baber/WOPTO huggingface dataset:
Patent JP-H01311514-A (JP)
Title: Composite billet
Inventor: TAGUCHI OSAMU
IPC: H01B12/04
Filed: 1988-06-09
Abstract: PURPOSE:To exhaust gas expanded at the time of heating a composite billet even if an oxide superconducting material or its material powder is used as a conductive material and obtain a good composite rod by hot extrusion molding by a method wherein a small hole for deairing is provided on a housing composing a composite billet. CONSTITUTION:A composite billet consisting of vessel 1 having a specific outer diameter end a cap 2 made of CuNi is prepared, and a small hole 21 for deairing having a specific diameter is made on this cap 2. A large number of bexagonal rods 4 as conductive materials are arranged and inserted into the vessel 1 of this composite billet. Then the cap 2 is pushed in into the opening of the vessel 1, which are manufactured into a composite billet not to allow the cap 2 to be come out of the vessel 1. Then this billet is put in a vacuum tank and evacuated to a specified level by operating an vacuum pump. Then the pressure in the tank is made to be 1 atm by feeding nitrogen gas, the composite billet is taken out from the tank, and it is immediately heated at a specified temperature.
Patent JP-S5264838-A (JP)
Title: Memory control system
Inventor: SAITOU KOUICHI
IPC: G06F12/00
Filed: 1975-11-26
Abstract: PURPOSE: The access is possible simultaneously with high using efficiency to one uni unit main memory for plural active mofules.  Thus, throughput can be extremely improved. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S5567352-A (JP)
Title: Dehydrator
Inventor: TAZAWA TAKASHI
IPC: B04B9/14
Filed: 1978-11-17
Abstract: PURPOSE: To prevent leakage of water from a rotating shaft by sealing a rotating shaft, through which a dehydrating tank is connected to a motor, with a chimney type sealing member and controlling the angular amplitude of the dehydrating tank.  
     CONSTITUTION: A dehydrating tank 3 is driven by a dehydrating motor 37 which is press-fitted into a tubular member 38 formed of a synthetic resin at the bottom of a water receiver 4. A elastic seal 40 is provided on the periphery of a rotating shaft 39 the top of which forms a tapered part 46. A screw part 43 having an angle θ of torsion is provided so as to screw against the rotation of the dehydrating tank 3. A boss part 45 at the lower part of the dehydrating tank 3 forms a tapered hole into which the tapered part 46 of the rotating shaft 39 can be fitted. At the lower part of the boss part 45 there is provided slightly smaller screw than the screw part 43 of the rotating shaft 39. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H09286673-A (JP)
Title: Production of porous body
Inventor: SUZUKI HISAO
IPC: C04B38/00
Filed: 1996-05-10
Abstract: PROBLEM TO BE SOLVED: To produce a porous body useful for a sound insulation material, etc., by effectively utilizing the waste sand and the slag, both of which are conventionally disposed as waste by subjecting waste sand discharged from a metal casting process and slag particles discharged from a cupola furnace to specific treatment. SOLUTION: In this production, waste sand discharged from a metal casting process and slag particles discharged from a cupola furnace are mixed in a weight ratio of e.g. 1:1 in the presence of water and thereafter, the resulting mixed material is charged into a forming mold to form a formed body, or granulated into granular formed bodies with a granulating machine. Then, the formed body or each of the granular formed bodies thus obtained is subjected to heat treatment at e.g. 1,000 deg.C for 4hr to fire the formed body and to produce the objective porous body. Alternatively, the waste sand and the slag particles are mixed in the presence of water and thereafter, the resulting mixed material is fired to form a fired material and then, the fired material is crushed and thereafter, the crushed material is screened to produce another type objective porous bodies.  The both type objective porous bodies thus produced have high gas and water permeability and also, high strength.
Patent JP-H038724-A (JP)
Title: Magneto-optical garnet
Inventor: HONDA YOICHI
IPC: G02F1/09
Filed: 1989-06-05
Abstract: PURPOSE:To obtain a magnetic garnet having a sensitivity constant increased with doped Bi and having decreased fluctuation of the sensitivity constant in practical temperature range by using Eu and Ho as components and specifying the composition. CONSTITUTION:The magneto-optical garnet is expressed by formula (Eu3-x-yHoxBiy)Fe5O12 (0.1<=x<=1.6; 0.5<=y<=2.0). The magnetic garnet has large Faraday rotation per unit magnetic field [sensitivity constant thetaF/MS (thetaF is Faraday rotation angle in saturated magnetic field; MS is saturated magnetic field], exhibits extremely small temperature dependency of the sensitivity constant in practical temperature range (250-350K) and is an excellent material for magnetic field sensor.
Patent JP-H11340226-A (JP)
Title: Manufacture of semiconductor device
Inventor: IKEDA SATOSHI
IPC: H01L21/3205
Filed: 1998-05-22
Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a semiconductor device, which is capable of preventing the generation of dishing of a conductive film, such as a Cu film embedded in a recess like a wiring groove and also effectively preventing the diffusion of constituent elements of the conductive film embedded in the recess, when the conductive film is embedded through an anti-diffusion film in the recess with the use of a polishing technique, such as CMP method. SOLUTION: Connection holes 8 and wiring groove 9 are made in an interlayer insulating film 7 on a semiconductor substrate 1, and thereafter a Ta film 10 as a first anti-diffusion film is formed over the entire surface of the substrate by a sputtering method or the like. Next, the Ta film 10 is polished by the CMP method to be left only in the interiors of the connection holes and wiring grooves 9. Subsequently, a TiN film 11 as a second anti-diffusion film is formed on the entire surface of the substrate by the sputtering method or the like, and a Cu film for wiring formation is formed as sufficiently thick on the TiN film by an electroplating or the like to be completely filled in the connection holes 8 and wiring grooves 9.  Next, the Cu film and TiN film 11 is polished by the CMP method to be left only in the interiors of the connection holes 8 and wiring grooves 9, thereby forming a Cu wiring 14 as a dual damascene wiring.
Patent JP-H036801-A (JP)
Title: Voltage-dependent nonlinear resistor
Inventor: TAKADA YOSHIO
IPC: H01C7/12
Filed: 1989-06-05
Abstract: PURPOSE:To optimize forming conditions of first and second layers and to improve environmental resistance with long life by providing a polycrystalline mixed high resistance layer having a specific thickness and made of zinc silicate, zinc antimonate and bismuth on the side face of a voltage-dependent nonlinear resistor body, and a glass layer having a specific thickness outside the resistance layer. CONSTITUTION:A polycrystalline mixed high resistance layer having an average thickness of 5-30mum and made of zinc silicate, zinc antimonate and bismuth oxide is formed on the side face of a voltage-dependent nonlinear resistor body 1 which contains zinc oxide as a main ingredient and is made by molding a material containing bismuth oxide and then baking it, and a glass layer 4A having 20mum or more of thickness is formed outside the resistance layer. Since the resistance layer 3A having a predetermined thickness and the layer 4A are formed on the side face of the body 1, the surface of the resistor is densified, breakdown strength is increased, and moisture resistance is improved.
Patent JP-S5474259-A (JP)
Title: Tension control apparatus for continuous rolling mill
Inventor: WATANABE FUMIO
IPC: B21B37/48
Filed: 1977-11-24
Abstract: PURPOSE:A generating torque of a rolling motor and a rollng pressure is each filtered by respective specified function. The filtered values and an acceleration- deceleration torque of rolling motor are combined to caculate rolling torque. This means is incorporated into an apparatus to provide an accurate tension control and high repsonse. CONSTITUTION:While a material to be rolled is engaged by a first rolling stand 2, a motor generating torque caculator 5 calculates a generating torque Gm. A filter 20 treats the Gm to provide a filtered value Gme. A detector 6 for motor rpm detects motor rpm N. A differentiator 7 differentiates the rpm N by a function including differentiating operator S. The obtained value is coeffient-multiplied 7 to provide an acceleration-deceleration torque Gae and a torque loss Gl. The Gme, Gae and Gl are put in an adder 9 where a rolling torque Ge is calculated. Meanwhile, a load cell 10 derects a rolling pressure P, which is put in a filter 21 to calculate rolling pressure Pe. The rolling torque Ge and the rolling pressure Pe are used for calculation of an erroneousless stand-to-stand tension T thereby effectuating precise tension control.
Patent JP-S5665928-A (JP)
Title: One shot uniform heating method for surface of stepped shaft
Inventor: NISHIMURA TOSHIFUMI
IPC: C21D9/28
Filed: 1979-11-02
Abstract: PURPOSE:To heat easily the surface of a stationary stepped shaft uniformly at one shot, by heating the larger diameter part of the stepped shaft for a prescribed time with a shield member inserted between the smaller diameter part of the stepped shaft and a heating coil, then by withdrawing the shield member. CONSTITUTION:A shield member 3 made of material of high electric conductance is inserted along a gas between the external periphery of the smaller diameter part 2b of a stepped shaft 2 and an induction heating coil 1. In such a situation, the application of electric current to the induction coil 1 allows to continue the heating of the larger diameter part 2a, but the smaller diameter part 2b is hardly heated because it is covered with the shield member 3. After a prescribed time, the shield member 3 is withdrawn out of the induction coil 1 by the displacement of a rod 5 caused by the operation of a cylinder 4, hereby the smaller diameter part 2b is heated with the magnetic flux generated by the coil 1. This method facilitates one shot uniform heating of the surface of stationary stepped shaft 2.
Patent JP-S5845385-A (JP)
Title: Deep embedded type electrode device for preventing galvanic corrosion due to external power supply
Inventor: SUGITA SHIGEYOSHI
IPC: C23F13/00
Filed: 1981-09-10
Abstract: PURPOSE:To make current generated at an anode uniform and to facilitate exchange of anode by inserting an insoluble anode into the conductive liquid filled in a protecting pipe, and packing carbon backfill on the outer side of a conductive insoluble material fitted onto the protecting pipe. CONSTITUTION:A deep well 1 for installation of an electrode is bored with a boring machine, and a steel sleeve pipe 7 is connected in series and inserted to the well 1. A PVC protecting pipe 3 having plural openings 2 is connected to said pipe by means of a coupling and a protecting pipe 3 having no openings 2 is connected thereto in the same way and is inserted into the pipe 7. A conductive insoluble material 8 such as pipe-like solid graphite is connected and fitted onto the outside part of the openings 2. Plural insoluble anodes 4 are suspended at equal intervals perpendicularly in the pipe 3, and conductive liquid 9 such as under ground water is filled in the pipe 3. Carbon backfill 6 is packed in the spacing between the material 8 and the pipe 7 and the spacing between the pipe 7 and the well 1. In this device, the anodes 4 are exchanged simply by pulling lead wires 11 up.
Patent JP-H086113-A (JP)
Title: Camera
Inventor: AOTO KAZUAKI
IPC: G03B15/05
Filed: 1994-06-23
Abstract: PURPOSE:To provide a camera capable of reducing camera-shaking while making a shutter speed fast in strobe photographing, with respect to a camera capable of photographing with a stroboscope. CONSTITUTION:The camera is constituted of a photographic lens 21 forming the image of the optical image of an object, a spatial light modulating element 10 which is arranged in the optical axis of the lens 21, reflects a luminous flux entering from the lens 21 and can change the direction of the reflected luminous flux to the first direction and other directions, a photosensitive member 23 arranged in the first direction, a driving means 24 driving the spatial light modulating element 10 in the first direction only during a previously set exposure period and other directions except an exposure period, as the direction of the reflected luminous flux, a stroboscope means 26 flashing for illuminate an object and a synchronizing means 25 synchronizing the exposure period with time that the emitted light quantity of the stroboscope means 26 is maximum.
Patent JP-H0810811-A (JP)
Title: Device for changing back-up roll
Inventor: UCHI MASAMI
IPC: B21B31/10
Filed: 1994-06-23
Abstract: PURPOSE:To exactly change upper and lower back-up rolls by a simple mechanism by incorporating a pressure reducing circuit in a roll supporting frame and an oil hydraulic mechanism. CONSTITUTION:By operating a cylinder 8, the fixed lower back-up roll 1 is placed on a truck 4 and transported to a temporary position in a housing 10 together with the upper back-up roll 6 which is stacked up above the lower back-up roll 1 through a roll supporting frame 5 and in a position where is offset by the quantity of X in the advancing direction from the position of the lower back-up roll 1. Next, by operating a circuit 15 for low-speed operation, the upper and lower back-up rolls 1, 6 are advanced in the interior of the rolling mill at a low pressure with the hydraulic cylinder 8. The roll supporting frame 5 is elastically deformed in the axial direction, a chock 6a is pressed against the housing 10 and further the chock 1a of the lower back-up roll 1 is pressed against the housing 10. Further, the gaps between the arm parts of the chocks 1a, 6a of the upper and lower back-up rolls 1, 6 and the housing 10 become zero. In this way, the play of the back-up rolls 1, 6 in clamping mechanisms are eliminated.
Patent JP-S6462007-A (JP)
Title: Oscillator circuit
Inventor: EDOWAADO FURANSHISU KURIKAN
IPC: H03B5/36
Filed: 1988-06-10
Abstract: PURPOSE: To eliminate noises and to keep the duty cycle of almost 50% by providing a 1st amplifier having an input and an inverted output, device connected between the input and inverted output of the 1st amplifier for generating and amplifying a sine wave, and device for converting this sine wave to a specified rectangular wave. CONSTITUTION: This circuit is provided with the 1st amplifier device composed of a power source line 10, 1st reference voltage 12 and transistors 14, 16 and 18 and the device for generating the rectangular wave in proportion to the difference between the center of voltage swing of the sine wave, of which the duty cycle is amplified, and the reference voltage 12 from the sine wave. A certain type of external feedback element such as crystal is connected between the terminals of the 1st amplifier device and applies the sine wave to be amplified by this amplifier. Then, transistors 20 and 22 convert the sine wave signal to the rectangular wave signal, of which the duty cycle is 50%, and further amplify this signal. Thus, the noise can be prevented and the characteristics of almost 50% duty cycle can be provided.
Patent JP-H09327172-A (JP)
Title: Switching power supply apparatus
Inventor: SASAKI JUNICHI
IPC: H02M7/217
Filed: 1996-06-04
Abstract: PROBLEM TO BE SOLVED: To improve power factor by widening the conducting angle of an input current and suppressing a peak current. SOLUTION: An AC power input from an AC power supply 1 is converted to primary DC power with a diode bridge 2, part of the power is input to a series circuit of a primary winding of a transformer Ts of a subconverter 3 and a transistor Qs, and the transistor Qs is switched simultaneously or alternately with a transistor Qm of a main converter 4 by means of switching pulses from a switching control circuit 5. AC power induced to the secondary winding of the transformer Ts is rectified with a diode D1, DC power charged to a capacitor C1 and primary DC power are respectively synthesized through diodes D3 and D2, and a current is supplied from the one having a higher voltage to a series circuit of the transistor Qm and the primary winding of a transformer Tm1 of a main converter 4. Power factor of power input to the subconverter 3 is almost 1, the power factor of the whole of the power supply apparatus can be greatly enhanced.
Patent JP-2000332255-A (JP)
Title: Thin-film transistor and manufacture thereof
Inventor: HOTTA MASAYOSHI
IPC: H01L29/786
Filed: 1999-05-21
Abstract: PROBLEM TO BE SOLVED: To provide a thin-film transistor together with a method of its manufacturing, which is advantageous in a low-voltage operation of improved switching characteristic and is responsible to miniaturization by reducing the off-current of a thin-film transistor to the utmost, while on-current is effectively increased without adding complicated processes in the manufacturing. SOLUTION: A thin-film transistor comprises a gate electrode 7 formed on the side surface of a protruded part consisting of insulating films 5 and 6 formed on a semiconductor substrate 1, a gate insulating film 8 formed on at least the surface of the gate electrode 7, and a semiconductor layer 9 formed covering the semiconductor substrate 1 and the protruded part via the gate insulating film 8, where the semiconductor layer 9 is provided with a channel region 91 positioned on the side surface of the gate electrode 7 and heavily- doped impurity regions 93 and 94, in regions adjacent to the channel region 91.
Patent JP-H07313047-A (JP)
Title: Production of bread
Inventor: SUMI TOMOYUKI
IPC: A21D8/06
Filed: 1994-05-19
Abstract: PURPOSE:To provide a method for producing bread, by which the fermentation with a yeast is promoted by using nutrient components contained in a vegetable fermentation liquor, in especially fermenting a dough; the complete fermentation of the blended materials is realized therein and even any compounded materials can always be baked into the uniform bread rich in texture, flavor, touch feeling and elasticity. CONSTITUTION:This method for producing bread is to continuously carry out a fermenting step for injecting a vegetable fermentation liquor in an adequate amount required for kneading into blending materials containing grain flour as a base and a yeast, kneading the resultant mixture and fermenting the resultant mixture, a step for forming the fermented dough and a baking step.
Patent JP-H04366424-A (JP)
Title: Method for initializing optical disk
Inventor: OKUBO SHUICHI
IPC: G11B7/30
Filed: 1991-06-14
Abstract: PURPOSE:To achieve an improved and uniform initialization by forming a crystal particle with a same particle diameter as that at an annular crystal portion around a recording bit which is formed at the time of recording at an entire phase-change type optical disk. CONSTITUTION:A focusing laser beam 2 is sent in radius direction in synchronization with rotation of a disk and is emitted to a disk. At this time, a power level of the laser beam 2 is set so that a recording layer of the disk is melted. A molten crystallization region 22 is formed at one portion of a pregroove in a state where the disk is turned in one revolution. By feeding the laser beam in radius direction in synchronization with the revolution and forming the molten crystallization region 22 continuously in concentrical shape or spiral shape, a molten crystallization region 22 is formed uniformly at a projecting portion 11 of the pregroove portion and a recessed portion 12 and a crystal with a same particle diameter as that around a recording point can be formed over an entire optical disk.
Patent JP-S6123402-A (JP)
Title: Differential amplifier circuit
Inventor: GOTOU KUNIAKI
IPC: H03F3/45
Filed: 1984-07-11
Abstract: PURPOSE:To apply the titled circuit even to a digital signal by providing each transistor representing a symmetrical current characteristic to each load circuit of a differential amplification transistor (TR) so as to output a signal current of the same sign even when there is a difference between input signals. CONSTITUTION:An input voltage difference V2 is impressed to differential amplification TRs Q1, Q2. When the voltage difference V2 is within a range A, the Q1 is turned off, the relation of IC1=0 is obtained, the Q2 is turned on and the relation of IC1=1 is obtained. In this case, a base current of a Q3 is drawn because of the IC2, the Q3 is turned on and an output current I0 is outputted in the saturated state. In this case, a Q4 is turned off. When the V2 is within a range B, the I0 is decreased linearly. Further, when the V2 is within the range C, the relation of I0=0 is obtained. When the V2 is within a range D, the I0 is increased linearly. When the V2 is within a range E, the I0 is saturated. Thus, when the input voltage is equal, the Q3, Q4 are turned off and when there is any difference between input voltages, a positive current I0 is outputted independently of the sign.
Patent JP-H021956-A (JP)
Title: Method of formation of insulating film
Inventor: KIMURA MASATOSHI
IPC: H01L23/522
Filed: 1988-06-09
Abstract: PURPOSE:To lessen an inter-wiring capacitance and to decrease the generation of a potential in a wiring part by a method wherein ions are implanted in an insulating film and the dielectric constant of the insulating film is reduced. CONSTITUTION:A first wiring part 2 is formed on a semiconductor substrate 1 formed with a semiconductor circuit and an insulating film 3 is formed on this. Oxygen ions, for example, are implanted in the film 3 to form an insulating film 3a and a second wiring part 4 is formed on the film 3a. By implanting oxygen ions in the film 3, a lattice defect is generated in the film 3a and the dielectric constant of the region of the film 3a is reduced. Thereby, each coupling capacitance in the wiring parts 2 and 4 can be lessened and a potential, which is induced in the wiring part 4, can be decreased.
Patent JP-S5844906-A (JP)
Title: Endless rolling method for stretch reducer
Inventor: MIZUNUMA SUSUMU
IPC: B21B17/14
Filed: 1981-09-11
Abstract: PURPOSE:To prevent the thickening phenomena at the preceding and succeeding ends of pipes by coupling preceding and succeeding base pipes while running  both pipes in the axial direction thereof between a reheating furnace and a  stretch reducer. CONSTITUTION:In the stage of reducing the metallic base materials heated in a reheating furnace with a stretch reducer, first a cylinder 33 which is threaded on inside and outside surfaces is put on the preceding end of a successing SR base pipe 1'. The part thereof is compressed by a compressing machine to the diameter smaller than the inside diameter of a preceding base pipe 1''. The preceding end part of the pipe 1' compressed by the cylinder 33 put thereon is inserted into the succeeding end part of the pipe 1'', whereby a coupled part is formed. The coupled part is compressed with a compressing machine to the diameter smaller than the outside diameter of the SR product. It is effective to cool the coupled part forcibly by water cooling or the like. Thus the tension during rolling is maintained always in the state in which the pipes are rolled in all stands and the thickening phenomena are prevented.
Patent JP-S5667645-A (JP)
Title: Viewing device for rear dead angle for automobile
Inventor: KITAHATA YOSHIO
IPC: B60R1/10
Filed: 1979-11-02
Abstract: PURPOSE:To confirm the rear part of a car body through its under part by providing a mirror at the under part of bumper. CONSTITUTION:A mirror 4 is attached in a freely withdrawing or projecting manner to the under part of a bumper A, and also a mirror 12 is attached to the upper part of a window. Thus, the right back of car body can be confirmed with the naked eye through the under part of the car body.