baber/WOPTO huggingface dataset:
Patent JP-H01318710-A (JP)
Title: Manufacture of engine valve
Inventor: TAKAHASHI WATARU
IPC: F01L3/02
Filed: 1988-06-20
Abstract: PURPOSE:To obtain a titanium alloy made engine valve excellent in wear resistance at low cost by nitriding the valve whole face after building up by using a specified powder on the face of an engine valve by forming with (alpha+beta) Ti alloy. CONSTITUTION:In case of manufacturing the engine valve consisting of a shaft part 3 and head part (valve bevel part) 7, an engine valve is manufactured with the (alpha+beta) Ti alloy of Ti-6Al-4V, etc. as the base metal. Building is executed on the face 1 of the head part 7 of this engine valve by using the powder of one or two kinds of Mo, Ta, Nb and V powders or a betaTi powder, or the mixed powder of one kind at least of a metal carbide powder or metal nitride powder further and a beta layer is formed on this building part 5. The hardness of Hv380-550 is obtd. by forming a nitride layer by simultaneously executing nitriding serving for aging as well on the whole face of the engine valve at the temp. of 350-550 deg.C.
Patent JP-S5944591-A (JP)
Title: Rotary type regenerative heat exchanger
Inventor: SASAKI MASASHI
IPC: F28D19/04
Filed: 1982-09-03
Abstract: PURPOSE:To enable to prevent leakage of gas, by fixing one end portion of a foil-like film member made of a resilient material on the side of a casing, and holding the other end portion of the foil-like film member between a retainer and a pressure receiving and transmitting surface of a holder of a seal member by the aid of an elastic member. CONSTITUTION:An annular foil-like film member 32 made of a resilient material is held betwee a clamping plate 35 and a film holder 33 attached to a casing 24 of a fluid duct 34, and its outer circumferential portion 32B is held between a holder 36 and a retainer 37 by the aid of a spring 38 which applies an urging force to the outer circumferential portion. Further, a pressure receiving plate 39 is attached to the holder 36 and the pressure difference between a high-pressure space 20 and a passage 21 is transmitted uniformly to a sliding contact member 27 of a core 1 via a pressure receiving surface of a width L. With such an arrangement, a proper pressing force can be applied to the sliding contact member according to the conditions of use of a heat exchanger, and sealing effect capable of minimizing leakage can be obtained. Further, deflection of the film member due to uneven thermal expansion can be absorbed by a soft holding means of a spring.
Patent JP-S6044825-A (JP)
Title: Flow-rate measuring method
Inventor: ANDOU HIDEKAZU
IPC: G01F1/00
Filed: 1983-08-23
Abstract: PURPOSE:To make it possible to perform highly accurate measurement by a simple circuit, by obtaining a flow rate, from the resonance frequency of an ultrasonic wave vibrator, Q, and impedance or admittance at the resonace frequency. CONSTITUTION:An injection port 3 is opened at the lower end part of a side wall 2 of a tank 1. A fluid 4 is made to flow into the tank at a constant flow rate. The fluid 4 is overflowed from the upper surface of the tank 1 and discharged. An ultrasonic wave vibrator 5 is fixed to the outside of the bottom of the tank 1. An electric signal is sent from a signal generator 6, and the ultrasonic wave vibrator 5 is vibrated. The electric signal from the signal generator 6 having constant-current characteristics is swept at a frequency in the vicinity of the resonance frequency of the ultrasonic wave vibrator 5. The values of the voltage and the current of the signal are measured and a ratio of the voltage value/current value is obtained. Thus the impedance characteristic is obtained. By the similar way the frequency-impedance characteristic or a frequency- admittance characteristic corresponding to the flow rate is obtained. Based on the characteristics, the resonance frequency, Q, and the impedance or admittance at the resonance frequency are obtained.
Patent JP-H05341104-A (JP)
Title: Optical molded product
Inventor: ITAGAKI SHIGEO
IPC: G02B1/115
Filed: 1992-06-12
Abstract: PURPOSE:To provide a wear resisting coat and improve weather resistance by forming the wear resisting coat including a specified fine grain inorganic material on an optical base, and forming a silicon oxide thin film having a specified refractive index thereon. CONSTITUTION:On a lens base as an optical base material, a wear resisting coat including a fine grain inorganic material of 1-300nm is formed. A silicon oxide thin film having a refractive index less than 1.470 is further formed on the wear resisting coat by regulating the vacuum of an evaporating device. The fine grain inorganic material preferably includes those obtained by mixing one or two or more kinds of antimony oxide sol, zirconium oxide sol, titanium oxide sol, tin oxide sol, tungsten oxide sol, composite sol of titanium oxide and cerium oxide, composite sol of titanium oxide and iron oxide, composite sol of tin oxide and tungsten oxide, or tin oxide sol covered with the composite sol of tin oxide and tungsten oxide. The silicon oxide thin film is a reflection preventing film or a part thereof.
Patent JP-H0318237-A (JP)
Title: Uninterruptible power supply system
Inventor: SAKAMOTO TAKESHI
IPC: H02J9/08
Filed: 1989-06-15
Abstract: PURPOSE:To prevent the malfunction of a load by performing the stabilization of output frequency on the private power generation equipment side and the control of output frequency on the uninterruptible power supply side through the detection of the output frequency of a private power generation equipment by a frequency detector. CONSTITUTION:A frequency detector 13, which detects the output frequency of a private power generation equipment 1 to detect whether the output frequency is within or outside the range of the allowable frequency of a load 4, to generate its detection output and to generate a voltage signal changing in the manner of corresponding to the detected frequency, is provided between the output of the private power generation equipment 1 and the input of an uninterruptible power supply 3. The uninterruptible power supply equipment 3 is equipped with an inverter control means, which receives the detection output of the frequency detector 13 and controls an inverter 6 so that the detection output is converted into the AC output with the output frequency synchronized with the output frequency of the private power generation equipment 1 at the time of detection within the range and the frequency to be set within the allowable frequency range of the load is used as the output frequency at the time of detection outside the range of the frequency detector 13, and equipped with an engine-speed governing means so that the output frequency becomes the rated frequency of the load.
Patent JP-H01321981-A (JP)
Title: Seizing agent composition
Inventor: ONISHI MOTOKO
IPC: D06M15/285
Filed: 1988-06-21
Abstract: PURPOSE:To obtain a liquid seizing agent composition for home use having tension and good touch by copolymerizing two or more kinds of monomers of an ester of acrylic acid or methacrylic acid and styrene monomer, etc., with a specific cationic monomer. CONSTITUTION:Two or more kinds of monomers selected from an ester of acrylic acid or methacrylic acid and 1-20C aliphatic alcohol and styrene monomer and a cationic monomer shown by formula I (R1 is H or methyl; R2 to R4 are H, 1-4C alkyl, etc.; Y is O or NH group in amide bond; X<-> is monovalent anion; m is 1-10), formula II (R5 to R7 are H or 1-2C alkyl; X<-> is as shown above) or formula III (R8 is 8-22C hydrocarbon; R9 and R10 are 1-3C alkyl; R11 is H or methyl; X is as shown above) are subjected to emulsion polymerization to give a liquid sizing agent composition for home use containing an aqueous resin dispersion, having <=0.5mum particle diameter of aqueous resin, 0-60 deg.C glass transition temperature and <=50 deg.C lowest film-forming temperature.
Patent JP-H0320500-A (JP)
Title: Observation of electroplating electrode and automatic plating device
Inventor: IKETANI MOTOSHI
IPC: C25D21/12
Filed: 1989-06-15
Abstract: PURPOSE:To automatically obtain a uniform and high quality plating by providing a microscope capable of observing the change on the surface of the energized electrode and a means for processing the pictures of the electrode surface picked up through the microscope. CONSTITUTION:A current is applied between the platinum electrode 7 (anode) and substrate 6 to be plated (cathode) arranged in an electrolytic cell 4 filled with an electrolyte 5. The surface of the energized substrate 6 is observed by the optical microscope 1 through the window of the cover glass 8 opposed to the electrodes 6 and 7. The image of the change on the substrate surface is picked up by a TV camera 21 fixed to the microscope 1, the image is observed by a monitor 22, as required, and the picture is processed by a computer 23. The voltage to be impressed on the electrode is controlled by a voltage generator 24 in accordance with the result of the picture processing.
Patent JP-H05320540-A (JP)
Title: Coating compound composition for preventing adhesion of underwater organism
Inventor: NAKAI NOBORU
IPC: C09D5/16
Filed: 1992-05-19
Abstract: PURPOSE:To obtain a coating compound composition useful for ships, marine structures, etc., slightly attaching underwater organisms themselves to the ships, etc., applicable in a superimposed way, having excellent hydrophilic nature without using an antifouling agent having toxicity, comprising a given amount of a specific resin as a vehicle component. CONSTITUTION:The objective composition comprises (A) 1-100wt.%, resin obtained by polymerizing (i) a polymerizable unsaturated monomer in the presence of a reactional product of (i) a compound containing a polyoxyethylene chain and a hydroxyl group or a carboxyl group, or a reactional product of the compound with (ii) a compound containing two or more functional groups capable of reacting with the hydroxyl group and the carboxyl group and a compound containing functional groups capable of complementally reacting with the functional group in the component (i) or the functional groups in the reactional product of the component (i) with the component (ii) and a mercapto group as a vehicle component and preferably (B) a water-insoluble resin (e.g. PVC) except the component A as a vehicle component.
Patent JP-H11343500-A (JP)
Title: Cleaning sheet
Inventor: YOSHIKAWA MASASHI
IPC: D04H1/498
Filed: 1998-06-02
Abstract: PROBLEM TO BE SOLVED: To obtain a cleaning sheet exhibiting excellent scraping property and finishing performance in the wiping of stain on a hard surface such as furniture by constituting the sheet with a laminated sheet produced by laminating a specific nonwoven fabric on a specific melt-blow nonwoven fabric. SOLUTION: The objective sheet is a laminated sheet produced by laminating (A) a nonwoven fabric composed of (i) an oleophilic fiber having an average fiber diameter of 0.01-30 μm and (ii) a hydrophilic fiber having an average fiber diameter of 0.01-30 μm at an (i/ii) weight ratio of 1/9 to 9/1 to at least one surface of (B) a melt-blow nonwoven fabric having an average diameter of the constituent fiber of 0.1-10 μm. The component (i) is preferably polyester fiber, polyolefin fiber, polyamide fiber, acrylic fiber, etc., and the component (ii) is preferably cotton, rayon, pulp, etc. The sheet may be impregnated with 0.3-3.0 g of a cleaning liquid containing 0.5-50 wt.% of a water-soluble detergent and/or 0.001-5 wt.% of a surfactant based on 1 g of the sheet.
Patent JP-S5485192-A (JP)
Title: Colored fluorescent substance and production thereof
Inventor: ISHIZAWA AKIO
IPC: C09K11/02
Filed: 1977-12-21
Abstract: PURPOSE: To obtain the title substance which hardly causes separation of fluorescent substance particles and pigment particles when applied, by attaching a radical (co)polymer to pigment-mixed or adhered fluorescent substance powder.  
     CONSTITUTION: Pigment-mixed or adhered fluorescent substance powder is dispersed in an aq. liquid. The pigment may be, e.g. cobalt blue. To the dispersion is added a radical (co)polymerizable monomer such as n-propyl methacrylate. A HSO 3   -  forming substance is then added as catalyst to carry out graft reaction for about 1W8 hr. The ratio of the powder to the radical (co)polymer is 50W99.5:50W 0.5, pref. 90W99:10W1 by wt. The resulting fluorescent substance is used for cathode ray tubes for color TV, etc. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S639163-A (JP)
Title: Semiconductor photodetector
Inventor: SUGIMOTO YOSHIMASA
IPC: H01L31/10
Filed: 1986-06-30
Abstract: PURPOSE:To obtain a high-speed and highly efficient photodetector by a method wherein a Bragg reflector consisting of a laminated structure, wherein specific multiple quantum well layers and specific semiconductor layers are alternately laminated, is provided at the opposite position to the incident surface of light of a photo absorption layer. CONSTITUTION:A layer structure (laminated Bragg reflector) 9 consisting of a laminated structure formed by alternately laminating/multiple quantum well (MQW) layers (c); which are each formed by laminating alternately two semiconductor layers whose forbidden band widths are each Eg1a and Eg1b (Eg1a>Eg1b) and have a thickness of (d1) and a reflection coefficient of (n1); and semiconductor layers; which are Eg2 (Eg2>=Eg1a, Eg2>Eg1b) in forbidden band width and have a thickness of (d2) and a reflection coefficient of (n2) (n1>n2); is provided at the opposite position to the incident surface of light of a photo absorption layer (n<-> InGaAs layer) 4 of a semiconductor photodetector provided with a laminated structure including the photo absorption layer 4 consisting of a semiconductor layer having a first conductivity type and semiconductor layers (p<+> InGaAs layer and P<+> InP layer) 3 and 2 having a second conductivity type reverse to that of the semiconductor layer 4. This layer structure 9 is so contrived as to satisfy the relation of lambda=2(n1d1+n2d2) to a specific wavelength (lambda). For example, the above layer structure 9 is formed into a structure wherein the MQW layers formed by laminating alternately InP layers (a) and InGaAs layers (b) and InAlAs layers (d) are laminated.
Patent JP-S5276842-A (JP)
Title: Memory elements
Inventor: EGAWA HIROSHI
IPC: G11C29/00
Filed: 1975-12-22
Abstract: PURPOSE: A comparatively large numbers of faulty bits and faulty bit groups are salvaged so that large-sized and large-capacity memory elements which operate properly and surely can be manufactured with a high yield and at a cheap cost. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S5276643-A (JP)
Title: Voltage doubler commutating circuit
Inventor: UEDA KAZUHIRO
IPC: H02M7/10
Filed: 1975-12-22
Abstract: PURPOSE: By making the capacity of the lowest-stage commutator of both commutating poles in a summetrical CW circuit-larger thas n those of commutators in other stages aimed at is to prevent the breakdown of the commutator, and to make the regulating supplied voltage unnecessary. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S5855197-A (JP)
Title: Fused flux for submerged arc welding
Inventor: KOMIZO HIROICHI
IPC: B23K35/362
Filed: 1981-09-28
Abstract: PURPOSE:To form weld metal having high toughness without degrading the refiring characteristics of arcs by controlling the compsn. of a fused flux for submerged arc welding adequately and coarsening the grain sizes thereof. CONSTITUTION:In order to decrease the content of oxygen in weld metal and to improve toughness in submerged arc welding, the partial pressure of gaseous F in an arc atmosphere is increased by contg. CaF2 in the flux used whereby containing of O2 in weld metal is prevented. The flux to be used for said purpose is formulated to contain 5-25% SiO2, 0.5-15% MnO, 5-25% CaO, 5- 20% MgO, 2-20% Al2O3, 2-10% TiO2, 1-5% BaO, 20-60% CaF2, to contain 0.1-1.5% B2O3 if necessary, and to contain (CaO+MgO)/SiO2 at 1.5-3.0 ratio. Such flux is used at grain sizes coarser than 200 meshes specified in ASTM. Welding is accomplished with the stable arcs without degrading the refiring characteristics of the arcs owing to an increase in the content of CaF2.
Patent JP-H09317476-A (JP)
Title: Cylinder fuel injection type engine
Inventor: UCHIDA MASAHIRO
IPC: F02F1/42
Filed: 1996-05-25
Abstract: PROBLEM TO BE SOLVED: To improve engine performance by a method wherein a direction of fuel injection through a fuel injection valve is pointed to a desired direction by improving the degree of freedom of the inclination angle of the fuel injection valve when the fuel injection valve is arranged. SOLUTION: An opening part of an intake passage 13 communicated with the front part of a combustion chamber 11 forms an intake opening part 14. The opening part of an exhaust passage 16 communicated with the rear part of the combustion chamber 11 forms an exhaust opening part 17. The lower end part 27 of a fuel injection valve 26 is positioned, in the plane view of a cylinder 2, in a longitudinal direction between the intake and exhaust opening parts 14 and 17 and positioned in a lateral direction on one side of the combustion chamber 11. The fuel injection valve 26 is inclined such that the upper end part 29 thereof is pointed in a lateral direction to the outside of the combustion chamber 11.
Patent JP-S5580806-A (JP)
Title: Method and device for demagnetization of magnetic tape
Inventor: NAKAO ISAMU
IPC: G11B5/024
Filed: 1978-12-11
Abstract: PURPOSE: To ensure the perfect demagnetization with no uneveness by providing the magnetic field generator which generates the magnetic field in the winding direction of the demagnetized tape, giving the magnetic field while turning the magnetic field generator and then giving attenuation gradually.  
     CONSTITUTION: Electromagnet 12 is provided at the lower part of tape mounting plate 11, and then fixed to rotary plate 13 to be turned along with generation of magnetic field 6 in the winding direction of demagnetized tape 14. Electrode 18 and 19 are attached to shaft 16 of plate 13, and thus the power is supplied to exciting coils 23 and 24 of the electromagnet via contact terminals 20 and 21. At the same time, plate 13 is turned by motor 25. Tape 14 is placed onto plate 11, and push-button 27 is pressed. Thus the electric conduction is secured between magnet 12 and motor 25, and as a result magnet 12 generates the saturation magnetic field and also rotates along the winding of the tape. After this, the magnetic field is attenuated gradually by control unit 22 and down to zero. Here button 27 is released to complete the demagnetization. Thus the perfect demagnetization is possible with no unevenness. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-2000335109-A (JP)
Title: Optical recording medium and recording method thereof
Inventor: ITO KAZUNORI
IPC: G11B7/2534
Filed: 1999-06-01
Abstract: PROBLEM TO BE SOLVED: To provide a phase changing type optical recording medium capable of effecting a high-density recording having a capacity of at least a DVD-ROM, and prominent in over writing characteristics in a high recording linear speed of at least two times thereof. SOLUTION: The recording medium is constituted of at least a first dielectric layer, a phase-changing type recording layer, a second dielectric layer and a metallic reflection layer, which are laminated in this order, while the composition of the recording layer is explained by the compositional formula of AgaInbSbxTey. In the formula, a, b, x, y are respectively in the atomic ratio specified as 0<a<=0.01, 0.03<=b<=0.10, 0.40<=x<=0.70, y=1-a-b-x, and the ratio r of (x-a-1/3d)Sb/((y-2a-2/3b)Te+(x-a-1/3d)Sb) is in the range of 0.7<=r<=0.85.
Patent JP-2000000847-A (JP)
Title: Injection molding machine, pellet supply unit, method for injection molding, and injection molding article
Inventor: ASANO TSUTOMU
IPC: B29C45/18
Filed: 1998-04-27
Abstract: PROBLEM TO BE SOLVED: To completely remove a moisture and a gas in an undried resin pellet generated in a melt in an injection molding chamber by continuously or discontinuously supplying a predetermined prescribed supply amount into the chamber of the undried resin pellet. SOLUTION: An undried resin pellet of a predetermined prescribed supply amount from a pressure in at least an injection molding chamber 14 or a pellet storage unit 34 is supplied into the chamber 14. A gas containing a moisture and a gas evaporated from the pellet in a melting step in the chamber 14 is exhausted under a reduced pressure into the atmosphere.
Patent JP-S5677590-A (JP)
Title: Priming device for rotary pump
Inventor: MORO KAZUO
IPC: F04B49/02
Filed: 1979-11-28
Abstract: PURPOSE: To protect the pump from damage by a method wherein a priming liquid tank is provided above the rotary pump and the tank is connected to the suction side of the pump by a pipe.  
     CONSTITUTION: The priming liquid tank 12 is provided above the rotary pump 1 and is connected with the suction side of the pump 1 by the pipe 13. Accordingly, since the pump can be automatically primed when it is started and when it is operated under no load, a rotor can be prevented from generating heat and the pump is protected from damage due to heat. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H114277-A (JP)
Title: Transmission line controller
Inventor: HARADA ATSUSHI
IPC: H04L1/00
Filed: 1997-06-11
Abstract: PROBLEM TO BE SOLVED: To provide a transmission line controller which can get a transmission line of high quality that has lower frequency of transmission errors. SOLUTION: This controller has a transmission error measurement part 6 which measures the frequency of information transmission errors for each transmission channel, a statistic processing part 7 which performs the statistic processing of the error frequency that is measured at the part 6 and sets the using priority of channels in order of lower frequency of the transmission errors, and a switch control part 8 which controls a working channel switch part 10 based on the said using priority of channels.
Patent JP-S5856523-A (JP)
Title: Phase shifter
Inventor: YAMASHITA NORIYUKI
IPC: H03H11/16
Filed: 1981-09-30
Abstract: PURPOSE:To obtain a phase shifter suitable for circuit integration, without using a timing capacitor, by forming the phase shift circuit with transistors(TRs) or the like. CONSTITUTION:TRs T1, T2 from a differential amplifier of emitter coupling and a Schmitt circuit 1 is constituted by providing a positive feedback path at a base point F of the T2 from a collector point D of the T1 via a TRT3 and diodes D1, D2. TRsT4-T7 constitute a current distributing circuit 2 controlled with a control terminal Vc and TRsT8, T9 form a differential amplifier to constitute an output circuit 3 forming an output waveform. The phase shifter consists of the said Schmitt circuit 1, the current distributing circuit 2 and the output circuit 3, which are formed with TRs only, and since no timing capacitor is used, this circuitry is most suited for circuit integration.
Patent JP-H11320741-A (JP)
Title: Gas barrier multilayer heat sealing film and its manufacture
Inventor: OCHIAI KAZUNORI
IPC: B32B7/00
Filed: 1998-05-19
Abstract: PROBLEM TO BE SOLVED: To provide a gas barrier multilayer heat sealing film having stable film forming suitability, excellent gas barrier properties, and heat sealability in a co-extruded multilayer film containing a gas barrier layer and a method for manufacturing it. SOLUTION: A barrier co-extruded multilayer film 10 comprises a heat sealing (HS) layer 5 having a density of at least 0.900 to 0.920 g/cm<3> and made of a linear polyethylene, a cushion layer 4 made of a plastomer having a density of 0.880 to 0/cm<3> , an adhesive resin layer 21, a gas barrier layer 3 having an ethylene content of 25 to 50 mol.% and occupying the EVOH of a saponification rate of 90% or more in 50 wt.% or more of the entirety, an adhesive resin layer 22 and a sticky layer 1 made of a low-density polyethylene for occupying 10% or more of the entirety in thickness.