baber/WOPTO huggingface dataset:
Patent JP-H01151183-A (JP)
Title: Manufacture of rectangular electronic component
Inventor: IKEDA HIROYASU
IPC: H01R11/01
Filed: 1987-12-07
Abstract: PURPOSE:To make the solder quantity constant when an electronic component is immersed in a solder bath by forming the first metal layer of Ni and the second metal layer of Sn in sequence on the surface except the bottom of in angular element made of a conducting metal and grinding one face in the thickness direction. CONSTITUTION:The first metal layer 3 made of Ni or Ni alloy is formed by electroless plating on the whole surface of an angular element 2 made of a conducting metal. The second metal layer 4 made of Sn or Sn alloy is formed by electrolytic plating. One face in the thickness direction of the angular element 2 is ground by the optional grinding method, the first and second metal layers 3 and 4 are ground to form the ground face 5 of the angular element 1. When an angular electronic component thus formed is used for a ground junction and immersed in a solder bath, the solder quantity corresponding to the surface area of the electronic component is consumed, an accident caused by the too much or too little solder can be resolved, the sharp reduction of the production man-hours due to automatic fitting is attained.
Patent JP-H01149517-A (JP)
Title: System for detecting clock phase difference
Inventor: YAMAMOTO KENTARO
IPC: H03K5/15
Filed: 1987-12-04
Abstract: PURPOSE:To easily detect a phase difference between two clock signals and, simultaneously, to adjust the phase difference in a short time by combining a variable delaying circuit, an FF and a delaying circuit. CONSTITUTION:Variable delaying circuits 12 and 22 to which a clock signal 101 is supplied delays the signal by a delaying quantity adjusted beforehand, and sends delaying clock signals 102 and 202. The signal 102 is inputted to an FF 11 and a gate 23. The gate 23 delays the signal 102 for the input data holding time of an FF 21 or above, and supplies it to the FF 21. On the other hand, the signal 202 is inputted to the FF 21 and a gate 13. The gate 13 delays the signal 202 for the input data holding time of the FF 11 or above, and supplies it to the FF 11. Next, an external circuit to which respective output data signals 111 and 221 of the FFs 11 and 21 are supplied judges the phase difference between the signals 102 and 202 by the values of the signals 111 and 221.
Patent JP-H10146856-A (JP)
Title: Prefoaming device for thermoplastic resin particle
Inventor: MIZUIKE HIDEYA
IPC: B29K105/04
Filed: 1996-11-19
Abstract: PROBLEM TO BE SOLVED: To provide a prefoaming device for thermoplastic particles of simple structure without a driving section which can remove efficiently a dispersant out of prefoamed particles. SOLUTION: A prefoaming device for thermoplastic resin particles is provided with a pressure vessel 1 and a low pressure vessel 7, and the low pressure vessel 7 is formed of a cylindrical body inclined to the horizontal face in the axial direction, and a discharge opening 6 communicated with the pressure vessel 1 is provided on the end above the low pressure vessel 7, and a cleaning water feed section 9 is provided in the vicinity of the discharge opening 6. A filtration section 12 for separating preliminarily foamed particles 8 is provided in the lower section of the low pressure vessel 7 and a carrying section for introducing a carrying medium into the low pressure vessel 7 and carrying the preliminarily foamed particles 8 together with the above-said carrying medium to the outside of the low pressure vessel 7 is provided in the vicinity of the filtration section 12.
Patent JP-H06133391-A (JP)
Title: Acoustic signal equalizer circuit
Inventor: SAKATA HARUO
IPC: H03G5/02
Filed: 1992-10-21
Abstract: PURPOSE:To reproduce a sound with abundant sound quality by adding a harmonic of an in-band signal with a proper level to an acoustic signal when the acoustic signal whose band is limited to a definite band is reproduced. CONSTITUTION:Envelope detectors 11-3, 11-4 detect a harmonic output whose frequency is high (at output terminals 6, 7), the detection output is smoothed respectively by integration circuits 15-3, 15-4, the smoothed output is fed to gain control amplifiers 16-3, 16-4, the output of the gain control amplifier 16-3 is fed to an inverting input of operational amplifiers 17, 18, 19 and the output of the gain control amplifier 16-4 is fed to a noninverting input of the operational amplifiers 17, 18, 19, the operational amplifiers 17, 18, 19 output a control signal to gain control circuits 10-1, 10-2, 10-3, which control the gain of harmonic signals from BPFs 9-1,9-2,9-3 whose center frequencies are respectively 2fH1, 2fH2, 2fH3 to control the harmonic signals based on the acoustic signal whose frequency band is limited as f<=fc thereby adding the harmonic component with a proper level to the acoustic signal.
Patent JP-H07155288-A (JP)
Title: Endoscope apparatus
Inventor: KOBAYASHI KAZUNARI
IPC: G02B23/24
Filed: 1993-12-08
Abstract: PURPOSE:To perform easily to control an image of an endoscope by performing photographing of a picked-up endoscopic picture and photographing of an image based on data which belong to an object to be examined of the endoscopic picture by a simple constitution. CONSTITUTION:When the first frame of a film 22 is photographed, a CPU 10 controls a CRT controller 12 to form only an enlarged character image prepd. by enlarging preset specified character data among at least character data images as a synthetic image and it is photographed on the first frame of the film 22 by a camera 21 and thereafter, on every receiving of a release signal, a synthetic image for photographing prepd. by synthesizing character data except the specified character data of the enlarged character image and an endoscopic image is photographed.
Patent JP-2000128656-A (JP)
Title: Porous titanium dioxide sintered body, it production and use
Inventor: SUGIMOTO SHOJI
IPC: C04B35/46
Filed: 1998-10-29
Abstract: PROBLEM TO BE SOLVED: To provide a porous titanium dioxide sintered body having a sufficiently narrow fine pore diameter distribution, controlled fine pore diameters and a sufficiently high porosity. SOLUTION: This porous titanium dioxide sintered body has a fine pore porosity of >=50 vol.% and a fine pore diameter distribution having a D10/D90 ratio of <=3 wherein D10 and D90 are fine pore diameters corresponding to an accumulated 10% diameter and an accumulated 90% diameter, respectively, from the large diameter side of the accumulated fine pore distribution. This method for producing the porous titanium dioxide sintered body comprises heating a titanium compound molded body or titanium compound granules in a temperature range of 800-1,200 deg.C in an atmosphere containing a halogen gas or a halogen-containing gas in an amount of >=1 vol.%. The titanium compound molded body or titanium compound granules contain 0.01-40 wt.% of rutile type titanium dioxide powder having a BET specific surface area of 0.1-80 m2/g, and can theremally be converted into rutile type titanium dioxide.
Patent JP-H10139407-A (JP)
Title: Production of aluminum nitride solid of high thermal conductivity
Inventor: KOTAKA HIROAKI
IPC: C04B35/581
Filed: 1996-11-05
Abstract: PROBLEM TO BE SOLVED: To produce an aluminum nitride solid of improved thermal conductivity which is obtained by nitriding an alumina material. SOLUTION: This aluminum nitride solid of high thermal conductivity is produced by heating a solid composed of a mixture of a γ-Al2 O3 -based compound, and a compound of a metal of IIa or IIIa group in the periodic table in an oxide-converted quantity of 1-30wt.% based on the A12 O3 -converted weight of the Y-Al2 O3 based compound, at approximately 600-1,000 deg.C in the oxygencontaining gaseous atmosphere, and further heating the mixture at 1,400-1,700 deg.C in an atmosphere of gaseous mixture of ammonia and hydrocarbons. The γ-Al2 O3 -based compound is preferably a solution that contains a γ-Al2 O3 -based compound forming precursor, and the compound of a metal of Ila or IIIa group is preferably a chloride, carbonate, nitride or alkoxide of calcium, strontium, barium, yttrium, lanthanum or cerium.
Patent JP-H02155692-A (JP)
Title: Thermal transfer recording medium
Inventor: MURATA TSUTOMU
IPC: B41M5/30
Filed: 1988-12-08
Abstract: PURPOSE:To obtain a transferred image being free from nonuniformity in density, uniform and excelent in friction resistance by separating a thermal transfer ink layer functionally into a transparent ink layer and a colored ink layer. CONSTITUTION:The requirement for a colored ink layer 3 is that it is melted easily and sharply by a heat and is excellent in the adhesion and fixation to an image receiving substance, and it contains a hot-melt substance (b), thermoplastic resin expressed by a formula (I) and a coloring agent. As to the hot-melt substance (b), carnauba wax, polyethylene was or the like whose melting point or softening point is 130 deg.C or below is preferable. The thermoplastic resin expressed by the formula (I) has a melting point approximating 60 deg.C irrespective of its molecular weight and its latent melting heat is small, thus making it possible to make thermal sensitivity sharp. The transparent ink layer 2 is set so that a part or the whole of it is transferred and that it acts for the protection of the surface of a transferred image and improves friction resistance, and has a construction wherein a hot-melt substance (a) effective for a thermal transfer property and thermoplastic resin effective for the friction resistance are contained while the coloring agent is not contained.
Patent JP-H03172546-A (JP)
Title: Shift controlling method of automatic transmission for vehicle
Inventor: FUJITA KENJIRO
IPC: B60W10/06
Filed: 1989-11-30
Abstract: PURPOSE:To secure good accelerability by forcing an output reducing operation into an end at a time when the specified time longer than that required for usual shift operation has elapsed since an output reducing start signal has been outputted, in a device which operates the output drop of an engine at time of shifting. CONSTITUTION:An automatic transmission 3 controls the selective engagement of each frictional engaging element according to an operating position of a select lever and a driving state of a vehicle via a hydraulic controller 105 on the basis of a command of a transmission control unit(TCU) 104, whereby various shift speeds are automatically settled. With ignition timing of a spark plug 126 regulated by an electronic control unit 106 through a distributor 133 during a speed change, output of an engine 1 is reduced. In this case, when the specified time longer than that required for usual shift operation has elapsed since a torque reducing start signal has been outputted to the ECU 106 from the TCU 104, a torque reducing operation is made so as to be compulsorily ended.
Patent JP-H11146687-A (JP)
Title: Motor analyzer
Inventor: MAEDA MITSUHIKO
IPC: H02P29/00
Filed: 1997-11-11
Abstract: PROBLEM TO BE SOLVED: To provide a motor analyzer, which can faithfully reproduce the waveform of actual magnetization of a magnet and use it for analysis merely by inputting a small number of parameters, and can get torque property extremely simply and besides with high accuracy. SOLUTION: The motor analyzer possesses a processing unit which executes the analysis of a magnetic field, based on input data, and computes torque generated by the analyzed magnetic field, and derives the torque properties of a motor, and in the device, a magnetization waveform function, which expresses the waveform of magnetization for one pole of a magnet, is defined. This magnetization waveform function is a function which selectively expresses the synthetic wave being created by the product of a sine wave, a trapezoid wave, a square wave, a triangular wave, or a sine wave and other some wave, according to the values of plural parameters, and the waveform of magnetization of the magnet used for analysis of a magnetic field can be changed by the input of parameters.
Patent JP-2000129368-A (JP)
Title: Operation of copper flash smelting furnace
Inventor: MARUYAMA TSUNEO
IPC: C22B15/00
Filed: 1998-10-29
Abstract: PROBLEM TO BE SOLVED: To adjust the operating temp. in a flash smelting furnace to a target value while keeping coke staying on a slag layer existing on a matte in a settler part to a prescribed quantity. SOLUTION: In an operating method of the copper flash smelting furnace, with which copper concentrate, coke, flux and the other charging material are injected together with air and oxygen by using a concentrate burner 9 from the top part of a shaft 2, the temps. of the produced molten matte 5 and/or the slag 6, are measured. The operating temp. of the flash smelting furnace is adjusted to the target operating temp. from these measured values by changing nitrogen in the mixed gas containing the air and the oxygen supplied into the furnace or adjusting hot blast temp. to which the mixed gas is preheated.
Patent JP-H07162400-A (JP)
Title: Optical communication method and optical communication system
Inventor: KOSUGI MASATO
IPC: H04B10/07
Filed: 1993-12-09
Abstract: PURPOSE:To frequently exchange connection without deteriorating real data transmission speed by specifying the phase of a clock at the time of receiving light signals and permitting the optical communication equipment of the other connection network to use a specified clock. CONSTITUTION:The optical transmission/reception device of an arbiter 122 receives the light signals from computer nodes 101-104 provided with the optical communication equipments and transmits the light signals to the respective nodes. The clock at the time of transmitting the light signals from the optical transmission/reception device to the respective optical communication equipments is set to be a reference clock. Signals obtained by comparing the received clock when the optical transmission/reception device receives the light signals from the respective optical communication equipments with the reference clock are transmitted from the optical transmission/reception device to the respective optical communication equipment. The respective optical communication equipments control a transmission clock based on the signals and the phase of the received clock in the optical transmission/reception device is set to become similar to that of the reference clock. The respective optical communication equipments in the different star-type connection network use the transmission clock executing the control and the received clock obtained by receiving the reference clock.
Patent JP-H11125717-A (JP)
Title: Polarizing element, polarized light source device and liquid crystal display device
Inventor: MOTOMURA HIRONORI
IPC: G02B5/30
Filed: 1997-10-22
Abstract: PROBLEM TO BE SOLVED: To obtain a polarized light source device and liquid crystal display device having excellent luminance and visibility by developing a polarizing element capable of obtaining linearly polarized light of a high degree of polarization exceeding 95% via circularly polarized light separating layers and a quarter-wave plate even if the thickness of cholesteric liquid crystal polymer layers is as thin as about 1 to 10 μm. SOLUTION: This polarizing element has the quarter-wave plate 3 via an adhesive layer 2 of n±0.2 in the refractive index to the average refractive index (n) of the cholesteric liquid crystal polymer layers on the circularly polarized light separating layers 1 consisting of one or >=2 layers of the cholesteric liquid crystal polymer layers, in which the liquid crystal polymers on the surface of the cholesteric liquid crystal polymer layer of the quarter-wave plate 3 side are in a non-oriented state at need. The polarized light source device has the polarizing element described above on the light exit side of a light transmission plate which emits the incident light from the flank fro m one of the upper and lower surface. The liquid crystal display device has a liquid crystal cell on the light exist side of the polarized light source device.  As a result, the bright liquid crystal display device having the excellent visibility in a diagonal viewing direction is obtd.
Patent JP-H05200808-A (JP)
Title: Method for controlling resin pressure of injection molder
Inventor: INABA ZENJI
IPC: B29C45/77
Filed: 1992-10-26
Abstract: PURPOSE:To prevent excessive pressure from applying to resin and molding failure from developing by a method wherein current command required for speed control is compared with current command required for pressure control at the changing over from speed control to dwell control so as to use the smaller one between the current command as the current command to a servo motor. CONSTITUTION:At the changing over from speed control to dwell control, when the current command required for speed control or output Vr from a filter 49 is small and does not exceed clamping voltage, the current command Vr required for speed control is adopted as it is as the current command to a motor. When the current command Vr required for speed control exceeds the clamping voltage, the output of an amplifier 51 turns to be the voltage determined by the pressure deviation of pressure control and adopted as the current command to the motor. Or, between the current commands required for speed control and for pressure control, the smaller one is outputted as the current command to the motor.
Patent JP-2000138651-A (JP)
Title: Communication equipment
Inventor: KAWABE MANABU
IPC: H04W88/02
Filed: 1998-10-30
Abstract: PROBLEM TO BE SOLVED: To reduce the scale of hardware by dividing modulation and demodulation processing in a base band part for every processing unit and processing plural channels in divided arithmetic units in time-multiplexing manner. SOLUTION: Symbol period arithmetic engines 403 are plurally provided in parallel or a slot period arithmetic engine 405 is operated faster than a frame period arithmetic engine 407. A block required for modulation/ demodulation processing is divided into each processing unit to allow the processing blocks to operate independent from each other. In addition, the received signals of the base band are stored in a first buffer memory 402 by the portion of several times of one symbol being the processing unit of the engine 403. Each engine is controlled by a control engine 401 and the respective engines 403, 405 and 407 asynchronously execute modulation/demodulation processing by the engine 401 and a channel to be processed is independent for every engine. Thus, the plural channels is highly efficiently modulated/ demodulated in time-multiplexing manner.
Patent JP-H01151021-A (JP)
Title: Optical pick-up
Inventor: AKIYAMA MAKOTO
IPC: G11B7/09
Filed: 1987-12-08
Abstract: PURPOSE:To stabilize a servo characteristic by providing a displacement detecting means to detect the displacement of an actuator at the actuator to drive a focus lens and positively feeding back the alternating current component of the output with a gain of one or below. CONSTITUTION:The output of a tracking sensor 2 to detect a tracking error on a disk is amplified by an amplifier 3, a high area compensating circuit 4, an adder 5 and an amplifier 6 and fed back to a tracking actuator 1d. The output of a displacement sensor (tracking direction) 7 to detect the mechanical displacement of a dumper 1b is amplified by an amplifier 8, a high pass filter 9, the adder 5 and the amplifier 6 and in the same way, fed back to the tracking actuator 1d. Thus, by positively feeding back the alternating current component of the output with a gain of one or below, the servo gain at the prescribed band can be secured without reducing the phase allowance of a servo loop. Thus, without being influenced by a posture difference, the equipment with a stable servo characteristic can be obtained.
Patent JP-H07170775-A (JP)
Title: Method and apparatus for controlling motor for positioning mechanism
Inventor: YAMAUCHI MAKOTO
IPC: H02P3/06
Filed: 1993-12-10
Abstract: PURPOSE:To stop a motor accurately at a desired position irrespective of changes in inertia of a mechanical system. CONSTITUTION:When a motor drive signal is sent to a motor driver 21 from a controller 10, a motor 1 is driven and rotates and a barrel 3 moves in the peripheral direction. If a motor stop signal is sent to the motor 1, the motor 1 and the barrel 3 rotate by their inertial and then stop. When the peripheral- direction position of the barrel is adjusted, the controller 10 finds a position shifted by an overrun from a target position as a stop signal output position, and sends a motor stop signal to the motor driver 21, when its present position reaches the stop signal output position. When the stop position is within a range of an permissible error from the target position being its center, the overrun of this time is also used in the next-time control period. If the stop position is not within the above-mentioned range, the overrun is changed by the difference between the stop position and the target position, and is used as an overrun for next-time control.
Patent JP-H03167649-A (JP)
Title: Wait cycle controller
Inventor: YOSHIMATSU NORIBUMI
IPC: G06F13/42
Filed: 1989-11-28
Abstract: PURPOSE:To perform the wait cycle control by providing a bus cycle deciding part, a cycle number register, a wait cycle number selection part, a wait cycle number detection part, and a comparator. CONSTITUTION:When the wait cycle frequency is equal to 1, a bus cycle deciding part 11 decides the type of the bus cycle from an address and a bus state signal 18 at the rise of a cycle T1. A wait cycle 0 detection part 14 selects the wait cycle number via a wait cycle number setting register 12 and gives an instruction to a ready signal generating part 17 to produce a ready signal 19 for single insertion. A CPU performs a single insertion at the rise of a cycle T2. A wait cycle number selection part 13 selects the cycle numbers received from the register 12 and decodes the selected cycle number. A comparator 16 ends the inserting action when the coincidence is secured between the input set value 1 and the counter value of the part 17. The signal 19 is kept at an L level with the wait cycle frequency 0. In such a constitution, the wait cycle is controlled and it is possible to cope with the high speed working of the CPU.
Patent JP-H01152204-A (JP)
Title: Nozzle for producing metal sphere
Inventor: KASHIWAGI KOZO
IPC: B22F9/08
Filed: 1987-12-08
Abstract: PURPOSE:To prevent icicle-state solidification of molten metal at the lower part of dropping hole by fitting a cylinder made of graphite, etc., into molten metal dropping hole of a nozzle and forming a passage of inert gas on the outer periphery at lower half part of the small diameter thereof. CONSTITUTION:The cylinder 10 made of graphite or alumina is fitted into the molten metal dropping hole 1 of the nozzle body 5. The annular vertical gas passage 11 is formed between the outer periphery at the lower half part of the small diameter thereof and the molten metal dropping hole 1 and horizontal gas passages 12 are bored in some directions on the outer periphery at middle part of the nozzle body 5. The molten metal is dropped from the cylinder 10 and the inert gas is injected from a gas injecting hole 9 and the dropped molten metal is divided into some pieces and rapidly cooled and solidified to obtain metal sphere. The inert gas is passed through the horizontal gas passages 12 and vertical gas passage 11 and injected and the dropped molten metal is prevented from the icicle-state solidification. Further, by vertically shifting the nozzle body 15, gas flow rate in the passage 11 is adjusted, and dispersion of the obtd. metal sphere is reduced.