baber/WOPTO huggingface dataset:
Patent JO-2966-B1 (JO)
Title: Methods of recovering minerals from hydrocarbonaceous material using a constructed infrastructure and associated systems
Inventor: PATTEN JAMES W
Filed: 2010-02-10
Granted: 2016-03-15
Abstract: A method of recovering minerals from hydrocarbonaceous materials can include forming a constructed permeability control infrastructure. This constructed infrastructure defines a substantially encapsulated volume. A comminuted hydrocarbonaceous material can be introduced into the control infrastructure to form a permeable body of hydrocarbonaceous material. The permeable body can be contacted with an agent sufficient to remove minerals therefrom. The agent is typically a solution containing a solvent, leachant, chelating agent and the like via which minerals can be removed having value, toxic minerals, radioactive minerals and the like.
Patent JO-P20130273-B1 (JO)
Title: Glucosylceramide synthase inhibitors
Inventor: MARIO A CABRERA-SALAZAR
IPC: A61K31/439
Filed: 2013-09-09
Granted: 2021-08-17
Abstract: The invention relates to inhibitors of glucosylceramide synthase (GCS) useful for the treatment of metabolic diseases, such as lysosomal storage diseases, either alone or in combination with enzyme replacement therapy, cystic disease and for the treatment of cancer.
Patent KR-810001438-B1 (KR)
Title: Method of making magnetic metal particles coated with a protective layer
Inventor: KAWASAKI MEIROU
IPC: H01F1/06
Filed: 1974-01-01
Granted: 1981-10-21
Abstract: Acicular magnetic metal particles coated with a protective layer are prepd. by mixing 1-6 wt. % metal powder.  A particulate powder is composed of alkali metal or ammonium salt of 6-26 C fatty acid in an org. solvent which does not react chemically with the metal powder to form a mixt.  Diam. of the particulate powder is < 500 μ.  Suitably metal powder is Co, Co-Ni, Fe-Co, Fe-Ni or Fe-Ni-Co. The magnetic material, used in recording tape, etc., is protected against oxidn.
Patent KR-800000697-B1 (KR)
Title: Method of finishing knitted fabrics
Inventor: CHENG FUR SHE
IPC: D06C7/00
Filed: 1975-05-22
Granted: 1980-07-21
Abstract: The invention is designed to increase the density of the fabric in order to improve its dimensional stability and simultaneously impart a pill resistant, smooth surface. It consists of means of simultaneously heating and pressing the fabric by passage through the nip of two rolls at a temp. of 105≰C to 185≰C and a pressure of 135 to 175 Kg/sq. cooling by blowing air at room temp., and further heating at 100 to 180≰C to relieve the internal stresses due to the preceding steps.
Patent KR-800001141-B1 (KR)
Title: Light generation by an electrodeless fluorescent lamp
Inventor: HOLLISTOR DONALD DRURY
IPC: H05B41/16
Filed: 1976-08-13
Granted: 1980-10-12
Abstract: An electrodeless flurorescent lamp has an ionizable medium comprising a particular gas composition at a particular pressure within a sealed envelope. Radio frequency electrical power is applied to an induction coil, the magnetic induction field of which is coupled to the medium. For a particular radio frequency, the magnitude of the induction field is selected to maximize the light emitted by the discharge per watt of the radio frequency power coupled thereto.
Patent KR-810001225-B1 (KR)
Title: Soil irrigation system
Inventor: LIOYD H
IPC: E02B13/00
Filed: 1978-03-29
Granted: 1981-09-29
Abstract: An apparatus comprises; subterranean distribution pipes for distributing water to overlaying soil, each pipe having a perforated upper wall whose outer surface is covered with water permeable means for preventing said overlaying soil from fouling the perforations of said upper wall, and means integral with the retaining said water permeable means in its covering relationship with said upper wall.
Patent KR-830001211-B1 (KR)
Title: N-(1-메틸-2-피롤리디닐-메틸)-2,3-디메톡시-5-메틸설파모일 벤즈아미드의 제조방법
IPC: C07D207/08
Filed: 1979-10-04
Granted: 1983-06-24
Abstract: 내용 없음.
Patent KR-830001526-B1 (KR)
Title: 전자사진 복사기
IPC: G03G15/00
Filed: 1980-01-29
Granted: 1983-08-08
Abstract: 내용 없음.
Patent KR-800001287-B1 (KR)
Title: Process for the production of substituted arylalkylamines
Inventor: KUTTER E
IPC: C07D209/46
Filed: 1980-02-15
Granted: 1980-10-26
Abstract: Title compds. (I; R1 = H, lower alky1, Ph; R2 = H, Cl, MeO; R3 H, MeO or  forming MeO2 bonded together R2; R4, R5 = H, lower alky1; R6 = H, lower alky1; R7 = lower alkoxy or forming MeO2 or EtO2 bonded together R6; X = carbony1, sulfony1; n = 2,3), useful as heart rate decreasing agent were prepd. by reaction of II and III. Thus, 3-[N-(5,6-dimethoxy)-phthalimidine -propionaldehyde-diethylacetal and 3,4-dimethoxy-pheny1-methylamine in EtOHwere reduced with H2, using Pd/C(10%), and treated with HCl to give 5,6-dimethoxy-2N-(3-[2-(3,4-dimethoxy)-phenylethylamino -propy1)-phtalimidine-HCl.
Patent KR-820001673-B1 (KR)
Title: Voice switching circuit
Inventor: YUN JIN HYEOK
IPC: H04M1/60
Filed: 1981-03-18
Granted: 1982-09-15
Abstract: The speakerphone includes a microphone channel(10), a speaker channel(20), a voice switching circuit(40) and a hybrid(30). An amplifier(47) is connected by variable gain-control terminal of transmitter-amplifier(48).  An input of an amplifier(47) is connected by time constsnt circuit(46), comparator(43) and rectifier(42)(44).  A variable vesistor(49) is connected by an another input.  Inverter(56) is connected by variable gain-control terminal of receiver-ampglifier(57).  An input of an amplifier(57) is connected by time constant circuit(46), comparator(50) and rectifier(53).  A variable resistor(55) is connected by an another input.
Patent KR-880001119-B1 (KR)
Title: Process for preparing cephem compounds
Inventor: TAKAYA TAKAO
IPC: C07C251/60
Filed: 1982-02-02
Granted: 1988-06-30
Abstract: The cephem compds. of formula (I) and their pharmaceutically acceptable salts are prepd. by treating reactive derivs. or their salts in (II) or amine group with reactive derivs. or their salts in (III) or carboxyl group.  In the formula, R1=thiazolyl of amino, acylamino, halogen-containing amine or halogen-containing acylamino thiadiazolyl of amino or acylamino, aminopyridinyl, acylaminopyridinyl, furyl, thiazolyl, phenyl or naphthyl; R2= carboxyalkyl or ester-carboxyalkyl; R3=low alkylthio; and R4=carboxy.
Patent KR-880002581-B1 (KR)
Title: Controll circuit of motors
Inventor: UZUKKA MIZUO
IPC: H02P6/08
Filed: 1982-06-10
Granted: 1988-11-30
Abstract: The control circuit has switching transistors connected with the coils of respective phases and are selectively turned ON in response to respective switching signals for energizing the respective coils. A switching signal generating circuit is normally responsive to the rotational position of the rotor for periodically changing its condition and so providing the switching signals to the switching transistors.  An additional switching device is connected to the switching signal generating circuit and is actuable to fix the condition of the latter so that only one of the switching transistors is continuously turned ON for energizing only the respective coil.
Patent KR-900000769-B1 (KR)
Title: Devices for generating three - phase pwm waveforms for control of induction motor
Inventor: ROBERTSON JOHN W JR
IPC: H02P21/00
Filed: 1983-05-03
Granted: 1990-02-15
Abstract: A microprocessor is programmed to initialise conditions in the system, to perform a main task including the storage of converted analog signal, the checking of limits of motor motion and information feed back from the motor concerning its position, and the ramping of frequencies to change the position of the motor.  A memory is provided for the programming which also contains tables that correspond to 90 deg. of each desired wave form.  A single 90 deg. segment of each waveform is needed to generate all parts of each of the three phases.
Patent KR-860000300-B1 (KR)
Title: Process for preparing acylureide penicillin derivatives
Inventor: KIM DON-KI
IPC: A61P31/04
Filed: 1983-12-19
Granted: 1986-03-31
Abstract: Acyl ureidopenicillin derivative (I), used as an antibiotic agent, is prepared from penicillin derivative (VI) by reacting it with ethylene diisocyanate (II) having the formula OCN-CH2-CH2-NCO in a solution of dioxane, tetrahydrofuran, or dimethyl sulfoxide for 1-7hrs. at -10≰C or the reflux temp. Acyl ureido derivative (IV) is prepared from (II) by reacting it with amino acid (III) having formula NH2-CH(R1)-COOH in an organic solvent at 0≰C or an ambient temp. where R1 = phenyl or hydroxyphenyl and R2 = H, Na, K, or Ca.
Patent KR-910004784-B1 (KR)
Inventor: CADWELL DENNIS J
IPC: G21C3/34
Filed: 1983-12-29
Granted: 1991-07-13
Abstract: 내용 없음.
Patent KR-870000864-B1 (KR)
Title: Preparation process of oxalic acid
Inventor: HO NAM-IN
IPC: C07C55/06
Filed: 1984-02-10
Granted: 1987-04-30
Abstract: Oxalic acid is prepd. from carbohydrates, esp. sucrose or ethylene glycol by oxidizing them with HNO3. Thus, 3920kg sucrose, 63507kg HNO3, and 9000kg H2SO4 is reacted for 17days within a processing system composed of a preliminary reaction system, a main reaction system, a gas-oxidizing system, and an absorption system to give 46% oxalic acid(based on the sucrose consumed). Consumed HNO3  per 1 ton oxalic acid is 1819kg. The process improves the product yield and reduces the consumption of HNO3.
Patent KR-840001923-B1 (KR)
Inventor: NAKAYAMA SHIGENOBU
IPC: C07C319/02
Filed: 1984-07-19
Granted: 1984-10-25
Abstract: 내용 없음.
Patent KR-890002490-B1 (KR)
Title: Automatic device for preparing a waterspout of galvanized steel sheets
Inventor: YANG HONG-MO
IPC: B21D53/00
Filed: 1984-09-29
Granted: 1989-07-10
Abstract: In an automatic device for preparing an eaves trough of galvanized steel sheet, the steel sheet from a coil, in turns, passes through (i) rollers for supplying the steel sheet adjustably between rollers, (ii) rollers for rolling up both ends of the steel sheet, (iii) flat rollers for pressing, (iv) twosteps rollers for bending, (v) rollers for adjusting the two-steps bent angles, (vi) four-steps rollers for bending and (vii) rollers for final bending.
Patent KR-900001645-B1 (KR)
Title: Retainer for packaged optical fiber splices and organizing tray utilizing such retainers
Inventor: CHARLEBOIS LEONORD J
IPC: G02B6/44
Filed: 1984-11-20
Granted: 1990-03-17
Abstract: The packaged splice (14) is inserted into a retainer by pushing it down between the pairs of cantilever members (13).  The members deflect apart as the lower edge of the packaged splice pushed against surfaces (18).  Once the packaged splice has moved fully into the retainer, the top edge is below the ribs (17) and the members (13) snap over the packaged splice.  The splice sits in a slot (19) and is restrained from length-wise movement.  With the retainer member fitted to a tray, the packaged splice rests on the base of the tray. However, if retainers are made as individual units, or even as multiple units, without having a tray base or other surface under them, the slot can be arranged to extend only part way through a web (15).
Patent KR-920007683-B1 (KR)
Inventor: HAMADA FUKUSABURO
IPC: C07K14/02
Filed: 1985-03-16
Granted: 1992-09-14
Abstract: 내용 없음.
Patent KR-920005911-B1 (KR)
Inventor: IRWOI SATAHOLMA
IPC: B01D3/06
Filed: 1985-03-30
Granted: 1992-07-24
Abstract: 내용 없음.
Patent KR-940000075-B1 (KR)
Inventor: PIZTER ROGER
IPC: C08G14/08
Filed: 1985-04-30
Granted: 1994-01-05
Abstract: 내용 없음.
Patent KR-880000410-B1 (KR)
Title: Sharp pencil
Inventor: MITSUYA YOSHIHIDE
IPC: B43K21/16
Filed: 1985-07-26
Granted: 1988-03-22
Abstract: The propelling pen includes a chuck ring arranged to move in the axial direction to hook a lead chuck, another chuck ring arranged to advance by the action of the lead chuck on knocking actions of the knock cap, and a movable hook member for pressing the lead chuck into the chuck ring on the retreat side of the refill lead.
Patent KR-870000490-B1 (KR)
Title: Method of/and apparatus for attaching fly strips to a slide fastener chain
Inventor: MIYAKAWA GAZUO
IPC: D05B33/00
Filed: 1985-08-07
Granted: 1987-03-12
Abstract: Method and appts. for sewing a succession of separate articles to a continuous slide fastener chain (F), pref. fly strips(P), in which the method comprises superimposing a following fly strip (P) upon a preceding strip(P), and sewing (14) the latter while delaying (12) feed (4,50) of the following strip (P) until the tail end of the preceding strip (P) is sensed by a detector system(PHS). Separate articles(P) for sensed by a detector system (PHS). Separate articles (P) for sewing to a continuous slide fastener chain (F) are disposed with a following article (P) superposed, and are engaged by a guide system which includes a stop (12) for delaying the following article during sewing of the preceding one. Sensors(PHS) detect passage of the tail end of the following article and also release the stop(12).
Patent KR-920008768-B1 (KR)
Inventor: WEAVER WILLIAM R
IPC: B29C70/76
Filed: 1984-09-24
Granted: 1992-10-09
Abstract: 내용 없음.
Patent KR-900001813-B1 (KR)
Title: Schmittrigger circuit
Inventor: KOINUMA HIROYUKI
IPC: H03K3/3565
Filed: 1986-09-26
Granted: 1990-03-24
Abstract: The schmitt circuit comprises a transistor of depletion type, in which the drain is connected to a power source and the gate and source are connected to each other.  Second and third transistors of enhancement type are connected in series between the node where the gate and source of the first transistor are connected together and a second power source, and the gates of the second and third transistors are connected to each other.  A fourth transistor of enhancement type in which the drain is connected to the first power source and the gate is connected to the node where the gate and source of the first transistor are connected together.
Patent KR-880001739-B1 (KR)
Title: Melt-spinning methods
Inventor: SONO HIROAKI
IPC: D01F9/00
Filed: 1986-10-29
Granted: 1988-09-10
Abstract: The improved centrifugal spinning appts. for spinning molten pitch has heating means provided in the spinner disc, the heating means being electrically conductive heating material, in appts. including the spinner disc with a top wall, a bottom wall and a side wall, the top and bottom walls being connected to each other, a number of spinning nozzles being formed in the side wall, and the spinner disc being rotated at high speed to spin molten pitch into fibers through the spinning nozzles.  The heating means comprises planar heating members each fixed in contact with outer surfaces of at least the top and bottom wall of the spinner disc, eahc of the planar heating members being made of electrically conductive heating material.
Patent KR-890003167-B1 (KR)
Title: Method of polyester cloth
Inventor: RYU WOO-TAE
IPC: D06M11/00
Filed: 1986-12-30
Granted: 1989-08-25
Abstract: Prepn. of the polyester cloth having the good anti-static and absorptive property comprises weaving and knitting the mixed yarn of an org. conductive fiber and polyester composite fiber contg. akali- soluble and/or -unsoluble component; extracting and removing the soluble component by treating with alkali; and then paddingdrying- heat treating the yarn with a hydrophilic prepolymer solution.
Patent KR-950004606-B1 (KR)
Inventor: ONARI MIKIHIKO
IPC: B60W50/00
Filed: 1987-05-02
Granted: 1995-05-03
Abstract: 내용 없음.
Patent KR-900005155-B1 (KR)
Title: Automatic answering method of speaker phone
Inventor: LEE JONG-WOO
IPC: H04M1/60
Filed: 1987-05-23
Granted: 1990-07-20
Abstract: The answering method for switching the subscription line to the speaker  phone whenthe number of ring signal is matched to the preset ring number stored in a memory so that the called person who is in busy have not to pick up the hand set and communicate the call through the speaker.
Patent KR-960007163-B1 (KR)
Inventor: WACHTER MICHAEL PAUL
IPC: C07D401/12
Filed: 1987-05-29
Granted: 1996-05-29
Abstract: 내용 없음.
Patent KR-930001230-B1 (KR)
Inventor: ARAI TOHRU
IPC: C23C8/44
Filed: 1987-07-07
Granted: 1993-02-22
Abstract: 내용 없음.
Patent KR-910004557-B1 (KR)
Inventor: NISHIOKA NOBUO
IPC: C21D1/74
Filed: 1987-08-12
Granted: 1991-07-06
Abstract: 내용 없음.
Patent KR-950012845-B1 (KR)
Inventor: KROMREY ROBERT V
IPC: B29C70/44
Filed: 1987-09-08
Granted: 1995-10-23
Abstract: 내용 없음.
Patent KR-900003680-B1 (KR)
Title: Air dryer apparatus for use with pneumatic operative device
Inventor: YANAGAWA ICHIRO
IPC: B01D53/26
Filed: 1987-10-21
Granted: 1990-05-30
Abstract: Improved air dryer appts. has closing operation on the part of the exhaust system of a pneumatic device amde only upon the opneing of a purge valve. (a) The air dryer appts. and the pneumatic devices are provided in communication with each other at the outlet opening of the air cryer appts. and the exhaust ports of the pneumatic devices by way of purging passages; (b) there are second check valves on the way of the purging passages in such a manner that its forward working direction may be headed towards the outlet opening of he air dryer appts.; and (c) exhaust valve means having an exhaust valve body are formed integrally with the valve body of the purge valve, and adapted to operated so that the exhaust valve body is opened when the purge valve body is in a closed position.
Patent KR-950006348-B1 (KR)
Inventor: HALUSKA LOREN A
IPC: H01L21/318
Filed: 1987-12-02
Granted: 1995-06-14
Abstract: 내용 없음.
Patent KR-950014508-B1 (KR)
Inventor: NORBERT ELGELDINGER
IPC: G11B15/10
Filed: 1986-08-05
Granted: 1995-12-02
Abstract: 내용 없음.
Patent KR-910002400-B1 (KR)
Inventor: KOJI MURAYAMA
IPC: F04B27/14
Filed: 1988-01-26
Granted: 1991-04-22
Abstract: 내용 없음.
Patent KR-970000207-B1 (KR)
Inventor: NAKAZIMA HIROKAZU
IPC: C08L53/00
Filed: 1988-02-26
Granted: 1997-01-06
Abstract: 내용 없음.
Patent KR-910005459-B1 (KR)
Inventor: HIGASINO SIGENORI
IPC: H02M7/5387
Filed: 1988-03-31
Granted: 1991-07-29
Abstract: 내용 없음.
Patent KR-900005477-B1 (KR)
Title: Electric by heated steam quality meter and its method
Inventor: HAYES JAME K
IPC: G01N1/22
Filed: 1988-04-06
Granted: 1990-07-30
Abstract: Steam quality meter with electrically heated sensor tube assembly converts saturated steam to superheatd steam at temperature of 50-100 degree F for differential pressure measurements. The steam quality meter composes of a sample line for extracting wet steam  from source with constant volocity; heater unit including steam superheating means; means for measuring total steam flow, mean for measuring steam temperature of inlet, means for measuring superheated steam temperature of outlet, means for measuring counting or displaying steam quality according to saturated steam, total steam flow, power from heater.
Patent KR-960001065-B1 (KR)
Inventor: HIHARA TOSHIO
IPC: C09B62/51
Filed: 1988-04-09
Granted: 1996-01-18
Abstract: 내용 없음.
Patent KR-0140399-B1 (KR)
Inventor: SHIIKARISUTO MAIKURU AARCC
IPC: H01L21/8222
Filed: 1988-07-15
Granted: 1998-07-15
Abstract: 내용 없음
Patent KR-930011595-B1 (KR)
Title: Multi-broadcasting receiving system having common use image if circuit
Inventor: KWON TAE-HO
IPC: H04N5/46
Filed: 1988-08-31
Granted: 1993-12-13
Abstract: The PIF circuit  which  makes  a  sound  detector  in  common comprises: a SIF trap circuit (2)  trapping  the  frequency  in  a sector 4.5 MHz apart from the PIF for NTSC signal; a  SAW  circuit (3) trapping the frequency in sectors respectively 5.5 MHz and 6.5 MHz apart from the PIF for PAL and SECOM; a video detector circuit (4) producing the composite  signal  to  be  trapped  by  a  sound trapping circuit (5); a video trapping circuit  including  ceramic filter; a mixer (7) feeding SIF signal to  a  sound  detector  (8) which produces the FM sound signal.
Patent KR-910005776-B1 (KR)
Title: Radar
Inventor: CHEI YOUNG-HO
IPC: G01S1/42
Filed: 1988-10-14
Granted: 1991-08-03
Abstract: The apparatus finds out the objects like the stolen  vehicles or lost  children  with  the  chirp  signal  which  frequency  is periodically varied. The chirp signal  generated  at  the  central station is received at the receiver installed at the objects.  The the transmitter combined to the receiver  transmits  the  received chirp signal  adjusted  its  gain  automatically  to  the  central station. The central station calculates the distance by using  the time difference between the transmitted and reflected chirp signal so that the object position is found out.
Patent KR-910004794-B1 (KR)
Title: Parking garage with mechanical means
Inventor: CHOE CHANG-JOONG
IPC: E04H6/18
Filed: 1988-11-26
Granted: 1991-07-13
Abstract: The system using an elevator, performs simplified parkings in narrow spaces such as an apartment  or  department  store  parking lot. The system comprises support  wall  (2)  for  both  sides  of elevator (1); T-shaped supporting guide column (3) at  the  front, rear, upper sides of (2), and L-shaped supporting guide-column (4) at the lower side of (2); rollers (6)(6a) for contacting with  (4) at car loading frame (5), and rollers (8)(8a) for contacting  with (3) on vertical support column (7); wire rope (9)  for  connecting (5) with (7), maintaining a horizontal level of (5); two pairs  of racks (10),(10a) ,(11)(11a) being respectively meshed with  pinions (13), (13a),(14) ,(14a),(15),(15a); magnet (12) being  attached  on the edge of racks; belt or chain (17) for connecting rotary  shaft (16) of motor with each of racks.
Patent KR-0141835-B1 (KR)
Inventor: PARK HONG-CHOL
IPC: G03B21/10
Filed: 1989-01-31
Granted: 1998-07-01
Abstract: 내용 없음
Patent KR-970003162-B1 (KR)
Inventor: KARSTEN LAING
IPC: F24D3/10
Filed: 1989-03-06
Granted: 1997-03-14
Abstract: 내용없음.
Patent KR-960016412-B1 (KR)
Inventor: SHOEMAKER KENNETH D
IPC: G06F12/04
Filed: 1989-03-14
Granted: 1996-12-11
Abstract: 요약없음.
Patent KR-930006342-B1 (KR)
Title: Process for controlling an electrolysis cell
Inventor: BOUCHE-PILLON BERNARD
IPC: C25B15/02
Filed: 1989-03-17
Granted: 1993-07-14
Abstract: This cell comprises means for measuring and controlling the entry and exit flow rates, the temperature of the electrolyte, the various concentrations and the current; all these means are connected to a calculating system which determines what are the most probable values of the flow rates, concentrations and current, which is called a coherence treatment, and thus delivers signals to the controlling means. This process is particularly useful for the electrolysis of NaCl in the production of chlorine and sodium hydroxide.
Patent KR-940003315-B1 (KR)
Inventor: TOMIOKA MITSUHARU
IPC: F24H9/20
Filed: 1989-05-15
Granted: 1994-04-20
Abstract: 내용 없음.
Patent KR-0177503-B1 (KR)
Inventor: BENNET ROBERT P
IPC: F25D23/12
Filed: 1989-06-02
Granted: 1999-05-15
Abstract: 내용 없음.
Patent KR-950003066-B1 (KR)
Inventor: STOLL KURT
IPC: F15B15/28
Filed: 1989-08-18
Granted: 1995-03-30
Abstract: 내용 없음.
Patent KR-930012234-B1 (KR)
Inventor: MURAYAMA AKIRA
IPC: F24F11/00
Filed: 1989-10-06
Granted: 1993-12-24
Abstract: 내용 없음.
Patent KR-920000466-B1 (KR)
Inventor: INOUE KANJI
IPC: A61F2/958
Filed: 1989-10-27
Granted: 1992-01-14
Abstract: 내용 없음.
Patent KR-0156102-B1 (KR)
Inventor: KIM HEE-SUK
IPC: H01L21/316
Filed: 1989-12-18
Granted: 1998-12-01
Abstract: 내용없음
Patent KR-920006235-B1 (KR)
Title: Fixing method of grid terminal in vacuum fluorescent display tube
Inventor: CHA UNG-JO
IPC: H01J31/10
Filed: 1989-12-30
Granted: 1992-08-01
Abstract: The vacuum fluorescent  display  (VFD)  is  manufactured  by; forming the grid and the filament isolatedly on a glass  substrate coated with a segment electrode,  wiring  pattern  and  insulation film; enclosing the substrate with glass  to  seal  at  in  vacuum state. The sintered chip frit containing a mixture of PbO and SiO2 is placed on the terminal (8) of glid (5)  electrically  contacted with wiring pattern using the conductive paste. The frit melted by sintering at 440 deg.C  for  10  minutes  flows  around  the  grid terminal to coat the grid by decreasing the temperature.
Patent KR-930006094-B1 (KR)
Inventor: YAGUCHI TOSHIYUKI
IPC: G01R31/28
Filed: 1990-02-07
Granted: 1993-07-07
Abstract: 내용 없음