baber/WOPTO huggingface dataset:
Patent JP-H07221625-A (JP)
Title: Buffer circuit
Inventor: TOYOKURA MAKI
IPC: H03K19/0175
Filed: 1994-02-08
Abstract: PURPOSE:To reduce the through current by limiting a current made flow between the drains of a pair of transistors for driving whose polarities are mutually different by a current limiting means. CONSTITUTION:The current limiting means 100 limits the current made flow between the drain of a first P-channel transistor 101 and the drain of a first N-channel transistor 104. Thus, a potential difference is generated between the gate of a second P-channel transistor 102 connected to the drain of the first P-channel transistor 101 and the gate of a second N-channel transistor 105 connected to the drain of the first N-channel transistor 104. Thus, by shifting the driving timings of the second P-channel transistor 102 and the second N- channel transistor 105 as the transistors for output, the time when both second P-channel transistor 102 and second N-channel transistor 105 are turned to an on state is shortened.
Patent JP-S54106591-A (JP)
Title: Building material for indoor-use utilizing humidity- controlling activity of wooden substrate
Inventor: YAMAMOTO YASUKAZU
IPC: E04C2/24
Filed: 1978-02-09
Abstract: PURPOSE: To provide a building material for indoor-use having improved inhabitability utilizing the himidity-controlling activity of a wooden substrate, by applying a synthetic resin layer having a number of moisture-permeable and water-inpermeable microscopic holes to the upper surface of a wooden substrate.  
     CONSTITUTION: A decorative paper 4 is pasted to the surface of a wooden substrate 1 by an adhesive layer 3. The surface of the decorative paper 4 is coated with an aminoalkyd resin paint to form a synthetic resin layer 2. The synthetic resin layer 2, the decorative paper 4, and the adhesive layer 3, are provided with a number of microscopic holes 5, pref. having diameters of several to 100 microns. The hole is permeable to moisture while it is a barrier to water, and it should at least reach the wooden substrate, and may pierce through the substrate. The hole can be produced by pressing the surface with a plate having a number of sharp needles, or by electrical discharge, laser processing, etc. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H07222286-A (JP)
Title: Ultrasonic vibrator
Inventor: MATSUNAKA TOSHIYUKI
IPC: G01N29/24
Filed: 1994-02-08
Abstract: PURPOSE:To provide the miniaturized ultrasonic vibrator for producing ultrasonic beams in multiple directions by providing a surface acoustic wave(SAW) electrode for generating SAW in one direction and a planar electrode for generating vertical SAW. CONSTITUTION:A SAW electrode 14 is provided on one side of a piezoelectric material 12, and the SAW is generated in one direction on one side. On the other hand, a planar electrode 16 is provided on the other side of the piezoelectric material 12, and the vertical SAW is generated from the surface of the piezoelectric material 12 together with the SAW electrode 14. Therefore, the ultrasonic beam required for providing the Doppler information on a specimen can be generated by the SAW electrode 14, and the ultrasonic beam required for providing the tomographic information of the reagent can be generated by impressing a voltage across the planar electrode 16 and the SAW electrode 14. Thus, since the SAW electrode 14 is used for both the purposes, the ultrasonic vibrator, namely, an ultrasonic probe can be miniaturized.
Patent JP-S54107938-A (JP)
Title: Drum coating and its device
Inventor: YAGISHITA AKIO
IPC: B05C5/02
Filed: 1978-02-10
Abstract: PURPOSE: To form a photosensitive material film having excellent smoothness, by coating a drum with coating materials having a viscosity gradient continuously.  
     CONSTITUTION: The interior of a coating chamber is saturated with a vapor of the same solvent as used in a photosensitive material solution. A high-viscosity photosensitive material solution with a low solvent content is fed from one of the cylinders 3 and 3a to the coating blade 4 and applied to the drum 1 preliminarily rotated at a small solution feed several times in layers. A low viscosity photosensitive material solution is then fed from another cylinder to the coating blade 4 and applied to the drum 1. At the desired film thickness, the solution feed is stopped. The  coating blade 4 is separated from the film and the photosensitive material solution remaining between the blade 4 and the film is sucked and recovered by the blade 4 to give the coated drum 1. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-2000214436-A (JP)
Title: Liquid crystal display unit
Inventor: YONEMURA MASARU
IPC: G02F1/133
Filed: 1999-01-22
Abstract: PROBLEM TO BE SOLVED: To provide a liquid crystal display unit with backlight reduced in power consumption by transducing the light of the light source of the backlight into electric power, and making use of the electric power for the circuit part in the display unit. SOLUTION: The liquid crystal display unit 10 is provided with solar cell modules 28 on the back of a light source cover 24 formed in the upper part of the backlight 14, and has such configuration as the electric power transduced by the solar cell modules 28 is supplied to an electric circuit. In such a manner, since a part of the light irradiated from a fluorescent tube 26 is converted into the electric power by solar cell modules 28 and further supplied to the electric circuit, the electric power necessary for the electric circuit operation is supplemented, and the power consumption falls.
Patent JP-H04242485-A (JP)
Title: Object recognizing device
Inventor: HASHIMOTO MANABU
IPC: G06T1/00
Filed: 1991-01-16
Abstract: PURPOSE:To recognize an image of an object having a large level difference with no occurrence of an out-of-focus state. CONSTITUTION:The edge extracting means 131 and 132 are provided to extract the edge parts out of plural image signals obtained by the cameras 121 and 122. The segment description generating means 141 and 142 describe the extracted edge date as plural assemblies of segments. Then a description data synthesizing means 15 synthesizes the in-focus segment description data. Thus all generated segment description data are kept in focus.
Patent JP-H02196146-A (JP)
Title: Speed limiter for vehicle
Inventor: KURITA HIROAKI
IPC: F02B75/02
Filed: 1989-01-26
Abstract: PURPOSE:To prevent any sudden variation in engine power by installing an exhaust control valve in an exhaust system, and controlling it in response to engine speed on the basis of a control characteristic prestored of opening of the valve, while making the engine power so as to be limited by closing the exhaust control valve at more than specified car speed. CONSTITUTION:An exhaust control valve 2 for controlling exhaust timing is attached to the upper edge of an exhaust port of a two-cycle engine 1, and this valve 2 is opened or closed within the specified opening range by a stepping motor 3 being controlled by a control means 4. In brief, the exhaust control valve 2 is opened or closed by this control means 4 in accordance with a control characteristic prestored in a conductor memory in response to engine speed being detected by an engine speed detector 5. In addition, an ignition circuit 6 is controlled by the control means 4, making it perform ignition timing control, and when such a fact that a car speed discriminating means 42 such as speedometer or the like is more than the specified car speed is discriminated, the exhaust control valve 2 is forcedly closed and thereby engine power is made so as to be reduced.
Patent JP-H03220609-A (JP)
Title: Option card holding mechanism
Inventor: NOBUCHI ATSUNOBU
IPC: G06F1/16
Filed: 1990-01-26
Abstract: PURPOSE:To easily attach and detach an option card to reduce the cost by forming a base part, a hinge part, and a turning part into one body and attaching them to the frame body of a CPU main body device with one operation by the claw part of the base part and turning only the turning part to the base part. CONSTITUTION:A box-shaped base part 16 has a claw part 16a formed in the side face rear end part as one body and is unified with a frame main body 1. This base part 16 is formed together with a turning part 18 and a hinge part 20 into one body by injection molding of polypropyrene, and the claw part 16a is elastic and can be inserted to and engaged with the engaging hole of the frame 14 with one operation. The turning part 18 which can be turned to the base part 16 is turned between positions A and B with the hinge part 20 as the center, and the turning part 18 is turned to the position B to hold an option card 30 and is turned to the position A to release the option card 30. Thus, the option card is easily attached and detached to reduce the cost.
Patent JP-S54107659-A (JP)
Title: Crystal oscillator
Inventor: SAKAMOTO KAZUO
IPC: H03B5/32
Filed: 1978-02-13
Abstract: PURPOSE: To improve the thermal noise for the part apart from the oscillation frequency, by picking up the oscillation output from the crystal oscillator used to determine the oscillation frequency through the transmission of the oscillation output, in a crystal oscillator.  
     CONSTITUTION: The oscillation circuit is constituted that the output of the amplifier 10 is passed through the crystal oscillator 6, it is divided with the resistors 17 and 18, and is positive-fed back to the input of the amplifier 10 through the parallel resonant circuit consisting of the variable capacitor 19 and the coil 20 and the phase compensation capacitor 7. Since the output of the oscillation circuit is outputted through the oscillator 6, the thermal noise near the oscillation frequency is improved with the steep phase performance of the crystal oscillator 6 and that at the part apart from the oscillation frequency is by the band pass filter performance from the input and the output terminal 12 of the amplifier 10. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H06232505-A (JP)
Title: Stem for optical element array
Inventor: KANEKO SATOSHI
IPC: H01L31/02
Filed: 1993-02-02
Abstract: PURPOSE:To obtain a stem for an optical element array which can be used widely and also can be reused after the optical array has been removed by a method wherein the base of a stem is used as the common electrode for each channel, and a wiring board, which is electrically separated from the common electrode, is fixed to the base. CONSTITUTION:A semiconductor laser 5 is fixed to a submount 7 and electrically connected to the electrode of a junction plate 6. Then, the submount 7 is fixed to a base 1 with vertical stem. At this time, a groove 9 is provided to prevent the solder from coming into contact with the electrode pattern 3 formed on a wiring 2. Then, the junction plate 6 and the electrode pattern 3 are electrically connected by a wiring wire 8. As a result, the semiconductor laser array 5 and the electrode pattern 3 and a lead terminal 4, which was electrically connected in advance, can be electrically connected. On the other hand, the base 1 and the backside electrode of the semiconductor array 5 are electrically connected through the submount 7, and the base 1 functions as the common electrode of each channel of the semiconductor laser array 5.
Patent JP-S55107338-A (JP)
Title: Sweep oscillator having phase synchronization loop
Inventor: FUJIWARA TERUHIRO
IPC: H03L7/16
Filed: 1979-02-13
Abstract: PURPOSE:To make stable the oscillation frequency of sweep generator, by the phase synchronization of an aribitrary oscillation frequency in the sweep frequency of the sweep oscillator of voltage control type to the frequency of high stabilization such as crystal oscillator. CONSTITUTION:The phase synchronization loop consists of the voltage controlled sweep oscillator 1, amplifier 2, divider 4, phase comparison circuit 6, LPF7, and adder 8. When the oscillator 1 is swept with the saw tooth waves of sweep period t, the frequency is swept from f1-f2 and the frequency is f1 and is constant at the next blank period (repetitive period T-sweep time t). Phase synchronization is made at the oscillation frequency range narrower in the capture range at the blank period, and at the sweep period t, sweeping is made from the frequency f1 in phase synchronization by the band width given at the sweep control circuit 12. The frequency of leading of sweep signal is made stable with the reference oscillator 5 made of highly stable crystal oscillator.
Patent JP-H03219663-A (JP)
Title: Lead frame for semiconductor device
Inventor: OGUCHI KATSUHIKO
IPC: H01L21/60
Filed: 1990-01-25
Abstract: PURPOSE:To increase the wire bonding point of an inner lead and to prevent a malfunction of removal of the wire from the lead by so providing two or more rows of positions of the points of the leads that distances from the outer periphery of a die pad are alternately different. CONSTITUTION:The positions of wire bonding points 9 are so disposed that distances from the outer periphery of a die pad 2 are alternately different. Since the adjacent points are far from one another, the width of the point 9 of an inner lead 1a can be increased, and a wire bonding can be stably conducted. The improvement in the stability of the thus obtained bonding causes improvements in the assembling yield of a semiconductor device and in quality, reliability of a multipin semiconductor device.
Patent JP-S55111359-A (JP)
Title: Detector
Inventor: BANDOU TOSHIROU
IPC: B65H7/14
Filed: 1979-02-13
Abstract: PURPOSE: To prevent an optical detector from being affected by disturbance, by setting flip-flop circuits when both of a pulse light emission signal and a light reception signal are present and by resetting the flip-flop circuits when only the pulse light emission signal is present.  
     CONSTITUTION: A pulse oscillation circuit comprises NAND gates N1WN3. An LED is caused to emit light, through a transistor Tr. The light is reflected by a detected object P and then introduced into a photodiode PD, the electric output of which is amplified by an operational amplifier. The amplified output is applied to a NAND gate N4 through said one N3. A pulse oscillation output is also applied to the NAND gate N4. When the pulse oscillation output 1 coincides with the output of the NAND gate N3, flip-flop circuits N6, N7 are set to produce an output 6. When a light reception signal 4 is not resent, the flip-flop circuits are reset not to produce the output 6. This results in suppressing the influence of disturbance and providing a quick responding property. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S54108132-A (JP)
Title: Carburetor
Inventor: KATOU YOSHIROU
IPC: F02M17/38
Filed: 1978-02-15
Abstract: PURPOSE: To prevent over heating of catalyzer converter, by installing fuel cut off means to cut off the supply of fuel in the main system at decreasing time by operating of decreasing speed detecting means and the fuel in the slow system.  
     CONSTITUTION: When shaft torque of the engine is negative, the opening of the throttle valve 5 is less than the prescribed value, the engine speed is maintained more than the prescribed value. Therefore a computer 28 connectes the coil 30 of the solenoid valve 29 to D.C. power source 31, the valve 35 is pulled towards the coil 30, the ports 36, 37 are connected. Thus, atmospheric pressure is supplied to the path 10 or 19 through the path 38 or 39. Thereby, the negative pressure in the main nozzle 9 and slow port 18 becomes small to decrease the fuel injection, the fuel supply from the main nozzle 9 and the slow port 18 to the suction path 2 is stopped, the inside of the combustion chamber during retardation is filled with air, overheating of catalyzer converter can be prevented. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S59141575-A (JP)
Title: Preparation of lignan
Inventor: TAKEYA TETSUYA
IPC: C07D307/92
Filed: 1983-02-03
Abstract: PURPOSE:To obtain a lignan in high yield in two stages, by oxidizing a phenylpropene with an oxidizing composition prepared by dissolving chromic acid anhydride in a strong acid and a specific organic solvent in the above-mentioned organic solvent, and reacting the resultant product with trifluoroacetic acid. CONSTITUTION:A compound of formula I (R1-R5 are H or electron donative group such as halogen, lower alkoxyl, benzyloxy, NH2, etc.; two thereof together form methylenedioxy or ethylenedioxy group; at least one of the o-positions with respect to the side chain on the benzene ring is H) is oxidized with an oxidizing composition prepared by dissolving chromic acid anhydride in a strong acid and one or more organic solvents selected from acetonitrile, propionitrile, butyronitrile and nitromethane in the above-mentioned organic solvents, and the resultant product is then reacted with trifluoroacetic acid to give the aimed compound useful as an antitumor agent, etc. advantageously by easy operation.
Patent JP-S62172208-A (JP)
Title: Method for optically measuring shape
Inventor: KIYONO SATOSHI
IPC: G01B11/24
Filed: 1986-01-27
Abstract: PURPOSE:To make it possible to accurately measure the shape of a surface to be measured within a short time, by a method wherein spot light is obliquely projected to the surface to be measured and the reflected light from said surface to be measured is received by a light receiving element divided into a plurality of sections and a plurality of the outputs from the divided sections are combined. CONSTITUTION:The spot light 3 obliquely projected to a surface 1 to be measured at an incident angle alpha from a floodlight projector 2 is obliquely reflected from the surface 1 and this reflected light 4 is received by a light receiver 5. This light receiver 5 is constituted of four light receiving elements 7a-7d divided by X- and Y-axis lines intersecting at the center of a light receiving surface 6. Then, if the sum of the outputs of the elements 7a, 7b receiving the reflected light 4 and the sum of the outputs of the elements 7c, 7d receiving said reflected lights 4 are taken out and the difference therebetween is calculated, the calcu lated value is proportional to the angle theta around the X-axis on the surface 1. The X-axis of the elements 7 is present on the optical axis surface constituted of lights 3, 4 but, by arranging the optical axis surface constituted of the lights 3, 4 along the direction of the y-axis of the surface 1, the angle psi around the y-axis of the surface 1 is calculated and, by subtracting the angle psi from the difference between the outputs of the elements 7a, 7c and the outputs of the elements 7b, 7d, the displacement in a z-axis direction is calculated.
Patent JP-H10211168-A (JP)
Title: Light source device for endoscope
Inventor: KOBAYASHI YUKIMINE
IPC: G02B23/24
Filed: 1997-01-29
Abstract: PROBLEM TO BE SOLVED: To provide a light source device for an endoscope reducing the number of components, etc., by separately wiring a first power source line, a second power source line and a signal line without using a double coated wire or an insulated tube. SOLUTION: A power source switch 40, a lamp house 22 incorporating a lamp 18, etc., and an air sending pump 23 are arranged on the left side of a power source device 3 from a front side and an operation panel 16, a control substrate 24, a switching power source 25, a noise filter 26, etc., are arranged on the right side of the device 3 from the front side. A groove part 35 projecting to a lower side is provided in the neighborhood from an air sending pump 23 to the switch 40 at a bottom plate 34 to put through the first power source to separately wire without contact or approach with/to the second power source line and the signal line.
Patent JP-H05210525-A (JP)
Title: Shared exclusive control method
Inventor: FUKUYA TSUNEO
IPC: G06F12/00
Filed: 1992-01-31
Abstract: PURPOSE:To use no external storage device and to provide the shared exclusive control method which is efficient. CONSTITUTION:This method is equipped with plural tasks 1, a memory 2 having an inter-task shared area that the tasks 1 refer to and update in common, an inter-task communication part 3 which receives messages from the tasks 1 and waits for the 2nd and succeeding messages to be received, and an execution control part 4 which performs execution control over the operations of the memory 2, tasks 1, and inter-task communication part 3. The tasks 1 when referring to and updating the inter-task shared area in the memory 2 individually sends messages addressed to themselves to the inter-task communication part 3 and perform referring and updating processes when they are accepted. After the referring and updating processes, the messages addressed to themselves are received from the inter-task communication part 3, which is put back into a receivable state for a new message, thereby preventing the tasks 1 from referring to and updating the inter-task shared area at the same time.
Patent JP-H03220823-A (JP)
Title: Direct conversion receiver
Inventor: NOZU YUICHI
IPC: H04B1/16
Filed: 1990-01-25
Abstract: PURPOSE:To effectively block saturation relating to the amplification of a post-stage low frequency amplifier circuit with simple circuit constitution by extracting a DC voltage component from a demodulation signal led out from a mixer, feeding back the DC voltage component to the mixer or the like to suppress the DC voltage offset in the demodulation signal. CONSTITUTION:This receiver is roughly constituted of a high frequency amplifier circuit A amplifying a supplied reception signal Se, a demodulation section B receiving an amplified reception signal Sf coming from the circuit A and outputting demodulation signals Sq, Si and a closed loop control section C extracting the DC voltage component in the demodulation signals Sq, Si, feeding it back to the demodulation section B to suppress the DC voltage offset in the demodulation signals Sq, Si. The demodulation signals Sq, Si are fed to A/D converters 32a, 32b, where the signals are digitized and the result is inputted to a data processing circuit 34, in which the closed loop control feeding back control voltages Cva, Cvb to suppress the DC voltage offset of mixers 14a, 14b via D/A converters 33a, 33b while discriminating the digital signal train from a specific digital signal is implemented and a demodulation output signal So is led out.
Patent JP-H04237719-A (JP)
Title: Banking structure with tree in fill-up ground protected
Inventor: SUGA KUNIYOSHI
IPC: E02D17/18
Filed: 1991-01-16
Abstract: PURPOSE:To reduce soil pressure, water pressure, over-applied load, and seismic force due to a banking by grading a natural ground while trees are reserved, and thereby preparing a housing site even on a ground with any slope. CONSTITUTION:A lightweight banking material 1 consisting of foaming polystyrene etc., is inserted or laid in/on the surface of a natural ground G, when trees grown on the ground on which filling-up is to be made are protected by covering with a protecting means 3 such as a protection circle with a certain space held from the surfaces of the trees. Thereby the filling-up does not hinder respiration of the trunk and twigs and leaves of a naturally grown tree, which can thus be reserved without risk of withering, Also the whole banking is lightened to contribute to reduction of the soil pressure, water pressure, over- applied load, and seismic force due to the banking.