baber/WOPTO huggingface dataset:
Patent JP-H07331023-A (JP)
Title: Thermoplastic resin composition
Inventor: NAKADA HIROMICHI
IPC: C08L69/00
Filed: 1994-05-31
Abstract: PURPOSE:To obtain a thermoplastic resin composition, comprising a polycarbonate-based resin and a specific modified block copolymer in a specified proportion, improved in impact resistance at low temperatures without causing the delamination and useful for electrical and electronic parts, etc. CONSTITUTION:This resin composition comprises (A) 95-30 pts.wt. polycarbonate- based resin and (B) 5-70 pts.wt. of (i) a modified block copolymer having hydroxyl groups at the terminals of a block copolymer containing one or more blocks A selected from a polymer block consisting essentially of an aromatic vinyl compound and a hydrogenated polybutadiene block obtained by hydrogenating a polybutadiene having <=20% content of 1,2-bonds and one or more blocks B such as a hydrogenated polyisoprene block or a hydrogenated polybutadiene block prepared by hydrogenating a polybutadiene having 30-70% content of the 1,2-bonds and/or (ii) a modified block copolymer having hydroxyl groups at the terminals of a block copolymer containing one or more polymer blocks C consisting essentially of the aromatic vinyl compound and one or more polyisobutylene blocks D.
Patent JP-H04343791-A (JP)
Title: Sizing agent for papermaking
Inventor: HATANAKA SHIGETO
IPC: D21H17/05
Filed: 1991-05-16
Abstract: PURPOSE:To obtain a sizing agent capable of exhibiting excellent sizing effects even under adverse conditions such as an increased temperature of water for forming sheets of paper, a small amount of added aluminum sulfate or a high pH. CONSTITUTION:A sizing agent for papermaking is obtained by subjecting all or part of an alkenylsuccinic anhydride and an organic carboxylic acid to dehydrating condensation with a polyalkylene polyamine and saponifying the resultant reaction product with an alkali. In detail, it is a water-soluble sizing agent obtained by blending the alkenylsuccinic anhydride with the organic carboxylic acid in a molar equiv. amount of 1-20 times based on the alkenylsuccinic anhydride, then adding and mixing the polyalkylene polyamine in a molar equiv. amount of 0.1-2.0 times based on the alkenylsuccinic anhydride, carrying out dehydrating condensation and saponifying the prepared reaction product with the alkali in an amount nearly corresponding to its saponification equiv.
Patent JP-S6059018-A (JP)
Title: Production of cu-added steel having excellent weldability and low-temperature toughness
Inventor: MURATA MASAHIKO
IPC: C21D8/02
Filed: 1983-08-03
Abstract: PURPOSE:To obtain a Cu-added steel having excellent strength, toughness and welding characteristic by heating a continuous casting billet contg. C, Si, Mn, Nb, Cu, Al and S respectively at prescribed ratios at a low temp. and rolling said steel under specific conditions then cooling the rolled steel and subjecting the same to a tempering treatment. CONSTITUTION:A continuous casting billet contg. 0.005-0.090% C, <=0.6% Si, 0.6-2.2% Mn, 0.005-0.08% Nb, 0.5-1.5% Cu, 0.005-0.08% Al and <=0.003% S and consisting of the balance Fe and unavoidable impurities is treated in the following way: The billet is heated to <=1,150 deg.C, more particularly to the Ac3 transformation point or above to fine the austenite grains in the stage of heating. The billet after the heating treatment is rolled at the cumulative draft at <=900 deg.C limited to >=60% and the finishing temp. limited to <=800 deg.C to improve considerably the strength and toughness of the steel sheet. The steel sheet after rolling is subjected to tempering at >=500 deg.C and the Ac1 point or below after said steel is allowed to cool or is forcibly cooled, by which the Cu-added steel having the intended excellent weldability and low-temp. toughness is obtd.
Patent JP-S6119753-A (JP)
Title: Aluminum alloy for die casting
Inventor: MORITA AKIYOSHI
IPC: C22C21/02
Filed: 1984-07-07
Abstract: PURPOSE:To provide an Al-alloy for die casting having no possibility generating a casting crack, by specifying the contents of Cu and Si in the Al-alloy and limiting two factors of Fe-content and (Fe+Mn+Ni)-content. CONSTITUTION:An Al-alloy for die casting contains 4% or less Cu and 12% or less Si and is prescribed in the contens of Fe, Mn and Ni so that Fe<=1.45% and 5XFe+3(Mn+Ni)<=8%. Even when Cr and Co are added, both of them are prescribed as the total content of Fe+Mn+Ni+Cr+Co. By this compositional range, an Al-alloy for die casting generating no casting crack can be provided at low cost.
Patent JP-H10335932-A (JP)
Title: Array antenna
Inventor: NISHIZAWA KAZUFUMI
IPC: H01Q21/06
Filed: 1997-05-30
Abstract: PROBLEM TO BE SOLVED: To obtain a multiple frequency shared array antenna which has desired radiation and directivity characteristics. SOLUTION: In an array antenna, a plurality of elemental antennas respectively used for a plurality of different frequency bands are arranged on the same opening and, when a plurality of elemental antennas 2 used for the higher one of combined two frequency bands selected from the different frequency bands is called first elemental antennas and those 1 used for the lower frequency band are called second elemental antennas. The partial radiation patterns of the first elemental antennas 2 are affected by the second elemental antennas 1 and change from their original patterns.  Therefore, the second elemental antennas 1 are shifted or thinned out or new antennas are added to the antennas 1, so that the arranging intervals of the first antennas 2, the radiation patterns of which change due to the influence of the second elemental antennas 1, become shorter than the wavelength of the higher frequency band in each direction (cut face).
Patent JP-H04342000-A (JP)
Title: Semiconductor memory device
Inventor: KADOTA JUNJI
IPC: G11C29/00
Filed: 1991-05-17
Abstract: PURPOSE:To prevent an abnormal leak current which flows through a defective bit line. CONSTITUTION:Gates of precharge transistors Q1 and Q2, which configure loading circuits of bit lines D and the inverse of D, and an equalizer transistor Q3 are connected to a ground level through a high resistance element R1 and furthermore, these gates are connected to a precharge signal source through a fuse F1. When these are replaced by a redundant cell, the fuse F1 is cut and no charge is supplied to the defective bit lines D and the inverse of D and if there is an abnormal leak path in defective lines, no current flows.
Patent JP-H0436693-A (JP)
Title: Nuclear fuel capturing device
Inventor: HOSOYA KIYOKAZU
IPC: G21C19/19
Filed: 1990-06-01
Abstract: PURPOSE:To improve safety by preventing an expansion pipe and a capturing tool from being damaged due to an abnormal load by mounting rocking mechanisms on the connection parts of a traverse carriage, the expansion pipe, and the capturing tool respectively. CONSTITUTION:It is assumed that a fuel assembly 6 is rocked in a lateral direction due to an unknown cause and the capturing tool 4 and the expansion pipe 3 are rocked when this device loads the fuel assembly 6 and performs the transportation of the assembly between channel pools. At this time, the maximum stress occurs at the connection part of the traverse carriage 2 and the expansion pipe 3, and that of the expansion pipe 3 and the capturing tool 4 by a force rocking in a horizontal direction. Also, a vertical force is applied to the expansion pipe 3 and the capturing tool 4 capturing the assembly 6. Therefore, the forces in horizontal and vertical directions can be attenuated by providing the rocking mechanisms 5 and springs 7 at the connection part of the traverse carriage 2 and the expansion pipe 3, and that of the expansion pipe 3 and the capturing tool 4, respectively. Thereby, the force applied to the assembly 6 when it is transported can be reduced, which displays an effect to prevent the fuel damaged.
Patent JP-S5842947-A (JP)
Title: Leakage detector for flow path of pipeline
Inventor: TSUNODA TOMIO
IPC: G21C17/003
Filed: 1981-09-08
Abstract: PURPOSE:To detect fine leakage speedily by detecting oscillation of a flow passage due to the leakage. CONSTITUTION:The oscillation of a flow passage, detected by a sensor 4, is supplied through a preamplifier 5 and a main amplifier 6 to an AC-DC converter 7, where it is converted into a DC signal. The level of this DC signal corresponds to leakage. Then, the DC signal from the converter 7 is supplied to a signal processor 8. When the input level exceeds a leakage detection level, the processor 8 measures this time. Then when the measured time is longer than predetermined time, a leakage signal is outputted and display is performed on a display device 9. Thus, the oscillation due to the leakage is detected and processed to detect fine leakage speedily.
Patent JP-S5932745-A (JP)
Title: Solar light energy converter
Inventor: TAKAOKA DAIZOU
IPC: F24S10/75
Filed: 1982-08-13
Abstract: PURPOSE:To eliminate the breakage at a joint by a structure wherein a sealing ring, the thermal expansion coefficient of which is nearly equal to that of a glass plate, is installed between an outer package case and the glass plate. CONSTITUTION:The metallic sealing ring 11 is interposed between the glass plate 10 and the joining flange 4' formed at the peripheral edge of the upper surface opening of the outer package case 4 and yet made of a material, the thermal expansion coefficient of which is nearly equal to that of the glass plate 10, such as Ni-Cr alloy or the like and formed with a lower piece 11a, on which the joining flange 4' of the outer package case 4 is to be placed, and an upper piece 11b, on which the glass plate 10 is to be placed. And, fritted-glass binder 12 is coated on the upper piece 11b and then the glass plate 10 is placed on the piece 11b. After that, the ring 11 and the glass plate 10 are heated together so as to melt the fritted-glass binder 12 in order to join the ring 11 and the glass plate 10 with each other. Because the glass plate 10 and the sealing ring 11 have nearly the same thermal expansion coefficient, no breakage of the glass plate 10 occurs even when the outer package case 4 and the sealing ring 11 are heated by sunbeams.
Patent JP-S5668113-A (JP)
Title: Fixture apparatus of preliminary opening roller in carding machine
Inventor: KAMIMURA KOUICHI
IPC: D01G15/26
Filed: 1979-10-31
Abstract: PURPOSE: To titled apparatus, designed to facilitate the attaching, the adjustment of a gauge and the handling with a narrow space, and comprising gauge adjusting screws and adjusting bolts for adjusting the gauge between small diameter rollers arranged in a specific state.  
     CONSTITUTION: Brackets 8 for supporting small diameter rollers 7 wound woth a metallic card clothing via bearings are attached to a back concentric bent 2 with attaching bolts 9 via attaching washers. The brackets 8 have gauge adjusting screws 10 at the backs and adjusting bolts 11 at the top and bottom sides, and the gauge adjusting screws 10 are arranged to hold gauge adjusting stands 12 with cylindrical washers 13. The adjusting bolts 11 are arranged to hold and come into contact with bolt contacts 14 fixed to the back concentric bend 2. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H0813790-A (JP)
Title: Concrete form panel surface sheet and concrete form panel regeneration method
Inventor: MITANI OSAMU
IPC: E04G9/05
Filed: 1994-06-23
Abstract: PURPOSE:To provide a regeneration method for a form panel for concrete by preventing concrete from ingressing in between a form panel and a surface sheet even when they are in use, installing the surface sheet to the form panel, and thereby fixing it thereto. CONSTITUTION:In the surface sheet 1 which is made up of a plate section 1a roughly identical in shape to the surface of a form panel 2 to be regenerated, and of lug sections 1b to be joined with the respective sides of the plate section 1a, the plate section 1a is put on the surface of the form panel 2 while the respective side are being aligned. Each lug section 1b is bent down to the back face side of the form panel 2, and each lug section 1b is fixed onto the side surfaces of the form panel 2. The form panel 2 is thereby regenerated by furthermore installing the surface sheet 1 over the surface of the form panel 2 for fixing it thereto.
Patent JP-H01312181-A (JP)
Title: Key
Inventor: KAWAMOTO AKIRA
IPC: E05B19/04
Filed: 1988-06-10
Abstract: PURPOSE:To enhance maintenance of a key by a method in which the sliding movement or stopping in a magnetic sheath of a key consisting of a sheath with a groove and a key part to be moved in or out of the magnetic sheath or to be stopped is allowed and the effective length of the key part can also be lengthened. CONSTITUTION:A key 1 consists of a sheath 2, a key part 3, a housing part 4, a coupler plate 5, and a cover 6. The sheath 2 has a groove 7 to house the base of the key part 3 and the housing part 4, and projecting recessions 9 and 9' allowing the projecting end pieces 8 and 8' of the key part 3 to move. When the base of the part 3 is housed in the sheath 2, the key 3 is put to unusable state due to short length, and the plate 5 is turned downwards by touch of a magnet 40. The key part 3 is pulled out to outside, the coupling piece 14 is fitted into the groove 19, and the part 3 is put to usable state due to effective length. The maintenance of the key can thus be raised.
Patent JP-H06330309-A (JP)
Title: Method for forming film by collimation sputtering method and apparatus therefor
Inventor: TAKAHASHI AKIRA
IPC: H01L21/203
Filed: 1993-05-20
Abstract: PURPOSE:To prolong the exchange period of a collimator, to enhance its working rate and to reduce the cost for operation of the process by vibrating the collimator and suppressing the deposition of particles on the inside surface of the aperture of the collimator. CONSTITUTION:The particles of the target metal or its compd., etc. deposited on the inside surface of the aperture of the collimator 4 are indirectly attracted with relatively weak force directly or indirectly via other deposited particles on the inside surface of the aperture in an initial state of a small deposition density. The undeposited particles vigorously collide against other particles of gaseous argon for discharge or gaseous nitrogen, etc., for reaction and are sprung when the brittle deposited layer of the initial state is vibrated at a high speed by ultrasonic vibrator transducers 6a, 6b, etc., by which the growth of the deposited layer is hindered. Then, the device is constituted to vibrate the collimator 4 and, therefore, the formation of the deposited layer within the aperture is suppressed and the life is greatly prolonged. The number of exchange times of the collimator 4 is, therefore, drastically decreased and the working rate of the film forming process is improved.
Patent JP-H078748-A (JP)
Title: Wet process flue gas desulfurization and device using desulfurization method
Inventor: KAKO HIROYUKI
IPC: B01D53/77
Filed: 1993-06-14
Abstract: PURPOSE:To provide a flue gas desulfurization system which minimizes the discharge of drainage. CONSTITUTION:Drainage containing a trace of component which is recorvered from a main desulfurization tower system 8 throught a thickener 13 is once returned to a concentration tank 25 adjacent to an oxidation tank 22 from an exhaust pipe 20, and is repeatedly sprayed into a desulfurization tower from a spray nozzle 27 above an inlet duct 6 to allow the drainage to come into contact with an exhaust gas. This drained water is concentrated by evaporation using the heat of flue gas from a boiler. Lime and air are supplied to the drainage concentrate, then this mixture is further mixed with cinders from an ash discharge pipe 3, and is finally obtained as a solid.
Patent JP-S5764951-A (JP)
Title: Manufacture of semiconductor deivice
Inventor: SAKAI HIROYUKI
IPC: H01L21/762
Filed: 1980-10-08
Abstract: PURPOSE:To accurately and deeply etch a one conductive type Si substrate by superposing the first insulating film, the second oxidation resistant insulating film and the third insulating film on the substrate, etching them with aluminum as a mask, removing the aluminum mask and etching them with the third insulating film as a mask. CONSTITUTION:An N type epitaxial layer 13 is grown on a P type Si substrate 11 having an N<+> type buried layer 12, an SiO2 film 14, an Si3N4 film 15 and a CVD SiO2 film 16 are superposed, an aluminum mask 17 is covered thereon, the three layers are selectively continuously etched with a C4F8, and the layer 13 is exposed. When the mask 17 is removed and with the film 16 as a mask the layer 13 is etched with CF2Cl2, the etched surface is clean, and an accurately vertical groove can be formed. Thereafter, the residue of the layer 16 is etched, is oxidized under high pressure to bury the groove with the layer 19, is insulated and isolated, and a semiconductor device is formed on an insular epitaxial layer 13. According to this configuration, a deep etching can be accurately and simply formed at the substrate, which is heretofore difficult, and an insulation isolation type semiconductor device can be obtained.
Patent JP-H04365296-A (JP)
Title: Speaker with amplifier
Inventor: KAKEHI RYUSEKI
IPC: H04R5/02
Filed: 1991-06-13
Abstract: PURPOSE:To obtain the speaker with amplifier which unnecessitates cords for connection between the amplifier and the speaker and simplifies the design as well. CONSTITUTION:Ant grooves 56 and 59 are formed on the left and right side faces of a case 51 and an amplifier 50, and the ant groove 56 is equipped with an electrode 58 for signal output. An ant 66 to be engaged to the ant grooves 56 and 59 is formed on one side face of a right speaker 65, and the ant 66 is equipped with an electrode 67 for signal input. The speaker 65 is linked to the amplifier 50 by engaging the ant 66 to the ant groove 56 and simultaneously, the electrode 67 is electrically contacted to the electrode 58.
Patent JP-H081633-A (JP)
Title: Form for manufacturing concrete secondary product
Inventor: ARAI HIROYUKI
IPC: B28B7/10
Filed: 1994-06-23
Abstract: PURPOSE:To improve the manufacturing efficiency of a concrete secondary product by easily separating the bottom member for forming forms for manufac turing the product from a side member. CONSTITUTION:The end flange 20 of one side member 16 for forming a form body 15 is formed of a magnetic material. A magnet unit 24 which can become a degaussed state is provided at the end flange 23 of the other side member 17. The members 16, 17 are coupled to one another by the unit 24. A bottom member 14 is formed of a magnetic material. The unit 24 which can become a degaussed state is provided at the bottom flanges 19, 22 of the members 16, 17 so that the body 15 can be coupled to the member 14 by the unit 24.
Patent JP-S6033204-A (JP)
Title: Manufacture of powdered bn
Inventor: YOSHIDA YASUO
IPC: C08L21/00
Filed: 1983-08-04
Abstract: PURPOSE:To develop crystals and to improve a packing property by mixing a specified amt. of 1 kind of compd. among oxides or fluorides of alkaline-earth metal or compds. forming oxides and fluorides on heating into a specified amt. of powdered BN of undeveloped crystals contg. oxygen, molding, sintering under specified conditions, and crushing. CONSTITUTION:1-10wt% (especially 2-7wt%) expressed in terms of oxide and fluoride of >=1 kind of compd. among oxides and fluorides of alkaline-earth metal of compds. forming oxide and fluoride on heating is added to powdered BN of undeveloped crystals contg. 1-12wt% (especially 2-10wt%) oxygen. The admixture is mixed, molded, and sintered at >=1,700 deg.C in an inert gas or a gaseous NH3 stream. The sintered body is crushed and classified, and the powdered BN of developed crystals having a good packing property is obtained.
Patent JP-H073864-A (JP)
Title: Leakage detection method of vacuum pipeline
Inventor: TAKEMOTO YOSUKE
IPC: E03F7/00
Filed: 1993-06-14
Abstract: PURPOSE:To facilitate excavation work to repair a leakage stop by pin-pointing the leakage spot of a vacuum pipeline. CONSTITUTION:Sectional valves V1 to V5 are installed to a vacuum pipeline 1 at a proper spacing. An inspection pipeline 6 is branched and installed at a spot near each downstream side while a pressure take-out pipeline 4 is branched and installed at a spot near the upstream side. A plug 9 is inserted into the vacuum pipeline 1 from an inspection pipeline 6 and an a vacuum line 12 is connected to the pressure take-out pipeline 4 where the operation is started and the plug 9 is intermittently advanced at the downstream side. Air is supplied to the plug 9, thereby allowing its stop position to be placed in close contact the internal surface of the vacuum pipeline 1 near to the downstream side-sectional valve V2 step by step. It is possible to pinpoint the leakage spot by measuring a drop in the degree of vacuum resultant from elapsed time between the stop position of the plug 9 and the downstream-side sectional valve V2.
Patent JP-S5765903-A (JP)
Title: Converting circuit for receiving frequency
Inventor: SHINOZAKI SATORU
IPC: H03D7/02
Filed: 1980-10-13
Abstract: PURPOSE:To simplify the circuit constitution and to reduce power consumption, by using a DC amplifying transistor for a bias circuit. CONSTITUTION:A receiving signal and a local oscillation signal which are applied to a high frequency input terminal 1 are mixed by a mixer diode 2 and are converted to an intermediate frequency signal through a low-pass filter 3 and are taken out through a coupling capacitor 4 from an intermediate frequency output terminal 5. A choke coil 6 sets the anode terminal of the mixer diode 2 to the ground potential, and a negative bias voltage is supplied to the cathode terminal of the mixer diode 2 by a choke coil 7. The bias voltage applied to the mixer diode 2 is given from the emitter terminal of a transistor 8. A voltage measuring terminal 9 is connected to the collector terminal of the transistor 8, and the bias voltage is controlled by a variable resistor 10.
Patent JP-S5932317-A (JP)
Inventor: WATANABE KAORU
IPC: H02H3/05
Filed: 1982-08-18
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-S623860-A (JP)
Title: Device and method for suction casting
Inventor: SATO MITSUYOSHI
IPC: B22D18/04
Filed: 1985-06-28
Abstract: PURPOSE:To improve the productivity of a casting and to prevent the defect thereof by providing a pouring pipe closed with a thin-walled sealing sheet and disposing a pressure reducing mechanism which maintains a negative pressure in the chamber then immersing the port of the pouring pipe into the molten metal of a melting furnace. CONSTITUTION:The chamber 2 is installed above the melting furnace 3 and a casting mold 4 having air permeability is contained into the chamber 2. The pouring pipe 12 is provided to communicate with the cavity 10 of the mold 4 and the port thereof is closed with the thin-walled sealing sheet 13 made of the same material as the material of the molten metal 9. The inside of the chamber 2 is evacuated by a vacuum pump 8 to maintain the cavity 10 at the prescribed degree of vacuum. The melting furnace 3 is then raised to immerse the pipe 12 into the molten metal 9. The sealing sheet 13 melts upon lapse of time and the molten metal 9 is sucked into the pipe 12 from which the molten metal is packed into the cavity 10. The productivity of the casting is improved by the reduced packing time and since the suction of slag, etc. is prevented, the generation of the defect is prevented.