baber/WOPTO huggingface dataset:
Patent JP-H09288418-A (JP)
Title: Developing device
Inventor: TANAKA HIDEAKI
IPC: G03G15/08
Filed: 1997-02-19
Abstract: PROBLEM TO BE SOLVED: To prevent developer from being deteriorated by efficiently executing the recovery of the developer and the supply of the new developer without mechanically peeling the developer on a developing roll as to a developing device visualizing a latent image on an image carrier by using the two- component developer including toner and carrier. SOLUTION: A belt-like member 15 having plural projection parts 18 on the circumferential surface thereof is arranged at a position faced to the developing roller 12. The belt-like member 15 is circulated so as to carry the developer. Then, the developer is dropped down from the upper part of the roller 12 along the circumferential surface. On the other hand, the roller 12 is constituted so that S poles and N poles are alternately placed by magnetization at short intervals along the circumferential surface and a small quantity of developer can be attracted. The developer on the roller 12 is peeled by the collision of the flowing-down developer and the flowing-down developer is replaced with it. Besides, it is good that the developer is recovered and supplied by bringing a magnetic brush stirred and carried by varied magnetic field into contact with the developer on the roller 12.
Patent JP-H04285727-A (JP)
Title: Magnetic disk device
Inventor: GOMI KENICHI
IPC: G11B5/72
Filed: 1991-03-15
Abstract: PURPOSE:To provide the magnetic disk device constituted to maintain the float ing stability of a magnetic head over a long period of time by decreasing the friction force and attraction force of the magnetic head of a high-performance magnetic recording device which is small in the floating quantity of the mag netic head and is high in the rotating speed of a magnetic recording medium. CONSTITUTION:The magnetic recording medium 11 of the magnetic recording device including the magnetic recording medium 11 and the magnetic head 12 is formed by laminating a magnetic layer 4 and a protective layer 5 on a nonmagnetic base body. The protective layer 5 and the slider material of the magnetic head 12 are selected from the combinations of materials having 0.05 to 0.6 coefft. of static friction between the two materials. The protective layer 5 is selected from the materials which have >=50 deg. contact angle with water after being coated with a fluorine liquid lubricant. The magnetic recording medium 11 for which such protective layer 5 is used.
Patent JP-S54142451-A (JP)
Title: Magnetic clutch
Inventor: SAKAKI MASAKATSU
IPC: F16D27/112
Filed: 1978-04-28
Abstract: PURPOSE: To lighten this magnetic clutch, and to reduce cost, by producing a pulley portion in an aluminum alloy while integrally fastening the pulley portion to a rotor portion, to which end surface a friction surface is formed.  
     CONSTITUTION: A clutch pulley 8 manufactured by integrally forming a rotor portion 8a, to which inside a U-shaped section portion 9 is formed, and a pulley portion 8b, which shapes belt grooves 10 for stretching V-belts on an outer circumference of the rotor portion 8a, by means of aluminum die casting is supported onto an outside race 7a of a ball bearing 7 in a revolution-free shape. An exciting coil 11 is internally wrapped in a viod of the U-shaped section portion 9 of the rotor portion 8a while one end of a fixed plate 12 fixed to an end surface is fastened to a main body of a device 2 to be driven, and a core 14 is disposed in a concentric circle shape with other rotary parts. Since such a clutch rotor 8 is supported onto the outside race 7a of the ball bearing 7, the clutch rotor can be lightened without reducing the sectional area of a portion that forms a magnetic circuit. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H11248927-A (JP)
Title: Filter manufacturing device and ink weight measuring method of filter manufacturing device
Inventor: YAMADA YOSHIAKI
IPC: G02F1/1335
Filed: 1998-03-03
Abstract: PROBLEM TO BE SOLVED: To provide the filter manufacturing device and the ink weight measuring method of the filter manufacturing device which can manufacture a filter of good quality by measuring the weight of ink jetted out of an ink jet head and always managing the amount of ink from the ink jet head before or after ink drops are jetted out to the filter. SOLUTION: This device is equipped with the ink jet head 20 having a driving element which is driven with an applied voltage to jet ink drops out to a substrate 48, a weight measuring means 18 which measures the weight of the ink drops jetted out of the ink jet head 20, and a control means 2000 which varies the voltage applied to the driving element of the ink jet head 20 according to the weight of the ink drops measured by the weight measuring means 18.
Patent JP-S60195528-A (JP)
Title: Waveguide type optical switch
Inventor: OKAYAMA HIDEAKI
IPC: G02F1/313
Filed: 1984-03-19
Abstract: PURPOSE:To execute easily switching operation of light by providing a TE polarization control waveguide and a TM polarization control waveguide between an input branch path and an output branch path, and executing said operation through the TE polarization controlling electrode and the TM polarization controlling electrode. CONSTITUTION:The light which is made incident on an input waveguide 1 is divided into a ''0''-order mode light 15 and a primary mode light 18 by an input branch part 3. This phase difference is varied together with a propagation of light, and in case a phase difference of the ''0''-order mode light 15 and the primary mode light 18 is the same in phase or different in phase by pi in an output branch part 6, the light is emitted selectively to output waveguides 4, 5, respectively. In this case, a phase constant difference of the ''0''-order mode light 15 and the primary mode light 18 can be controlled by applying a voltage to TE polarization controlling electrodes 9, 10 and TM polarization controlling electrodes 11, 12 and 13, and varying a refractive index of a TE polarization control waveguide 7 and a TM polarization control waveguide 8 by an electro-optical effect.
Patent JP-H02230658-A (JP)
Title: Electrolyte pouring equipment of storage battery
Inventor: MIYAGAWA SHIRO
IPC: H01M2/36
Filed: 1989-03-02
Abstract: PURPOSE:To always keep the volume of an electrolyte in an adequate level by removing a vent plug which seals an electrolyte pouring port of a storage battery, and mounting electrolyte pouring equipment having an electrolyte passage and a float thereto. CONSTITUTION:When electrolyte pouring equipment 1 is mounted to a storage battery 2, a vent plug is removed from each electrolyte pouring port 6 of the battery 2, and a container 13 which temporarily stores an electrolyte is placed on a cover 4 on which electrolyte pouring ports 6 are installed, then each fitting hole 15 is fitted to each corresponding electrolyte pouring port 6. An electrolyte pouring plug 25 is inserted into the fitting hole 15. An electrolyte passage 27 whose under end is communicated with the space of the container 13 and lower end is communicated with the space in the storage battery 2 is installed in the electrolyte pouring plug 25, and a cylindrical float guide 31 is mounted along the center axis, and a float 33 is mounted to the float guide 31. The electrolyte is poured into each cell having different liquid level by adjusting the float 33.
Patent JP-S63218711-A (JP)
Title: Production of vinyl chloride polymer
Inventor: AMANO TADASHI
IPC: C08F14/00
Filed: 1987-03-06
Abstract: PURPOSE:To obtain a high-quality polymer having excellent storage stability, thermal stability and plasticizer-absorbability, by adding a liquid dispersion composed of an antioxidant, a dispersing agent and water to a polymerization system in the suspension polymerization of a vinyl monomer. CONSTITUTION:Vinyl chloride or vinyl monomers containing vinyl chloride are polymerized by suspension polymerization in an aqueous medium. The polymerization is carried out by mixing the polymerization system with a liquid dispersion composed of an antioxidant {preferably having a melting point of 30-100 deg.C, e.g. triethylene glycol bis[3-(3-t-butyl-5-methyl-4-hydroxyphenyl) propionate}, a dispersing agent (preferably a water-soluble polyvinyl alcohol having a saponification degree of 60-98% and a polymerization degree of 600-3,000) and water. The amount of the liquid dispersion is usually 0.001-1.0wt.% based on the monomer.
Patent JP-H02231714-A (JP)
Title: Manufacture of semiconductor device
Inventor: KAJIWARA SHINJI
IPC: H01L21/3205
Filed: 1989-03-03
Abstract: PURPOSE:To improve the electrical reliability by selectively embedding and forming a thin metal film comprising tungsten, molybdenum and the like or its silicide film in a connecting hole by a chemical vapor growth method, and selectively forming a tungsten thin film by a chemical vapor growth method. CONSTITUTION:A connecting hole 10 is opened in an insulating film 9 covering a semiconductor substrate 1. A thin film 11 of metal comprising at least one or more of tungsten, molybdenum and titanium or its silicide film is selectively formed in the connecting hole 10 by a chemical vapor growth method. Then, a W thin film 12 is formed on the thin metal film 11 or its silicide film selectively by a chemical growth method. Therefore, the surface state of a ground on which the W film 12 is deposited becomes constant. Thus the difference in delay time in deposition of W is prevented. Since W is in contact with the metal or the silicide, the adhesive strength is sufficient. In this way, the electrode wiring characterized by low contact resistance and excellent reliability is obtained.
Patent JP-S61210321-A (JP)
Title: Optical element
Inventor: TAKIZAWA KUNIHARU
IPC: G02F1/05
Filed: 1985-03-15
Abstract: PURPOSE:To obtain a high extinction ratio by disposing plural pieces of flat plate electrodes in positions asymmetrical with an optical waveguide. CONSTITUTION:The flat plate electrodes 3A, 3B are disposed to face each other with the optical waveguide 2 disposed to a substrate 1 in-between. The optical waveguide 2 is disposed in proximity to one (3A) of the flat plate electrode. The refractive index of the crystal as the substrate 1 changes owing to an electrooptic effect, piezo-electric effect and photoelastic effect when an electric field is applied to the crystal. The light is not confined into the waveguide and is radiated into the substrate under the electrode in proximity to the optical waveguide. When the effective refractive index of the substrate under the electrode and the refractive index of the optical waveguide are made equal. The difference in the impressed electric fields between the waveguide 2 and the inside of the substrate 1 under the electrode is larger with the element in which the width of the electrode 3A in proximity to the waveguide 2 is narrower than the width of the other electrode 3B than in other cases and therefore the highest extinction ratio is obtd.
Patent JP-H06264145-A (JP)
Title: Production of grain oriented silicon steel sheet excellent in magnetic property
Inventor: IWAMOTO KATSUO
IPC: C21D8/12
Filed: 1993-03-12
Abstract: PURPOSE:To improve iron loss characteristics without deteriorating magnetic flux density by subjecting a hot rolled plate of a grain oriented silicon steel, containing specific amounts of C, Si, Mn, S, Al, and N to annealing, then to specific aging treatment in the course of cold rolling, followed by grinding. CONSTITUTION:A grain oriented silicon steel stock having a composition containing, by weight, 0.020-0.080% C, 2.5-4.0% Si, 0.01-0.20% Mn, 0.005-0.05% S, 0.01-0.065% Al, and 0.002-0.015% N is hot-rolled and subjected to hot rolled plate annealing. Subsequently, the hot rolled plate is cold-rolled once or twice while process-annealed between the cold rolling stages. The resulting cold rolled sheet is subjected to decarburizing annealing and then to finish annealing after the application of a separation agent at annealing. At this time, in the course of the above cold rolling, before the final pass at the time of final cold rolling, aging treatment is applied to the steel sheet at 100-400 deg.C for 1-30min and then the surface is removed by means of grinding by 0.5 to 20mum in total of both sides.
Patent JP-H05258339-A (JP)
Title: Optical pickup
IPC: G11B7/135
Filed: 1992-03-11
Abstract: PURPOSE:To prevent the degradation in a characteristic and to provide stable performance even when a product is used in any attitude by canceling astigmatism occuring when an objective lens is moved in a direction perpendicular to an information track in an optical pickup. CONSTITUTION:In the optical pickup where the NA<=0.09 of the light source side of the objective lens 4, a semiconductor laser 1 and the objective lens 4 are arranged so that the longitudinal direction of the front focus of the a stigmatism of the objective lens image point side of the semiconductor laser 1 and the objective lens 4 become a perpendicular direction to a disk information track respectively. By the optical pickup, the astigmatism occuring in accordance with the movement of the lens is canceled when the objective lens is moved in the direction perpendicular to the information track.
Patent JP-S60196641-A (JP)
Title: Gas leakage detector of accumulator
Inventor: HOSAKA HIDEO
IPC: F01D25/00
Filed: 1984-03-21
Abstract: PURPOSE:To check the gas leakage with an accumulator being connected to a hydraulic system, by measuring the interval between the end wall of a tightly closed chamber and a piston by an ultrasonic wave sensor, performing temperature correction, computing the gas pressure, and comparing the result with the signal of a pressure sensor. CONSTITUTION:In a main body 2 of an accumulator 1, an upper tightly closed chamber 7 and a lower comminucating chamber 13 are formed by a piston 5. Ultrasonic waves are transmitted to the piston 5 by an ultrasonic wave sensor 5. The reflected waves are received and amplified by an amplifier 28. The time signal from a time command circuit 34 is converted into a pressure signal by a time to voltage converter 31. Meanwhile, temperature correction of the signal from a temperature sensor 23 is performed by a temperature correction converter 32, and the result is inputted to a comparator 36. On the other hand, the signal from a pressure sensor 18 is also inputted to the comparator 36. When the gas leakage is detected, the output signal is outputted to an alarm 37.
Patent JP-H10230239-A (JP)
Title: Slag recovering device of waste and slagging method
Inventor: NAITO TAKEYUKI
IPC: B09B3/00
Filed: 1997-02-21
Abstract: PROBLEM TO BE SOLVED: To provide a slag recovering device for waste and slagging method which are easy to handle and are capable of maintaining the reducing atmosphere of a fluidized bed and directly yielding slag recoverable as useful resources. SOLUTION: This slag recovering device for waste consists of a fluidized bed gasifying furnace 1 which gasifies the waste 11 at a low temp. and a melting furnace which further burns the gaseous materials and char discharged from this fluidized bed gasifying furnace at a high temp. and slags the incombustibles or nongasified matter. The device has the melting furnaces in two stages in series so that the molten slag generated in the melting furnace 5 of the fore stage is cooled to solidify by bringing the slag into contact with the fluid medium of the fluidized bed gasifying furnace 1. The device has a curing device 7 having a heating mechanism which is communicated with the melting furnace 6 of the post stage and executes the heating and heat insulating of the molten slag generated by this melting furnace and a separating mechanism for separating the slag and the metal.  This curing device is an external heating type melting furnace 6. The fluidized bed gasifying furnace is a swivel type fluidized bed gasifying furnace and the melting furnaces are preferably selfcombustion type swivel melting furnaces.
Patent JP-H08246025-A (JP)
Title: Simple ladle refining device using plasma arc
Inventor: INOUE KOUYA
IPC: C21C7/00
Filed: 1995-03-13
Abstract: PURPOSE: To prevent the oxidizing loss of valuable elements and molten iron itself in molten steel, to restrain the development of inclusion in the steel caused by heating due to oxidation and to shorten the treating time. CONSTITUTION: An inert gas blowing lance 9 is inserted to be immersed deeply in the molten steel 10 in a ladle 1, and a gas blowing hole 2 is provided at the tip part of the lance, or a gas blowing hole is provided directly at the bottom part of the ladle 1. Further, an immersion tube 6 is inserted to be immersed in the molten steel 10 a little, and an alloy supplying tube 16 connected to an alloy adding vessel 5 set above the ladle is connected to the immersion tube 6 and plasma torches 8 are inserted into the immersion tube 6. Since the plasma arc is utilized to heat the molten steel in stead of reaction heat of oxidizing reaction agent, the oxide due to heating the molten steel is not produced and the deterioration of the quality of the molten steel can be prevented. Then, since the molten steel surface can directly be heated, the efficient heating is obtd.  Further, since ferro-alloy can be added during the plasma treatment, shortening of the treating time and reduction of the production cost can be achieved.
Patent JP-H03255745-A (JP)
Title: Loop-shaped signal communication system
Inventor: TAKAHASHI YOICHI
IPC: H04L12/42
Filed: 1990-03-06
Abstract: PURPOSE:To detect an interrupted spot by transferring only the address signal of a terminal equipment on the most upstream side closest to the interrupted spot on a normal transmission line in a fixed cycle and identifying this address signal on the transmission line. CONSTITUTION:When interruption abnormality is discovered, each terminal equipment T starts the transmission of the address signal of a present station to the terminal equipments on the downstream side in the fixed cycle. When the address signal is received from the upstream side, the address signal on the upstream side is transferred to the downstream side by a decision circuit 105 and a signal switching circuit 103. After the lapse of fixed time, only the address signal of the terminal equipment on the most upstream side adjacent to the interrupted spot is transmitted on a transmission line Q in the fixed cycle. Therefore, by providing an abnormal spot detection circuit 104, the interrupted spot can be known based on the address signal.
Patent JP-S59181959-A (JP)
Title: Chopper circuit
Inventor: MORITA MASAYUKI
IPC: H02M3/10
Filed: 1983-03-30
Abstract: PURPOSE:To enable to shorten the rising time of the luminous flux or the like of a lamp by limiting the current reduction for maintaining the power constant in a low voltage range, i.e., large current range, thereby supplying the large current immediately after starting. CONSTITUTION:A clamping circuit which has a diode 11 is connected in parallel with a current detecting resistor 4 of a chopper circuit. In other words, the resistor 4 is clamped by the prescribed voltage value, thereby preventing the peak value of the detected voltage from rising so as not to shorten the ON time of a main transistor 5. Thus, the current value in a low voltage range increases, and the heating of the lamp 3 is accelerated. Since the transistor 5 might damage at a load shortcircuiting time, a current detector 14 made of a current transformer 13 is provided, the output current is dropped by the current detection output to protect the overcurrent.
Patent JP-H03258328-A (JP)
Title: Method for selectively exciting isotope
Inventor: TANAZAWA TAKESHI
IPC: B01D59/34
Filed: 1990-03-06
Abstract: PURPOSE:To selectively excite a specified isotope with good energy efficiency by compressing the excitation spectral line width of the specified isotope and irradiating the isotope with a selective excitation laser beam covering the line width and having the energy capable of saturating the specified isotope atom of collateral transition. CONSTITUTION:A metal vapor is irradiated with a selective excitation laser beam to selectively excite the specified isotope atom. In this case, when the specified isotope has a hyperfine structure having plural light absorption spectral lines of main transition and at least one of the lines is separated from the remaining grouped light adsorption spectral line band, the excitation spectral line width of collateral transition in the band or its vicinity is utilized to compress the excitation spectral line width of the specified isotope, and the isotope is irradiated with a selective excitation laser beam having the energy capable of saturating the specified isotope atom of collateral transition to selectively excite the specified isotope atom.
Patent JP-H06267401-A (JP)
Title: Impregnating type negative electrode body structure and manufacture thereof
Inventor: MATSUMOTO SADAO
IPC: H01J1/14
Filed: 1993-03-15
Abstract: PURPOSE:To provide an impregnating type negative electrode body structure that can improve life characteristic, and the manufacturing method thereof by eliminating insufficient absolute amount of impregnation, uneven dispersion of scandium, and reduction in the amount of coating. CONSTITUTION:A porous negative electrode base 20 having a low vacancy upper layer part 22 and a high vacancy lower layer part 22B is provided, and the upper layer part is impregnated with an electron radiating substance containing scandium oxide. The lower layer part is impregnated with an electron radiating substance containing almost no scandium oxide, while an iridium layer 23 or an iridium alloy layer is formed on the surface of the upper layer part.
Patent JP-H04288296-A (JP)
Title: Manufacture of adhesive sheet for label and re-releasable adhesive postcard
Inventor: WAKATA KAZUYOSHI
IPC: B42D15/04
Filed: 1991-03-18
Abstract: PURPOSE:To obtain a well re-releasable postcard generating no protrusion of a label by forming a slit partially having uncut parts to an adhesive sheet wherein a pressure- or heat-sensitive adhesive layer is provided to a support in a label shape. CONSTITUTION:Solid printing and shading printing are partially applied to the adhesive layer of a pressure-sensitive adhesive sheet using general-purpose typographic ink as adhesion suppressing ink and, after substrate printing is applied to the surface of base paper, perforations 2, marginals 3 and half cuts 4 are formed to the base paper to take up a continuous sheet 1 for a label. After substrate printing is applied to the surface and rear of coated paper of 130g/m for a postcard, perforations 2 and marginals 3 are formed to the coated paper and individual data such as an address, a name or data are further entered in the coated paper by an electrophotographic type line printer to obtain a continuous sheet for a postcard. The continuous sheet 1 for the label is superposed on the continuous sheet for the postcard to be introduced into a pressure sealing apparatus to preparatorily bond both sheets and the parts other than the labels are removed from the bonded sheet and this sheet is cut along the perforations 2 and the marginals 3 and pressed to obtain a re-releasable postcard.
Patent JP-S53138554-A (JP)
Title: High frequency heating device
Inventor: WATANABE ICHIROU
IPC: H05B6/74
Filed: 1977-05-09
Abstract: PURPOSE: High frequency heating device in which a rotatable agitating vane for agitating the electric wave and a radiation antenna are arranged in the closely adjacent relation in the space for storing the heated object and a uniform heating may be performed for the heated object by the cooperative action of them. 
     COPYRIGHT: (C)1978,JPO&Japio