baber/WOPTO huggingface dataset:
Patent JP-H02251111-A (JP)
Title: Manufacture of resin bonded type rare earth magnet
Inventor: SAKATA MASAAKI
IPC: H01F41/02
Filed: 1989-03-24
Abstract: PURPOSE:To manufacture a resin bonded type magnet characterized by high magnetic performance with excellent productivity by kneading the mixture of rare earth magnetic powder which is magnetized in a magnetic field that is higher than the coercivity of the magnetic powder beforehand and an organic resin, and thereafter performing extrusion molding of the kneaded material in the magnetic field. CONSTITUTION:Magnetic powder and an organic resin are sufficiently mixed. The mixture is magnetized in a magnetic field which is higher than the coercivity of the magnetic powder. Then, the mixture is heated to a temperature higher than the melting point of the organic resin and sufficiently kneaded. Thereafter, granulation is performed. The granulated magnet composition is put into an extrusion molding machine and heated in a cylinder 202. The composition is made to be a fluid state and sent into a metal mold 205 with a screw 203. The magnet composition which is injected into the metal mold 205 passes through the metal mold 205 on which a magnetic field is applied. The axes of easy magnetization of the magnetic powder in the raw material are aligned in the direction of the magnetic field, and the magnet is molded. In this way, the resin bonded type rare earth magnet characterized by the high magnetic performance can be manufactured with excellent productivity.
Patent JP-S57187175-A (JP)
Title: Pulse arc welding method
Inventor: KITANI MOTOI
IPC: B23K9/09
Filed: 1981-05-14
Abstract: PURPOSE:To eliminate the over-thrust at the starting and to cause transfer to the arc in a short time by setting the set value of the peak current value of pulses at the arc starting and the set value of background current value larger than the set values in a steady time. CONSTITUTION:Before a wire 1 arrives at base materials 3, the pulse-like voltage of which the set value of the peak current value and the set value of the background current value are set higher than the set values in a steady time (at the arc generating) is applied to the wire and the feeding of the wire is started. When the wire 1 short-circuits to the materials 3, the pulse current and the background current flow but since the set values of both are set higher, the heat input to be applied upon the wire 1 is larger than that in the prior art, thus the wire 1 is melt-cut easily and is transferred to the arc in a short time. Immediately after this, said set values are returned to the set values in the steady time, by which the wire feed troubles such as buckling of the wire 1 owing to the failure in the arc starting are prevented.
Patent JP-S62230225-A (JP)
Title: Phase comparator circuit
Inventor: YAMAMOTO TAKESHI
IPC: H03K5/26
Filed: 1986-03-31
Abstract: PURPOSE:To decrease the ripple by providing a signal leading or retarded to/ from an input signal by a half of the width of a synchornizing signal and charging/discharging a filter depending on the phase difference between the edge of the signal and the edge of the synchronizing signal. CONSTITUTION:A horizontal synchronizing pulse having a pulse width tw is inputted to a terminal 14 and frequency division signals A-C to be synchronized are inputted to terminals 15-17. The frequency division signal B is retarded by the pulse width tw to the frequency division signal A and the frequency division signal C is the inverse of the signal A led by the pulse width tw. Thus, when the edge of the signal A is at the center of the horizontal synchronizing pulse, the fall of the signal B and the rise of the signal C are overlapped with the edge of the reference signal, no charge/discharge is applied and the ripple near the center is almost eliminated.
Patent JP-H01246735-A (JP)
Title: Vacuum valve
Inventor: KITAMURA TADAO
IPC: H01H33/664
Filed: 1988-03-25
Abstract: PURPOSE:To improve large current supply performance by making at least one of a fixed conduction shaft and a movable conduction shaft, of hollow, performing pressure reduction and exhausting after pouring a specified liquid into this hollow part, and performing sealing out. CONSTITUTION:In a ceramic insulation cylinder 2, the inside of a fixed conduction shaft 6 made of copper material having a fixed electrode 5 at its lower end face is formed of hollow, and at the upper open end of the hollow part, a thin copper pipe 7 is brazed. From this pipe 7, a liquid having, under atmospheric pressure, a boiling point lower than the temperature allowable for both electrodes 5, 8 upon condition, e.g., halogen hydrocarbon liquid, is slightly supplied into the hollow part, and the inside of the hollow part is sealed off airtightwise by throttling the pipe 7 so as to reduce the pressure therein may become slightly lower than the atmospheric pressure. It is thus possible to take out heat conveyed to the end of the shaft 6 by a cooling fin and the like so as to restrain the temperature increase in the shaft and electrodes effectively and increase the large current supply performance remarkably.
Patent JP-S59199195-A (JP)
Title: Centering device for circumferential welding of pipe material
Inventor: FUJIMOTO TOMOYA
IPC: B23K37/053
Filed: 1983-04-27
Abstract: PURPOSE:To provide a titled centering device which permits sure centering with a simple operation by inserting a device of which the axial center of the central rod is preliminarily adjusted to coincide with the center of pipes to be joined into the prescribed position of the pipes and feeding an oil into a cylinder. CONSTITUTION:This device is inserted into roughly positioned two pipe materials 17, 17' from one of said materials and is pushed until the centerline of a groove 10 to be inserted with a backing material provided on the outside circumferential surface of a clamping block 7 is positioned in the middle of a groove part 18. A small-sized jack 12 for fixing is then operated to fix the device in this position. A moving member 2 is positioned near the right side of the figure and the annular diameter of the block 7 group is made smallest. A spacer having the adequate thickness at which the groove width attains a prescribed spacing is inserted into the groove 18 and thereafter an oil is fed 13 into a cylinder 6 to move gradually the member 2 together with the piston 3 toward the left. The pressing fitting 4 at the top end of the member 2 is also moved left and the fitting 4 during this movement expands gradually the annular diameter of the block 7 group, thereby centering the two materials 17, 17' and fixing the same by means of the block 7 group from the inside of the pipes.
Patent JP-H03274113-A (JP)
Title: Central mechanism in tire vulcanizing machine
Inventor: SAKAGUCHI KATSUYOSHI
IPC: B29K21/00
Filed: 1990-03-26
Abstract: PURPOSE:To easily attach and detach a bladder by constituting the title central mechanism so that a nut fixed to the upper end of a clamp rod is engaged with a small-diameter stopping part of a lower clamping and a lower ring is fixed to the lower clamping and the clamp rod is pushed up to release fixation of the lower clamping and also rotated and the upper end of the clamp rod is positioned to a large-diameter passage part to detach the lower clamping. CONSTITUTION:When a lower clamping 19 receives resiliency of a disk spring 48 and is fixed by a clamp rod 46 and vulcanizing work is continuously performed and a bladder 20 is damaged and necessity for replacement thereof is caused, a second fluid pressure cylinder 34 is lengthened and a fourth fluid pressure cylinder 45 is shrunk and thereafter a fifth fluid pressure cylinder 50 is lengthened. Thereafter when the cylinder 45 is lengthened, a stopper is intermediately stopped. Then when the cylinder 34 is shrunk, the lower end of the clamp rod 46 touches the stopper 44 and a disk spring 47 is compressed. A nut 46a at the upper end of the clamp rod 46 is floated from the contact face of the lower clamping 19. Thereafter detachment is completed by rotating the bladder assembly such as the lower clamping 19 at the necessary angle and holding it up.
Patent JP-H03275040-A (JP)
Title: Mri probe
Inventor: NAKABAYASHI KAZUTO
IPC: A61B5/055
Filed: 1990-03-26
Abstract: PURPOSE:To make it possible to switch easily a size of a receiving coil and to receive an NMR signal from various photographing field of view without decreasing an SIN ratio by providing a means which connects in series a plurality of receiving coils and forms a loop circuit by selecting one or more receiving coils. CONSTITUTION:In an MRI probe, receiving coils L1, L2 and L3 are connected in series and the receiving coil L1 forms a loop LP1 with switch circuits SW1 and SW2 and a condenser C1. When an input is performed to select the receiving coil L1 in a control means which is not illustrated, a bias voltage is fed to switch circuits SW3 and SW4. As a pin diode D becomes therefore to be under conductive condition, a parallel circuit consisting of two coil LT1/2 and a condenser CT1 is formed, and when an NMR signal with an angle frequency omega0 is fed, a parallel oscillation is generated and inpedances of the switch circuits SW3 and SW4 are rapidly increased to generate a non-conductive condition. As the result, only the loop LP1 becomes to be under conductive condition and the NMR signal received by the receiving coil L1 is fed to an amplifier P1, wherein it is amplified.
Patent JP-S55166367-A (JP)
Title: Handset holding mechanism for desk/wall-type telephone
Inventor: NARIMI ISAO
IPC: H04M1/08
Filed: 1979-06-13
Abstract: PURPOSE:To simplify the structure as well as decrease the number of component parts, by jetting out or pushing in the plunger via the empty weight of the ball within the ball case. CONSTITUTION:The following component units are provided: ball case 17 which has guide part 20 on the front face, forms the back face into slope part 21 with ball storing part 22 formed at one end of part 21 and then fixed into the housing of the telephone; plunger 6 with case 17 inserted into guide hole 12 so that the tip may protrude over the outside of the housing; and ball 18 stored inside case 17. Thus when the telephone housing is set horizontally, ball 18 moves to storing part 22 at one end of part 21 to push the tip of plunger 6 into case 17. While ball 18 shifts to the other end of part 21 when the housing is set vertically. Thus plunger 6 is fixed with its tip protruded outside the housing.
Patent JP-S61233440-A (JP)
Title: Optical head device
Inventor: KUWAYAMA TETSUO
IPC: G11B7/09
Filed: 1985-04-09
Abstract: PURPOSE:To attain a thin structure having an optical head together with reduction of the cost and also to simplify the optical control of the head device by applying a relief type diffraction grating structure to an optical divider and also leading the rays of light after reflection on the sloping surface of said grating structure. CONSTITUTION:A diffracting grating 15 has about 100% and 0% diffraction efficiency against the s and P polarized beams respectively. The P polarized light transmitted through the optical divider 13 is turned into the circular polarized light by a l/4 plate 17. This circular polarized light is condensed by an objective lens 18 and forms a spot having about 1mum diameter on a recording surface 20 formed at a substrate 19. The luminous flux reflected on the surface 20 is turned into parallel beams through the lens 18 and passes again through the plate 17 to be turned into the S polarized beam vibrating in the direction orthgonal to that of an incident mode. This reflected light 21 is 22 is made incident with a photodetector 23 while repeating the total reflection in the parallel flat plates.
Patent JP-S53668-A (JP)
Title: Apparatus for preventing overheating of electric cleaner
Inventor: MORI SHIGENOBU
IPC: A47L9/00
Filed: 1976-06-22
Abstract: PURPOSE: To eliminate difference in opening and closing air holes with a valve body by providing thereof on the side of a transparent pipe with an inlet port formed on the end thereof so as to communicate to outside air and forming a side port which is adapted to communicate to the air hole when it moves by a given distance to load, being charged toward the end of the transparent pipe on the valve body therein. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H01244813-A (JP)
Title: Manufacture of molding tool
Inventor: SHINOMIYA TAKEO
IPC: B29C33/40
Filed: 1988-03-28
Abstract: PURPOSE:To reproduce a minute facial pattern of natural stone, by a method wherein a plurality of preparatory molds made of resin, to which the facial pattern of the natural stone is transferred are cut into pieces of the same size, a main pattern is formed by juxtaposing these scanty preparatory molds and a recessed groove is provided between the adjoining scanty preparatory molds to each other. CONSTITUTION:Scanty preparatory molds 16 are formed by cutting a plurality of preparatory molds made of resin, to which a facial pattern of natural stone 15 is transferred, in pieces of the same size. A main pattern 2 is formed by juxtaposing a plurality of the scanty preparatory molds 16, a recessed groove 3 is provided between the adjoining scanty preparatory molds to each other, which have been juxtaposed on the main pattern 2 and a molding tool 4 is formed by transferring the main pattern 2. With this construction, a minute facial pattern of the natural stone can be expressed on the molding tool and in case of manufacture of a building panel, the minute facial pattern of the natural stone can be added to the surface of the building panel.
Patent JP-H07286339-A (JP)
Title: Turbid-water drainage system for fire hydrant
Inventor: SAKATA SHIGERU
IPC: E03B9/02
Filed: 1994-04-13
Abstract: PURPOSE:To gather foreign objects discharged to the outside of a distributing pipe easily while preventing the bound of a hose owing to the strong force of discharged water when the inside of the distributing pipe is washed by water discharged from a fire hydrant. CONSTITUTION:An intermediate joint pipe 4 with a fowmeter 6 and a water sampling port 7 is connected to a fire hose 3 bonded with a fire hydrant 1. A hose 5 having a bore larger than the fire hose 3 is connected to the intermediate joint pipe 4. A strainer section 10 consisting of a strainer 12 and a transparent pipe 11, in which the strainer 12 is housed, is joined detachably with the hose 5, and a cup 13 for sampling foreign objects is mounted removably at the drainage-side end section of the strainer 12.
Patent JP-H11270855-A (JP)
Title: Tempura oil overheating prevention sensor
Inventor: KOTANI TSUTOMU
IPC: F24C3/12
Filed: 1998-03-23
Abstract: PROBLEM TO BE SOLVED: To simply and easily process parts, to reduce the fluctuation of assembly machining accuracy and the costs of product, and to stabilize characteristics. SOLUTION: A sensor has a metal case 1 and a metal cap covering the case 1. At the same time, the case 1 is provided with bimetal being arranged inside the cap, a switch mechanism being driven by the inverse operation of the bimetal, and a ceramic case 16 that supports the bimetal and at the same time has the switch mechanism. In this case, a vertical groove 21 is provided along the longitudinal direction of the sensor, a tongue piece 20 that can be engaged to the vertical groove 21 is provided in the case 1, and the vertical groove 21 is engaged to the tongue piece 20 for preventing the metal case 1 and the ceramic case 16 from being rotated.
Patent JP-S63240580-A (JP)
Title: Toner recovering device
Inventor: FUKUDA MINORU
IPC: G03G21/10
Filed: 1987-03-27
Abstract: PURPOSE:To uniformize a toner in a toner recovering container by supporting a fitting part of the toner collecting container, so as to be freely turnable by a toner discharge pipe formed in the end part of a cleaning device, and also, providing an oscillation driving means on the toner recovering container. CONSTITUTION:A fitting part 20a of toner recovering container 20 is supported so as to be freely turnable by a toner discharge pipe 21, and also, on the side wall of the toner recovering container 20, a recessed part 20e is formed, and in this recessed part 20e, an eccentric cam 29 provided on a driving shaft 28 is placed. In this state, by a revolving shaft 11a of a separate carrying belt, the eccentric cam 19 rotates through the shaft 28, the toner recovering container 20 reciprocate around the toner discharge pipe 21, a toner in the toner recovering container 20 is fed to the right side end separated from the injection port 20C side of the toner recovering container 20, and the deposition of the toner in the injection port side is prevented. In such a way, the toner in the toner recovering container 20 can be contained from a uniformly deposited state or a position separated from the injection port 20C of the toner recovering container 20.
Patent JP-H10263932-A (JP)
Title: Electrolytic composite polishing method and device for long metal tube inner face
Inventor: KIRYU SADAHISA
IPC: B23H5/06
Filed: 1997-03-26
Abstract: PROBLEM TO BE SOLVED: To apply high-accuracy mirror-machining while pressing grinding tools to the inner face of a metal tube at a constant pressure by providing a silicone tube in a tool electrode, and introducing a fluid into the silicone tube. SOLUTION: Dry compressed air is fed into a through hole 13a from the rear end section of a rotary shaft 13 at the time of polishing with elastic grinding tools 20, and the air flows into a silicone tube 18 through the shaft hole 17a of a plug 17 to apply pressure to the silicone tube 18. The elastic grinding tools 20 are extruded in the radial direction by this pressure into contact with the inner face of a metal tube 6 at a constant pressure, and extremely high- accuracy polishing is obtained. The pressing force of the elastic grinding tools 20 can be optionally adjusted by the adjustment of the air pressure. Even when abrasion dispersion occurs on multiple elastic grinding tools 20, the dispersion can be absorbed by the elastic action of the silicone tube 18.
Patent JP-S61233694-A (JP)
Title: Growth factor contained in bovine spleen and method of isolating same
Inventor: HONJO TSUTOMU
IPC: C12N5/00
Filed: 1985-04-08
Abstract: PURPOSE:To obtain the titled factor suitable for making a serum-free medium, having specific molecular weight, isoelectric point, etc., by grinding bovine spleen and a salt solution, treating an extracted supernatant liquid with a weakly acidic cation exchanger and treating the resultant substance with heparin immobilized Sepharose. CONSTITUTION:A bovine spleen is ground in a salt solution (e.g., solution of salt having <= about 1.5 ms electric conductivity), an extracted solution is obtained by centrifugation, etc., subjected to salting-out with ammonium sulfate, dialyzed against 0.1M sodium phosphate buffer solution at 6.0 pH, brought into contact with a weakly acidic cation exchanger to adsorb a growth factor and a fraction containing the growth factor is eluted with 0.1M sodium phosphate buffer solution containing 0.6M salt at 6.0 pH. Then, the eluate is brought into contact with heparin immobilized Sepharose equilibrated at 7.0 pH to adsorb the growth factor, whichis eluted with a buffer solution having a high salt concentration to give the aimed growth factor having about 16,000-18,000 molecular weight, 9.5-10.5 isoelectric point and affinity for heparin immobilized Sepharose.
Patent JP-S57190617-A (JP)
Title: Filtering and concentrating apparatus
Inventor: YAMAGUCHI MIKIMASA
IPC: B01D29/62
Filed: 1981-05-15
Abstract: PURPOSE: To certainly release thin soft cake by permeating water between the cake adhered on a filter cloth net immersed in sludge and the filter cloth net.  
     CONSTITUTION: When service water sludge is charged into a sludge chamber 6 and a drain valve 24 is opened, said service water sludge is precipitated by own wt. and water is filtered into a filter chamber 22 through filter cloth nets 16, 17 and discharged through a filtrate discharge pipe 23. When cake is adhered on the surfaces of the filter cloth nets 16, 17 amd filtering capacity thereof is lowered, a discharge valve 12 is opened and a pump 11 is driven to discharge unconcentrated sludge in the sludge chamber 6 and, after discharging, the discharge valve 12 and the drain valve 24 are perfectly closed and, when water is supplied into a water passing pipe 18 and uniformly dropped into the filter chamber 20 between the filter cloth nets 16, 17 through a water supply port 19, water is dowardly flowed along the outer and the inner surfaces of the filter cloth nets 16, 17 in a film form and permeated between the cake and the filter cloth nets to reduce adhesion force of the cake to the filter filter cloth nets and the cake is fallen by own wt. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S57189462-A (JP)
Title: Manufacture of organic electrolyte battery
Inventor: IWAMARU FUTAYASU
IPC: H01M4/06
Filed: 1981-05-15
Abstract: PURPOSE:To suppress the spring back effect and prevent any expansion of an organic electrolyte battery by unifying an annular seat and a positive mixture containing acetylene black used as a main conductive auxiliary agent together by molding, and inserting thus molded body into a positive can by extruding that from a formation mold. CONSTITUTION:In constituting an organic electrolyte battery containing lithium used as a negative active material, a metal sulfide used as a main positive active material and acetylene black used as a main conductive auxiliary agent, an annular seat 1 made of a stainless steel and having a reverse-L-shape is set inside a cylindrical frame 13 of a metal mold 11, and a positive mixture powder is pressed with a pressing member 14 from the upside into a molded body so as to make a positive electrode 4. After that, a positive can 3 is made in contact with the upper end of the frame 13, and the positive molded body 4 is inserted into the can 3 by being pressed upward witha pressing member 15 and extruded from the metal mold 11. Consequently, the spring back effect of the positive electrode 4 can be suppressed, and any warp generation or intensity decrease of the electrode 4 can be prevented.
Patent JP-S60218661-A (JP)
Title: Electrophotographic sensitive body
Inventor: KUBO TAKASHI
IPC: G03G5/14
Filed: 1984-04-14
Abstract: PURPOSE:To prevent fluctuation of electric resistivity due to change in humidity by using substd. polyacetylene soluble in org. solvents. for an underlayer. CONSTITUTION:Substd. polyacetylene is used as a single resin component of the underlayer to be formed between a substrate and a photosensitive layer. Since polyacetylene is insoluble in org. solvents, and it cannot be applied, substituents, such as phenyl, benzyl, methyl, methoxy, carboxy, dimethylsilyl, or amino, are introduced to use its solubilized substd. product. When its substitution product is high in electric resistivity, it is doped with I2 or AsF5 or the like to lower its resistivity. When another undercoat layer formed by dispersing a metal or pigment is used in addition, or mirror finishing is executed, this undercoat layer is formed in a thickness of 0.2-10mu and when not, in a thickness of 5-40mu.