baber/WOPTO huggingface dataset:
Patent JP-S55117946-A (JP)
Title: Flaw detection method of hollow shaft inside surface
Inventor: TANI TAKAYUKI
IPC: G01N21/954
Filed: 1979-03-06
Abstract: PURPOSE:To make it possible to inspect the inside surface of a hollow shaft on the basis of change of the light receiving quantity by irradiating the light beam of a narrow flux onto the hollow shaft inside surface and by receiving the reflected light beam. CONSTITUTION:Optical inspection head 2a is inserted into hollow shaft 10, and simultaneously, inspection light generation unit 3a and signal processing unit 6 are started. The inspection light generated from inspection light generation unit 3a is projected onto the inside surface of hollow shaft 10 through mirror 3b, mirror system 3c, and lens system 3d, and the refelection pattern of the inside surface of hollow shaft 10 at this time is obtained by signal processing unit 6. By this reflection pattern, existence of flaw can be detected.
Patent JP-H01201100-A (JP)
Title: Semi-insulating gallium arsenide single crystal having low dislocation density
Inventor: KURIHARA TORU
IPC: H01L21/208
Filed: 1988-02-05
Abstract: PURPOSE:To obtain the above single crystal having decreased dislocation density by impurity hardening effect, by adding Cr and Al in the production of a GaAs single crystal by a boat method or a liquid encapsulated pulling-up method. CONSTITUTION:A GaAs single crystal is produced by a boat method or a liquid encapsu lated pulling-up method. In the case of, e.g., a boat method, a quartz boat containing a seed crystal and a raw material Ga together with Cr and 10<17>-10<20>cm<-3> of Al is placed at one end of a reaction tube made of a quartz glass. After placing As at the other end, the reaction tube is sealed. The tube is inserted into e.g. a tandem electric furnace, etc., and the temperature of the tube is maintained to >=1,200 deg.C at the boat-side and to about 600 deg.C at the As-side. After the completion of the GaAs synthesis reaction, the boat-side temperature is further raised while keeping the As-side temperature unchanged and the temperature in the furnace is controlled in such a manner as to keep the seeding part at the melting point of GaAs (1,238 deg.C) and increase the temperature toward the side of the boat main body at a temperature gradient of about 1 deg.C/cm. After melting a part of the seed crystal, the reaction tube is cooled at a rate of 1 deg.C/hr while keeping the above temperature gradient until the whole molten liquid is solidified to obtain the above single crystal.
Patent JP-H08222258-A (JP)
Title: Fuel cell power generation device
Inventor: ITO MAKOTO
IPC: H01M8/04
Filed: 1995-02-15
Abstract: PURPOSE: To provide a fuel cell power generation device which is downsized and whose cost is reduced by making a discharge device also serve as a discharge function of a fuel cell and an intermediate capacitor. CONSTITUTION: A fuel cell power generation device is provided with a pressure raising chopper 2A and an inverter 3 on the output side of a fuel cell 1. A discharge device 20 also serving as restraint to open circuit voltage of the fuel cell 1 is arranged in an intermediate circuit on the output side of the pressure raising chopper.
Patent JP-S56123512-A (JP)
Title: Broad angle zoom lens
Inventor: NANJIYOU YUUSUKE
IPC: G02B13/04
Filed: 1980-03-05
Abstract: PURPOSE:To obtain the lens with 2 times zoom ratio and 63 deg. picture angle and various aberrations corrected excellently, by satisfying the prescribed conditions, in the lens system of 6 group 7 lens constitution consisting of concave meniscus lens, concave lens, two convex lenses, concave meniscus lens, and convex meniscus lens, in the order from the object side. CONSTITUTION:In the lens system of 6 group 7 lens constitution consisting of the front group of concave meniscus lens, concave lens, and convex lens, and convex lens, jointed concave meniscus lens with convex lens and concave lens, and convex meniscus lens in the order from the object side, the conditions of equations (1)-(4) are satisfied, where n5, n6 are refractive index of the convex and concave lenses of the 5th group, fII is the synthesized focal length of the rear group, d9+d10 is the synthesized thickness of the 5th group, r10 is the radius of curvature of the joint plane of the 5th group, and r11 is the radius of curvature of the plane at image side of the 5th group. Thus, the zoom lens with about 2 times the zoom ratio and about 63 deg. picture angle of wide edge and excellently corrected various aberrations can be obtained with a simple constitution.
Patent JP-S58143242-A (JP)
Title: Detector for leaking gas
Inventor: SHINOHARA KOUJI
IPC: G01N21/39
Filed: 1982-02-19
Abstract: PURPOSE:To detect the leakage of explosive or other dangerous gases by providing light emitting elements for radiating IR light and visible light together with a photodetector in the low temp. part of an electron cooling element and connecting a light reflection means for introducing the above-mentioned two beams of light to said photodetector into one body. CONSTITUTION:The laser light radiated from a laser element 2 through a light transmission window 10 in an arrow (a) direction is emitted roughly in parallel with the visible light from the element 25 and is reflected by a retroreflector 31 supported by a supporting member 30 provided at the distance l from the window 10. The reflected laser light returns in roughly parallel with the visible light to an arrow (b) direction and is photoelectrically converted by a photodetector 3. The electric signal is introduced into a signal processing unit 17. If dangerous gases G exists in the form of crossing the optical path shown by the arrows (a), (b), the IR rays are ought to be absorbed at the different wavelengths respectively specific to these gases; therefore, the gases can be discriminated by the operation of a signal processing unit 17. The leakage of extremely dangerous gases such as explosive gases and toxic gases are discovered early and disastrous accidents are prevented.
Patent JP-H01203123-A (JP)
Title: Silo for asphalt mixed materials
Inventor: SAKUMA HIROSHI
IPC: B65G65/46
Filed: 1988-02-09
Abstract: PURPOSE:To mix surely these mixed materials by arranging at the lower part of the inside of a tank a pair of screw conveyers horizontally and also, in parallel, and providing the 3rd screw conveyer which transports asphalt mixed materials flowing out of these conveyers and makes them converge on a discharge opening. CONSTITUTION:Asphalt mixed materials are transported horizontally in the same direction as they are being stirred in a tank 1 by means of the 1st and 2nd screw conveyers 5, 6. Next, the mixed materials flowing out of these 1st and 2nd screw conveyers 5, 6, are transported toward the discharge opening at the lower end of the tank 1, located in the middle of the 1st and 2nd screw conveyers 5, 6, by means of the third screw conveyer 8 which is arranged in a crossing shape at the lower part of the lower stream side of these screw conveyers 5, 6. Lastly, at this discharge opening 9, asphalt mixed materials are made to converge and are mixed and discharged out of the tank 1.
Patent JP-H11212549-A (JP)
Title: Music box
Inventor: HASEGAWA KATSUZO
IPC: G10F1/06
Filed: 1998-01-24
Abstract: PROBLEM TO BE SOLVED: To easily mount memorial evidence, etc., when the music box is purchased by providing a protection cover detachably on the top surface of a lid body part. SOLUTION: On the top surface of the lid body part 3, the protection cover 4 is mounted detachably to protect an arbitrary part on the top surface of the lid body part 3. This protection cover 4, made of plastic, is transparent on the whole, rectangular in conformity with the shape of the lid body part 3, and large enough to protect the center part of the top surface of the lid body part 3. Then a projection piece having an outward directed claw part is provided facedown almost in the center between both lengthwise end parts.  On the top surface of the lid body part 3, on the other hand, a protection surface which is nearly as large as the protection cover 4 is formed of a frame and on this protection surface, a fitting-in part in which the protection piece of the protection cover 4 can be fitted is provided at the position corresponding to the projection piece when the protection cover is placed on the protection surface.
Patent JP-H03232718-A (JP)
Title: Device for synthesizing ammonia by plasma reaction
Inventor: HAYANO HIDEAKI
IPC: C01C1/04
Filed: 1990-02-05
Abstract: PURPOSE:To efficiently synthesize ammonia by disposing a hydrogen peroxide water tank between a plasma reaction section and an exhaustion section and subjecting the plasma of nitrogen gas and hydroperoxide water as a hydrogen source to an interfacial reaction to produce the ammonia. CONSTITUTION:A gas supply section 20, a plasma reaction section 30 and an exhaustion section 40 are disposed and a hydrogen peroxide water tank 7 is further disposed between the reaction section 30 and the exhaustion section 40 to constitute an ammonia synthesis apparatus. The reaction system is evacuated to a high vacuum with a vacuum pump 12 and nitrogen gas is charged into a reaction oven 5 of the plasma reaction section 30 through a gas bomb 1. High frequency electric current produced from a high frequency electric power oscillated with a high frequency oscillator 10 is discharged into a reaction oven 5 to provide nitrogen plasma. Nitrogen molecule ions in the nitrogen plasma are sputtered to the hydrogen peroxide water tank 7 to generate hydrogen atoms, which interfacially react with nitrogen plasma to synthesise ammonia.
Patent JP-S54120114-A (JP)
Title: Car traction device
Inventor: SAIMA TOORU
IPC: B61D15/00
Filed: 1978-03-09
Abstract: PURPOSE:To provide a car traction device wherein keep plates are rotated in response to the operation of a piston cylinder thereby to improve the safety of the device. CONSTITUTION:Keep plates 25, 26, 27 and 28 are constituted to rotate through toggle links 33 and 34 in response to the operations of piston cylinders 35 and 36. By the above described construction, even when the fluid pressure of a piston cylinder is removed by some trouble or other, the keep plates are prevented from unpreparedly rotating and releasing the holding of front wheels of the car, and troubles can be completely prevented and the safety of the device can be improved.
Patent JP-H06244233-A (JP)
Title: Wire bonding method and device by solder wire
Inventor: TAKAHASHI HIROYUKI
IPC: H01L21/60
Filed: 1993-02-16
Abstract: PURPOSE:To enable the wire bonding step using a solder wire to be performed easily and without fail in ball to ball wire bonding mode by a method wherein an upward flow of an inert gas or an oxidation-reducing gas is formed in a capillary tool part. CONSTITUTION:A capillary tool 22 with a solder wire 21 inserted therein is arranged above a work such as a lead frame 10, etc., and then an upward flow 15a of an inert gas or an oxidation-reducing gas is formed in the tool 22 part. Next, the ball part 21a on the lower end of the wire 21 is bonded onto the first bonding part of the work 10. Next, the protruded part of the wire 21 from the lower end of the tool 22 is melted down by approaching to a heat melting means 24 so as to form another ball part 21b on the end of the melted down wire piece 21. Finally, after forming the ball part 21a on the lower end of the wire 21, the ball part 21b is to be bonded onto the second bonding part.
Patent JP-H06238893-A (JP)
Title: Liquid-drop jetting device
Inventor: SUZUKI MASAHIKO
IPC: B41J2/045
Filed: 1993-02-16
Abstract: PURPOSE:To enable an effective stable deformation of walls of a piezoelectric material through the application of driving voltage, and thereby enhance the reliability of jetting of liquid-drops by specifying a distribution of thickness of driving electrodes formed on each side surface of walls of a piezoelectric material. CONSTITUTION:Electrode layers having a distribution of thickness of + or -50% or below with respect to the average thickness of a film are formed as driving electrodes on the each side surface of walls of a piezoelectric material, whereby an actuator is composed of a plurality of grooves 22 acting as flow passages of ink and pressure chambers for jetting of liquid-drops, and a plurality of walls 21 of a piezoelectric material in which driving electrodes 25 are formed for the application of voltage in a part of both side surfaces. This device is also composed of the actuator 2 and an ink introduction hole 16 stuck to the actuator 2, a cover plate having an ink manifold 18 and a nozzle plate 14 having a plurality of nozzles connected to the actuator 2 formed therein for jetting of ink drops.
Patent JP-S56124216-A (JP)
Title: Manufacture of outside case for oil-immersed electric apparatus
Inventor: AOKI AKIRA
IPC: H01F27/02
Filed: 1980-03-04
Abstract: PURPOSE:To simplify the positioning and cramping when the welding of a base plate to the outside case for the oil-immersed electric apparatus is to be performed and to contrive to enhance the reliability of welding and the producibility of the outside case of the oil-immersed electric apparatus by a method wherein the positioning of the base plate is performed from the inside of a wavelike sideplate. CONSTITUTION:An upper sideplate 2 having a flange 2a is welded to the cylindrically formed wavelike sideplate 1, and a lower sideplate 3 protruding thereof a flange 3a toward the inner circumference is welded. When the base plate 4 is inserted from the inside of the wavelike sideplate 1 as shown with an arrow mark 9, it comes in contact with the flange 3a being guided with the inside wall of the lower sideplate 3. By performing the welding in this condition, positioning and cramping are simplified, and the reliability of welding and the producibility can be enhanced. Moreover by the way mentioned above, the automatic feeding of base plate, the automation of welding can be also performed.
Patent JP-S56122744-A (JP)
Title: Paper feeder of printing machine
Inventor: ISHIKAWA HIROYUKI
IPC: B65H7/04
Filed: 1980-03-03
Abstract: PURPOSE: To feed a sheet of paper only when it is correctly positioned, by providing a device which senses whether or not the paper is in its correct position and shifting the paper backward when it is not in the correct position.  
     CONSTITUTION: Above a paper feed plate 11 for guiding a sheet of paper 1, are provided paper feed tapes 14, a plurality of vertically movable tape retaining rollers 21 and a detector 31 for detecting whether or not the paper 1 is correctly positioned. Further, paper returning rollers 33 placed almost on a same plane at that of the paper feed plate 11 and driven always toward a backward direction and returning rollers 37 are provided. When the paper 1 is placed in a correct position, the tape retaining roller 21 is pressed to the paper feed tape 14, and simultaneously the retaining roller 37 is lifted to perform paper feed operation. When the paper 1 is not in a correct position, the retaining roller 21 is lifted, and simultaneously the retaining roller 37 is pressed to the paper returning roller 33 to return the paper backward. In this way, paper feed operation can be surely performed. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H1143216-A (JP)
Title: Powder classification-supply device
Inventor: KIRIKIHIRA KATSUHITO
IPC: B65G33/08
Filed: 1998-02-09
Abstract: PROBLEM TO BE SOLVED: To provide a powder classification-supply device which is simple construction and which is capable of supplying only powders having the particle size over a fixed value. SOLUTION: The lower part of a casing 1 is opened, and a wire mesh 3 having a specified mesh size is mounted to the opening. Both ends of a screw shaft 2 are supported on the casing 1. A collecting hopper 4 which surrounds the opening part of the casing with its upper part and extends downward, is mounted to the lower part of the casing 1. Powder-materials 5 are supplied from a supply port into the casing 1, and are moved in the inside of the casing 1 by rotation of the screw shaft 2. In this case, the materials the particle size of which is less than the mesh size, are discharged by the wire mesh 3 into the collecting hopper 4, and the powders having the particle size over a fixed value, are sent out from the outlet as a product 6.
Patent JP-S62184215-A (JP)
Title: Ball joint
Inventor: TSUJI TATSUYOSHI
IPC: F16J15/52
Filed: 1986-02-10
Abstract: PURPOSE:To increase separation resistance of a dust cover by disposing a thick lip having a projected stopping swollen portion on one end of the dust cover, and forming an underfill portion fitted to the swollen portion, which is connected to a housing circular groove. CONSTITUTION:A circlip 20 is mounted on the outer periphery of a large- diameter end portion 22 of a dust cover 21, and the end portions of the circlip are bound tight on a circular groove 13 formed on the outer periphery of a housing 11. A thick lip 23 having a stopping swollen portion 24 projected annularly is formed on the outside diameter side of the axial end surface of the end portion 22. An underfill portion 14 fitted to the swollen portion 24 is continuously formed on the opposite side to the opening of the circular groove 13 of the housing 11. Accordingly, the swollen portion 24 of the thick lip 23 formed on the end of the dust cover cooperates with the underfill portion 14 connected to the housing circular groove 13 to increase the separation resistance of the dust cover from the housing circular groove 13.
Patent JP-S60172812-A (JP)
Title: Discharge circuit
Inventor: SATOU TETSUO
IPC: H03K4/08
Filed: 1984-02-17
Abstract: PURPOSE:To attain ease of circuit integration and to perform completely the discharge of an electric charge at high speed by connecting a bipolar transistor (TR) and an MOSTR discharging respectively a stored electric charge in a capacitor in parallel driven with the 1st and 2nd control signals between both the edges of capacitor. CONSTITUTION:The discharge circuit 3 is formed with the bipolar TRQ1 turned on at high speed in response to the 1st control signal P1 and the MOSTRQ turned on while an electric charge is stored in the capacitor C1 by the 2nd control signal P2. Thus, the electric charge stored in the capacitor C1 is discharged rapidly by using the TRQ1 with small ON-resistance, and when a difference in a VCE(sat) (difference between the forward voltages of a diode comprising the base emitter junction and a diode comprising the base and collector generated by the difference in the common base current amplification factor when the TR is driven in the saturation region) of the TRQ1 takes place, it is turned off and the residual electric charge is discharged completely by the TRQ2, then the stored electric charge is discharged at high speed completely.
Patent JP-S53112489-A (JP)
Title: Landing cable unit start end from submarine cable laying boat and laying boat used in practice
Inventor: YAGI MASAJI
IPC: E02F5/10
Filed: 1977-03-14
Abstract: PURPOSE:To enable an operation of carrying out a start end of the cable unit with a braking method ofsthe cable unit miniaturized, without a different drive source and transmi ssion method required, by means of commonly using a pressurized water source for injecting a water to the blade underwater to rotate the brake drum, with that for grooving and laying part.
Patent JP-S56123189-A (JP)
Title: Separating circuit for interpolated multiple signal
Inventor: YOKOYAMA TAKEO
IPC: H04N9/78
Filed: 1980-03-04
Abstract: PURPOSE:To eliminate cross color by applying a signal across a voltage-dividing load to the intermediate load point of the anti-resonate coil of an output transducer when separating a luminance signal and color signal by using an ultrasonic solid delay line. CONSTITUTION:The output of voltage-dividing load 4 connected to antiresonate coil 5 coupled with input transducer 3 of ultrasonic solid delay line 2 is supplied to level adjusting circuit 8. On the other hand, antiresonate coil 9 is coupled with output transducer 3' and loads 10 and 10' are connected to both the terminals of this coil 9. Then the output of level adjusting circuit 8 is coupled with the middle point between loads 10 and 10'. Thus, the variation in bias current of the emitter follower is prevented owing to the variation in the volume value of level adjusting circuit 8 due to a loss of delay line 2, so that the generation of cross color can be eliminated.
Patent JP-H07232649-A (JP)
Title: Steering device for vehicle
Inventor: YAMAMOTO YOSHIMI
IPC: B62D1/184
Filed: 1994-02-25
Abstract: PURPOSE:To provide a steering device for a vehicle, which can effectively absorb component force in the horizontal direction at a secondary collision generated in a steering column when a driving occupant comes into collision with a steering wheel. CONSTITUTION:This steering device for a vehicle is constituted so that a upper bracket 4 connected to a steering column 5 is supported with a vehicle body 1 movably in the horizontal direction, the lower end part of a lower shaft 20 is connected to the upper end part of a shaft 21 through a universal joint 50, a bearing bracket 6 journaling the shaft 21 rotatable centering around the shaft is rotationally movably supported with a vehicle body 10, and an intermediate shaft 8 having a flexible contractible body 8a is connected to the lower end part of the shaft 21 through a universal joint 51. When a column jacket 22 is moved in a body in the horizontal direction at secondary collision, the bearing bracket 6 is rotationally moved centering around a shaft 7a, and in addition the lower shaft 20 is moved in a spline tube 19, so as to allow movement of the column jacket 22 in the horizontal direction.
Patent JP-H03234842-A (JP)
Title: Exothermic tape
Inventor: TANAKA KUNIO
IPC: D03D15/00
Filed: 1990-02-08
Abstract: PURPOSE:To obtain an exothermic tape capable of efficiently covering even an article having small flexural radius by arranging a yarn-like body obtained by blending a discontinuous metal wire with a heat-resistant fiber in a warp direction and arranging a heat-resistant yarn in weft direction and weaving a metal wire of electrode as a weft. CONSTITUTION:A yarn-like exothermic element 2 obtained by blending discontinuous metal wire with a heat-resistant fiber is arranged in the direction of warp and a heat-resistant yarn is arranged in the direction of weft to weave these yarns into a woven fabric having a narrow width being 0.5-30cm in the width D(cm). Yarn is woven using a metal wire 3 of electrode as weft in intervals L(cm) (where (r) is linear resistance OMEGA/cm or heat generating element 2; (d) is arrangement density/cm of generator) expressed by the formula 447.2(d/r)<1/2>-70.7(d/r)<1/2> and watt density of parallel wiring part of the generator is set to 0.05W/cm<2>.
Patent JP-H06282919-A (JP)
Title: Recording and/or reproducing device using discoid recording medium
Inventor: INATANI AKIHISA
IPC: G11B17/22
Filed: 1994-01-31
Abstract: PURPOSE:To miniaturize the disk recording and/or reproducing device equipped with a housing unit capable of housing many disks and to accurately detect whether or not the disk is housed and held by a disk holding part provided on the housing unit with a simple mechanism. CONSTITUTION:This device is equipped with the housing unit 2 housing many disks, a recording and/or reproducing unit 3, on which one disk D housed and held by the disk holding parts 6 and 8 provided in many sets on this housing unit 2 respectively is selectively mounted, and a carrier mechanism 42 for carrying the selected disk D to the recording and/or reproducing unit 3. By providing this carrier mechanism 42 with the mechanism 55 for detecting whether or not the disk D is housed by the disk holding parts 6 and 8 provided on the housing unit 2, the presence of the disk is detected at the time of the carrier operation of the disk D.