baber/WOPTO huggingface dataset:
Patent JP-H0244536-A (JP)
Title: Optical memory element
Inventor: SUZUKI YASUZO
IPC: G11B7/24027
Filed: 1988-08-04
Abstract: PURPOSE:To detect recording information with high sensitivity by subjecting a twisted nematic liquid crystal phase reversibly molecular structure changes by light of different wavelengths. CONSTITUTION:A photochromic compd. is dissolved in the twisted nematic liquid crystal of the nematic liquid crystal phase twisted between two sheets of transparent substrates constituting the liquid crystal cell. The structure changes arising from the reversible photoreaction of the photochromic compd. are read out by converting the changes to the changes in the degree of optical rotation of the twisted nematic liquid crystal cell. The recording destruction by the reading out light is, therefore, obviated and the recording information is detected with the high sensitivity.
Patent JP-H0858731-A (JP)
Title: Packaging material-feeding/adjusting mechanism
Inventor: KADOTA NOBUFUMI
IPC: B65B41/00
Filed: 1994-08-19
Abstract: PURPOSE: To assuredly seal a sealing part which is set in advance, and prevent wrinkles from generating by a method wherein an actual sealing position of a packaging material which is fed to a packaging machine and the position of a sealing part which is set in advance are detected, and a feeding quantity of the packaging material is adjusted. CONSTITUTION: A mark A' for detection which shows a sealing part being set in advance on a packaging material A being fed to a packaging machine 1 is detected by a detecting unit 10 which is equipped with a photoelectric tube, and the feeding quantity of the packaging material A to the packaging machine 1 being normal or excessive is judged. Then, when the judgement at the detecting unit 10 is being excessive, the degree of the protruding of members 21'-21" for an adjusting unit 20 which is arranged in the vicinity of a gripping start by sealing bars 2a'-2a", 2b-2b" of the packaging material A is changed to adjust the feeding quantity of the packaging material A to the packaging machine 1 which starts a bag-making.  In this case, the packaging material A is fed slightly more than necessary to the adjusting unit 20, and there is no need to take a shortage in the feeding into consideration.
Patent JP-H0358614-A (JP)
Title: Semiconductor device
Inventor: TSUCHIYA YOSHIHIRO
IPC: H03K3/02
Filed: 1989-07-27
Abstract: PURPOSE:To prevent an erroneous signal from being outputted from an integration circuit when a power voltage is fluctuated by providing a power voltage detection circuit and a control circuit controlling the output of the integration circuit with the output of the power voltage detection circuit. CONSTITUTION:When power fluctuation takes place due to a heavy load or external noise, a pulse signal is outputted from an output terminal out of an integration circuit 5 similarly at the time of turning on a power supply. When a range of power fluctuation is over a detection voltage of a power voltage detection circuit 2, an H level (high level) is outputted at the output terminal out of the power voltage detection circuit 2. When the signal is inputted to an input terminal (c) of a control circuit 6, since the control circuit 6 inhibits the output of the signal at an input terminal (d) to the output terminal out, no pulse signal is outputted from the output terminal out of the control circuit 6. Thus, the effect onto other circuit is evaded and stable circuit operation is warranted.
Patent JP-H0359662-A (JP)
Title: Device for processing photosensitive material
Inventor: WADA YASUNORI
IPC: G03D5/00
Filed: 1989-07-28
Abstract: PURPOSE:To attain a stable development processing free from the uneveness of development by providing plural guiding means which hold a developing soln. and have the slits to allow the carrying of a silver halide photographic sensitive material in a carrying direction and providing heating means for heat insulating the developing soln. CONSTITUTION:The slits 4 formed on the guiding means 1 are formed to the width D slightly wider than the width of the silver halide photographic sensitive material 3 and the spacing L of the slits 4 is so set that the silver halide photographic sensitive material 3 can be inserted and transported terethrough and the supplied developing soln. can be held by surface tension. The heaters 6 as heating means are disposed in guide bodies 1a, 1b of the guiding means 2. The heat bodies 1a, 2b are heated by the heaters 6 so that the developing soln. held in the slits 4 is heat insulated. The developing soln. is, therefore, supplied uniformly to the exposed surface when the silver halide photographic sensitive material 3 is carried through the slits 4. Thus, the stable processing free from the uneveness of development is executed and the prescribed photosensitive material, such as sensitivity and gradation, are obtd.
Patent JP-H1015678-A (JP)
Title: Laser beam machine
Inventor: SAITO MINORU
IPC: B23K26/00
Filed: 1996-07-05
Abstract: PROBLEM TO BE SOLVED: To provide a laser beam machine enabling even a beginner to easily set the optimum value of machining conditions such as an excitation lamp current and scanning speed. SOLUTION: Preset in a table 22 for machining conditions are the optimum lamp current, scanning speed, Q-switch frequency, etc., (machining conditions) for the material and the desired finish shape of an object to be machined. With a user of the machine selecting a material and a desired finish shape applicable to the object, the corresponding machining conditions are read out from the table 22 and set in a part 27 for retaining conditions. The operation of a laser oscillator 1 is controlled by an operation controller 28 in accordance with the set machining conditions. The conditions can be corrected if desired, in which case corrected values can be overwritten on the table 22 and used in the next operation.
Patent JP-H0483758-A (JP)
Title: Production of sintered silicon nitride
Inventor: KAWAMOTO MITSURU
IPC: C04B35/58
Filed: 1990-07-24
Abstract: PURPOSE:To obtain a sintered silicon nitride having excellent uniformity and remarkably high density by cleaning silicon nitride powder with high-purity water to remove the surface impurities and improve the flowability of the powder and sintering the formed article of the powder. CONSTITUTION:Silicon nitride powder is washed with a high-purity water to remove impurities on the powder surface and modify the surface characteristics. The modified powder having improved flowability is filled in a forming mold in high density. The powder is compression-molded and sintered to obtain the objective sintered silicon nitride having excellent uniformity and remarkably high density.
Patent JP-H1137064-A (JP)
Title: Displacement type fluid machine
Inventor: MITSUYA SHIYUNICHI
IPC: F04C18/02
Filed: 1997-07-22
Abstract: PROBLEM TO BE SOLVED: To provide a displacement type fluid machine reduced in fluid loss in an intake process to the same degree as a scroll type fluid machine and higher,in intake efficiency than the scroll type fluid machine. SOLUTION: A displacer 5 and a cylinder 4 are arranged between end plates. When the center of the displacer 5 is aligned to the rotational center of a rotary shaft 6, one space is formed by the inner wall surface of the cylinder 4 and the external wall surface of the displacer 5, and when the position relation between the displacer 5 and the cylinder 4 is in a turning position, a plurality of spaces are formed.  In a displacement type fluid machine l of such constitution, the curves of the internal wall surface of the cylinder 4 and the external wall surface of the displacer 5 are so formed that a rotation angle θc of the shaft in a stroke from the end of intake to the end of discharge in the plurality of spaces satisfies ((N-l)/N).360 deg.<θc<=360 deg., where N is the number of protruding parts protruded inward into the cylinder 4, and intake ports 7a communicating with the plurality of spaces are formed in positions of connecting two confinement end points formed by the cylinder 4 and turning motion of the displacer 5 arranged in the turning position.
Patent JP-H1033928-A (JP)
Title: Powder recovering apparatus
Inventor: ISOBE HIDEYOSHI
IPC: B01D49/00
Filed: 1996-07-25
Abstract: PROBLEM TO BE SOLVED: To provide a powder recovering apparatus capable of effectively recovering a fine powder in air streams by a simple structure without using a filter and being accompanied by pressure loss. SOLUTION: In an apparatus recovering a powder 2 in air streams flowing through a pipeline, a liquid sprayer 4 spraying a liquid on the air streams in a mist form and a rotary disc 5 having a diameter almost same to that of a pipeline is attached to the pipeline on the downstream side of the liquid sprayer so as to oppose to the flow of air streams and liquid droplets containing the powder colliding with the rotary disc 5 are scattered by centrifugal force to recover the powder from the diameter enlarged peripheral wall part 7 through a recovery duct 8.
Patent JP-H0246101-A (JP)
Title: Controller for electric vehicle
Inventor: ENDO NORIO
IPC: B60L3/00
Filed: 1988-08-08
Abstract: PURPOSE:To facilitate operation when feeder voltage is applied again by closing a main circuitbreaker on condition that the feeder voltage is higher than a predetermined level, the speed of an electric vehicle is lower than a predetermined level and the main handle of a main controller is at OFF position. CONSTITUTION:When a pantograph is risen and a switch PanUSW is pushed, a pantograph rise relay PUR.c is excited to closed a contact PUR.a. Consequent ly, a pantograph solenoid valve PanV is excited to rise a pantograph Pan. When feeder voltage is applied, a feeder voltage relay LVR.C is excited. When the speed of an electric vehicle is lower than a predetermined level, a speed relay LSD.C is turned OFF. If the main handle MC of a main controller is at OFF position, under this condition, a main circuitbreaker is closed. Upon interruption of feeder power, the feeder voltage relay LVR.C is turned OFF to open the main circuitbreaker. When the feeder voltage is applied again, the main circuitbreaker VCB is closed again under same condition.
Patent JP-S5986641-A (JP)
Title: Rubber composition
Inventor: SUZUKI HIROAKI
IPC: C08L21/00
Filed: 1982-11-10
Abstract: PURPOSE:To provide a rubber compsn. which has both suppressed heat generating properties and enhanced reinforcing properties and improved kneading extrusion processability and is suitable for use in the production of various rubber goods such as automobile tire, by blending carbon black having selected characteristics. CONSTITUTION:From among furnace blacks having an electron microscopic average particle size (dn) of 31mmu or above, an iodine absorption of 40-60mg/g and a DBP oil absorption of 90-150ml/100g, the one having a Dst mode diameter (mmu) of a value as defined by the formula [2.65(dn)+0.64(DBP)-27.56] or below is used. 25-250pts.wt. said carbon black is blended with a rubber component to obtain the desired rubber compsn.
Patent JP-H0516172-A (JP)
Title: Metal mold and method for molding plastic product integrated with synthetic leather
Inventor: TAKAHASHI MISAO
IPC: B29C45/26
Filed: 1991-07-11
Abstract: PURPOSE:To prevent the extended or melted part of synthetic leather from creeping to a cloth material even when the synthetic leather is extended or melted by heating at the time of the injection molding of plastic to the synthetic leather. CONSTITUTION:A metal mold wherein the gap part communicating with the peripheral edges of the mold parts of a pair of female and male mold main bodies is formed is used and synthetic leather 9 is arranged on the mold opposite to the mold in which a plastic material 10 is injected so that the cloth material thereof is turned toward the mold in which the plastic material 10 is injected and, thereafter, the plastic material 10 is injected according to a usual method to be molded. By this constitution, even when the synthetic leather 9 is extended or melted, the extended or molten part enters the gap part to be prevented from creeping to the cloth material.
Patent JP-H1094246-A (JP)
Title: Power-factor compensated power supply
Inventor: SAI RAKUSHUN
IPC: H02M7/217
Filed: 1997-07-22
Abstract: PROBLEM TO BE SOLVED: To obviate a loop circuit that exercises input voltage feed forward control and achieve high power-factor compensation through simple circuitry in continuos current mode(CCM) control. SOLUTION: A boost converter 10 turns on/off through an inductor L and a switching transistor 12 an input current obtained by subjecting an alternating current to half-wave and full-wave rectification. Energy accumulated in the inductor L when the switching transistor 12 is on, is supplied as boosted output voltage Vo to a load 14 through a diode D1 when the switching transistor 12 is off. A high power-factor compensation circuit 20 compares a voltage for comparison, obtained by processing an error voltage detected from the output voltage Vo applied to the load 14 and a detection voltage obtained by detecting an input current passed through the inductor L when the switching transistor 12 is on, with reverse sawtooth waves, and thereby controls the offtime of the switching transistor 12.
Patent JP-S5897118-A (JP)
Title: Magnetic head
Inventor: HOSOKAWA MINORU
IPC: G11B5/127
Filed: 1981-12-07
Abstract: PURPOSE:To avoid the reduction in the S/N and attenuation of a reproduced signal due to an external magnetic field, by providing the 2nd and 3rd magnetic cores in opposition to a clipped magnetic recording medium, in a magnetic head having a main magnet pole and the 1st magnetic cores clipping the magnetic recording medium. CONSTITUTION:Magnetic heads 202, 203 are arranged to clip a medium 201 and a pair of the heads form one magnetic head. The 2nd and 3rd magnetic cores 207, 208 are arranged at the outside of the magnetic core 205 provided in opposition to a main magnetic pole 204 made of a high permeability magnetic thin film so as to clip the medium 201, and an equivalent magnetic reluctance of a gap between opposing surfaces of the main magnetic pole 204 and the magnetic core 205 is made larger than that of the gap between the opposing surfaces of the cores 207, 208, then in flowing a recording current to coil 206, magnetic paths A, B are formed via the medium between the heads 202 and 203, the magnetic field near the magnetic pole 204 at the path A is made very higher, allowing to perform magnetizing recording on the medium 201.
Patent JP-H0539952-A (JP)
Title: Hot water feeding device with additional boiling function
Inventor: ADACHI IKURO
IPC: F23N5/00
Filed: 1991-08-06
Abstract: PURPOSE:To simplify an ignition control and reduce a cost as much possible by a method wherein as an instruction for terminating a hot water feeding operation is given during an additional boiling ignition operation while the hot water is being fed, the additional boiling ignition during the hot water feeding is stopped, an ignition step for an additional single igniting function is utilized to start the additional boiling ignition operation. CONSTITUTION:As an instruction for stopping a hot water feeding operation is given during an additional boiling ignition operation while a hot water feeding operation is being carried out, the hot water feeding operation and the additional boiling ignition operation are stopped. That is, an electrical energization for the electrical functional parts relating to the hot water feeding operation and the additional boiling single ignition function such as a sparking device 209, a main solenoid valve 302, a proportional valve 303, the first and second hot water feeding opening or closing valves 304, 305, an additional boiling opening or closing valve 306, a hot water feeding solenoid valve 408 and a circulation pump 504 or the like is stopped. Then, the additional boiling ignition operation is started from the initial ignition step under an ignition operation of an additional, single igniting function 604a. The number of rotation of the blower 206 and a degree of opening of the proportional valve 303 are controlled in such a way as the maximum combustion is performed by the additional boiling burner 205.
Patent JP-S6352469-A (JP)
Title: Electrostatic breakdown preventing device for semiconductor integrated circuit device
Inventor: KATO SHUICHI
IPC: H01L21/331
Filed: 1986-08-21
Abstract: PURPOSE:To improve the electrostatic breakdown resistance by providing an electrostatic breakdown preventing diode having part of a semiconductor substrate as an anode and an electrostatic breakdown preventing transistor of vertical structure having a part of the substrate as an emitter, part of the cathode of the diode as a base and part of a current limiting resistor as a collector. CONSTITUTION:When a positive surge voltage is applied to an input terminal 11, a surge current is limited by a current limiting resistor 14, and the flows to an input N-P-N transistor 15. Since the transistor 15 is forwardly biased at base-emitter junction and base-collector junction at this time, a surge resistance is high to avoid its electrostatic breakdown. When a negative surge voltage is applied to the terminal 11, a discharge occurs from a power terminal VEE to the terminal 11 by a static electricity 12, and a discharge also occurs by an electrostatic breakdown P-N-P transistor 13 from the terminal VEE to the input terminal. Since the current flowing to the transistor 15 and the resistor 14 is largely reduced by this discharge, the transistor 15 is immunized against the electrostatic breakdown.
Patent JP-H0641107-A (JP)
Title: Production of @(3754/24)3r,4r)-3-hydroxy-4-hydroxymethyl-4-butanolide
Inventor: MATSUMOTO KATSUYA
IPC: C07H3/10
Filed: 1992-07-23
Abstract: PURPOSE:To easily and selectively produce the compound from an easily available raw material in a high yield. CONSTITUTION:The (3R,4R)-3-hydroxy-4-hydroxymethyl-4-butanolide of formula VI can be produced by reducing the 2-carbonyl group of a levoglucosenone of formula I easily available as a thermal decomposition product of cellulose to obtain a compound of formula II having beta-configuration hydroxyl group, adding a configuration iodine group to the 4-site and beta-configuration acyloxy ion to the 3-site of the double bond of the compound by trans-addition reaction, hydrolyzing the acyloxy group in the presence of a base, oxidizing the 2-hydroxyl group of the resultant compound of formula III having oxirane ring at beta-configuration, reductively opening the oxirane ring of the produced compound of formula IV to obtain the compound of formula V unsubstituted at 3-site and having beta-configuration hydroxyl group at 4-site and, finally, subjecting the compound of formula V to Baeyer-Villiger oxidization.
Patent JP-2001023213-A (JP)
Title: Tilt control method and optical disk device
Inventor: KASHIWABARA YOSHIRO
IPC: G11B19/20
Filed: 1999-07-12
Abstract: PROBLEM TO BE SOLVED: To provide a tilt control method and an optical disk device capable of stably reading out data by appropriately performing the tilt correction to the skewness generated by the face wobbling of an optical disk and suppressing the generation of jitter. SOLUTION: A focus control signal changing in correspondence one to one to the change of tilt amount due to the face wobbling of the optical disk 1 is inputted to a tilt control circuit 12, and by means of performing the operational control of a tilt correction mechanism 8 by the tilt control circuit 12 based on the focus control signal, the correction corresponded to the tilt amount is surely performed, and the tilt is eliminated or the influence of the tilt is evaded, then the generation of the jitter is suppressed also for the face-wobbled optical disk 1 so that the data are stably read out.
Patent JP-H1139889-A (JP)
Title: Data writing method of non-volatile memory medium
Inventor: FUKUDA TATSUYA
IPC: G11C16/02
Filed: 1997-07-23
Abstract: PROBLEM TO BE SOLVED: To suitably protect data even if irregularity is generated during the write operation by writing an update data to a data storing area where the latest data is not stored while condition data is being set to each condition data storing area depending on the data erasing and writing operation. SOLUTION: A data storing area for storing data to each storing area 2P, 2Q and a condition data storing area for storing the condition data showing the condition of the storing areas 2P, 2Q are defined in a flash ROM2. When the update data is newly written, the condition data in the condition data storing area is updated depending on the data erasing and writing operations of the storing areas 2P, 2Q. Next, the update data is written to the data storing area where the latest data is not stored. Thereby, even if irregularity such as power failure is generated during the data erasing and writing operations, both data before and after the update are never lost.
Patent JP-S6256860-A (JP)
Title: Easy discrimination method for contamination of processing liquid
Inventor: TAKECHI KANETAKA
IPC: G01N33/00
Filed: 1985-09-06
Abstract: PURPOSE:To quickly and easily discriminate the contamination of a processing liquid in processing of a silver halide color photosensitive material by using ion test paper for discriminating the effectiveness of the processing soln. substitutive for a washing process. CONSTITUTION:A change appears in the ion test paper simply by immersing the test paper in the processing liquid for a short period if image deterioration arises in the processing soln. On the other hand, no change appears in the ion test paper in the case of the processing liquid with which the image deterioration is not observed. The ion test paper is used to discriminate the effectiveness of the processing liquid, by which the contamination of the processing liquid is quickly and easily discriminated without the need for the content analysis of the processing liquid or the empirical judgement requiring skill.
Patent JP-S6089509-A (JP)
Title: Production of pulverous copper powder
Inventor: YOSHIDA SHINICHI
IPC: B22F9/24
Filed: 1983-10-21
Abstract: PURPOSE:To produce fine granular copper at a high yield by bringing powder of crude copper into reaction with bivalent ionic copper salt in the presence of ligand to form soluble univalent copper complex and desorbing the ligand from the complex. CONSTITUTION:Coarse granular Cu having 50-200mum size is put into water or a polar solvent such as methanol, ethanol or the like and is brought into reaction with bivalent ionic copper salt such as cupric nitrate, etc. in the presence of ligand consisting of an unsatd. compd. of ethylene, propylene, butane, etc. Soluble univalent copper complex having <=1mol/l concn. and a small amt. of sludge by the copper oxide in the raw material are formed in the above-mentioned solvent. After the sludge is filtered off, the solvent is vigorously stirred under the reduced pressure to desorb the ligand of ethylene, propylene, etc. to form the pulverous copper having <=30mum max. diameter and thereafter the copper is separated from the soln. and the pulverous copper is recovered at a high yield.
Patent JP-H0945138-A (JP)
Title: Steel core aluminum twisted wire for prefabricated overhead wire
Inventor: KIKUCHI HITOSHI
IPC: H01B5/10
Filed: 1995-08-02
Abstract: PROBLEM TO BE SOLVED: To surely transfer the external pressure applied to the outer layer of a steel core aluminum twisted wire for a prefabricated overhead wire to an inner layer side. SOLUTION: An outer layer 6 twisted with multiple aluminum strands 5 is provided on the periphery of an inner layer 2 twisted with multiple steel strands 1 to form a steel core aluminum twisted wire for prefabricated overhead wire, and the aluminum strand 5 has a fan-shaped cross section. The downward opening angle of the aluminum strand 5 is formed wide so that only the outermost peripheries of adjacent aluminum strands 5 are brought into line contact with each other.