baber/WOPTO huggingface dataset:
Patent JP-S545317-A (JP)
Title: Rejection system of interferring distortion caused in demodulation signal due to interference between fm signals
Inventor: ISHIGAKI YUKINOBU
IPC: H03D3/00
Filed: 1977-06-14
Abstract: PURPOSE:To acgieve the reproduction with high fidelity, by remarkably rejecting interferring distortion, through the compensation operation to the output of demodulator after a given waveform conversion for the envelope detection wave of interferred FM signal.
Patent JP-S59195823-A (JP)
Title: Electrode formation
Inventor: ISHIZUKA YOSHIYUKI
IPC: H01L31/10
Filed: 1983-04-20
Abstract: PURPOSE:To form an electrode which extends up to the first semiconductor region from the surface of second semiconductor region under the condition that it is insulated from such second semiconductor region by removing an insulating film at the bottom part of through hole while said insulating film is left at the side surface of through hole and then forming an electrode which is in contact with the first semiconductor regin through the through hole. CONSTITUTION:A through hole 17 is formed through the first SiO2 film 16 and epitaxial layer 15. A second SiO2 film 18 is provided at the side surface and bottom surface of through hole 17 and at the surface of first SiO2 film 16 and etching is carried out to the entire surface including the through hole 17. At this time, the second SiO2 film 18 is etched only in the vertical direction and the second SiO2 film 18 is removed from the bottom surface of through hole 17 and the first SiO2 film 16 under the condition that the second SiO2 film 18 is left only at the side surface of through hole 17. Thereafter, the first electrode 19 to be connected electrically to the first P layer 14 is formed in such a condition that it is insulated from the epitaxial layer 15 through the through hole 17 using Mo or Al.
Patent JP-H09253823-A (JP)
Title: Pressure casting method of molten metal
Inventor: SHIRAKAWA MASAKI
IPC: B22D17/22
Filed: 1996-03-26
Abstract: PROBLEM TO BE SOLVED: To prevent the damage of a product without damaging to a core pin by executing a push-out movement of ejecting pins at the same time of a die opening movement. SOLUTION: Injection of molten metal into a cavity in the die is completed, and after almost completing the solidification of the molten metal, a movable die plate 5 is shifted to the direction of the arrow mark A to separate a fixed die 2 and a movable die 3. At the same time of starting the die opening, an ejecting rod 13 is driven to the direction of the arrow mark B to start to separate a cast product 30 from a movable core 12 and the core pin 16 with the ejecting pins 17. Therefore, since the die separation is executed while the biting force of the molten metal to the core pin 16 caused by the solidifying shrinkage is yet weak, even if the sequential casting is executed, cracking and deformation on a hole 31 in the product 30 are not developed.  Then, the damage of the core pin 16 is not developed and further, the good product free of any flaw on the base part of the hole 31 in the product 30 can be obtd. without damaging the core pin 16 during casting.
Patent JP-H02249905-A (JP)
Title: Peak position detecting method
Inventor: MIO SHIGEMI
IPC: G01B11/245
Filed: 1989-03-24
Abstract: PURPOSE:To detect the shape peak position in a short time by allowing two sets of light cut-off shape detectors consisting of a slit shape light source and a photodetector to be orthogonal to each other on an optical axis. CONSTITUTION:An object 1 to be inspected is an object having a mountain shape, and an optical system is formed by light cut-off detecting optical systems A, B being orthogonal to each other on the surface of the object 1 to be inspected on an optical axis. In this state, a light beam emitted from a semiconductor laser 2 of an A system forms an image of a slit shape on the surface of the object 1 to be inspected through a condensing lens 3, a slit 4 and an image forming lens 5. Its image is taken in by an image pickup camera 6, and sent as image A data to a processor 10. In the same way, from an image pickup camera 16 of a B system, image B data being orthogonal to the image A is sent to the device 10. Subsequently, the device 10 moves stages 21, 22 in order to derive a shape peak position of a prescribed area of the object 1 to be inspected. Next, only the laser 2 is turned on, and images of the cameras 6, 16 are taken in. Also, the laser 2 is turned off, only a laser 12 is turned on, the images of the cameras 6, 16 are taken in, and the shape peak position is detected.
Patent JP-H03269372-A (JP)
Title: Instrument for measuring frequency characteristics
Inventor: TOMINAGA MISA
IPC: G01R27/28
Filed: 1990-03-20
Abstract: PURPOSE:To constitute an inexpensive circuit by executing the logarithmic conversion of an output from a sine wave oscillator and that of an output from a circuit to be measured and finding out a difference between both the logarithmic conversion outputs. CONSTITUTION:The 1st peak detection circuit 11 finds out the peak value VI of an input signal and the 2nd peak detection circuit 14 finds out the peak value VO of an output outputted from the circuit 13 to be measured. When the output of both the circuits 11, 14 are inputted to logarithmic computing elements 12, 15, logVI and logVO are obtained from respective elements 12, 15, (logVO - logVI) is computed by a differential amplifier 16 and a gain circuit 17 amplifies the output of the amplifier 16 by a prescribed scale to find out the gain of the frequency. Thus, the frequency characteristics of the circuit 13 to be measured can be found out by successively changing the output frequency of the since wave generator 10 and finding out the gain of the circuit 13.
Patent JP-H06255581-A (JP)
Title: Ship bottom antifouling method
Inventor: KATAOKA KEISUKE
IPC: B63B59/04
Filed: 1993-03-05
Abstract: PURPOSE:To prevent the bottom from being fouled by the adhesion of barnacles and the like by covering the lower part of the bottom with a bottom cover with a specified space in between, and raising the outer peripheral edge of the bottom cover above the draft line to lock it, thereby isolating the bottom from the contact of sea water flow. CONSTITUTION:After a ship 2 is moored to a quay 3, ropes 12 are connected to a hull, and a bottom cover 1 is thrown into the sea from the bow top side, for instance. While being sunk into the sea by the weight of weights, the bottom cover 1 is gradually moved onto the stern side along the lower part of the bottom so as to cover the whole surface of the bottom with a specified space in between. The outer peripheral edge of the bottom cover 1 is then raised above the draft line and locked so as to hold sea water between the bottom cover 1 and the bottom. The sea water held between the bottom cover 1 and the bottom is drained by a pump P through a hose 15, and rainwater stored in a tank is supplied into the space between the bottom cover 1 and the bottom utilizing a head. The bottom is thereby isolated from the sea water so as to prevent the adhesion of barnacles, seaweeds, and the like.
Patent JP-2000264485-A (JP)
Title: Image forming device
Inventor: TAKEDA AKIO
IPC: B41J13/076
Filed: 1999-03-16
Abstract: PROBLEM TO BE SOLVED: To facilitate replacement of a roller by providing a roller mounting and demounting tool with a rod-like main body, forming an operation part on one end of the main body, forming a roller engagement means to be engaged and disengaged with respect to a conveying roller on the other end of the main body, and mounting and demounting the conveying roller in a machine body by the roller mounting and demounting tool. SOLUTION: A roller replacement tool 20 is inserted in the F direction. A point 463 of a driving shaft 46 is inserted into a hole 222 of an engagement means (release member) 22 for positioning a roller 45 and the roller replacement tool 20 (a). The release member 22 is moved in the F direction with respect to an operation part (holding member) 21. At this time, a hook part 451 is opened by pressed by a taper part 223 of the release member 22, a claw part 452 is drawn out from a groove 461 to be disengaged. Furthermore, a hook part 453 is inserted into a drawing groove 212 of a holding member 22 (b). By drawing out the roller replacement tool 20 in the G direction, the roller 45 is released from the driving shaft 46. A new roller can be mounted by a reverse operation.
Patent JP-H04307380-A (JP)
Title: Magnetic domain observation device
Inventor: MIFUNE TATSUO
IPC: G02B21/00
Filed: 1991-04-03
Abstract: PURPOSE:To obtian a clear image of a magnetic domain pattern of a magnetic body in static and dynamic states by using a semiconductor laser for a light source and by utilizing a vertical Kerr effect. CONSTITUTION:Coherence of laser beam is reduced by using a semiconductor laser 3 as a light source and by scanning light which is gathered at an opening diaphragm 6 by using an acousto-optical element 4 within the opening diaphragm 6. This light is allowed to enter a magnetic body sample 9 skewly as a straight line polarization by a polarizer 7 and only a reflection light where a polarization plane is rotated due to the vertical Kerr effect is taken in by an analyzer 10 and then is detected by a CCD camera 12.
Patent JP-S51147397-A (JP)
Title: Intercepting lever protector
Inventor: TONEGAWA KASHI
IPC: G07B15/00
Filed: 1975-06-12
Abstract: PURPOSE: When the intercepting lever used for car gates for a parking garage is subjected to horizontal force, this protector prevents the breaking of the intercepting lever. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-H10252760-A (JP)
Title: Sealed four-row tapered roller bearing for work roll of rolling machine
Inventor: NEDER GUENTER
IPC: F16C19/54
Filed: 1998-03-06
Abstract: PROBLEM TO BE SOLVED: To provide a roller bearing capable of being universally employed for various purposes and lubrication modes, reducing abrasion, and having good heat radiation by forming grooves or voids extended in the radial direction on at least one of facing contact end faces of two inner ring portions. SOLUTION: The facing end faces 17, 18 of inner ring portions 1, 2 are kept in direct contact with each other, and multiple radial grooves 19 are provided on the end faces 17, 18 distributively in the peripheral direction. The separation/ connection section between the end faces 17, 18 is sealed by a seal ring 20 made of rubber or a plastic, for example. The lubricant in the radial grooves 19 lubricates the inner ring end faces 17, 18 relatively rotated during operation and/or the gap between the inner periphery 36 of the inner ring portions 1, 2 and a journal 37, and it also seals a bearing chamber 28 from the journal 37. The heat generated in a bearing can be discharged to the end faces 17, 18 through the grooves 19, the operation state of the bearing is kept satisfactory, and the life of the bearing can be extended.
Patent JP-S51147595-A (JP)
Title: Process for preparing polybutylene terephthalate
Inventor: TAKEUCHI NOBUAKI
IPC: C08G63/78
Filed: 1975-06-12
Abstract: PURPOSE: A process for preparing polybutylene terephthalate at lower cost with little discoloration and a minimum amount of insoluble foreign matters. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-H04306708-A (JP)
Title: Travelling speed controller for unmanned vehicle
Inventor: SUZUKI HAYATO
IPC: B65G43/00
Filed: 1991-04-04
Abstract: PURPOSE:To supply the travelling speed controller for an unmanned vehicle, which can reduce labor, time and cost at the time of changing a travelling route and reduce the cost of the whole unmanned vehicle. CONSTITUTION:The travelling speed controller for the unmanned vehicle 14 guided by a guide tape 11 is provided with a wide tape 11a and a narrow tape 116, which constitute the guide tape 11, and which indicate mutually different travelling speed a tape/speed detection sensor 12 which detects the indication speed of the wide tape 11a and the narrow tape 11b, and a control unit 13 which controls the travelling speed of the unmanned vehicle 14 based on the detecting result of the tape/speed detection sensor 12.
Patent JP-S56168459-A (JP)
Title: Searching system for faulty repeater
Inventor: KITAMI TOKUHIRO
IPC: H04B17/40
Filed: 1980-05-30
Abstract: PURPOSE:To realize a highly accurate searching for a faulty repeater with a simple constitution, by eliminating the necessity of incorporating a CMI (coded mark inversion) code adverse converter into a repeater. CONSTITUTION:An auxiliary code converter 16 is put between an exclusive OR circuit 5 and a CMI code converter 6, and a pulse generator 17 which generates a repeating point designating pulse having a 1-bit mark in a cycle of TC=1/fC is provided between the converter 6 and an electric transmisssion line 7 in place of a repeating point designating signal generator. The delay time of a delaying circuit 19 is set as T=1/(2fo). Then an auxiliary code conversion is carried out after a multiplication of a polynomial of X+1 with the clock frequency fo, and furthermore a CMI code conversion is carried out. Then an exclusive OR operation is carried out to the repeating point designating pulse, and at the same time a division of a polynomial of 1/(X+1) is carried out with the clock frequency 2fo through a repeater.
Patent JP-H04307701-A (JP)
Title: Printed wiring board, its intermediate body, and its manufacture
Inventor: OFUSA TOSHIO
IPC: H01C17/06
Filed: 1991-04-04
Abstract: PURPOSE:To provide a printed wiring board, which enhance the accuracy of the resistance value of a resistance element between printed interconnections formed of a thin-film resistance interconnection, and which restrain the resistance element from being broken and also to provide its intermediate body and its manufacturing method. CONSTITUTION:At a first intermediate body, a resin film 2 is formed on the selective region of a copper foil 1 and a resistance film 3 is formed on the copper foil 1 in which the resin film 2 is formed. At a second intermediate body, the resistance film 3 at the first intermediate body is pasted on an insulating substrate 4. At a printed wiring board, the copper foil 1 is removed from a region excluding a region corresponding to an interconnection 12 at the second intermediate body and the resistance film 3 is removed from a region corresponding to the resin film 2 and excluding the region corresponding to the interconnection 12. 31 in the figure is a resistance interconnection formed by etching the resistance film 3.
Patent JP-H05223830-A (JP)
Title: Method and device for detecting dispensated quantity
Inventor: KITAJIMA MASAKAZU
IPC: G01F1/66
Filed: 1991-04-04
Abstract: PURPOSE:To provide measurability for the liquid quantity (volume) of a drop of a reagent, sample, etc., discharged out of a nozzle and measure the volume of each discharged drop accurately even in case drops are discharged continuously. CONSTITUTION:A light flux 9 is put incident so as to intersect a drop 8 discharged from a dispensating nozzle 1. Using a photo-sensor 13 receiving the light flux 9, the time in which the light flux generated during the drop 8 intersecting the light flux 9 is varying, is measured by a time measuring circuit 14, and the volume of the drop 8 discharged is determined on the basis of this time according to measurement.
Patent JP-2000269572-A (JP)
Title: Fiber laser and optical amplifier
Inventor: ITO KATSUHISA
IPC: H01S3/042
Filed: 1999-03-17
Abstract: PROBLEM TO BE SOLVED: To improve introduction efficiency of excitation light to a fiber laser. SOLUTION: One continuous laser fiber 10 is folded several times and is bundled and spaces in the bundle are filled with a matching oil. The bundle of the laser fiber 10 and the matching oil are covered with a bundle part 20, having a transparent fluorine resin cladding and a mirror-finished gold-plated metal tool and excitation light is introduced into it by using an excitation light introducing fiber 30. While the introduced excitation light undergoes reflections inside the bundle part 20, it is separately absorbed by individual doped cores of the bundle of the laser fiber 10.
Patent JP-S60216717-A (JP)
Inventor: KUDOU KAZUHIKO
IPC: H02H3/26
Filed: 1984-04-12
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-S56167563-A (JP)
Title: Steering device for car
Inventor: FURUKAWA OSAMU
IPC: B62D7/15
Filed: 1980-05-29
Abstract: PURPOSE: To improve the maneuverability of a car by steering both of front and rear wheels in the same direction at a small steering angle of a steering wheel and steering front and rear wheels oppositely to each other or only the front wheel as reducing the steering angle of the rear wheel to zero or near to zero at a large steering angle of the steering wheel.  
     CONSTITUTION: A steering wheel 10 is turned to steer respectively front wheels 15 via gear boxes 16, 12, a rod 13, and a knuckle arm 14 and rear wheels 26 via the gear box 16, an input shaft 17, a crank mechanism 24 in a crank case 18, a rod 22, and a knuckle arm 25. The ratio between the turning radius of a crank rod 20 of the crank mechanism 24 and the eccentricity of the output rod 22 from the input shaft 17 can be changed for selecting the steering angle of rear wheels 26 optionally. The steering direction of rear wheels is changed by the turning angle of a transmission member 19, that is, the steering angle of the steering wheel 10. When the above-said steering angle is small, front and rear wheels 15 and 16 are steered in the same direction, and when large, both wheels 15 and 16 are steered oppositely to each other. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H08267238-A (JP)
Title: Method for controlling output of power source for consumable electrode gas shielded pulsed arc welding
Inventor: SATO MASAHARU
IPC: B23K9/09
Filed: 1995-03-29
Abstract: PURPOSE: To improve the deposition efficiency by setting the prescribed peak voltage having the prescribed voltage gradient in the peak period of the constant voltage characteristic thereby reducing generation of the spatter. CONSTITUTION: In the peak period to feed the peak current of the constant voltage characteristic, the peak voltage having the prescribed voltage gradient dV/dt in the range of -0.7 to 0V/ms is set as the voltage to be applied between the welding wire and the base metal. That means, the peak voltage where the voltage value is the prescribed constant value, or the peak voltage where the voltage value is gradually reduced with lapse of time. Generation of the spatter due to the contact short circuit of the droplet at the wire tip with the molten pool is reduced to achieve the stable CO2 gas pulsed arc welding where the arc break is extremely rare in the first layer welding of the butt joint.
Patent JP-S546776-A (JP)
Title: Manufacture of junction-type single gate field effect transistor
Inventor: KIKUCHI SADATAKE
IPC: H01L21/337
Filed: 1977-06-17
Abstract: PURPOSE: To obtain a high-reliability single gate JFET by forming the source-drain diffusion layer after setting up the pinch-off voltage or the channel saturation current which is proportional to the reverse dielectric strength between the upper and lower gates via thermal treatment in the active gas. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S62228645-A (JP)
Title: V-type engine
Inventor: KAGEYAMA AKIRA
IPC: F02B75/22
Filed: 1986-03-29
Abstract: PURPOSE:To uniform the output from each cylinder by arranging a plurality of cylinders in V-type with a narrow angle while arranging the openings of cylinder of intake and exhaust ports in a row for same bank and directing the lifts of the intake and exhaust valves in same direction for same bank. CONSTITUTION:Two cylinders 2a, 2c at the left side bank and two cylinders 2b, 2d at the right side bank are arranged alternately in a common cylinder block 1. Intake openings 5, 5a and exhaust openings 6, 6a of the cylinders 2a, 2c and 2b, 2d are arranged in a row in parallel with a crankshaft so as to drive the intake and exhaust valves 7, 8 of each cylinder by means of an integral cam shaft 9. The intake port 5 at the left side bank is extended to the right side face of a cylinder head 3 while the intake port 5 at the right side bank is extended to the left side face of the cylinder head 3 and coupled with an intake manifold 10. The exhaust port 6 is also arranged similarly.
Patent JP-S62229562-A (JP)
Title: Head drum
Inventor: NONOYAMA HIDENORI
IPC: G11B5/52
Filed: 1986-03-29
Abstract: PURPOSE:To contrive a simplified structure, thin profile and cost-down by adopting a constitution that a leaked magnetic flux from a magnet provided to a stator side is detected by a rotary magnetic head to obtain a prescribed signal. CONSTITUTION:A magnetic tape 30 is wound on a head drum 1 by a prescribed winding angle, e.g., 90 deg. and rotary magnetic heads 20, 20' recording a signal to the magnetic tape 30/or reading the signal recorded on the magnetic tape 30 and a stator 10 fixed to a chassis 4 are provided. Then a magnet 29 in the stator 10 is provided near the turning locus of the rotary magnetic heads 20, 20' and a prescribed signal is obtained by allowing the rotary heads 20, 20' to detect the leakage magnetic flux from the magnet 29. Since a servo signal with respect to the rotary magnetic heads 20, 20' is detected by the rotary magnetic heads 20, 20' themselves, the simplified structure, thin profile and cost-down due to the reduction in number of components are attained.
Patent JP-S60218268-A (JP)
Title: Cord taking-up apparatus
Inventor: WATANABE SHIYUUJI
IPC: B65H75/48
Filed: 1984-04-12
Abstract: PURPOSE:To reduce the contact-point abrasion by setting the contact-point side due to pressing-extrusion lower than the contact point for the installation of other parts, in the height of the contact point of a contact piece from a reel body, in the contact-piece structure of a cord taking-up apparatus built into domestic electrical products. CONSTITUTION:A reel body for taking-up a power cord 19 is formed by integrally joining a reel member 1 including a spring case part 2, brake ring 3, and a driving gear 4, and a reel member 6 having a contact-piece installation part 7 opposed to a slip-ring supporting board 15 on the outside surface, by a screw 10. On joining by the screw 10, a pair of contact pieces 9 made of elastic material are installed onto the above-described installation part 7 at the same time. In this case, the contact piece 9 is formed into bifurcated form having contact points 9a and 9b in the contact part with slip rings 17 and 18. The contact point 9a is the contact point through the installation of separate parts, and the contact point 9b is a contact point having a convex form through pressing-extrusion, and the contact point 9b is set lower than the contact point 9a.
Patent JP-H07277296-A (JP)
Title: Spacecraft orbital maneuvering system
Inventor: YAMAGUCHI YOSHITAKE
IPC: B64G1/26
Filed: 1994-04-11
Abstract: PURPOSE:To maneuver a spacecraft into an orbit without the need for consumables such as propellants by connecting the spacecraft whose orbit is to be changed to a cable to capture it, regulating the position of another spacecraft through the driving of an orbit-changing driving thruster, maneuvering the spacecraft into the orbit via the connecting cable as the spacecraft fly, and releasing the cable after the orbit has been changed. CONSTITUTION:A capturing drive 13 and a thruster drive 14 are connected to a control unit 11. An orbit-changing spacecraft is provided with a capture drive 13 having a connecting cable that freely extends, and a spacecraft whose orbit is to be changed is captured in a specific position by the connecting cable, and an orbit-changing drive thruster is driven to regulate the position of the orbit-changing spacecraft, so that the spacecraft whose orbit is to be changed turns about the orbit-changing spacecraft via the connecting cable and has its orbit changed as it flies; after the orbit has been changed, the connecting cable is released from the orbit-changed spacecraft. The life of the spacecraft is prolonged, and a variety of operations are offered since natural environments such as gravitational fields are not utilized.