baber/WOPTO huggingface dataset:
Patent JP-S5614723-A (JP)
Title: Zero-cross type solid switch using photothyristor
Inventor: MIURA SHIYUNJI
IPC: H03K17/78
Filed: 1979-07-17
Abstract: PURPOSE:To secure the off operation of a photothyristor while preventing a transistor from being applied with a puncture voltage by making use of the constant-current effect of FET. CONSTITUTION:Photothyristors SCR1 and SCR2 are connected in common at cathodes and anodes of SCR1 and SCR2 are connected to output terminals A and C of the switch circuit respectively; and collectors of transistors TR1 and TR2 are connected to gates of SCR1 and SCR2 and while drain D1, gate G1 and source S1 of (n) channel FET1 are connected to terminal A, cathodes of SCR1 and SCR2, and the emitter of TR2, drain D1, gate G2 and source S2 of FET2 are connected to terminal C, cathodes of SCR1 and SCR2, and the emitter of TR1. Further, resistance R1 is connected between the emitter and base of TR2, R2 is connected between the emitter and base of TR1, and resistances R1 and R2 are connected via resistance R3. Then, SCR1 and SCR2 are driven by light emission diode PD.
Patent JP-S5214465-A (JP)
Title: Frequency measuring device
Inventor: MARUMO YOSHIHARU
IPC: G04D7/00
Filed: 1975-07-24
Abstract: PURPOSE: To be able to measure pulses of different frequencies easily in the same circuit according to the frequency of an oppressed measuring pulse, and by adjusting the calculating time of a clock pulse automatically by its degree of stabilization and by selecting the standard calculating time of a pulse. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S60233698-A (JP)
Inventor: MOTOMURA TOMOMI
IPC: G10L25/00
Filed: 1984-05-07
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-S60234942-A (JP)
Title: Sliding contact device
Inventor: FUJISHIMA SUSUMU
IPC: C22C5/02
Filed: 1984-05-07
Abstract: PURPOSE:To improve the wear resistance of a brush and a commutator or a slip ring forming a sliding contact device by specifying the compositions of alloys for the constituent parts. CONSTITUTION:A brush is made of an alloy obtd. by adding 0.5-10wt% in total of Si and Zr to a conventional alloy consisting of 30-50wt% Au, 20-40wt% Ag and 20-40wt% Pd without changing the ratio in the composition. A commutator or a slip ring is made of an Ag-3-12%Cu alloy or an Ag-3-12%Cu- <=5%Cd alloy. The resulting brush and commutator or slip ring have superior wear resistance, and a sliding contact device manufactured by combining them produces very little dust due to wear, hardly generates noise, and has low and stable contact resistance.
Patent JP-2000287491-A (JP)
Title: Controller for induction motor
Inventor: OMORI YOICHI
IPC: H02P21/24
Filed: 1999-03-31
Abstract: PROBLEM TO BE SOLVED: To prevent generation of transient such as an overcurrent, rapid acceleration and deceleration, etc. by providing a third speed estimating means which causes a DC current to flow in the reverse direction to a current caused to flow in the case of a second speed estimating means, and estimates the rotational angular frequency and residual flux vector of an induction motor by the same method as the second speed estimating means, as for those other than the direction. SOLUTION: If the rotational angular frequency ω0 was not obtained, an operation changeover device 7 selects a third speed estimating means 10 for a specified very short period of time t2 after a second speed estimating means 9 being selected. The third means 10 finds and outputs the rotational angular frequency ω0 and residual flux level ϕ0 of an induction motor 4, similarly to the second means 9, so that the input current of the induction motor may be a specified DC current level ix2. The direction of a DC current vector caused to flow in this case is reverse to the case of the second means 9. Namely, they are caused to satisfy the relation of ix2=-ix1. Consequently, it is possible to more precisely grasp the rotational angular frequency and residual flux vector of the induction motor when operated manually.
Patent JP-2000279677-A (JP)
Title: Sewing machine
Inventor: NAKANO MOTONARI
IPC: D05B69/00
Filed: 1999-03-31
Abstract: PROBLEM TO BE SOLVED: To surely prevent an abnormal abrasion and seizure of a sliding section such as a bearing from occurring, and at the same time, improve productivity. SOLUTION: In the control processing of a sewing machine motor at the time of sewing, first, a CPU 52 reads stitch data from an embroidery data preparing device or the like through an interface 55 for communication, and the total number of stitches is counted from the stitch data. Then, from a revolution speed data table which is stored in a first revolution speed data area 54C, 'the revolution speed' data corresponding with the total number of stitches is read, and the 'revolution speed' data is set as the driving revolution number of the sewing machine motor at the time of sewing, and stitch data stored in a stitch data area 54A are read in order, and a specified embroidery pattern is sewn.
Patent JP-S61251564-A (JP)
Inventor: YAMASHITA YOHACHI
IPC: C04B35/46
Filed: 1985-04-30
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-H04323935-A (JP)
Title: Repeater
Inventor: NAGAHAMA KOTARO
IPC: H04L69/40
Filed: 1991-04-23
Abstract: PURPOSE:To realize the repeater measuring a characteristic impedance of plural transmission lines at once while the transmission lines are connected to the repeater, to separate a transmission line whose characteristic impedance has a fault automatically from the repeater so that an adverse effect due to a characteristic impedance failed port onto other transmission line of other port is not caused. CONSTITUTION:A characteristic impedance of a transmission line connecting to a repeater with an external switch is measured to discriminate whether or not the measured characteristic impedance is within a specified value set in advance, the result is displayed to an external device, the use of a port discriminated to be at the outside of the specified value is inhibited automatically internally, the state is continued even in the usual mode, when the port whose use is inhibited is measured again in the impedance measurement mode. the measured value is within the specified value, then the inhibit state of the port is automatically released internally.
Patent JP-H02140303-A (JP)
Title: Heat exchanger
Inventor: INOUE HITOSHI
IPC: F28D15/02
Filed: 1989-04-10
Abstract: PURPOSE:To reduce a heat loss by arranging a pipeline body and a heat pipe bringing a heat receiving section into heat contact with hot water and arranging a heat radiating section at a heated section on the outlet of the pipeline body, filling hot water in the pipe, and providing its exhaust switching valve. CONSTITUTION:A tank 7 storing the hot water from a hot water source is located higher than a pipeline body 8, the hot water is fed to the pipeline body 8 from a water feed pipe 9 by a pump 10, a switching valve 12 is closed, and the pump 10 is stopped after the hot water is filled. The heat receiving section 6a of a heat pipe 6 excited in the pipeline body 8 is brought into heat contact with the filled hot water, a working liquid is vaporized and moved from the pipe 6 to the heat radiating section 6b of a road face 5, and the latent heat of condensation is discharged by condensation liquefaction. The working liquid is repeatedly circulated from the pipe 6 to the heat receiving section 6a to lower the temperature of the hot water, and the hot water is fed via the switching valve in the pipeline body 8 before the temperature is made too low. Effective heat exchange characteristic can be obtained.
Patent JP-S62247002-A (JP)
Title: Production of sintered aluminum alloy parts
Inventor: INUI KAZUYUKI
IPC: C22C1/04
Filed: 1986-04-19
Abstract: PURPOSE:To eliminate the need for hot extrusion working by heating Al alloy powder in an inert atmosphere, then breaking down the oxide film on the powder surface by rotating rolls which are different in circumferential speeds, then sintering the powder to a prescribed shape. CONSTITUTION:The quickly solidified powder P of the Al alloy is supplied into a chamber 10 which is held in a vacuum atmosphere from a vat 20 and in heat-treated at about 250-350 deg.C by a heating treatment device 30. The powder P subjected to a heating treatment is fed to the rollers 40 having rollers 41, 42 which face each other and rotate at the circumferential speeds different from each other, by which the powder is compressed and deformed and the oxide films on the surface are broken down. The ratio (V2/V1) of the circumferential speed V2 of the other roller 42 to the circumferential speed V1 of one roller 41 is set at >=3/1, and the respective cylindrical diameters of the rollers 41, 42 are set at about >=300mmphi and the spacing between the rollers is set at about 0.01-0.1mm. The powder P is received in a vat 50 and is introduced into a sintering device 60 by which the powder is sintered to a prescribed shape. The heating treatment of the raw material powder P to the sintering stage thereof is thereby continuously executed, by which the productivity is improved and the cost of production is reduced.
Patent JP-H09282393-A (JP)
Title: Cooperation method for health insurance medical care card and on-line data base
Inventor: KIDO KUNIHIKO
IPC: G06F21/34
Filed: 1996-04-12
Abstract: PROBLEM TO BE SOLVED: To realize the safety the same as before via a health insurance medical care card system that is cooperative with an on-line data base by storing work key information which has been used for the password number applied to the data which are registered in the data base. SOLUTION: When patient data generated at a hospital through medical examination and treatment are registered in a data base, the data are encoded by a work key 114 and registered in the data base. A the same time, an address 112 set in a network 103 for the data storing the encoded patient data is stored in an IC card 107 together with a file name, i.e., an identifier which specifies the data of the data base. Then an authentication code 113 is produced for the data by means of a prescribed hash function and stored in the card 107, so that the data alteration can be detected. The record of the key cipher key obtained by enciphering the key 114 used for encipherment of the data by a card master key 115 is stored at the hospital, i.e., the data owner together with the ID number of the card 107.
Patent JP-S63257392-A (JP)
Title: Signal processing circuit for catv receiver
Inventor: YANAGIMOTO HIDEKI
IPC: H04N7/171
Filed: 1987-04-14
Abstract: PURPOSE:To improve buzz characteristic by giving a video intermediate frequency signal passing through a variable attenuator and a 1st band pass filter to a demodulation circuit and giving an audio intermediate frequency signal extracted by a 2nd band pass filter not through the variable attenuator to the demodulation circuit while being separated from the video intermediate frequency signal. CONSTITUTION:The changeover of the attenuation by a variable attenuator 3 is given to the video intermediate frequency signal only and the audio intermediate signal is given to a demodulation circuit 17 without being subjected to any attenuation. As a result, the audio intermediate frequency signal is not subjected to the AM modulation by the variable attenuator 3. Since the video intermediate frequency signal and the audio intermediate frequency signal are given separately to the demodulation circuit 17, the AM modulation caused by the AM modulation component of the video intermediate signal for the audio intermediate signal is reduced. Thus, the audio intermediate frequency signal is not AM-modulated at a period corresponding to the synchronizing signal, then the buzz characteristic is improved.
Patent JP-H06297114-A (JP)
Title: Apparatus for producing metal strip
Inventor: TAMURA NOZOMI
IPC: B22D11/10
Filed: 1993-04-19
Abstract: PURPOSE:To provide a metal strip producing apparatus in which the cut-off of outer gas flow caused by a coolng roll can favorably be attained. CONSTITUTION:In the metal strip producing apparatus having the cooling roll 5 rotated at high speed and a nozzle 4 for introducing the discharge of the molten metal 2 on the surface of the cooling roll, in the upstream side in the rotating direction of the roll from the discharging position of the molten metal with the nozzle 4, a shield plate 10 extended in the axial direction of the cooling roll with a width wider than the width of the molten metal film discharged on the cooling roll surface, is arranged substantially, near the cooling roll surface. Further, gas piping 10 for supplying gas so that the pressure in the downstream zone of the shield plate becomes atmospheric pressure or higher.
Patent JP-H08258713-A (JP)
Title: Wheel track changing trolley carriage of four-axle four-wheel trolley carriage
Inventor: SUZUKI SHIGEO
IPC: B61F7/00
Filed: 1995-03-24
Abstract: PURPOSE: To change a wheel track by simple work by way of corresponding it to wide and narrow rail gages by fitting a pair of support blocks of movable wheel axle units between crossbeams constituting an underframe and changing gage breadth by actuating an expansion device interposed and connected between the wheel axle units. CONSTITUTION: A trolley carriage 1 has movable wheel axle units 5-8 furnished with a support block 26 guided by crossbeams 3A, 3B, and each of the units 5-8 is fixed on a fixed plate 10 by a bolt 12. The wheel axle units 5, 6 and 7, 8 in the rail breadth direction are connected to each other by an expansion device 13. In case of changing a wheel track, a rod and a link of a brake system are removed, after extracting the bolt 12, an underframe 2 is raised by a jack and thereafter, the wheel track is adjusted by actuating a hydraulic cylinder of the expansion device 13 to expand and contract. After adjustment, the wheel axle units 5-8 are fixed by tightening a guide bolt 31 and the bolt 12, and the brake rods are recombined.
Patent JP-S5519917-A (JP)
Title: Swash plate compressor
Inventor: KAWASHIMA KENICHI
IPC: F04B39/02
Filed: 1978-07-28
Abstract: PURPOSE: To obtain the same lubricating effect as increased sealed oil volume, eliminating the main oil basin by minimizing swash plate chamber volume, minimizing the oil volume staied during compressor running, and increasing oil volume circurated in the refrigeration cycle.  
     CONSTITUTION: A small hole 22 is provided in the separator to face to the suction port 10, the refrigerant and oil returned to the low pressure passage 12 from the suction port 10 flow easily into the swash plate chamber 3 which the volume is minimized to permit the slight oscillating movement of the swash plate 2, and remaining oil with spraying state in the low pressure chambers 13, 14 can be collected to the swash plate chamber at stopping compression through that opening position of the low pressure chamber side of through hole 18, 19 is at the lowest position of the low pressure chamber 13, 14. Thus, minimizing the volume in swash plate chamber 3, and by minimizing the remaining oil separatly from the swash plate chamber 3, increasing circulating oil flow in the refrigeration cycle, the compressor can be prevented from damage at shortage of refrigerant. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H07296337-A (JP)
Title: Magnetoresistance effect thin film magnetic head
Inventor: SATO HITOSHI
IPC: G11B5/39
Filed: 1994-04-28
Abstract: PURPOSE:To suppress the heat generation of an MR device, improve the reproducing output and MR characteristics of the MR device and improve the reliability of a product substantially. CONSTITUTION:An insulating layer 13 made of beryllium oxide (BeO) is formed on the surface of a lower part magnetic pole 2. An MR device 1 made of, for instance, Ni-Fe is formed on the insulating layer 13. Further, an insulating layer 14 made of beryllium oxide is formed on the MR device 1.
Patent JP-H01263529-A (JP)
Title: Device for transmitting temperature-compensated differential pressure
Inventor: KUROSAWA SADAO
IPC: G01L13/00
Filed: 1988-04-15
Abstract: PURPOSE:To enable the measurement of a differential pressure without being affected by environment of the differential pressure measurement and the temperature of a measuring fluid, by providing a differential pressure compensating computing device which has a means to calculate a temperature-compensated value of a differential pressure output signal by a specific formula. CONSTITUTION:An information on a differential pressure in an object 1 of measurement is passed through a high-pressure side pressure introduction piping 2 and a low-pressure side pressure introduction piping 3 and converted into an electric signal in a differential pressure transmitter 4, and it is outputted as a differential pressure signal IR. As to a pressure introduction piping average temperature, output signals of a high-pressure side pressure introduction piping temperature detector 6 and a low-pressure side pressure introduction piping temperature detector 7 are averaged by a pressure introduction piping temperature averaging device 8 and converted into an electric signal, and it is outputted as a pressure introduction piping average temperature signal (t). This signal (t) is inputted to a differential pressure transmitter zero point error computing means 10 and a differential pressure transmitter span error computing means 11 in a differential pressure compensation computing device 5, and thereby a differential pressure transmitter zero point error EZ and a differential pressure transmitter span error ES are calculated. Then, the signal IR and the errors EZ and ES are inputted to a temperature-compensated differential pressure signal value calculating means 12, and a temperature-compensated value IO of the signal IR is calculated by the formula and outputted.
Patent JP-H06301941-A (JP)
Title: Apparatus for measuring position of magnetic head
Inventor: MOTOMURA TADAICHI
IPC: G11B5/455
Filed: 1993-04-19
Abstract: PURPOSE:To measure the position of a magnetic head without moving a light emitting element and a detecting element for detecting the position of the light emitting element. CONSTITUTION:When a light from a light emitting element 1 is cast on a magnetic head 2 set to a drum 16 and the reflecting light is detected by a position detecting element 3, the position of the magnetic head 2 to the drum 16 is measured in this measuring apparatus. The using light from the light emitting element 1 is a linear beam and the position detecting element 3 is a two-dimensional element. Because of the use of the linear beam and the two-dimensional position detecting element, three-dimensional data of the magnetic head can be obtained while both the light emitting element and the two-dimensional position detecting element, are fixed (kept, immobile). Accordingly, the measuring apparatus itself is greatly simplified.
Patent JP-S5519432-A (JP)
Title: Increasing method of damping ability of metal material
Inventor: NAKAE HIDEO
IPC: B23K20/00
Filed: 1978-07-28
Abstract: PURPOSE: To increase damping ability by providing a multiplicity of grooves of the specific size on the surface of a metal material, crushing the grooves through plastic working and impregnating resin therein.  
     CONSTITUTION: A multiplicity of grooves of a width less than 1/10 the thickness of plate blank are provided through machining by tools on the surface of a pure Al plate blank. After the Al plate blank is rolled to crush its grooves, it is impregnated with the resin having viscoelasticity such as epoxy resin or the like. while the  logarithmic damping factor of the unworked Al blank is about 1×10 -2 , the application of the abovementioned working increases the damping factor 20 to 50 times. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H11292318-A (JP)
Title: Paper supply device
Inventor: OSANAI TOSHITAKA
IPC: B65H3/06
Filed: 1998-04-03
Abstract: PROBLEM TO BE SOLVED: To disperse a load applied on a drive motor when paper supply is started. SOLUTION: This paper supply device is provided with a feed roller 1 consisting of a roller part 11 having a substantially half moon-shaped cross section and a rubber part 2 provided on a surface of the roller part 11, a shaft 5 supporting the feed roller 1, auxiliary rollers 4 which are arranged in both side parts of the feed roller 1 and have a smaller diameter than that of a circular arc part of the feed roller 1, a separation pad 8 in contact with the feed roller 1, and a pad holder 7 which supports this separation pad 8 and can swing toward the feed roller 1 side to supply paper by passing it through the separation pad 8 and separating papers one by one when the feed roller 1 is rotated to convey paper.  A collar part 11a having a diameter substantially equal to a diameter of the circular arc part of the feed roller 1 is brought into contact with a part ahead more than the rubber part 2 for paper at the time of paper supply and is arranged at a position where the rubber part 2 comes into contact with paper after pushing the separation pad 8 down in both side parts of the collar part 11.
Patent JP-S59187548-A (JP)
Inventor: NOGUCHI KAZUHIKO
IPC: B65D30/16
Filed: 1983-05-25
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-H0613691-A (JP)
Title: Light pulse generator
Inventor: JIYOOJI TOREIDO HAABUEI
IPC: H01S3/07
Filed: 1993-03-29
Abstract: PURPOSE: To generate a stable pulsated output by extracting 1st and 2nd beams from an optical path and distributing these beams through 1st and 2nd optical filters, having an optical pass band which intersect with the approximately center operating frequency of a laser. CONSTITUTION: The optical path of a laser is separated into 1st and 2nd optical beams 33, 34. First and second filters are constituted of a single wedge-like etalon 37, and the optical path of the laser is distributed through 1st and 2nd filters 37. The free spectral range of a Fabry-Perot resonator 24 in a laser link is deviated only by frequency sufficient to generate an optical path length change indicated as a change in the wavelength of light which is transmitted through the optical path from the same frequency as the pulse repetition speed of the laser. A differential amplifier 42 detects the intensity difference of light detected by respective detectors 39, 40, and the length of the optical path of the ring laser is adjusted by a length adjuster 43 to compensate the variation in false temperature induced length.
Patent JP-S5518278-A (JP)
Title: Waste water treatment apparatus
Inventor: KANAMORI KOUZOU
IPC: B01D35/027
Filed: 1978-07-26
Abstract: PURPOSE: To enhance the treating efficiency of waste water by the procedure in which a filter medium cleaner is provided in close proximity to the filter medium of filter provided on the periphery of floating separator and filtrate in filter is absorbed and recycled to the floating separator.  
     CONSTITUTION: The filter 3 by which waste water is filtered is provided on the periphery of the floating separator 2 provided at the bottom of the waste water treatment tank 1 in such a way that the filter 3 and the filter medium cleaner 40 are relatively rotated around the floating separator 2. The liquor collecting tube 28 of the filter 3 is connected directly to the purified liquor tank 22 and the filter medium cleaner 40 is connected to the motor 24. Also, the filter medium cleaner 40 is connected through the conduit 38 to the suction pump 43 and the filtrate is recycled through the conduit 39 to the floating separator 2. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S59216792-A (JP)
Inventor: NOERU ESU PATAASON
IPC: B64D45/04
Filed: 1984-05-10
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。