baber/WOPTO huggingface dataset:
Patent JP-H0621730-A (JP)
Title: Weak power amplifier/transducer driver by means of signal expansion
Inventor: UEIN AARU SUTEIDO
IPC: H03F3/30
Filed: 1993-04-06
Abstract: PURPOSE: To provide the amplifier provided with a low distortion characteristic of a class AB amplifier and a low power consumption automatically of a class B amplifier by configuring the amplifier of a low level gain stage, a 2nd driver stage, a final output stage with a coupling self-bias circuit and a DC bias control and a feedback circuit. CONSTITUTION: A signal expansion characteristic is caused by an interaction between a driver stage 14 and an output stage 16 together with a signal feedback via a bias control circuit 20 and a phase inversion circuit 28. A system 10 includes a feedback compensation circuit 22 provided between an output of the output stage 16 with a coupling self bias circuit 18 and an input of the driver stage 14, a gain control circuit 24 provided between an output of a low level gain stage 12 and its input, and a current source 26 supplying power to the low level gain stage 12 and the driver stage 14. Thus, with respect to a power transducer driver without crossover distortion being a characteristic of weak power design, the amplifier provided with the low distortion characteristic of a class AB amplifier and a low power consumption electrode characteristic of a class B amplifier is obtained.
Patent JP-H05283378-A (JP)
Title: Manufacture of semiconductor device
IPC: H01L21/302
Filed: 1992-03-30
Abstract: PURPOSE:To obtain an etching pattern where the width of wiring and the diameter of a hole are in accord with the dimension at design, in the etching process using a photoresist pattern. CONSTITUTION:When forming a photoresist pattern on a film 2 to be etched, and etching the film 2 to be etched, with the photoresist pattern 3 as a mask, a protective film 5 with a required thickness is stacked on the photoresist pattern 3 and the film 2 to be etched, and this protective film 5 and the film 2 to be etched are etched at the same time. Since the protective film 5 is left on the side of the photoresist pattern 3, the side etching of the film 2 to be etched is suppressed, and the error in etching dimension by side etching is suppressed.
Patent JP-S5730105-A (JP)
Title: Recording and reproducing device for video signal
Inventor: YAMAMOTO AKIHIRO
IPC: G11B15/14
Filed: 1980-07-30
Abstract: PURPOSE:To prevent the occurrence of crosstalk between head by providing different video heads for channels of picture recording and reproducing time modes, and by grounding the terminal of a head for a mode channel other than one at use. CONSTITUTION:When heads 1 and 16 are used, a recorded signal is passed through an amplifier 14, a changeover switch 12 and a shielded wire 11 and recorded by the heads 1 and 2 by way of a mode changeover switch 10 and a rotary truck 3. For reproduction, the switch 12 is turned off and a switch 13 is turned on, applying the outputs of the heads 1 and 16 to a regenerative amplifier 15. In recording and reproduction mode, the outputs of other mode heads 2 and 17 are grounded via a switch 9. When video heads 2 and 17 are used, on the other hand, the outputs of the heads 1 and 16 are grounded via the switch 9.
Patent JP-S59229226-A (JP)
Title: Drawing device of wire rod
Inventor: YOMOKARI SHIGEO
IPC: B21C1/34
Filed: 1983-06-10
Abstract: PURPOSE:To make an installation scale small in size by arranging the wire-rod supporting point of a chucking device located at one end of a frame, the height of a pin of an endless chain engaged with a dolly, and the center hole of a die mounted on the dolly, coaxially in the horizontal direction and in the same level, and making the total length of the frame approximately equal to the length of a wire rod. CONSTITUTION:A die 10 is mounted on a dolly 4A prepared freely movably between a pair of base frames 2A, and the wire-rod supporting point of a chucking device 9 for fixing one end of the wire rod 1 and the center hole of the die 10 are arranged coaxially in the horizontal direction and in the same level. Further, a pair of endless chains 11 are traveled along a pair of base frames 2A in the same level-and-position as those of the center hole of die 10, and a pair of hooks 6A of dolly 4A are engaged with a pin 12 of the chain 11 at each side to travel the die 10 from one end of the frame 2A to the other end. Accordingly, there is no necessity for providing a space for feeding a wire rod to the base frames 2A, and the total length of the frame 2A can be reduced.
Patent JP-S62261778-A (JP)
Title: Valve employing electrostriction element
Inventor: KAWAMURA TAKAHIDE
IPC: F16K31/02
Filed: 1986-05-08
Abstract: PURPOSE:To adhere a valve body to a valve seat stably and reliably with time, by using a press force, produced resulting from curved deformation of an electrostriction element, and the energizing force of a magnetic force applying means. CONSTITUTION:A laminar electrostriction element 8, to both surfaces of the one end of which valve bodies 6 and 7 are locked, is positioned between valve seats 3 and 5. The other end part of the electrostriction element 8 is supported in a cantilever type manner to a body 1. A magnetic force applying means 13, e.g., a permanent magnet, is situated around the valve seat 3 of an inlet flow passage 2, and by exerting a magnetic force on, for example, an iron series metallic sheet 8a, with which the electrostriction element 8 is formed, an energizing force is generated in a direction in which the valve body 6 is forced to approach the valve seat 3.
Patent JP-H02282629-A (JP)
Title: Air conditioner
Inventor: NAGAMITSU SACHIO
IPC: F24F1/00
Filed: 1989-04-24
Abstract: PURPOSE:To reduce the noise and embody the air conditioning based on the application of wall radiation after the temperature of wall is brought near to a specified value with wind by installing two blowers on the both sides of a main body and controlling separately the wind direction from blowoff ports on both sides. CONSTITUTION:A heat exchanger 2 is installed so that it may approach an inner side of a front panel 3 of a device main body 1 and it is provided with a pipe 4 where cooled water, warm water or steam flows. A rear casing 5 is installed on both sides from the center of an outlet port 6 provided on the rear side of the heat exchanger 2 and forms an air passage 8 which leads to a left side blowoff port 7 and an air passage 8 which leads to a right side blowoff port 9. A suction port 10 is installed in a position which allows to face the heat exchanger 2 on the front panel 3. A filter 11 is mounted to the suction port 10. The indoor air from a left fan 12 and a right fan installed to each air passage is dust-removed by the filter 11. The air passes through the suction port 10 and heated to a specified temperature by the heat exchanger 2 and ventilated indoors again from the left blowoff port 7 and the right blowoff port 9 passing through the air passages 8 on both sides. Both right and left wind direction control blade cascades 14 and 15 control the direction of discharged air.
Patent JP-H04311581-A (JP)
Title: Surface-treated steel sheet having high corrosion resistance
Inventor: IKEDA SATOSHI
IPC: C23C28/00
Filed: 1991-04-09
Abstract: PURPOSE:To provide a surface-treated steel sheet having satisfactory corrosion resistance in an environment in which a steel sheet is liable to gather rust from other material as well as in an ordinary environment. CONSTITUTION:A Zn-Ni alloy plating layer having 10-16wt.% Ni content, a zinc phosphate film, a chromate layer and a resin coating film are successively formed on the surface of a steel sheet by 10-50g/m<2>, 0.1-3g/m<2>, 10-200mg/m<2> (expressed in terms of Cr) and 0.2-2.0mum, respectively.
Patent JP-H09265324-A (JP)
Title: Boom device for fluid transportation
Inventor: NUNOHARA TATSUYA
IPC: E04G21/04
Filed: 1996-03-28
Abstract: PROBLEM TO BE SOLVED: To provide a boom device for fluid transportation capable of accurately suppressing the vibration of a boom. SOLUTION: A position sensor 20 detects the stroke of an elevating and lowering cylinder 4 and supplies the detected output to a CPU 21. The CPU 21 fetches the supplied stroke (x) and computes a target distortion amount εaccording to ε=ε0 -k.(x-x0 )-c.x<1> . In this case, ε0 is a distortion amount at the time of non-vibration, (k) and (c) are coefficients, x0 is a cylinder length at the time of non-excitation and x' is a cylinder moving speed. Also, the cylinder moving speed x' is obtained by dividing the change of the cylinder length x0 by the time. The CPU 21 supplies the computed target distortion amount εto a servo amplifier 23 as a driving command. To the servo amplifier 23, an actual distortion amount detected in a distortion sensor 22 is supplied as well.  The servo amplifier 23 supplies output corresponding to the difference of the target distortion amount E and the actual distortion amount to an electromagnetic servo valve 19 and performs control so as to match the distortion amount with the target distortion amount ε.
Patent JP-S5728319-A (JP)
Title: Varnish impregnation treatment of coil
Inventor: ASADA MASAO
IPC: H01B3/42
Filed: 1980-07-29
Abstract: PURPOSE:To drip a liquid resin composition on a coil to execute impregnation for hardening at room temperature by using jointly organic peroxide and a curing accelerator on an unsaturated polyester solution. CONSTITUTION:Organic peroxide such as ketone(hydro)peroxide as a curing agent is added to the solution wherein various kinds of unsaturated polyester are dissolved into a monomer such as ethylene in the ratio of 100wt% of unsaturated polyester solution to 0.1-0.5wt% of organic peroxide such as ketone(hydro) peroxide. For curing acceleration representatively intermetallic compound or amino compound is used being respectively selected according to the kinds of organic peroxide so as to contain the metal of about 3X10<-4>-0.3wt% in the case of intermetallic compound and 0.01-3wt% in the case of amino compound. Or it can be made two  part liquid types consisting of a curing agent system and a curing accelerator system  which are blended immediately before the use. By dripping the solution of said constitution on a rotating coil, the coil can be dried at the room temperature and  exellently impregnated.
Patent JP-2000291760-A (JP)
Title: Crank link mechanism and cold-forging machine using the same
Inventor: AMARI MASAHIKO
IPC: F16C3/04
Filed: 1999-04-12
Abstract: PROBLEM TO BE SOLVED: To provide an allowance in operation and to shorten a cycle time to improve the working efficiency by rotating one end of a crank about a basic end on a straight line, rotatably connecting a rod to the other end of the crank, and rotatably connecting a link to the other end of the rod to be rotatable to a slider. SOLUTION: A crank 1 is rotated on one end E and the other end D makes the circular motion. A slider 5 is slidable along a straight line X passing a center E of the rotation of the crank 1. One end D of a first rod 2 is rotatably connected to the other end D of the crank 1, one end B of a second rod 3 is rotatably connected to the other end B of the first rod 2, and the other end A is rotatably supported by a slider 5. A link 4 is oscillated on one end C, and the other end B is rotatably connected to a connection point B of the rods 2, 3. Whereby a front dead center and a back dead center of the slider 5 in accompany with the rotation of the crank 1 are positioned so that the rods 2, 3 are overlapped to the straight line X, and the point C is positioned on a straight line Y perpendicular to the straight line X at the back dead center of the slider 5.
Patent JP-S61264219-A (JP)
Title: Method for measuring quantity of liquid in self-running measuring tank
Inventor: INOUE KIYOSHI
IPC: G01F17/00
Filed: 1985-05-17
Abstract: PURPOSE:To detect the quantity of a liquid independently of the variation of the liquid surface by standing level gauges in four corners of a self-running measuring tank an reading and operating a maximum value and a minimum value of them when the quantity of the liquid in the tank mounted on an automobile or the other moving body. CONSTITUTION:When the quantity of the liquid stored in a rectangular parallelopiped- shaped or elliptical tank 1 mounted on the automobile or the like is measured, level gaufes 3a-3d are stuck vertically to four corners of the tank 1, and the height of an inclined liquid surface 2 is detected. If the liquid surface 2 is inclined as shown in the figure, the gauge 3a indicates the highest, value and the gauge 3d indicates the lowest value, and these values Hmax and Hmin obtained by a comparator 4 and a length A of the longer side and a length B of the shorter side of the inside face of the tank 1 are used to operate a quantity Q of the liquid. That is, the quantity of the liquid is obtained in an arithmetic unit 5 in accordance with an equation Q= AXBX(Hmax+Hmin)/2 and is displayed on a display device 6. Thus, the accurate measured value is obtained independently of the variation of the liquid surface 2.
Patent JP-H11284023-A (JP)
Title: Semiconductor device
Inventor: SANO NOBUYUKI
IPC: H01L21/60
Filed: 1998-03-30
Abstract: PROBLEM TO BE SOLVED: To manufacture minute semiconductor device by forming a lead-out electrode of a conductive film which extends onto an insulation film applied to a semiconductor device surface and providing an extension part of a conductive film with a flat part which is adhered to a wiring pattern formed almost parallel to a semiconductor device surface and almost in the same height. SOLUTION: An insulation film 10 is etched and removed by using a polyimide film 11 as a mask, and an electrode 6 is exposed. A lead-out electrode metallic film 13 which is adhered to the exposed electrode 6 and the polyimide film 11 is formed all over them. A power supply for plating is connected to the lead-out electrode metallic film 13 and a lead-out electrode 15 is formed. A flat part of the lead-out electrode 15 and a wiring pattern are connected by solder, etc. It is desirable that a flat part is formed almost parallel to a semiconductor surface and almost as high as it. Thereby, it is possible to pattern a polyimide film accurately and to fine an electrode.
Patent JP-H10291425-A (JP)
Title: Drive unit for four-wheel drive vehicle
Inventor: MOTOIKE KAZUTOSHI
IPC: B60K17/344
Filed: 1997-04-22
Abstract: PROBLEM TO BE SOLVED: To provide a drive unit for a four-wheel drive vehicle which can suitably supply lubrication oil in a cylindrical rotating shaft in a state in which a vehicle runs. SOLUTION: Lubrication oil stirred by a ring gear 148 when a ring gear mount case 150 is rotated is supplied in an annular spacer 196 through a through hole made in a transfer case 134, an opening made in the annular spacer 196, and a cut groove 222 made in the upper side of the annular spacer 196 and then is supplied in the ring gear mount case 150 communicating with the annular spacer 196. Therefore, the lubrication oil can be suitably supplied in the ring gear mount case 150 in a state in which the lubrication oil needs to be supplied, that is, in a state in which a vehicle is running and hence the ring gear mount case 150 is being rotated.
Patent JP-2000292177-A (JP)
Title: On-vehicle navigator system
Inventor: TAKIMOTO SHUHEI
IPC: G01C21/00
Filed: 1999-04-12
Abstract: PROBLEM TO BE SOLVED: To accurately detect a position and at the same time cope with the change in the configuration of a sensor by changing a driver by equipping an interface card for interfacing between each kind of sensor and a personal computer and providing a device control part for driving the interface card. SOLUTION: A personal computer 2 such as a notebook-type personal computer is provided with a driver 3 consisting of a serial port control part 3a for controlling a serial port 1a and a UPP control part 3b for controlling a UPP card 1b, a sensor processing part 4 for selecting a sensor signal to be used, adjusting the unit of data, and synchronizing asynchronous sensor data, and the like. The digital output of a GPS receiver 21, an optical fiber gyro 22, and the like is passed through the serial port 1a, the analog output of a vibration gyro 23, a speed regulator 24, a vehicle speed sensor 25, and the like is passed through the UPP card 1b and is inputted to the personal computer 2, thus obtaining a higher performance function than an exclusive navigator.
Patent JP-H042358-A (JP)
Title: Centrifugal blood pump
Inventor: TERANSU JIEI DAARU
IPC: A61M1/10
Filed: 1990-04-19
Abstract: PURPOSE: To reduce the dangers of hemolysis and thrombosis by smoothing the speed at which blood flows in a pump by means of impeller vanes, thereby reducing the cavitation of a pump. CONSTITUTION: A front impeller part 16 has long vanes 30 and short vanes 32 inserted between the vanes 30, projects toward the axis of an inlet passage 12, and has an end face coinciding with the outer form of a front housing part 2. A rear impeller part 18 has short vanes 34 and coincides with the shapes of the outsides of the vanes 32, 30, and the vanes 34 continue radially to the vanes 30 on the side face of a rear housing part 4. The parts of the vanes 34, 30 projecting toward the rear housing part 4 prevent recirculation of blood and discharge the blood from the region of a shaft 20 through the rear housing part 4, thus preventing thrombosis.
Patent JP-S63297411-A (JP)
Title: Polyvinyl terminal functional macromer, polymer of same and contact lens therefrom
Inventor: KAARU EFU MIYUURAA
IPC: C08F299/08
Filed: 1988-04-28
Abstract: Disclosed is a poly-unsaturated polysiloxane of the formula I, <CHEM> wherein at least three of A are a reactive vinyl containing group as defined in the specification and the further variables are as defined in the specification. The invention concerns even polymers of those compounds and copolymers thereof with up to 95 % of one or more hydrophilic or hydrophobic reactive vinyl monomers, or mixture thereof. The respective (co)polymers are suitable for the manufacture of contact lenses.
Patent JP-H0438345-A (JP)
Title: Wooden framework-reinforced ventilation panel and its technique
Inventor: SATO NOBUO
IPC: E04B1/70
Filed: 1990-04-20
Abstract: PURPOSE:To enable natural ventilation, which is hardly costed, by sticking a plywood for wall exclusive structure composed of a plywood for structure in specified thickness having an air hole and a plywood for floor exclusive structure to a wooden framework structure formed of a post, a stud, a girder, a beam, a diagonal bracing, a lintel, etc. CONSTITUTION:A framework-reinforced ventilation panel (a wall exclusive framework-reinforced ventilation panel, a floor and ceiling exclusive framework- reinforced ventilation panel) is stuck to a structure (a wall, a floor and a roof) consisting of a post, a girder, a beam, a diagonal bracing and a lintel respectively in order to compensate the weak points of a wooden framework technique and a wall type technique. An air layer is formed in a shape that a foundation material in approximately 6mm is held between the panel and a finishing material (the inside: a gypsum board, etc., a floor: a floor material, a plywood, etc.) in inner and outer walls and a floor except a ceiling section at that time.
Patent JP-H08279476-A (JP)
Title: Forming method for ohmic electrode
Inventor: ARAKAWA KATSUYUKI
IPC: H01L21/28
Filed: 1995-04-04
Abstract: PURPOSE: To provide an ohmic electrode with a low resistance at a low cost, by forming an Au layer with a thickness equal to or smaller than a given times the thickness of AnGe, Ni, and AuGe layers in sequence and alloying them. CONSTITUTION: An AuGe layer 2 as a first layer is formed on an n-type GaAs compound semiconductor 1 in a vacuum deposition method, and a second Ni layer is formed thereon. An Au film 4 thicker than the AuGe layer 2 is formed in the vacuum deposition method. Then, an ohmic-electrode metallic layer 5 is treated into alloyed state at a temperature above a eutectic point of AuGe with atmosphere of inert gas. The ohmic-electrode alloy layer made of AuGe, Ni, and Au layers and the compound semiconductor layer 1 made of GaAs are reacted in an alloyed state to formed an ohmic electrode 6 including an Au-Ga region and an Ni-Ge region. In this case, contact resistivity is lowered sufficiently and a change in contact resistance is reduced so that accuracy in contact resistance can be improved.
Patent JP-H06314384-A (JP)
Title: Fire alarm system
Inventor: TANAKA OSAMU
IPC: G08B17/00
Filed: 1993-04-30
Abstract: PURPOSE:To provide the fire alarm system which reduces fire misalarming by varying an alarm level according to the situation and can find an actual fire in its early stage. CONSTITUTION:A processing part 3 which receives an alarm sense output from an analog fire sensor 1 and finds the feature quantity of the time series data of the analog sense output. A certainty decision part 4 determines the degree of fire/non-fire certainty on the basis of a judgement rule corresponding to a standard fire alarm level set previously on the basis of the feature quantity when the analog sense output exceeds the fire alarm level. An alarm level determination part 6 determines variation in fire alarm level on the basis of the determined degree of certainty. An alarm judgement part 10 starts counting an accumulation time once the analog sense output reaches the fire alarm level varied and determined by the alarm level determination part 6, and judges whether or not the analog sense output value exceeds the fire alarm level at the end of the counting, thereby sending a fire alarm through a fire alarming part 13 when the fire alarm level is exceeded.
Patent JP-H05300185-A (JP)
Title: Frequency drift compensating system
Inventor: OMORI HIDEAKI
IPC: H04L27/227
Filed: 1992-04-23
Abstract: PURPOSE:To provide a frequency drift compensating system to automatically cancel the varying quantity of a delay device and the frequency drift of a transmission and reception part which brings distortion such as lowering of the level of output or the like in delay detection. CONSTITUTION:After reception angle modulating signals are converted to an intermediate frequency by a frequency converter for which a VCO 12 is a local oscillator, the compensating system branches into three, and the two of three are respectively applied to a first mixer 4 and a second mixer 6. The remaining one branches into two after being delayed by a delay device 3 and one of them is applied to the first mixer 4, and a detected signal is taken out. The other signal which is branched after being delayed receives the phase shift of pi/2 by a phase shifter 5, and thereafter it is applied to the second mixer 6, and it is inputted to a third mixer, together with the detected signal, and then is applied to the controlling terminal of the VCO 12.
Patent JP-H08277755-A (JP)
Title: Intake heater
Inventor: KATO HIDESUMI
IPC: F02M31/135
Filed: 1995-04-05
Abstract: PURPOSE: To improve the heating efficiency of mixed gas supplied from a carburetor and also, efficiently evaporate unevaporated liquid-form fuel. CONSTITUTION: At least two partially cylindrical heaters 31a and 31b installed along the flow of mixed gas and a heater 15 in contact with these heaters 31a and 31b and heating these heaters 31a and 31b are installed at the inner peripheral wall of an intake pipe which connects the intake path of a carburetor with the intake port of a cylinder. And, the heater 15 is arranged along the flow of mixed gas inside the intake pipe. And, this heater 15 is caught with the heaters 31a and 31b, and a current is supplied to the heater 15 through these heaters 31a and 31b. Moreover, the heaters 31a and 31b are constituted of semicylindrical members.