baber/WOPTO huggingface dataset:
Patent JO-2146-B1 (JO)
Title: The use of oils shell a ggregates as a pavement material
Inventor: MOHAMMAD M AWWAD
Filed: 1998-12-19
Granted: 2002-08-07
Abstract: Practically all of the earth crast can be utilized as pavement materials, if the material is structurally sound, and if the associated cost complies with the requirements, this material may compete with the traditional pavement materials. This is particularty true since the common pavement materials have been used up with no replacement. The accumulation of oilshale deposits at shallow depth in addition to its occurrence in large amounts in some arras made it a potential source of energy. Other uses of the oily rock are suggested. The use of oilshale in pavements is one of these uses examined by this research. The use of the materials is examined us structural elements in the surface and base layers. In addition, Oilshel ashes are examined as a filler matenal mixed with limestone aggregates in hot asphalt mixes. Experiments conducted by this study on oilshale from EL-Lajjun area in central Jordan , yield valuable information on the use of oilsale as a pavement material. It is worth mentioning that the natural resources Authority (NRA) in Jordan are using the crushed material as a cover on natural ground to provide passages for their expedition and drilling equipment. The research team greatly appreciates them for their cooperation abd support this study.
Patent KR-790001408-B1 (KR)
Title: Glove weaving method
Inventor: MASAHIRO Y
IPC: D04B7/34
Filed: 1974-01-01
Granted: 1979-10-02
Abstract: Glove was knitted without handwork to combine the thumb and palm part by continuous knitting through the core of the thumb and palm part.  The lower part of the glove was knitted by knitting the connecting several courses(7) through the back part of the thumb and corresponding palm part of the thumb with hook(1) followed by knitting with hook(1)-(3).
Patent KR-810001989-B1 (KR)
Title: A process for preparing improved wool textile material
Inventor: OKADA S
IPC: D06M10/00
Filed: 1974-01-01
Granted: 1981-12-08
Abstract: A fine and regular wool textile material was manufd. by improving a crimp which is having a short gelatious textile material in fiber length such as that of wool textile.  The gelatinous multi-filaments were arranged longitudinally to form sliver type, the fascicle was twisted temporally to prevent it from separating of inter-fibers which was owing to the after-elongation and the elongated fascicle was set and untwisted to manuf. improved wool textile material.
Patent KR-790000520-B1 (KR)
Title: Process for preparation of 6-demethyl-6-deoxy-6-methylene-tetracyclines
Inventor: COTTI G
Filed: 1974-10-11
Granted: 1979-05-31
Abstract: Title compds. [II; R = H, OH, -o-COR1 (R1 = C1-6 alkyl), Y = H or halogen , useful as antibiotics, were prepd. by dehydrohalogenation of lla-halo-6-demethyl-6-deoxy-6 -methylenetetracycline (I ; X = halogen) or its salts. Thus, I was dehydrohalogenated by PPh3, arsine or stibine in a solvent such as mono- or polyhydroxyalc., methoxyEtoH, ethoxyEtoH having 1-4 carbon atoms and dioxane, tetrahydrofuran, acetonitryl, DMF or acetone at 20-80≰C for 30-60 min to give I.
Patent KR-790001986-B1 (KR)
Title: Polymerizates of olefinic nitriles
Inventor: LI G S
IPC: C08F220/42
Filed: 1975-10-16
Granted: 1979-12-30
Abstract: Low creep. impact-resistant palymerizates of olefinic nitriles, useful as gas and vapor barriers, were prepd. by polymerizing an ester of an olefinically unsatd. acid (CH2 = CR1-COOR2; R1 = C1-4 alkyl group or halogen, R2 = C1-6 alkyl group) and indene in the presence of a rubber prepd. from a conjugated diene and an olefinically unsatd. nitrile (CH2 = CR-CN  ; R4 = C1-4 lower alkyl or halogen group).
Patent KR-810002031-B1 (KR)
Title: Method for forming counter-sunk hole in a base material
Inventor: NAKANISHI Y
IPC: B21D28/26
Filed: 1976-12-14
Granted: 1981-12-21
Abstract: A counter-sunk fole(16) is formed in a plate-like base material(1) by punching a preliminary hole(6) in the base material and forming a counter-sunk seat(10) around the preliminary hole. The preliminary hole is compressed to force out its edge portion(11) into the preliminary hole using a conical working surface(9). A finished hole is punched around the inner edge portion of the preliminary hole. This removes the material(12) forced into the preliminary hole during the compression.
Patent KR-810001538-B1 (KR)
Title: Poly olefin resin composition
Inventor: IKEYA NOBUSHIK
IPC: C08L23/00
Filed: 1978-06-29
Granted: 1981-10-27
Abstract: Polyolefin films with improved adhesion to substrates were prepd. by blending HDPE(I), polybutene(II) and an antifogging agent with a polyolefin and melt-extruding the blend.  Thus, a blend of I 94.6, LDPE 2, II3, and glycerol monooleate 0.4 part was melt extruded to give a film with good adhesion to substrates, whereas adhesion to substrates was poor for a film extruded from a similar compn. without. II.
Patent KR-830000485-B1 (KR)
Title: 가스 스프링
IPC: F16F9/06
Filed: 1978-10-20
Granted: 1983-03-10
Abstract: 내용 없음.
Patent KR-820000803-B1 (KR)
Title: Process for preparation of 2,2-dimethyl-ayclopropane carboxylic aster
Inventor: LONGONI A
IPC: C07C69/743
Filed: 1979-02-26
Granted: 1982-05-11
Abstract: Insecticidal compds. I≮A = CF3-C=C, CF3-CX-CH; X = H, F, Cl, Br; R = III or IV (R1 = H, CN; R2 = 3-phenoxy, 3-benzyl; R3 = H, alkyl; R4 = phenoxy, allyl; Y = O, S)≉were prepd. by the reaction of compd. II with a corresponding acyl halide followed by reaction with alcohol (R-OH) in an inactive solvent and halogen-hydrin acid-accepting base. Thus, ethyl ester intermediate of 3,3-dimethyl- 4, 6 -dibromo-6,7,7,7-tetra fluoro-heptanonic acid was used for prepg. 2,2-dimethyl-3-(β-fluoro-β-trifluoromethyl-vinyl)-cyclopropane carboxylic acid ethyl ester.
Patent KR-790002009-B1 (KR)
Title: Producing method of powder dye for water colour
Inventor: CHOI SANG BONG
IPC: C09B5/06
Filed: 1979-03-27
Granted: 1979-12-30
Abstract: The powder dye for water color was made from Arabian lubber and weat glutein with an weight ratio of 2 to 1.  The powder was mixed with generally used powder dye and dispersion economically used.  When stone powder and calcium carbonate are added to the above powder dye, they can be more economically used than any other type of water color
Patent KR-820001547-B1 (KR)
Title: Protecting feritic stainless steel from crevice and pitting corrosion
Inventor: HILL JAMES BYRON
IPC: C23F13/00
Filed: 1979-05-29
Granted: 1982-08-31
Abstract: A ferritic stainless steel substrate is protected against crevice and pitting corrosion by covering certain areas of the surface with a stainless steel of different composition, which is less noble in a corrosive medium than the ferritic stainless steel, and is in electrical contact with it.  Pref. the ferritic stainless steel to be protected is of AlSl type 439 and the other stainless steel AlSl type 409.  The use of another type of stainless steel instead of, e. g. Al, as a protection against crevice and pitting corrosion prolongs the life of the sacrificial metal and reduces the quantity of corrosion products.
Patent KR-840000498-B1 (KR)
Title: Process for preparation of heterocyclic spirolinked amidines
Inventor: FOERSCH MANFRED
IPC: C07D401/04
Filed: 1979-08-31
Granted: 1984-04-16
Abstract: Antidepressant amidines (I; n=1, 2; R1, R2=H, alkyl; R3=H, Me; R4=C1-4 alkyl, alkxy,methylenedioxy, hydroxy, halo, CN, NO2, MeF3, amino, C2-5 acylamino, C1-4 alkylamino, Ph, thiophene) and their 5,6,-dihydro derivs. were prepd. Thus, 3-(2-methoxyphenyl)-2-nitrobicyclo[2.2.1 hept-5-ene was treated with CH2:CHCO2Me and the resulting propionate reduced and cyclized to the ketone(III) which was thiolated, S-methylated, and aminated to give the 5,6-dihydro deriv. of I (R1R2=pyrrolidino; R3=H; R4=2-MeOC6H4).
Patent KR-860000340-B1 (KR)
Title: Process for the preparation of 1-(4-isopropylthiophenyl)-alpha-n octylaminopropanol
Inventor: LAMBELIN GEORGES L
IPC: C07C67/00
Filed: 1981-12-24
Granted: 1986-04-12
Abstract: The process comprises reacting 1-(4-isopropylthiophenyl)- 2aminopropanol with formaldehyde and heptanone-2 in an inert organic solvent at above ordinary temp., and reducing the reaction prod. (II) . (II) is reacted with an organic acid to yield a salt of 1-(4- isopropylthiophenyl)-2-n-octyl-aminopropanol (I). (II) may also be reacted with an active deriv. of an organic acid to give an ester of (I).
Patent KR-860000440-B1 (KR)
Title: Signal leve control circuit
Inventor: YOSIHASA KOJO
IPC: H03G1/04
Filed: 1982-01-28
Granted: 1986-04-19
Abstract: This circuit for audio equipment uses current mirror with Darlington pair to produce output current and avoid distortion from varing base- emitter voltage. A differential amplifier, coupled with two divider circuits converts an input signal to 1st and 2nd currents. A volume control signal is applied to the divider circuits. The divider circuits divide or attenuate the current according to the volume control signal, generating divided currents. The current division ratio of each divider is changed with the volume control signal and the current which passes through the devider is converted to an output current by a current mirror.
Patent KR-890001783-B1 (KR)
Title: Process for the preparation of water-solable monoazo compound
Inventor: MEININGER FRITZ
IPC: D06P3/66
Filed: 1982-08-09
Granted: 1989-05-22
Abstract: Water-soluble mono azo cpds. of formula  with at least two gps. imparting solubility in water are new.  In which, R1 is H, 1-4C alkyl, 1-4C alkoxy or Cl; R2 is H, 1-4C alkyl or 1-4C alkoxy; D is a group of formula (2a) or (2b), in which the gp. -SO3M is in each case in the ortho-position relative to the azo gp., and M is H, or an equivalent of a monovalent, divalent or trivalent metal; R is methyl, a carboxy gp. of formula -COOM with M of above mentioned meaning or a 1-4C carbalkoxy; K is phenyl radical which can be substd. by 1,2 or 3 substituents 8 rom sulfo, carboxy, sulfamoyl, carbamoyl, 1-4C alkyl, 1-4C alkoxy and Cl, and opt. substd. by a gp. of formula -SO2Y'.
Patent KR-860000209-B1 (KR)
Title: Injection stretch blow molding of two-layered bottle
Inventor: AOKI KATASHI
IPC: B29C45/16
Filed: 1983-03-30
Granted: 1986-03-15
Abstract: Two-ply moldings are produced from two different polymers using different molding temps. by injection and blow-molding. The inner parison(11) is injection-molded first from the lower temp. polymer; the outer parison(12), which uses higher temp. polymer, is injection molded around the first. At the same time, the outer surface of the inner parison is cooled to the lowest possible temp. The combined molding is passed immediately from the injection mold onto a blow mold. The temp. of the injection-molded combination parison does not require alteration for blow-molding.
Patent KR-890000209-B1 (KR)
Title: Process for preparing hydrothermally treated product of compound having hydrotalcite-like crystal structure
Inventor: MIADA SIKEO
IPC: C01G49/00
Filed: 1984-06-27
Granted: 1989-03-10
Abstract: A method comprises (i) reacting (a) iron (II) salt aq. soln. or aq. soln. of iron (II) salt and Mg (II) compd. with (b) Al (III) compd. aq. soln. or aq. soln. of Al (III) compd. and iron (III) salt at pH above 6 esp. 8-12 in the presence of compd. contg. anion An- or not under inert atm. to produce a compd. having hydrotalcite-like crystal structure [of formula (Fe2+, Mg2+)x (Al3+, Fe3+)2(OH)2x+6-nz(An-)z.mH2O, [An-=CO32-, SO42-, OH-, O<=Mg<X, O<=Fe3+<2, 1<=X<20, 0<Z<3, O<=m<20  and (ii) hydrothermally treating at 100-200 deg.C in an aq. media.  The prepd. compd. is useful for treating iron deficiency anemia.
Patent KR-920005201-B1 (KR)
Inventor: PRITCHARD DALTON H
IPC: H04N5/44
Filed: 1984-08-24
Granted: 1992-06-29
Abstract: 내용 없음.
Patent KR-890003606-B1 (KR)
Title: Optical conducter tube and connector
Inventor: MORI KEI
IPC: G02B6/02
Filed: 1984-11-10
Granted: 1989-09-27
Abstract: Sections of tube each comprise an optical conductor rod and a coaxial protection tube with spacers at predetermined intervals. At one end of a section the protection tube is enlarged with a threaded portion on its outer surface.  At the other end a thread is formed on the normal dia., and a circumferential stop is installed at a predetermined distance from the extremity.  Grooves are provided on the inner surface for the insertion of a sleeve around the inner rod, after a coupling ring has been fitted over the external thread and retained by a nut.  A threaded portion of the ring engages with the thread on the outside of the enlarged end  of another section of tube.
Patent KR-900001897-B1 (KR)
Title: Method of controlling refrigeration cycle
Inventor: TANAKA TATSUO
IPC: F25B41/06
Filed: 1984-12-28
Granted: 1990-03-26
Abstract: The opening rate of an expansion valve (4) is adjusted in accordance with the magnitude of a detected load of the cycle. The load is detected by sensing the temp. of a coolant injected from a compressor (1).  When the detected load exceeds a prescribed upper limit, the opening rate of the valve is stored. The opening rate of the valve is increased over that level previously stored in a memory, for reducing the load of the cycle of a lower level than a prescribed lower limit.  After the load of the refrigeration cycle decreases from the lower limit, the opening rate of the valve is adjusted to a larger level than that level previously stored in a memory by a prescribed extent.
Patent KR-910002963-B1 (KR)
Inventor: DAKASKI ASUSI
IPC: G11C11/41
Filed: 1985-03-02
Granted: 1991-05-11
Abstract: 내용 없음.
Patent KR-920003796-B1 (KR)
Inventor: HARRAH LARRY A
IPC: C08G77/48
Filed: 1985-04-04
Granted: 1992-05-14
Abstract: 내용 없음.
Patent KR-910003994-B1 (KR)
Inventor: SAKURA YASUHIRO
IPC: B41J2/355
Filed: 1986-02-06
Granted: 1991-06-20
Abstract: 내용 없음.
Patent KR-900002114-B1 (KR)
Title: Digital rotation detector
Inventor: KAWAI JOUJI
IPC: H03M1/22
Filed: 1986-02-25
Granted: 1990-04-02
Abstract: The digital rotation detecting appts. detects a phase angle of a resolver by using a multiple frequency clock of the excitation frequency for the resolver and a clock of a voltage control oscillator.  The two-phase resolver rotates in association with a rotary body, e.g. a motor.  A detector ascertains any phase difference between a two-phase output of a signal generator and the resolver.  A loop filter processes the phase difference for proportional-plus-integral-computation.
Patent KR-900008047-B1 (KR)
Title: Optical pulse receiving device
Inventor: YOKOYAMA MAKOTO
IPC: H04B10/00
Filed: 1986-05-17
Granted: 1990-10-31
Abstract: The electrical signal produced by a photodiode (PD) upon receipt of an optical pulse is amplified by an opertional amplifier (OP1) and applied directly to one input terminal (+) of a comparison circuit (COM), and also to a circuit which provides a continuing signal at the other comparison circuit input terminal (-) equal in amplitude to a derived ratio, sq. half, of the amplifier output signal. The comparison circuit provides a standard high output signal if the first input signal exceeds the second, and a standard low output signal if the second exceeds the first. In multi-step transmission of data, pulse distortion produced in receiving circuit is avoided in final output.
Patent KR-930011858-B1 (KR)
Inventor: WILLIAMS III A GREATES
IPC: B27G15/00
Filed: 1986-06-11
Granted: 1993-12-21
Abstract: 내용 없음.
Patent KR-900000733-B1 (KR)
Title: Air conditioning apparatus for automotive vehicles
Inventor: ITO TOSHIKAZU
IPC: B60H1/00
Filed: 1987-01-05
Granted: 1990-02-10
Abstract: The air conditioning unit includes a duct casing (1) having an upper air outlet (3) and a lower air outlet.  A defroster/vent change-over door (17) is mounted at the upper air outlet to switch it between a defroster outlet (16) and a vent outlet (15) so that when one is open the other is closed.  A communication passageway (19) is provided to connect the lower air outlet to the defroster outlet.  A defroster door (20) is mounted in the communication passageway to open and close it so that part of the conditioned air at the lower air outlet can be transferred to the defroster outlet to ensure below of conditioned air through both the defroster outlet and the vent outlet.
Patent KR-900006818-B1 (KR)
Inventor: BARNETT MALCOLM D
IPC: G02B6/44
Filed: 1987-02-28
Granted: 1990-09-21
Abstract: 내용 없음
Patent KR-920010041-B1 (KR)
Inventor: LEE JONG-SOK
IPC: H04N5/60
Filed: 1987-04-21
Granted: 1992-11-13
Abstract: 내용 없음.
Patent KR-950004199-B1 (KR)
Title: Computer interface device
Inventor: AUFR CARD W
IPC: G06F3/033
Filed: 1987-05-11
Granted: 1995-04-27
Abstract: A computer terminal device includes a flat screen display element (15) and a touch-sensitive element (16). Simulated keyboards can be displayed on the display element and, in response to the touching of the simulated keys, generate appropriate control signals. The same flat screen display can also be used to display computer output, either the result of calculations or the result of information retrieval requests. The slim silhouette of this terminal makes it ideal for hostile environments such as the factory floor or the hospital room.
Patent KR-920009043-B1 (KR)
Inventor: BREHM HELMUT
IPC: C11C3/00
Filed: 1987-05-26
Granted: 1992-10-13
Abstract: 내용 없음.
Patent KR-940003308-B1 (KR)
Inventor: TAKAHASHI YUKIO
IPC: F04B27/08
Filed: 1987-09-01
Granted: 1994-04-20
Abstract: 내용 없음.
Patent KR-890004363-B1 (KR)
Title: Process for making seasoned egg products
Inventor: LEE SONG-KI
IPC: A23L15/00
Filed: 1987-09-25
Granted: 1989-10-31
Abstract: (a) washing eggs and making the seasoning containing 30g salts, 20g soy, 1g pepper and 5g sugar in 1000 ml water; (b) putting washed eggs in the seasoning solution and heating a pressure coker containing the eggs and seasoning solution up to 100≰C; (c) heating the above pressure cooker up to 120≰C for 20 mins under the pressure of 2.0kg/cm2  and letting stand at room temperature for 24hrs; (d) drying the above eggs at 30≰C for 20 mins and at 55≰C for 2 hrs.
Patent KR-950009547-B1 (KR)
Inventor: KUWAJIMA TERUAKI
IPC: B05D5/06
Filed: 1987-10-26
Granted: 1995-08-24
Abstract: 내용 없음.
Patent KR-950014178-B1 (KR)
Inventor: FISCHER MICHAEL A
IPC: H04J3/24
Filed: 1987-12-12
Granted: 1995-11-22
Abstract: 내용 없음.
Patent KR-910001345-B1 (KR)
Inventor: YAMAJAKI SUNPEY
IPC: H01L39/12
Filed: 1987-12-21
Granted: 1991-03-04
Abstract: 내용 없음.
Patent KR-900007445-B1 (KR)
Title: Method for producing a high tensile steel
Inventor: CHANG WOONG-SUNG
IPC: C21D8/00
Filed: 1987-12-28
Granted: 1990-10-10
Abstract: The high tensile steel is manufacted by finish rolling the steel slab consisting of (in wt.) 0.06-0.09% C, 0.1-0.3% Si, 0.81.6% Mn, 0.02- 0.06% Al, 0.0005-0.0025% B, 0.002-0.005% Ca, 0.030.007% N, at least two elements selected from groups consisting of up to 0.5% Cu, up to 1.0% Ni, up to 0.6% Mo, up to 0.8% Cr, up to 0.06% V and up to 0.06% Nb, and the balance Fe, and quenching the hot-rolled steel with tempering.
Patent KR-910006188-B1 (KR)
Title: Transport tank including slosh guard elements
Inventor: GERHARD HELMUT
IPC: B61D5/00
Filed: 1986-08-25
Granted: 1991-08-16
Abstract: PCT No. PCT/DE86/00341 Sec. 371 Date Jun. 23, 1987 Sec. 102(e) Date Jun. 23, 1987 PCT Filed Aug. 25, 1986 PCT Pub. No. WO87/01101 PCT Pub. Date Feb. 26, 1987.When a transport tank for transporting liquids is to be transported with only a partial load, the slosh forces occurring in this case may be reduced by means of slosh guard elements adapted to be built into the already existing tank. The slosh guard elements comprise strips of material bent generally to OMEGA -shape, which are fixed in the region of the opening of the OMEGA -shape to rails having cross profile. The rails and the slosh guard elements are dimensioned such that they can be introduced through the manhole provided in the tank outer wall.
Patent KR-930010583-B1 (KR)
Inventor: YAMAGUCHI ISAO
IPC: A61K31/55
Filed: 1988-02-09
Granted: 1993-10-30
Abstract: 내용 없음.
Patent KR-960008450-B1 (KR)
Inventor: MIYAOKA SHUICHI
IPC: G11B5/03
Filed: 1988-03-09
Granted: 1996-06-26
Abstract: 내용 없음.
Patent KR-900009085-B1 (KR)
Inventor: KO JA-HAI
IPC: H02M1/00
Filed: 1988-04-04
Granted: 1990-12-20
Abstract: 내용 없음.
Patent KR-900004926-B1 (KR)
Title: Method for preparing epichlorohydrins
Inventor: NAKANISHI DAKEHISA
IPC: C07D303/08
Filed: 1988-04-11
Granted: 1990-07-12
Abstract: A epichlorohydrin prepn. comprises reacting 2-alkyl allyl chloride contg. C1-3 alkyl, with an alkyl hydroperoxide in the presence of a catalyst having Ti atoms bound to a SiO2 carrier via O atoms and having 3-6 silanol gps per 2nm2 of the carrier. The catalyst is heat teated at 100-250 deg.C. The alkyl hydroperoxide is pref. e.g. cumene hydroperoxide. The 2-alkylallyl chloride is (meth) allyl chloride. The heat treatment is effected in a non reducing gas atmos. The epichlorohydrin is prepd at low temp. in high yield and selectively.
Patent KR-920007167-B1 (KR)
Inventor: KANEKO YOSHIUKI
IPC: G09G3/36
Filed: 1988-04-18
Granted: 1992-08-27
Abstract: 내용 없음.
Patent KR-910003935-B1 (KR)
Inventor: ISHII OSAMU
IPC: G11B11/105
Filed: 1988-05-06
Granted: 1991-06-17
Abstract: 내용 없음.
Patent KR-960003173-B1 (KR)
Inventor: MITSUMASA KUROSAWA
IPC: C21D9/52
Filed: 1988-05-11
Granted: 1996-03-06
Abstract: 내용 없음.
Patent KR-920000886-B1 (KR)
Title: Channel selecting circuit
Inventor: PARK CHANG-SUH
IPC: H04N5/50
Filed: 1988-10-31
Granted: 1992-01-30
Abstract: The pulse  signal  is  generated  by  one  channel  selection switch, counted by a ring counter and then decoded by a decoder to control a tuning voltage selector so that the channel is  switched by one channel switch.  The  channel  switch  includes  a  channel switch (SW1) having one tact switch to charge a capacitor (C1),  a pulse generator (3) for generating rectangular pulse by transistor (Q1) drived by chrge voltage of the capacitor (C1), a ring counter (1) for counting the output pulses of the pulse generator  (3),  a decoder (2) for decoding the output signal of the counter  (1),  a tuning voltgae selector (6) for  selecting  and  providing  tuning voltgae by thyristors (SCR1-SCR12) controlled by the output signal of the decoder, and reset unit (5) for resetting the counter (1).
Patent KR-910008147-B1 (KR)
Inventor: MATSUMOTO TSUYOSHI
IPC: C22C21/12
Filed: 1988-11-09
Granted: 1991-10-10
Abstract: 내용 없음.
Patent KR-0143091-B1 (KR)
Inventor: CARR ALBERT A
IPC: C07D211/22
Filed: 1988-11-23
Granted: 1998-07-15
Abstract: 내용없음
Patent KR-940000121-B1 (KR)
Title: Polishing compositions based on cerium and process for the preparation thereof
Inventor: LOARER JEAN-LUC LE
IPC: C09K3/14
Filed: 1988-12-09
Granted: 1994-01-07
Abstract: In its preferred embodiment, the composition of the invention comprises a polishing agent based on ceric oxide, a boron compound and aluminium silicate. 
<??>The polishing composition of the invention has improved properties of behaviour in suspension and a better redispersibility after settling.
Patent KR-930002017-B1 (KR)
Inventor: TANAKA HISAMI
IPC: G03G15/02
Filed: 1989-02-20
Granted: 1993-03-20
Abstract: 내용 없음.
Patent KR-920007922-B1 (KR)
Title: Automatic color kill method and circuit of tv
Inventor: SHIM DAE-YUN
IPC: H04N9/70
Filed: 1989-08-11
Granted: 1992-09-19
Abstract: The circuit decides the range of the top/bottom  kill  values by using the gain factor to execute the  automatic  color  control and produces only the  luminance  signal  of  the  original  video signal if the gain factor is outside of  the  range.  The  circuit comprises an A/D converter (200) for converting the  analog  video signal to the digital data, a Y/C separator (210)  for  separating the digital video signal into the Y and C signals, a  burst  level detecting gain producer (230) for producing the gain  factor  from the burst level value, a kill producer  (280)  for  producing  the kill control signal by comparing  the  reference  signals  (KT,KB) with the output of the burst  level  detecting  gain  producer,  a digital multiplier (220), and a decoder for  producing  the  color output according to the kill control signal.
Patent KR-0139803-B1 (KR)
Title: 병렬/직렬 데이타 변환회로
Filed: 1989-08-31
Granted: 1998-07-01
Abstract: 내용 없음.
Patent KR-910009517-B1 (KR)
Inventor: FARMER PETER H
IPC: C03C27/12
Filed: 1989-11-30
Granted: 1991-11-21
Abstract: 내용 없음.