baber/WOPTO huggingface dataset:
Patent KR-820000706-B1 (KR)
Title: Television tuner
Inventor: CARTER G
IPC: H03J5/08
Filed: 1976-08-17
Granted: 1982-04-28
Abstract: A tuner with capacitative diodes controlled beat oscillator of which the output signal has differing amplitude with varying frequency.  For tuning to various channels there are selected respective direct tuning voltages.  A mixer is coupled with the oscillator.  A circuit stage couples a part of the selected tuning voltage to the mixer.  This voltage biases the mixer so that for oscillator signals of low amplitude there is a higher mixer amplification than for oscillator signals of higher amplitude.  The mixer may have a transistor with an input electrode which receives the high frequency signals, the signals of the beat oscillator and the tuning direct voltage.
Patent KR-820002283-B1 (KR)
Title: Solar cell array
Inventor: JORDAN J
IPC: H01L31/042
Filed: 1978-08-21
Granted: 1982-12-13
Abstract: The solar cell array is formed serisely on the surface of the common substrate from the conductive films and from the semiconductive second films.  The first films and the second films are removed selectively to consists of the solar cell.  The exposure part of the first films is evaporated with the first insulating materials.  The second electric conductive material which is connected by the exposure part of the first film evaporates the third films.  After the first insulating material is discovered from the solar cell, the third film is electrically connected with the upper surface of the second films and the first films.
Patent KR-800000718-B1 (KR)
Title: Method of manufacturing sea water soap
Inventor: BAE DONG SOON
IPC: C11D9/10
Filed: 1979-03-26
Granted: 1980-07-23
Abstract: The title method was described for the prepn. of seawater soap with super washing power. A fat was heated to 50≰C and treated with proper sodium hydroxide and then the saponifind soap was added to salt water having boume density of 25≰C properly. The product was heated for 30min at 96≰C and aged for 30min, then solidified to give seawater soap.
Patent KR-830002724-B1 (KR)
Title: 제직중 원형직기틀 정지시키는 장치
IPC: D03D37/00
Filed: 1979-08-25
Granted: 1983-12-09
Abstract: 내용 없음.
Patent KR-840000894-B1 (KR)
Title: "high phosphate process for making low calcium,smooth flow xanthan gum"
Inventor: EMPEY RICHARD A
IPC: C12P19/06
Filed: 1980-05-20
Granted: 1984-06-26
Abstract: Low calcium-contg. Xanthan gum having smooth fluidity is prepd. by culturing and fermenting Xanthomonas campestris in an aq. medium, which is free of the calcium ion. 0.7-1.0% phosphate is added to the medium. The generally permitted content of calcium is less than 0.04 wt. %. Produced Xanthan gum finds its applications in salad-dressing, soup, sugar syrup, cream toothpaste, shampoo, had cream, canned fruit, etc.
Patent KR-840001544-B1 (KR)
Title: Test circuit for mos deuices
Inventor: DRAHEIM PETER
IPC: H01L21/66
Filed: 1980-09-05
Granted: 1984-10-04
Abstract: A test circuit for use in an MOS device includes two inputs, a first input which is responsive to a test signal of opposite polarity to that of the supply voltage, and a second ouput which is responsive to a test signal of the same polarity as that of supply voltage but of a substantially higher magnitude than that of the supply voltage.
Patent KR-840001086-B1 (KR)
Title: Method for reforming a used tubular mold for continuous casting
Inventor: METTLER DIETHELM
IPC: B23K20/08
Filed: 1980-11-05
Granted: 1984-08-01
Abstract: A spent tubular continuous casting mold is rejuvenated by grinding the damaged areas on the inner surfaces, introducing abrasive material, closing the mold ends moving the mold and material against one another so that the inner surfaces are eroded then galvanically coating the inner surfaces. The movement is pref. produced by rotating the mold about its longitudinal axis while it remains approximately horizontal. The inner surfaces are pref. recalibrated by explosive forming following abrasion. The method markedly improves the mold's surface quality for electrocoating and a minimum amount of material is actually removed.
Patent KR-830001504-B1 (KR)
Inventor: KIM YOUNG DUK
IPC: C08L77/00
Filed: 1981-12-19
Granted: 1983-07-30
Abstract: 내용 없음.
Patent KR-840001315-B1 (KR)
Title: Process for preparing quinazoline derivatives
Inventor: UEDA IKUO
IPC: C07D239/86
Filed: 1984-05-18
Granted: 1984-09-11
Abstract: Quinazoline derivs. (I; Ra1, Rb1=C2-7 alkoxycarbonyl; R4=H, alkyl, OH, alkoxy, alkenyloxy, dialkyl amino; Ra2=acyl; A1= -N=CR4, R5-N-C=O; R5=alkyl, alkenyl), used as antiallergy agents, were prepd. by the reaction of II with Ra2OH or its reactive derivs.  Thus, 2.5g diethyl (6-amino-4-quinazol-inylamino) methylene propandioate, 1.2g pyridine and 55ml CH2Cl2 were stirred at 0≰C and 1.06g of isobutylchloride was added.  The mixt. was stirred at 0≰C and at room temp, for 20min. Ice was added and extracted with CHCl3, gave 1.28g cystalline diethyl[6-isobutylamino-4-quinazolinylamino) methylene  propandioate.
Patent KR-920006633-B1 (KR)
Inventor: MORIOKA AKIRA
IPC: G11B5/62
Filed: 1984-09-18
Granted: 1992-08-10
Abstract: 내용 없음.
Patent KR-890004180-B1 (KR)
Title: Computer input multiplexer
Inventor: HAMANO HUMIO
IPC: H04L13/00
Filed: 1984-09-20
Granted: 1989-10-23
Abstract: The terminal selects operation mode through matrix based pin group combinations.  A matrix has groups of function setting inputs for choosing different types of functions such as interface operation modes and other.  The matrix allows selection of a large number of functions with a small number of input signals.
Patent KR-900000484-B1 (KR)
Title: Level changing circuit
Inventor: UENO MASAHIRO
IPC: H03K19/0185
Filed: 1984-12-19
Granted: 1990-01-30
Abstract: The circuit converting circuit for transforming differential input voltages into an output voltage comprises a voltage-tocurrent converter for transforming the differential input voltages into differential currents.  The current detector is coupled to the voltage-to-current converter for detecting the differential currents and providing a voltage output corresp. to the detected differential currents.  A current amplifier is coupled to the current detector for producing a current output corresp. to the amplified voltage output of the current detector.
Patent KR-850000697-B1 (KR)
Title: Process for preparing 1-(acylamino-aryloxy)-2-hydroxy-3-alkinyl-aminopropanes
Inventor: KOPPE HERBERT
IPC: C07C253/30
Filed: 1985-01-24
Granted: 1985-05-15
Abstract: I [R1 = ethyl, isopropyl; R2 = H; R3 = H, C1-3 alkyl; R4 = C1-3 alkyl; or R3R4 = (CH2)n, n = 4-6  were prepared as, e.g., antiarrhythmics. Thus, 2-cyano-4-n-propionylaminophenol and KOH were added into 1-(2-methyl-butyne-1-il-3-)-3-acetidynol in benzylalcohol with stirring and the resultant compd. was processed by various steps to give 1-(2-cyano-4-n-propionylaminophenoxy)-3(2-methylbutynyl-3- amino-2-)-2-propanol.
Patent KR-940004824-B1 (KR)
Inventor: NIEMAN ANDREW L
IPC: F16J15/32
Filed: 1985-12-10
Granted: 1994-06-01
Abstract: 내용 없음.
Patent KR-880001071-B1 (KR)
Title: Producing method fpr gradular foods
Inventor: SHIN YONG-DAL
IPC: A23L7/196
Filed: 1985-12-18
Granted: 1988-06-22
Abstract: Granular foods with lower hygroscopicity and acid value are formulated from 10-50 salts, 5-50 plant protein hydrolysates, 5-50 sugars, 0.5-30 seasonings, 0.5-30 spices, 0.5-20 wt.% animal or vegetable fats and binding materials.  Thus, a mixt. of 286 salts, 286 plant protein hydrolysates, 95 seasonings, 95g spices is charged into a preheated spray-granulator and preheated to < 60≰C. The mixt. is spray-coated with 48g liq. cattle oils and later with 95g of 1% gua gum soln. at the inlet temp. of 60≰C and the outlet temp. of 55≰C, and shaped into granules.  The granules are screened with a 16 mesh sieve to give 786g granular foods.
Patent KR-890003447-B1 (KR)
Title: Apparatus for introducing a process gas into a treatment chamber
Inventor: FERGUSON WILLIAM B JR
IPC: B01F5/00
Filed: 1986-01-22
Granted: 1989-09-21
Abstract: A process gas is brought into the liquid-gas contact area (80) surrounding a liquid spraying device (2) for spraying the liquid to be treated into a treatment chamber (40).  Surrounding the device (2) are two concentric gas ducts defining an inner and an outer annular passages (12,24).  A horizontal, helical gas supply duct (30) is arranged around the liquid spraying device (2).  The outer flow passage (46) includes a damper means (70) which is adapted to adjust the cross-sectional flow area at the inlet of the passage (46) and thereby to regulate the gas supply to the outer gas discharge duct. The plurality of blades (50) are extended outwardly from the inner shell (11) to inner annular passage (14).
Patent KR-900002997-B1 (KR)
Title: Optical information player
Inventor: TANAKA SINICHI
IPC: G11B7/09
Filed: 1986-03-11
Granted: 1990-05-04
Abstract: The optical information read apparatus includes an optical head for producing two detected signals whose phases vary accoriding to a tracking error of the head.  A tracking error detecting circuit produces an error signal corresponding to a phase difference between the two detected signals.  The optical head is controlled in response to the tracking error signal.  The tracking error detecting circuit has a test circuit for checking a correlation between the states of the two detected signals, and for making the tracking error signal invalid when there is no correlation between the states of the two detected signals.
Patent KR-860000624-B1 (KR)
Title: Process for preparing pirbuterol and analogs
Inventor: CUE JR BERKLEY WENDELL
IPC: C07D213/65
Filed: 1986-03-21
Granted: 1986-05-24
Abstract: Pirbuterol (I) or its acid-addn. salt was prepd. by (a) solvolysis or (b) when Y is benzyl, solvolysis and hydrogebolysis of a 2-aceto- kymethyl-3-substd.-6-(1-acetoxy-2-(n-acetyl-N-tbutylamino)ethyl pyridine of formula (II) [Y = benzyl or acethyl . Thus, II was prepd. by converting pyridine carbaldehyde to vinyl pyridine using guat. methyl phosphonium halide, which was then converted to epoxide-N- oxide by treatment with peracid. EkpoxideN-oxide was reacted with t- butylamine to form amine which was finally subjected to hydroge- nolysis to give II. Compd. I is a known bronchodilator and is useful for treating congestive heart failure.
Patent KR-900001231-B1 (KR)
Title: Rotating dry apparatus of wafer
Inventor: INUTA KAZUO
IPC: B08B7/00
Filed: 1986-04-23
Granted: 1990-03-05
Abstract: The device which is used for drying a wafer by rotating the wafer with high speed, comprises a housing forming a drying chamber (2), a discharge duct (5) connected to the lower part of the drying chamber, a rotary body (6) holding a plurality of wafers, a cover (8) extended to the rotary body, an inlet for intorducing clear air into the drying chamber, an auxiliary duct for discharging unneccessary material during drying, at least one cassette holder (11) holding a cassette loading a plurality of wafers, and a loading device for moving the cassette from a first position to a second position and loading the cassette into the holder.
Patent KR-910007276-B1 (KR)
Inventor: KURITA TOSHINORI
IPC: B23Q15/013
Filed: 1986-08-30
Granted: 1991-09-24
Abstract: 내용 없음.
Patent KR-920000400-B1 (KR)
Title: Image storage device
Inventor: AE KUG-HO
IPC: G11C7/00
Filed: 1986-10-30
Granted: 1992-01-13
Abstract: The device makes it possible to store and search picture data by outputting the  stored  data  immediately  after  the  storing. Further, synchronizing signals are separated  and  delayed  to  be used in forming regenerating picture, so that the regeneration  of picture data can be carried out by omitting a short pulse circuit. The device includes  a synchronizing signal separating section, an A/ D converting section, a latching section, a first delay section, a second delay section, a control  section,  a  counter,  a  clock generating section, a memory,  a  D/A  converting  section  and  a synchronizing signal synthesizing section.
Patent KR-940004834-B1 (KR)
Inventor: SCHUSTER WERNER
IPC: H01J9/395
Filed: 1986-12-19
Granted: 1994-06-01
Abstract: 내용 없음.
Patent KR-900003984-B1 (KR)
Inventor: GOBAYASI YOSIHIRO
IPC: H01M4/68
Filed: 1985-02-26
Granted: 1990-06-07
Abstract: 내용 없음.
Patent KR-960002563-B1 (KR)
Inventor: TOSHIYUKI FUKUDA
IPC: A47F3/04
Filed: 1987-03-14
Granted: 1996-02-22
Abstract: 내용 없음.
Patent KR-890000471-B1 (KR)
Title: Ignition timing control apparatus for internal combustion engine
Inventor: TAKAHASHI AKIRA
IPC: F02P5/152
Filed: 1987-11-21
Granted: 1989-03-18
Abstract: An ignition timing control appts. for an IC engine having a reference ignition timing comprises knock sensing means (1), signal deriving means for deriving knock signals from the output of the sensing means, correction magnitude determining means (50) for determining an ignition timing correction magnitude for suppressing the occurrence of knock, displacement magnitude determining means (52) for determining a displacement magnitude from one of an output of the knock signal deriving means and an output of the correction magnitude determining means, and ignition timing determining means for setting the reference ignition timing at an optimum ignition timing angle for the engine.
Patent KR-970002144-B1 (KR)
Inventor: SMITH TERRANCE
IPC: H04N9/44
Filed: 1988-04-09
Granted: 1997-02-24
Abstract: 내용없음.
Patent KR-960012557-B1 (KR)
Inventor: TREYBIG DUANE S
IPC: G01N21/77
Filed: 1988-08-13
Granted: 1996-09-23
Abstract: 없음.
Patent KR-0136609-B1 (KR)
Inventor: TERASHIMA YOSHIYUKI
IPC: G10H7/02
Filed: 1988-11-30
Granted: 1998-11-16
Abstract: 내용없음
Patent KR-960005271-B1 (KR)
Inventor: LECLERE KLEMENS
IPC: C03C17/00
Filed: 1988-12-01
Granted: 1996-04-23
Abstract: 내용 없음.
Patent KR-910007777-B1 (KR)
Inventor: TAMAI KIMINORI
IPC: G11B5/706
Filed: 1989-04-07
Granted: 1991-10-02
Abstract: 내용 없음.
Patent KR-970008377-B1 (KR)
Inventor: KOSLOV JOSHUA LAWRENCE
IPC: H04N5/44
Filed: 1989-06-08
Granted: 1997-05-23
Abstract: 요약없음
Patent KR-930002849-B1 (KR)
Inventor: MONTAGUE PETER G
IPC: C11D1/22
Filed: 1989-06-12
Granted: 1993-04-12
Abstract: 내용 없음.
Patent KR-940000117-B1 (KR)
Inventor: KENYON IAN R
IPC: C11D3/14
Filed: 1989-07-05
Granted: 1994-01-05
Abstract: 내용 없음.
Patent KR-930008603-B1 (KR)
Title: Method and compositions providing enhanced chemiluminescence from 1,2-dioxethanes
Inventor: SHARP ARTHUR P
IPC: G01N33/533
Filed: 1989-07-27
Granted: 1993-09-10
Abstract: A 1,2-dioxetane of the formulaand an alkene of the formulaare described. The 1,2-dioxetane is useful in immunoassays and in DNA probes used for various purposes.
Patent KR-920003841-B1 (KR)
Inventor: TANAKA MASATO
IPC: C08F4/622
Filed: 1989-07-29
Granted: 1992-05-15
Abstract: 내용 없음.
Patent KR-940004171-B1 (KR)
Title: Bypass mixing type hot water feeder
Inventor: ADACHI IKURO
IPC: F24H1/10
Filed: 1989-08-21
Granted: 1994-05-16
Abstract: When the temp. of hot water to be supplied is controlled by the amount of combustion while keeping the temp. of hot water which is passed through a heat exchanger at a higher level than a predetermined temp. of hot water, a computer fixes the opening of a throttle valve, and the temp. of hot water to be supplied is controlled only by the controlling of the combustion amount. On the other hand, when the temp. of hot water which is passed through the heat exchanger becomes lower than the predetermined temp. of hot water by the control of the combustion amount along, the temp. of hot water to be supplied is controlled by regulating the opening of the throttle valve. If the low temp. of hot water to be supplied is required, the temp. of hot water passing through the heat exchanger is maintained at a high level and the temp. of hot water to be supplied is kept lower by regulating the opening of the throttle valve.
Patent KR-950013084-B1 (KR)
Inventor: SUZUKI TAKASHI
IPC: C07C69/95
Filed: 1989-11-27
Granted: 1995-10-24
Abstract: 내용 없음.
Patent KR-930003971-B1 (KR)
Title: Process for the preparation of fluorescent with red luminescent
Inventor: YANG JUN-MO
IPC: C09K11/02
Filed: 1989-12-23
Granted: 1993-05-19
Abstract: The  europium-activated  yttrium  oxide  red  light  emitting fluorescent material of Y2O3:Eu  is  manufactured  by  (a)  mixing yttrium oxide (Y2O3) and europium  oxide  (Eu2O3)  with  2-6  wt.% sodium carbonate (Na2CO3), 2-6 wt.%  sodium  fluoride  (NaF2)  and 0.5-1.0 wt.% boron oxide (B2O3) w.r.t. 100 wt.% Eu2O3, (b)  firing the mixture at 1300-1400 deg.C for 2.5 hr,  and  (c)  washing  the obtd. fluorescent material and drying it. The fluorescent material has an improved luminance.
Patent KR-920007062-B1 (KR)
Inventor: HELMUT GERHARD
IPC: B60P7/06
Filed: 1988-06-06
Granted: 1992-08-24
Abstract: 내용 없음.
Patent KR-0163047-B1 (KR)
Inventor: FREITAG DIETER
IPC: C08L69/00
Filed: 1990-01-31
Granted: 1999-01-15
Abstract: 내용 없음.
Patent KR-940006984-B1 (KR)
Inventor: ONISHI HIROSHI
IPC: G02F1/1333
Filed: 1990-02-06
Granted: 1994-08-03
Abstract: 내용 없음.
Patent KR-930000718-B1 (KR)
Title: Method for fabricating semiconductor device
Inventor: KIM KYONG-HUN
IPC: H01L21/822
Filed: 1990-05-21
Granted: 1993-01-30
Abstract: The method includes forming a transistor on a substrate  (1), depositing an insulating layer (10), patterning a conductive layer (30) by vertically and horizon tally etching it using a  mask  and depositing an insulating film (32). A second conductive layer (33) deposited to protect the film (32) is vertically etched as well as the insulating film (32) and layer (10) using the mask. A  pattern of the  second  conductive  layer  is  formed  by  vertically  and horizontally etching it using a second mask  before  depositing  a second insulating film (36), and a third conductive layer (37)  to protect the film (36).  The  third  conductive  layer  and  second insulating film are vertically etched using the second  mask,  and the thickness of the third layer (37) is increased.
Patent KR-940007963-B1 (KR)
Inventor: ADACHI NOBUKAZU
IPC: G03G15/20
Filed: 1990-06-23
Granted: 1994-08-31
Abstract: 내용 없음.
Patent KR-940010196-B1 (KR)
Inventor: KIKAWA TAKESHI
IPC: H01J29/88
Filed: 1990-07-05
Granted: 1994-10-22
Abstract: 내용 없음.
Patent KR-920009468-B1 (KR)
Title: Making method of a broiled dish of sliced rice cake
Inventor: LEE JAE-SUN
IPC: A23L7/10
Filed: 1990-10-27
Granted: 1992-10-17
Abstract: A broiled sliced rice cake with acorn,  meat,  seasonings  is prepd. by (a) cutting acorn into 4-5 mm thickness and soaking  for 8-12 hr. in the 1-2 % NaCl-contg. water,  (b)  drying  the  soaked acorn and pulverizing, (c) mixing 50-70  wt.%  acorn  powder  with 30-50 wt.% corn starch, (d) kneading 60-80 wt.% mixt.  with  20-40 wt.% brown seaweed extract, (e) shaping it,  and  (f)  mixing  the shaped mixt. with meat, seasonings etc. and broiling to obtain the final product.
Patent KR-930000204-B1 (KR)
Inventor: KRUMWIEDE JOHN F
IPC: C03C3/078
Filed: 1990-11-02
Granted: 1993-01-14
Abstract: 내용 없음.
Patent KR-930011112-B1 (KR)
Title: Metal wiring method of semiconductor device
Inventor: CHOE DONG-KYU
IPC: H01L21/28
Filed: 1990-11-26
Granted: 1993-11-24
Abstract: forming  an insulating layer having a contact hole, forming  1st  metal  layer and 1st barrier metal layer each  of  a  predetermined  thickness; sufficiently coating and  reflowing  SOG  film;  etch-backing  SOG film, 1st metal layer and 1st barrier  metal  layer  at  the  same etching rate to a thickness;  and  depositing  2nd  barrier  metal layer and 2nd metal layer in order on the exposed SOG film and 1st barrier metal layer. The 1st, 2nd metal  layers  are  aluminum  or tungsten silicide and the 1st, 2nd barrier metal  layers  are  Ti, Ta, TiW or TiN.
Patent KR-930008134-B1 (KR)
Title: Composition for sensitizer
Inventor: LEE CHANG-HWANG
IPC: G03F7/033
Filed: 1990-11-27
Granted: 1993-08-26
Abstract: This new photosensitive resin composition  has  an  advantage that strength of photocuring layer is good;  developing  is  fast; and developing time and level is not so dependent on the  variable developing condition. The photosensitive composition  is  composed of 20-60 wt.% terminal  ethylene  unsaturated  compd;  30-70  wt.% polymer  binder  and  salted  polymer  binder;  and  0.1-10   wt.% photopolymerization initiator. The preparation  method  of  salted polymer binder comprises; (A) adding 100g styrene maleic anhydride in 500 ml H2O; (B) adding 239.2 ml of 3 wt/v%  NaOH  solution  and stirring at 40 deg.C for 3 hours; (C) drying in  vacuum  oven  and washing with ethanol; and (D) after drying, getting styrene maleic anhydride salted by sodium.
Patent KR-960002728-B1 (KR)
Title: Pll circuit for reinforcing frequency band width
Inventor: LEE BYUNG-WOOK
IPC: H03L7/00
Filed: 1990-11-30
Granted: 1996-02-26
Abstract: The band enhanced PLL circuit is for filtering audio carrier signal of satellite broadcasting system by adopting variable frequency oscillator having frequency band of 5.0MHz to 8.5MHz. The circuit includes a microprocessor(10) for generating data signal and control signal, a phase filter(20) for generating an error pulse by comparing selected values corresponding to a selected carrier signal and a former carrier signal, a lowpass filter(LPF) for converting output signal of the phase filter into a DC level, and an oscillator(30) for generating frequency signal having frequency varying according to output signal of the LPF.
Patent KR-940003371-B1 (KR)
Inventor: NIEDOSPIAL JOHN J
IPC: G03B17/30
Filed: 1990-12-19
Granted: 1994-04-21
Abstract: 내용 없음.
Patent KR-960014782-B1 (KR)
Title: Benzisothiazolinone 1-dioxide derivatives and elastase inhibitors composition comprising them
Inventor: LADISLAS ROBERT
IPC: A61Q3/02
Filed: 1991-03-08
Granted: 1996-10-19
Abstract: The invention relates to pharmaceutical and cosmetic compositions comprising at least one benzisothiazolinone-1-dioxide derivative with the formula: <CHEM> where R<1> can be hydrogen, and R<2> can be certain generally hydrophobic C8-C20 aliphatic groups or the group: <CHEM> where R<5> is aliphatic or else R<2> is a saturated or unsaturated C2-C6 group ending in an aromatic nucleus. These compositions can be used to inhibit elastases such as human leucocytic elastase. They may be applied topically as a cosmetic. Many of the benzisothiazolinone-1-dioxide derivative specified as active ingredient in such compositions are novel compounds.
Patent KR-100229301-B1 (KR)
Title: Latent catalysts, epoxy compositions containing the same and process for coating and impregnating articles using the compositions
Inventor: BERTRAM JAMES L
IPC: C08G59/50
Filed: 1991-05-20
Granted: 1999-11-01
Abstract: In summary, the invention is related to the discovery of a class of compounds which comprises boric acid or maleic acid or a mixture of boric acid with at least one acid having a weak nucleophilic anion, which inhibits the reaction of a polyepoxide with a curing agent at low temperatures. In another embodiment the invention is a latent catalyst system adapted for curing a polyepoxide resulting from contacting I) a catalyst for the cure of a polyepoxide compound comprising an amine, heterocyclic nitrogen phosphine, sulfide, phosphine, sulfide, ammonium, phosphonium, sulfonium, arsonium, containing compound or a mixture thereof; with II) boric acid, or a mixture of boric acid with at least an acid having a weak nucleophilic anion. Further the invention relates to epoxy resin compositions containing the inhibitor or latent catalytic composition. In still another embodiment the invention relates to a composition useful for curing a polyepoxide which contains: A) an inhibiting amount of boric acid or maleic acid or a mixture of boric acid with at least one acid having a weak nucleophilic anion; and optionally B) a catalytic amount of a catalyst useful for accelerating the reaction of a polyepoxide with the curing agent, wherein the inhibitor and catalyst may be present in complex form.