baber/WOPTO huggingface dataset:
Patent JP-S5718033-A (JP)
Title: Reproducing device for optical information recording medium
Inventor: TAJIMA OSAMU
IPC: G02B7/28
Filed: 1980-07-04
Abstract: PURPOSE:To increase the sensitivity of detection for a focus control signal, by projecting the control signal detecting beam only to a part of a lens aperture which is opposite to a recording medium. CONSTITUTION:The light given from a light source 1 is divided into three beams through a trapezoid prism 20, and the shape of the prism 20 is selected so as to project the beams from imaginary light sources 1R and 1L on only a partial region of a condenser lens 5. The beams from these light sources are reflected on a disk surface 6 and condensed at a detector 7 plus divided detectors 8 and 9 through a half-mirror 4. The cross-section of the condensed beam led to the divided detector is almost semicircular, and the right and left become adverse to each other before and after the focal point. Accordingly even a slight shift of focus increases the output of difference signal of component detectors 8o, 8i, 9o and 9i. Furthermore the shifting directions of beams caused by the shift of focus are reverse to each other on the divided detectors. Thus a large focus control signal is obtained at a terminal 30.
Patent JP-H10263387-A (JP)
Title: Electronic treatment of water and moisture-containing material
Inventor: MATSUNOBU KENJI
IPC: A23L5/30
Filed: 1997-03-26
Abstract: PROBLEM TO BE SOLVED: To improve the effect of reforming water by impressing continuous electron pulses having negative waveform components on water and an object containing moisture, thereby not only reforming the molecular population structure of the water but injecting electrons into the many electron traps existing in the water to form the electron-rich water. SOLUTION: A negative electron pulse generating circuit converts the current flowing from a commercial frequency power source 1 to a DC current in a rectifying circuit 2. The DC current is chopped by an oscillation circuit 3. The chopped currents are amplified by an amplifier circuit 4 and, for example, the output corresponding to a rising rate of 10000 kHz at 400 kilopulses/second is generated by the high-frequency negative pulses of -38 V in peak voltage and -8 V in average DC-component. A vigorous microstirring effect is exerted on the dipole moment of H2 O, dissolving component NaHCO3 , etc., having various polarities and various kinds of water-soluble ions, etc., included in the water by such electron pulse power source, by which the effect of reforming the water is enhanced.
Patent JP-S59218403-A (JP)
Title: Magnetic glass coated optical fiber and its production
Inventor: ONO KENICHI
IPC: G02B6/00
Filed: 1983-05-26
Abstract: PURPOSE:To attain a magnetic glass coated optical fiber which has a high adhesive strength to an optical fiber and can detect a magnetic field at a high temperature, by coating a magnetic glass around an optical fiber strand and precipitating an oxide magnetic crystal in the coating layer. CONSTITUTION:A glass pulverized material is melted and softened in a melting chamber 1 and is charged into a coating crucible 4 through which an optical fiber strand 3 subjected to wire drawing passes. The magnetic glass is coated around the optical fiber, which is taken out from a through hole 5 of the coating crucible, uniformly with a prescribed thickness. This magnetic glass coated optical fiber 6 is allowed to pass through a heat treatment furnace thereafter to precipitate the oxide magnetic crystal sufficiently in the coating glass. The temperature in this heat treatment is 500-1,300 deg.C. For the purpose of coating the magnetic glass around the optical fiber strand uniformly with a required thickness, it is desirable that the quantity of a mixture in the coating crucible 4 is controlled to be constant.
Patent JP-H0717710-A (JP)
Title: Stabilized sodium percarbonate particle and its production
Inventor: KOKUBU JUN
IPC: C11D7/54
Filed: 1994-04-28
Abstract: PURPOSE:To improve solubility and stability by coating the surface of sodium percarbonate particles with a combination of silicate, magnesium sulfate, and bicarbonate of alkali metal. CONSTITUTION:Each solns. of silicate (B), magnesium (C), and bicarbonate of alkali metal (D) are prepared in such a manner that the coating amts. of these compds. are 0.01-0.06mol (B) calculated as SiO2, 0.006-0.06mol (C), and 0.05-0.25mol (D) to one mole of sodium percarbonate particles (A). Then the soln.(B) is sprayed onto particles (A) heated at 40-95 deg.C and dried to form a first coating layer, and then a mixed aq. soln. of solns. (C) and (D) is sprayed and dried to form a second coating layer. Thus, stabilized sodium percarbonate particles are produced.
Patent JP-H11289673-A (JP)
Title: Control method of parallel power supply system
Inventor: ASHIHARA KIICHI
IPC: H02J3/38
Filed: 1998-04-03
Abstract: PROBLEM TO BE SOLVED: To prevent reverse power transmission trip and reverse power trip, by controlling power generation within a specific low output range based on the value of generation power and reception power when the generation power becomes a specific value or less, while the reception power from the outside and self-generated power are supplied to a factory or the like in parallel. SOLUTION: When generation power is 1,110 kW or less, control functions for separating from normal control. On the other hand, the governor of a gas turbine is reduced and increased when the power exceeds 700 kW and is equal to or less than 400 kW, respectively, the speed of the gas turbine is adjusted, and the power is controlled to a low output range of 400-700 kW. The low output range is set to 700 kW or less to prevent reverse power transmission trip. The low output range is set to 400 kW or more to prevent reverse power trip to a generator for securing stable output. When the governor is increased or decreased, an ON state of 20 seconds and an OFF state of several seconds are repeated by a timer circuit to prevent the rapid change of output.
Patent JP-S58208149-A (JP)
Title: Opaline frit for dry casting
Inventor: OOSUMI KATSUYOSHI
IPC: C03C3/089
Filed: 1982-05-28
Abstract: PURPOSE:To obtain opaline frit having superior performance, by using the 1st group of components consisting of specified amounts of SiO2, ZrO2, TiO2, B2O3 and an alkali metallic oxide and the 2nd group of components consisting of a fluorine component and oxides including P2O5 as principal components. CONSTITUTION:This opaline frit for a dry casting is composed essentially of the 1st group of components consisting of, by weight, SiO2, 2-15% ZrO2, 12-25% TiO2 (SiO2+ZrO2+TiO2=50-80%), 5-30% B2O3 and 5-30% alkali metallic oxide and the 2nd group of components consisting of a fluorine component and oxides including P2O5. The amount of each of the fluorine component and P2O5 is 0.5-10pts.wt. per 100pts.wt. of the 1st group of components. The oxides in he 2nd group are Al2O3, ZnO, MgO, CaO, BaO and SrO besides P2O5.
Patent JP-S59216281-A (JP)
Title: Optical character reading device
Inventor: OOTA NAOKI
IPC: G06K9/00
Filed: 1983-05-25
Abstract: PURPOSE:To detect character area on an object to be read in real time and to shorten a time for detection by storing output of a reading section of each unit period in a memory and performing arithmetic processing for stored data of unit period. CONSTITUTION:A postal matter P is carried in the direction of the arrow (a), and the first reading section 1 is provided at a position corresponding to the carrying passage. The reading section 1 consists of a CCD2, an image-forming lamp 3, an illuminating lamp 4, a reflection mirror 5 and condenser lenses 6, 7 and scans the postal matter p at right angles to the direction of carrying (a). A label L or window frame W on the postal matter P is detected by applying the output A of the reading section 1 to a character position detecting section 20, and a reading field controlling signal B is applied to a movable mirror 13 of the second reading section 11. The reading section 11 is placed on the carrying passage of postal matter P and the postal matter P is scanned at right angles. The output of the reading section 1 for each unit period is stored in the memory of the detecting section 20. The stored data for unit period are operated and the signal B is given to the reading section 11. Thus, the time for detection in a character recognizing section 30 is shortened.
Patent JP-H10282667-A (JP)
Title: Pattern forming material and pattern forming method
Inventor: TSUCHIYA HIROKO
IPC: G03F7/004
Filed: 1997-04-10
Abstract: PROBLEM TO BE SOLVED: To obtain a material which is made transparent in a far UV region and has high resistance against dry etching and solubility in water-based alkali by incorporating a resin soluble in a water-based alkali, an acid-producing compd. and a compd. having reactivity to decrease solubility of a coating film in an alkaline soln. by acid catalyst reaction. SOLUTION: The pattern forming mateal contains an alkali-soluble resin containing carboxylic acid in side chains, a compd. which produces acid by irradiation of active chemical rays, and a compd. having reactivity which decreases solubility in an alkaline soln. by acid catalyst reaction. As for the compd. which produces acid by active chemical rays, various kinds of diazonium salts, onium salts, esters of alkyl sulfonic acid and compds. containing plural phenol-type hydroxyl groups, and various halogen compds, can be used. The compd. having reactivity which decreases soubility in an alkaline soln. by acid catalyst reaction is preferably a deriv. of aliphatic hydrocarbon compd. having at least one alcohol-type hydroxyl group.
Patent JP-H07295453-A (JP)
Title: Cleaning blade
Inventor: MIKI TAKASHI
IPC: G03G15/16
Filed: 1994-04-28
Abstract: PURPOSE:To provide a cleaning blade which is not reversed at the time of use and has excellent durability by joining an elastic blade onto a holder and dispersing fine drops of a mold release agent on the elastic blade. CONSTITUTION:The cleaning blade is manufactured by joining an elastic blade 3 onto a holder 4 and fine drops of a mold release agent are dispersed on the elastic blade 3. To join the elastic blade 3 onto the holder 4, an adhesive is used normally. To improve the adhesion strength between the elastic blade 3 and the holder, an elastic blade 3 with a layered structure formed by uniting an elastic layer 1 in which fine drops of a mold release agent are dispersed and an elastic layer 2 for which no mold release agent is used, may be joined onto the holder 4 while the elastic layer 2 for which no mold release agent is used being set to face the holder 4. The particle size of the fine drops of the mold release agent is set to be 0.1mum and less, preferably 0.2mum and less, and 10mum or more, preferably 5mum or more.
Patent JP-S5215946-A (JP)
Title: Generator utilizing temperature difference
Inventor: IWAMOTO TOSHIO
IPC: F03G7/05
Filed: 1975-07-30
Abstract: PURPOSE: A gnerator utilizing temperature difference, that enables to use comparatively low temperature thermal source by resolving metal hydrides. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H1047279-A (JP)
Title: Two-stage pump device
Inventor: SUZUKI MASAHARU
IPC: F04C23/00
Filed: 1997-04-10
Abstract: PROBLEM TO BE SOLVED: To prevent the occurrence of cavitation, and avoid generation of a noise and a cause of failure by arranging a fixed volume pump on the delivery side of a centrifugal pump, arranging a pressure adjusting valve between the delivery side of this fixed volume pump and the delivery side of the centrifugal pump, and integrally constituting the centrifugal pump, the fixed volume pump and the pressure adjusting valve. SOLUTION: A cascade type impeller 12 is fixed by a key 13 to a rotary shaft 10 in a housing 11 of a centrifugal pump 1, and an inner roller 15 and an outer roller 16 are arranged in a housing 14 of an internal gear pump 2, and the inner roller 15 is fixed to the rotary shaft 10 by a key 17. The centrifugal pump 1 and the internal gear pump 2 are formed as an integral structure by connecting its housings 11 and 14 to each other by a bolt 19 together with a cover 18. A pressure adjusting valve 3 is fixed to the housing 11 of the centrifugal pump 1 by a bolt, and is also formed as an integral structure. A flange in which the housing 14 of the internal gear pump 2 is arranged is fixed by a bolt 22 to a motor flange 21 of an electric motor to drive the rotary shaft 10.
Patent JP-H01263255-A (JP)
Title: Aluminum-zinc alloy hot dipping method with high coating weight
Inventor: SUZUKI YOICHIRO
IPC: C23C2/02
Filed: 1988-04-14
Abstract: PURPOSE:To prevent corrosion due to salts and acid rain by subjecting a material to be plated to hot dip galvanizing at the prescribed temp. and then to air cooling to accelerate the formation of a zeta-layer and further subjecting the resulting plated material to galvanizing under the prescribed conditions to increase the plating-layer thickness. CONSTITUTION:Plating is applied to the surface of a metallic material body by using a hot dip galvanizing bath of 430-480 deg.C bath temp. The resulting plated material is subjected to air cooling or semi-air cooling, by which the formation of zeta-layer is accelerated. Subsequently, plating is further applied to the above by using a molten Zn bath containing >=0.1% Al at 390-460 deg.C bath temp.
Patent JP-H06279123-A (JP)
Title: Silicon nitride sintered compact and its production
Inventor: YAMAGATA SHINICHI
IPC: C04B35/626
Filed: 1993-03-26
Abstract: PURPOSE:To provide a silicon nitride sintered compact having satisfactory strength as a structural material for machine parts used in the temp. range from ordinary temp. to a medium or high temp. and ensuring little unevenness in the strength. CONSTITUTION:A powdery mixture consisting of silicon nitride powder having a controlled particle diameter and >=50% rate of alpha-crystallization and a powdery sintering aid and not contg. particles having >30mum max. particle diameter is compacted to >=45% relative density and successively subjected to preliminary sintering to >=80% relative density at a temp. below the beta-transformation temp., primary sintering at the p-transformation temp. or above and >=40% rate of alpha-crystallization and secondary sintering in gaseous nitrogen under >=10atm pressure. This secondary sintering is carried out so that an alpha-phase remains and the objective silicon nitride sintered compact is produced. This sintered compact has >=99% relative density, <=10mum average major axis size of columnar crystals of beta-phase silicon nitride, <=30mum max. size of impurities, pores or abnormally grown silicon nitride grains existing in the interior and >=1,000MPa three-point bending strength in the temp. range from room temp. to a medium or high temp.
Patent JP-H06281587-A (JP)
Title: Defect detecting method for transparent plate like body
Inventor: YAMAUCHI HIDEO
IPC: G01N21/958
Filed: 1993-03-26
Abstract: PURPOSE:To detect a defect with high sensitivity by arranging a scattered-light reflecting place at the rear of a body under inspection viewed from an emitted beam, and detecting the reflected light beam from the defect with a light receiving optical system on the same axis of the light beam from the light emitting side. CONSTITUTION:An emitted light beam B is introduced into an optical axis A-A' through a small reflecting mirror M and a rotary mirror RM. A scattering reflecting plane SC is provided at the rear of a body under inspection K. A lens L codenses the reflected light from the reflecting plane SC on a photodetector D. The reflected light of the beam B from the reflecting plane SC is cut off with a cut-off plate ST, which is arranged at the position of the conjugate focal point with the reflecting plane SC. Only scattered reflected light of a defect KB is detected with the photodetector D. Thus, the inspection of the defect of a transparent plate-shaped body can be quickly performed with high sensitivity.
Patent JP-H08281039-A (JP)
Title: Air cleaner
Inventor: OCHI ATSUNORI
IPC: B01D47/06
Filed: 1995-04-18
Abstract: PURPOSE: To obtain high dust collecting and sterilizing capacity with a small- sized and simple structure in a wet type air cleaner using washing water. CONSTITUTION: In a scrubber 2, a washing chamber 4 and a water tank 5 are installed in the upper and the lower parts thereof respectively. In the upper part of the washing chamber 4, spray nozzles 6 are installed. Contaminated air introduced from an air introducing port 7 comes into contact with washing water mist to collect the contaminant, and the purified air is discharged from a discharge duct 9. Outside the scrubber 2, a circulating feed pass 13, an ejector 12, and a high pressure line 14 are installed to circulate a washing water W in the water tank 5. The ejector 12 is constituted of a nozzle part 16, a suction mixing part 20, a diffuser part 18 and the like, and an ozonizer 21 is connected to a suction port 20a of the suction mixing part 20.  In the ejector 12, the washing water W from the nozzle part 16 is jetted, and ozonized air is sucked in by negative pressure generated at that time to mix the washing water W and the ozonized air and be made in fine mist.
Patent JP-H03290770-A (JP)
Title: Graphic recognizing device
Inventor: HAYASHI ITSUO
IPC: G06N3/00
Filed: 1990-04-09
Abstract: PURPOSE:To enable a high-speed processing and to reduce the influence of noise by parallelly providing plural picture processing boards respectively connecting plural light receiving elements and plural light emitting elements by electronic circuits, and optically connecting these plural picture processing boards. CONSTITUTION:On the upper surfaces of respective picture processing boards 11-14, plural light receiving elements 111-141 are arranged and on the lower surfaces, the same number of light emitting elements are respectively provided at positions facing to these light receiving elements. Then, the light receiving elements 111-141 and the light emitting elements are mutually connected through the electronic circuits to execute signal processings. The picture processing boards 11-14 are arranged so that the respective main surfaces can be mutually parallel, and the respective picture processing boards 11-14 are optically connected through a space to the other picture processing board by either the light emitting elements or the light receiving elements 111-141 at least. Thus, a graphic recognizing device to enable the high-speed processing and to be hardly affected by the noise can be obtained.
Patent JP-H05261517-A (JP)
Title: Manufacturing device of super magneto-striction alloy material
IPC: B22D23/06
Filed: 1992-03-19
Abstract: PURPOSE:To obtain a unidirectional solidification structure and an excellent magneto-striction property and prevent generation of cracks and blowholes of ingot by forming a refractory layer of the specific content on the surface of the upper inner wall of a casting mold made of steel where the molten metal exists. CONSTITUTION:Materials 5 to be blended are melted by a plasma flame 7, and a melting part 8 is formed to the upper part of a cylindrical refractory 3. A bottom base 4 is lowered by a lowering device, and the solidified super magneto-striction alloy material 9 is continuously drawn out of the lower part of a water-cooled mold. The cylindrical refractory 3 is composed of rare metal- oxygen ceramics, or rare metal-fluorine ceramics, and structured so as to be inserted into the water-cooled mold to enable hanging. The water-cooled mold is provided with a water passage 10 therein, the cooling water is press-fed from a water-supplying port 11, discharged from a discharging port, and is designed so as to mainly cool the solidified super magneto-striction alloy material 9 and the bottom table 4.
Patent JP-S57207105-A (JP)
Title: Charging method for raw material into bell-less type blast furnace
Inventor: KAJIWARA YOSHIMASA
IPC: C21B7/20
Filed: 1981-06-16
Abstract: PURPOSE:To distribute raw materials uniformly in a furnace by supplying a part of the raw materials from a subsupply passage connected to a main supply passage which communicates a hopper and a distributing chute. CONSTITUTION:One end of a subsupply passage 12 is connected to a main supply passage 11 which connects a hopper 5 for storage of raw materials and a distributing chute 9. A screw 13 which is revolved by a motor 14 is provided in the passage 12, and the subraw materials (b) in a subhopper 15 are fed successively by each small amt. into the passage 11 in conformity with the charging time of main raw materials (a) by revolving the screw 13, whereby the subraw materials are mixed with the main raw materials (a). According to this charging method, it is possible to mix a small amt. of the materials (b) thoroughly with the materials (a) and to disperse and charge these uniformly into the furnace.
Patent JP-S60235626-A (JP)
Title: Level controlling process of absorption tower in stack gas desulpfurization apparatus for wet slaking gypsum production
Inventor: KOUNO SUSUMU
IPC: B01D53/34
Filed: 1984-05-09
Abstract: PURPOSE:To control the level of an absorption tower at a fixed level for the sudden change of a boiler load by inputting the measured signal of the boiler load or fuel flow rate into a function generator and operating a control valve provided in a pipe line for discharging the washing liq. from the absorption tower with the output signal from the function generator and a level controller. CONSTITUTION:The load of a boiler 11 is sensed by a sensor 12 and the signal is fed to the function generator 12 generating a function expressed by the relation between the boiler load and the total amt. of absorbent of the absorption tower and make-up water. An amt. of CaCO3 as the absorbent equivalent to the amt. of absorbed SO2 is fed to the washing liq. in the absorption tower 3 from a pipe 7. The level of the washing liq. in the absorption tower 3 is sensed and fed to a level sensing controller 9. The sensed signal and the output signal from the function generator 12 are added in an adder 14, and a control valve 10 provided to a pipeline 8 for discharging the washing liq. from the absorption tower 3 is operated by the output signal from the adder 14. Thus, the level of the absorption tower is held at an almost fixed level.
Patent JP-H02271352-A (JP)
Title: Image forming method
Inventor: SATO KIYOSHI
IPC: G03C5/31
Filed: 1989-04-11
Abstract: PURPOSE:To enhance stability of a developer and to restrain occurrence of uneven development by reducing the contact angle between a photosensitive material and the developer to a specified value or less. CONSTITUTION:The photosensitive material 4 having hydrophilic colloidal layers on both sides of a support is fed with the developer from feed nozzles 6, 7, and 8, and developed without immersing it in the developer. At that time, the contact angle between the photosensitive material 4 and the developer is regulated to <=20 deg. by adjusting the surface tension of the developer by using a surfactant, such as hexaglyceryl pentaoleate. Hydroquinones can be used for the developer, and when needed, a 3-pyrazolidone type developing agent, a dialdehyde type hardener, imidazole type and the like antifoggants, a chelating agent, and the like.
Patent JP-H09283103-A (JP)
Title: Battery pack
Inventor: KAWABATA KATSUHIKO
IPC: H01M2/10
Filed: 1996-04-15
Abstract: PROBLEM TO BE SOLVED: To provide a battery pack which can save the labor and time required for manufacturing by eliminating the previously used temporary fixing using a rubber band, a tape or the like when two cases are bonded together by means of adhesives. SOLUTION: A battery pack is composed of a battery case and a battery contained therein. A battery case is formed to be separated into two cases, and is constituted by bonding the outer periphery 4 of a separated case A to the outer periphery 5 of a separated case B. Both a bonding rib 6 for bonding the separated case B thereto by means of adhesives and a temporal fixing rib 7 for bonding are formed in the separated case A.