baber/WOPTO huggingface dataset:
Patent JP-2000172223-A (JP)
Title: Driving method and driving device for plasma display panel
Inventor: SHIMIZU MASAHIRO
IPC: G09G3/296
Filed: 1999-08-18
Abstract: PROBLEM TO BE SOLVED: To faithfully display gradation of display data regardless of the magnitude of displaying load amounts by varying a time from the point of time when a sustaining pulse starts the recovering of electric charges till it is to be fixed to a sustaining potential and a time from it is fixed to the sustaining potential till it is to be fixed to a ground potential. SOLUTION: A time T from the point of time when a sustaining pulse starts the recovering of electric charges till it is to be fixed to a sustaining potential and a time T from it is fixed to the sustaining potential till it is to be fixed to a ground potential are varied. That is, times from the start of the recovering of electric charges till the sustaining pulse is to be fixed to the sustaining potential and the GRD potential are set into plural times (ta1 ≠ta2 ≠ ta3 ≠ tb1 ≠ tb2 ≠ tb3) in a sustaining period.  When the light emitting load amount of a PDP is small and light emissions are performed collectively, luminance saturations to be generated collectively in display areas having small driving powers are prevented and, moreover, when the light emitting load is large, light emissions are controlled so that the luminance of light emissions does not become short by varying the timing when the sustaining pulse is to be clamped to the sustaining potential or the GRD potential, Thus, a satisfactory display having no luminance saturation can be always obtained without depending on displaying load amounts.
Patent JP-S61110075-A (JP)
Title: Underwater target detector
Inventor: ISHII YASUYOSHI
IPC: G01S3/86
Filed: 1984-11-02
Abstract: PURPOSE:To enable the setting of the threshold in the checking for a target irrelevant to the level of undersea noise, by obtaining correlation between output signals of more than one receivers spaced at a specified interval. CONSTITUTION:Since outputs of a pair of receivers arranged at a specified interval are regarded as almost isotropic noise when only undersea noise exists, the correlation between two signals is very limited a the interval between receivers 1 and 2 exceeds lambda0/2. When a sound wave from a target arrives, signals from one sound source are received with the receivers 1 and 2 and the correlation between two signals takes a value, which changes depending on the incoming direction theta of the sound wave. Therefore, when the output of a correlation circuit 5 is inputted into a threshold circuit 6 and the correlation output exceeds the threshold, a target detection signal is outputted from the circuit 6. As the correlation of the undersea noise is very limited, it suffices to set the threshold of the circuit 6 at a value close to zero. This enables the setting thereof irrelevant to the level of the undersea noise thereby achieving higher reliability.
Patent JP-S6289883-A (JP)
Title: Corrosion inhibitor for copper
Inventor: YAMAKAWA KOJI
IPC: C23F11/167
Filed: 1985-10-16
Abstract: PURPOSE:To inhibit the formation of an oxide film on the surface of copper and to prevent the heat conductivity of copper from lowering and the cooling effect from weakening by adding hydrazine to phytic acid or phytates. CONSTITUTION:Hydrazine is added to phytic acid or phytates, they are further added to a refrigerant, and the refrigerant contg. the compounds is hermetically sealed in a cooling vessel made of copper. Though a vary oxide film is formed on the inner surface of the copper by the phytic acid or phytates, the thickness of the film is extremely reduced by the deoxidizing action of the hydrazine and the growth of the film is inhibited. Accordingly, the heat conductivity of the copper is prevented from lowering and the cooling effect is also prevented from weakening.
Patent JP-H1171882-A (JP)
Title: Structure for installing plate
Inventor: TOMIUCHI SHINICHI
IPC: E04F13/26
Filed: 1997-08-28
Abstract: PROBLEM TO BE SOLVED: To provide a structure for installing plates capable of keeping the strength of an engaging parts high without impairing appearance, while ensuring waterproofness. SOLUTION: In a structure for installing plates, engaging parts 12 are provided at the respective ends of upper and lower plates 1, and a metal fitting 5 is interposed between the engaging parts 12 to install the plates 1. A rib 9 which projects along the overall length of the upper surface of the lower plate 1a is provided in front of the metal fitting 5, and a recess 10 is provided in the lower surface of the upper plate 1b to match the rib 9.
Patent JP-H0954248-A (JP)
Title: Medium telescopic lens
Inventor: OSHITA KOICHI
IPC: G02B13/02
Filed: 1995-08-17
Abstract: PROBLEM TO BE SOLVED: To suppress the generation of astigmatic aberration and distortion aberration, to excellently compensate spherical aberration and making a lens a wide angle by composing the lens of two-group three-lenses and satisfying a specified condition. SOLUTION: This lens is provided, in order from the object side, with a positive lens component L12 joined to a meniscus lens composed of a combined lens of a biconvex lens L1 and a biconcave lens L2 and whose convex surface faces the object side and a negative meniscus lens component L3 whose convex surface faces the image side and satisfys the conditions shown by relations I-VIII.  In the relations I-VIII, f: the focal distance of a whole system, r1: the radius of curvature of the surface on the object side of the biconvex lens L1, r3: the radius of curvature of the surface on the image side of the biconcave lens L2, r4: the radius of curvature of the surface on the object side of the lens component L3, r5: the radius of curvature of the surface on the image side of L3, d3: an air gap between the lens components L2 and L3, d4: the on-axis thickness of the lens component L3, n1: the refractive index of L1 for d-line, n2: the refractive index of L2 for d-line and i1-i3: the Abbe numbers of the lenses L1, L2, L3, respectively.
Patent JP-S6386212-A (JP)
Inventor: YORITA MITSUMASA
IPC: H01H33/66
Filed: 1986-09-29
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-H0574299-A (JP)
Title: Self-hold circuit
Inventor: YOMO MASAMI
IPC: H01H47/04
Filed: 1991-09-12
Abstract: PURPOSE:To prevent the occurrence of erroneous operations due to mechanical impacts or electrical noises in the self-hold circuit. CONSTITUTION:An operation coil MR2 having an ON delay function is provided in addition to an operation coil MR1 interlocked with a contact for starting a load such as a motor. An exciting current is supplied to each of MR1 and MR2 via a circuit composed of a serial connection between a contact C1 interlocked with MR1 and a contact C2 interlocked with MR2. By this, the circuit is not kept in operation hold condition unless the operation coil MR2 continues to be energized for a specified, or more than the specified time period.
Patent JP-2000065008-A (JP)
Title: Expansion and contraction controller for multi-step cylinder device
Inventor: MATSUURA TOMONARI
IPC: F15B11/04
Filed: 1998-08-19
Abstract: PROBLEM TO BE SOLVED: To provide an expansion and contraction control device for multi-step cylinder device wherein the expansion and contraction are performed smoothly and quickly at a desirable speed. SOLUTION: A variable priority valve device 20 provided with an oil feeding and discharging pipe 15 to a multi-step cylinder device 9 has two-position control valve 21 and a throttle 22. When the pressure between the two-position control valve 21 and the throttle 22 is high, the two-position control valve 21 is communicated with the oil feeding and discharging pipe 15 and an oil discharging pipe 16a. The quantity for supplying to the oil feeding and discharging pipe 15 is reduced to expand a next of the multi-step cylinder device 9 at a reduced low speed. An expansion side valve means 24 is provided to throttle the throttle valve 22 when the multi-step cylinder device 9 up to a set length.  A contraction side valve means 28 is provided to communicate the oil feeding and discharging pipe 15 with the oil discharging pipe 16a when the multi-step cylinder device 9 contracts to the set length. At a result, the oil feeding and discharging pipe 15 is opened for increasing the discharging flow rate.
Patent JP-S6387004-A (JP)
Title: Voltage controlled oscillator
Inventor: UEDA TOSHITSUGU
IPC: H03B5/32
Filed: 1986-09-30
Abstract: PURPOSE:To ensure stable oscillations over a wide range of frequencies by forming in a body a pair of crystal vibrators that perform flectional vibrations on a piezoelectric substrate having a common frame part and impressing the control voltage to the control electrode of the frame part. CONSTITUTION:The crystal vibrators CR1 ana CR2 which have flectional vibrations are formed in a body at a common frame part FLM consisting of a piezoelectric substrate. The voltage is impressed to both vibrators CR1 and CR2 from exciting electrodes M11 and M12 to produce flectional vibrations. At the same time, a modulation signal Vm is produced from a control circuit CON and distortions are given to the vibrators CR1 and CR2 from control electrodes M21 and M22. Thus the natural oscillations of both vibrators are changed by the distortion proportional to the control voltage. Thus it is possible to vibrate stable frequencies over a wide range.
Patent JP-H0282410-A (JP)
Title: Conductive material
Inventor: TSUKISHIRO TOSHIO
IPC: H01B5/00
Filed: 1988-09-19
Abstract: PURPOSE:To make an effective and concentrated processing possible in order to obtain a multifunction with high performance, by forming a conductive layer through a processing of enclosing the periphery of a flow passage of an electric current by a basic material or a processing of clipping the flow passage by basic materials facing each other. CONSTITUTION:A conductive layer 1 or 2 to be a flow passage of an electric current is formed by enclosing it with a basic material, or by making the basic materials to face each other, otherwise forming a bore in the base material. Namely, the conduc tive layer 1 or 2 can be easily produced by winding or laminating a plate-like basic material, or by tying up wire-like basic materials. This conductive layer 1 or 2 as a direct target is treated and processed so as to have some electric characteristic added thereto by selecting the basic material, adding substance, utilizing a mechanical and a physical-chemical processings. Thereby an electric current does not flow through the substance but flowes on the conductive layer 1 or 2, and is not impeded by such as impurities, a grain broundary, discontinuity of wire, crystalline turbulence in the substance, as well as difficult points inherent in other substances. Whereby a concen trated and effective processing is made possible only to the conductive layer as a target.
Patent JP-H0983906-A (JP)
Title: Power source circuit for television receiver
Inventor: SUZUKI KEIJI
IPC: H04N3/18
Filed: 1995-09-11
Abstract: PROBLEM TO BE SOLVED: To prevent an inrush current through a main transistor when starting a power source circuit. SOLUTION: A transistor 3 for a constant voltage output and a by-pass resistor 4 are parallely connected to the output of the rectifier circuit 2 of a power source part 1, and a voltage control circuit 6, the horizontal oscillation circuit 7 of a deflection circuit and a flyback transformer 8 are connected to the output of the transistor 3. The output of the voltage control circuit 6 is connected to the base side of the transistor 3, and an output voltage equal to the operation voltage level of the transistor 3 among the low-voltage-side output of the flyback transformer 8 is connected to the base side of the transistor 3. Thus the output of the rectifier circuit 2 is given to the horizontal oscillation circuit 7 through the by-pass resistor 4 at the time of supplying power and the flyback transformer 8 is boosted along the oscillation start of this horizontal oscillation circuit 7.  Then after the low-voltage output of this flyback transformer 8 is supplied to the base side of the transistor 3, the output of the voltage control circuit 6 is introduced to the base side of the transistor 3.
Patent JP-S59120784-A (JP)
Title: Shaft seal of hydraulic machinery
Inventor: KAKO TAKUYA
IPC: F03B11/00
Filed: 1982-12-27
Abstract: PURPOSE:To prevent the abrasion of the slidable surface of a shaft seal due to soil and sand by installing a mechanism for sealing the low-pressure side in accordance wit the pressure difference between before and behind a packing, onto the high-pressure side of shaft-sealed fluid, and forming a flow passage for introducing outside the fluid in said shaft seal mechanism. CONSTITUTION:Each packing 14c has a circular-arc form, and when assembled, said packings form a ring-shaped packing which surrounds the outer peripheral part of a main shaft. Each packing 14c has an upward stepped part at one edge and a downward stepped part at the other edge, and when the edge parts of each packing are superposed and joined, a minute gap (g) is formed in the circumferential direction between the edges on the lower stepped side. A girter spring 16 is installed onto the outer periphery of the packing 14c.
Patent JP-H0871905-A (JP)
Title: Both side surfaces copying belt sander
Inventor: NAKANO YUKIYASU
IPC: B24B21/12
Filed: 1994-08-31
Abstract: PURPOSE: To provide the structure of a copying belt sander by which both side surfaces of a workpiece having an inclined shape, a wavy shape, etc., can be uniformly ground polished. CONSTITUTION: Advancing/backing cylinders 10 which control to convert rolls either in an energizing position and in an evacuated position, are linked to contact rolls 5, 5, side surface polishing heads 3a, 3b which make tension rolls 7 being in conact with the inner surfaces of endless polishing belts 4, to energize outward by energizing cylinders 15, are arranged on both sides of a material feeding passage 2 by opposing respective contact rolls 5, 5 to each other, and a detecing switch to detect the tip end of the workpiece is arranged in the upper stream position of the workpiece than a pair of contact rolls 5, 5.  A both side surfaces copying belt sander is provided with a timing control means by which respective advancing/backing cylinders 10 are operated when the tip end of the workpiece comes in the position of the pair of contact rolls 5, 5 based on the detection of the tip end of the workpiece by the detecting switch, so that the pair of contact rolls 5, 5 are placed in the energizing position.
Patent JP-S6384995-A (JP)
Inventor: TSUJIMOTO MASARU
IPC: B43K7/02
Filed: 1986-09-29
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-H0647732-A (JP)
Title: Method for controlling rotary blade of stone cutting machine
Inventor: MIYAJI KENJI
IPC: B23D59/00
Filed: 1992-07-15
Abstract: PURPOSE:To enable labor-saving, efficient cutting of stone by conducting dressing when the cutting performance of a rotary blade is lowered during automatic cutting and controlling the dressing to cut the stone with relatively small depth of cut and low feed speed. CONSTITUTION:During automatic cutting of stone W, the current of a main shaft motor 7 is continuously detected so that the depth of cut and feed speed of a rotary blade 8 can be controlled corresponding to the current. When the current of the main shaft motor 7 exceeds a given value, the dressing of the rotary blade 8 is started automatically. When the current is lowered below the given value, the dressing is stopped automatically so that the rotary blade 8 is controlled automatically to conduct ordinary cutting operation. The dressing is carried out to cut the stone W with relatively small depth of cut and feed speed.
Patent JP-H0283171-A (JP)
Title: Grooved lapping material
Inventor: FURUKAWA TADAO
IPC: B24B37/16
Filed: 1988-09-19
Abstract: PURPOSE:To prevent the generation of linking by arranging a linking preventing device communicating with the outside air on the surface. CONSTITUTION:A linking preventing groove 2 is provided on the surface of a lapping material 1. Moreover an outside air groove 3 is provided and by this outside air groove 3 the linking preventing groove 2 is communicated with the outside air. As a result, a rubbing face is communicated with the outside air and the generation of linking can be prevented enough.
Patent JP-S59121229-A (JP)
Title: Manufacture of universal coupling
Inventor: KANBE YOSHIHIKO
IPC: F16D1/09
Filed: 1982-12-27
Abstract: PURPOSE:To contrive an improvement of a saving in process and yield in material, by a method wherein fork parts at the top and bottom and lug parts at the right and left are punched unitarily out of a plate for punching two at a time, a protrusion is pushed out on the lug part and reinforcement and tightening of the lug part are made reliable through processes of bending, drilling and machining. CONSTITUTION:A blank 6, on which lug components 7 provided respectively on both sides of a component 2 for two hubs vertically and continuously and two fork components 4 protruded vertically in a continued state are provided, is punched by pressing. Then bolt holes and under holes 8 of tightening seats are punched on the lug components 7, protrusions 9 ensuring tightening of bolts are formed on the opposite side of the bolt holes and the under holes 8, and the fork components 4 are bent into base end parts which become a fixed height from the hub component. Then a cold forging process is completed by molding the hub component 2 into a cylindrical shape after primary bending of the same and carrying out bending through which the lug components 7 are made to protrude in parallel with each other. Then a hinge holes 13 of a cross-shaped arm is drilled on a fork 10 and the inner circumference of a hub 11 is spline-processed, through which a product is completed.
Patent JP-S6386083-A (JP)
Title: Affine converting system
Inventor: ENAMI TAKAFUMI
IPC: G06T3/00
Filed: 1986-09-30
Abstract: PURPOSE:To decrease the number of times of multiplication necessary to affine conversion and to attain a highly speedy affine conversion by executing the affine conversion with an affine reverse converting circuit having a coefficient table divided into an (x) axis and a (y) axis. CONSTITUTION:An (x) coordinate counter 1 and a (y) coordinate counter 2, which are a coordinate axis counter, are provided. The affine reverse converting circuit 3 has a table concerning an (x) axis and a (y) axis, holds the affine reverse converted value, reads successively it in accordance with the counted value of the (x) and (y) counters 1 and 2 and reads an original image memory 4 storing the original image in accordance with the output.
Patent JP-H0655228-A (JP)
Title: Die equipment
Inventor: HONMA KENSAKU
IPC: B21D19/00
Filed: 1992-08-08
Abstract: PURPOSE:To provide a die equipment which can reduce dispersion of the collar heights of through holes having a collar which are formed in metallic sheets as much as possible. CONSTITUTION:In a die equipment, a through hole having a collar where the circumferential edge of the through hole is surrounded by the collar of the specified height at which tip the collar part is formed. The die equipment consists of an upper die set 10 and a lower die set 12 which are provided opposite to each other and at least one of them is provided in a vertically movable manner, and a lower die 64 which is provided on the lower die set 12 side and where the metallic sheet is loaded on the stage surface, and an upper die 62 which is provided on the upper die set 10. In addition, the die equipment consists of a pressing piece 66 which is arranged on the stage surface of the upper die 62, presses the collar part formed on the tip of the through hole having the collar in the metallic sheet loaded on the lower die 64, and stoppers 67, 68 which form a specified space between the stage surface of the upper die 62 and the stage surface of the lower die 64 when the upper die set 10 and the lower die set 12 are closed.
Patent JP-S6474735-A (JP)
Title: Manufacture of semiconductor device
Inventor: YAMAMOTO SHINICHI
IPC: H01L21/76
Filed: 1987-09-17
Abstract: PURPOSE:To fill up slits with insulating film flatly regardless of the groove width by a method wherein, after forming a fusible insulating film on overall surface and in openings, the first resist pattern is formed in a wide opening without heat-treatment and then the overall surface is coated with the second resist. CONSTITUTION:A fusible insulating film 150, e.g., borophospho silicate glass(BPSG), is deposited on overall surface and in openings. The first resist 160 is formed on wide goove width and then overall surface is coated with the second resist 170 to be flattened. Next, the second resist 170 is etched away until the insulating film 150 is exposed. Furthermore, the insulating film 150 is etched away until polycrystalline silicon 120 is exposed. When the insulating film 150 in the low softening point of the BPSG is heat-treated at 900 deg.C in N2 atmosphere, the eneven surface of the insulating film 150 inside the groove can be flattened by the fluidity of the insulating film 150. Furthermore, a slit 180 opened in a narrow width can be simultaneously filled up with the insulating film 150.
Patent JP-H04113337-A (JP)
Title: Optical bistable element
Inventor: KAWAMURA YUICHI
IPC: H03K3/36
Filed: 1990-09-03
Abstract: PURPOSE:To obtain the resonance tunnel type optical bistable element which can operate with low power by integrating a phototransistor which has a negative resistance characteristic at a part of its an emitter layer and also has at least >=1 quantum well layer and a semiconductor light emitting element. CONSTITUTION:Parts 2, 3, 4, and 5 of the bistable element constitute a phototransistor part which has an NDR characteristic and parts 6, 7, 8, and 9 constitute a light emitting element (laser) part. The composition of an InGaAlAs base layer 4 and an InGaAlAs collector layer 5 is so adjusted to make their band gap larger than the energy of the oscillation wavelength of a laser so that light from the laser is not absorbed. The bistable characteristic of the element depends basically upon the bistability between the light input and collector current of a phototransistor which has an MWQ emitter layer.
Patent JP-H0655447-A (JP)
Title: Engraving method for character and the like by masking sheet and sand blasting
Inventor: YAMASHITA SHINKICHI
IPC: B24C1/04
Filed: 1992-08-07
Abstract: PURPOSE:To finely engrave characters and the like on a plate by enabling a plloter to be used for cutting characters and the like into a masking sheet with means devised for employing such means as to provide a plastic layer easy to be cut open, an adhesive layer for the surface and the back surface of a valcanized rubber sheet and the like. CONSTITUTION:A plastic layer 2 and an adhesive layer 3 are provided for the surface and the back surface of a masking sheet main body 1 composed of valcanized rubber respectively, and concurrently a masking sheet A is so constituted that a separator 4 is temporarily attached to the adhesive layer 3. And when characters and the like are engraved on a stone and the like using the masking sheet A by means of sand blasting, the characters and the like are cut in the masking sheet main body 1 first by means of a plotter where a cutting edge is attached to a point. Next, the separator 4 is peeled off, and the masking sheet main body 1 is bonded on the engraving surface B of the stone and the like using the adhesive layer 3. And next, the characters and the like are cut out so as to be removed out of the masking sheet main body 1 along cutting lines (a), and sand blasting is carried out therein thereafter.