baber/WOPTO huggingface dataset:
Patent JP-H08170197-A (JP)
Title: Vertical hanging type racking lever for work
Inventor: TASHIRO TAKAYUKI
IPC: C23G3/00
Filed: 1994-12-17
Abstract: PURPOSE: To eliminate the overlaps of levers and to efficiently hold a long-sized work by providing the bottom end of the racking lever with a detaining plate which is sectorially broader toward a hanging body and projectingly providing the both edges of the detaining plate with erecting walls. CONSTITUTION: The bottom end of the lever 5 pivotally supported to the hanging body 2 of a racking device 1 is provided with the detaining plate 6 broader toward the sleeve plate 3 of the hanging body 2. A detaining pawl of the part to be treated is formed at the front end of this detaining plate 6. Both edges of the detaining plate 6 are provided with erecting walls 16. The lower part of the lever 5 is projectingly provided with a detainer 9 of a spring 7. The lower part of the lever 5 is pulled toward the sleeve plate 3 of the hanging body 2 by a spring 7 to clamp and hold the work between the lower part of the lever 5 and the sleeve plate 3. As a result, even if the lever 5 pivotally supported in a congested state oscillates during the movement of a carrier bar, the lever does not overlap on the adjacent levers.
Patent JP-2000164852-A (JP)
Title: Gallium-indium-nitride-arsenide based epitaxial wafer and high electron mobility transistor using the same
Inventor: TSUCHIYA TADAITSU
IPC: H01L21/338
Filed: 1998-11-25
Abstract: PROBLEM TO BE SOLVED: To realize GaInNAs-based HEMT(high electron mobility transistor) on a GaAs wafer to obtain a high performance HEMT capable of providing low-noise amplification. SOLUTION: An epitaxial wafer comprises a gallium arsenide wafer 1 with its surface laminated in order of precedence by a buffer layer 2, a channel layer 3 having electron affinity higher than that of the buffer layer 2, and a carrier-providing layer 4 having electron affinity lower than that of the channel layer 3. The carrier-providing layer 4 is doped by a donor impurity and the channel layer 3 is constituted of a compound semiconductor comprising one of aluminum, gallium, or indium, or all of them, and either arsenic or phosphorus or both of them, and nitrogen.
Patent JP-H09148145-A (JP)
Title: Doughnut-shaped pole transformer
Inventor: YAMAMOTO SHOJI
IPC: H01F27/02
Filed: 1995-11-28
Abstract: PROBLEM TO BE SOLVED: To lessen the danger of the collapse of a doughnut type pole transformer due to the earthquake or the like and also to finish by simply digging down shallow the ground at the time of the erection of an electric-light pole by a method wherein two pieces of partial bodies, which consist of a core of a circular arc-shaped section and primary and secondary coils, which are formed by winding coils on the outside of the core, are combined with each other to form then into a doughnut shape. SOLUTION: Two pieces of partial bodies, which consist of a core 2 of a circular arc-section and primary and secondary coils 3 and 4, which are formed by winding coils on the outside of this core 2, are combined with each other by clamping fitments 5 to form them into a hollow daughnut shape and a support fitment 6 is arranged on the inner peripheral surface and bottom of a daughnut type pole transformer. Moreover, an insulating treatment is performed between the core 2 and the coil 3, between the coils 3 and 4, between the coil 4 and the fitments 5, between the coil 4 and the fitment 6 and on the upper surface of the doughnut-shaped pole transformer with a resin. The transformer is formed into a dry transformer.
Patent JP-H02178685-A (JP)
Title: Image forming device
Inventor: MATSUMOTO KENICHI
IPC: G03G15/16
Filed: 1988-12-28
Abstract: PURPOSE:To obtain a stable and high quality image by electrifying the surface of an image carrier, detecting the changing amount of the surface potential of the image carrier before and after transfer and controlling a transfer current in order to set the changing amount within a specific value range. CONSTITUTION:First to fourth image forming parts Pa - Pd provided in parallel on the upper part of a carrying belt 8 have photosensitive drums 1a - 1d, and electrifying units 15a - 15d are provided for each drum. Reversal developing is adopted as a developing method. The photosensitive drums 1a - 1d are negatively electrified by the electrifiers, and are developed by negatively electrified toner. The change of the transfer current flowing to the photosensitive drums is detected by surface potential sensors 9a - 9d, and is controlled in order to unify the changing amount before and after transfer. Therefore, when the image forming process which repeats transferring several times, or under such environmental condition that, especially humidity, or the extent of the soil of transfer electrifiers vary, a stable and high quality image can be obtained.
Patent JP-H07198788-A (JP)
Title: In-circuit testing machine with device splitting function
Inventor: IIDA MASAYOSHI
IPC: G01R31/28
Filed: 1993-12-28
Abstract: PURPOSE:To inspect a substrate mounted with devices having more pins than the simultaneously drivable pins an in-circuit testing machines has. CONSTITUTION:A number-of-pin discriminating section 5 discriminates the number of pins of a device mounted on a substrate to be inspected and, when the number of pins of the device is larger than that of an in-circuit testing machine main body 4, a device splitting section 6 splits the device by discriminating the inputoutput relation of the device based on a function description file 3. A testing machine executing section 8 executes tests on each split part.
Patent JP-H03192854-A (JP)
Title: Comparator circuit
Inventor: YOSHIZAWA SHIGEO
IPC: H03K5/19
Filed: 1989-12-21
Abstract: PURPOSE:To compensate a DC offset of an input data signal without need of an external control signal by using a voltage in response to a mean value of the input data signal as a comparison reference of a comparator only when a pattern detection circuit detects a predetermined pattern. CONSTITUTION:In a voltage charged from a differential amplifier 112 to a capacitor 113 when a logic level 1 is outputted, a cut-off frequency fc of a differentiating circuit comprising of a capacitor 105 and a resistor 106 is in the relation of fcapprox.=1/3fb with respect to a signal frequency band fD and the voltage is proportional to the mean voltage of the data by 6 bits, that is, the DC offset. Thus, a comparison reference voltage of the comparator 104 is selected to be a mean value of an input data signal and since the mean value is a mean value of 6-bit 1/0 pattern, then it is an accurate comparison reference voltage. Moreover, a differential amplifier 112 is triggered when a 1/0 pattern is received even during the signal reception and a level fluctuation due to the leakage of the capacitor 113 is refreshed.
Patent JP-H09168806-A (JP)
Title: Method for drawing and rolling seamless metal tube
Inventor: YAMADA MASAYUKI
IPC: B21B27/02
Filed: 1995-12-22
Abstract: PROBLEM TO BE SOLVED: To prevent deterioration of the quality by fin flaws of the material by providing a curved part of roll pass shape of a four-roll stand of the angle in the prescribed range, and forming a flat part parallel to the axis of rotation of the roll on a part of a pass to surely correct the eccentric wall thickness. SOLUTION: Four-roll stands 4a, 4b, 4c, 4d provided with four pair of roll pass whose direction of rolling reduction is phased by 45 deg. are arranged on the poststage of the final two roll stands. The four-roll stands consists of upper and lower pairs of and right and left pairs of roll passes, and a flat part 4g parallel to the axis of rotation of the roll is formed on each side of a curved part of the radius R of curvature adjacent to a flange part 4f of each roll. The curved part is formed so that the angle Φ facing the pass center PC is 30-70 deg.. In setting the roll pass, the zero position of the roll gap can be correctly determined by using a reference bar of square section, and bringing the flat part 4g into contact with the reference bar.
Patent JP-H05166238-A (JP)
Title: Optical reproducing device
Inventor: SATO CHIAKI
IPC: G11B11/10
Filed: 1991-12-18
Abstract: PURPOSE:To reproduce encoded data corresponding to the mutual interval of magnetic domains with high accuracy by converging two beam spots with different phases simultaneously on a recording medium and detecting the intensity distribution of interference beams from plural magnetic domains. CONSTITUTION:The phase of the half of a reproducing laser beam is changed by pi by a phase plate 20 and converged on the recording medium 18 through an objective lens 22. Then, magneto-optical effect is imparted when a pair of the magnetic domains 26 are irradiated by a spot and an analyzer 32 is irradiated through the objective lens 28 by the beam. Only the polarization component of a reproducing phase shift beam is taken out in the same plane and interferenced each other by the analyzer 32. The encoded data is reproduced with high accuracy corresponding to the interval of the magnetic domains by receiving the interference beams by a photodetector 34 and detecting the intensity distribution of the interference beams. Thus, the interval of the magnetic domains is narrowed and recording density is improved.
Patent JP-H03198222-A (JP)
Title: Method for recording information
Inventor: KOBAYASHI TADASHI
IPC: G11B7/00
Filed: 1989-12-26
Abstract: PURPOSE:To reduce crosstalk and to enhance the recording density by preliminarily forming crystalline tracks and amorphous tracks in a recording layer, and recording information therein by changing the phases of both tracks. CONSTITUTION:On a substrate 1, a protective layer 3, recording layer 2, protective layer 4 and another protective layer 5 are successively formed. In the layer 2, crystalline tracks and amorphous tracks are alternately formed adjacent to each other, and information is recorded by irradiation both of the tracks with a light beam to cause phase transition. Recording marks of amorphous or non-equilibrium crystalline are formed in the crystalline tracks, while those of crystalline are formed in the amorphous tracks. Information can be erased by irradiating the tracks with a light beam different from light for recording. When In-Sb-Te is used as the material for the layer 2, reversible phase transition among amorphous, non-equilibrium crystalline and equilibrium crystalline states can be obtained by irradiating the layer with light beams of different conditions. Thus, information can be recorded or erased by using the phase transition.
Patent JP-H09174525-A (JP)
Title: Manufacture of hydraulic inorganic formed plate
Inventor: YAMAOKA SHUJI
IPC: B28B5/02
Filed: 1995-12-22
Abstract: PROBLEM TO BE SOLVED: To provide the manufacturing method of hydraulic inorganic formed plated, which can be wholly homogeneously, accurately and continuously manufactured without developing poor molding. SOLUTION: This manufacturing method of a formed plate is composed of the supplying of raw material from a raw material supplying device 3 onto a water-permeable sheet 2, which advances from one side to the other side, and the squeezing of the excess water in the raw material supplied on the water-permeable sheet 2 by means of a suction means 4 provided beneath the water-permeable sheet 2 for forming. In this case, under the condition that both the end edges of the water-permeable sheet 2 are held down by endless hold-down belts 7, which respectively turn in synchronous with the running direction of the water-permeable sheet 2 and have the desired thicknesses, against the sucking surface of the suction means 4, the raw material is supplied on the water-permeable sheet 2 between both the hold-down belts 7.
Patent JP-2001156577-A (JP)
Title: Reflector for surface acoustic wave and surface acoustic wave filter using the reflector
Inventor: YAMADA YOSHIHIRO
IPC: H03H9/64
Filed: 1999-11-25
Abstract: PROBLEM TO BE SOLVED: To surely obtain a desired characteristic of a surface acoustic wave reflector by realizing weighting as designed with high fidelity. SOLUTION: The total sum of the lengths of a 1st reflection element 231s and 2nd reflection elements 231t, 231t is constant, and the difference between the length of the 1st reflection element 231s and the sum of both the 2nd reflection elements 231t, 231t corresponds to a weighting coefficient of each reflector 231 (331). Furthermore, the distance between the centers of adjacent reflectors 231 (331) and 231 (331) is selected to be λ/2, and the distance between the centers of 1st reflection element 231s and the 2nd reflection element 231t is selected to be λ/4.  A reflection wave reflected in the 1st reflection element 231s and a reflection wave transmitted through the 1st reflection element 231s and reflected in the 2nd reflection element 231t are in opposite phase with a phase shift of λ/2, and the magnitude of the overlapped reflection wave is equal to a difference between the magnitudes of both the reflection waves resulting in that it corresponds to the weighting coefficient of each reflector 231 (331) with fidelity.
Patent JP-2000161007-A (JP)
Title: Connecting structure of turbine rotor blade with disc
Inventor: ASAI KUNIO
IPC: F01D5/30
Filed: 1998-11-26
Abstract: PROBLEM TO BE SOLVED: To reduce a load applied to a fork arranged in an axial center part and to improve the strength reliability of a blade implanted part. SOLUTION: Grooves are positioned on a radially peripheral side sequentially from an axial end part to an axial center part, and the positions of the grooves excluding the grooves 7a, 7h in the axial most end part have a shape projected toward a radial periphery. Thereby, a part of loads applied to a fork 5d positioned in the axial center part is shared to forks positioned on an axial outer side therefrom.
Patent JP-H11165668-A (JP)
Title: Center stand of motorcycle
Inventor: KIKUCHI SHUSUKE
IPC: B62H1/02
Filed: 1997-12-05
Abstract: PROBLEM TO BE SOLVED: To easily perform standing-up operation by supporting a main leg of a center stand by a support member of a car body frame so as to be freely rotatable to a standing-up position and a housing position, locking a hook part of a tension spring on a cross pipe of the car body frame, and tensioning the tension spring between the cross pipe and a spring support part of the main leg. SOLUTION: A main leg 6 can be rotated to a standing-up position and a housing position by inserting a support member 5 of the main leg 6 into the support cylinder 4 by arranging a support member 3 on a cross pipe 2 of a car body frame 1. A spring support part 7 to lock one end of a tension spring 8 is arranged on a leg body 61 of the main leg 6, and a hook part 9 of a separate body from the tension spring 8 is locked on the cross pipe 2. A locking hole 93 of the hook part is moved forward below a supporting point C by rotating the hook part 9 to the front side when standing-up/holding the leg bodies 61 and 62 by rotating them to the front side with the support member 5 as the center. Thus, standing-up operation is facilitated by approaching the supporting point C of the main leg 6 to the cross pipe 2 by shortening the support member 3.
Patent JP-H03195005-A (JP)
Title: Small-sized electromagnet
Inventor: TAKEKOSHI TARO
IPC: H01F7/14
Filed: 1989-12-25
Abstract: PURPOSE:To make a magnetic efficiency good and to be at a low cost by a method wherein an arm part where a bobbin holds a rocking pivot of an attraction plate is provided collectively and the arm part is provided with a springy property. CONSTITUTION:The following are installed: an arm part 2-a provided with a springy property; a spring action point 2-b which receives a springy energizing force of the arm part 2-a and which acts so as to bring a rocking pivot 4-c of an attraction plate 4 into contact with an end face 1-a of a yoke 1; a stepped part 2-c which regulates that the attraction plate 4 is moved to the direction C; and a pulling-out preventive hook part 2-d which regulates that the attraction plate 4 is pulled out in the direction D. An arm shape constituted of them is formed collectively at one end of a bobbin 2. Consequently, the arm part provided with the springy property holds the rocking pivot of the attraction plate 4 and, at the same time, energizes the rocking pivot of the attraction plate 4 in such a way that the pivot is brought into contact with the yoke. Thereby, a small-sized electromagnet whose magnetic efficiency is good, i.e., whose attractive force is high, can be obtained at a low cost.
Patent JP-H06158986-A (JP)
Title: Caisson body for method of propulsive construction
Inventor: UEMURA MAKOTO
IPC: E21D9/08
Filed: 1992-11-20
Abstract: PURPOSE:To improve workability by mechanically excavating the ground by an excavation means at a first caisson-body front end section having the excavation means and removing a truck together with the excavation means from the upper section of a rail when the excavation means reaches a reaching hole. CONSTITUTION:A rail 9 is laid in the front-end opening section of a first caisson body I1 in the width direction, and a bearing strut 13, an upper end of which can be abutted against the ceiling section of the caisson body I1, is disposed upright onto the rail 9. A truck 10, in which a bent or expansion arm 19 with a derrick bucket 15 is installed at a front end, is arranged. Outriggers 11 are expanded and contracted at specified positions and the truck 10 is grounded, the upper end of the bearing strut 13 is abutted against the ceiling section of the caisson body I1 and truck 10 itself is fixed, and required excavation is conducted. Reaction at the time of excavation receives the bearing strut 13 operated in this manner. The truck 10 is removed from the upper section of the rail 9 when an excavation means reaches a reaching hole, thus simply detaching the excavation means.
Patent JP-H09151485-A (JP)
Title: Equipment and method of automatically controlling operation of excavator
Inventor: SHI CHIEON RII
IPC: E02F9/20
Filed: 1995-11-30
Abstract: PROBLEM TO BE SOLVED: To improve work efficiency and simplify a technical mechanism by detecting the movements of various sections of an excavator, and allowing a control unit to judge the kind of work intended by a driver and to automatically implement the selected work. SOLUTION: This excavator is provided with a boom sensor 1, an arm angle sensor 2, a bucket angle sensor 3, and a swing sensor 4, and the movements of a boom, an arm, a bucket, and an upper revolving superstructure are detected. A control unit 12 judges the kind of the work intended by driver based on the data detected by the sensors 1-4 and converts and outputs it in the form identifiable by the driver. When the driver approves it and pushes an automatic work selection confirmation input button 16 and pushes an automatic work implementation button, the control unit 12 outputs the work order signal to an electromagnetic proportional control valve 13 to move a central control valve 14, and the boom, arm, bucket, and upper revolving superstructure and driven to implement the selected work. When the automatic work selection confirmation input button 16 is pushed and the automatic work implementation button is pushed after a work stop, the previous work is continued.
Patent JP-H01178381-A (JP)
Title: Local deoxidation by melting with high density energy beam
Inventor: KAMITO YOSHIMI
IPC: B23K26/352
Filed: 1987-12-29
Abstract: PURPOSE:To enable the welding of high quality having no cavity defect by spraying a deoxidizer on the surface of a work and deoxidizing by absorbing the oxygen gas component included in the work by gasifying it by melting the work surface by radiating a high density energy beam. CONSTITUTION:A deoxidizer particle layer 4 is sprayed on the surface part of a cast steel work 5 in advance and an electron beam is radiated on the work 5 surface to melt it with oscillating an electron beam in circular arcuated shape by a deflection lens coil 2 from the tip of the electron gun 1 of an electron beam device from thereon. The solid soluble oxygen gas component included in the incusion, cavity, shrinkage cavity, etc., of the work 5 inner part is coagulated as a bubble 10 by vaporizing with high temp. by a molten metal 11, diffused toward the work surface and deoxidizing is progressed. The oxygen gas component of a solidified molten metal part 7 is reduced, a porous slag layer 8 is formed on this upper face, a rich layer of the gas component is formed on this part, exhausted by attaining to a vapor to the work 5 outside from this slag layer 8 and the deoxidation can be executed.
Patent JP-H03198916-A (JP)
Title: Unwinding speed controlling method for expanding and reducing system mandrel and its controller
Inventor: NAOI TAKAYUKI
IPC: B21C47/30
Filed: 1989-12-25
Abstract: PURPOSE:To improve the productivity by obtaining the running speed of the unwound strip with the number of revolution of the mandrel and the radium, obtaining the remaining turns of the coil with the plate thickness of strip and controlling the unwinding speed of the coil. CONSTITUTION:The linear sensor measures the radius (r) of the mandrel 2 continuously. And the remaining turns of the coil x, (v/2piN-r) is obtained with the running speed v of the unwound strip, the number of revolution of the mandrel 2 N, the radium of mandrel (r) and the plate thickness of the strip (t). Based on the obtained remaining turns of the coil, the controller 12 outputs the controlling signal I to the driving circuit 13 of the motor 7. Therefore, the starting time-point of the deceleration can be delayed to the utmost and the operation time of pinch roll can be also shortened as short as possible, and the productivity is improved.
Patent JP-H01178013-A (JP)
Title: Air supply system for heating cabinet
Inventor: KAWAMURA HIDEO
IPC: B60H1/32
Filed: 1987-12-30
Abstract: PURPOSE:To keep a thermal insulation condition within a heating cabinet by blowing a hot air from one of a plurality of hot air outlets and causing the other outlet to draw the hot air when a door is opened, and blowing a hot air from both hot air outlets when the door is closed. CONSTITUTION:A hot air generation device comprising a combustor 1, a heat exchanger 2, an air blower 3 and the like is installed between the front wheels 13 and rear wheels 14 of a vehicle. A plurality of air ducts 6 are respectively provided at the downstream of the heat exchanger 2 for the supply of a hot air to the inside of a heating cabinet 10. Furthermore, each air duct 6 is made continuous to a plurality of hot air outlets 12 and 20 formed on both side walls of the heating cabinet 10 and both rear side walls. In this case, a plurality of air ducts 26 and 28 are formed with an inner panel 19 and an outer panel on both rear side walls. On the other hand, the heating cabinet 10 is fitted with a door switch 18 for sensing the opening and closing of a door 7. And, for example. when the door 7 is opened, a hot air is blown from one of the air ducts 26 and 28 and drawn by the other air duct, thereby forming an air curtain.