baber/WOPTO huggingface dataset:
Patent JP-S5638404-A (JP)
Title: Manufacture of atomized iron powder
Inventor: FUJIKAWA TAKAFUMI
IPC: B22F9/08
Filed: 1979-09-05
Abstract: PURPOSE: To keep the temperature of molten steel at a specific value as well as to prevent the blocking of nozzle by blowing an inert gas into a tundish through a porous nozzle in the manufacture of atmized iron powder by jetting the flow of molten low-C Cr steel by a high-pressure water.  
     CONSTITUTION: A molten steel containing >0.20% Cr and <0.15% C is flowed out of a tundish nozzle and a high-pressure water is jetted to manufacture an atomized iron powder, where a porous nozzle is provided to the turn dish and an inert gas is blown into the turn dish under a gas pressure of 0.1W1kg/cm 2 .G in such an amount that the outgoing flow of molten steel is not disturbed in case where the depth of the molten steel in the turn dish is 400W500mm. At the same time, the temperature of molten steel in the tundish is regulated to 1,600°C or more by a heater. Thereby, the blocking of the nozzle with Cr 2 O 3  can be prevented by the oxidation of Cr due to the lowering of the temperature of molten steel and therefore, high quality steel powder can be stably manufactured. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H02295097-A (JP)
Title: Light emitting device
Inventor: MAYAMA SHINJI
IPC: H05B41/14
Filed: 1989-05-08
Abstract: PURPOSE:In lighting of a high pressure discharge lamp, to surely start it with low power and to lengthen life by providing a power source for applying AC power and high frequency power. CONSTITUTION:A high pressure discharge lamp is a metal halide lamp consisting of rare gas, which becomes divisor atmospheric pressure in lighting, mercury, and a metal halide, and the lightening is maintained by a DC power source 1. For the high pressure discharge lamp 3, a high frequency magnetic field supplied from a high frequency power source 2 is superimposed on the DC power source 1 or applied at the same time with the DC power source 1 at the time of start-up. That is, rare gas and metallic steam charged in the discharge lamp is excited and discharged by the electromagnetic field generated by a high frequency coil, and this develops into the discharge between discharge tube electrodes, and finally becomes arc discharge. Hereby, at the time of start-up of a high discharge tube, the lighting can be started surely with low power, and miniaturization of the circuit, cost reduction, and the life extension of the discharge lamp become possible.
Patent JP-H09300475-A (JP)
Title: Method and apparatus for forming optically molded article
Inventor: AKUTSU EIJI
IPC: B29C35/08
Filed: 1996-05-08
Abstract: PROBLEM TO BE SOLVED: To continuously and automatically prepare a plurality of optically molded articles by a method wherein after a laminated molded article is molded on a molding stage, this molding stage is discharged from a storing tank for an photocurable resin soln. and then, molding successively the laminated molded article on the molding stage is continuously performed on the remaining molding stages. SOLUTION: The top face of a molding stage 4 is positioned on the liq. face of a photocurable resin 2 and after the molding stage 4 is elevated upward, the top face of a molding stage 4a is positioned on the liq. face of a photocurable resin 2. Then, the molding stage 4a is lowered to the bottom in a tank 1 and the molding stage 4 is returned to a starting point Z to complete preparation for molding. Then, the molding stage 4 is lowered by one pitch and the photocurable resin 2 is poured on the molding stage to wait for smoothening of the photocurable resin 2. Then, the photocurable resin 2 on the molding stage 4 is irradiated with a laser light 7 to form a cured layer on the molding stage 4. Thereafter, the similar process and operation are repeated to laminate successively the next cured layer on this cured layer and to form a required optically molded article 9.
Patent JP-H07302477-A (JP)
Title: Magnetic head for hard disk
Inventor: KUDO NORIAKI
IPC: G11B5/60
Filed: 1994-04-30
Abstract: PURPOSE:To form a magnetic head for hard disks which is provided with a very small difference in level for controlling a floating pressure on the air bearing surfaces of the magnetic head and permits easier production at a low cost by forming the parts formed with the very small difference in level of a different material varying from the material of the air bearing surfaces. CONSTITUTION:The magnetic head for the hard disks which is composed of a transducer part 22 and slider parts 21 and is provided with the air bearing surfaces 23 and a groove 24 for regulating the floating pressure in the slider parts 21 and the very small difference in level 25 for controlling the floating pressure on the air bearing surfaces 23. The parts 25 formed with the very small difference in level are formed of the different material which is different from the material of the air bearing surfaces 23.
Patent JP-H04320238-A (JP)
Title: Multi-projection device
Inventor: NAKAJIMA AKIO
IPC: G03B21/625
Filed: 1991-04-19
Abstract: PURPOSE:To reduce information omissions due to seams when plural projection units are combined. CONSTITUTION:A holding piece 3 is fixed to a prop 8 with a support screw 9. Further, a support piece A4 is fixed to a frame 6 through a support piece B5 and the frame 6 is fixed to the prop 7. The holding piece 3 is arranged between sets of lenticular sheets 1 and Fresnel sheets 2, and both the sets are held. The holding piece A4 is arranged at the left or right end of the sets of the lenticular sheets and Fresnel sheets and energized with the elastic force of the support piece B5 toward the holding piece 3 to clamp and support both the sets. Consequently, light 10 from a light source passing the left end part of the Fresnel sheet 2a or the left end part of the Fresnel sheet 2b is not cut off since the holding piece 3 is transparent, so the information omissions due to the seam are reducible.
Patent JP-S62268990-A (JP)
Title: Heat exchanger
Inventor: MIYAMOTO KAZUHIKO
IPC: F24S90/00
Filed: 1986-05-19
Abstract: PURPOSE:To promote heat transfer performance and make the contact area per unit pipe length of pipes larger by winding more than two flat pipes with the same cross-sectional shape and volume and providing on both ends of the spiral support bodies and tightening them with center bolts and providing a plurality of grooves on the inner face of a coolant side pipe and applying pressure to the other hot water supply side pipe to expand it. CONSTITUTION:A heat exchanger 2 is formed by winding a coolant side pipe 23 and hot water supply side pipe 22 spirally, and the coolant side pipe 23 has a coolant flowing through it and the hot water supply side pipe 22 has hot water flowing through it. On the inside face of the copper pipe of the coolant side pipe 23 grooves 0.2mm deep are provided and those pipes are machined flat to have the same cross-sectional shape, and then they are deformed plastically into the shape of a peanut. The pipes in this state are successively wound so as to become spirals of an equal inner diameter. The hot water supply side pipe 22 is expanded by the internal pressure given by a compressed fluid to eliminate air layer generated between both pipes 23 and 22. At both ends of the spiral body support bodies 11 are provided. The spiral shaped heat exchanger is tightened by a center bolt 12 and it is fixed to a structure body 15 with fixing metallic fittings 14.
Patent JP-S61272362-A (JP)
Title: Manufacture of molding tool
Inventor: HANEDA TOSHIO
IPC: C23C8/36
Filed: 1985-05-29
Abstract: PURPOSE:To remarkably improve the durability of a molding tool having an uneven surface by exposing the surface of the tool to gas plasma so that nitrogen, oxygen or carbon penetrates into the tool from the surface and forms a diffusion layer. CONSTITUTION:A molding tool 6 having an uneven surface to be transferred to a molded body is fitted to a substrate holder 7, and an exhaust system 9 is driven to evacuate a vacuum vessel 8. Gaseous ammonia is introduced into the vessel 8 through a vent valve 10 capable of varying flow rate under a prescribed pressure, and electric potential is applied to a high frequency exciting coil 12 with a high frequency power source 11-2 to excite and ionize the gaseous ammonia present in an electric field generated by the coil 12. The resulting nitrogen and hydrogen ions collide with the surface of the molding tool 6 and penetrate into the tool 6. A nitride layer is formed by the nitrogen ions.
Patent JP-H09279931-A (JP)
Title: Travel device for sliding door
Inventor: KURIKI KAZUO
IPC: E05D15/06
Filed: 1996-04-11
Abstract: PROBLEM TO BE SOLVED: To provide a travel device with no rattling of a door wheel due to rolling, to be hardly departed from a rail and stable in travelling. SOLUTION: This travel device has a rail 3 provided with a recessed groove 3a extended over a floor 2 in the longitudinal direction and a door wheel 1 provided with a wheel 5 mounted at the lower edge 7 of a sliding door 6 to rotate and travel on the rail 3. A protruded line 14 to be inserted in the recessed groove 3a is peripherally provided at the center of the outer periphery of the wheel 5 and a descending ground plane 13 is formed outside along both sides of the protruded line 14.
Patent JP-S5824827-A (JP)
Title: Method for measuring stress distribution
Inventor: NAKAYAMA YOUJI
IPC: G01L1/00
Filed: 1981-07-21
Abstract: PURPOSE:To measure the stress distribution without contact by alternately applying compressing and tensile loads to a body to be measured, and performing raster scanning on an image spot of an infrared ray detector at the timing of the maximum load. CONSTITUTION:The body to be measured 1 is fixed to chucks 2 and 2' of a load testing machine, and the compressing and tensile loads are alternately applied to it. The infrared rays irradiated from the body to be measured 1 are detected by the infrared ray detector 3. The signal from an optical scanner 4 which scans the image spot of the detector 3 is sent to a CRT display 6. The signal is converted into the digital signal by an A/D converter 7 and stored in data memories 12 and 13. A computer 19 samples the detected signal values corresponding to the position which is separated by a specified distance from the initial point of each raster for every raster at the timing of the maximum compressing and tensile loads, obtains a data, and prepares the stress distribution image based on the data.
Patent JP-H11291568-A (JP)
Title: Image processing method and system, and memory medium
Inventor: HIROUCHI YASUO
IPC: G11C7/00
Filed: 1998-04-10
Abstract: PROBLEM TO BE SOLVED: To enable overlay printing even in a system having no overlay memory by synchronizing the reading operation at an image reading section with the timing for printing each page of a document and outputting a print data and a read-out data while synthesizing onto a transfer means. SOLUTION: At a moment of time when the controller of a printer finds a form feed code or reads out a data up to the end of a page, an image reading section 402 can read out the document image of next page overlay at an appropriate time. Printing of a document data is printed by passing a data through a laser irradiating section 403. On the other hand, a data read out from the image reading section 402 is synchronized with laser irradiation of the document data and ORed or XORed at the laser irradiating section 403. Consequently, a document and a read-out data can be synthesized even it a particular image memory is not provided.
Patent JP-S607146-A (JP)
Title: Manufacture of semiconductor device
Inventor: HIGUCHI TAKAYOSHI
IPC: H01L21/76
Filed: 1983-06-25
Abstract: PURPOSE:To eliminate the film wear of the first Si nitride film on the part scheduled for an element region by a method wherein a non single crystal Si film doped with an impurity is converted into the third insulation film, the ends of which are then projected above the etching region. CONSTITUTION:The first insulation film 12, first oxidation resistant film 13, and non single crystal Si film 14 doped with the impurity are formed on a semiconductor substrate 11, which are then partly etched in selective manner. Further, the second insulation film 17 is formed over the surface of the etching region of the substrate 11 after the substrate 11 is etched in a tapered form, and the film 14 is converted into the third insulation film 18, the ends of which are then projected above the etching region. Next, the films 17 and 18 and the like are removed by the deposition and the anisotropic etching of the second oxidation resistant film 19, and thereafter a field oxide film 20 is formed by thermal oxidation. Therefore, the film wear of the film 13 can be prevented by the presence of the film 18, resulting in the maintenance of a suitable film thickness.
Patent JP-2000302452-A (JP)
Title: Recovery of rhodium
Inventor: SUZUKI NAOKI
IPC: B01J38/60
Filed: 1999-04-22
Abstract: PROBLEM TO BE SOLVED: To extract rhodium from an oil phase into a water phase and efficiently recover rhodium by adding a specific amount of aldehyde to an oil phase containing phosphite and rhodium, mixing the resultant oil phase with a water phase containing a carboxylic acid and phosphoric acid, treating the mixed solution with an oxidizing agent and separating the water phase from the oil phase. SOLUTION: An aldehyde in an amount of about >=1 wt.%, preferably >=2 wt.% is added to an oil phase containing phosphite and about 0.1 ppm to 10 wt.% rhodium, e.g. waste solution of oxo reaction using rhodium as catalyst metal. The resultant oil phase is mixed with a water phase containing a carboxylic acid and phosphoric acid and/or phosphorous acid. A 2-4C mono or dicarboxylic acid, e.g. acetic acid is preferable as the carboxylic acid in the water phase and the concentration is preferably about <=5-50 wt.%. The concentration of the phosphoric acid is preferably about <=0.05 M. The volume ratio of the oil phase to the water phase is preferably 0.1-10.  Then, the mixed solution is sufficiently subjected to oxidation treatment with an oxygen-containing gas such as an excessive amount of oxygen, air, etc., and the water phase is separated from the oil phase and the water phase in which rhodium is extracted is recovered.
Patent JP-H08303085-A (JP)
Title: Horseshoe lock
Inventor: TATEMATSU SEIICHI
IPC: E05B71/02
Filed: 1995-05-12
Abstract: PURPOSE: To provide a horseshoe lock having a bolt hardly operated erroneously and capable of being easily locked with one hand. CONSTITUTION: This horseshoe lock 1 is provided with a hollow case 3 curved into a circular arc shape, a bolt 5 made of a rod-like body curved into a circular arc chape and slidable to the locking position where it bridges both ends of the case 3 or the unlocking position where it is stored in the case 3 without bridging the case 3, a lever 9 protruded on the bolt 5 and protruded to the outside of the case 3 via a slit 7 formed on the case 3 to allow the sliding action of the bolt 5, and a locking mechanism 11 fixing the bolt 5 at the locking position to make it unslidable. A moving section provided on the lever 9 and a coupling section formed on the case 3 are coupled at the unlocking position, and the lever 9 is fixed to the case 3. When the lever 9 is gripped to release the coupling with the case 3 and slid as it is, the lock 1 can be locked.
Patent JP-H06330922-A (JP)
Title: Insulated fixation part of high tension apparatus
Inventor: ARAI MOTOYUKI
IPC: H02G15/06
Filed: 1993-05-17
Abstract: PURPOSE:To provide a fixation part which exerts a stable insulation characteristic for a long period of time, when a high tension apparatus is fixed to a bearing wall, and which is easy to assemble. CONSTITUTION:A fixation part concerned is previously provided with an insulative covering 23 in a part from the head 21 till a through hole 11A provided in an insulative plate 11. The insulative covering 23 is made from epoxy resin, etc., which has good durability. To secure an insulation distance, the covering 23 is terminated in the inside of the through hole in the insulative plate 11. This allows easily ensuring the insulation between a bearing wall 5 as a conductive supporting body and a metal fixture 4 as a conductive detention part of apparatus concerned.
Patent JP-2000306720-A (JP)
Title: Magnet roll and manufacture thereof
Inventor: SHIMAZU KIKUO
IPC: H01F7/02
Filed: 1999-04-22
Abstract: PROBLEM TO BE SOLVED: To provide a magnet roll, which curves small and has uniform magnetic flux density, even if the difference in radius between a magnetic pole and an inter-pole is large and obtains satisfactory picture quality free of density unevenness, and its manufacture. SOLUTION: The magnet roll M is equipped with a nearly columnar magnet roll main body 1 which is formed of a resin magnet composition, including thermoplastic or thermosetting resin, ferromagnetic powder, and additives and has multiple magnetic poles in the circumferential direction over the entire length larger than the length of 200 mm and shafts 2 and 3 which support the magnet roll main body 1 at both the ends. The maximum value of the difference in radii between the magnetic poles and inter-poles of this main body 1 is 0.01 mm or larger and the bend, of the main body 1 is 0.1 mm or smaller.
Patent JP-H06324139-A (JP)
Title: Sound source position estimating device
Inventor: SATO SHINICHI
IPC: G01S5/28
Filed: 1993-05-17
Abstract: PURPOSE:To lighten the estimated error of the sound source position based on the sound speed variation in a sound propagation passage. CONSTITUTION:The sound which is intentionally generated at a well-known position is received a plurality of sensors 1-1-1-3, and the sound source position is calculated from the arrival time of the received signal by a sound source position calculating part 2, and the error between the calculated sound source position and the well-known position is obtained and accommodated by a correction quantity calculation part 4 and a correction quantity data base 5, and the sound source position which is calculated from the arrival time of the received signal which is received by a plurality of sensors 1-1-1-3 is corrected on the basis of the contents of the correction quantity data base 5. Since the sound source position is obtained by reflecting the error between the measured sound speed and the average sound speed in a sound propagation passage, the estimated error of the sound source position can be reduced.
Patent JP-S5740257-A (JP)
Title: Photoreceptor for copying
Inventor: ANDOU ITSUROU
IPC: G03G5/043
Filed: 1980-08-22
Abstract: PURPOSE:To reduce size and weight of an apparatus and to obtain an image having good contrast, by forming a spectrally sensitized layer on the surface of a durable photoconductive layer of a photoreceptor prepared by laminating a transparent conductive layer, an insulating layer, and said durable photoconductive layer. CONSTITUTION:A durable photoconductive layer 3 not spectrally sensitized and prepared by dispersing photosensitive finely divided particles, such as ZnO or TiO2 into a binder, such as a butadiene-styrene copolymer or polyvinyl acetate, and another durable photoconductive layer 4 spectrally sensitized by adding malachite green, ''Eosin Y  '', ''Rose Bengal  '', or other dyes to the durable photoconductive mateial are laminated on a light-transmitting substrate consisting of a light-transmitting conductive layer 1 and an insulating layer 2. As a result, a good contrast image can be obtained by the difference in the light quantity to be absorbed in the bulk of the photoreceptor in carrying out contact reflection exposure.
Patent JP-H02294245-A (JP)
Title: Motor with brake
Inventor: MATSUDA KOICHI
IPC: H02K7/102
Filed: 1989-05-08
Abstract: PURPOSE:To increase braking torque by forming a movable core and the opposed surface of a magnetic pole core in the shape of a taper in the direction of a stator core side, exciting the stator core, and absorbing the movable core against a damping spring to release brake. CONSTITUTION:A movable core 12 and the opposed surface of a magnetic pole core 19 are formed in the shape of a taper in the direction of a stator core 16 side. When a stator winding 24 is so energized that a motor excites the stator core 16, the movable core 12 is absorbed against spring force of a damping spring 14 by electromagnetic absorption force taking therewith to separate a rotary damping place 18 form a fixed section 15, and a brake is released. The peripheral end constitutes a part of magnetic path at a proper interval with the circumference of the stator core 16 and the tapered surface of the magnetic pole core 19. According to the constitution, when exciting the stator core 16, axial strong electromagnetic force acts on the movable core 12, and spring force of the damping spring 14 can be enhanced to increase damping torque.
Patent JP-H07318569-A (JP)
Title: Scanning probe microscope
Inventor: KONDO SEIICHI
IPC: G01B7/00
Filed: 1994-05-27
Abstract: PURPOSE:To obtain a scanning probe microscope in which a high quality observation image can be recognized efficiently even if an experimenter is not viewing a monitor by producing a sound having frequency corresponding to that of the periodic structure on the surface of a sample when the observation image is presented on a monitor. CONSTITUTION:An STM probe 2 is controlled 5 in the z-direction so that a constant tunnel current flows between a sample 1 and the probe 2 and scanning thereof is also controlled 5 in x and y directions. Data obtained from the surface of the sample through the probe 2 is processed through a computer 6 and displayed 7 as an image. At the same time, a sound having frequency (audible frequency of 20Hz-20kHz) corresponding to the amplitude of the periodic structure on the surface of the sample is delivered from a speaker 8 wherein the magnitude of the sound corresponds to the strength of z piezoelectric signal or tunnel current signal produced depending on the irregularities on the surface of the sample. Since the frequency and strength of sound corresponds to the spectrum of observed image, the atomic image being observed can be recognized base on the sound signal without viewing the monitor.
Patent JP-H05312738-A (JP)
Title: Analyzer
Inventor: KATO HARUO
IPC: G01N23/223
Filed: 1992-05-08
Abstract: PURPOSE:To measure the content of a thin film, etc., easily and with a high accuracy by a method wherein a weight measuring means which measures the total weight of a sample is unified with the main part of a measurement apparatus which is composed of an exciting means which generates an X-ray, etc., and applies it to the sample and a detecting means which detects an X-ray, etc., emitted from the sample at that time. CONSTITUTION:An X-ray tube 3 which is placed in a sample chamber 2 and applies an X-ray to a sample 10, an electronic balance 5 which is placed in a sample chamber 2 and measures the total weight of the sample 10 and a detecting means which is placed in a sample measurement chamber 1 and detects the intensity of a fluorescent X-ray emitted from the thin film material surface of the sample are unified to constitute an analyzer.
Patent JP-S63279382-A (JP)
Title: Display controller
Inventor: SHIGA MINORU
IPC: G09G5/39
Filed: 1987-05-12
Abstract: PURPOSE:To prevent a data generation circuit from being increased even if the number of plain memories increases by generating data which are to be written in plural plain memories from the data generation circuit in time division and writing data which have been generated in time division into the prescribed plain memories in corresponding time. CONSTITUTION:A memory control circuit 9 outputs data which are to be written in the plain memories 1a-1d from the data operation circuit in time division. Said circuit 8 simultaneously outputs address signals designating the plain memories 1a-1d. Data are written in the plain memories 1a-1d in accordance with a value which has been set in a positive plain register 6. Thus, a display controller which operates by one data generation circuit can be obtained irrespective of the number of the plain memories.