baber/WOPTO huggingface dataset:
Patent JP-H1183671-A (JP)
Title: Otdr device
Inventor: MORI HIROHARU
IPC: G01M11/02
Filed: 1997-08-31
Abstract: PROBLEM TO BE SOLVED: To surely discriminate defect in the vicinity of the far end of an optical fiber to be measured. SOLUTION: The pulse output of a pulse generator 11 is sent to a laser generator 12 to generate an optical pulse and the optical pulse is made incident on one end of an optical fiber 14 to be measured through an optical directional coupler 13. Then the returning light of the optical pulse is introduced to a photodetector 21 through the coupler 13 and the output of the photodetector 21 is sampled and digitized by means of an A/D converter 22 that is controlled by the pulse output of the pulse generator 11 and processed by means of an averaging circuit 23.  Of the data obtained by means of the circuit 23, those about the vicinity of the far end of the fiber 14 are fetched to a discriminating circuit 26 and Fresnel reflection is caused by cutting the vicinity of the far end of the fiber 14 or increasing the transmission loss of the fiber 14 by bending the vicinity by remotely controlling an optical fiber end manipulating device 15 by means of a controller 27. Then the discriminating circuit 26 discriminates the presence/absence of a defect in the vicinity of the far end of the fiber 14 by discriminating whether or not the waveform changes in the vicinity of the far end before and after the above-mentioned operation.
Patent JP-H0298763-A (JP)
Title: Data processor
Inventor: SAKAI SEIKI
IPC: G06F11/22
Filed: 1988-10-05
Abstract: PURPOSE:To easily detect the erroneous connection of or connection defect in a connector cable by confirming the connecting state of the connector cable by controlling the shift operations of first and second shift paths connected to the input and output sides of the connector cable and include registers, respectively. CONSTITUTION:The registers 13 and 14 which comprise the shift path 16 are connected to connectors 11 and 12 on the input side of the connector cables 101 and 102, and the registers 23 and 24 which comprise the shift path 26 are connected to connectors 21 and 22 on the output side of the connector cables 101 and 102. The connecting states of the connector cables 101 and 102 can be confirmed by a diagnostic device 3 by controlling the shift operations of the shift paths 16 and 26. In such a way, it is possible to easily detect the erroneous connection of or the connection defect in the connector cables 101 and 102.
Patent JP-H07106378-A (JP)
Title: Probe card for measuring characteristics of semiconductor device
Inventor: SHINPO TAKESHI
IPC: H01L21/66
Filed: 1993-10-07
Abstract: PURPOSE:To prevent the measurement surface of a semiconductor wafer from being scratch with the tip of the probe of a probe card. CONSTITUTION:A probe card for measuring the characteristics of a semiconductor device is provided with a probe 30 having such a tip 30A as the needle tip 30A of the probe 30 comes into contact vertically to a measurement surface Sa of a semiconductor wafer formed with a CCD to be measured and the like. Thereby, as the scratch of the needle tip with the surface Sa is suppressed to the utmost, the generation of dusts can be significantly reduced and the yield of the semiconductor device can be improved.
Patent JP-H03115826-A (JP)
Title: Gas leak alarming circuit-breaker and method for breaking gas
Inventor: KATO YUKIO
IPC: G08B21/00
Filed: 1989-09-29
Abstract: PURPOSE:To prevent a gas valve from being shut off interlocked with erroneous operation of a gas leak alarm by shutting the valve only when a gas flow rate after a gas leak alarm signal is issued reaches a specific value or higher compared with the gas flow rate before the alarm signal is issued. CONSTITUTION:A CPU 31 of a controller 30 stores in a RAM 35 a sampled gas flow rate acquired from a pulse generating type gas meter 21 and always updates with new data. When an alarm signal is issued from a gas leak alarm 22, a gas flow rate before the gas leak and the gas flow rate after the gas leak are compared by a comparator COM36, and only when the gas flow rate after the gas leak is larger than the gas flow rate before the gas leak by a specific value and the gas leak alarm signal continues for a specific time or longer, a cut valve 23 is operated to shut the gas. Thus when the gas leak alarm 22 erroneously functions due to various kinds of sprays, etc., the gas valve can be prevented from being shut interlockingly so that the gas valve can be shut only at the time of an actual gas leak.
Patent JP-S60139017-A (JP)
Title: Output circuit
Inventor: SATOU MAKI
IPC: G11C27/04
Filed: 1983-12-26
Abstract: PURPOSE:To obtain an output signal which is subjected to correct waveform shaping by performing sampling/holding over two stages and also specifying the phase difference and the wave height of a sampling pulse. CONSTITUTION:The input signal given from a terminal 5 is supplied to a source follower circuit 21 via a source follower circuit 11. The output of the circuit 21 is supplied to an inverter amplifier 23 via a sampling/holding circuit 22. The output of the amplifier 23 is supplied to an inverter amplifier 26 via a sampling/ holding circuit 24. Then an output signal which is subjected to waveform shaping is obtained from an output terminal 15. The sampling pulses SH1 and SH2 supplied to the circuits 22 and 24 have different phases by 180 deg. from each other. At the same time, the crest value of the SH2 is set smaller than that of the SH1. In such a way, the variance of the output DC level which is due to the sampling process can be reduced effectively. Thus it is possible to obtain an output signal that is subjected to correct waveform shaping.
Patent JP-H0718511-A (JP)
Title: Method for producing fiber from viscous substance and apparatus therefor
Inventor: IKEDA KAORU
IPC: D01D4/00
Filed: 1991-09-30
Abstract: PURPOSE:To produce a high-quality fiber having low shot content by decreasing the generation of shot during the fiber-forming process of a viscous substance. CONSTITUTION:A flow of a viscous substance 13 flowing downward is divided into small pieces near a point P where a gas flow 7 approaches closest to the substance flow 13 by the simultaneous actions of plural gas flows converging on the point P. The divided substance 14 is uniformly distributed around the center axis line H0 along the moving direction of each gas flow 7 gradually separating from the point P and is drawn by the action of a gas flow 12 ejected against the gas flow 7 to form a fibrous substance 15. The ejection energy ratio of the gas flow 7 to the gas flow 12 is maintained to 1 to >=2. When the ratio is 1 to <=2, a turbulence of the gas flow is generated in the 2nd nozzle 8 to inhibit the smooth drawing of the divided substance 14 and, furthermore, the gas flow 7 itself is disturbed to disable the uniform division and uniform distribution.
Patent JP-H03115247-A (JP)
Title: Production of cyclododecanone
Inventor: FURUSAKI SHINICHI
IPC: B01J23/80
Filed: 1989-09-29
Abstract: PURPOSE:To industrially and continuously produce cyclododecanone in high selectivity and yield by bringing gaseous cyclododecanol into contact with a copper-zinc-based fixed catalyst and carrying out dehydrogenating reaction at a relatively low temperature. CONSTITUTION:Gaseous cyclododecanol is fed onto a fixed catalyst, consisting essentially of copper and zinc and used as a catalyst, brought into contact therewith at 230-295 deg.C under 0.8-2atm and dehydrogenated to produce cyclododecanone, which is then cooled to afford a reaction solution containing the cyclododecanone. Since the dehydrogenating reaction is carried out at a relatively low temperature according to the aforementioned method, side reaction can be suppressed. The catalyst activity is high with a high conversion rate of the cyclododecanol. Since the dehydrogenating reaction is carried out in the presence of the fixed catalyst, special operation to remove the catalyst from the reaction gas or solution is not required. The resultant compound is useful as an intermediate raw material for laurolactam.
Patent JP-2001071233-A (JP)
Title: Fluid leak preventing structure of cutting fluid supply device
Inventor: MUNESHIGE YOSHITAKA
IPC: B23Q11/10
Filed: 1999-09-06
Abstract: PROBLEM TO BE SOLVED: To provide a fluid leak preventing structure of a cutting fluid supply device capable of surely preventing cutting fluid from leaking outside. SOLUTION: This cutting fluid supply device, supplying cutting fluid to a work region of a machine tool to collect a spent cutting fluid to a collection box 6 from a collection port 7 provided in the machine tool, is a fluid leak preventing structure, formed in the vicinity of a clearance 8 between a peripheral lower surface of the collection port 7 and an upper edge part of the collection box 6 arranged under this collection port 7. A first fluid return horizontal piece 6b positioned under the clearance 8 is extended inward from the upper edge part of the collection box 6 and a fluid return vertical piece 6a positioned in an inner side of the clearance 8 is suspended from the peripheral lower surface of the collection port 7 toward the inside of the collection box 6 along the first fluid return horizontal piece 6b.  A second fluid return horizontal piece 6c positioned under the first fluid return horizontal piece 6b is extended from the fluid return vertical piece 6a, so as to vertically overlap the first and the second fluid return horizontal piece 6b, 6c.
Patent JP-H0299831-A (JP)
Title: Method and device for controlling flow rate in tube
Inventor: HOCHIDO YUKO
IPC: G05D7/06
Filed: 1988-10-06
Abstract: PURPOSE:To determine the flow rate of a fluid and to enable the control of the flow rate by using a flow measurer measuring the phase of an acoustic wave propagated through the fluid and a flow regulating mechanism in a conduit. CONSTITUTION:A flow measurer 1 has a vibrator and two vibration sensors being provided at equal distances in the opposite directions from the vibrator, in a conduit 5 through which a fluid flows. When the fluid is let to flow through the conduit 5, which is a measuring tube, and an acoustic wave is generated from the vibrator, a phase is formed in the acoustic wave caught by the vibration sensor positioned on the upstream side of the fluid as a medium for propagating the acoustic wave and in the acoustic wave caught by the vibration sensor positioned on the downstream side. Since the phase is proportional to the velocity of the fluid, a flow rate can be measured precisely by measuring the phase. By comparing a signal from the flow measurer 1 with a set value by amplifier 2, a flow regulating valve 3 is adjusted and thereby the flow rate can be controlled.
Patent JP-H08115309-A (JP)
Title: Learning control method
Inventor: YAMADA SATOSHI
IPC: G06N3/08
Filed: 1994-10-18
Abstract: PURPOSE: To obtain a learning control method which speedily learns the control method of a control object system by using evaluation to control. CONSTITUTION: The measurement result of the state of a system 1 to be controlled is inputted to a control system formed out of a control neural network 2 of neurons having outputs in positive and negative range, and the evaluation to the control over the control object system is decided from the measurement result of the state of the control object system controlled on the basis of the input value, and the synapse connection intensity of the neural network is learnt on the basis of the decision result by being varied when the absolute value of the products of the outputs of the neurons before and after the synapse exceeds a specific value, and the said processes are repeated on the basis of the learning result to control the controlled system.
Patent JP-H06100201-A (JP)
Title: Sheet conveying device
Inventor: ARAKAWA TOMOKAZU
IPC: B65H7/06
Filed: 1992-09-22
Abstract: PURPOSE:To compensate a sensitivity difference of jam detection due to a product error, a change with the lapse of time and the like in a sheet conveying device. CONSTITUTION:In a sheet conveying device 24 in which a detection terminal 20 of a jam sensor 19 is elastically positioned on a sheet conveying path 7, a jam monitoring time is counted in accordance with detection output of the jam sensor 19, and generation of jam is decided when the detection output of the jam sensor is continued until completion of this counting, time changing means 47, 49, 53 for variably setting the jam monitoring time are equipped so as to extend the jam monitoring time when elastic force of the detection terminal 20 of the jam sensor 19 is short and shorten that time when this elastic force is excessive.
Patent JP-H1197673-A (JP)
Title: Semiconductor device
Inventor: NISHIYAMA AKIRA
IPC: H01L29/78
Filed: 1997-09-17
Abstract: PROBLEM TO BE SOLVED: To maintain good characteristics even when the gate length is short. SOLUTION: This device has a gate electrode 14 formed on a first p-type semiconductor 11 via a gate insulation film 13, and n-type source and drain 15 formed at both sides of the gate electrode 14. At least a part of the source and drain 15 is made from a second semiconductor 16, and the energy difference between the conduction band end of this semiconductor and vacuum level is greater than that between the conduction band edge of the first semiconductor and vacuum level.
Patent JP-S62112491-A (JP)
Title: Driving method for solid state image pickup element
Inventor: TAKATSU NORIHIKO
IPC: H04N9/07
Filed: 1985-11-11
Abstract: PURPOSE:To remove a field residual image and to set up practically an accumulation time to 1/60sec by transferring unnecessary electrostatic charge from photodetecting parts to vertical transfer parts in a vertical blanking period before one field and sweeping the unnecessary charge from the vertical transfer parts to the external by rapid transfer operation prior to the transfer of signal charge from the photodetecting part to be executed every frame period. CONSTITUTION:Operation for transferring signal charge in each field from the photodetecting part 1 to the vertical transfer part 2 every frame period without adding the signal charge in respective photodetecting parts 1 is executed as reference operation. The signal charge in the photodetecting part 1 is once transferred to the vertical transfer part 2 as unnecessary charge and then swept to the external from the vertical transfer part 2 on the basis of rapid sweeping operation in the vertical blanking period before one field of timing for reading out the signal charge from the photodetecting parts to the vertical transfer parts 2 every frame in both odd and even fields. Consequently, a solid image pickup element can be driven in a field accumulation mode practically set up to 1/60sec.
Patent JP-H0195502-A (JP)
Title: Manufacture of magnetic powder for bond magnet
Inventor: HARADA TETSUJI
IPC: H01F1/058
Filed: 1987-10-08
Abstract: PURPOSE:To assure inexpensively magnetic powder for a bond magnet having a high magnet characteristic by rendering a sintered product having a specific composition to aging and then powdering the same by a non-powdering method. CONSTITUTION:A predetermined raw material is melted in an arc furnace into an alloy ingot such that a sintered product has its composition: R, 8-30 atmic%, M, 42-90 atmic%,and X, 2-28 atmic% (R is at least one kind among rare earth elements including yttrium, M is iron and or cobalt, and X is at least one kind along boron, carbon, phosphorus), and further powdered. Then, the resulting alloy powder is molded in a magnetic field, sintered, aged, and powdered by a non-powdering method. Hereby, bond magnet powder can be formed inexpensively by cutting for example from the sintered product having a high magnet properties without losing the properties.
Patent JP-H06224412-A (JP)
Title: Atom switch circuit and system
Inventor: WADA YASUO
IPC: H01L29/68
Filed: 1992-09-22
Abstract: PURPOSE:To materialize high-speed operation and high-density mounting by constituting a memory circuit and a logic circuit, using atoms as switches for changing the conductivity of an atomic fine line. CONSTITUTION:A circuit is composed of an atom fine line, a switching atom 2, a switching gate, etc. Both sides of the atomic fine line 1 are connected to input 4 and output 5. The signal inputted from the input 4 is outputted to the output 5 when a switching atom 2 is inputted into the atomic fine line. When a signal is inputted into the switching gate 3 so as to move the position of the switching atom 2 into separate condition from the atomic fine line 1, the signal inputted from the input 4 can not go down, so the output to the output 5 is obstructed. Hereby, high-speed switching become possible, and a high-speed and high-density memory circuit and a logic circuit can be materialized.
Patent JP-H0299813-A (JP)
Title: Solar sensor
Inventor: SOGA HIROSHI
IPC: F24S50/20
Filed: 1988-10-06
Abstract: PURPOSE:To simplify a construction and to make the fitting easy and convenient by determining a difference in output between first and second sunbeam detecting members which are provided in the directions each intersecting a detection axis at a right angle substantially and in inclination in the reverse direction to each other on cell surfaces of a solar cell paddle. CONSTITUTION:On cell surfaces provided with solar battery cells of a solar cell paddle 10 which is mounted on an astronautical body, slanting parts 11a and 11b are formed in the directions each intersecting a detection axis, e.g. the y-axis, at a right angle substantially and in inclination (an inclination angle thetac) in the reverse direction to each other. The slanting parts 11a and 11b are formed oppositely in the opposite end parts on the inner-panel side of the paddle 10, for instance, and elements for converting a light energy into an electric energy, e.g. solar battery cells 12a and 12b, are stuck on the slanting surfaces of the parts respectively. When the cells 12a and 12b are irradiated by the sunbeams, they deliver to a signal processing unit 13 an output a1=fcous(theta-thetac) and an output a2=fcos(theta+thetac) (theta is an angle of rotation to the paddle 10 and (f) a scale factor), respectively. The processing unit 13 determines a difference between the outputs a1 and a2 and detects the angle of rotation around the y-axis therefrom.
Patent JP-H03114106-A (JP)
Title: High-conductive carbon fiber structure
Inventor: TAJIRI HIROYUKI
IPC: H01B1/24
Filed: 1989-09-27
Abstract: PURPOSE:To improve conductivity of a carbon fiber structure by blending a specific amount of graphitized and milled fibers with a composite consisting of carbon fibers, an adhesive component and graphite powder and/or carbon black. CONSTITUTION:When a carbon fiber structure is manufactured, a slurry containing carbon fibers, graphite powder and/or carbon black as well as an adhesive is blended with graphilized and milled fibers having the length of about 0.05mum to 1mm at the rate of about 3 to 10% to 100% of carbon fibers. In this case, a connecting condition of carbon fiber filaments themselves becomes closer thus to further improve conductivity and strength of the structure.
Patent JP-H10108363-A (JP)
Title: Power system for parallel use
Inventor: KANEKO SHINJI
IPC: H02H7/12
Filed: 1996-09-25
Abstract: PROBLEM TO BE SOLVED: To suppress the rise of the output voltage to be supplied to the load within the tolerable range even if there is a power source which generates overvoltage. SOLUTION: When a power system for parallel use is started up, a current consumption information acquisition means 5 acquires the information on the current consumption from load 4, and based on this current consumption information, a limit current value computing means 6 computes the limit current value that each power source means can output. The computed limit current value is set in the current limiting functions 3a, 3b, and 3c provided at each power source means 1a, 1b, and 1c by a limit current value setting means 7. Here, if one unit of the power source means gets in abnormal condition where it generates overvoltage, in the power source means, the output current increases with the rise of the output voltage.  When the output current gets over the limit current value, the current limiting function of the power source means works and shuts down the the power source means, and also residual power source means continue the current supply to the load 4.
Patent JP-2001070254-A (JP)
Title: Optical fiber type eardrum thermometer
Inventor: HASEGAWA HIDEKAZU
IPC: A61B5/00
Filed: 1999-09-07
Abstract: PROBLEM TO BE SOLVED: To measure the temperature of the eardrum precisely by correcting an error caused by warming of an optical fiber itself of a clinical thermometer when the clinical thermometer is put to an ear. SOLUTION: The temperature of the eardrum y is calculated using the expression y=ax2+bx+cz2+dz+exz+f. In this expression, y is the temperature of the eardrum at the tip of an optical fiber part 11, z is the detected output of infrared rays going out from the end of the main body 10 of the optical fiber part 11, and x is the detected output of the temperature of the optical fiber part 11 itself. The parameters a, b, c, d, e and f are found from the data collected by putting this optical fiber type eardrum thermometer to an ear- shaped blackbody furnace 20 whose structure is similar to that of an ear, changing the temperature and actually measuring the values of x, y and z.
Patent JP-H08116221-A (JP)
Title: Constant current circuit
Inventor: HIRANO TETSUO
IPC: H03F1/02
Filed: 1994-10-19
Abstract: PURPOSE: To provide a constant current circuit whose power consumption is reduced by interrupting an Iref and also setting a bias voltage to zero in the standby state. CONSTITUTION: A current Iref flowing to the constant current circuit is interrupted and a bias voltage output Vbias is set to zero in the standby state in which no signal is received by an operational amplifier by 1st and 2nd switch circuits 3, 4, then bias currents I1,I2 of the operational amplifier and the current Iref are completely set to zero thereby attaining low power consumption. Furthermore, a switch control circuit 5 is used to control the on/off timing of the 1st and 2nd switch circuits 3, 4 to avoid direct connection of a resistor R between a point of a power supply voltage VDD and a ground in the case of changeover between the operating state and the standby state, then flowing of a rush current is avoided at changeover and low power consumption is attained.
Patent JP-S61130161-A (JP)
Title: Branch device for paper conveyance
Inventor: FUJIOKA TADASHI
IPC: B65H1/30
Filed: 1984-11-30
Abstract: PURPOSE:To stably convey a paper without the occurrence of a trouble, such as choking with paper, when a paper is reversed, by a method wherein a conveyance direction shifting base plate and a conveyance shifting following plate are located, and a control plate is located. CONSTITUTION:A conveyance direction shifting base plate 39 and a conveyance direction shifting following plate 40 are located. In a first rotation position, the outlet of a forward passage A and the inlet of a second discharge device E are communicated with the outlet and inlet of a temporary receiving reversing part C for turn over. In a second position, the outlet of the forward passage A is communicated with the inlet of a first discharge device D. When the back of a non-side printed duplicating paper is also printed, the paper is located in a first rotation position, and in case the duplicating paper is taken out after printing is completed, the paper is located in a second rotation position for branch conveyance. Further, when the duplicating paper is reversed between the base plate 39 and the following plate 40 in order to print the back also, a regulating plate 43 is located in a position shown by a solid line, and this forces the paper to be guided to the second discharge passage E, resulting in stabilization of conveyance of the paper without the occurrence of a trouble, such as choking with papers.