baber/WOPTO huggingface dataset:
Patent JP-S60241775-A (JP)
Title: Dc/dc converter circuit
Inventor: HIRATA SHINJI
IPC: H05B41/26
Filed: 1984-05-15
Abstract: PURPOSE:To enhance energy conversion efficiency by automatically switching the turn ratio of a converter transformer by considering the state of a load during the voltage rising operation. CONSTITUTION:A DC/DC converter 1 has a converter transformer having a DC low voltage power source 2, a power source switch 3, primary and secondary windings 4a, 4b and an auxiliary winding 4c, and a voltage booster 8 having an oscillation transistor 5, a starting resistor 6, and an auxiliary capacitor 7, and further a state detecting means 12 for detecting the state of the load and control means 13 for controlling the operation of a LSCR 11 of a switching element. The means 13 controls the operation of the LSCR 11 by the output of the means 12 to switch the turn ratio of the converter transformer.
Patent JP-S62254976-A (JP)
Title: Powder plasma building-up method for guide bar
Inventor: SHIMIZU TAKAO
IPC: B27B17/02
Filed: 1986-04-28
Abstract: PURPOSE:To decrease the dilution rate of a building-up material and to permit satisfactory automatic two-layer building-up by rotating a guide bar after the center of the arc of a build-up part passes the enter of a torch by a prescribed distance, building-up the 1st layer and moving the 2nd layer exactly oppositely from the 1st layer. CONSTITUTION:The center 2 of the welding torch is fixed and the guide bar 1 is linearly moved until the center 5 of the arc in the build-up part thereof passes the center 2 by the prescribed distance a1, then the building-up of the 1st straight part 6 is executed. The bar 1 is moved in the Z direction to execute the building-up of the 2nd layer 8 after the bar 1 is rotated to execute welding 7 of the arced part. The bar 1 is moved exactly oppositely and the building-up of the 2nd layer is executed upon ending of the welding of the 1st layer. Always flat welding is thus executed and the satisfactory and stable building-up is permitted by shifting the distance a1. Since the welding is executed by two- layered building-up, the dilution rate of the 2nd layer is decreased to about 1% and the characteristics intrinsic to the building-up material are obtd.
Patent JP-S5431601-A (JP)
Title: Vibration-proof device for pipe
Inventor: YAMAMOTO YASUAKI
IPC: F04B49/10
Filed: 1977-08-15
Abstract: PURPOSE: To widen the range of absorbed frequency and facilitate design, by making a phase difference between a fluid flowing in an outer cylinder and a fluid flowing in an inner cylinder and by absorbing vibration by the elasticity of the cylinders. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H09285954-A (JP)
Title: Method for cutting plate-like workpiece
Inventor: TAKAHASHI AKIO
IPC: B24B27/06
Filed: 1996-04-18
Abstract: PROBLEM TO BE SOLVED: To prevent the occurrence of stains and soils on a workpiece surface caused by ground chips produced during workpiece grinding. SOLUTION: For cutting a plate-like workpiece 4, grinding is performed by pressing the peripheral end part of a grinding wheel 12 to the surface of the workpiece 4 while the grinding wheel 12 of a cutter 8 is rotary-driven. For this grinding, water is injected from the water injection nozzle 16 of the cutter 8 and ground chips in a grinding part are eliminated, a water spraying nozzle 18 is provided in the periphery of the workpiece 4, water is sprayed from this water spraying nozzle 18 to the surface of the workpiece 4 and thereby the entire surface of the workpiece 4 is covered with a fluid film 20 containing clean water. Thus, dirty water containing ground chips is surely discharged from the surface of the workpiece 4, and when the surface of the workpiece is dry, clean water is evaporated and thereby the occurrence of stains or soils is prevented.
Patent JP-H11291349-A (JP)
Title: Welding device for plastic molded product molded from thermoplastic resin and welding method using the device
Inventor: MORITA TSUTOMU
IPC: B29C65/02
Filed: 1998-04-09
Abstract: PROBLEM TO BE SOLVED: To obtain a welding device to shorten a welding time and to improve weld strength and the designability of a weld shape and a welding method using the device. SOLUTION: In a welding method and a welding device. The welding base 61 of a thermoplastic resin molded product is made to penetrate a fixing hole 71 formed in an object 70 to be fixed, a protruded variable part is melted to form an expanded part 64 so that the object 70 is welded to the molded product.  A hollow guide hole 62a with its ceiling opened in the axial direction is formed in advance in the central part of the welding boss 61, a projection part 12 formed at the center of the contact surface of a heating element 10 is inserted into the guide hole 62a, while the welding boss 61 is being surrounded with a peripheral wall 13 installed to enclose the surroundings at a prescribed distance from the projection part 12, the heating element 10 is made to emit heat, the welding boss 61 is heat-melted, a space part 14 is filled with a resin, are is ejected from a pipe into the heating element 10 for cooling, the expanded part 64 is solidified, and the object 70 is fixed to a plastic plate 60.
Patent JP-S59221526-A (JP)
Title: Heating unit
Inventor: UEDA SHIGEKI
IPC: H05B6/68
Filed: 1983-05-31
Abstract: PURPOSE:To make it possible to perform automatic cooking which is not affected by influences of a seasoning and a reducing gas and stable for high temperature operations and repeated operations by providing a humidity sensor or a gas sensor and two temperature sensors in the titled heating unit and selectively using respective sensors by a temperature difference between the suction and exhaustion. CONSTITUTION:A material 13 to be heated is placed in a heating chamber 12, and is heated by a magnetron 14 and an electric heater 15. The magnetron 14 is controlled of the power supply by a control part 11 through a driver 16. A blower 17 cools the magnetron 14 and carries out ventilation within the heating chamber 12. First sensor means 19 for detecting gas or steam and third sensor means 21 for detecting the temperature are provided in an exhaustion guide 18. Second sensor means 20 for detecting the temperature of suction air is disposed in the vicinity of a suction port 22. These sensor means transmit the progressing state of the heating to the control part 11 through a detection circuit 23. The control part 11 appropriately combines respective sensor means based on these sensor information pieces thereby to carry out automatic cooking.
Patent JP-S59222370-A (JP)
Title: High-speed printer
Inventor: OGAWA HIROSHI
IPC: B41J11/42
Filed: 1983-05-31
Abstract: PURPOSE:To contrive to enhance accuracy in detecting an abnormal condition of a paper, by a method wherein a sensor for directly detecting the movement of a paper is provided on both the paper-supplying side and the paper-discharging side, and the quantity of the paper supplied and the quantity of the paper discharged are directly monitored. CONSTITUTION:An output from the sensor 21 for detecting the movement of the paper on the paper-supplying side is differentiated by a differentiating circuit 22, and is inputted as a signal 26 into a clock gate of a shift register 25 for detecting an abnormal condition. On the other hand, an output from the sensor 23 for detecting the movement of the paper on the paper-discharging side is differentiated by a differentiating circuit 24, and is inputted as a signal 27 into a clear gate of a shift register 5. When the movement of the paper is normal, the shift register 25 shifts ''1'' of input data 32 to 28, 29, 30 in response to a differentiation signal 26, but since it is cleared by a differentiation signal 27, ''1'' is not shifted to a paper abnormality signal 31. In the case of an abnormal condition, a shift register clearing timing of the signal 27 is delayed, or the signal is absent, so that the shift register 25 is shifted to the paper abnormality signal 31, whereby the abnormal condition of the paper is detected. The number of shifting steps is empirically determined from the relationship of movement delay time between the supply and the discharge of the paper.
Patent JP-2000292972-A (JP)
Title: Electrostatic charge image developing magnetic toner
Inventor: KANBARA HIROKAZU
IPC: G03G9/083
Filed: 1999-04-05
Abstract: PROBLEM TO BE SOLVED: To provide an electrostatic charge image developing magnetic toner capable of stably forming images even in the case environments of a high temperature and humidity and a low temperature and humidity without lowering the image density and causing a fog and reducing the occurrence of sleeve memory. SOLUTION: This toner contains a mother toner containing a binder resin and a magnetic powder, and fine inorganic grains treated with a silicone compound shown by the formula together with a silane coupling agent and having a BET specific area of 20-100 m2/g measured by the nitrogen adsorption method and a fine silica powder having a BET specific area of 100-250 m2/g measured by the nitrogen adsorption method. In the formula, each of R1-R5 is a 1-3C alkoxy group, and (n) is integer of 2-6.
Patent JP-H10287251-A (JP)
Title: Steering wheel angle correcting device for industrial vehicle and industrial vehicle
Inventor: ISHIKAWA KAZUO
IPC: B62D6/00
Filed: 1997-04-15
Abstract: PROBLEM TO BE SOLVED: To operate a steering wheel without a feeling of physical disorder at high speed running time, and avoid stopping of correction of a steering wheel angle. SOLUTION: An actual position of a steering wheel and a steering angle of a steering wheel are detected respectively by a rotary encoder and a potentiometer. In a CPU, a target position in accordance with a steering angle of a steering wheel is calculated. When a deviation amount Δθ between the actual position of the steering wheel and the target position exceeds a permissible amount, a duty valve is driven, change ratio of a drive amount of a steering cylinder relating to an operating amount of the steering wheel is decreased, the steering wheel is raced, till setting the deviation amount Δθ to within at least a permissible range, the steering wheel is position corrected. Corresponding to a car speed v detected in a car speed detection means, a duty value of the duty valve is set.  Corresponding to an increase of the car speed, so as to decrease a correction amount per unit time, the duty valve is controlled.
Patent JP-S61256805-A (JP)
Title: Mixing circuit
Inventor: KOGURE TAKUYO
IPC: H03D7/18
Filed: 1985-05-08
Abstract: PURPOSE:To improve the converting efficiency by short-circuiting a main line at a point from a connecting point between a diode and the main line by a 1/2 wavelength of an intermediate frequency signal and forming the vicinity of the short-circuit part as a part of a high frequency signal passing filter. CONSTITUTION:A high frequency signal RF is fed to a mixer diode 36 through an input terminal 31, a filter 32 and the main line 35, and a local oscillation signal OS is fed to the mixer diode 36 through an input terminal 33, a filter 34 and the main line 35. Moreover, the filters 32, 34 act both like a short-circuit impedance to an intermediate frequency signal, a terminal 36A of the mixer diode 36 apart by a half of the wavelength lambdaIF of the intermediate frequency signal shows a short-circuit impedance, the intermediate frequency signal is not sent to the main line 35 but reflected fully and extracted efficiently at an intermediate frequency signal filter 38.
Patent JP-S63263535-A (JP)
Title: Data processing system
Inventor: KURAKAZU KEIICHI
IPC: G06F9/34
Filed: 1987-04-22
Abstract: PURPOSE:To eliminate need of addition of new instruction for access to special registers in case of the increase of the number of special registers by providing an operation code designating field including common information and a position designating field. CONSTITUTION:The instruction which accesses a special register is set to the format where an operation code designating field OP, which is given in accordance with contents of the instruction and designates the same operation code independently of the classification of the register, and a register designating field CR indicating information concerning the special register such as the register number assigned to the special register and the register size are provided independently of each other. Thus, a desired special register is accessed by not changing the operation code but only changing the register number or the like, and addition of new operation codes for access to special registers is unnecessary in case of the increase of the number of special registers.
Patent JP-S61253305-A (JP)
Title: Sintering method for metallic powder having hardly reducible film
Inventor: FUJITA MASAHITO
IPC: C22C33/02
Filed: 1986-04-25
Abstract: PURPOSE:To obtain a porous sintered body having desired voides by molding hardly reducible metallic powder under no pressure and sintering the molding in the state in which a liquid layer is partly formed. CONSTITUTION:>= 1 kind of the metallic powder of Mg, Ti, Si, Mn, Zn, stainless steel, etc. having the hardly reducible film is molded in the substantially pressure-less state. Such molding is maintained for the specified time at the temp. near the m.p. of the metallic powder and is sintered in the state in which the liquid phase is partly formed. The molding is maintained in a non-oxidizing atmosphere such as, for example, H2 atmosphere or vacuum atmosphere during sintering. The molding is sintered by controlling the dew point to <=-20 deg.C. The powder can be sintered while the skeleton is maintained without melting the same down to the central part by the above-mentioned method. The rate of melting is decreaded. The liquid phase part projects to the outside by break ing through the hardly reducible film on the surface and this liquid phase part is bound and sintered. The porous sintered body having about >=30% voids is thus obtd.
Patent JP-H10286817-A (JP)
Title: Manufacture of cement plate with pattern
Inventor: MIZUNO MOTOYUKI
IPC: B28B11/10
Filed: 1997-04-15
Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a cement plate with a pattern by which it is possible to form a cement plate with a pattern having a fine texture without lowering productivity. SOLUTION: A cement slurry 1 is prepared by dispersing cement, a silica component and a reinforcing fiber into water and a cement base plate 2 is formed by making the slurry 1 into a sheet. After adjusting the content of moisture of the cement base plate 2 to 40-70%, the cement base plate 2 is pressed so that pattern with a largest depth equivalent to 30-50% of the plate thickness is formed. In this method for manufacturing a cement plate with a pattern, a combination of pulp fiber and asbestos fiber are used as the reinforcing fiber. The water filtering properties of the cement slurry 1 can be enhanced. A flocculating is no longer used for increasing the yield, so that it is possible to prevent the loss of smoothness in the flow of the cement slurry 1 and the qualitative deterioration of the texture from occurring.
Patent JP-S63265551-A (JP)
Title: Manufacture of squirrel-cage rotor
Inventor: KANZAKI HIDETOSHI
IPC: H02K17/16
Filed: 1987-04-22
Abstract: PURPOSE:To improve a quality and lengthen the span of life, by pressing molten metal into the spaces of the slot of a core block, the conductor rod casting slot of a ventilating duct forming piece, and the like, fluctuating the pressure at a high speed. CONSTITUTION:The steel sheets 1 of core material are provided with central shaft slots 2 and peripheral slots 3. The steel sheets 1 in a desired sheet quantity are laminated to form core blocks 4, and ventilating duct forming pieces 5 are placed between, and the blocks 4 in a desired quantity are heaped up. The ventilating duct forming pieces 5 are provided with shaft conducting slots 6 on the central section and conductor rod casting slots 7 on the peripheral section. On metal molds 9, 10, a short circuit ring forming space 11 and a blade forming space 12 are respectively formed, and are connected to a retaining furnace 13 having a pipe 14 for pressing-in molten metal. Through the retaining furnace 13, the molten metal 16 of aluminum is injected into the spaces 11-12 and the like. In this case, a valve 17 is switched at a high speed, and compressed air from a pressure machine 18 is intermittently fed, and pressure for pressing-in the molten metal is fluctuated at a high speed. As a result, the casting defect of slit or the like can be prevented from being generated.
Patent JP-S63265072-A (JP)
Inventor: WATABE ATSUSHI
IPC: E04G21/12
Filed: 1987-04-22
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H0649762-A (JP)
Title: Composite nonwoven fabric
Inventor: FUKUI MINORU
IPC: D04H1/492
Filed: 1993-04-23
Abstract: PURPOSE:To obtain a composite nonwoven fabric having excellent water- pressure resistance, air-permeability and strength and high flexibility and suitable as a material for medical and sanitary use, filter, interior material, interlining cloth and wiper material by laminating a short-fiber nonwoven fabric and a long-fiber nonwoven fabric and integrating the nonwoven fabrics by interlocking. CONSTITUTION:A short-fiber nonwoven fabric having an areal density of 10-50g/m<2> and an average fiber orientation degree of 2.0-10 and satisfying the formula 1/9<a/b<=4/3 ((a) is ratio of short fiber of <=0.3de and (b) is ratio of short fiber of >=0.5de) is produced from polyester short fibers of <=0.3 de and rayon short fibers of >=0.5de. The obtained short-fiber nonwoven fabric is laminated to a long-fiber nonwoven fabric produced by partially bonding long fibers with each other. The objective composite nonwoven fabric is produced by applying a columnar flow to the laminate to effect the interlocking and integration of both nonwoven fabrics by the intrusion of <=20 short fibers constituting the short-fiber nonwoven fabric into >=1/2 of the thickness of the long-fiber nonwoven fabric based on a length of 500mum.
Patent JP-S5723501-A (JP)
Title: Device for measuring accuracy in stopping moving body
Inventor: YAMASHIRO YUKIO
IPC: B65G1/00
Filed: 1980-07-18
Abstract: PURPOSE: To improve accuracy in stopping the carrier of a stacker crane by providing the striker before a position in which the carrier is stopped and using the output from a detector which detects the striker and pulses of a rolling roller of the carrier for displaying the result of computation by means of a computer.  
     CONSTITUTION: As a stacker crane 1 travels, a roller 7 rolls on a rail 2 so that a rotary encoder 11 transmits pulse outputs to a microcomputer 17. On the other hand, a striker 4 installed ahead of the position where the stacker crane 1 is stopped is detected by two photoelectric detectors 5 the signals of which are applied to the input of the microcomputer 17. The computer 17 computes the travelling distance of the stacker crane to display the calculative results on a photoelectric indicator 19 and printer 20. When these displayed values are larger or smaller than a set value, the position where said striker 4 is mounted is adjusted so that the position in which the stacker crane 17 is stopped can be determined with high precision without any danger to measures. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S5622297-A (JP)
Title: Control system for memory unit
Inventor: IKEHARA SHIYOUHEI
IPC: G06F12/12
Filed: 1979-07-31
Abstract: PURPOSE: To enable to correct the data without error in normal operating state, by rewriting the block having error in the buffer storage with priority.  
     CONSTITUTION: If there is any error in the data readout from the block 3, for example, of the buffer storage 2, the error correcting code check circuit 4 delivers the error signal representing the presence of error to the rewriting order control section 7-1. The least recently used unit 7 makes control so that the rewriting to this block B 3  is made with the highest priority, if the data block picked up from the main memory unit 5 is present next. Accordingly, when the data block picked up from the unit 5 is transferred, new data is given to the data block where this error is present. Thus, rewriting to the data without error can be made with comparatively short time. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S5525542-A (JP)
Title: Intake apparatus of multicylinder internal combustion engine
Inventor: SEKIYA SETSUO
IPC: F02M35/10
Filed: 1978-08-10
Abstract: PURPOSE: To increase the filling efficiency to each cylinder by opening branched passages and the opening parts which communicate to a common communication passage, on the down stream side of the throttle valve arranged at each intake port part of a multicylinder engine and utilizing the pressure due to blowing-back.  
     CONSTITUTION: A throttle valve 22 is arranged in the vicinity of the intake port 5b of each intake passage 11 equipped with a carburetor 13, and each throttle vavle not shown in the figure is linked with through a common shaft. Under the throttle valve 22, a common communication passage 29 is formed which extends in the longitudinal direction of the engine body, and the communication passage 29 is allowed to communicate to each intak port 5b through a communication branched passage 30b, and the top end of the communication passage 30b" is opened in the tangential direction in the vicinity of an intake valve 3b. An opening part 31b is arranged which opens directly to the intake port 5b from the midway of the communication branched passage 30b. The variation of pressure in a port is transmitted by gushing out the mixed gas into other port through the branched passage and the opening part. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H04326788-A (JP)
Title: Distribution feedback type semiconductor laser
Inventor: DOI MASATO
IPC: H01S5/00
Filed: 1991-04-26
Abstract: PURPOSE:To enable the stable single longitudinal mode oscillation of only the objective wavelength light by providing a light absorbing layer, where the quantum effect changes cyclically in the direction of light wave guide. CONSTITUTION:A first clad layer 2 consisting of AlGaAs or the like, an active layer 4 consisting of GaAs or the like, and a guide layer 5 consisting of AlGaAs or the like are epitaxially grown on a substrate 1 consisting of GaAs or the like. A diffraction gratings 10 at required pitches, which consist of parallel- arranged grooves where the sectional form in the direction of light wave guide is saw-toothed, is made on the guide layer 5 by etching. A light absorbing layer 6 consisting of AlGaAs or the like and the second clad layer 7 consisting of AlGaAs or the like are grown epitaxially in order thereon to have such thickness as to bring about quantum effect, that is, quantum well structure. A diffraction grating 10 is provided in the vicinity of the active layer 4, and hereon a light absorbing layer 6 is provided, which performs light absorption in cycles by quantum effect. Hereby, periodical gain coupling is performed, and single longitudinal mode oscillation becomes possible.
Patent JP-S5323585-A (JP)
Title: Production of semiconductor device
Inventor: TOKUYAMA KENJI
IPC: H01L29/78
Filed: 1976-08-17
Abstract: PURPOSE: To save photoetching process and obtian channel stoppers by providing regions of the same conductivity type and a high concentration the to entire surface of a semiconductor substrate of one conductivity type and etching off the channel forming regions. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S5222180-A (JP)
Title: Method for breaking concrete by combined use of air hammers and waves
Inventor: AKIYAMA MORIO
IPC: B25D13/00
Filed: 1975-08-12
Abstract: PURPOSE: To provide a method for breaking concrete which minimized vibration, noise and the like. 
     COPYRIGHT: (C)1977,JPO&Japio