baber/WOPTO huggingface dataset:
Patent ES-2488868-B1 (ES)
Title: Procedimiento para la obtención de nanoestructuras de plata y nanoestructuras obtenidas mediante dicho procedimiento
Inventor: MENENDEZ SUAREZ MARIA FE
IPC: C01G5/00
Filed: 2013-01-28
Granted: 2015-05-08
Abstract: Procedimiento para obtener nanoestructuras de plata, en particular nanohilos y nanoestructuras cerradas, principalmente nanoanillos y otras estructuras de forma poligonal o de forma combinada poligonal y de anillo, en el que se emplea una disolución de cloruro de cobre (II) en etilenglicol, PVP en etilenglicol y AgNO{sub,3}, opcionalmente junto con KBr, dando como resultado un alto rendimiento en cuanto a la obtención de tales nanoestructuras de plata y en tiempos muy cortos.
Patent ES-2604304-B1 (ES)
Title: Dispositivo de iluminación a base de LEDs con control de dosis automatizado para fotodiagnóstico de enfermedades cutáneas relacionadas con la exposición lumínica, aplicaciones y métodos relacionados
Inventor: AGUILERA ARJONA JOSE
IPC: A61B6/00
Filed: 2015-09-03
Granted: 2018-02-22
Abstract: Dispositivo de iluminación a base de LEDs con control de dosis automatizado para fotodiagnóstico de enfermedades cutáneas relacionadas con la exposición lumínica, aplicaciones y métodos relacionados. La invención se refiere a un dispositivo de iluminación a base de LEDs con control de dosis automatizado para fotodiagnóstico de enfermedades cutáneas relacionadas con la exposición lumínica caracterizado porque comprende una serie de LEDs para iluminar la piel del sujeto sobre la que se desea realizar el estudio fotobiológico, una serie de aberturas en la cara frontal del dispositivo, una para cada LED, y una serie de controladores de dichos LEDs (un controlador por cada LED) para regular de forma automatizada e individualizada la dosis de emisión de los LEDs controlando el tiempo de emisión y/o la potencia de emisión. La invención también refiere el uso de dicho dispositivo para la obtención de datos útiles para el diagnóstico de patologías cutáneas (fotodermatosis).
Patent ES-2586949-B1 (ES)
Title: Mejora del método de control de artrópodos perjudiciales, composición y dispositivo de pulverización electrostática
Inventor: HIRAYAMA TAKAHISA
IPC: B05B5/025
Filed: 2015-04-16
Granted: 2017-07-04
Abstract: Certificado de adición de la patente P201230024: Método de control de artrópodos perjudiciales, composición y dispositivo de pulverización electrostática. El presente certificado de adición describe un método para controlar un artrópodo perjudicial que emplea un compuesto de éster que tiene una estructura específica, según formula (1). Con el método del presente certificado de adición es posible controlar una amplia variedad de artrópodos perjudiciales eficazmente, sin llevar a cabo ningún proceso de calentamiento (por ejemplo, un proceso de ahumado) para pulverizar la composición o ningún proceso de presión (por ejemplo, un proceso de presión de gas o un proceso de presión mecánica) para pulverizar las composiciones.
Patent ES-2642671-B1 (ES)
Title: Composición biocida con actividad dual inmediata y remanente
Inventor: MARTORELL LOUBIÈRE GÉRARD
IPC: A01P1/00
Filed: 2015-12-04
Granted: 2018-11-13
Abstract: Composición antiséptico y desinfectante con actividad inmediata y remanente.#La presente invención se refiere a una emulsión doble de agua-en aceite-en agua (W1/O/W2) que comprende: (a) una fase acuosa interna (W1) que comprende: (a1) uno o más principios activos biocidas no volátiles; (a2) uno o más tensioactivos lipófilos; y (a3) agua; (b) una fase oleosa intermedia (O) entre la fase acuosa interna y la fase acuosa externa que comprende uno o más compuestos oleosos; y (c) una fase acuosa externa (W2) que comprende: (c1) uno o más principios activos biocidas volátiles; (c2) uno o más tensioactivos hidrófilos; y (c3) agua.
Patent JO-2112-B1 (JO)
Title: Amobile device to eradicate red palm weevils and trees stem borers
Inventor: YOSRI MOH D TAHER YOUSEF
IPC: A01M1/22
Filed: 1999-07-11
Granted: 2000-05-21
Abstract: All 50 million of Arabia’s treasured date palms are under threat of extinction from a virulent pest known as Red Palm Weevil, Researches and Projects have been launched around the world to confront this winged plague. Despite all the efforts used, Pest control using traditional methods like chemical or biological control proved to be not effective to eradicate the pests or prevent them from spreading. The need for more effective method of control is demanding. Trough my researches and experiments I came up with this device which kills all pests bore deep inside the trunks of trees, the principal of the device based on directing high frequency electromagnetic wave to the infected area of the trunk, As I found that insects have higher energy absorption at specific frequencies than trunks, Which result in destruction of insects dues to there internal overheat, without affecting the trees.
Patent JO-2512-B1 (JO)
Title: Improved Velocity Profile Impeller Vane
Inventor: CRAIG I WALKER
IPC: F04D29/24
Filed: 2005-03-06
Granted: 2009-10-05
Abstract: In accordance with the present invention, an impeller for use in a centrifugal pump has at least one vane the radially outer terminal end of which is configured to produce a flow velocity profile that controls and reduces the wear caused by slurry fluid being expelled from the impeller on the inner surface of the pump casing. The impeller vanes of the present invention are generally configured with a radially outwardly extending portion, as compared with the conventional straight or concave edge of an impeller vane. The outwardly extending portion may vary in shape, but is selected to produce a flow velocity profile that reduces wear in the pump casing.
Patent JO-3173-B1 (JO)
Title: Hookah tobacco substitute
Inventor: ANDRÉ JÄNTSCH
Filed: 2012-07-10
Granted: 2018-03-08
Abstract: The invention relates to a water pipe tobacco substitute. A water pipe allows the user to consume the aerosols and flavor additives contained in a fluid. It is problematic with known water pipes that the fluid due to great heat decomposes or burns, respectively. In addition, insufficient amounts of aerosols and flavor additives are released. Objective of the invention is, thus, to allow for an even and complete release of the aerosols and flavor additives. This is solved by a water pipe tobacco substitute, which comprises a closed-pored carrier for the fluid.
Patent JO-P20180050-B1 (JO)
Title: Tactical Dental Syringe
Inventor: MUSTAFA ABDELFATTAH MUSTAFA ABDEL MUTI
Filed: 2018-05-10
Granted: 2023-09-17
Abstract: This injection is designed to reduce or eliminate fear in patients, especially children and patients who suffer from phobia of conventional dental syringe, where fear of the metal form of conventional dental syringe and from the top of the needle exposed to the patient, as this injection has a convenient shape in front of the patient.
Patent KR-790001160-B1 (KR)
Title: Process for preparation of instant soy bean curd
Inventor: MOON OK HI
Filed: 1976-12-13
Granted: 1979-09-10
Abstract: Instant soy bean curd without preseratives was prepd. by direct freezing to -34≰˜-40≰C with harmless liquid nitrogen for 40min. Afterwards, aging was performed for 10-15 days at 0≰-5≰C. Products have long shelflife, portability and nutritional stability.
Patent KR-810001540-B1 (KR)
Title: Block copolymer composition
Inventor: HIMES G
IPC: C08L53/02
Filed: 1978-01-12
Granted: 1981-10-27
Abstract: Mixts. of a butadiene-styrene block copolymer(I), anionic polystyrene, and an extender oil were extruded to prep. molded shoe soles which resisted wrinkling during flexing.  Thus, a mixt. of I(contg. polystyrene blocks with mol. wt. 30.000) 100, anionic polystyrene 55, and paraffin oil (shell flex 311) 100 parts was molded to prep. shoe soles with shore A hardness 76, high stiffness, and good resistance to abrasion.
Patent KR-790000658-B1 (KR)
Title: Refining process of lactic acid
Inventor: LEE KEUN JI
Filed: 1978-06-26
Granted: 1979-06-20
Abstract: Lactic acid was refined by using a gas-liquid flow catalyst reaction esterification method. Thus, lactic acid, which was preliminary mixed with catalyst and lower alkyl having equiv. weight ratio 1:1 compared to lactic acid, was introduced to the upper part of a packing tower and disperse-dropped reducing the size of the packing tower, reaction time, and saving MeOH, which was introduced in the lower part of the tower. By using strong acidic ionexchange resin as hydrolysis catalyst, the catalyst can be reused without chemical treatment.
Patent KR-830000162-B1 (KR)
Title: 분무기의 덮개
IPC: B05B11/00
Filed: 1979-03-20
Granted: 1983-02-17
Abstract: 내용 없음.
Patent KR-800000436-B1 (KR)
Title: Apparatus to decrease emitting nox hc and co for exhaust gas of internal combustion engine
Inventor: TATE TASUKU
IPC: F02B19/10
Filed: 1979-06-26
Granted: 1980-05-26
Abstract: This engine comprises an auxiliary combustion chamber whose volume is 5-12 % of the total combined chamber volumes for a rich mixture through a valve from a first carburetor throat, the main combustion chamber for a lean mixture through a valve from a second carburetor throat, a torch nozzle restriction whose cross sectional area is 0.04-0.16cm2 eachcm3 of volume of the auxiliary chamber and metal cup with two holes.
Patent KR-830001103-B1 (KR)
Title: 항생물질 sb-72310의 제조방법
IPC: C12P17/10
Filed: 1979-09-12
Granted: 1983-06-11
Abstract: 내용 없음.
Patent KR-840000115-B1 (KR)
Title: Process for the preparation of a carbazole derivative
Inventor: ZWAHLEN WILLY
IPC: C07D209/86
Filed: 1980-02-29
Granted: 1984-02-16
Abstract: 6-Chloro-α-methyl-carbazol-2-acetic acid was prepd. by treating I (R=lower alkyl) with Cl and by hydrolysis of II.  Thus, 2.5kg (6-chloro-1,2,3,4-tetrahydro-2-carbazolyl)-methyl malonate diethyl ester was treated with 75L toluene at 75≰Cwith stirring.  Then, 940g Cl-gas was added to the mixt. to give 2.1kg (6-chloro-2-carbazolyl)-methyl malonate diethyl ester.  247g (6-chloro-2-carbazolyl)-methylmalonate diethyl ester was refluxed in a mixt. contg. 1.9L glacial acetic acid and 1.9L 6N-HCl to give 103.8g 6-chloro--methyl-carbazol-2-acetic acid.
Patent KR-830001165-B1 (KR)
Title: 규산소오다의 제조방법
IPC: C01B33/32
Filed: 1980-06-27
Granted: 1983-06-20
Abstract: 내용없음.
Patent KR-880000831-B1 (KR)
Title: Process for producing an underground storage meane
Inventor: BOVE MICHEL
IPC: E02D29/045
Filed: 1980-07-28
Granted: 1988-05-14
Abstract: A vertical pit having a sufficient radius to carry the necessary equipments for forming the cavity is dug upto the common bottom level of the cavities.  Then the horizontal tunnels are dug upto the desired positions for the cavities.  From those positions, the cavities are formed by digging the subterranean upwardly.  The first vertical pit is used as a water feeding pit for balancing the liquified gas level by compensating water pressure after the cavities are completed to form.
Patent KR-840001006-B1 (KR)
Title: Partially devctrified porcelain composition and articles prepared with same
Inventor: HANG KENNETH WARREN
IPC: C03C10/04
Filed: 1980-10-29
Granted: 1984-07-19
Abstract: A metal core is coated with a devitrified porcelain coating free of alkali metal oxide and contg. in mole % 6-25 BaO, 3-60 MO (at least 50 of MgO and the rest of ZnO of CaO) 13-35 B2O3, 10-25 SiO. The porcelain pref. has a deformation temp. of at least 700≰C and a thermal expansion from 0-700≰C greater than 110x10-7/≰C whhich approximates to that of the metaal core. Porcelain-coated metal circuit boards are used for printed circuits and hybrid circuits having process-induced components. The porcelain-coated boards have flat surfaces which are easily and accurately printed, the adhesion after firing is excellent and the porcelain is not affected by firing is excellent and the porcelain is not affected by brown plaque. The porcelain is stable and has a higher breakdown voltage.
Patent KR-890002166-B1 (KR)
Title: Process for the making alcohol-free drinks with a yeast aroma
Inventor: SCHUR FRITZ
IPC: A23L2/84
Filed: 1982-04-17
Granted: 1989-06-22
Abstract: The preparation of yeast-smelling beverage without alcohol comprises; (a) seperating malt juice from precipitate and cooling at 0≰C; (b) separating the fresh yeasts from a beer barrel; (c) adjusting pH of malt juice into 4 with diluted sulphuric acid or lactic acid; (d) cooling yeasts and malt juice at -0.4--0.5≰C and adding 0.5 liter of concentrated yeast solution to 1 hectoliter of malt juice.
Patent KR-860001452-B1 (KR)
Title: Air-breaker
Inventor: SANO DAKAMISSU
IPC: H01H1/02
Filed: 1982-09-29
Granted: 1986-09-25
Abstract: The interrupter has a pair of electrodes which can close or open against each other within a hermetic electric insulating vacuum vessel. At least one electrode is made of chromium and or chromium alloy that has  more than 90% chromium. This prevents generating of surges by multi-reignition and three phase simultaneous breaking. The switchgear comprising a vacuum interrupter requires no surge absorber or similar apparatus. Hence it is possible to reduce the whole size of the switchgear and improve reliability for protecting an electric circuit.
Patent KR-910006492-B1 (KR)
Title: Generating apparatus of picture image signal and sound signal
Inventor: KAMAI DOSHIMITS
IPC: H04N9/82
Filed: 1983-02-16
Granted: 1991-08-26
Abstract: A video and audio signal reproducing apparatus comprises an audio signal processing circuit (20) which reproduces at least one audio signal recorded in at least one longitudinally disposed track (T<sub>L</sub>, T<sub>R</sub>) on a magnetic recording medium (1 F), a mixed signal processing circuit (50) which reproduces the audio signal from first and second mixed audio and video signals recorded in first and second adjacent oblique tracks (T<sub>A</sub>, T<sub>B</sub>),respectively, on the magnetic recording medium (1F);and a detecting circuit (20) which detects when the audio signal is included in the signals recorded in the oblique tracks (T<sub>A</sub>, T<sub>B</sub>) on the magnetic recording medium (1F) and which selects the audio signal from the mixed signal processing circuit (50) when the audio signal is reproduced thereby and which selects the audio signal from audio signal processing circuit (20) at all other times.
Patent KR-860001598-B1 (KR)
Title: Automatic operating method for a pneumatic unloader
Inventor: KITA TAKEYOSHI
IPC: B65G67/60
Filed: 1983-04-13
Granted: 1986-10-13
Abstract: Upper and lower level switches(20,21) are attached on an inhale nozzle(3). These switches and a vertical pipe driving device(18) control the pipe(7) for the nozzle to be at an adjusted height always between the level switches. A safety switch drives the pipe driving device when the nozzle contacts with the lower portion of a container and this prevents the nozzle from descending. A nozzle clearance adjusting device(31) is established on the supporter(30), which is fixed on the upper portion of the inside nozzle case. One end of the piston rod of the device(32) is attached on the outside nozzle case and controls the clearance of the nozzle(E).
Patent KR-850001356-B1 (KR)
Title: Apparatus for generating ozone with forced ventilating type internal combustion engine
Inventor: OOSS KAZUO
IPC: F02M25/10
Filed: 1983-04-26
Granted: 1985-09-21
Abstract: This ozone-generating device consists of a high-pressuregenerating transformation circuit and a steady voltage supplying circuit. A high-pressure-generating transformation circuit produces the ozone using a discharging action. An electrode and an air cleaner are connected to a conduit. A fan and a fan-driving motor, which supply the ozone under forced ventilating, installed approximately at the electrode part.
Patent KR-860001340-B1 (KR)
Title: Adhesive tape having excellent heat conductivity
Inventor: IWAMOTO SHIYOUSHU
IPC: H05K3/38
Filed: 1983-09-28
Granted: 1986-09-15
Abstract: The adhesive tape comprises a metal foil coated with an adhesive composed of (i) 100 pts. wt. pressure sensitive adhesive and (ii) 0.1-5.0 pts. wt. dyestuff or pigment having metal atoms. The dyestuff or pigment is pref. complex metal salt. The metal foil is Al, Cu or Fe foil. The adhesive is poly(acrylate), natural or synthetic rubber. The produced tape has improved thermal conductivity.
Patent KR-860001729-B1 (KR)
Title: Transducer for determining if steam generator tubes are locked in at support tube
Inventor: HEIGHS JAMES K
IPC: G21C17/003
Filed: 1983-10-20
Granted: 1986-10-18
Abstract: A generator(10) has an array of U-tubes in a shell(20). Tube vibration is prevented by a support(30) which surrounds and is closely spaced from each tube. A device for testing whether a tube is locked in to the support, includes a rod with a first end inside the tube being tested and a second end outside. The first end is fixed to the tube, and equal lengths of the rod and tube are heated. Movement of the second end of the rod indicates that the tube is locked in.
Patent KR-890001384-B1 (KR)
Title: Distance measuring method and the system using electronic wave
Inventor: GAWADA YOUDAGA
IPC: G01S13/34
Filed: 1984-04-20
Granted: 1989-05-02
Abstract: This method comprises the steps of transmitting an FM wave to the target and receiving its reflected wave.  A beat wave is obtained using the received wave and the FM wave.  A sine wave is mixed with the beat wave and a sideband wave of several sideband waves of the resultant mixed wave is obtained.  Phase modulation is applied directly to the beat wave.  Information pertaining to distance can then be obtained from the number of peaks of the modulated beat wave.
Patent KR-890004041-B1 (KR)
Title: Hinge fittings for adjustable seats
Inventor: SCHOTTKER WILLI
IPC: B60N2/90
Filed: 1984-05-28
Granted: 1989-10-18
Abstract: The hinge fitting is for an adjustable seat and has a single rotatable handle by means of which the back rest can be tilted and the height of the seat adjusted.  The handle is connected to a shaft which can be selectively coupled to one of two eccentrics mounted on an axle which passes through the two hinges and one end of a pivotable seat support.  One eccentric is coupled to one hinge which has spur gear areas engaging inner toothings on the other hinge. Rotation of this eccentric causes the inclination of the back rest to be adjusted.  The other eccentric is coupled to the end of the support which is constructed as a three-stage hollow piston.
Patent KR-920005901-B1 (KR)
Inventor: GIORGIO TARGA
IPC: D07B3/04
Filed: 1984-07-26
Granted: 1992-07-24
Abstract: 내용 없음.
Patent KR-890004405-B1 (KR)
Title: Method for representing three dimensional structures
Inventor: ANDERNACH DIETRICH
IPC: G06F19/00
Filed: 1984-07-26
Granted: 1989-11-03
Abstract: A method for representing the 3-D structures of the works whose surfaces to be machined are varying on the screen of the control unit of a machine tool into 2-D, comprises arranging the group of the image patterns in such a stepped manner that the lowest pattern is indicated as the highest one of the steps, establishing a plurality of observation planes to the indicatable works, allowing the image pattern to each plane by ones, representing the works on each plane by the tool of which position is variable in the corresponding pattern to the plane in such a manner that the indication of the higher plane is represented on the upper portion without affectation to the other ones.
Patent KR-920005474-B1 (KR)
Inventor: GREATHEAD THOMAS W
IPC: E06B5/10
Filed: 1984-08-10
Granted: 1992-07-04
Abstract: 내용 없음.
Patent KR-890002403-B1 (KR)
Title: Method for preparing fuel
Inventor: RYU JAE-MAN
IPC: C10L5/00
Filed: 1985-05-14
Granted: 1989-07-03
Abstract: A method comprises (i) mixing fuel materials 95-98% (obtd. by mixing chaff, straw, crops stem, saw dust, wood pieces, tree leaves, grass leaves, waste fabric and waste paper, crushing, compressively drawing and cutting), alk. co-material 3-15% (i.e. KOH, NaOH, Ca(OH)2) and water plants 2-5%, (ii) heat-extruding the mixt. into a molded fuel, and (iii) coating waste fat-oil 10-20% (obtd. from adding alk. 3-10% to vegetable/animal/mineral fat-oil, mixing at 1000-2000 rpm and 20- 100 deg.C for 10-30 min) onto fuel surface or part of cut-face.
Patent KR-900008971-B1 (KR)
Inventor: TAKEMURA MOMOKO
IPC: B23K35/00
Filed: 1985-12-18
Granted: 1990-12-15
Abstract: 내용 없음.
Patent KR-930007045-B1 (KR)
Inventor: VISSER ARIE
IPC: H04B14/06
Filed: 1985-12-19
Granted: 1993-07-26
Abstract: 내용 없음.
Patent KR-900009060-B1 (KR)
Inventor: GOTOU MAKOTO
IPC: H04N5/232
Filed: 1986-04-18
Granted: 1990-12-17
Abstract: 내용 없음.
Patent KR-890000372-B1 (KR)
Title: Preparation for poly aluminium chloride
Inventor: LEE CHUL-SU
IPC: C01F7/56
Filed: 1986-05-10
Granted: 1989-03-15
Abstract: A method for prepg. poly Aluminium chloride (PAC) comprises (i) reacting mixt. of HCl and Al(OH)3 with H2SO4 and water at 100-130 deg.C, (ii) re-reacting with CaCO3 at 70-150 deg.C to prepare PAC aq. soln., (iii) heating at 100-150 deg.C (near of limiting temp.) in vacuum to obtain concd. PAC aq. soln. and (iv) drying at 70-300 deg.C with maintaining 50-60 % of basicity by use of 0.5 N HCL.  Prepd. PAC is useful as coagulating agent for water treatment.
Patent KR-890000308-B1 (KR)
Title: X-ray imaging device
Inventor: KIRI MONOSADA
IPC: H05G1/00
Filed: 1986-07-16
Granted: 1989-03-13
Abstract: The apparatus for detecting image taken by x-ray comprises a collimator (C) having a number of 2 dimensionally arrayed holes, a driver (Dr) for driving the collimator, an image detecting device (K) including image amplifying tube (II), a lens (L) and a camera tube (VD), a CPU for sweeping the horizontal scanning X-ray on the camera tube to pick up the maximum value as an image data of the corresponding pixel, and a memory (M) for storing pickup data value in the corresponding address.
Patent KR-940004327-B1 (KR)
Inventor: KELAITA NERGAL R DE
IPC: G06F11/36
Filed: 1986-04-15
Granted: 1994-05-19
Abstract: 내용 없음.
Patent KR-900005108-B1 (KR)
Title: Method for making body cleaning parts
Inventor: BYUN JAE-SU
IPC: A47K7/00
Filed: 1987-07-24
Granted: 1990-07-19
Abstract: Process for preparig a wet-towel contg. herb medicine (I) comprises (a) making distillated soln of (I) by evaporating for 30 min. at 180 C and 5 atm., (b) soaking cotton cloth in the obtd. distillated soln for 30 min. The herb medicine inclucles e.g. sulphur, mung beans, (pepper)mint, apricot stone, coriander, adlay. etc.  The wet-towel is useful for treatment of skin inflammation.
Patent KR-910001797-B1 (KR)
Inventor: TAKEUCHI AKIHIRA
IPC: H01H50/44
Filed: 1987-11-10
Granted: 1991-03-23
Abstract: 내용 없음.
Patent KR-900005100-B1 (KR)
Title: Solid fuel-water slurry confution and it's preparaing process
Inventor: SAWADA MURIHIKO
IPC: F23K1/02
Filed: 1987-12-26
Granted: 1990-07-19
Abstract: A solid fuel-water slurry mixt. contains 100 wt.% of solid fuel-water slurry contg. 50-80 wt.% of solid fuel particles and 0.01-0.5 wt.% of a stabilizer. The stabilizer consists of 1-20 wt.% of one or more water-soluble polymers of natural rubber, its modified prods., PVA, polyacrylamide, carboxylmethyl cellulose and hydroxyethyl cellulose, and 80-99 wt.% of one or more granular inorganic substances of bentonite, attapulgite, sepiolite and chrysotile asbestos. The solid fuel particles have a geometrical average dia. of 74 microns or less.
Patent KR-910006292-B1 (KR)
Inventor: KUMADA JUNJI
IPC: H04N5/067
Filed: 1986-11-17
Granted: 1991-08-19
Abstract: 내용 없음.
Patent KR-900003634-B1 (KR)
Title: Fabric filter and its producing method
Inventor: LEE KWANG-YUN
IPC: B01D39/02
Filed: 1988-02-24
Granted: 1990-05-28
Abstract: A process for producing a nonwooven fabric filter comprises (a) cutting polypropylene film of 0.008-0.009 mm thickness to polypropylene filament of 0.01-0.015 mm width, (b) mfg. nonwooven fabric with irregular-direction structure by cutting the filament, (c) covering both sides of core material of the fabric with epidermal tissue of thermoplastic fiber such as polyethylene or polypropylene yarn, and (d) melt-fusing their seams. The filter has a good adsorptivity and air permeability.
Patent KR-910009884-B1 (KR)
Inventor: MATSO YASTOSHI
IPC: H04N5/92
Filed: 1988-03-17
Granted: 1991-12-03
Abstract: 내용 없음.
Patent KR-920007508-B1 (KR)
Inventor: MAKINO DETSUO
IPC: G06F12/16
Filed: 1988-06-17
Granted: 1992-09-04
Abstract: 내용 없음.