baber/WOPTO huggingface dataset:
Patent JP-H0593066-A (JP)
Title: Production of polyimide and production of electronic device using the same polyimide
Inventor: OKABE YOSHIAKI
IPC: C08G73/10
Filed: 1991-10-02
Abstract: PURPOSE:To obtain a polyimide suitable as an insulating layer for a thin film magnetic head, multichip module, etc., by reacting tetracarboxylic acid dianhydrides with a hydroxyl group-containing compound to give a diester compound and reacting the diester compound with an amine in a solvent. CONSTITUTION:(A) Tetracarboxylic acid dianhydrides are made to react with (B) a compound having an alcoholic or phenolic OH group and being 4-12 in dissociation constant (pKa) to synthesize (C) a diester compound of formula I (R<1> is quadrivalent organic group; R<2> and R<3> are monovalent organic groups) and the resultant diester compound (C) is subjected to elimination reaction of R<2>OH and R<3>OH with (D) a diamine of formula II (R<4> is divalent organic group having an electron attracting group) in a solvent capable of dissolving these both compounds to provide a polyamic acid varnish. The varnish is subjected to condensation reaction to provide the objective polyamide.
Patent JP-H02101702-A (JP)
Title: Lightning arrester
Inventor: ISOBE SHINJI
IPC: H01C7/12
Filed: 1988-10-11
Abstract: PURPOSE:To increase heat dissipation effect of a nonlinear resistor element and to improve a pressure release function by providing a projection inside an insulator container, and supporting the nonlinear resistor element not through an insulator pipe. CONSTITUTION:For example, three projections are provided inside an insulating vessel 1b, and nonlinear resistor elements 2 which are stacked are held not to be deviated sidewards by these projections 10. Also, they the force-set and fixed between opposed pressure release films 6a and 6b through supporting members 20a and 20b by a coil spring 4. The pressure release films 6a and 6b have function of releasing high pressure gas in the inside to the outside by bursting at the time of internal pressure rise which arises by arc discharge, etc., at abnormality by thunder stroke, etc., and preventing scattering of insulating vessel, etc. For this reason, some parts of the pressure release films 6a and 6b are formed thin. At the time of pressure release in this internal pressure rise, high pressure gas passage a pressure release path 7 and hits against covers 8a and 8b positioned at both ends of the lightning arrester, and is released from several pressure release ports 9a and 9b.
Patent JP-H1196921-A (JP)
Title: Plasma display panel
Inventor: TOMIOKA TETSUYOSHI
IPC: H01J11/42
Filed: 1997-09-19
Abstract: PROBLEM TO BE SOLVED: To uniformly distribute the discharge probability for the entire interior of a discharge cell, by forming the width of a discharge slit between a pair of electrodes located within the discharge cell is formed widely at the central part of the discharge cell, and narrowly in the vicinity of its partition wall. SOLUTION: The width of a discharge slit between a pair of sustained electrodes X, Y located within a discharge cell H is formed so as to be wide as the discharge slit width S2 at the center of the discharge cell H, and so as to be almost elliptically and gradually narrower as it approaches from the center to the periphery, that is, as it approaches a partition wall 29, and eventually becoming equal to the discharge slit width S1. Potential difference is impressed between the electrode Y and an address electrode among a pair of sustained lectrodes X, Y, and an address discharge is generated for forming charges, further the charges are reversed between both electrodes to generate a main discharge.  By forming the sustained electrodes X, Y in this way, it is possible to uniformly distribute the discharge probability within the discharge cell, and prevent the deterioration of the protective film of the central part of the discharge cell earlier than the peripheral part.
Patent JP-H0794863-A (JP)
Title: Method for flattening ceramic substrate surface
Inventor: NISHIZAWA MOTOTOSHI
IPC: H05K1/03
Filed: 1993-09-20
Abstract: PURPOSE:To form a thin rigid flat layer, and obtain a flat ceramic substrate having high thermal conductivity, by forming an inorganic polymer film on the surface of a ceramic substrate. CONSTITUTION:On the surface of an aluminum nitride substrate whose surface is polished, inorganic polymer material expressed by formula K (R: 1-3C alkyl group, phenyl group) is dripped and spin-coated at 3000rpm for 15 seconds. By baking the substrate in atmosphere at 700 deg.C for l hour after drying in atmosphere at 150 deg.C for 15 minutes, a thin film of about 5000Angstrom  in thickness which has composition expressed by formula I is formed. The surface of the aluminum nitride substrate is flattened. Thereby a conductor film, an insulating film, etc., which constitute multilayered wiring structure can be formed with excellent continuity, and the ceramic substrate can be used in a wide range.
Patent JP-2000089140-A (JP)
Title: Manufacture of optical fiber arraying member, arraying method of optical fiber, and optical switch
Inventor: KOUDA HIROSHI
IPC: G02B26/08
Filed: 1998-09-09
Abstract: PROBLEM TO BE SOLVED: To provide an optical switch making a mechanism simple for selecting operation. SOLUTION: An optical fiber arraying member 1 is constituted as a circular flat plate, and radially arranged V-grooves passing through the center are formed as optical fiber fixing grooves 1a. Arraying fiber 2 are fixedly arranged in the optical fiber fixing grooves 1a so that the optical fiber end faces 2a are faced outside, and pressed with a fixing member 3. A movable fiber 4 can be moved by an unshown transfer device. To selectively connect the movable fiber 4 to the arraying fiber 2, the optical fiber arraying member 1 is turned to a desired rotary position, and the movable fiber is vertically moved to be positioned in the V-groove to bring both fiber into contact.
Patent JP-H1191128-A (JP)
Title: Ink jet printer
Inventor: ITO TAKURO
IPC: B41J2/175
Filed: 1997-09-19
Abstract: PROBLEM TO BE SOLVED: To perform maintenance smoothly and surely while preventing waste of ink. SOLUTION: A print head 20 (20C-20B) is coupled with an ink tank 40 through an ink supply tube 31 and an ink return tube 33 so that ink can be fed from the ink tank 40 to the print head 20 (20C-20B) by driving a feed pump 32 coupled with the ink supply tube 31 and ink can be returned from the print head 20 (20C-20B) back to the ink tank 40 by driving a return pump 34 coupled with the ink return tube 33. The ink supply tube 31 is provided with an impact purge means 50 for impact supplying ink to the print head 20 (20C-20B) on the downstream side of the feed pump 32. A conduction tube 70 conducts the ink supply tube 31 on the downstream side of the feed pump 32 with the ink return tube 33 on the upstream side of the return pump 34.
Patent JP-H04134663-A (JP)
Title: Cassette loading device
Inventor: YOSHII TETSUJI
IPC: G11B15/675
Filed: 1990-09-25
Abstract: PURPOSE:To prevent a cassette transfer member from floating or coming off from a guide groove by providing a first engaging lug and a second engaging lug on the cassette transfer member as well as providing a twisting spring. CONSTITUTION:A first cassette engaging lug 3 and a second cassette engaging lug 27 are provided in a cassette transfer member 2 corresponding to the first opening 222 and the second opening 23 of a tape cassette respectively. Thus, it is possible to prevent the lug 3 from engaging with the second opening 23, and when engaging with the opening 23, it becomes impossible to insert any more by hand as well, so a feeling at the insertion can be improved. And since a twisting spring 22 is attached to a connection pin 4 and a bend is provided at the one end so as not to come off from a guide groove 14, the member preventing the cassette transfer member 2 from floating or coming off from the guide groove is unnecessiated, and it is possible to attach and detach easily when assembling and disassembling, so the assembling workability can be improved.
Patent JP-S62260917-A (JP)
Title: Fixer for guider of pile
Inventor: SAKAI DENSUKE
IPC: E02D7/16
Filed: 1986-10-29
Abstract: PURPOSE:To quickly perform operations by a method in which a working floor is formed to an existing pile, the fixation of the base of a pile guider to beams is released by operating nuts, the guider is moved, and the base is fixed to another beam and another pile is driven. CONSTITUTION:After the ending of previous operation, nuts 12 are operated to release the fixation of a base 4 to beams 2 by a fixer C. A guide B is hung down from a crane, the base 4 is moved under guidance of the beams 2, and the guider B is advanced and installed on the beams 2. The nuts 12 are operated, and the base 4 is fixed to the beams 3 by matching the center lines of the recessions 9a and 9b of guide base 8a and 8b. Another pile 1'is erected in the recessions 9a and 9b, lowered, and driven. The guide bases 8a and 8b are folded down to release guidance to the pile 1', and the nuts 12 are operated to release the fixation of the base 4 to the beams 2. The guider B is advanced and installed, and the same operations are repeated for driving the piles.
Patent JP-H04133458-A (JP)
Title: Multilayer lead frame for semiconductor element use
Inventor: KATO TSUNENORI
IPC: H01L23/50
Filed: 1990-09-26
Abstract: PURPOSE:To use a normal multipin lead frame, to eliminate the generation of a crack in a package, which is caused by the warpage of the lead frame, and to obtain the lead frame, which is little subjected to contamination due to out-gassing, by a method wherein the plane part of each conductive plate is laterally crossed over an insulating layer laminated on the lead frame and the terminal parts of the conductive plate are connected and fixed to each inner lead. CONSTITUTION:In a multilayer lead frame with an insulating layer 4 and conductive plates 2, which are laminated on the lead frame 1 in the order of the layer 4 and the plates 2, each conductive plate 2 has a plane part 2a and a prescribed number of terminal parts 2a, which are made to project from the plane part 2a, the plane part 2a is laterally crossed over the layer 4 laminated on the lead frame 1 and at the same time, at least one of the terminal parts 2b is connected and fixed to one of inner leads 1a of the lead frame 1. For example, each tape 4 for taping use, which is constituted of a base material 4a and a bonding agent layer 4b, is previously adhered on each inner lead 1a of a lead frame 1 in a rectangular form and a prescribed number of power plates 2, which are independent from each other, are respectively provided on each inner lead 1a in such a way as to lie across on each tape 4 for taping use.
Patent JP-H02103726-A (JP)
Title: Production of perpendicular magnetic disk
Inventor: KANDA HIDEKAZU
IPC: G11B5/858
Filed: 1988-10-11
Abstract: PURPOSE:To improve durability of a perpendicular recording layer by disposing a lot of column-type protrusions to erect at specific intervals on a disk substrate by using harder material for the protrusions than the soft magnetic layer with high magnetic permeability afterward to be provided, forming the soft ferromagnetic layer with high magnetic permeability in a manner that the top ends of the protrusions remain as protrusions, and then forming the perpendicular recording layer and a protective film thereon. CONSTITUTION:A base film 12 is formed on the disk substrate 11 by plating, on which a lot of columnar protrusions 15 which are insulating and harder than the soft magnetic layer 16 are disposed at specific intervals. The soft magnetic layer 16 with high magnetic permeability is then formed by electroplasting on the base layer 12 in a manner that the top ends of the protrusions still remain as protrusions. Then, the perpendicular recording layer 17 is formed on the soft magnetic layer 16 including the protrusions 15. By this method, the soft magnetic layer which has high magnetic permeability but rather low mechanical strength is reinforced, so that the perpendicular recording layer 17 formed on the soft magnetic layer shows significantly improved impact strength against a magnetic head. Thus, a perpendicular magnetic disk with high durability can be easily obtained.
Patent JP-H02102548-A (JP)
Title: Thermal expansion adjusting material
Inventor: YAMAGUCHI KENJI
IPC: H01L21/52
Filed: 1988-10-12
Abstract: PURPOSE:To improve a solderability while the superior thermal expansion adaptability of an Nb layer with a ceramics layer is maintained intact by a method wherein a thermal expansion adjusting material is constituted in such a way that copper layers or copper alloy layers are respectively cladded on both surfaces of the Nb layer and the thickness ratio of the copper layer: the Nb layer: the copper layer is set at a specified range. CONSTITUTION:Copper plates or copper alloy plate 1b and 1b, whose thickness are almost equal, are respectively cladded on both surfaces of an Nb plate 1a and the plates 1a, 1b and 1b are constituted into a thermal expansion adjustable clad material (a thermal expansion adjusting material) 1. The plate thickness ratio of the copper plate: the Nb plate: the copper plate is set at a range between 1:500:1 (about 0.4% of the coating volume percentage of Cu) and 15:70:15. As this result, a layer, to which a silver solder layer 4 comes into contact, is not the Nb layer but is changed into the copper layer 1b and a difference between this silver soldering and a silver soldering with the copper layer itself is eliminated. Thereby, a significant improvement and a stabilization of a solderability can be accomplished without impairing the thermal expansion adaptability of the Nb layer with an Al2O3 ceramics layer 3.
Patent JP-H1190682-A (JP)
Title: Free shape brazing filler metal and its production
Inventor: SENDA ITARU
IPC: F02C7/00
Filed: 1997-09-22
Abstract: PROBLEM TO BE SOLVED: To provide a brazing filler metal having the shape equal to the shape of a member having an intricate shape and a process for producing the same. SOLUTION: This process for producing a free shape brazing filler metal consists in a first stage for forming a brazing filler metal layer 12 on the surface of a base material 11 having the shape equal to the shape of a joint part having a three-dimensional shape by a thermal spraying method and a second stage for detaching the brazing filler metal layer 12 from the base material 11 after the thermal spraying and easily forms the brazing filler metal layer having the shape equal to the shape of the surface of the base material having the intricate three-dimensional shape. The brazing filler metal layer of 10 to 300 μm in thickness having the shape equal to the joint shape having the three- dimensional shape is obtd. by the process for producing the free shape brazing filler metal. Then, the method is applicable into to a large-sized application to be exposed to high-temp. gas.
Patent JP-S63110564-A (JP)
Inventor: MORIHARA NOBUYUKI
IPC: H01R4/48
Filed: 1986-10-27
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H11157828-A (JP)
Title: Amorphous silica alumina and its production
Inventor: CHIN MATSU
IPC: C01B33/26
Filed: 1998-09-10
Abstract: PROBLEM TO BE SOLVED: To obtain an amorphous silica alumina having a specific surface area and large void volume by introducing an aluminum salt solution and a precipitant into a reactor housing water and adding a silicon compound into the silica gel obtain by the reaction to react. SOLUTION: A colloid sol is obtained by supplying the acidic or basic aluminum salt solution and the basic or acidic precipitant in parallel flow into the reactor housing the small quantity of a deionized water and carrying out neutralization reaction at pH 6.5-9.5 and 50-70 deg.C for 0.5-2 hr. After the colloid sol is stabilized at pH 8-9 for 0-60 min, the silicon compound is added within 5-10 min into the colloid sol, aged at 50-70 deg.C for 10-60 min and next, the resultant product is filtered, washed, dried and pulverized to obtain the amorphous silica alumina containing 10-50 wt.% silica and having 350-600 m<2> /g specific surface area, 0.8-1.5 ml/g void volume, 0.25-0.55 mmol/g pyridine adsorption (IR method) and 0.30-0.50 mmol/g acidity.
Patent JP-H01100898-A (JP)
Title: Manufacture of vacuum duct for particle accelerator
Inventor: SUZUKI KENICHI
IPC: H05H7/14
Filed: 1987-10-12
Abstract: PURPOSE:To make the temperature distribution in the axial direction uniform by applying a current to current application connecting seats furnished at the flanges of a vacuum duct main body to heat a cylinder positioned between the flanges, and baking-processing a protective layer arranged at the outer side of the cylinder. CONSTITUTION:A vacuum duct main body 1 furnishing flanges 2 with connecting seats for applying current at both ends is prepared. At the outer surface of a cylinder between the flanges 2 of the vacuum duct main body 1, a pretective layer 4 is formed by laminate-coating a ceramic material in a plusma spray coating. Then a current is applied to the current application connecting seats 10 through current application conductors 12, and the protective layer 4 furnished at the outer surface of the cylinder 3 is heated by utilizing the resistance heating. Since the heat emitted from the cylinder 3 is even in the axial direction, the temperature distribution at the interface between the duct main body 1 and the protective layer 4, and in the axial direction of the protective layer 4 can be made uniform.
Patent JP-H09181155-A (JP)
Title: Susceptor of depositing equipment
Inventor: ISURAERU BEINGURASU
IPC: C23C16/455
Filed: 1996-09-27
Abstract: PROBLEM TO BE SOLVED: To provide a susceptor of an equipment for depositing substance on the whole part of both surfaces of a wafer, with perfect coverage. SOLUTION: This susceptor 32 is used for an equipment for depositing a substance layer on the surface of a wafer 30, and is a plate having a surface. A plurality of retaining posts 36 are protruded from the surface 34 of the plate. A plurality of the retaining posts 36 are arranged having gaps conforming to a pattern wherein a distance can be ensured between the surface 34 of the plate and the wafer 30 when the wafer 30 is put on the retaining posts 36.
Patent JP-S62116135-A (JP)
Inventor: TAKAHASHI SHUICHI
IPC: B32B9/00
Filed: 1985-11-15
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-S61135880-A (JP)
Inventor: HASEGAWA AKIRA
IPC: B62K21/00
Filed: 1984-12-05
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H10102117-A (JP)
Title: Production of metallic iron and production equipment thereof
Inventor: NEGAMI TAKUYA
IPC: C21B13/00
Filed: 1996-09-27
Abstract: PROBLEM TO BE SOLVED: To provide a method, by which a metallic iron is obtained by heating and reducing iron oxide of iron ore, etc., together with carbonaceous reducing agent, the iron oxide is efficiently reduced to the metallic iron and also, slag component mixed in as gangue component, etc., in the iron oxide source of the iron ore, etc., is well melted and separated and the high purity metallic iron can efficiently be produced as molten iron, and an equipment thereof. SOLUTION: At the time of producing the metallic iron by heating and reducing a formed body of the iron oxide containing the carbonaceous reducing agent, the outer shell of the metallic iron is generated and grown by heating and reducing the formed body while dropping downward as granular formed body A, and the reduction is progressed until the iron oxide in the formed body does not substantially exist. Further, agglomerate of the produced slag in the formed body is formed, and after melting and dropping the outer shell of the metallic iron and the slag by further heating, this material is separated into the molten slag S and the molten iron Fe.
Patent JP-2000084372-A (JP)
Title: Membrane separation device
Inventor: MIYASHITA SATOSHI
IPC: B01D71/26
Filed: 1998-09-10
Abstract: PROBLEM TO BE SOLVED: To provide a membrane separation device that causes the clogging of membrane surface due to a suspending substance in liquid to be treated even in filtration over a long period. SOLUTION: This membrane separation device 20 is provided with a flat type membrane module 3 arranged so that the membrane surface of the separation membrane 13 is in the vertical direction, a diffusion device 4 provided below the separation membrane 13 to diffuse a gas and for cleaning the membrane surface of the separation membrane 13 by gas-liquid mixed flow generated by the gas, and shield walls 6a, 6b for introducing the gas diffused by the diffusion device 4 to the membrane surface of the separation membrane 13 and is mounted in a treating vessel.  The membrane module 3 is provided with a membrane fixing member 14 at both ends of the separation membrane 13 and the separation membrane 13 is positioned inside of a pair of the shield walls 6a, 6b arranged in parallel to the membrane surface of the separation membrane 13 in view from the upper side of the membrane separation device 20.
Patent JP-S63112316-A (JP)
Title: Transfer for brittle thin plate material
Inventor: MORIKAWA YASUSHI
IPC: H01L21/52
Filed: 1986-10-29
Abstract: PURPOSE:To prevent the formation of scratches and cracks on a brittle thin plate material by separating the brittle thin plate material such as ceramics from the pallets which are arranged and inserted, thus certainly transferring the material onto other pallet, etc. without generating damage on the surface of the material. CONSTITUTION:A resin 6 which is thermoset after printing is formed onto the surfaces of an arranging and inserting pallet 2 and a brittle thin plate material 1. After an elastic sheet 3 is superposed in this state, a receiving plate 4 is superposed further, and set onto a separating plate 5 having a projecting plate. When the receiving plate 4 and the separating plate 5 are closely attached, the material 1 can be separated without receiving damage on the surface, by the deflection of the elastic sheet 3 from over the pallet 2. After the reversal in this state, the pallet 2 is demounted, and a transport pallet is closely attached again, and the receiving plate 4 and the elastic sheet 3 are demounted, and the material 1 is arranged and transferred onto the transport pallet to be transferred. Therefore, the brittle thin plate material 1 can be transferred in the arranged state onto other transfer pallet without receiving damage on the surface part.
Patent JP-H08100367-A (JP)
Title: Production of metal-coated carbon fiber
Inventor: MOCHIZUKI KENICHI
IPC: D06M11/83
Filed: 1994-09-28
Abstract: PURPOSE: To provide a method for producing metal-coated carbon fiber, capable of coating a metal on the fiber in a large amount and in high adhesivity by opening and treating a carbon fiber bundle in an aqueous solution containing an allylamine polymer and an alkali metal salt, allowing the treated carbon fiber bundle to adsorb palladium colloid containing a water-soluble polymer and subsequently subjecting the carbon fiber bundle to an electroless plating treatment. CONSTITUTION: A carbon fiber bundle is opened and treated in an aqueous solution containing 0.001-0.5wt.% of an allylamine polymer having a mol.wt. of 2000-50000, such as polyallylamine, polydiallyamine, monoallylamine- diallylamine copolymer, polydimethyldiallylammonium chloride or a polyamine sulfone comprising the 1:1 molar copolymer of dimethyldiallylammonium chloride-sulfur dioxide, and 0.001-0.1wt.% of an alkali metal salt such as sodium chloride, sodium nitrate, potassium chloride or cesium nitrate. The treated carbon fiber bundle is immersed in a palladium colloid liquid containing a water-soluble polymer to adsorb the palladium colloid, and subsequently subjected to an electroless plating treatment to obtain the metal-coated carbon fiber excellent in conductivity.