baber/WOPTO huggingface dataset:
Patent JP-H0657348-A (JP)
Title: Production of high-purity gold
Inventor: KADOYA KENICHIRO
IPC: C22B11/06
Filed: 1992-08-07
Abstract: PURPOSE:To easily recover the high-purity gold in a short period of time by reducing aurichloride soln. after precision filtration and stopping the reduction reaction at a specific point of time at the time of producing the high-purity gold directly from the aurichloride soln. by using a reducing agent. CONSTITUTION:The slime obtd. by the electrolysis of silver is subjected to a desilvering treatment by nitric acid extraction. The slime of the desilvering is extracted with hydrochloric acid and hydrogen peroxide to elute gold, by that, the aurichloride soln. is obtd. This soln. is first subjected to coarse sepn. of impurities (about 0.2mu or finer filtration) by precision filtration and thereafter, the reduction is executed by using a reducing agent (sulfurous acid anhydride gas, etc.) and the reduction is stopped at the point of time of 80 to 95%. The amt. of the reducing agent is determined by previously analyzing the concentration of gold. By separately washing the reduced gold obtd. in such a manner, the high-purity gold of about 99.99wt.% or higher is easily obtd.
Patent JP-2001057155-A (JP)
Title: Plasma display device and manufacture thereof
Inventor: ONIKI KAZUNAO
IPC: H01J11/22
Filed: 1999-08-18
Abstract: PROBLEM TO BE SOLVED: To provide a plasma display device capable of realizing high-luminance and high-precision display. SOLUTION: In this plasma display device, maintenance electrodes 28A, 28B for surface discharge have a structure where they are stacked vertically to the surface of a front glass substrate 22. Tow left and right discharge gaps 30A, 30B contribute to the surface discharge by virtue of the maintenance electrodes 28A, 28B and improve discharge efficiency. Since the maintenance electrodes 28A, 28B are formed into a stacked structure, a display screen will not extensively close as in a conventional one, the opening rate for the display screen is improved and high-luminance display can be realized.
Patent JP-H0280532-A (JP)
Title: High tensile copper alloy having excellent bendability
Inventor: MIYATO MOTOHISA
IPC: C22C9/06
Filed: 1988-09-16
Abstract: PURPOSE:To obtain a safe, sanitary and economical high tensile copper alloy having sufficient high tensile strength, good solderability and excellent bendability by specifying the compsn. constituted of Ni, Sn, Al, Mg, Cr, Zn and Cu. CONSTITUTION:The high tensile copper alloy having excellent bendability contains, by weight, 5 to 20% Ni, 0.5 to 3% Sn, 0.5 to 5% Al, 0.001 to 0.05% Mg, 0.001 to 0.1% Cr, 0.05 to 5% Zn and the balance Cu with inevitable impurities and has 80 to 120kgf/mm<2> tensile strength. The alloy is suitable for materials such as a terminal and a connector for electrical equipment such as an aircraft and a large computer in which high reliability is required as spring materials. The copper alloy is furthermore safe, sanitary and economical and has the bendability, tensile strength, toughness, solderability, resistance to thermal peeling of solder or the like equal to or above those of beryllium copper.
Patent JP-H0897795-A (JP)
Title: Multi-program coding and transmission device provided with controlling function for bit rate
Inventor: NISHIDA YUKIHIRO
IPC: H04J3/16
Filed: 1994-09-27
Abstract: PURPOSE: To realize the multi-program coding transmitter by a variable bit rate system with a small scale device. CONSTITUTION: Plural coders 10-1, 10-2,..., 10-N each including a coding means 11, a data buffer 12, an information quantity control means 13 and a data buffer control means 14, a data multiplexer 100 including a priority control means 101, a multiplexer means 102, a main buffer 103 and a main buffer control means 104 are provided and the priority control means 101 and the multiplexer means 102 select and send with priority output data of a coder occupied most highly among the plural coders 10-1, 10-2,..., 10-N.
Patent JP-S6386362-A (JP)
Title: Molten carbonate fuel cell stack
Inventor: SETA YOICHI
IPC: H01M8/02
Filed: 1986-09-30
Abstract: PURPOSE:To obtain a molten carbonate fuel cell stack having corrosion resistant gas sealing structure by forming a specific corrosion resistant layer at each edge of a conductive separator having a fuel gas supply passage and an oxidizing agent gas supply passage on its both sides. CONSTITUTION:Before side wall members 6a, 6b of a separator 4a are mounted to a separator plate 5, a 100mum thick aluminium foil is clad in each A portion of the members 6a, 6b, and an alumite layer is formed on the clad surface with all surfaces other than the clad surface masked. The alumite surface is coated with lithium-potassium carbonate and they are heated. Thereby, a corrosion resistant layer 10 comprising pillar-shaped holes 11, a lithium aluminate porous layer, a lithium aluminate barrier layer, and an aluminium base layer is obtained. The separator plate 5 having this separator 4a is combined with an electrolyte plate, an oxidizing agent electrode, and a fuel electrode, and they are stacked, and manifolds are mounted to the stack to obtain a fuel cell.
Patent JP-S6386977-A (JP)
Title: Color solid-state image pickup device
Inventor: YAMAGUCHI SHINICHI
IPC: H04N5/335
Filed: 1986-09-30
Abstract: PURPOSE:To reproduce a still picture in a small circuit scale, by switching the titled device so that a converting output of a soild-state image pickup element is supplied to a storage means provided with a memory at the time of reproducing a still picture, and a readout output of the storage means is supplied to a composite video signal generating means. CONSTITUTION:At the time of usual photographing for outputting an image of an object as it is, a movable armature (a) of a switch 45 is connected to a terminal (b), and a switch 46 is set to an OFF state. Accordingly, an output of a gamma correcting circuit 43 is provided to a Y/C separating circuit 48 of a composite video signal generating circuit 47. Also, at the time of reproducing a still picture, the movable armature (a) of the switch 45 is connected to a terminal (c), and the switch 46 is set to an ON state. Accordingly, the output of the gamma correcting circuit 43 is supplied to an A/D converting circuit 54 of a memory circuit 53 through the switch 46, and converted to a digital signal. This signal which has been converted to a digital signal is stored in a real time in a memory 55. The signal which has been read out in a real time from this memory 55 is reversely converted to a one-dimensional color signal by a D/A converting circuit 56, and thereafter, supplied to the Y/C separating circuit 48 through the switch 45.
Patent JP-H0876405-A (JP)
Title: Color toner for nonmagnetic unitary development
Inventor: TOMITA MASAMI
IPC: G03G9/08
Filed: 1994-09-01
Abstract: PURPOSE: To provide a color toner that is able to stabilize a toner's charged value on a developing roller of this color toner, securing a sufficient developing quantity to an latent image holder at the elapse, and to prevent any texture fogging on the image in addition. CONSTITUTION: On the surface of base coloring grains of 5 to 10μm in volume mean grain size consisting of at least a colorant, binder resin and an electrostatic charge control agent, 1) at least fine powder of hydrophobic silica is made up of being mixed and covered at the rate of 0.3 to 1.0 pt.wt. to 100 pt.wt. of the base coloring grains, 2) when the absolute value of charged value in the base coloring grains is set to Q1 μC/g as well as the adsolute value of charged value in a toner grain to Q2 μC/g, respectively, relations of 0.8<Q1 /Q2 <1.2 are materialized and 3) when a coherent degree of the base coloring grains is set to G1 % as well as that of the toner grain to G2 %, respectively, relations of G2 %<G1 %<3×G2 % are materialized.
Patent JP-H09128939-A (JP)
Title: Automatic pushing device for turntable
Inventor: SAI EISHIYAKU
IPC: G11B25/04
Filed: 1996-09-02
Abstract: PROBLEM TO BE SOLVED: To provide an automatic push-in device of a turntable for minimizing eccentric errors. SOLUTION: A driving motor is freely attachably and detachably installed to a driving motor fixing part 120, a turntable assembly is freely attachably and detachably installed to a turntable assembly fixing part 170 and the rotary shaft of the turntable assembly is arranged coaxially to the shaft of the driving motor. An insertion projection 178 is formed on the bottom surface of the turntable assembly fixing part and is made insertable and detachable to/from a groove 122 installed on the turntable. A motor shaft fixing part is composed of a receiving part 132 for which a guiding oblong hole is formed so as to make a motor shaft freely insertable and detachable at the upper part of a drive chassis 160 and a motor shaft supporting part 134 provided with a side wall bent and extended vertically upwards from the end part of the guiding oblong hole.  Since the motor shaft supporting part 134 clamps and fixes the motor shaft around so as not to move in the process of pushing in the motor shaft to the turntable assembly, the deflection of the motor shaft due to push-in force into a shaft direction is prevented.
Patent JP-H0552263-A (JP)
Title: Piston ring
Inventor: SHINADA MANABU
IPC: F02F5/00
Filed: 1991-08-20
Abstract: PURPOSE:To provide a piston ring which possesses the superior seizure resistance and abrasion resistance. CONSTITUTION:A piston ring has an outer peripheral sliding surface consisting of a composite plated layer which is formed by dispersing the chrome oxide particles having an average particle diameter of 0.5-10mum in 5-40% in area ratio, into a substrate made of the Co-Ni-p alloy consisting of 1-10wt.% P, 10-40wt.% Ni, and 55-80wt.% cobalt.
Patent JP-H0394072-A (JP)
Title: Method for plating thin film
Inventor: HIRUMA YOSHIMASA
IPC: C23C18/18
Filed: 1989-09-07
Abstract: PURPOSE:To deposit a metal on foil of an amphoteric metal, etc., by a wet plating method by etching the foil with a soln. contg. KOH, KCN, etc., and by subjecting a Pd salt such as PdCl2 or Pd(NO3)2 to metal substitution under prescribed conditions. CONSTITUTION:An etching soln. contg. 10-80g/l NaOH, KOH, KCN, NaCH or mixture of them is prepd. and a thin film of an amphoteric metal is etched with the etching soln. at 5-35 deg.C. PdCl2, Pd(NO3)2, PdSO4 or Pd(COOH)2 is prepd. and subjected to metal substitution in the form of a soln. having 0.1-1g/l concn. of the Pd salt at pH10-12 and 5-35 deg.C to carry out electroless plating.
Patent JP-H0979486-A (JP)
Title: Outboard motor of ship
Inventor: KIMURA SAKAYUKI
IPC: F02B61/04
Filed: 1995-09-11
Abstract: PROBLEM TO BE SOLVED: To prevent the corrosion of an oil pan without providing a special structure to prevent the salting, and to improve the cooling efficiency. SOLUTION: In this outboard motor 1 of a vessel, an oil pan 28 is provided at the lower part of an engine holding body 9 to hold an engine 10, an exhaust chamber communicating to the exhaust passage of the engine 10 is formed at the lower side of the oil pan 28, the oil pan 28 and the exhaust chamber are covered by a casing 11, and the oil pan 28 is formed of a resin.
Patent JP-H02759-A (JP)
Title: Production of aliphatic o-arylurethane
Inventor: AOKI TADAYA
IPC: C07C271/40
Filed: 1988-09-19
Abstract: PURPOSE:To obtain the subject compound useful as an intermediate raw material for masked isocyanate and aliphatic isocyanate in high yield by reacting an aliphatic primary amine with an aromatic hydroxyl compound and urea while removing the reaction by-product. CONSTITUTION:An aliphatic primary amine is made to react with an aromatic hydroxyl compound and urea at 150-280 deg.C. The reaction is carried out while removing by-produced ammonia from the reaction system in such a manner as to keep the ammonia concentration to <=2wt.%. The amount of the hydroxyl group of the aromatic hydroxyl compound is maintained to >=1mol and that of urea is maintained to >=0.5mol based on 1mol of the amino group of the aliphatic primary amine. Since the process does not use phosgene and carbon monoxide, the objective compound can be produced in one reaction step without causing the problems of corrosion and toxicity, producing large amount of hydrogen chloride gas as a by-product nor using expensive noble metal catalyst.
Patent JP-S6477218-A (JP)
Title: Phase difference detector
Inventor: KUROIWA AKIHIKO
IPC: H03L7/085
Filed: 1987-09-18
Abstract: PURPOSE:To extend a phase difference detection range by measuring the phase difference between an AC power source and a variable frequency power source in distinction between a lead component and a delay component and obtaining the sum and the difference between them by calculation and switching and using the polarity and the magnitude. CONSTITUTION:A signal 2fps (fps is the signal having a commercial power frequency) has the frequency divided by 2 to obtain the signal fps by a frequency divider 1, and exclusive OR 2 between this signal and a motor terminal voltage phase f1 is found, and the signal in the period when the motor terminal voltage and the commercial power are different in phase is defined as a signal A. AND 4 between the signal A and the signal 2fps is found to obtain a signal B, and AND 4 between the signal A and the inverted values of the signal 2fps is found to obtain a signal C. Signals A-C are measured in one period by a counter 5 to obtain angle signals (a), (b), and (c). The polarity of b-c is added to the angle (a) by a polarity circuit 6 to obtain a signal (d). When the angle (a) is >=pi/2, a switching circuit 7 is turned on to obtain a phase difference  theta between (b-c) and (d). Thus, the phase difference detection range is extended to 360 deg.C form -pi to +pi, and removal of disturbance such as noise is enhanced.
Patent JP-H03129123-A (JP)
Title: Structural joint
Inventor: JIYON EI ENGERUHAATO
IPC: F16D1/09
Filed: 1990-08-31
Abstract: PURPOSE: To provide a joint that can resist bending, compression and twisting load simultaneously by forming a male member of a coupling part fitted into a bore of a female member, a loose insertion part smaller in diameter than an opening of the bore, and an intermediate part for connecting both parts by a curved face. CONSTITUTION: A structural joint comprises a male member 36 and a female member 38. The male member 36 comprises a regular cone part (coupling part) fitted into a bore 40 of the female member 38; a regular cylinder part (loose insertion part) extended across an opening 42 of the bore 40; and an intermediate part connecting the intermediate part of both parts by a curved face. The regular cylinder part is smaller in diameter than the opening 42 so as to form a gap G, and stress concentration is prevented by the gap G so as to obtain the structural joint that can resist bending, compression and twist.
Patent JP-2001059678-A (JP)
Title: Method for drying material
Inventor: SEKINE MASAHIRO
IPC: F26B3/347
Filed: 1999-08-19
Abstract: PROBLEM TO BE SOLVED: To rapidly dry various type materials such as a plastic, a timber or the like by heating by high-frequency induction heating the material to an upper limit temperature in an atmospheric pressure state of the air filled in a sealed chamber, pressure reducing in the chamber while cooling up to a lower limit temperature, drying the chamber, then again returning the chamber to the atmospheric pressure and repeating similar steps. SOLUTION: In order to dry various type materials such as a plastic, timber or the like, first air or inert gas is filled in a sealed chamber to maintain an atmospheric pressure in the chamber, and the materials are high-frequency induction heated until an index temperature arrives at an upper limit temperature of drying. Then, the chamber is pressure-reduced while cooling the materials to a previously set lower limit temperature, and the materials are dried. Then, after the chamber is returned to the atmospheric pressure, similar high-frequency induction heating and pressure reducing and drying are sequentially repeated.  According to this, method since an electrode voltage at the time of high-frequency induction heating and a pressure reduction degree at the time of pressure-reduced treatment can be respectively enhanced, vacuum discharging is prevented, and the materials can be rapidly dried.
Patent JP-S6478987-A (JP)
Title: Leg drive control method for moving robot with legs
Inventor: OMICHI TAKEO
IPC: B62D57/02
Filed: 1987-09-18
Abstract: PURPOSE:To have smooth striding over any obstacle by arranging a sensor at drive legs, which are equipped on the robot body and driven under control, and grasping accurately the condition of the obstacle relative to the drive legs. CONSTITUTION:In a robot body 1, a sensor 10 is mounted at the aux. drive wheel 5 of each drive leg 3a, 3b. Each sensor 10 consists of a sensor body 10a rotating coaxially at the side of the corresponding aux. drive wheel 5, an ultrasonic wave transmitting element 10b arranged at the periphery of this sensor body 10a, a receiving element 10c, an amplifier, an output device for detection signal, wherein ultrasonic waves emitted from the transmitting element 10b are sent to the periphery of the aux. drive wheel 5, and the reflected waves at an obstacle are received by the receiving element 10c. The signal received is fed into a calculating device to determine the distance of the obstacle from the wheels 5.
Patent JP-S60125321-A (JP)
Title: Production of spheroidal graphite cast iron
Inventor: SUENAGA MAKOTO
IPC: C21D1/00
Filed: 1983-12-12
Abstract: PURPOSE:To obtain a fine pearlite-base spherical graphite cast iron having high toughness and high strength by cooling quickly a casting having a spheroidal graphite cast iron compsn. from the temp. of the A1 transformation region or above to a humidity range where extremely fine pearlite is generated and allowing further the casting to cool or cooling quickly the casting. CONSTITUTION:A molten metal having a spheroidal graphite cast iron compsn. is poured into a casting mold and a solidified casting is again superheated to the uniform austenitization temp. below the A1 transformation region and is cooled quickly to produce a spheroidal graphite cast iron. The casting in this case is quickly cooled from the temp. above the A1 transformation region down to the prescribed temp. at which extremely fine and dense pearlite is produced, i.e., the prescribed temp. in the temp. range where the pearlite transformation arises at the temp. corresponding to the pearlite nose in the isothermal transformation curve or below, for example, 500 deg.C. The casting is held for prescribed time at said temp. or is cooled gently from said temp. and is then allowed to cool or quickly cooled upon lapse of prescribed time. As a result the intended spheroidal graphite cast iron is obtd. by adjusting the cooling temp. after pouring without adding any specific element.
Patent JP-2001059595-A (JP)
Title: Abraision-resistant bent pipe and manufacture thereof
Inventor: KAWAZU HAJIME
IPC: F16L43/00
Filed: 1999-08-19
Abstract: PROBLEM TO BE SOLVED: To quickly and inexpensively manufacture various bent curvatures of abraision-resistant bent pipes. SOLUTION: Segment blocks 10, 10,... of tapered ring-shape comprising an abraision-resistant material, of which inside and outside diameters are changed ranging over from its one end to its other end, are connected by an adhesive 20 or the like in a condition where each end part of their small-diametric sides is inserted inclinedly into each end part of their large-diametric sides to form a bent pipe curved with a prescribed radius. A resin coating layer 50 is provided in an outer face side of the pipe to keep air-tightness inside the pipe.
Patent JP-H1078438-A (JP)
Title: Cantilever
Inventor: MATSUYAMA KATSUHIRO
IPC: G01N37/00
Filed: 1996-09-03
Abstract: PROBLEM TO BE SOLVED: To obtain a cantilever in which the wear resistance and the adhesion of a metal thin film formed on the surface of a probe are enhanced by a method wherein a surface layer which comprises a prescribed physical property is formed on the face on the side of the probe part. SOLUTION: At the final stage of the formation of a cantilever 18, metal thin films 8a, 8b are vacuum-deposited onto both faces of a cantilever base member 18' by using a metal material which is conductive and oxidation- resistant. At this time, the cantilever is set on a holder 24 at an ion implantation apparatus, the inside of a vacuum chamber is set to a vacuum state, a prescribed element which is taken into a palsma chamber 30 from an intake port is changed into a plasma, and a prescribed voltage is applied. At this time, when a shutter 32 is opened at a prescribed timing, ions which are accelerated by the applied voltage are discharged to the direciton of the cantilever 18 on the holder 24 which is being turned, and the ions are implanted into the metal thin film 8a on the side of a probe part 6.  Thereby, crystals in the metal thin film 8a are collapsed, their density is increased, and their hardness is increased.
Patent JP-S60125030-A (JP)
Title: Synchronous terminal equipment
Inventor: FUJITA KIYOSHI
IPC: H04J3/08
Filed: 1983-12-09
Abstract: PURPOSE:To synchronize a transmission and a reception pulse train completely with each other, and to repeat them easily by operating two timing pulse generating circuits synchronously with the same multiframe information, and equalizing the delay of signal processing through a delay circuit. CONSTITUTION:A PCM pulse train is frame-synchronized by a receiving frame interface/frame synchronizing circuit 1 and converted by a frame converting circuit 2 into a new frame of a station with multiframe synchronizing timing pulses from a timing pulse generating circuit 10. The PCM pulse train from the converting circuit 2 is separated into 64kb/s data, channel by channel with pulses from the circuit 10 and outputted from a channel circuit 4. When information is repeated, channel by channel, the output of the circuit 4 is inputted to a transmitting PCM channel circuit 6, a synchronizing pattern is inserted by a frame synchronizing pattern inserting circuit 8, and the resulting information is outputted from an interface circuit 9. Although two-frame delay is performed in a mutual converting process of frames, the delay circuit 11 performs delay and the synchronizing pattern is inserted by the circuit 8.
Patent JP-S6474654-A (JP)
Title: Data transfer controller
Inventor: UCHIYAMA YUKIO
IPC: G06F13/28
Filed: 1987-09-16
Abstract: PURPOSE:To reduce the amount of hardware to simplify the control by dividing data from a storage device to partial data and distributing these partial data to desired storage parts in 1:1 to store them in designated storage positions. CONSTITUTION:An address circuit 7 sends address information indicating an address (n) to an address operating circuit 8 and a local memory part 6. The circuit 8 sends this information to a local memory part 5 as it is. Next, word data in an address N of a system memory 1 is transferred to a data handling circuit 4 by the control of a direct memory access DMA control circuit. The circuit 4 stores high-order byte data and low-order byte data of data in the address (n) of memory parts 5 and 6. Hereafter, word data in an address N+1 and following addresses of the memory 1 are stored in an address n+1 and following address of a memory 12 similarly. Thus, the amount of hardware is reduced to simplify the control.