baber/WOPTO huggingface dataset:
Patent KR-840001046-B1 (KR)
Title: Recovery of tungsten valnes from tungsten-bearing materials
Inventor: JAMES JHOGE STEEVEN
IPC: C22B34/30
Filed: 1979-12-14
Granted: 1984-07-26
Abstract: Tungsten values are extracted from tungsten-bearing material or refined ore using alkali metal carbonate or chloride Sheelite, Woolframite or refined ore powder contg. tungsten more than 20 wt.% in forms of WO. These are mixed with enough sodium carbonate or chloride powder, and annealed without melting. Annealing temp. is below 800≰C and annealing time is within 2 hours. The annealed product is solved in water and tungsten values are extracted from the solution in the form of alkali metal tungstate. The annealed product is then treated again as above to extract more tungsten.
Patent KR-830002556-B1 (KR)
Title: Pll 회로
IPC: H04N9/24
Filed: 1980-06-05
Granted: 1983-11-12
Abstract: 내용 없음.
Patent KR-840001954-B1 (KR)
Title: Process for preparing macro lide
Inventor: BALZ RICHARD HENRY
IPC: C12P17/08
Filed: 1981-07-01
Granted: 1984-10-26
Abstract: The prepn. of tylactone[1  (20-dihydro-20,23-dideoxy tylonolide) involves cultivating Streptomyces fradiae NRRL 12188 or an appropriate mutant or recombinant under submerged aerobic fermentation conditions. The culture medium contains sources of C, N and inorganic salts. A biologically pure culture of the microorganism is also claimed. Only minor amts. of tylosin are obtained by this process. Tylactone can be used to prepare compounds of formula(II), where R and R1 are acyl. (I) and (II) are useful intermediates from which 16 membered macrolide antibiotics can be prepd.
Patent KR-830002323-B1 (KR)
Title: 단추 봉착방법
IPC: A41H37/10
Filed: 1982-05-24
Granted: 1983-10-22
Abstract: 내용 없음.
Patent KR-880002700-B1 (KR)
Title: Crystolloid alumino silicate slurry
Inventor: AIMOTO MICHIUKI
IPC: C09K23/52
Filed: 1982-10-23
Granted: 1988-12-26
Abstract: Aqueous crystalline aluminosilicate slurry contains 30-52 wt.% of crystalline aluminosilicate of formula Na2O.Al2O3.WH2O (N is 1.8-3, and W is 1-6), and high molecular wt. sulphonated polystyrene and/or copolymer of sulphonated styrene and carboxylic acid or its salt as a dispersion stabilizing agent.
Patent KR-900005411-B1 (KR)
Title: Organic matrix composites resin reinforced with intercalated graphite
Inventor: LINCOLN VOGEL F
IPC: H01B1/24
Filed: 1982-11-20
Granted: 1990-07-30
Abstract: An electrically conductive composite comprising about 10-65 vol.% of an intercalated graphite cpd. relative to the vol. of the composite, in a remaining vol.% of org. polymer metrix, where in the intercatalated graphite cpd. is selected from: graphite and strong acid; graphite and halide salt; or Bronsted acid and a metal halide. Pref. the strong acid is selected from HF, H2SO4, HClO4, HClO3, HNO3, HNO2, HIO4, HBrO4, HBrO3, HIO3 or CF3CO3H. Said intercalated graphite cpd. is in the form of flakes, fibers, filaments, a powder or crystals prior to its incorporation into the composite.
Patent KR-870000496-B1 (KR)
Title: Process for the preparation of thioethers
Inventor: BRUYNES CORNELIS A
IPC: C07C321/30
Filed: 1983-03-29
Granted: 1987-03-12
Abstract: Thioethers were prepd. by treating RSSiR1R2R3 (R=org. group; R1,R2,R3=C1-4 alkyl) with org. halides, sulfates, or sulfonates in the presence of hexamethylphosphoric triamide under neutral conditions in aprotic solvents. Thus, treating PhCH2Br in MeCN and hexamethylphosphoric triamide with PhSSiMe3 in MeCN(1.5 h, 50≰C) gave a 97% yield of PhCH2SPh. Among the other 24 thio ethers prepd. were; EtSPh, (PhS)2CH2, 4-ClC6H4SC6H4NO2-4,5-benzylthio-2methyl-1,3,4- thiadiazole, and 7-phenylacetamido-3-(4-chlorophenyl) thiomethyl-3- cephem-4-carboxylic acid 1-oxide.
Patent KR-900004496-B1 (KR)
Title: Bleanching composition
Inventor: CHUNG STANLEY Y M
IPC: C11D3/39
Filed: 1983-06-29
Granted: 1990-06-28
Abstract: A laundry bleaching compsn. for use in domestic automatic washing machines comprises (a) 1-30 wt.% of the composition of a surfactant selectrd from anionic, nonionic and cationic classes and compatible mixtures thereof, (b) 1-60 wt.% of peroxygen bleaching compound of yielding hydrogen peroxide in an aqueous solution, and (c) 0.5-40 wt.% of a bleach activator having the formula R-C(=O)-L, [R= C5-18 alkyl  L= leaving gp.; pKa= 6-13 !. The molar ratio of hydrogen peroxide yielded by (b) to bleach (c) is greater than 1.5. The compsn. is effective over wide temp. ranges of bleaching soln.
Patent KR-900005026-B1 (KR)
Title: Substituted anha (1,9-cd) pyrazol -6 (2h)-ones and preparing process thereof
Inventor: SHOWALTER HOWARD D M
IPC: C07C45/00
Filed: 1983-07-23
Granted: 1990-07-18
Abstract: Substdd anthra (1,9-cd) pyrazol-6(2H)-ones of formyla (I) are prepd. by reacting a cpd of formula (II) with a HNRY. In the formulas, X,X' and W are each H, OH, Cl or C1-4 alkoxy; R is H or C1-6  alkyl; Y is H or substd. OR1 or ANR2R3 C1-6 alkyl; R1 is H or C1-6 alkyl; A is a straight or branched C2-8 alkylene; R2 and R3 are each H, OH substd. alkyl or NRaRa; Ra is H or OH substd. C1-3  alkyl; n and m are each 1-3; Z is H or DNR2R3; D is a OH substd. straight or branched C2-8 alkylene. (I) are useul as antibacterial, antifungal, antitumour and antileukaemia agents.
Patent KR-890001529-B1 (KR)
Title: Method for injection molding a composite parison
Inventor: AOKI KATSHI
IPC: B29C49/06
Filed: 1983-08-31
Granted: 1989-05-06
Abstract: A method for injection moulding of a composite parison comprises injecting molten resin into a cavity formed by cooperating mould parts to mould an outer neck portion of the parison and transporting the outer layer still in contact with the corresponding mould part to a second moulding station.  Male and female parison forming moulds for forming the main parison portion are brought together at the second station to clamp the mould part holding the previsously formed outer neck portion to form a continuous cavity.  Molten resin is injected into the continuous cavity to mould the main parison including an inner neck portion.
Patent KR-860000459-B1 (KR)
Title: Machine for treatment of paper money
Inventor: MARUYAMA NOBUSADO
IPC: B65H39/00
Filed: 1983-10-14
Granted: 1986-04-28
Abstract: The appts. has a batch feeder for carrying batches of paper sheets. Each batch is banded with a wrapping band. A batch-takeout device takes out batches of notes from the feeder one by one. A band-cutting section holds the other side portion of the wrapping band while bending the batch in one direction. One side portion of the band is cut while the batch is bent in the other direction. A band catcher holds the other side portion of the band. An inspection unit is provided between the batch-take-out section and band-cutting section to clarify the batches in a machinable and an unmachinable groups.
Patent KR-880000117-B1 (KR)
Title: Optical radiator
Inventor: MORI KEI
IPC: G02B6/14
Filed: 1983-10-21
Granted: 1988-03-12
Abstract: A light radiator comprises two cylindrical optical rods (1,2) which end parts are engraved with various types, e.g. circular cone.  Each top of the engraved form has a flat plane (1a, 2a).  A part of light rays guided into the rod (1) are passed through the plane (2a), but the rest of them are reflected on the slope surface (2b) to radiate the light rays with broad radiating angle. The light radiating angle can be varied by changing the sloping angle of (2b).
Patent KR-910005170-B1 (KR)
Inventor: YAMADA MUNEAKI
IPC: B29C49/08
Filed: 1984-02-08
Granted: 1991-07-23
Abstract: 내용 없음.
Patent KR-860000443-B1 (KR)
Title: Process for preparing dental floss containing fluoride compound and its holder
Inventor: CHO MYONG-HO
IPC: A61C15/04
Filed: 1984-02-15
Granted: 1986-04-26
Abstract: Dental floss is prepd. by the permeation of fluoride compound. NaF permeates through dental floss by following methods: NaF powder permeates through dried dental floss by agitation; Dried dental floss is dipped in the mixt. of NaF and CMC; Dried dental floss is dipped in paraffin oil mixed with NaF. Then, the dental floss is coated with paraffin wax. The instant dental floss holder comprises body(5), movable end(6), rings(7,11), and props(9) holding the dental floss(12) .
Patent KR-840001772-B1 (KR)
Title: Process for preparing the 1-hydroxyethyl-azole derivatives
Inventor: HOLMWOOD GRAHAM
IPC: A01N43/647
Filed: 1984-07-19
Granted: 1984-10-19
Abstract: Title compds. I(R=alkyl, (un)substituded cycloalkyl, Ph; Z=halo, alkyl, cycloalkyl, alkoxy, alkylthio, etc.; X=N, CH; m=0-3), useful as plant growth regulators and fungicides, were prepd. by reaction of II and III. Thus, 2-(4-chlorophenylethenyl)-2-ter-buty-oxirane and 1,2,4-triazole in EtOH refluxed at 150oC for 20hr to give I(Z=Cl, m=l, R=CMe3, X=N)
Patent KR-910004068-B1 (KR)
Inventor: FUJISHIMA DAISHIRO
IPC: A23L3/3436
Filed: 1984-07-26
Granted: 1991-06-22
Abstract: 내용 없음.
Patent KR-860000750-B1 (KR)
Title: Process for the preparation of substituted phenoxybenzyloxy carbonyl derivatives
Inventor: FUCHS RAINER
IPC: C07C67/03
Filed: 1984-11-05
Granted: 1986-06-18
Abstract: Prepn. of substd. phenoxy benzyloxy carbonyl derivs. of compd. (I) comprises reacting a benzoxy benzyl halide of compd. (II) with hexamethylenetetramine, where Y is halogen. The compd. (I), esp. 2- fluoro-5-phenoxy benzaldehyde, is prepd., e.g. by refluxing 2-fluoro- 5-phenoxy benzyl bromide and hexamethylene tetramine in the presence of methylene chloride, extracting with ether, and distilling under vacuum. (I) is useful as a starting material for the prepn. of substd. phenoxy benzyloxy carbonyl derivs. (A) of insecticide.
Patent KR-890004770-B1 (KR)
Title: Logic circuit
Inventor: SUYAMA KATSUIKO
IPC: H03F3/34
Filed: 1985-02-18
Granted: 1989-11-25
Abstract: The clamp circuit is provided by two diodes connected in parallel between the output terminals of the logic circuit. These are constituted by the drain terminals of the driver FETs. The diodes act to limit the potential difference between the anode and cathode to a value equivlanet to the build-in voltage of the gate junction.  If the voltage is below the reference voltage the first and second transistors are off, on respectively.  When the terminals voltage exceeds that of the second terminal by the gate junction voltage then the following relationships are set up: VOl=VD2-I0, RL/2-BI/2 V02=VDD-I0.RL/2-VB1/2.
Patent KR-880002332-B1 (KR)
Title: Ball glove with flexible web
Inventor: HOWARD JOHN R
IPC: A63B71/14
Filed: 1985-04-02
Granted: 1988-10-26
Abstract: The invention is a baseball glove having a web which stretches with flexibility even without working it by use.  The web is made of leather or artificial leather and has a number of slits arranged in sets of slits each positioned with different distances from the center of the web.  The slits are arc-formed around the center with different sizes.
Patent KR-900000627-B1 (KR)
Title: Complex type magnetic head and method of its producing
Inventor: IBARAKI ATSUSHI
IPC: G11B5/265
Filed: 1985-10-25
Granted: 1990-02-01
Abstract: A composite magnetic head has two 'C' cores (32,42) of magnetic material to which are bounded 'I' core plates using a non magnetic material, e.g. glass or silicon dioxide.  The top edges of both formed 'CI' blocks are machined to form record (35) playback and erase (45) grooves.  The two blocks are joined together to form a signle unit (50) and the record and erase grooves are filled with a non magentic material at the interface between the two blocks.  There is a channel section that is also filled with a bonding material (54) to provide increased machanical strength.  The complete assembly is cut into sections (c) to form individual units.  Windings are located in the channel sections (36).
Patent KR-890004516-B1 (KR)
Title: Starting control apparatus for automatic transmission system
Inventor: TATENO TOSHIAKI
IPC: B60W10/11
Filed: 1986-03-29
Granted: 1989-11-10
Abstract: A starting control appts. for an automatic speed change gear has detectors for synchronous rotations of the engine and clutch allowing the control of clutch engagement.  An accelerator fake signal voltage is determined on the basis of an object and an actual number of rotations per unit time and is output to a controller.  When the peak number of rotations of the engine agrees with the number of rotations of a clutch (15), the clutch is completely engaged.  When non- synchronous rotation of the engine and clutch is determined, the clutch is operated in a halfengaged condition.  When complete engagement of the clutch is detected, the signal gradualy decreases the accelerator false signal voltage.
Patent KR-900006106-B1 (KR)
Title: Method for high-tensile chain steel having a good impact-proof and welding property
Inventor: LEE SEUNG-RYONG
IPC: C22C38/12
Filed: 1987-05-11
Granted: 1990-08-22
Abstract: The high tensile chain steel is prepared by the stages of mixing 0.20-0.34 wt.% carbon, 0.20-0.40 wt.% silicon, 1.30-1.90 wt.% manganese, max. 0.03 wt.% phosphorus, max. 0.03 wt.% sulfur, 0.01- 0.20 wt.% vanadium and 0.03-0.06 wt.% aluminium with steel, heating at the temp. of 1250±20 deg.C, pressing at the temp. of 925±25 deg.C, quenching and tempering at the temp. of 850-860 deg.C. The chain steel has a good impact-resistance and welding property and strength.
Patent KR-900006171-B1 (KR)
Title: Resistance device and electron tube having the same
Inventor: NIKAIDO MASARU
IPC: H01C7/00
Filed: 1987-06-25
Granted: 1990-08-24
Abstract: Resistor, partic. for voltage dividing in an electron tube consists of an insulation substrate (27) on one surface of which resistive material is printed to form an integral meandering layer (29). The resistive material consists e.g. of Ru oxide, Pb oxide and inorganic vitreous mixture. A number of electrodes (28) are of similar material but with higher Ru oxide/vitreous component ratio. An insulation layer overcoats the resistive layer but not the electrodes and is prepared from borosilicate Pb glass contg. 0.5-10% Fe oxide and an oxide of at least one transition metal, selected from the gp. Ni, Cr, Co, Zn, Cu, Zr, and Cd.
Patent KR-960001695-B1 (KR)
Inventor: LOOMANS MAURICE EDWARD
IPC: C07C217/48
Filed: 1987-06-27
Granted: 1996-02-03
Abstract: 내용 없음.
Patent KR-940001673-B1 (KR)
Title: Apparatus for axially positioning a roll of a rolling mill for making a metal profile or steel structural shape
Inventor: ENGEL GEORG
IPC: B21B31/18
Filed: 1987-08-21
Granted: 1994-03-05
Abstract: The roll is seated in radial bearing (2) which is fitted in adapter element (3). The adapter element is slidable on roll stand (4). A separate axial bearing (5) is fitted in housing (6) by bearing cover (7). The cover has an extension in form of a piston rod (7a) which carries a ring piston (7b) which operates in double-acting hydraulic cylinder (8) arranged concentrically to the roll (1). The cylinder is fitted on two journals (9) allowing slight swivelling movement to take up deflection of the roll. For detecting the actual value position emitter (13) is fitted on the roll stand (4) facing the front surface of the rolls with movable element (14) in contact with side bar fixed on the bearing cover (3a).
Patent KR-960006306-B1 (KR)
Inventor: IROTOIR JAEN-PAUL
IPC: C08J5/00
Filed: 1987-11-11
Granted: 1996-05-13
Abstract: 내용 없음
Patent KR-960000488-B1 (KR)
Inventor: WOODRUFF ROGER W
IPC: F22B37/10
Filed: 1987-12-14
Granted: 1996-01-08
Abstract: 내용 없음.
Patent KR-900003635-B1 (KR)
Title: Jig for chemical sprayer
Inventor: SON CHUL-SOO
IPC: B05B1/14
Filed: 1988-02-08
Granted: 1990-05-28
Abstract: The auxiliary unit for chemical sprayer includes an openning edge (4) to fix a outer frame (1), a nozzle part (2) which consists of a number of nozzles (7) formed at the upper of a inflow tube (6), and a joint part (3) in which a screw (8) is formed to joint an existing sprayer.
Patent KR-950005230-B1 (KR)
Inventor: THOMPSON STEPHAN P
IPC: G09G1/16
Filed: 1988-02-20
Granted: 1995-05-22
Abstract: 내용 없음.
Patent KR-960001034-B1 (KR)
Inventor: USHIO AKIRA
IPC: B32B15/08
Filed: 1988-04-02
Granted: 1996-01-17
Abstract: 내용 없음.
Patent KR-950003851-B1 (KR)
Title: Mono-ester as fiber and fabric treatment composition
Inventor: WALLEY DARLENE R
IPC: C07C209/08
Filed: 1988-04-30
Granted: 1995-04-20
Abstract: Mono-ester analogs of ditallow dimethyl ammonium chloride provide fiber and fabric softener/antistatic compositions.
Patent KR-910009825-B1 (KR)
Inventor: OHODA MASAHIRO
IPC: C08L81/02
Filed: 1988-06-02
Granted: 1991-11-30
Abstract: 내용 없음.
Patent KR-900003744-B1 (KR)
Title: Microorganism for producing of serratiopeptidase, serratia marcescens
Inventor: CHUNG SUNG-OH
IPC: C12N1/20
Filed: 1988-06-27
Granted: 1990-05-30
Abstract: The serratiopeptidase-producing microorganism which is a mutant of Serratia marceseens (ATCC 2541) is presented. The title microorganism is derived by the mutation with ultra violet ray or N-methyl-N'- nitro-N-nitrosoguanine to inhibit the production of prodigiosin pigment as by-product. The production of serratiopeptidase is carried out in the medium containing glucose as a carbon source and ammonia salts as nitrogen sources.
Patent KR-920002898-B1 (KR)
Inventor: HORTA TOSHINORI
IPC: H04B7/185
Filed: 1988-11-23
Granted: 1992-04-06
Abstract: 내용 없음.
Patent KR-930006455-B1 (KR)
Inventor: SUZUKI HIROYUKI
IPC: H04N5/45
Filed: 1988-11-30
Granted: 1993-07-16
Abstract: 내용 없음.
Patent KR-910005959-B1 (KR)
Inventor: KONDO KENSHI
IPC: B23K1/008
Filed: 1988-12-02
Granted: 1991-08-09
Abstract: 내용 없음.
Patent KR-920005438-B1 (KR)
Inventor: IWAMOTO NORIHIRO
IPC: B22D17/32
Filed: 1989-01-25
Granted: 1992-07-04
Abstract: 내용 없음.
Patent KR-920002648-B1 (KR)
Title: Fluorescent substance
Inventor: KIM UNG-SU
IPC: C09K11/84
Filed: 1989-04-03
Granted: 1992-03-31
Abstract: The red  pigment  adhered  fluorescent  is  characterized  by adhering a pigment i.e. MnFe2O4 or MgFe2O4  Y2O2S:Eu,  Y2O3:Eu  or Gd2O2S:Eu. The pigment is produced by mixing a metal oxide (MgO or MnO2) with an iron oxide (Fe2O3) by  the  wet-  or  dry-ball  mill method, and firing the mixture at 500-800 deg.C for 0.5-2 hr.  The pigment has a strong water-insolubility and  heat-resistance,  and has a high spectral reflectivity in 500 nm wavelength or more.
Patent KR-910004796-B1 (KR)
Title: Prefabricated garage
Inventor: CHO BONG-JONG
IPC: E04H6/10
Filed: 1989-04-27
Granted: 1991-07-13
Abstract: The frame for using at a narrow parking  place  is  installed over the existing parking facilities. Support column structure (1) for the frame, comprises a base plate (4) having lower turn-buckle connecting mount (5) and inner insert tubes (3,3');  support  tube (12)(12') having a  bracket  (13')  for  connecting  support  arms (14)(14') which  slantedly  supports  traverse  bar  (11);  column (2,2') connected with upper  fixing  plate  (8)  having  an  outer insert tube (10) and joining with turn-buckle connecting  bar  (9) and the bar (11); vertical tension  turn-buckle  (19,19')  between (9) and (5). The frame enables it to be installed in a short time, and offers high- efficency parking without a power supply.
Patent KR-920004405-B1 (KR)
Inventor: NAKAMURA TOBUTAKA
IPC: G06F12/06
Filed: 1989-09-12
Granted: 1992-06-04
Abstract: 내용 없음.
Patent KR-930001158-B1 (KR)
Inventor: MURATA YUKIO
IPC: H04M1/26
Filed: 1989-09-30
Granted: 1993-02-19
Abstract: 내용 없음.
Patent KR-940010881-B1 (KR)
Inventor: AICHI TAKAO
IPC: B41J2/165
Filed: 1989-10-07
Granted: 1994-11-19
Abstract: 내용 없음.
Patent KR-910008407-B1 (KR)
Title: Coating method with vibration of sound-waves
Inventor: RYU SUK-WON
IPC: B05D5/00
Filed: 1989-10-23
Granted: 1991-10-15
Abstract: A method for electrodepositing a coated film is characterized by painting a paint on the surface of the coloring plate to form a coated film, irradiating an acoustic wave on the  surface  of  the point before the painted paint is dryed, and rapidly exhausting  a volatile gas in  the  paint  by  the  cavitation  to  shorten  the solidification time of the paint. The method  gives  an  excellent electrodepositing and smoothing characteristic.
Patent KR-930002003-B1 (KR)
Title: Polyamide resin composition
Inventor: YO KI-HAK
IPC: C08K3/34
Filed: 1989-12-28
Granted: 1993-03-20
Abstract: The   low-deformation,   anti-abrasion   polyamide    resin composition is prepared by mixing 100 wt.pts. of polyamide  resin, 15-100 wt.pts of glass fiber and 15-100 wt.pts. of caolin, and  at the same  time  adding  8-50  wt.pts.  of  molybdenum.  Pref.  the polyamide resin  is  selected  from  polyamide  6,  polyamide  66, polyamide 12, polyamide 11, polyamide 10, polyamide 4 or copolymer thereof. The obtd.  low-deformation  and  anti-abrasion  polyamide resin compsn. has  excellent  thermal  properties  and  mechanical properties.
Patent KR-0128343-B1 (KR)
Title: Fault-tolerant error-correcting storage system
Inventor: GOODLANDER THEODORE J
IPC: G06F3/06
Filed: 1988-05-31
Granted: 1998-04-14
Abstract: A storage device system (40) for computers capable of dynamically and transparently reconstructing lost data is described comprising a plurality of first individual storage devices (16) for storing digital nformation and a second individual storage device (16) for storage devices (16 min ) for storing error/recovery code bits. There is logic for generating and storing error/recovery code bits in the second individual storage device (16 min ) according to a pre-defined parity checking algorithm for the digital information and logic for using the error/recovery code bits to reconstruct a changed bit in error in the digitalo information according to the parity checking algorithm. An interface (60, 56, 46, 18, 14) is disposed to receive read and write requests from a user CPU (10, 54) and a plurality of storage device controllers (60 min ) are connected between the interface and respective ones of the plurality of storage devices (16) for interfacing with the plurality of storage devices (16) and operating them concurrently. The CPU (44) includes logic (48) for immediately acknowledging a write to an associated storage device (16) upon the data being placed in a buffer memory (64), for checking data in the buffer memory (64) and indicating it as having been read from an associated storage device (16) without an actual read thereof when a read request therefor is received from a user (10, 54) whereby the buffer memory (64) acts as a cache memory in such cases.
Patent KR-0148579-B1 (KR)
Inventor: TAKAHASHI YASUSHI
IPC: H01L21/60
Filed: 1990-02-26
Granted: 1998-12-01
Abstract: 내용 없음.
Patent KR-920009594-B1 (KR)
Inventor: IKEDA YOSHIO
IPC: D06F39/02
Filed: 1990-05-12
Granted: 1992-10-21
Abstract: 내용 없음.
Patent KR-950009959-B1 (KR)
Inventor: ARAI TATSUO
IPC: B23C5/24
Filed: 1990-05-21
Granted: 1995-09-04
Abstract: 내용 없음.
Patent KR-930009334-B1 (KR)
Inventor: ENDO TOSHIHIKO
IPC: F16C13/00
Filed: 1990-05-31
Granted: 1993-09-27
Abstract: 내용 없음.
Patent KR-940003964-B1 (KR)
Inventor: NIWA KOICHI
IPC: C07D251/34
Filed: 1990-06-29
Granted: 1994-05-09
Abstract: 내용 없음.
Patent KR-930003106-B1 (KR)
Title: 방향족 폴리아미드 펄프상 단섬유의 제조방법
Filed: 1990-07-26
Granted: 1993-04-19
Abstract: 내용 없음.
Patent KR-0161972-B1 (KR)
Inventor: HAVIV FORTUNA
IPC: A61K38/00
Filed: 1990-08-06
Granted: 1998-11-16
Abstract: 내용 없음.
Patent KR-100188076-B1 (KR)
Title: Method and apparatus for producing magnetically-coupled planar plasma
Inventor: OGLE JOHN SELDON
IPC: H01L21/31
Filed: 1990-08-14
Granted: 1999-06-01
Abstract: An apparatus for producing a planar plasma in a low pressure process gas includes a chamber (12) and an external planar coil (20). Radiofrequency resonant current is induced in the planar coil which in turn produces a planar magnetic field within the enclosure. The magnetic field causes circulating flux of electrons which in turn produces a planar region of ionic and radical species. The system may be used for plasma treatment of a variety of planar articles, typically semiconductor wafers which are oriented parallel to the plasma within the enclosure.
Patent KR-940008687-B1 (KR)
Inventor: USHIKI HIROSHI
IPC: G06F17/10
Filed: 1990-08-29
Granted: 1994-09-24
Abstract: 내용 없음.
Patent KR-940002759-B1 (KR)
Inventor: SATO KOJI
IPC: H01L21/60
Filed: 1990-10-13
Granted: 1994-04-02
Abstract: 내용 없음.