baber/WOPTO huggingface dataset:
Patent JP-H01310527-A (JP)
Title: Manufacture of sintered tantalum body
Inventor: KURITA JUNICHI
IPC: H01G9/04
Filed: 1988-06-09
Abstract: PURPOSE:To reduce defects in a dielectric coating film, to reduce leakage current, and to make it possible to obtain a high reliability in life characteristic tests by a method wherein a sintering operation is conducted by providing a substance, which possesses a strong affinity with oxygen, in a sintering atmosphere. CONSTITUTION:Tantalum powder 6 is pressure-molded into a cylindrical shape in such a manner that a tantalum anode lead is buried, and when the molded material is going to be sintered, one or two or more kinds of elements selected from carbon, silicon, titanium, aluminum and magnesium, having strong oxygen affinity in a sintering atmosphere when compared with tantalum, is provided. Then, a sintered body is obtained by sintering the material under high vacuum. Accordingly, a tantalum sintered body, which is low in oxygen density and surrounded by the substance, having strong affinity with oxygen in the atmosphere of the sintering process, the oxygen absorbed into the tantalum surface, and the oxygen contained in a tantalum metal, can be obtained. Consequently, defects in the dielectric coating film are reduced, leakage current is decreased and a high reliability in life characteristic tests is obtained.
Patent JP-H10337025-A (JP)
Title: Control method for pwm cycloconverter
Inventor: ISHII SADAO
IPC: H02M5/27
Filed: 1997-05-30
Abstract: PROBLEM TO BE SOLVED: To provide a control method for a cycloconverter which is a power converter having high voltage utilization rate in which high order harmonics are eliminated from the input current and the output voltage during rated speed operation. SOLUTION: A PWM cycloconverter 130 outputting an arbitrary DC/AC voltage is controlled by connecting each phase of an AC power supply 101 directly with each phase on the output side through a bidirectional switch having self-extinguishing capacity and then subjecting the AC power supply voltage depending on an output voltage command. PWM operation is performed at the time of accelerating/decelerating the output frequency and when the AC power supply frequency and the AC power supply voltage match the output frequency and the output voltage, respectively, switching operation of the bidirectional switch in the PWM cycloconverter 130 is stopped. A specific bidirectional switch is kept in ON state while other bidirectional switch is kept in OFF state selectively and the PWM cycloconverter 130 is operated directly with the AC power supply.
Patent JP-H07309193-A (JP)
Title: Gas generator for side face collision protective device
Inventor: RIHIYARUTO BENDERU
IPC: B60R21/26
Filed: 1995-05-02
Abstract: PURPOSE: To make a gas generator for an air bag useful as a side impact protector in a vehicle very simple in structure and very small in whole size. CONSTITUTION: This gas generator has a flange for attaching the gas generator to a part of the vehicle, in particular to the backrest of a vehicle seat, and for attaching the air bag. The gas generator also has a propellant tank 20 which is sealed fluid-tight and acts as a combustion chamber. The propellant tank 20 is arranged concentrically in a housing 10 so that an annular chamber 32 is formed between the housing 10 and the propellant tank 20 to allow afterburning. The annular chamber 32 can be connected to the inside of the propellant tank 20 through flow connecting parts 34-40 which open as a result of the burning process, and to the inside of the air bag through an outlet aperture 42 formed on the surrounding wall 12 of the housing.
Patent JP-H0433813-A (JP)
Title: Method for forming tube with film
Inventor: MATSUMIYA TOSHIHARU
IPC: B29L23/00
Filed: 1990-05-30
Abstract: PURPOSE:To firmly make a thin film and a tube into an integral body without deforming their shapes by a method wherein metal bars are inserted in a tube from above and below so as to apply high frequency under the condition that high-frequency weldable resin material is interposed between the metal bars and, at the same time, to compress the resin material further until the gap between the metal bars becomes the predetermined distance. CONSTITUTION:A tube 11 is inserted in a tubular high-frequency insulator 2. Next, bar-like molds 3 are arranged from above and below the tube 11 so as to insert the molds from above and below in the tube 11. In this case, high-frequency weldable resin material 12 is interposed between the molds 3. And high frequency is applied between the molds 3 and, at the same time, the material 12 is compressed until the gap between the tips of the molds 3 becomes the predetermined gap. As the resin material 12, high frequency Weldable thermoplastic resin is used. The compression with the molds 3 is performed until the gap between the tip of the upper mold 31 and that of the lower mold 32 becomes equal to the thickness of a thin film 13 to be formed. Thus, the resin material 12 under molten state is spread and can be formed in the shape of film.
Patent JP-S61291601-A (JP)
Inventor: CHIYAARUZU MAACHIN KANIA
IPC: C08F220/00
Filed: 1986-06-17
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H01311951-A (JP)
Title: Automatic open-and-close control device for platform door
Inventor: HAMADA HIDEO
IPC: B61B1/00
Filed: 1988-06-09
Abstract: PURPOSE:To surely operate a vehicle door and a platform door by disposing a ground light emitting device and a ground photodetector on a platform and disposing a photodetector on a vehicle and a light emitting device on a vehicle on the lower side surfaces of a vehicle. CONSTITUTION:Ground light emitting devices 6, 6 and ground photodetectors 7, 7 are installed in such a manner that the light ray does not reach an opposite platform 21 by a travelling beam 20 which is a monorail. By this arrangement, light modulation wave will not overreach. Photodetectors 13, 15 on a vehicle and light emitting devices 17, 17 on a vehicle are installed on the lower sides of a vehicle 22 corresponding to the light emitting devices 6 and the photodetector 7 on the ground. As light is used as information, an optical transmission path is positioned below the travelling beam, so as to be completely isolated from the opposite line side not to overreach and to ensure fail-safe.
Patent JP-S5665211-A (JP)
Title: Positioning control unit
Inventor: SHIMOO SHIGERU
IPC: G05B11/36
Filed: 1979-11-02
Abstract: PURPOSE: To position accurately a shifting component such as a magnetic head to an objective component such as a magnetic disc by forming a compensating delay signal through using a phase advancing filter.  
     CONSTITUTION: A track 11 of a disk 10 vibrates radially due to eccentricity etc. of the rotation shaft of the disk 10. This positional variation is output from a demodulator 21 through a head 20 as a positional error signal 102. An adder 22 adds the signal 102 to a delay signal 103 which is output of a signal delay device 23, and outputs to the delay device 23 as a delay signal 104. That is, the delay signal 103 is an integral of the positional error signal 102 up to before one rotation of the disk 10. Then, the signal 103 becomes a compensating delay signal 105 through a phase advancing filter 24. Further, it is added to the signal 102 to become a driving signal 106 and applied to a driving device 28. Thus, positioning can be performed accuately even when the delay of the driving device is great. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S5935098-A (JP)
Title: Ferroelectric thin film
Inventor: ADACHI HIDEAKI
IPC: C30B29/22
Filed: 1982-08-17
Abstract: PURPOSE:To improve the electro-optical effect of a ferroelectric thin film for opto-electronic use composed of oxides of Pb, Ti and La, by setting the molar ratio of Pb to Ti within a specific range. CONSTITUTION:Powdery oxides of Pb, Ti and La are mixed together, calcined, and sputtered by using the powder as the target to form a thin film on a substrate such as the C-face of sapphire. In the above process, the molar ratio of Pb to Ti is adjusted to 0.65<Pb/Ti<0.90. The electro-optical effect of the resultant ferroelectric single crystal thin film can be improved, and a film suitable as a light-switching material can be obtained.
Patent JP-S5666200-A (JP)
Title: Excitation controller for rotary machine
Inventor: YAMADA TSUTOMU
IPC: H02P9/14
Filed: 1979-11-02
Abstract: PURPOSE:To improve the voltage control of a system in stability by reducing the shock given to a power generator with overexcitation limit signal supplied via a graded waveform shaping circuit. CONSTITUTION:When the signal representing the difference between the allowable field current corresponding to the pressure of the inside of the cooling gas for a power generator 1 whose current is outputted from an allowable field current setting circuit 12 and an actual fields current gets larger than a set value, a relay 14 works to open a contact 31b. Thereby, an operation amplifier 16 integrates the difference signal using a time constant corresponding to the difference signal. When the output signal of the amplifier 16 has exceeded the value set by a setting device 18, the relay 20 works so that the difference signal is fed as overexcitation limit signal to an automatic voltage adjuster 4 via the graded-waveform shaping circuit. Thereby, the shock given to the generator 1 can be reduced upon the supply of overexcitation limit signal.
Patent JP-S6121921-A (JP)
Title: Preparation of magnetic powder
Inventor: MARUYAMA YASUMASA
IPC: C01G49/00
Filed: 1984-07-10
Abstract: PURPOSE:To extract and collect fine magnetic particles of ferrite having uniform quality by heat-treating and crystallizing amorphous body consisting fundamentally of hexagonal ferrite component in particularly sufficient O2 atmosphere. CONSTITUTION:Necessary amt. of H3BO4, BaCO3, Fe2O3, TiO2, and CoO for resulting specified weight ratio of Fe2O3 as ferrite component of Ba ferrite as fundamental component of hexagonal ferrite, TiO2 and CoO as substituting component for reducing coercive force, and BaO, B2O3 as components for forming glass, are weighed and mixed thoroughly. After melting the mixture by heating at 1,350 deg.C, it is equenched by pouring onto a quickly revolving water-cooled twin rolls to obtain amorphous body. Then, the amorphous body is held at 550 deg.C (point A: temp. for forming crytal nuclei of glass forming material such as B2O3- BaO, etc.) for a specified time to proceed the reaction slowly. The atmosphere is kept to contain >=23wt% O2 by supplying O2 forcibly at the above described temp., and the crystallized product is crushed by rotation to form crystal seeds uniformly. Then, the product is treated with dil. acid to remove BaO.B2O3, etc. by dissolving, thus, fine particles of Ba-ferrite is extracted and separated.
Patent JP-H11342701-A (JP)
Title: Wheel cover assembly
Inventor: HOGAN SCOTT A
IPC: B60B7/06
Filed: 1999-05-24
Abstract: PROBLEM TO BE SOLVED: To reduce rigidity of a composite wheel assembly by arranging a sealant extending between the annular rim, a spider and decorative applique. SOLUTION: A one-liquid type sealant 66 is arranged so as to extend between the annular rim 12, a spider 24 and decorative applique 46. The sealant 66 is desirably formed by using silicon as a base. The sealant 66 is not required to fill up a space 67 between the decorative applique 46, the annular rim 12 and the spider 24, and is only required to extend to the edge periphery of the decorative applique 46 to prevent a pollutant from entering the space 67. The decorative applique 46 can be formed as a small rigidity thing by using this sealant. The decorative applique 46 can move by a large displacement quantity before a composite wheel assembly 10 comes off from the annular rim 12.
Patent JP-H05332846-A (JP)
Title: Thermistor and its manufacture
Inventor: NUMATA MAKOTO
IPC: G01K7/22
Filed: 1992-06-03
Abstract: PURPOSE:To obtain a thermistor in a cube or a rectangular parallelopiped with improved solder heat resistance having electrode layers on both end faces by forming the electrode layers on both surfaces of a plate-shaped sintered body and performing cutting vertically and horizontally from a direction which is vertical to the electrode layers. CONSTITUTION:Ag paste is coated on the upper and lower surfaces of a plate- shaped sintered body 2a and then calcination is made to form each electrode thick film layer 4. Then, Ni paste is coated on it and calcination is made, thus forming Ni thick film layer 4. Then, a paste such as Ga is coated on it and calcination is made, thus forming a compound formation layer 6 with Ni. Further, Sn-Pb paste is coated on it and heat treatment is made. thus forming Sn-Pb thick film layer 7. Then, a calcination body 2a is cut vertically and horizontally by a dicing saw etc., thus obtaining a thermistor 1 with an electrode layer 3 having the electrode thick film layer 4, the thick film layer 5, the compound formation layer 6, and the thick film layer 7 on both end faces of the thermistor calcination body 2 in rectangular parallelopiped shape. With this configuration, solder heat resistance can be improved and resistance characteristic deviates less.
Patent JP-S6040586-A (JP)
Title: Cassette tape storing device
Inventor: SUZUKI KIYOSHI
IPC: G11B33/04
Filed: 1984-07-10
Abstract: PURPOSE:To improve the portable performance of a cassette tape by forming a storing part for cassette tape at the side part of the housing of an electrical device. CONSTITUTION:Recessed parts 3-5 opening through the front and top faces are formed to the side wall of a housing 1 of an electrical device using a cassette tape 12. Thus a head part 12a containing a stepped part 12b of the tape 12 can be inserted through an opening part of said top face. Then projected bars 9-11 formed at the front opening part are engaged with the part 12b. Thus the tape 12 can be stored in the parts 3-5.
Patent JP-H01312637-A (JP)
Title: System controlling detection of processor runaway
Inventor: UCHIUMI ATSUHIKO
IPC: G06F11/00
Filed: 1988-06-11
Abstract: PURPOSE:To control a controlled device on a safe side at the runaway time of a processor by controlling a control input output circuit and preventing a control signal for the controlled device when a runaway detection circuit has detected the runaway of the processor. CONSTITUTION:When the runaway detection circuit 3 has detected the runaway of the processor 1, the control input output circuit 4 is controlled and the transmission of the control signal from the processor 1 to the controlled device 2 is prevented. Thus, the controlled device 2 maintains the control state of the processor 1 immediately before the detection of runaway by preventing the control signal with respect to the controlled device 2 by the runaway detection of the processor 1. Since the control state of the controlled device 2 is prevented from changing by the initial resetting of the processor 1 or the like, the malfunction of the controlled device 2 can be prevented.
Patent JP-H11337415-A (JP)
Title: Radiation temperature detecting element
Inventor: HONDA YOSHIAKI
IPC: G01J5/10
Filed: 1998-05-25
Abstract: PROBLEM TO BE SOLVED: To provide a radiation temperature detecting element whose standby time is eliminated and which can measure a temperature stably in a noncontact manner even under a condition under which an atmosphere temperature is changed. SOLUTION: A cap 3 which is made of, e.g. a metal and which is in a nearly recessed shape is connected, in the outer circumferential edge on one face of a stem 1, to the stem 1 to which leads 2 formed so as to be passed to the side on the other face from the side on one face are molded integrally. The stem 1 and the cap 3 constitute a space 4. Then, an opening part 3a is formed in the recessed bottom face of the cap 3. An infrared transmitting filter 5 is sealed in the opening part 3a. A package is constituted. Then, an infrared detecting element 6 is arranged on the stem 1 inside the space 4 in which the infrared transmitting filter 5 is situated at an angle of view. In addition, the leads 2 are used as output terminals of the infrared detecting element 6.  In the form of this execution, thermistors 7 as temperature detecting elements which detect temperatures of respective parts are attached to the stem 1, the cap 3, the infrared transmitting filter 5 and the infrared detecting element 6.
Patent JP-H11335648-A (JP)
Title: Acrylic adhesive composition and adhesive sheet
Inventor: MIYASHITA HIROSHI
IPC: C09J151/00
Filed: 1998-05-25
Abstract: PROBLEM TO BE SOLVED: To provide an acrylic adhesive composition not sticky even at high temperature in summer, exhibiting high adhesiveness even at low temperature in winter, and having high adhesiveness even to highly polar adherends such as metal plates at the same low production cost as that of a conventional acrylic adhesive composition, and to provide an adhesive sheet having excellent adhesiveness to olefinic substrates and not floated or peeled even from an adherend mainly having a curved surface by using the acrylic adhesive composition. SOLUTION: This acrylic adhesive composition contains a graft/block copolymer obtained by subjecting an acrylic polymerizable composition containing a peroxide vinyl monomer or multifunctional polymerization initiator to a multistage polymerization. In the multistage polymerization, the rate of the graft or block copolymer produced by the second and following stage polymerization reactions to the polymer produced by the first stage polymerization is >=40 wt.%.
Patent JP-H0712684-A (JP)
Title: Digital controller
Inventor: MURAKAMI MASAKI
IPC: G01M17/007
Filed: 1993-06-15
Abstract: PURPOSE:To obtain safety and controllability of a system to be controlled even in the case of a malfunction at a processor side while forming a system for applying a control command directly to the system to be controlled by a direct input/output interface and to eliminate doubling of the system. CONSTITUTION:An arithmetic processor 3 and a system 9 to be controlled are digital controllers for directly transferring a control signal through a direct input/output interface 15. The interface 15 insulates a signal transfer to the processor 3 with photocouplers 21, 22, stores a control command to be applied from the processor 3 to the system to be controlled as a counted value of a reversible counter 35, and maintains a present state of the system by the counter 35 at the time of a system malfunction of the processor side. Contents of the counter 35 are increased/decreased by manually operated switches 31, 32 to continue the control of the system. A power source is doubled to eliminate down of the power source.
Patent JP-S5844435-A (JP)
Title: Microfilm copying machine
Inventor: SUZUKI KAZUHIRO
IPC: G03B27/04
Filed: 1981-09-11
Abstract: PURPOSE:To know the dirty degree of an optical system and to correct the quantity of light, by comparing the output of a detector for the light of an exposure lamp with a reference value. CONSTITUTION:While a microfilm 2 is not set, a controller 13 receives a digital light-quantity signal from a photosensor 6 through an amplifying and converting circuit 10 to calculate the difference from the reference amount of exposure, thereby storing variation in the quantity of light of a light source due to the dirty state in the machine and the replacement, etc., of a lamp 1. Then while the film 2 is set, the controller 13 receives a digital light-quantity signal from a photosensor 7 through the circuit 10 to calculate the difference from the stored  digital light-quantity signal, thus finding the density of transmitted light of the  film 2. Then, the controller 13 outputs the voltage of the lamp 1 for the adequate amount of exposure to a lamp voltage controlling circuit 11 on the basis  of variation in the quantity of the light source, the density of transmitted light  of the film 2, and data from a magnification setter 12.
Patent JP-S5569849-A (JP)
Title: Multiplication control system
Inventor: TAKESHITA HIDEO
IPC: G06F7/52
Filed: 1978-11-22
Abstract: PURPOSE: To shorten a processing time by fixing the number of times of repetitive arithmetic of an arithmetic circuit by detecting significant digits requiring arithmetic among digits of a multiplier and multiplicand and then by alternating between the multiplier and multiplicand so that the multiplier has a less number of digits.  
     CONSTITUTION: A multiplier and multiplicand inputted to signal lines 11 and 12 are inputted to decoders 13 and 14 and selectors 18 and 19, and outputs of decoders 13 and 14 are compared each other by comparator 17. Next, this comparison result and the output of selector 20 connected to decoders 13 and 14 are supplied to selectors 18 and 19, where a comparison in the number of significant digits between the multiplier and multiplicand is made and the decision result is supplied to multiplier circuit 10. Further, the output of selector 20 is inputted to multiplier circuit 10 by way of substracer circuit 26, repetitive control counter 28 and zero detector 30 for repetitive arithmetic by circuit 10, thereby outputting an arithmetic output from shifter 35. In this way, arithmetic of one with less significant digits between the multiplier and multiplicand is carried out, so that a processing time can greatly be shortened. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S6035971-A (JP)
Title: Single-phase induction motor
Inventor: YOKOTA MITSUO
IPC: H02P1/42
Filed: 1983-08-04
Abstract: PURPOSE:To shorten the operating time to the completion of start by connecting a heating positive temperature coefficient thermistor in parallel with a thermal switch, and thermally coupling it to a starting positive temperature coefficient thermistor. CONSTITUTION:When a thermal switch 4 is OFF, a heating positive temperature coefficient thermistor 7 becomes heated state (high resistance state). Since the thermistor 7 heats a starting positive temperature coefficient thermistor 3, the temperature of the thermistor 3 becomes approx. 80 deg.C that reaches Curie point. When the switch 4 becomes ON, the thermistor 7 stops heating. Simultaneously, large current necessary for starting is flowed to a main winding 1 and an auxiliary winding 2, thereby starting the rotation. Then, the thermistor 3 is self- heated to exceed the Curie point, thereby completing the starting.
Patent JP-H01312598-A (JP)
Title: Electronic musical instrument
Inventor: KATO HITOTSUGU
IPC: G10H1/00
Filed: 1988-06-10
Abstract: PURPOSE:To add a natural and abundant musical expression in accordance with strength for picking a string by bringing a characteristic of a musical tone whose sounding is started by a musical tone generating means or a musical tone which is sounding to variable control in accordance with pitch variation information and velocity information. CONSTITUTION:When a input waveform signal is started to be detected by picking a string, a pitch extracting means 2 extracts successively pitch information, based thereon, and simultaneously, a velocity extracting means extracts velocity information. In this state, based on the pitch variation information, a musical tone control means 3 controls a characteristic of a musical tone whose sounding is started by a musical tone generating means 6 or a musical tone which is sounding, for instance, a tone color (in addition, a sound volume, and moreover, a sound pitch are applicable), and simultaneously, it is controlled by the velocity information, as well. In such a way, an abundant musical performance expression can be added to the musical tone.