baber/WOPTO huggingface dataset:
Patent KR-870000919-B1 (KR)
Title: Method for manufacture of phthalic anhydride
Inventor: KANEYASU MASATAKA
IPC: B01J23/00
Filed: 1982-09-30
Granted: 1987-05-07
Abstract: Phthalic anhydride is prepd. by catalytic oxidn. of naphthalene or ortho-xylene. Naphthalene or ortho-xylene and oxygen gas are contacted with 1st(upper stream) and 2nd(down stream) catalyst bed. 1st catalyst bed comprises 67-90 wt.% of TiO2, 9-30 wt.% of V2O5 and 0.7-3 wt.% of Rb2SO4; 2nd one does 67-94 wt.% of TiO2, 5-30 wt.% of V2O5, 0.1-1 wt.% of Sn compds. (as SnO2) and 0.5-3 wt.% of P compds. (as P2O5). The catalysts are accompanied by nonporous inert carrier. Rxn. performed in 300-400≰C. The vol. ratio of 1st to 2nd catalyst is 100:30-300.
Patent KR-830002789-B1 (KR)
Title: The photograph typesetting machine
Inventor: HUSE SHIGERU
IPC: B41B21/16
Filed: 1982-10-08
Granted: 1983-12-16
Abstract: A photograph typesetting machine consists of a movable projector(19), which moves according to the magnification of the lens; buttons(28-31) for changing the lens type; a memory circuit(27) for storing the command signal from the buttons; ALUs(23,26) for determining the lens type with the command signal and calculating the moving quantity of the projector, which is the half value of the corresponding magnification of the selected lens type; and a control circuit(24) for adjusting the relative position between the film and the projector with the calculated value from the ALUs.
Patent KR-900008663-B1 (KR)
Inventor: ANSTAD OLLA Z
IPC: G21C15/18
Filed: 1982-11-04
Granted: 1990-11-26
Abstract: 내용 없음.
Patent KR-860001526-B1 (KR)
Title: Polyester yarn and its melt-spinning process
Inventor: MIRHEJ MICHAEL E
IPC: D01D5/08
Filed: 1983-02-11
Granted: 1986-10-02
Abstract: A terephthalate polyester yarn is claimed which contains at least two different types of filament. Filament A comprises a copolymer(I) of polyethylene terephthalate units and 2 mol.% ethylene 5-(sodium- sulfo) isophthalate units and has no more than 1 axis of planar symmetry, a non-uniform orientation profile across its cross section and a tenacity of 0.8-2.0 g/denier. Filament B comprises (I) or a homopolymer of poly(ethylene terephthalate) and has many axes of planar symmetry, a tenacity of 1.6 - 3.6 g/denier which is 30-200 % higher than filament A and an elongation at a break of at least 30% higher than filament A.
Patent KR-870000250-B1 (KR)
Title: Unit type curtain wall
Inventor: GARTNER KARL
IPC: F24F1/00
Filed: 1983-08-08
Granted: 1987-02-21
Abstract: The standardized curtain wall unit is for use with other similar units to provide a curtain wall assembly capable of room temp. control. The curtain wall unit comprises a number of frame members(14,16,18,20) joined into a rectangular shape, defining openings which are closed by double glazing panes. All the frame members are of identical cross-sectional shape, with a passageway (48) for a heat transfer fluid and a mounting recess (50) formed longitudinally through each in side-by-side relation to each other. The passageway is disposed inwardly of recess and is open outwardly.
Patent KR-910009350-B1 (KR)
Inventor: DAKEMODO DADASHI
IPC: C07D307/66
Filed: 1984-03-24
Granted: 1991-11-12
Abstract: 내용 없음.
Patent KR-860001348-B1 (KR)
Title: Method for manufacturing pikled radich product
Inventor: KIM CHONG-KIL
IPC: A23L19/00
Filed: 1984-07-09
Granted: 1986-09-16
Abstract: Pickled radish contg. a flavor of sea tangle was prepd. by immersing it in sea tangle exts.-containing seasoning soln. Thus, 200g sea tangle were immersed in 10 Kg water at 10-15≰C for 18h., heated at 60≰C for 30 min. to extract aroma component, and later reheated at 100≰C for 30 min. to give sea tangle exts. Radish was cured in NaCl soln. for 2-3month and desalted. The desalted radish was immersed in seasoning soln. of 33% sea tangle exts., 0.07% saccharin, 0.09% seasons, 0.04% citric acid, and 0.8% vinegar for 7 days to give pickled radish.
Patent KR-920002186-B1 (KR)
Inventor: GAMBERINI ERNESTO
IPC: A61J3/07
Filed: 1984-09-29
Granted: 1992-03-19
Abstract: 내용 없음.
Patent KR-870001253-B1 (KR)
Title: Method and apparatus for inserting water-resistant tape in the seam of tent fabrics and feeding waterproof liquid
Inventor: LEE YUN-JAE
IPC: D05B1/26
Filed: 1985-01-10
Granted: 1987-06-29
Abstract: This invention relates to a method and apparatus for inserting water- proof tape in the seam of tent fabrics.  A tape for water-proof is continuously passed through water-proof liquid so that the tape is homogeneously coated with the water-proof liquid. This tape is inserted in the seam tent fabrics by a wrapper.  The water-proofed part is stable, and this process reduces manpower and time in water- proof processing.
Patent KR-920006266-B1 (KR)
Inventor: GIMURA YUKIO
IPC: H02B13/02
Filed: 1985-03-08
Granted: 1992-08-01
Abstract: 내용 없음.
Patent KR-890001993-B1 (KR)
Title: Machine for roll winding apparatus
Inventor: MULFARTH WERNER
IPC: B65H19/28
Filed: 1985-06-21
Granted: 1989-06-07
Abstract: The machine for winding webs of paper onto a roll (1) has a frame with several work stations, and a turret (20) carrying winding shafts (21-24).  One of the stations is a winding and cutting station and includes a contact roller (16) which extends parallel to the winding shaft at the station with a mounting for the contact roller enabling movement of the contact roller radially with respect to the roll being formed and also radially with respect to the turret to enable clearing the path of the next presented shaft and core.  This movement in two different directions is accomplished by a double lever arrangement which is controlled by a cam plate which is rotated in direct relationship to the rotation of the turret.
Patent KR-910004939-B1 (KR)
Inventor: GARTSIDE ROBERT J
IPC: C10G9/00
Filed: 1985-08-27
Granted: 1991-07-18
Abstract: 내용 없음.
Patent KR-910000306-B1 (KR)
Title: High speed picture image condencer system using slow speed dynamic ram
Inventor: NAM BYUNG-DEO
IPC: H04N5/907
Filed: 1985-09-25
Granted: 1991-01-24
Abstract: The  system  for  sampling  the  analog  image  data  signals inputted   at   high   speed   to    store     them     in     the DRAMs(61,62...)(71,72....), includes an A/D converter (2) a system control  section  (3),  RAM  controllers  (4,5)  for  transmitting address signals to the RAMs, a multiplexer (8) and a D/A converter (9). The control section (3) includes  a  syn  separator  (31),  a clock generator (32), F/Fs(F1-F9), counters  (CO1-CO2),  monomulti (MM1-MM4), and gates (OR1,OR2,ND1-ND10,AD1-AD7,  IV1-  IV7,  EOR). The image data to be displayed are provided to a monitor (11).
Patent KR-940006737-B1 (KR)
Inventor: FERRE ALAIN
IPC: H04N7/30
Filed: 1985-12-17
Granted: 1994-07-27
Abstract: 내용 없음.
Patent KR-890005249-B1 (KR)
Inventor: YAMAYA DAZEUO
IPC: A23L7/109
Filed: 1986-01-24
Granted: 1989-12-20
Abstract: 내용 없음.
Patent KR-900003738-B1 (KR)
Title: Flexible fastener elements and method of securing them to a traveling web
Inventor: WAGNERS KEVIN J
IPC: B29C48/30
Filed: 1986-07-09
Granted: 1990-05-30
Abstract: A method for forming a ribbed plastic fastener element secured to an underlying film web for a reclosable plastic container comprises the steps of melt processing a thermoplastic resin to form molten plastic resin and extruding the molten plastic resin from a die to form a male profile having a base protion (52') connected to a generally arrowhead-shaped tip (50) by a stem (54) and guiding the male profile into convergence with a travelling film web and joining the male profile to the film web together to secure the profile to the film web, characterised by, extruding the male profile from the die in a form having a generally concave base portion.
Patent KR-940008168-B1 (KR)
Inventor: TERAUCHI KIYOSHI
IPC: F04B25/04
Filed: 1986-10-11
Granted: 1994-09-07
Abstract: 내용 없음.
Patent KR-900001962-B1 (KR)
Title: Control devices of display of elevator
Inventor: TSUZI SINDARO
IPC: G06F3/14
Filed: 1986-10-25
Granted: 1990-03-27
Abstract: The control appts. comprises a clock which delivers time information, a memory to previously store a number of items of display information determined according to times, a selector to select the display information corresponding to the time information of the clock from the memory.  A synthesis circuit is included to combine the general information with the display information selected by the selector and to deliver the combined information as synthetic display information for the display unit.
Patent KR-940004065-B1 (KR)
Title: Very pure acarbose
Inventor: RAUENBUSCH ERICH
IPC: C07H15/203
Filed: 1986-12-12
Granted: 1994-05-11
Abstract: Acarbose containing, apart from water, less than 10% by weight of sugar-like subsidiary components is prepared as described and used for preparing medicaments.
Patent KR-900006122-B1 (KR)
Title: Aluminum nitride sintered body and manufacture thereof
Inventor: SATTO HIDEKI
IPC: C04B41/51
Filed: 1987-02-20
Granted: 1990-08-24
Abstract: Al nitride sintered body for use as semiconductor substrate comprises an insulating layer formed by sintering an Al nitride body, with at least one element selected from the gp. of alkaline earth and rare earth gp. elements as sintering aids, on which is a metallised layer. The metallised layer consists of a conductive element, pref. at least one element selected from the gp. W, Mo, TiN, and ZrN, and at least one component element selected from gp. (IIa), (IIIa), (IVa) (IIIb) or lanthanide actinide gp. elements. Pref. the component element is any one of a mixt. and a cpd. of alumina and at least one of the rare earth elements and alkaline earth elements.
Patent KR-890003090-B1 (KR)
Title: Method for and apparatus for making instant rice-tea
Inventor: KIM SANG-BONG
IPC: A23L1/00
Filed: 1987-04-03
Granted: 1989-08-22
Abstract: The method for making an instant rice tea includes a boiling process in which the grain mixture of rice, barley and beans is presoaked for 1-2 hrs. and then boiled by a rice cooker (2), a scorching process in which the boiled grains are scorched by lowering and embedding a scorching member (1) having several heaters (11) and then a scraping member (14) detaches the scorched grains from the surface of the heaters, a drying process in which the scorched grains are dehydrated by a 1st. dryer (4) and a 2nd. dryer (8), and a milling process in which the dried grains are crushed and milled into the powder of 10- 200 mesh.
Patent KR-930006251-B1 (KR)
Title: Process for preparing partial polyol fatty acid esters
Inventor: PLANK PLEUN VAN DER
IPC: C11C3/10
Filed: 1987-07-23
Granted: 1993-07-09
Abstract: A process for preparing polyol fatty acid polyesters, e.g. sucrose polyesters (SPE) is improved by   (1) mixing the polyol with an alkaline catalyst such as KOH, NaOH or their carbonates, preferably in aqueous solution or dissolved in C1-5 alcohols or ketones at atmospheric pressure and 10-80 DEG C, (2) preparing a mixture of fatty acid lower alkyl esters with an emulsifier, preferably a fatty acid soap, and (3) adding the alkaline polyol solution to the mixture of (2), whereby preferably the solvent is removed during the addition of (1) to (2), e.g. at 60 DEG C and 5 mbar.   The ratio fatty acid lower alkyl esters : polyol is preferably (10-20):1. The reaction is improved so that SPE are formed at 110-145 DEG C within 5-10 hours.
Patent KR-940010967-B1 (KR)
Inventor: SOSA JOSE M
IPC: C08F279/00
Filed: 1987-07-24
Granted: 1994-11-21
Abstract: 내용 없음.
Patent KR-900005036-B1 (KR)
Title: Led array driving device and method of led printer head
Inventor: OH YOUNG-NAM
IPC: G06K15/12
Filed: 1987-10-02
Granted: 1990-07-18
Abstract: storing n data to be printed on the first buffer (10); storing the first buffer's output on the second buffer (20) as the predetermined block unit; outputting the block unit of printing data of the previous state at a predetermined number of times during inputting the n printing data of the present state; and correcting the radiation intensity by light emittingtime data according to the predetermined bits of correction data.
Patent KR-960010701-B1 (KR)
Inventor: KING PETER P
IPC: G21C3/34
Filed: 1987-10-28
Granted: 1996-08-07
Abstract: 내용 없음.
Patent KR-900003467-B1 (KR)
Inventor: GANSOW MICHAEL A P
IPC: C08G101/00
Filed: 1986-07-02
Granted: 1990-05-19
Abstract: 내용 없음.
Patent KR-950009313-B1 (KR)
Inventor: RICH JONATHAN DAVID
IPC: C07F7/12
Filed: 1988-04-02
Granted: 1995-08-19
Abstract: 내용 없음.
Patent KR-900005974-B1 (KR)
Title: Light weight-aggregate material and method of production thereof
Inventor: HAN GAB-SU
IPC: C04B20/06
Filed: 1988-05-31
Granted: 1990-08-18
Abstract: The light-weight aggregate is manufactured by the stages of: mixing the clay containing 64.0-72.96 wt.% SiO2 with 15.0-16.95 wt.% Al2O3, 5-7.5 wt.% Fe2O3, 0.4-0.59 wt.% CaO, 0.41 wt.% MgO, 6.78 wt.% Igloss, 1.5 wt.% crude oil; heating at 1150-1200 deg. C for two minutes in furnace; cooling at 800-900 deg.C and sintering at 1150-1200 deg.C for 3-5 minutes. The aggregate has the porous inner part and surface layer of Fe2O3. The product has compressive strength of more than 45 kg/cm2, thermal conductivity of no more than 0.06, acoustic absorptivity of no more than 0.7 dB, specific gravity of 0.24-0.4 and waterproofing and vibration-resistance.
Patent KR-930002496-B1 (KR)
Title: Calibration of fluid delivery equipment
Inventor: GILL DAVID C
IPC: G01F25/00
Filed: 1988-06-29
Granted: 1993-04-02
Abstract: The flow rate of a fluid, such as a herbicide, from delivery equipment is established by causing the fluid to flow into a calibration vessel (14), and measuring the volume which flows in a predetermined time. The vessel (14) is connected to a delivery head (8) of the equipment by an intermediate component (16). A tube (116) provides a passage for venting air from the vessel (14) as fluid flows into it. After a calibration measurement, the fluid can be returned to the equipment by inverting the equipment. The outgoing fluid is then replaced by air flowing back through the tube (116).
Patent KR-900005774-B1 (KR)
Title: Process for the preparation of hyaluronic acid by controlled phosphate salts
Inventor: KIM TAE-JIN
IPC: C12P19/04
Filed: 1988-07-01
Granted: 1990-08-11
Abstract: A process for increasing production of hyaluronic acid(HA) by fermentation comprises cultivating microoganism e.g. streptococcus ique ATCC 9528 capable of HA production in the 100ml of medium contg. 0.1-0.5g of phosphate salts at 37 deg.C, and then cultivating the microorgaism by intensifying the phosphate concentration. HA is useful as a protection agent.
Patent KR-910006765-B1 (KR)
Inventor: CORNELL ROBERT J
IPC: C08K3/18
Filed: 1988-10-12
Granted: 1991-09-02
Abstract: 내용 없음.
Patent KR-920006007-B1 (KR)
Inventor: OHISHI KOOJI
IPC: C08G63/60
Filed: 1988-11-11
Granted: 1992-07-25
Abstract: 내용 없음.
Patent KR-930003241-B1 (KR)
Inventor: OKURI YASUHIRO
IPC: C08G59/12
Filed: 1988-11-30
Granted: 1993-04-24
Abstract: 내용 없음.
Patent KR-0125931-B1 (KR)
Title: Composition for treatment of ischemic disorder in organs
Inventor: SHIMAMOTO NORIO
IPC: A61K31/665
Filed: 1989-01-11
Granted: 1997-12-26
Abstract: The present invention relates to a pharmaceutical composition for the prophylaxis and treatment of ischemic disorder in mammalian organs which contains, as an ingredient, a compound of the formula: <CHEM> wherein R1, R2 and R3 are independently the methyl group or a hydrogen atom, or a salt thereof.
Patent KR-970008767-B1 (KR)
Inventor: ISHIBASHI KOICHIRO
IPC: H03K17/16
Filed: 1989-03-22
Granted: 1997-05-28
Abstract: 없음
Patent KR-920005561-B1 (KR)
Inventor: ARAHIRA MASATO
IPC: A01N43/653
Filed: 1989-05-10
Granted: 1992-07-09
Abstract: 내용 없음.
Patent KR-910010139-B1 (KR)
Title: Process making and food of jelly state
Inventor: SAITO SADOSHI
IPC: A23L21/12
Filed: 1989-07-26
Granted: 1991-12-17
Abstract: A jellied food is manufactured by the manner that a jelly-like substance mixed and heat agitated in the liquid state is first filled in the container and a cream- or jam-like substance separately prepared and solidified in a predetermined shape is then incorporated into the jelly-like substance in the container at a temperature range at which the jelly-like substance is not solidified, and in the range below a melting point of the gelling agent contained in the jelly-like substance. The cream- or jam-like substance includes a gelling agent having a melting point lower than that of the gelling agent of the jelly-like substance. The container is then heat sterilized at a temperature of the melting point of the gelling agent of the jelly-like substance with the cream- or jam-like substance preserving the shape and quality at the time when it was contained in the container. The cream- or jam-like substance is also prepared by diluting the same with an amylopectin and water in a paste substance. The thus prepared substance is frozen, and the frozen paste substance is incorporated into the jelly-like substance separately prepared and contained in the container before the jelly-like substance is not solidified. The parts of the jelly-like substance surrounding the frozen substance are instantaneously solidified to form a thin film therearound. The container is then sealed and heat sterilized, whereby a jellied food with the cream- or jam-like substance preserving the shape and quality at the time when it was contained in the container, can be obtained.
Patent KR-920008979-B1 (KR)
Inventor: ENDOO NORIO
IPC: H03M11/00
Filed: 1989-09-11
Granted: 1992-10-12
Abstract: 내용 없음.
Patent KR-930008747-B1 (KR)
Inventor: HOENIK HELMUT
IPC: C09D17/00
Filed: 1989-09-20
Granted: 1993-09-13
Abstract: 내용 없음.
Patent KR-0145711-B1 (KR)
Inventor: GADDIS JOSEPH LEO
IPC: B01D39/20
Filed: 1989-09-27
Granted: 1998-08-17
Abstract: 내용없음
Patent KR-0133667-B1 (KR)
Inventor: VINK NICOLAAS GERRIT
IPC: H01J29/76
Filed: 1989-10-04
Granted: 1998-04-22
Abstract: 내용없음.
Patent KR-970007981-B1 (KR)
Inventor: SHIBUYA SHIGEKAZU
IPC: H05K9/00
Filed: 1989-10-27
Granted: 1997-05-19
Abstract: 요약없음
Patent KR-930002539-B1 (KR)
Inventor: USUI MASAYOSHI
IPC: F16L37/091
Filed: 1989-11-21
Granted: 1993-04-03
Abstract: 내용 없음.
Patent KR-0134963-B1 (KR)
Inventor: MAKOTO YAMAGISHI
IPC: H04R1/10
Filed: 1989-12-08
Granted: 1998-04-27
Abstract: 내용 없음.
Patent KR-0128685-B1 (KR)
Inventor: NAKKAJIMA KEUKICHI
IPC: A63F7/02
Filed: 1989-12-27
Granted: 1998-04-10
Abstract: 내용 없음
Patent KR-0157627-B1 (KR)
Title: Lubricants for refrigeration compressors
Inventor: MCGRAW PHILIP W
IPC: C10M111/04
Filed: 1990-01-09
Granted: 1999-02-18
Abstract: Lubricant base compositions for compression refrigeration are composed of 95 to 5 percent by weight of polyether polyols having a number average molecular weight of from 400 to 5000 and from 5 to 95 percent of esters made from polyhydric alcohols with alkanoic acids or esters made from alkanedioic acids with alkanols. A refrigeration fluid is made from the base composition with the addition of selected hydrochlorofluorocarbons and hydrofluorocarbons so that the base composition is miscible with the refrigerant in the range of from -20 DEG C to greater than 65 DEG C.
Patent KR-920005934-B1 (KR)
Inventor: FUJIMOTO HIROAKI
IPC: H05K13/04
Filed: 1990-03-28
Granted: 1992-07-24
Abstract: 내용 없음.
Patent KR-920009388-B1 (KR)
Title: Communication adapter for personal computer
Inventor: HAN JIN-SU
IPC: H04L12/12
Filed: 1990-05-16
Granted: 1992-10-15
Abstract: The   PC   communication   adaptor   adopts   open   system interconnection protocol to communicate  between  different  typed personal computers through  PSTN.  The  adaptor  includes  a  LAPB controller  (200)  for   controlling   data   transmission,   data reconstruction, a DMA timing controller (300) for handling  timing problem caused by different DMA structure of a main controller and the LAPB controller, a reset and battery back-up  unit  (400)  for generating reset signal according to source voltage  variation,  a RTC  nd  alarm  interrupt  generator  (500)  for  generating  time information and for generating alarm pulse at designated  time,  a MODEM (600) for communicating data with 1200 bps or  2400  bps,  a PPI unit (700) for controlling input and output of control signals for peripheral equipments,  and  a  network  connector  (900)  for connecting modem to public network.
Patent KR-0140393-B1 (KR)
Inventor: SUGA YOSHINORI
IPC: C08F4/656
Filed: 1990-05-17
Granted: 1998-07-01
Abstract: 내용없음
Patent KR-960011377-B1 (KR)
Title: Imidazole derivatives and antiulcer agents containing the same
Inventor: OKABE SUSUMU
IPC: F16C33/78
Filed: 1990-08-10
Granted: 1996-08-22
Abstract: Disclosed are novel imidazole derivatives having the formula: <CHEM> wherein R<1> is hydrogen or an alkyl group having 1-6 carbon atoms, R<2> is an alkyl group having 2-6 carbon atoms substituted with an alkoxy group having 1-4 carbon atoms, each of R<3>, R<4>, R<5> and R<6> independently is hydrogen, a halogen, an alkyl group having 1-6 carbon atoms, an alkoxy group having 1-6 carbon atoms, a fluorine-substituted alkyl group having 1-6 carbon atoms, or a fluorine-substituted alkoxy group having 1-6 carbon atoms. The new imidazole derivatives are effective particularly as anti-ulcer agents.
Patent KR-0158682-B1 (KR)
Inventor: NARUI HIRONOBU
IPC: H01S5/00
Filed: 1990-08-14
Granted: 1999-02-01
Abstract: 내용없음.
Patent KR-930010013-B1 (KR)
Inventor: OYA SHUICHI
IPC: H01L27/10
Filed: 1990-08-23
Granted: 1993-10-14
Abstract: 내용 없음.
Patent KR-930002911-B1 (KR)
Inventor: ANDO TATEO
IPC: H05K13/04
Filed: 1990-09-12
Granted: 1993-04-15
Abstract: 내용 없음.
Patent KR-940011436-B1 (KR)
Inventor: HASE KENICHI
IPC: H04L7/033
Filed: 1990-10-30
Granted: 1994-12-15
Abstract: 내용 없음.
Patent KR-930005231-B1 (KR)
Title: Pin out apparatus of ic tube
Inventor: LEE WON-HO
IPC: H01L21/48
Filed: 1990-11-01
Granted: 1993-06-16
Abstract: The device includes an inlet and outlet means for IC tube,  a means for correcting the pin position, a means for gripping the IC tube at the internal middle parts of housing (100), an  extracting means with a supporting plate which has the same level to  the  IC tube, IC guide rail means mounted  at  the  opposite-side  housing (100) of the inlet and outlet means. The inlet  and  outlet  means has an injecting hole for IC tube (12) inserted with a pin  (113). The device comprises a guide block (110) fixed at housing (100), a roller part (120) positioned in the housing (100), a stopping part (140) for IC tube. The roller part (120) comprises an upper  (120) and  lower roller  (125)  which  is  integrally  connected   with eccentric shaft (123) of an upper and lower motors (121,122).
Patent KR-930009216-B1 (KR)
Title: Adhesive compositions
Inventor: KO SUNG-HYON
IPC: C09J167/00
Filed: 1990-11-19
Granted: 1993-09-24
Abstract: This is a new adhesive  composition  for  textile,  plastics, rubber, paper, wood, et al,  especially  for  adhesion  ones  with different surface property. The adhesive composition  is  composed of adhesive resins of high melting pt.  and  of  low  melting  pt. Pref. the adhesive resin  of  high  melting  pt.  is  polyethylene terephthalate copolymer and its crystal  melting  pt.  is  130-200 deg.C ; and the low one is poly  butylene  terephthalate  and  its melting pt. 50-120 deg.C. Mixing ratio of high and low one lies on 95:5-20:80. Pref. the adhesive resin includes  terephthalic  acid, isophthalic acid or their  low  alkyl  ester  as  acid  component; C6-C12 fatty acid dicarboxylate or its low alkyl ester;  above  50 wt.%  1,4-butanediol  as  glycol  comp.;  and  selected  one  from ethylene glycol, 1,2- or 1,3-propylene glycol, 1,6-hexanediol, and n- pentyl glycol.
Patent KR-930009551-B1 (KR)
Title: Passivation film forming method of hetero junction transistor
Inventor: LEE JONG-RAM
IPC: H01L21/331
Filed: 1990-12-26
Granted: 1993-10-06
Abstract: A passivation layer of hetero-barrier transistor for reducing surface leak current of a semiconductor device, is prepared by (1) forming  a  sulfur  passivation  layer   with   ammonium   sulfide ?(NH4)2Sx(x=0.2-2.0)? on the barrier  transistor,  (2)  forming  a aluminum arsenide layer(9)  and  an  insulation  gallium  arsenide layer(10) on the passivation layer by MBE (molecular beam epitaxy) under room temperature and low temperature. It is  also  used  for passivation layer of MESFET, HEMF and laser diode.