oxide film (5) has a triple stacked structure with a first oxide film (51), a silicon nitride film (52)  and  a  second oxide film (53). A distance between the edge of the gate poly  (4) and the edge of the region (3)  is  determined  according  to  the maximum depletion width to obtain the high operation voltage.
Patent KR-910009244-B1 (KR)
Inventor: FUJIMURA DAKEO
IPC: B60K28/06
Filed: 1989-12-05
Granted: 1991-11-07
Abstract: 내용 없음.
Patent KR-930003703-B1 (KR)
Title: Production of red luminous fluorescent material
Inventor: YANG JUN-MO
IPC: C09K11/78
Filed: 1989-12-22
Granted: 1993-05-08
Abstract: The red light emitting fluorescent  material  of  Y2O3:Eu  is manufactured by (a) mixing 100 wt.% yttrium oxide (Y2O3) with  6.5 wt.% europium oxide (Eu2O3) with a mixed  flux  composed  of  4-10 wt.% potassium fluoride (KF), 3-15 wt.% sodium carbonate (Na2CO3), and 0.4-0.8 wt.% boric acid (H3BO3) or 0.3-0.7  wt.%  boron  oxide (B2O3), and (b) firing the  mixture  in  an  alumina  crucible  at 1300-1400 deg.C for 1.5-4 hr, crushing  the  fired  material,  and washing and drying it. The fluorescent material is  useful  for  a projection CRT.
Patent KR-930006121-B1 (KR)
Inventor: OKUTA AKIRA
IPC: C23C14/56
Filed: 1989-12-26
Granted: 1993-07-07
Abstract: 내용 없음.
Patent KR-930006389-B1 (KR)
Inventor: KUBODA TOSHIAKI
IPC: F25D17/06
Filed: 1990-02-16
Granted: 1993-07-14
Abstract: 내용 없음.
Patent KR-930002389-B1 (KR)
Inventor: KAMO MASAYOSHI
IPC: G11B5/48
Filed: 1990-04-13
Granted: 1993-03-30
Abstract: 내용 없음.
Patent KR-940000898-B1 (KR)
Inventor: MATSUMOTO OSAMU
IPC: G06F21/79
Filed: 1990-05-12
Granted: 1994-02-04
Abstract: 내용 없음.
Patent KR-0160761-B1 (KR)
Title: Device for tempering by contact of glazing
Inventor: LUC VANASCHEN
IPC: C03B23/03
Filed: 1990-06-22
Granted: 1998-11-16
Abstract: A device for tempering of a glazing by contact has two cooled compression plates and a device for cooling the peripheral surface of the glazing by air jets. The device intended to cool peripheral surfaces of the glazing consists of parallelepipedic blowing ramps placed between cooling and compression plates and in which are provided slots for the cooling air jets directed toward the peripheral surface of the glazing, and exhaust openings placed between the slots. The slots have a diameter at least equal to 1 mm and at most equal to the thickness of the glazings, and the exhaust openings having a cross section which is at least three times that of slots. The dimensions of the cooling and compression plates, as well as arrangement and/or width (B) of the ramps are such that a distance (A) between the orifices of outlet slots and peripheral surface of glazing which is opposite to it is at least two times and at most six times the diameter of the slots.
Patent KR-930011481-B1 (KR)
Title: Synchronization control circuit for digital video optical transmitting apparatus
Inventor: LEE JONG-HAENG
IPC: H04L7/033
Filed: 1990-10-25
Granted: 1993-12-08
Abstract: The circuit comprises the first frequency  divider  (21)  for dividing the field start signal into preset  numbers  by  counting it, the second freq. devider for dividing the color carrier signal by counting it, a phase comparator (24)  for  sending  out  as  an output the signal showing unequality of the two signal values from the two freq. dividers, a reset signal generator for resetting the first  freq.  divider  according  to  the  output  of  the   phase comparator, the first synchronization latch for synchronizing  the color carrier freq. from the first  freq.  divider,  and  a  phase sync. loop circuit and  the  second  sync.  latch  for  generating phase-stablized frame starting signal.
Patent KR-930011975-B1 (KR)
Inventor: SHINOMIYA KOJI
IPC: H04N9/73
Filed: 1990-12-04
Granted: 1993-12-23
Abstract: 내용 없음.
Patent KR-0123800-B1 (KR)
Inventor: SHIMA MASAHIRO
IPC: G03G9/087
Filed: 1990-12-18
Granted: 1997-11-27
Abstract: 침상의 상방에 여러개의 편침을 출퇴(出退) 가능하게 병설하고, 편침들 사이에 선단부가 위치하도록 싱카를 배설하고, 이 싱카를 요도가능하게 구성하고, 싱카의 선단부에는 편사받이부(編系受部)를 형성하며, 이 편사받이부를 편침사이에 밀어넣어 부세하는 부세수단(付勢手段)을 설하며, 이 부세수단은 탄성재로 형성하여 싱카에 착탈가능하게 취부케 함과 아울러, 부세수단의 부세력을 편사받이부에 받아 멈추어지는 편사의 장력에 따라 편사받이부의 위치가 변위되도록 설정하는 것을 특징으로 하는 횡편기에 있어서의 싱카 장치와, 선단상부의 일측면에 두께방향에 대하여 적어도 싱카의 두께 절결부를 형성하고, 이 선단상부의 일측면에 단차를 설함과 아울러 상기 절결부의 아래에 추지요( )부를 형성하여서 되는 니들 플래이트를 침상위에 각 편성침에 의해 소정간격마다 병설하고, 또한 선단에 편성사 루-프를 계지하는 계지부를 형성함과 아울러 상기 계지부쪽에 전부작용캠 당접부를 형성하고, 또한 중간부에 상기 니들 플래이트의 추지요부에 계합하는 추착부(樞着部)를 형성하고, 또한 후부에 작용캠 당접부를 형성하여서 이루어지는 싱카를 상기 니들 플래이트의 절결부에 상하 요동가능하게 배설하며, 또한 후부를 상기 니들 플래이트의 절결부의 후방에 추착되도록 형성함과 아울러, 상기 니들 플래이트에 장착한 싱카의 후부작용 캠 당접부가 상방으로 돌출하도록 중간부에 요( )부를 형성하며, 또한 선단부를 상기 니들 플래이트에 장착한 때의 싱카의 중간부의 배설되도록 형성한 스패이서를, 이 스패이서의 후부를 니들 플래이트에 추착하여 상기 싱카의 횡의 편성침의 상방에 배설하여서 되는 것을 특징으로 하는 횡편기등에 있어서의 싱카장치.
Patent KR-930005339-B1 (KR)
Title: Error correcting circuit for double azimus vtr when a change of speed
Inventor: CHON JIN-SU
IPC: H04N5/956
Filed: 1990-12-22
Granted: 1993-06-17
Abstract: The circuit provides the picture of good quality by removing the vertical/horizontal skew phenomena when the signal is reproduced at double azimuth four-heads VTR. The switches (S1,S2) controlled by the head switching pulse are connected to the four heads through the amplifiers (A1,A2,A3,A4), respectively. The switch (S3) controlled by the comparator, which compares the output signals of the switches (S1,S2), and the multiplexor (20) transmitting the data is connected to the common terminal of the switches (S1,S2). The preamp high frequency output terminal (30) is connected to the common terminal of the switch (S3).
Patent KR-930010845-B1 (KR)
Title: Graphic and character auto-separating method of video signal
Inventor: KANG MIN-SUK
IPC: H04N1/40
Filed: 1990-12-31
Granted: 1993-11-12
Abstract: The system converts a  scanner  analogue  image  signal  into digital image data, and generates  an  address  from  a  line  end signal from the scanner. A buffer circuit stores  the  image  data according to the address, or outputs stored image data via a  data bus in accordance with an external  address  to  a  microprocessor controlling the system. The microprocessor  distinguishes  between text and graphic portions of image data. It may do this by setting distinguishing windows according to block average  and  background colour illumination,  and  performing  edge  alignment  and  delay correction procedures. Processes input signal in real time  avoids software  overload  and  can  be  adapted  to   provide   halftone treatment.
Patent KR-930008240-B1 (KR)
Title: Driving apparatus of an automatically paper-feeding system
Inventor: KIM JONG-HO
IPC: G03G15/00
Filed: 1991-02-27
Granted: 1993-08-27
Abstract: The device comprises  a  halogen  lamp  detecting  means  for detecting the lights of a halogen  lamp,  a  flip-flop  means  for connecting to the halogen lamp  detecting  means,  an  oscillating means which is connected to the flip-flop means, a  counter  means for connecting to the flip-flop means and the  oscillating  means, an enable time control means for connecting to  the  halogen  lamp detecting means, a motor controller means for  connecting  to  the enable control means and the pulse  control  means,  and  a  motor drive means which  is  connected  to  the  motor  controller  way, thereby improving the exact stop control of the stepping motor and the temperature rising problem.
Patent KR-970004012-B1 (KR)
Title: Explosive containing urethane binder
Inventor: LEE JOON-WOONG
IPC: C06B43/00
Filed: 1991-05-16
Granted: 1997-03-24
Abstract: The present invention related to casting compound gunpowder which improved heat or mechanical property and stability, and had proper operation delay time recharged with gunpowder particle and filler and so forth on urethane bond agent and method of manufacturing.The present invention comprises a process of mixing liquid phase prepolymer, plasticizer, antioxidant; a process of mixing recharging like gunpowder particle(R.D.X), aluminium particle, ammonium perchlorate particle; a process of adding low molecular weight body aliphatic diol; a process of mixing isocyanate conforming to 80-100% of stoichiometric quantity need to polymer reaction with hydroxylic; a process of achieving polymer reaction of hydroxylic with isocyanate by heat hardening after recharging gunpowder slurry to coal body or mold.
Patent KR-930012030-B1 (KR)
Inventor: SUZUKI TOSHIO
IPC: B01D36/00
Filed: 1991-05-17
Granted: 1993-12-23
Abstract: 내용 없음.
Patent KR-0169135-B1 (KR)
Inventor: KUWAJIMA TERUAKI
IPC: C09D143/00
Filed: 1991-05-20
Granted: 1999-01-15
Abstract: 수소 가스의 발생을 상당히 감소시키며, 소수성 세그먼트(segment)로부터 일어나는 문제점이 없는 수성 금속 도장 조성물이 기술되어 있다.  본 조성물은 장기간 동안 저장할 수 있으며, 양호한 외관 및 필름 특성(예를들면, 내수성 및 기재와의 접착 특성)을 갖는 금속 도막을 제공한다.  본 발명의 수성 도장 조성물은 (a) 에틸렌 단량체 및 하기 일반식(I)로 표시되는 포스페이트 단량체를 공중합시켜 제조되는, 1,000 내지 50,000 의 수평균 분자량, 15 내지 200 의 산가 및 20 내지 200 의 히드록실가를 갖는 아크릴 수지; 및 (b) 안료를 포함한다(상기 아크릴 수지는 상기 안료 100 중량부를 기준으로 2 내지 500 중량부의 양으로 존재함): 
     
       
     
     상기식에서, X 는 수소원자 또는 메틸 그룹을 나타내며, Y 는 탄소원자 2 내지 4 개를 갖는 알킬렌 그룹을 나타내고, n 은 3 내지 30 의 정수이다.
Patent KR-940006350-B1 (KR)
Title: Image data controller and display system
Inventor: MIZUDOME ATSUSHI
IPC: G02F1/133
Filed: 1991-06-25
Granted: 1994-07-18
Abstract: An image data control apparatus comprises: a first circuit to generate image data; a second circuit to discriminate a display mode from the main body side; and a third circuit to convert the image data in accordance with the discriminated display mode. <IMAGE>   <IMAGE>
Patent KR-930002360-B1 (KR)
Title: Compasses
Inventor: SONG NAK-UNG
IPC: B43L9/02
Filed: 1991-06-26
Granted: 1993-03-29
Abstract: The compass includes the threefold center needle for strictly holding a drawing paper so that it can prevent a center hole  from expanding, and make itself rotate without trembling.  The  compass comprises a needle hole (3c) having a screwed groove  (3a)  and  a dish groove (3b); the three-fold needle (1)  formed  under  a  pin housing (3); a center needle (2) having a  needle  head  (2a)  and pointing a circular center; a needle metal (4)  assembled  with  a spring (8); a needle rod body (6) having a conical shaft (5)  with a support groove (5a), and a male-screwed shaft (6c) with a spring groove (6d); a conical housing (7) having an elastic hook (7b) and a conical hole (7a).
Patent KR-940005180-B1 (KR)
Title: Feed composition for breeding pigs with n-3 fatty acid-accumulated pork
Inventor: YO YONG-JUN
IPC: A23K1/18
Filed: 1991-08-20
Granted: 1994-06-13
Abstract: The feed for producing pork having much of n-3 fatty acid is prepd. by mixing linseeds and perilla seeds (mixing ration = 100:1-10), and re-mixing the obtd. mixt. 70-90 % and/or fish powder 2-5 %, oats 0.1-10 % as a promoting agent of cholesterol decline, carbohydrate 10-20 % and santoquin 0.1-10 % as antioxidant to obtain the final product. The obtd. feed is useful for producing pork contg. a lot of n-3 fatty acid by feeding to pig 7-15 day before buchering day.
Patent KR-100213514-B1 (KR)
Title: Process for the production of carboxylic acid anhydrides
Inventor: BEEVOR ROBERT GEORGE
IPC: C07B61/00
Filed: 1991-10-02
Granted: 1999-08-02
Abstract: The solubility and stability of rhodium catalysts in rhodium-catalysed carbonylation of alkyl esters or alkyl ethers under substantially anhydrous conditions to produce carboxylic acid anhydrides is improved by the use of co-promoters selected from the group:  1,3-dialkyl-4-methylimidazolium iodide;  1,3-dialkyl-4-ethylimidazolium iodide;  1,3-dialkyl-4-n-propylimidazolium iodide;  1,3-dialkyl-4-isopropylimidazolium iodide;  1,3-dialkyl-4-n-butylimidazolium iodide  1,3-dialkyl-4-sec-butylimidazolium iodide  1,3-dialkyl-4-tert-butylimidazolium iodide; 1,3-dialkyl-2,4,5-trimethylimidazolium iodide and mixtures thereof where the alkyl groups are independently C1 to C20 alkyl.
Patent KR-940008481-B1 (KR)
Title: Interrupt circuit in control system
Inventor: KWON YONG-HAN
IPC: G06F13/24
Filed: 1991-10-10
Granted: 1994-09-15
Abstract: The interrupt circuit enables a computer to do another jobs between transmitting data into control systems and receiving data from it. In control system comprising a master control unit to transmit/receive data to/from slave control units and a computer to transmit/receive control data to/from the master control unit, the interrupt circuit comprises the first D flip-flop (34) and the second D flip-flop (35) outputting according to control data (30) from master control unit and address decoding signal (31,33); the first clock divider (40); the third and the fourth D flip-flops (36,38); the first and the second inverters (37); tri-state buffer (39).
Patent KR-950013817-B1 (KR)
Inventor: OHMAE TADAYUKI
IPC: C08L53/00
Filed: 1991-10-12
Granted: 1995-11-16
Abstract: 내용 없음.
Patent KR-950004318-B1 (KR)
Title: Emergency brake system for automobile
Inventor: KIM NAM-CHAE
IPC: F16D65/10
Filed: 1991-11-12
Granted: 1995-04-28
Abstract: The system is applied to a wheel drum in addition to the normal hydraulic brake, and comprises an annular block (4) which screws onto a slightly tapering brake drum (2). The block has a set of ratchet shaped cogs (3) around its circumference. In normal driving the block rotates with the drum, but if brake failure occurs, the drivers operates a switch to activate a solenoid (5) thus engages a pawl (6) with the cogs (3), which cause the block to screw up on the tapered drum thus applying an emergency braking force.
Patent KR-940009544-B1 (KR)
Title: Automatic fine-slow apparatus and control method of vcr
Inventor: LEE KWANG-HUI
IPC: G11B15/467
Filed: 1991-11-20
Granted: 1994-10-14
Abstract: The automatic fine-slow device includes an envelope detecting part for detecting a serial envelope waveform in according with an amplitude of the playback high-frequency signal applied from a video head; an analog/digital converter for sampling an output level of the detecting part and then processing-memorizing it as a digital value; a Schmidt trigger for Schmidt shaping a control pulse by the control head in case of a slow mode; and a MICOM for controlling a slow tracking data in accordance with the Schmidt trigger signal.