baber/WOPTO huggingface dataset:
Patent JP-H0647481-A (JP)
Title: Production of resin coated sand grain for shell mold
Inventor: SUZUKI NORIAKI
IPC: B22C5/04
Filed: 1992-06-30
Abstract: PURPOSE:To produce the resin coated sand grains for shell mold which can form a shell mold for casting having the strength and surface hardness equiv. to the strength and surface hardness in the case of fresh sand from reconditioned sand. CONSTITUTION:This process for production consists in mixing a resin binder which is solid at ordinary temp. with the reconditioned sand subjected to heating and melting the resin binder to coat the surface of the reconditioned sand with the resin binder. An additive which is solid at ordinary temp. and turns to a liquid state earlier than the resin binder when heated by the reconditioned sand is added together with the resin binder to the reconditioned sand at the time of mixing the resin binder and the reconditioned sand. This additive infiltrates the clay, etc., earlier and blocks the infiltration of the resin binder and, therefore, the resin binder is efficiently used for coating of the sand grains.
Patent JP-H05311969-A (JP)
Title: Crushing method of ground by front end of round pipe by projection to inside and outside of pipe wall
Inventor: NISHIGUCHI MASAMICHI
IPC: E21B7/20
Filed: 1992-05-01
Abstract: PURPOSE:To slacken sufficiently the ground widely from a pipe wall and to make it possible to insert and fix a round pipe thereinto without environmental pollution by distributing and inclining pipe ends split along the axis to the inside and the outside of the pipe wall alternately, and forming serrated crushing teeth. CONSTITUTION:All or part of pipe ends split along the axis or part remaining unnotched are twisted to project one end of each of them and the other end respectively to the outside and the inside, and they are distributed and inclined alternately to the inside and the outside of a pipe wall to form serrated crushing teeth. It is desirable that the crushing teeth are formed in imitation of specifications of various kinds of serrated teeth. In addition, the crushing teeth can be projected forward from the pipe ends and inside and outside of the pipe wall. Or, the crushing teeth are arranged on a blocking plate on the front end of a round pipe in the shape of a spiral, and plate-like projections projecting the tail sections to the outside of the pipe can be provided. The ground can be sawed by the projections with the rotation of the pipe, and the pipe is driven forward smoothly in the ground in order to slacken sufficiently the ground widely from the pipe wall. In the case the pipe stands still, it is sufficiently fixed to the ground widely.
Patent JP-H01152326-A (JP)
Title: Fluorescence reader
Inventor: ISHIDA KAZUYUKI
IPC: G01J1/58
Filed: 1987-07-10
Abstract: PURPOSE:To improve the S/N, by separating a fluorescent substance exciting position with a light guide for excitation light from a fluorescence receiving position with a light guide for introducing fluorescence to eliminate reflected light on a background and interference of excitation light. CONSTITUTION:Light 1 excites a fluorescent substance 10 through a light guide 2. Here, fluorescence 8 from the fluorescent substance 10 and reflected light 11 on a background occur simultaneously and under such a condition, the fluorescent substance 10 is moved to below a direction light guide 3. As the light guide 2 is separated from the light guide 3, there is no effect from the excitation light 7 and the reflected light 11 to let the fluorescence 8 alone be incident within an angle 9 of incidence of the light guide 3. The fluorescence 8 is introduced to a detector 4 through the light guide 3, where it is converted into an electrical signal to be taken out as signal output. This eliminates reflected light on the background and interference of excitation light thereby improving the S/N.
Patent JP-S6332843-A (JP)
Title: Cathode-ray tube
Inventor: TOJO TOSHIO
IPC: H01J29/89
Filed: 1986-07-25
Abstract: PURPOSE:To facilitate the adjustment of a transmission factor of a surface plate freely, by forming electrodes of two inner/outer transparent conductive films and applying several volts of d-c voltage across electrochromic (EC) thin films to conduct the EC film. CONSTITUTION:A clear panel having a high transmission factor is used as a surface plate 2 of a cathode-ray tube, and this surface is covered with multilayer thin films comprising inner/outer transparent conductive films 5 and 6, between which EC material layers 1 are interposed. With the transparent conductive films 5 and 6 serving as electrodes, voltage is applied across the interposed EC material thin films 1. The EC films 1 are colored in accord with the amount of conducted electricity, and their transmission factors decrease. These colored EC films 1 can be decolored when they are conducted by reversing polarities of the d-c voltage. The transmission factor of the surface plate 2 of the cathode-ray tube can be freely adjusted in accord with user's liking, so that observation can be made with brightness and contrast of the screen being under the best condition for the user.
Patent JP-S5875427-A (JP)
Inventor: NAGASAWA HIROSHI
IPC: H02J3/36
Filed: 1981-10-27
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-H0518266-A (JP)
Title: Quick response improving device for gas turbine
Inventor: MARUYAMA HITOTSUGU
IPC: F02C9/28
Filed: 1991-07-15
Abstract: PURPOSE:To improve quick response of speed and turbine output by calculating a variable inlet guide vane angle according to a total sum of a reference value based on the speed target value of a variable inlet guide vane and respective correction amounts based on a speed control deviation and the control deviation of the number of revolutions of a turbine, respectively. CONSTITUTION:In the control system of a gas turbine, a variable inlet guide vane is located to the inlet part of a compressor. In this case, a quick response improving device calculates a reference value alphas of a guide vane by means of a function device 54 based on a speed target value Vr. Based on the control deviation DV of a speed, a first correction amount alphaA of the guide vane is calculated by means of a function device 56. Further, based on a control deviation DN of the number of revolutions of a turbine, a second correction amount alphaB of the guide vane is calculated by means of the function device 58. Meanwhile, a total sum S of the reference value alphas and the first and second correction values alphaA and alphaB is calculated by means of an adder 60. Based on the calculated total sum S, an angle (an angle in the direction of the flow of inflow air to the vane train of a compressor) alpha of a guide vane is calculated by means of a maximum value selector 64.
Patent JP-H0516809-A (JP)
Title: Train operation management system
Inventor: SOFUE YUKIO
IPC: B61L25/02
Filed: 1991-07-16
Abstract: PURPOSE:To provide smooth train operation. CONSTITUTION:There are provided speed controllers 13, 23, train condition detectors 14, 24, and train condition memory devices 15, 25 on a train, a central controller which carries out a group control for plural trains on the ground, and transmitting device which always can transmit information on train condition and command information on train operation at stations, platforms, and between stations between the devices on a train and the central controller. It, is thus possible to obtain train operation which follows optimumly for condition changes such as delay in advance trains and so forth. Besides, it is possible to prevent the train from waiting for the advance train for safety because the train comes too near to the advance train.
Patent JP-H0725348-A (JP)
Title: Front wheel steering angle control device for vehicle
Inventor: MORI HIROSHI
IPC: B62D101/00
Filed: 1993-07-14
Abstract: PURPOSE:To prevent focusing property from being degraded or diverged even if steering angle control making relative interference small between lateral motion and yaw motion is performed by detecting the physical quantity of lateral motion, and thereby determining the steering angle of each front wheel by means of feedback control using a negative control factor in response to the aforesaid physical quantity. CONSTITUTION:Signals from a steering angle sensor 15, a vehicle speed sensor 16, a lateral sliding speed sensor 17 and a stroke sensor 18 are inputted to a controller 14. The controller 14 operates a front wheel auxiliary steering angle deltaF and a rear wheel steering angle deltar based on the aforesaid inputted information, and controls solenoids 7L, 7R, 8L and 8R so as to stroke actuators 5 and 6 in such a way that the aforesaid operated steering angle can thereby be obtained. The front wheel steering angle deltaf is expressed by the sum of a front wheel main steering angle theta/H by a steering gear 4, the auxiliary steering angle deltaF, and Qf. (d/dt)y by way of a feedback factor Qf. In this place, the feedback factor Qf is a negative value negating a vehicle inherent influence function which decides to generate a yaw rate.
Patent JP-H10190097-A (JP)
Title: Laser device
Inventor: UEDA KENICHI
IPC: H01S3/094
Filed: 1997-06-30
Abstract: PROBLEM TO BE SOLVED: To provide a laser device capable of converting an exciting light to a laser oscillating light with high efficiency. SOLUTION: One continuous long laser fiber 2a is rolled up a large number of times, shaping up a cylinder-shaped lump and hardened with ultraviolet curable resin and both ends of the fiber are exposed as a take-out opening, thereby providing a laser oscillating light from both ends by the irradiation of the excitation light from the surrounding areas. In addition to that, since the laser fiber 2a is provided with a cladding around a core 5a, 0.5at% Nd<3> is doped inside the core 5a.
Patent JP-2000010025-A (JP)
Title: Telescopic optical device
Inventor: KATO MASATO
IPC: G02B25/00
Filed: 1998-06-22
Abstract: PROBLEM TO BE SOLVED: To provide a telescopic optical device which does not cause the divergence of focus in the case of performing zoom operation after focusing. SOLUTION: Zoom binoculars equipped with an objective lens system 1, and an ocular system 2 having 1st, 2nd and 3rd lens groups 31, 32 and 33 and performing variable power by moving the 1st and the 2nd lens groups 31 and 32 are constituted by setting relation between the 1st and the 2nd lens groups 31 and 32 so that the front side focal position 2a' of the ocular system 2 may be constant at the time of variable power, when the 3rd lens group 33 is arranged at a prescribed position. Diopter is adjusted by moving the 3rd lens group 33 by a screw part 36a in a state where the position 2a' is aligned with the image forming position 1a of an observed object at infinity by the objective lens system 1 by means of a projection part 12a and a click spring 15.
Patent JP-H0777833-A (JP)
Title: Production of toner
Inventor: KASUYA TAKASHIGE
IPC: G03G9/087
Filed: 1993-06-23
Abstract: PURPOSE:To produce a toner excellent in granulation stability while preventing sticking to a polymn. vessel by adding a specified metallic compd. of salicylic acid to specified polyalkylene wax and a dye or pigment, melting and kneading them and using the resulting master batch. CONSTITUTION:A metallic compd. of salicylic acid is added to a starting material mixture of polyalkylene wax having 50-100 deg.C m.p. with a dye or pigment by 0.5-10 pts.wt. and they are melted and kneaded to produce a master batch used for producing a toner. A chromium or zinc compd. is used as the metallic compd. of salicylic acid. When the amt. of the added compd. is <0.5 pt.wt., the dispersibility of the dye or pigment and the electrostatic chargeability of a produced toner deteriorate. In the case of >10 pts.wt., the environmental stability of electrostatic charge of the toner deteriorates. Polyalkylene wax having <50 deg.C m.p. deteriorates the blocking resistance of the toner and polyalkylene wax having >100 deg.C m.p. deteriorates low temp. stability. Paraffin or polyolefin wax is used as the polyalkylene wax having 50-100 deg.C m.p.
Patent JP-S6151516-A (JP)
Title: Signal processing circuit of magnetic detection type rotational angle detection sensor
Inventor: FUJIMOTO MASAHIKO
IPC: G01D5/244
Filed: 1984-08-22
Abstract: PURPOSE:To widen the width of a selection of an attenuation time constant and to improve noise resistance performance by delaying the start of attenuation of a threshold voltage to the zero-cross point of a sensor output. CONSTITUTION:The signal A of the magnetic detection type rotational angle detection and threshold voltage VTH are waveform-shaped by a comparator CMP and the peak value of the signal A is held by a peak holding circuit PH, whose output is used by a buffer amplifier AMP2 as the threshold voltage VTH. Then, a control circuit CTL is composed of an inverter INV, transistor Tr2, and its base resistance R, and the Tr2 is brought under the on-off control of the inverter INV which inverts the output D of the comparator CMP to delay the discharge start point of the circuit PH to the zero-cross point of the signal A. Consequently, the tolerance of malfunction against a sensor oscillation noise is increased.
Patent JP-H0340770-A (JP)
Title: Fan
Inventor: YAMAGUCHI MASAKI
IPC: H02N2/00
Filed: 1989-07-06
Abstract: PURPOSE:To make the winding of a fan unnecessary and reduce the size as well as the weight of the fan by a method wherein the fan is provided with an annular supporting member, provided around the outer periphery of the fan to support the fan and rotated integrally with the fan, and an ultrasonic motor, welded to the supporting member by pressure and rotating the supporting member. CONSTITUTION:Ultrasonic oscillators 11 are embedded into the case 36 of the main body of a fan 31 and are welded by pressure to a circular ring 34 through retaining members 35 while blades 33 are supported from the circular ring 34 toward the central part of the fan and a hub 32 is fixed by supporting rods at the central part of the fan. The ultrasonic oscillators 11 form driving units 37a, 37b at both end units where the maximum oscillation can be obtained. According to this method, the winding of the fan may be made unnecessary and the size as well as the weight of the fan may be reduced.
Patent JP-H02124832-A (JP)
Title: Interferon-beta composition
Inventor: YAMAZAKI SHIYOUJIROU
IPC: A61K47/16
Filed: 1989-07-05
Abstract: PURPOSE:To obtain the title composition containing an alkaline earth metal salt or lanthanide and albumin, having sufficient stability even in the presence of a substance which may become deactivation factor and suitable for endermism and suppository, etc. CONSTITUTION:The aimed composition containing (A) A1: alkaline earth metal salt, preferably chloride thereof, lactic acid salt thereof or A2: lanthanide salt, preferably chloride thereof, (B) albumin, preferably human serum albumin and (C) interferon-beta(IFN-beta), and further as necessary (B) absorption promoter, e.g., surfactant, salicylic acid salt derivative, enamin derivative, N-acetylated collagen derivative. As the concentration of each ingredient in the composition, the ingredient C is 10<3>-10<8>IU/ml, the ingredient A1 is 0.01-5.0mol, especially 0.1-2.0mol, A2 is 0.000005-0.01mol, especially 0.00001-0.0005mol, the ingredient B is 0.01-200mg, especially 0.3-10mg per 1.0X10<6> of the ingredient C and the ingredient D is 0.1-80% mass concentration.
Patent JP-H0516487-A (JP)
Title: Printer
Inventor: TATEYAMA HIROMI
IPC: B41J21/16
Filed: 1991-07-16
Abstract: PURPOSE:To prevent inconveniences impairing printing data by recognizing an image taken in through an image read means to judge whether black point parts exist or not, by detecting a line position where the black point parts exist, and by conducting print while avoiding this line position. CONSTITUTION:An image read means 1 takes in an image on a medium surface to be printed by a printer and a recognition means 2 recognizes the taken-in image to judge whether black points such as characters, graphic and rule marks exist or not. When the black points are recognized by this recognition means 2, the position of the line direction of the black points(carrier direction of a medium) is detected and contained in a storage means 4. Then, the line direction position of the black points contained in the storage means 4 and the existing print line position are checked in a printing means 5. When the black points exist in a print line, a new line is started and the existing print position and the line direction position of the black points contained in the storage means 4 are checked again. When there is confirmed a line in which no black point exists, printing is conducted in that line.
Patent JP-H0227682-A (JP)
Title: Spark plug for internal combustion engine
Inventor: NAGATA SHINJI
IPC: H01T13/38
Filed: 1988-07-15
Abstract: PURPOSE:To improve airtightness and durability by constituting an insulator with a long leg section made of heat conducting ceramic and the other portion made of alumina or the like and locating its connection section between the dia-section of a main body metal and the packing contact face. CONSTITUTION:A long leg section 7 constituting an insulator 2 is made of A.N and the other portion of the insulator 2 is made of alumina or the like, the long leg section 7 and the other portion are connected by a connecting material 8 made of glass such as high-melting point glass or ceramic with high insulation and the softening point of 600 deg.C or above. Or at the connection section 9 between the long leg section 7 and the other portion, the long leg section 7 is used as an inner cylinder 14, the other portion is used as an outer cylinder 15 made of a material with the linear expansion coefficient larger than that of the inner cylinder 14, they are coupled and connected. The position of the connection section g between the long leg section 7 and the other portion is located between the dia-section 4 of a main body metal 3 and the packing contact face. The connection portion 9 is more firmly connected and can sufficiently cope with the stress from the lateral direction.
Patent JP-2000005857-A (JP)
Title: Press casting machine
Inventor: SUZUKI SHINICHI
IPC: B22D17/32
Filed: 1998-06-22
Abstract: PROBLEM TO BE SOLVED: To eliminate dispersion of a press pin protruding velocity due to temperature variation of a hydraulic operation fluid. SOLUTION: An opening degree of a flow volume adjusting valve 8 is corrected by a computer 12 corresponding to a detection signal of an instantaneous temperature sensor 11 mounted to an oil path B when the valve 8 is controlled by PID control of the movement of a press pin 4. Thereby, since the opening degree of the flow volume valve is adjusted corresponding to temperature variation of the hydraulic operation fluid, dispersion of the press pin movement can be prevented.
Patent JP-2001001139-A (JP)
Title: Gas cutting device and method for cast metal
Inventor: HORIGUCHI HIDEO
IPC: B23K7/00
Filed: 1999-06-22
Abstract: PROBLEM TO BE SOLVED: To obtain a gas cutting device of low equipment price, having high efficiency for cutting, and being able to cut plural cast metals. SOLUTION: This is a gas cutting device, for cast metals, with which a cast metal, being cut in on-line after continuous casting, is cut again to the size required for rolling process in off-line. the device consists of a teaching camera 10 which recognizes four corner positions of the cast metal, an arithmetic processor 14 for cutting position which plans for taking products from cutting direction from a higher rank computer and information on the four corner positions of the recognized cast metal, and automatically determines the cutting conditions consisting of setting a running route of a cutting torch, setting its speed, timing of ignition of cutting gas and of fire extinguishing and selection of the cutting gas pressure, etc., gas cutting machine 8 which performs numerical control cutting of the cast metal,  driving control device 15 which controls the gas cutting machine 8 and an end face detector 11 which detects the approach of the cutting torch 6 of the cutting machine to a planned end face for incision of gas cutting to the cast metal.
Patent JP-H1180060-A (JP)
Title: Production of tetrakisphenol
Inventor: SATO TAKEHIRO
IPC: H01L23/29
Filed: 1998-06-22
Abstract: PROBLEM TO BE SOLVED: To obtain a tetrakisphenol, which is useful, for example, as a polymolecular clathrate compound, without generating environmental pollutants as by-products, at high yield, and allowing easy control of the reaction, by reacting an alcoholic solution containing a phenol and a dialdehyde with sulfuric acid in a specific range of temperature. SOLUTION: A compound shown by the formula [X is a group shown by the formula: (CH2 )n ((n) is 0-3] or phenyl; R<1> and R<2> are each H or to lower alkyl, a (substituted) phenyl, a halogen, a lower alkoxy] is obtained by adding (B) sulfuric acid to (A) a lower alcoholic solution containing a phenol (A1 ) and a dialdehyde (or 21 derivative thereof) (A2 ) [e.g. a lower alcoholic solution comprising A1 (mol), A2 (mol), and; alcohol (ml) at an A1 /A2 ratio of 2.5-4.0 mol/mol and an alcohol/A2 ratio of 750-1250 ml/mol at 0-15 deg.C to condense. Preferably, the condensation is performed by adding component B at a B/A2 ratio of 75-1250 ml/mol.
Patent JP-H0339460-A (JP)
Title: Steel parts excellent in bending fatigue strength and its production
Inventor: MURAI NOBUHIRO
IPC: C23C8/34
Filed: 1989-07-06
Abstract: PURPOSE:To improve bending fatigue strength by allowing B to penetrate into the surface of a steel and regulating B concentration in a carburized and hardened layer to the prescribed value before applying carburizing and hardening to steel parts composed of a steel in which C content is specified. CONSTITUTION:Before applying carburizing and hardening to parts made of steel consisting of carbon steel or alloy steel containing 0.1-0.5wt.% C, B is allowed to penetrate into the surface of the steel. Subsequently, the above steel is subjected to carburizing, hardening, and tempering treatments to undergo carburizing and hardening, by which B concentration in a carburized and hardened layer is regulated to <=0.01%. By this method, grain boundaries in the carburized layer can be strengthened and bending fatigue strength can be improved.
Patent JP-S6236758-A (JP)
Title: Photomagnetic recording medium
Inventor: TANAKA MOTOHARU
IPC: G11B11/105
Filed: 1985-08-09
Abstract: PURPOSE:To increase the coercive force HCrt. angle in a perpendicular direction and to improve photomagnetic recording characteristics by increasing the Tb compsn. in a magnetic film near the boundary with a substrate. CONSTITUTION:A magnetic film 13 and a protective film 15 are laminated on the substrate 11. The amorphous magnetic film 13 is constituted of a Tb- transition metal (TM) layer 13a and a Tb-rich layer 13b richer with Tb than said layer. The thickness of the film 13 is adequately about 0.03-0.5mum and the Tb-rich layer occupies near the boundary with the substrate, more preferably within 100Angstrom  from the substrate surface out of said layer. Other rare earths may be added, in addition to Tb-Fe, Tb-Fe-Co, Tb-Fe-Cu, Tb-Fe-Ni and Tb-Fe- Cr to the magnetic film. Such metals are exemplified by Gd-Tb-Fe, Tb-Dy-Fe and Gd-Tb-Fe-Co. The protective film 15 is provided to prevent the amorphous magnetic material from being oxidized and corroded by oxygen and water and consists of SiO2, SiO, Si3N4 and AlN.