baber/WOPTO huggingface dataset:
Patent JP-S55119639-A (JP)
Title: Pulling and moving method for sheet material
Inventor: SATOU HIDENORI
IPC: B65H3/14
Filed: 1979-03-07
Abstract: PURPOSE: To transfer a sheet material smoothly without damage to it by forming a high speed air current by means of compressed air, by pulling the first sheet material to the supporter face and sending it in one direction by the air current and by pulling the second sheet material by a motion accompanied with the first motion.  
     CONSTITUTION: Two air jet devices 6 are brought close to the first sheet material 7a, compressed air is jetted from the airport. The first sheet material 7a is pulled by a high speed air current formed between the surface of the sheet material and the face of the air jet device, and is turned in the direction of the slit 4. Thus the first sheet material 7a is turned as it is pulled to the face 1 of the jet device. Next when the first sheet material 7a is relatively brought close to the second sheet material 7b, the second one is pulled to the first one by the accompanying motion and is turned in the same direction. Accordingly the desired number of sheet materials is smoothly transferred without damage to them by repeating the said operation. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H09220683-A (JP)
Title: Method for working round hole
Inventor: KINOSHITA TSUGIO
IPC: B23K26/382
Filed: 1996-02-14
Abstract: PROBLEM TO BE SOLVED: To improve the working accuracy of a round hole by removing bulging part which occurs at the time of working a round hole. SOLUTION: A circular locus K to be worked, the straight line L1 from a pierce C0 to a beginning point C1 existing outside the circular locus K to be worked, the straight lines L2, L3 from the beginning point C1 to the intersected points C2, C3 with the circular locus K to be worked on both sides of the straight line L and the straight line L4 from the beginning point C1 to an end point C4 existing within the circular locus K to be worked on the intersected point C3 side are previously assigned to a work W prior to working.  A working head for thermal cutting is then moved in order of the straight line L1 from the pierce 0 to the intersected point C1, the straight line L2 from the beginning point C1 to the intersected point C2, the circular locus to be worked from the intersected point C2 to the intersected point C3, the straight line L3 from the intersected point C3 to the biginning point C1 and the straight line L4 from the beginning point C1 to the end point C4, by which the work W is worked with the round hole H.
Patent JP-S60172124-A (JP)
Title: Matrix cathode
Inventor: MISUMI AKIRA
IPC: H01J1/15
Filed: 1984-02-17
Abstract: PURPOSE:To facilitate obtaining a highly uniform products of good quality in mass production process by forming a porous sintered nickel body with many laminated and sintered nickel foils, each having many minute holes. CONSTITUTION:A nickel foil in which many minute holes are made in honycomb-shape is formed by a photo-lithographic technique and such foils are laminated and fused together. For reducing the sintering temperature, placing a proper quantity of fine nickel powder between the foils to be laminated in the sintering is a good practice. A porous sintered body 2a thus obtained has not only an uniform void content but also has an advantage of allowing to freely control the void content by adjusting the hole size in forming the foils. The construction obtained in such a manner allows to control the initial characteristics in electron emission and is also effective in controlling the life characteristics.
Patent JP-H01207420-A (JP)
Title: Production of carbon fiber
Inventor: YAMAMOTO IWAO
IPC: C10C3/10
Filed: 1988-02-08
Abstract: PURPOSE:To obtain a carbon fiber having high strength, elastic modulus and elongation in high spinnability, by melt-spinning a specific meso-phase pitch and infusibilizing and carbonizing the spun fiber. CONSTITUTION:A raw material pitch is made to react with a crosslinking agent (preferably formalin, formaldehyde derivative, aromatic dihydric alcohol compound or aromatic dihalogen compound) and the reaction product is heat- treated and used as a meso-phase pitch. The obtained pitch is melt-spun at 290-410 deg.C and subjected to infusibilization, carbonization and, as necessary, graphitization to obtain the objective fiber.
Patent JP-S56124674-A (JP)
Title: Ignition timing controlling device for engine
Inventor: MOMOYAMA TSUTOMU
IPC: F02P5/155
Filed: 1980-03-03
Abstract: PURPOSE: To enable to obtain an appropriate ignition timing meeting with the operational condition of engine, by designing an ignition timing controlling device to be capable of changing the ignition timing from a given advance angle to a predetermined maximum advance angle and to delay the advance angle from the maximum  advance angle at a predetermined gradient.  
     CONSTITUTION: A signal coil produces the first and second rapidly changed angle signals (a), (b) having a small duration once for each one rotation of an engine at particular crank positions T 1 , T 2 . When the second angle signal (b) is given to the second FF circuit 14, the output terminal Q of the circuit 14 takes a high level, so that a capacitor 16 discharges at a current I 2 , where I 2 =(the high-level voltage of the FF circuit 14 - a reference voltage V 1 )/(resistance of a register 15). This discharge current I 2  is kept constant independently of the engine speed, if the high-level voltage of the circuit 14, the resistnce of register 15 and the reference voltage V 1  are constant. When the capacitor 16 discharges at the discharge current I 2 , the output voltage D of an operational amplifier 17 is lowered linearly at a predetermined gradient independently of the engine speed. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S59152636-A (JP)
Title: Static chucking device
Inventor: ITOU TSUTOMU
IPC: H01L21/68
Filed: 1983-02-21
Abstract: PURPOSE:To improve the absorption force, mechanical strength, and wearing resistance by selecting a dielectric material freely by a method wherein an electrode is adhered on a substrate with a flat surface by forming the electrode and the dielectric layer by flame spray or vapor deposition, and the upper surface of said electrode is covered with said layer. CONSTITUTION:An insulation layer 12 is formed on the substrate 11 by the flame spray of e.g. alumina. On said layer 12, two electrodes 13a and 13b are formed respectively by aluminum vapor deposition. The dielectric layer 14 formed by the flame spray of alumina is formed thereon. Plastic 15 is impregnated in said layer 14. The surface is processed to flatness by polishing, lapping, buffing, etc. Then, the sample 16 such as a semiconductor wafer is placed on said layer 14, and a DC power source 17 is connected between the electrodes 13a and 13b.
Patent JP-H03197469-A (JP)
Title: Preparation of 2-oxazoline derivative
Inventor: UMEZAWA JUNKO
IPC: B01J27/125
Filed: 1990-02-08
Abstract: PURPOSE:To highly simply, profitably prepare the subject compound useful as a raw material for drugs, agricultural chemicals, functional materials, etc., in a high yield without employing an expensive asymmetrical source, etc., by reacting an epoxide with a nitrile compound as raw materials in the presence of an acid. CONSTITUTION:An epoxide compound of formula I (R1 and R2 are H, 1-16C alkyl, phenyl or benzyl) is made to react with a nitrile compound in the presence of an acid catalyst such as hydrogen fluoride at -20 deg.C to 70 deg.C, especially 0 deg.C to 30 deg.C, to prepare a compound of formula II (R3 is 1-10C alkyl, phenyl or benzyl). The epoxide compound of formula I includes 1,2-epoxypropane and styrene oxide. The epoxide compound having optical activity is prepared by oxidizing an olefin with microorganisms. The nitrile compound includes acetonitrile and preferably employed in a ratio of 5-10 moles per of the epoxide compound.
Patent JP-H11228059-A (JP)
Title: Safety device for elevator entrance part
Inventor: YAMAMOTO KOJI
IPC: B66B13/26
Filed: 1998-02-09
Abstract: PROBLEM TO BE SOLVED: To provide a safety devicef or an elevator entrance part, which is capable of reducing injuries given by a door to a passenger near the threshold of an elevator car, preventing the closing of the door while baggage or the like carried in the elevator car is bulged out from the car, and easily reforming an exiting elevator without specifying a door system to a horizontal or vertical opening type. SOLUTION: A long-structured light projecting part 3 composed of a plurality of luminous bodies and a long-structured light receiving part 4 composed of the same number of light receiving bodies as that of the luminous bodyes are fixed to a side plate 7 located in the side face of a car 6, loaded between a pair of brackets 12 for covering the light projecting part 3 and the light receiving part 4, erected oppositely to each other and, when at least one receiving body detects light shutting-off, a door opening circuit is operated.
Patent JP-H03232104-A (JP)
Title: Writing corrector for magnetic recorder
Inventor: YOSHIOKA SADAO
IPC: G11B5/09
Filed: 1990-02-07
Abstract: PURPOSE:To allow the detection of the abnormality in a write correcting operation by providing a means for forming a correlation signal having a prescribed correlation characteristic with the delay control signal formed in a delay control signal forming means and a means for verifying the correlation of the delay control signal and the correlation signal. CONSTITUTION:This device has the means for correcting the writing by forming the delay control signal 104 which identifies the bit code pattern of a recording coding signal 102 and indicates the delay quantity corresponding to the adapted pattern thereof and by forming a magnetization inversion pulse 105 changes in pulse time interval so as to be adapted to a reproducing signal characteristic. Further, the means for detecting the abnormality in the writing correction operation by forming the correlation signal 106 having the predetermined correlation characteristic with the delay control signal 104 and verifying the correlation between the delay control signal 104 and the correlation signal 106 is provided. The prompt detection of the abnormality in the operation of the function to identify the bit code pattern and the abnormality in the operation of the function to form the delay control signal is possible in this way and the writing error by the fault of the writing corrector is prevented. The loss of the recording data by the writing error is decreased and the improvement in the reliability of the magnetic recorder is possible.
Patent JP-H08197381-A (JP)
Title: Automatic measuring device of cutting tool
Inventor: INAGAKI TAKEFUMI
IPC: G01B11/08
Filed: 1995-01-24
Abstract: PURPOSE: To provide an automatic measuring device of a cutting tool capable of automatically, easily and precisely measure dimension of the cutting tool. CONSTITUTION: This device is furnished with a laser diameter measuring instrument 3 capable of measuring a diameter of a cutting tool 6 with no contact, a motor 2 for tool pot rotation to rotate a tool pot holding the cutting tool 6 and a motor 4 to move up and down the laser diameter measuring instrument 3 to move the laser diameter measuring instrument 3 vertically against the tool pot 1, and it automatically measures tool length, the tool diameter and tool roundness of the cutting tool 6.
Patent JP-H03235606-A (JP)
Title: Terminal curing method for crosslinked polyethylene insulated cable core
Inventor: SUZUKI AKIRA
IPC: H02G1/12
Filed: 1990-02-07
Abstract: PURPOSE:To perform curing work easily in a short time by making cuts in a crosslinked polyethylene insulator, from the outer circumference to the conductor, at several points in the longitudinal direction. CONSTITUTION:A crosslinked polyethylene cable core 3 comprising a conductor 1 extrusion coated with a crosslinked polyethylene insulator 2 is wound around a drum and then the terminal thereof is rewound to be cured. A marginal length of l, which will be discarded finally, is ensured in the axial direction from the end face to the core body at the cable core terminal. Cuts are then made at several points in the longitudinal direction in the marginal part (l) of the crosslinked polyethylene insulator 2 at the cable core terminal by means of a chain saw or a band saw.
Patent JP-S57142512-A (JP)
Title: Gyro device
Inventor: HOUJIYOU TAKESHI
IPC: G01C19/38
Filed: 1981-02-27
Abstract: PURPOSE:To enable easy adjustment of the center of gravity of a gyro case and displacement in a center of viscosity force due to liquid, by mounting a means which changes a gap between a receptacle which houses liquid, and the gyro case from the outside of the receptacle. CONSTITUTION:A receptacle, enclosing a gyro case 1 and housing liquid 7, is divided into an upper and a lower part, and a tray-shaped member 27 mates the lower receptacle by means of an opening (2-4) and a key-shaped protrusion part (2-6) in the lower receptacle (2-2). A screw member 28 rotatively engages an  opening (2-5) in the lower receptacle (2-2) at a journal member (28-1), and a  screw part (28-2) is screwed in a screw part (27-4) of a tray-shaped member 27. Through the vertical movement of the tray-shaped member 27 by turning the screw member 28 corresponding to an error in bearing, a gap between the member 27 and the gyro case 1 is caused to change, and this causes changing of a flow of liquid 7 in the upper and lower gap of the gyro case 1. Thus, a center of viscosity force can be easily caused to coincide with the center of gravity of the gyro case 1.
Patent JP-H02208205-A (JP)
Title: Superconducting metal oxide material and production thereof
Inventor: SUZUKI MASAYUKI
IPC: C01G1/00
Filed: 1989-02-07
Abstract: PURPOSE:To obtain a superconducting metal oxide material having electronic conductivity by substituting only part of a metal element in matrix crystals consisting of metal oxides with another metal element having a higher valence than that of the metal element and calcining the resultant crystals. CONSTITUTION:A metal element (Nd) of matrix crystals (Nd2CuO4) consisting of metal oxides is partially substituted with another metal element (Ce) having a higher valence than that of the metal element to provide <=0.001 Ce/Nd. The resultant matrix crystals in which the Nd is partially substituted with the Ce are then calcined in a nonoxidizing atmosphere. One electron is added to one Ce atom thereby to impart electronic conductivity thereto.
Patent JP-S59153131-A (JP)
Title: Integrating sphere
Inventor: KONUKI HIDEO
IPC: G01J3/02
Filed: 1983-02-22
Abstract: PURPOSE:To make it possible to obtain an integrating sphere, which has sufficient sensitivity in a short-wavelength region and can be used effectively, by attaching a fluorescent material having diffusing property to the inner surface of the wall of the integrating sphere. CONSTITUTION:The inner surface of a wall 5', to which light is inputted, is coated by a fluorescent material, which emits fluorescent light having the wavelength relatively longer than the wavelength of the incident light. Said fluorescent material generally emits fluorescent light, whose wavelength is relatively long with respect to the wavelength of absorbed light. Therefore, when the incident light is the light having the considerably short wavelength and the attenuation in the integrating sphere is too much in the conventional standard, the fluorescent material absorbs the incident light, and the absorption coefficient of the fluorescent with respect to the long-wavelength light as fluorescent light emitted in return is very small. Therefore, the intensity of the incident light is not decreased to a large extent. Thus the sensitivity as the integrating sphare can be made extremely large.
Patent JP-H05227073-A (JP)
Title: Manhole antenna system and information communication system
Inventor: MUROI AKINORI
IPC: H04B10/00
Filed: 1992-02-14
Abstract: PURPOSE:To provide the information communication system using a sewerage and a manhole cover. CONSTITUTION:Part of a manhole cover 1 fitted on a sewerage is constituted of a dielectric 4. A dipole antenna 5 is provided in the dielectric and an optical fiber cable 10 as a communication channel is provided in the sewerage. The light signal sent from the optical fiber cable 10 is converted into an electric signal by an electric optic and optic/electric converter 8 and amplified by a high power amplifier 7, then radiated over the surface of a road 12 by the dipole antenna 5. The radio waves received by the dipole antenna 5 is amplified by a low noise amplifier 6, then converted into the light signal by the converter 8, and sent through the cable 10. Since the radio waves can be radiated near the road surface, the communication quality can be improved. The communication for buglar prevention and protection against disasters can be simplified.
Patent JP-S62187554-A (JP)
Title: Sampling apparatus for casting slab
Inventor: HIRATA KENJI
IPC: G01N1/08
Filed: 1986-02-12
Abstract: PURPOSE:To enable rapid sampling from casting slab by positioning a cutting apparatus as horizontal shifting at right-angled direction cutting section of carrying casting slab and cutting the base by a coaxial curved lever type cutter after notching as remaining a center cylinder by a reversed angle type center boring cutter. CONSTITUTION:The cutting apparatus 4 is shifted horizontally on rail 12 and positioned by a vertically moving device 6 at the right-angled cutting section under way of carrying high temp. casting slab 1. A tip 59 of the reversed angle type counter boring cutter 34 is used to notching-cut 71 as remaining the center cylinder 70 by turning of a cutter turning device 35 and by advancing of a horizontal shifting device 31. Next, the base of the cylinder 70 is cut 72 by working of a cutting driving device 32 under using a tip 51 of the coaxial curved lever type cutter 34. Therefore, sampling in the casting slab 1 is executed rapidly at any optional position in the end-face of the casting slab 1.
Patent JP-2000225599-A (JP)
Title: Core bit for boring composite material
Inventor: SAKOTA MICHIRO
IPC: B26F1/16
Filed: 1999-02-05
Abstract: PROBLEM TO BE SOLVED: To provide a core bit capable of making boring operations under approx. the same conditions without being influenced by the difference in the machining resistance between different layers when a composite material is to be bored. SOLUTION: A composite material of such a structure that two or more different materials are laminated alternately, and a core bit 1 approx. in a cylindrical form grinds and bores the composite while it makes rotating and presses the forefront, wherein the forefront is formed from a ring-shaped machining member 2 of hard substance in the shape of sawteeth. A set is provided on the cutting part of this ring-shaped machining member 2 so that the produced splash is turned in fine particles, and it is possible to perform the boring operation efficiently.
Patent JP-S52111307-A (JP)
Title: Protecting system for electronic switchboard
Inventor: INOUE SATOSHI
IPC: G06F1/00
Filed: 1976-03-16
Abstract: PURPOSE: To protect the main part of the electronic switchboard form the heat through the temperature detection. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H07240152-A (JP)
Title: Image display device
Inventor: OKAMOTO TAKIO
IPC: H01J17/49
Filed: 1994-02-28
Abstract: PURPOSE:To make a non-light emitting part, even when present among a number of display elements two dimensionally arranged to form a large screen, inconspicuous, and provide a reproduced image with high luminance having no distortion. CONSTITUTION:A number of display elements are two-dimensionally arranged to form a large screen. The display units forming the picture elements of each display element are arranged at equal intervals in line and column directions, and the line directional length or column direction length of the display units 20a, 20b, 20c in the peripheral part forming the line or column closest to the adjacent display element is set shorter than the line directional length or column directional length of the remaining display unit 21.
Patent JP-S57142519-A (JP)
Title: Calibrating method for electromagnetic level gauge
Inventor: SAKATA YUTAKA
IPC: G01F9/00
Filed: 1981-02-28
Abstract: PURPOSE:To perform a simple and precise calibration, by a method wherein a thin metal foil is used as a conductor generating a secondary magnetic field equivalent to a secondary magnetic field which emanates from a metal in a fusing condition. CONSTITUTION:A quasi fusing metal foil 6 is adhered to an insulating plate 5 such as wood or plastic. Aluminium, copper and the like are used as the metal foil 6 which is formed in a thickness having the degree of electric conduction equivalent to that of a fusing metal actually used with an electromagnetic type level gauge.
Patent JP-2000225424-A (JP)
Title: Joining method and joining device for metal plate
Inventor: MIYAZAKI MASAJI
IPC: B21D39/03
Filed: 1999-02-05
Abstract: PROBLEM TO BE SOLVED: To execute joining excellent in strength and appearance without developing cracks by clamping and fixing a planar part by the movement of a press plate, crushing a projected cylindrical part with a press plate and a punch, spreading the crushed part in a clearance formed between the punch and a punch plate and calking it till the clearance is filled up. SOLUTION: A joining member 11 and member 12 to be joined are superposed, the hollow cylindrical part 13 penetrates a through hole and, in a state where the cylindrical part 13 is downward projected, it is placed on a punch plate 17. The press plate 19 is lowered, the joining member 11 and member 12 to be joined are clamped and fixed between itself and the punch plate 17 and they are pushed down together the punch plate 17 against the elastic force of a spring 16. By crushing the projected end part of the hollow cylindrical part 13 between the press plate 19 and the shoulder part 15b, spreading in the outside clearance 18 and calking it, it is pressurized till the clearance 18 is filled up with the crushed part. In this way, the calking is executed by a simple process, the cracks are not developed and sufficient catching and bonding strength are obtained.
Patent JP-H04267107-A (JP)
Title: Dicing device
Inventor: KANDA TAKESHI
IPC: H01L21/301
Filed: 1991-02-22
Abstract: PURPOSE:To prevent the re-contamination of a work by reducing the generation of a mist while scattered cutting water is collected by a discharge nozzle and discharged to the outside of the work. CONSTITUTION:A dicing device 30 has a cover 40, which covers a spraying port 36 and a cutting edge 34 and a surface of which oppositely faced to a work 32 is opened, and a discharge nozzle 46 discharging cutting water scattered from the cutting edge 34 is formed to said cover 40.
Patent JP-H01205623-A (JP)
Title: Phase locked loop circuit
Inventor: SHIMASUE MASANORI
IPC: H03L7/10
Filed: 1988-02-12
Abstract: PURPOSE:To independently adjust the loop gain and the variance of a control voltage of a voltage controlled oscillator with low power consumption and at a high speed by providing an operational amplifier between a filter and the voltage controlled oscillator. CONSTITUTION:The phase of an input signal fed to an input terminal 18 and that of an output signal of a voltage controlled crystal oscillator VCXO 16 are compared by a phase comparator 10, after the phase comparison output is amplified to a degree of 1VPP, the result is formed into a DC voltage by a filter 14. The DC voltage is amplified to 2-3V by an operational amplifier 22 and fed to the VCXO 16 as a control voltage. The VCXO 16 is oscillated at a frequency corresponding to the control voltage. Since the power supplied to the operational amplifier 22 is very small, a low power consumption is attained and since the amplifier 20 has only to amplify the signal to an output of nearly 1VPP, the circuit is operated at high speed. Moreover, since it is possible to compensate the variance in the control voltage of the VCXO 16 by the offset adjustment of the operational amplifier 22, the adjustment is implemented independently of the gain adjustment of the operational amplifier 22.