baber/WOPTO huggingface dataset:
Patent JP-H03102916-A (JP)
Title: Tone generating circuit
Inventor: KUBOTA KAZUYUKI
IPC: H03B28/00
Filed: 1989-09-18
Abstract: PURPOSE:To prevent production of a DC offset voltage and to maintain the symmetry of a symmetric waveform by providing a reference circuit setting the reference level of an output waveform outputted from an operational amplifier and an input circuit comprising a voltage division resistor or the like. CONSTITUTION:When a reference circuit 2 sets a reference level of an output waveform outputted from an operational amplifier section 1, switches 5 in an input circuit 3 are set all open. As a result, the production of a DC offset voltage is prevented without fluctuation of the reference level. Moreover, a voltage division from a voltage division resistor 4 is inputted to the amplifier section 1 via an input resistor 6 depending on the switching of the switches 5. That is, the voltage division by the resistor 6 in which the output waveform is generated at upper or lower side of the reference level depends on the resistance of the resistor 4. Then the symmetry of the symmetric waveform of a sinusoidal signal is not deteriorated even with the fluctuation of the power voltage divided. Thus, the production of a DC offset voltage is prevented and symmetrical waveform is always obtained regardless of the fluctuation of the applied voltage.
Patent JP-S60134538-A (JP)
Title: Information transmitting system
Inventor: HIROSE TSUGUHIRO
IPC: H04L27/00
Filed: 1983-12-22
Abstract: PURPOSE:To ensure detection of collision of carrier band signals by detecting independently the presence of a different frequency component corresponding to a different signal level of a base band signal or its coded signal to detect that plural frequency components exist at the same time. CONSTITUTION:Plural MODEMs 6 are connected to the network, BPF12, 15 are connected respectively to an FM modulator 11 and an FM demodulator 16 of each MODEM6, a transmission amplifier 13 is connected to the BPF12 and a reception amplifier 14 is connected to the BPF15. A collision detector 17 connected to a collision display signal generating circuit 18 is connected to the BPF15. The detector 17 is provided with BPF20, 21 inputting a signal from the BPF15, each signal level is extracted and envelope detectors 22, 23 detect the signal. The signal is fed to comparators 26, 27, compared with a reference signal from reference signal generators 24, 25, the frequency component to each signal level is detected independently, an output of the comparators 26, 27 is fed to an AND circuit 28 to detect surely the collision of the carrier band signals.
Patent JP-H08107402-A (JP)
Title: Data receiving circuit
Inventor: SUDA KAORU
IPC: H04L7/02
Filed: 1994-10-05
Abstract: PURPOSE: To provide a data receiving circuit with which the phases of a clock signal and received data can be matched only with simple hardware configuration. CONSTITUTION: A received signal 23 is latched by a flip flop 33 synchronously with a clock signal 12 and latched by a flip flop 31 synchronously with an inverted clock signal 12A, and those latched data are further latched by a flip flop 32 synchronously with the clock signal 12. On the other hand, a received clock generating circuit 22 generates a received clock 24 synchronized with the received signal 23. A phase comparator circuit 36 detects phase difference between the received clock 24 and the clock signal 12 and corresponding to that phase difference, the switching of a switching circuit 34 is controlled. When this detected phase difference is larger than a reference value, the switching circuit 34 selects latch data D1 of the flip flop 33 but when the phase difference is smaller, latch, data D2 of the flip flop 32 are selected and defined as received data 14.
Patent JP-2001064236-A (JP)
Title: Polyglycerol ester of fatty acid and composition comprising the same
Inventor: NAKAMURA TAKESHI
IPC: C07C69/33
Filed: 1999-08-27
Abstract: PROBLEM TO BE SOLVED: To obtain a surfactant excellent in performances and having high safety in food, cosmetic and industrial fields. SOLUTION: This surfactant comprises a polyglycerol represented by the formula: C3nH6n+2O2n+1 and having (n/2+1) 1,2-diols and/or 1,3-diols in all when (n) is an even number of >=4, ((n-1)/2+1) 1,2-diols and/or 1,3-diols in all when (n) is an odd number of >=5 and one hydroxyl group independent thereof gas a hydrophilic group.
Patent JP-H01108470-A (JP)
Title: Piston for axial piston machine
Inventor: HAINTSU BERUTORUTO
IPC: F01B3/00
Filed: 1988-09-28
Abstract: PURPOSE: To enhance the fixing properties of light material with a simple structure by arranging annular shoulder surfaces extending in the direction perpendicular to the axis and fixing the light material cast into an recess to the annular shoulder surface by tension. CONSTITUTION: A plurality of peripheral grooves 5 are arranged on the peripheral wall of a recess 2. Shoulder surfaces 6 spaced from and opposite to each other are arranged in the direction perpendicular to the axis of a piston 1. In this way, as the shoulder surfaces 6 are arranged in the position running substantially perpendicular to the axis, when the light material 4 cast or injected into the recess 2 is cooled, the light material 4 is automatically tensed fixedly with respect to the shoulder surfaces 6 of peripheral grooves 5, which are spaced from and opposite to each other. Thus, axial shape-fixed connection and radial friction-fixed connection are obtained by the fixing of the light material 4 on the piston 1.  Therefore, the piston 1 will not be loosened under scheduled load during work state, and it is possible to prevent generation of additional noise or functional problems.
Patent JP-2001061884-A (JP)
Title: Absorbent article with wing member and its manufacture
Inventor: SUEKANE MAKOTO
IPC: A61F13/472
Filed: 1999-08-27
Abstract: PROBLEM TO BE SOLVED: To surely join wing members to a body when forming the wing members from members separated from a top sheet. SOLUTION: An absorbing layer 12 is sandwiched between a back sheet 11 and a top sheet 10 to form a body 1A. Wing members 15 are sandwiched between the back sheet 11 and the top sheet 10 and joined thereto on both sides of the body 1A along the cross direction of the body 1A. The junction width 22 of the junction area between the top sheet 10 and each wing member 15 is longer than the junction width 21 of the junction area between the back sheet 11 and each wing member 15. The strength of junction between the body 1A and each wing member 15 can thus be increased.
Patent JP-H0583205-A (JP)
Title: Noise elimination device
Inventor: MATSUSHITA YOSHIHIRO
IPC: H04L29/08
Filed: 1991-09-20
Abstract: PURPOSE:To reduce noise of a digital signal. CONSTITUTION:The C/N of a received digital signal is measured by a C/N measurement device 4. When the measured C/N is lower than a predetermined value, the synchronization of an in-frame counter 12 is switched from external synchronization into internal synchronization, a frame synchronization pattern from a frame synchronization pattern generating section 7 is given in place of a frame synchronization pattern of the digital signal, a control code from a control code storage section 10 is given in place of the control code of the digital signal, and a fixed range bit from a range bit generating section 14 is given in place of a range bit of the digital signal.
Patent JP-H03102569-A (JP)
Title: Classifying method for screw or the like
Inventor: HARIGAYA TAKESHI
IPC: G06F19/00
Filed: 1989-09-18
Abstract: PURPOSE:To classify screws or the like by representing the shape of the head of the screw or the like by higher two digits of the code of three digits, and representing the shape of the thread of the screw or the like by lower one digit, and equalizing the code of lower one digit for the screw or the like different in the shape of the head and the same in the shape of the thread. CONSTITUTION:The higher two digits of the code of three digits represent the shape of the head A of the screw or the like, and the lower one digit of the code represents the shape of the thread part B of the screw or the like. The numeral of this lower digit is set so as to be the same for the screw different in the shape of the head and the same in the shape of the thread. Thus, since it is enough to remember only the higher two digits and the lower one digit, the number of the codes to be remembered is small, and the code of high using frequency becomes easy to remember.
Patent JP-H1087212-A (JP)
Title: Speed governor for elevator
Inventor: HOSOKAWA JUNICHI
IPC: B66B5/04
Filed: 1996-09-12
Abstract: PROBLEM TO BE SOLVED: To eliminate the necessity of installing a speed governor in a machine room so as to increase the degree of freedom for disposing devices and safety by attaching the speed governor for detecting the abnormal speed of a car and actuating an emergency stop to the car. SOLUTION: A speed governor rope 3 is suspended from the top part of a hoistway 4 and laid in a vertical direction by fixed tension by a speed governor rope weight 9. The speed governor rope 3 drives a sheave by a pulley in a speed governor 1 fixed to a car 2. The speed governor rope 3 is prevented from being moved even when the car 2 moves because it is fixed to a hoistway 4. Thus, the necessity of disposing the speed governor 1 in a machine room 6 or in the lower part of the hoistway 4 is eliminated. Accordingly, the disposition of the speed governor 1 is not limited by the devices of the machine room 6.
Patent JP-H06207331-A (JP)
Title: Maintenance and management system
Inventor: SHIMIZU TSUNEO
IPC: D01G13/00
Filed: 1991-09-20
Abstract: PURPOSE:To provide a maintenance and management system enabling the control of each step of cotton spinning process. CONSTITUTION:The operation status of each step from mixing and blowing step 20 to winding step 65 is inputted into a host computer 80 for centralized control and the status of each machine of each step is displayed on a display 90 with colors showing the operation state such as stoppage of the machine.
Patent JP-H0695508-A (JP)
Title: Copying machine
Inventor: USHIO MASARU
IPC: G03G15/00
Filed: 1992-09-10
Abstract: PURPOSE:To shorten FCOT by using a different criterion for patch display for the first copy from that for the second and subsequent copies. CONSTITUTION:A control portion 43 compares a patch density signal given from an A/D convertor 47 with a first threshold X1 stored on a threshold table 55. The first threshold X1 is exclusively for the first copy and greater than a normal threshold (second threshold X2). For the first copy, rotation of a photoreceptor drum 20 is slow so that the amount of electrification by a charged electrode 21 increases, generally resulting in density enhancement; to prevent the density from being enhanced, i.e., to make the density equal to that for the second and subsequent copies, the threshold X1 is made greater so that the amount of supply of toner is reduced. For the first copy, copying operation is therefore started before the photoreceptor drum 20 reaches a constant rate, and so FCOT is shortened.
Patent JP-H0975605-A (JP)
Title: Removal of organic impurity in aqueous solution of hydrogen peroxide
Inventor: MATSUMOTO TOSHINORI
IPC: B01D9/02
Filed: 1995-09-20
Abstract: PROBLEM TO BE SOLVED: To obtain an aqueous hydrogen peroxide solution with small amount of organic substance content by carrying out solid-phase precipitation process in a specified condition for an aqueous hydrogen peroxide raw solution in the case of refining of the aqueous hydrogen peroxide solution. SOLUTION: An aqueous hydrogen peroxide raw solution containing at least 45wt.%. preferably 45-61wt.%. of hydrogen peroxide is cooled at a temperature from -0.5 to -56.1 deg.C. In this temperature range, a solid phase is precipitated at 18-150g/liter - the aqueous hydrogen peroxide raw solution.hr of precipitation rate. The soiled phase obtained is melted and a highly pure aqueous hydrogen peroxide solution from which organic impurities are removed to 3ppm or lower is obtained, and the solution has an industrial advantage. An aqueous hydrogen peroxide solution produced by anthroquinone method is preferable as a raw material, but the solution produced by other methods may also be acceptable. Furthermore, it is preferable to add a solid phase having the same hydrogen peroxide concentration as that of the solid phase to be precipitated as a seed crystal.
Patent JP-S6482563-A (JP)
Title: Semiconductor device
Inventor: KONDO HISAO
IPC: H01L29/78
Filed: 1987-09-24
Abstract: PURPOSE:To shorten turn-off time wherein an internal electric field generates in a second region, and the effective diffusion constant of carrier in the second region is controlled, by making the impurity distribution in the second region have a gradient in the direction vertical to the main surface. CONSTITUTION:The concentration distribution of N-type impurity in a first N-type region 2 is minimum on the boundary surface between a first P-type region 1 and the region 2, increases in accordance with the approach to a second N-type region 3, and becomes medium on the boundary between the second N-type region 3 and the region 2. Since the concentration distribution of N-type impurity is made to have a gradient, an internal electric field generates in the first N-type region 2, and the direction of the field is inverse to the gradient of the N-type impurity concentration distribution. That is, the internal electric field acts so as to block the diffusion of positive hole which is injected from the first P-type region 1 and diffuses into the second N-type region 3. Therefore, the diffusion constant of positive hole and the base transit time are controlled by the internal electric field, and the turn-off time of IGBT is shorten.
Patent JP-2000071190-A (JP)
Title: Workpiece carrying system
Inventor: NOMURA MAKOTO
IPC: B25J13/08
Filed: 1998-08-27
Abstract: PROBLEM TO BE SOLVED: To shorten the cycle time and correct dislocations of carried workpieces precisely. SOLUTION: Detecting elements 10 to 12 are mounted on a robot body 5 of a workpiece transfer robot R to detect the positions of two points P1 and P2 on a longitudinal side and one point P3 on a lateral side both on the midway of a workpiece 2a trajectory while it is transferred by a telescopic hand H. Based on the detection results, a robot controller 9 computes actual dislocations of the workpiece 2a from the standard position to thereby correct the dislocations of the workpiece 2a during carrying by moving the hand H correspondingly. The dislocations of the workpiece 2a are represented by the angular movement and corner travels of the workpiece 2a.
Patent JP-S6484912-A (JP)
Title: Integrated circuit
Inventor: HIRATA MASAKI
IPC: H03K19/086
Filed: 1987-09-25
Abstract: PURPOSE:To reduce the influence of a current amplification factor and an operation speed caused by a temperature variation, to suppress the fluctuation of an oscillation frequency, and to prevent the malfunction by forming a load resistance element of a bipolar transistor of a logic circuit by a MOS transistor. CONSTITUTION:MOS transistors Q5, Q6 are used as load resistance elements of bipolar transistors Q1, Q4, respectively, by which each inverter circuit 1 is constituted. When this circuit 1 is connected successively, for instance, by 49 pieces, a ring oscillating circuit whose oscillation frequency is about 20MHz is constituted. A current amplification factor of the bipolar transistor increases as a temperature rises and an operation speed increases, but by using the Q5 and Q6, a load current of the Q1 and Q4 is limited, and a switching speed as the circuit 1 does not increase. It is because the mutual conductance of the Q5 and Q6 drops as a temperature rises, and the resistance value becomes high. By an offset effect of a temperature characteristic of the transistor in such a way, the temperature characteristic of the oscillation frequency is improved greatly, and the oscillation frequency of the ring oscillating circuit is stabilized.
Patent JP-H03107504-A (JP)
Title: Fluid leak preventing device for axial flow turbine
Inventor: YAMAZAKI YOSHIAKI
IPC: F01D11/08
Filed: 1989-09-20
Abstract: PURPOSE:To reduce a leak loss so as to enhance turbine stage efficiency by leading fluid in the inlet of a stationary blade to the vicinity of the downstream end in a peripheral axial direction of a bucket cover to eject the fluid toward the upstream in the axial direction. CONSTITUTION:Static diaphragm outer and inner rings 3 and 4 hold a stationary blade 2. A bucket 1 is disposed downstream of the corresponding stationary blade 2. A bucket cover 5 is attached to the tip end of the bucket 1. A seal fin 7 is embedded in the diaphragm outer ring 3 located outside of the bucket cover 5. With this arrangement, a passage 9 communicated from the upstream of the stationary blade 2 toward the outlet of the bucket 1 is formed in the diaphragm outer ring 3. An annular nozzle 10 is interposed between the disphragm outer ring 3 and a cover 8. High pressure steam is ejected from the annular nozzle 10 toward the seal fin 7, thereby preventing any lead of fluid.
Patent JP-H0692501-A (JP)
Title: Paper sheet carrying mechanism
Inventor: SUZUKI TOMONORI
IPC: H04N1/00
Filed: 1992-09-10
Abstract: PURPOSE:To get back separating performance of a separating piece, and use the same repeatedly by providing a holding means to hold the separating piece used in a document separating mechanism to separate documents one by one so that a contact position can be changed on a contact surface where the documents and a separating roller come into contact with each other. CONSTITUTION:In a document separating mechanism in a device such as a facsimile, a large number of documents 7 placed on a document tray 8 are carried to a contact part of a separating piece 1 and a paper separating roller 6 by means of dead weight or the paper separating roller 6 and the like. Carrying is stopped by means of the separating piece 1, and only the lowermost document 7X is carried out by being separated from the others due to suppressive force received from the separating piece 1. Though the separating piece 1 is installed in a separating piece holder 2, in this case, positioning holes 4 (4a and 4b) are formed in plurality in the separating piece 1. When document separating performance is deteriorated due to abrasion of a contact part 5, if the separating piece 1 is replaced by reversing the upper and lower parts or the obverse and reverse, the document separating performance can be get back.
Patent JP-H0288941-A (JP)
Title: Creep testing device
Inventor: KOSHIMIZU YASUHARU
IPC: G01N3/00
Filed: 1988-09-27
Abstract: PURPOSE:To always set weights 5 to the position near a floor so as to reduce the impact produced when samples are cut by driving a motor in the weight winding-up direction after detecting the sinking of the weights caused by the elongation of the samples by means of a sensor 6. CONSTITUTION:A sample fitting section 2 is fitted to a frame 1 in a vertically movable state and a winding motor 3 is coupled with the frame 1 in a state where heights of weights can be adjusted. Then one ends of samples 4 are fixed to the section 2 and weights 5 are fixed to the other ends of the samples 4. An optical sensor 6 for detecting lower limit positions of the weights 5 is provided at the bottom section of the frame 1 and a motor controller 7 is con nected with the output terminal of the sensor 6. When the samples 4 elongate due to the creep and the weights 5 sink, the sensor 6 detects the sinking of the weights and the controller 7 drives the motor 3 in the weight winding-up direction. As a result, the weights are moved upward and kept at fixed heights. Therefore, the heights of the weights 5 can be limited to low levels from the floor and the impact produced when the samples are cut can be reduced.
Patent JP-H0688306-A (JP)
Title: Block for melting snow of road and the like and construction method therefor
Inventor: KITAGAWA GIICHI
IPC: E01H3/04
Filed: 1992-09-10
Abstract: PURPOSE:To facilitate paving at a boundary and prevent the separation thereof by providing a protrusion near a nozzle of a block for melting snow including therein a water couduit and a sprinkling nozzle and newly paving a space between an existing pavement and the protrusion after the blocks are connected and embedded in an excavated groove and backfilling is performed. CONSTITUTION:In a block 1 including a water conduit 4 and a plurality of sprinkling nozzles 8, a protrusion 7 is provided on the periphery of each of the nozzles 8 and the upper surface 7A of the protrusion is installed in an excavated groove 23, wherein the blocks 1 are connected and embedded, so as to come to the same level as a road surface 22. Next sands or gravels are filled into a gap between the block 1 and the groove 23 and thereafter a new pavement layer 26 is provided between an existing pavement layer 24 of the surface 22 and the protrusions. As a result, paving can be performed surely and easily on the periphery of the protrusions 7.
Patent JP-H1169549-A (JP)
Title: Wiring method of equipment to be installed
Inventor: HONDA TADAHIRO
IPC: H01B7/36
Filed: 1997-08-22
Abstract: PROBLEM TO BE SOLVED: To provide a wiring method of an equipment to be installed capable of easily conducting the connection work of wiring cord comprising a power cable and a control wire. SOLUTION: In a wiring method, the equipment 21, 37 are mounted on a mounting member, one end part is connected to electrical (25), (36), 38, 39 of the equipment 21, 37 via a wiring hole provided in the mounting member, the other end part leads the wiring cord groups 41a, 44a, 45a in which a plurality of primary side connectors 42, 46, 48 are provided, and the primary side connectors 42, 46, 48 are connected to corresponding secondary side connectors 43, 47, 49. The lead-out length L1, L2, L3 of a plurality of wiring cord groups 41a, 44a, 45a are changed for each of primary connectors 42, 46, 48 on which the wiring cord groups are mounted.
Patent JP-H0291956-A (JP)
Title: Film carrier
Inventor: TAKUBO TOMOAKI
IPC: H01L21/60
Filed: 1988-09-29
Abstract: PURPOSE:To prevent breakdown and deformation due to a sprocket when the thickness of a film is thin by providing a reinforcing material such as metal on the surface of the film in the vicinities of perforations in the film, and increasing the strength of the film. CONSTITUTION:In a film formed with a long film carrier 1, the following parts are provided: a coplanar grounding conductor surface 2; a rear grounding surface 4; an insulating layer 7 comprising adhesive agent layers 5 holding an insulating film layer 6; and a signal line 3. A reinforcing material 13 as a reinforcing copper foil is arranged on the film 1 in order to reinforce perforating parts. The thickness of the reinforcing material 13 is made equal to the thickness of a copper foil wiring arranged on the film. Before the perforations are formed in the film 1 with metal molds, the reinforcing copper foil is bonded to the entire surface of the film on the required region in the vicinities of the perforations. Thus the strength of the film 1 is improved. Even if the thickness of the film 1 is thin, breakdown and deformation due to sprocket can be prevented.