baber/WOPTO huggingface dataset:
Patent JP-H03284304-A (JP)
Title: Control method for injecting flocculant
Inventor: IGARASHI CHIAKI
IPC: B01D21/30
Filed: 1990-03-30
Abstract: PURPOSE:To suppress the variations in the turbidity of treated water and to reduce the amt. of flocculant to be injected by determining the amt. in accor dance with the compared result between the determined streaming current difference command and the measured streaming current difference value. CONSTITUTION:When the operation of a flocculating and settling device 10 is started, the optimum streaming current difference is appropriately selected by a setting device 21 each time when the measured raw water pH value is supplied from a raw water pH meter 17, and the difference is outputted to a comparator 23 as the command for the streaming current difference. The raw water not supplied with the flocculant and the raw water supplied with the flocculant are measured by a streaming current meter 19, the results are inputted to an arithmetic device 22, and the measured streaming current differ ence value is obtained and outputted to the comparator 23. The difference between the command for the streaming current difference and the measured streaming current difference value is obtained by the comparator 23, the com pared result is outputted to a controller 24, and the amt. of flocculant to be injected is determined in accordance with the supplied compared result and outputted to a flocculant injector 16.
Patent JP-H11278365-A (JP)
Title: Dividing quantity measuring method for stern curved outside plate block
Inventor: WADA TAKAO
IPC: G01C15/00
Filed: 1998-03-31
Abstract: PROBLEM TO BE SOLVED: To omit cutting in the field in an installation time so as to shorten an installation process by measuring a group of front side block stern cross section dividing points and a group of stern side block front cross section dividing points through respective block coordinate systems and computing a dividing quantity serving as a previous cutting quantity for the group of stern side block front cross section dividing points. SOLUTION: A front side block AP2 is installed after an inclination of a deck 12 plane is measured on a surface plate and projection/recess quantities of a deck, a girder, and an outside plate are measured. Then, an inclination of the deck 12 plane is measured from a dock gate, an inclination of a rudder shaft 14 is measured, and a projection/recess quantity of a rudder horn 17 is measured. Before a stern side block AP3 is installed, an inclination of a deck 13 plane is measured on the surface plate, projection/recess quantities of the deck, the girder, and the outside plate are measured, and projection/recess quantities of rudder horn opening parts 15, 16 are measured. Subsequently, a cutting quantity is measured, previous cutting is carried out, and then, installation is carried out.
Patent JP-H10266936-A (JP)
Title: Capacitor charged/discharge type ignition device
Inventor: SEKIGUCHI TOMIO
IPC: F02P3/08
Filed: 1997-03-21
Abstract: PROBLEM TO BE SOLVED: To supply appropriate ignition energy to an engine, by changing and adjusting charge voltage of a capacitor using an external condition signal. SOLUTION: Voltage supplied from a battery 1 is impressed to a transistor 8 through an oscillating circuit 2 and a transformer 9, and operation of the oscillating circuit causes the transistor 8 to repeat on and offconditions. Changing of the first voltage of the transformer 9 generates voltage raised on the second side to charge capacitors 11 and 14 through a diode 10. Entering of a signal from a pulsar coil 19 causes a thyrister to be on, and electric charge of the capacitor 14 to impress voltage to the first side of an ignition coil 16 through the thyrister 15. Input signal voltage controls voltage at A point and charging voltage of the capacitor 14. Thus, appropriate ignition energy can be kept and engine performance can be improved.
Patent JP-H10267639-A (JP)
Title: Method for computing tube expanding ratio
Inventor: KOIKE MASAMI
IPC: G01B17/02
Filed: 1997-03-21
Abstract: PROBLEM TO BE SOLVED: To provide a method for computing tube expanding ratio by which the expanding ratio of a tube can be found easily and accurately even when the wall thickness of the tube is as thin as <=0.5 mm. SOLUTION: Before and after a tube 11 is expanded by putting the tube 11 over the putting-over holes 14 and 15 of tubesheets 12 and 13, an ultrasonic probe 19 is inserted into the tube 11 and ultrasonic waves are oscillated toward the internal surface of the tube 11 from the probe 19. Then bottom face echo multiplex reflected wave signals are received and subjected to Fourier transformation and the wall thicknesses of the tube 11 before and after expansion are measured form the Fourier-transformed frequency data. Finally, the expanding ratio of the tube 11 is computed from the computed wall thicknesses.
Patent JP-S5422320-A (JP)
Title: Preparation of anhydrous maleic acid
Inventor: KAMIMURA SHIGEO
IPC: B01J31/00
Filed: 1977-07-21
Abstract: PURPOSE: To prepare anhydrous maleic acid in high yield by catalytic oxidation of unsaturated hydrocarbons having C 4  or more with gases containing O 2  in the gas phase in the presence of specific catalysts with high catalytic activity. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H02286930-A (JP)
Title: Gas spring having release tappet protected against corrosion
Inventor: YUURUGEN KESURAA
IPC: F16F9/38
Filed: 1990-04-03
Abstract: PURPOSE: To form a gas spring so that corrosion of a release tappet is avoided effectively, by structuring so that a protection device installed on the release tappet surrounds the tappet in such a way as sealing partially. CONSTITUTION: This gas spring 10 consists chiefly of a vessel pipe 11, which is furnished at one end with a fixture eye 13, and a piston rod 12 can run into and out of the vessel pipe on the side opposite the fixture eye 13. A release tappet 14 has a free end which protrudes from the piston rod 12 and is guided, and hose-shaped bellows 15 are installed around the release tappet 14 for protecting against any attacking medium. The bellows 15 are furnished at one end 45 with a bellow support part 23 and coupled with the piston rod 12 in such a way as sealed by a holding swelling 17. At the other end, the bellows 15 have a retaining collar 21 and are held in a holding groove 24 in such a way as sealing along the tappet 14.
Patent JP-H02266438-A (JP)
Title: Checking circuit for vector arithmetic unit
Inventor: MOCHIZUKI ATSUO
IPC: G06F9/38
Filed: 1989-04-06
Abstract: PURPOSE:To speed up the operation of an arithmetic circuit by inputting checking vector data to a vector computing element in response to the end of vector operation and comparing the computed result with a previously determined correct answer value. CONSTITUTION:When a vector operation end signal is inputted, a checking vector data setting signal is sent to registers 21, 22 with selectors from a signal generating circuit 23 and checking vector data are stored in the registers 21, 22. The vector data stored in the registers 21, 22 are calculated by the vector computing element 23 and are compared with the correct answer value stored in a register 4 and sent from a register 24 by a comparator 12 based on a comparison executing signal sent from a signal generating circuit 23. Consequently, the capacity of the checking circuit is reduced, the integration performance of the arithmetic circuit is improved due to the reduction of the capacity of hardware and the operation of the arithmetic circuit is accelerated.
Patent JP-2000283115-A (JP)
Title: Piston packing and rodless cylinder
Inventor: NODA MITSUO
IPC: F16J15/3236
Filed: 1999-03-30
Abstract: PROBLEM TO BE SOLVED: To reduce abrasion of a piston packing slidably contacting with an inner seal band blocking a slit to improve durability. SOLUTION: In this piston packing 7, an outer lip part 17a corresponding to an inner seal band 20 has a groove part 15 whose groove depth is deeper than the other outer lip part 17b to allow easy bending. Accordingly, even if an inner pressure opens a slit 3, the outer lip part 17a follows the opening, easily moves toward the inner seal band 20, and comes into pressure-contact with the inner seal band 20. In the outer lip part 17a corresponding to the inner seal band 20, sliding resistance between the outer lip part 17a and the inner seal band 20 does not become large because compressive strength of the outer lip part 17a itself is small. Accordingly, even if the lower face of the inner seal band 20 is ground and has slightly roughness due to the ground trace, early abrasion of the piston packing 7 thereby is not generated.
Patent JP-S62246441-A (JP)
Title: Movable table
Inventor: ISHIGAKI HIROSHI
IPC: B23Q1/60
Filed: 1986-04-18
Abstract: PURPOSE:To make it possible to shorten the length of a guide section with respect to the displacement of a table, by providing a second table moved by a second screw shaft on a first table moved by a first screw shaft. CONSTITUTION:When a motor 8 is rotated, the rotation of the motor is transmitted through a coupling 9 to a second feed screw 14 and is then transmitted through pulleys 10, 11 and a belt 12 to a first feed screw 13. In this arrangement, the first screw shaft 13 is secured to the side surface of the first table 3 while nut 7 is secured to a base 1, and therefore, when a motor 8 is rotated, the nut 7 is moved in the direction of the first feed screw 13 to move the first table 3. Meanwhile a second table 5 set on the first table 3 is secured thereto with a nut 7 engaging with the second feed screw 14, and therefore when the second feed screw 14 is rotated, the second table 5 is moved in the direction of the second feed screw 14.
Patent JP-S62245689-A (JP)
Title: Semiconductor light emitting device
Inventor: KINOSHITA HIDEAKI
IPC: H01S5/00
Filed: 1986-04-18
Abstract: PURPOSE:To relieve the distortion due to the stress on a double stereo structure by a method wherein a buffer layer with the same conductivity type as that of a clad layer and the lattice constant between the clad layer and the substrate is provided between the substrate and the clad layer on the same side as that of the substrate opposing to the active layers. CONSTITUTION:An N type GaAs layer 2, an N type Al0.3Ga0.7As buffer 23, an N type Al0.45Ga0.55As clad 4 are laminated on an N type GaAs substrate 1 while the mixed crystal ratio of layer 23 is made less than that of the layer 4 to relieve the stress distortion in the grown layer formed on the upper part. First, an active layer AlyGa1-7As(undoped) 5 with mixed ratio y =0-0.15,a P type Al0.45Ga0.55As clad 6 and an N type Al0.3Ga0.7 As current strangulation layer 28 are laminated and then the layer 28 is etched to make a strip-groove 7. Second, a P type Al0.45Ga0.55As 9, a P type GaAs connecting layer 10 are laminated and then a Cr-Au electrode 11, an Au-Ge electrode 12 are formed. In such a constitution, the lattice alignment between substrate side clad and active layer can be improved to relieve the stress distortion so that in the active layers laminated in upper part, the lattice defect due to the stress distortion may be relieved to improve the luminescent efficiency and other characteristics.
Patent JP-H09283392-A (JP)
Title: Method and device for laminating substrates
Inventor: TANAKA HIDEJI
IPC: H01L21/02
Filed: 1996-04-10
Abstract: PROBLEM TO BE SOLVED: To materialize a method of laminating two sheets of substrates in condition that there is no flexion or distortion and inner stress does not remain, in a method and a device for laying one on top of the other before joining two sheets of substrates. SOLUTION: An upper mechanism 20 is composed of a support disc 21 supported capable of ascent and descent by a drive means, suction heads 22 and 23 fixed to the bottom of this support disc 21, a lifting cylinder 24 fixed to the bottom of the support disc 21, a mobile plate 25 connected and fixed to the mobile rod of the lifting cylinder 24, and a press pin 26 supported by the mobile plate 25. Exhaust ports 22a and 23a are made, respectively, at the suction heads 22 and 23, and the suction heads are equipped with a plurality of openings at the the suction faces 22b and 23b. The press pin 26 is passed freely to ascent and descent in the passage hole made in the mobile plate 25, and it is energized downward by a coil spring 27, and the surface of the pin head 26a at the tip is made in hemispherical form.
Patent JP-H07298219-A (JP)
Title: Television receiver
Inventor: KAMEMOTO KAZUHIRO
IPC: H04N7/01
Filed: 1994-04-26
Abstract: PURPOSE:To allow the television receiver to video-record a squeeze signal and to identify a signal to be the squeeze signal. CONSTITUTION:A scanning line conversion circuit 4 converts a valid scanning line number of a chrominance signal from a YC separator circuit 3 into 480 lines and provides an output of the converted signal to a color demodulation circuit 6. Furthermore, a scanning line conversion circuit 5 improve the resolution of a luminance signal whose scanning lings are 360 with respect to a height of the screen from the YC separator circuit 3 by using a vertical reinforcement signal and converts the valid scanning line number into 480 lines. Squeeze signals from the scanning line conversion circuits 4, 5 are fed to a video recording terminals 29, 30. Thus, video recording of the squeeze signal is attained. The video recording terminal connects to a power supply terminal 30 via a resistor 30 and a switch 32, and a switch 33 is closed upon the receipt of a 2nd generation EDTV system signal to superimpose a prescribed DC voltage onto the chrominance signal. The output of the squeeze signal is discriminated by the DC voltage.
Patent JP-2000284912-A (JP)
Title: Touch panel input computer
Inventor: YOTSUYA AKIO
IPC: G06F3/041
Filed: 1999-03-30
Abstract: PROBLEM TO BE SOLVED: To improve the convenience for a user by making it unnecessary to provide any button or icon for switching the right and left click operation of a mouse when using a touch panel. SOLUTION: Relating to this touch panel computer that the switching of a click operation is operated according to the sizes of areas simultaneously brought into contact with a touch panel and the number of coordinate points simultaneously brought into contact with the touch panel at arbitrary coordinate positions on the touch panel, it is provided with a coordinate storing means 6, a reference data table 12, a coordinate comparing means 7, a contact area counting means 10, plural simultaneous contact detecting means 11, and a judging means 8. Then, an input data table 13 is prepared, and when it is judged that the contact area is beyond a constant value or that plural simultaneous detection is present from the data of an input data table A14 or an input data table B15, the switching of the click operation is caused so that the switching of the click operation can be attained.
Patent JP-S59215348-A (JP)
Title: Polymer composition
Inventor: NAITOU KAZUMI
IPC: C08L23/00
Filed: 1983-05-23
Abstract: PURPOSE:To provide a polymer compsn. having excellent adhesion to other materials such as metal and suitable for use in the production of electrodes for a solar battery, by blending a modified polyolefin with an acetylene high polymer in a specified weight ratio. CONSTITUTION:Acetylene, alone or a mixture thereof with its derivative such as ethynylbenzene or divinylbenzene is (co)polymerized in the presence of a Ziegler catalyst, etc. to prepare a powdered or lump acetylene high polymer. Separately, an alpha,beta-unsaturated carboxylic acid or its derivative (e.g. acrylic acid or maleic anhydride) is grafted onto a polyolefin such as polyethylene or polypropylene in the presence of a free radical-generating agent such as dicumyl peroxide to prepare a modified polyolefin. 0.1-200pts.wt. said modified polyolefin is blended with 100pts.wt. said acetylene high polymer to obtain the desired polymer compsn.
Patent JP-H06275346-A (JP)
Title: Electric connecting device, electric connecting board used for the same, and electric connector
Inventor: KOYAMA NORIYUKI
IPC: H01R13/33
Filed: 1993-03-23
Abstract: PURPOSE:To provide an electric connecting device, an electric connecting board, and an electric connector formed in the one-piece type, capable of miniaturized, and excellent in the reliability on connection and the workability at the time of assembling. CONSTITUTION:A connector insertion hole 3 is formed on a board l jumper wires 4 are fitted astride the connector insertion hole 3, and both end sections 5, 6 of the jumper wires 4 are connected to the circuit pattern of the board 1. Jumper wire coupling recesses 7 are formed on the connector 2, and contacts 8 are fitted to clip the jumper wires 4 coupled with the jumper wire coupling recesses 7. The connector insertion hole 3 is formed on the board 1, the jumper wires 4 are fitted astride the connector insertion hole 3, and both end sections 5, 6 of the jumper wires 4 are connected to the pattern of the board 1 to form an electric connecting board, or a housing 9 is formed insertably into the connector insertion hole 3 of the board 1, jumper wire coupling recesses 7 are formed on the housing 9, and the contacts 8 are fitted in the housing 9 to form an electric connector.
Patent JP-S59215124-A (JP)
Title: Cmos selecting circuit
Inventor: FUKAZAWA SHIGERU
IPC: H03K19/096
Filed: 1983-05-23
Abstract: PURPOSE:To decrease the nmber of components and the occupied area by providing an NMOSFET using a gate output as its gate terminal input between a gate input terminal and a power supply. CONSTITUTION:A input signal is fed to gates 6, 8 from terminals 2, 4 and NMOS switches 15, 16 select an output of the gates 6, 8 by a selecting signal from terminals 1 and 3. A gate 11 outpts a selected signal 12 by receiving an output of the switches 15, 16 and a PMOS17 is provided to prevent the decrease in the level of the switch output. When the input to the gate 11 reaches a level lower than the power supply voltage by a threshold voltage VTH of the NMOS, the output of the gate 11 is inverted to a low level, the gate of the PMOS10 goes to a low level and a drain terminal and a source terminal of the PMOS17 are short-circuited. As a result, the input to the gate 11 goes to a high level equal to the power supply voltage.
Patent JP-H06273717-A (JP)
Title: Liquid crystal projector
Inventor: OGAWA MASAHIRO
IPC: G02F1/1347
Filed: 1993-03-23
Abstract: PURPOSE:To obtain excellent image quality while keeping cost low and a projecting distance short in a liquid crystal projector. CONSTITUTION:In this projector where light from one light source 1 is separated to three components, red, green and blue so as to respectively irradiate three corresponding liquid crystal display parts 6, 7 and 8, and pictures displayed on the respective display parts 6, 7 and 8 are enlarged and projected on a screen by projection lenses 11 and 12; the projection lens for G 12 enlarging and projecting the picture displayed on one display part 8 among three display parts 6, 7 and 8 on the screen is provided. Furthermore, the projection lens for R and B 11 synthesizing the pictures displayed on two other display parts 6 and 7 by utilizing reflection and transmission by a dichroic mirror for synthesis 10 and enlarging and projecting it on the screen is provided.
Patent JP-H02267858-A (JP)
Title: Nonaqueous electrolyte secondary battery
Inventor: MISHIMA HIROMITSU
IPC: H01M10/05
Filed: 1989-04-06
Abstract: PURPOSE:To improve the discharge capacity and the cycle life property by using Lil+xV3O8 (0<=x<=3) being an alcohol-treated lithium-vanadium oxide as a positive electrode active substance. CONSTITUTION:Li1+xV3O8 formed of vanadium pentoxide and lithium carbonate is regulated to have the particle diameter less than 38mum, dissolved in ethanol, and after a suction-filtering, it is dried at about 100 deg.C. The resultant active substance, acetylene black to be a conductive agent, and polytetrafluoroethylene to be a binder are mixed and kneaded sufficiently at the wt. ratio 80:15:5, it is made into a sheet form of the thickness 0.8mm by a roller press, punched in a circular form with the diameter 16mm, and dried in a vacuum at 200 deg.C, to make into a positive electrode. Then, a lithium foil with the thickness 0.3mm is punched in a circular form with the diameter 15mm to form a negative electrode. As an electrolyte, a substance made by dissolving 1mol/l of LiClO4 in a mixture solvent composed of an equal volume of propylene carbonate and dimetoxyethane is used.
Patent JP-S5714983-A (JP)
Title: Control device for starting position of picture recording
Inventor: SHIBATA ISAMU
IPC: B41J2/44
Filed: 1980-07-01
Abstract: PURPOSE:To keep a constant starting position of picture recording in high accuracy, by counting the signals having the frequency and phase coinciding with the output of a beam position detector incorporating a slit pattern and then deciding the starting position of picture recording. CONSTITUTION:The repetitive signal having a frequency proportional to the speed of scan that scans the receiving surface of laser beam is produced by a beam position detector 9, and both the frequency and phase of the output of the detector 9 are stored at 20. Then the repetitive pulse having the frequency and phase coinciding with those of the output of the detector 9 is produced from a voltage control oscillator 21. The signal indicating the start of picture recording is produced for scanning when the output pulses of the oscillator 21 are counted by a counter 13 up to a prescribed value. Thus the video clock begins to emerge to start the picture recording based on the time point when the laser beam passes through the detector 9 and then when the PLL22 is produced in the number equal to the number of presets of the counter 13.
Patent JP-H09284160-A (JP)
Title: Frequency conversion circuit
Inventor: KAWAGUCHI TOSHIHARU
IPC: H03D7/00
Filed: 1996-04-11
Abstract: PROBLEM TO BE SOLVED: To reduce a DC offset caused by self-mixture. SOLUTION: A frequency conversion means 3 detects a modulation signal received from an input terminal 1 based on a frequency conversion carrier received from an input terminal 2. When the frequency conversion carrier is leaked to the input terminal 1, the frequency conversion means 3 causes self- mixture resulting from detection by the frequency conversion carrier itself and a DC offset in response to the leaked carrier is caused at an output terminal 4. Then a DC level detection means 5 detects a DC level of a signal outputted at the output terminal 4. A DC offset is extracted based on a DC level detected by the DC offset control means 6 and a DC level of an output section of the frequency conversion means 3 is controlled depending on the offset.  The DC offset caused at the output terminal 4 is fed back to cancel the DC offset caused at the output of the frequency conversion means 3 so as to keep a distortion characteristic in the output signal in an excellent way.
Patent JP-H08288433-A (JP)
Title: Heat radiator for heat generator element
Inventor: SATOMI KUNIO
IPC: H05K7/20
Filed: 1995-04-14
Abstract: PURPOSE: To provide a small size and light weight heat radiator assuring radiation of a large amount of heat per unit area by forming a large number of projections to at least one surface, except for the heating generating element mounting position, of a heat radiator for a heat generating element. CONSTITUTION: A heat radiator 9 is provided, at its one surface, with many projections 2 except for the element mounting position. Each projection 2 is provided with a hole 3 provided up to the rear surface of the heat radiator 9. Thereby, the total front surface area per unit area of the heat radiator 9 becomes large and the amount of heat radiated per unit volume becomes larger than that of the related art. Since height of the projection 2 is lower than that of the heat radiating fin of the related art, size in the plate thickness direction of the heat radiator 9 can be reduced as much, resulting in no fear for lowering element mounting density in the printed circuit board. Therefore, an electronic circuit device constituted by using the heat radiator 9 can be completed small in size and light weight with the sophisticated function.