baber/WOPTO huggingface dataset:
Patent JP-H01315673-A (JP)
Title: Ignition device for internal combustion engine
Inventor: TODO KENJI
IPC: F02P15/00
Filed: 1988-06-15
Abstract: PURPOSE:To reduce the occurrence of noise by connecting a low resistor in series to the power source side of a primary winding in an ignition coil so that a reverse voltage produced through the low resistor is detected in order to lower the voltage through the primary winding. CONSTITUTION:A switching unit 22 is connected thereto with a d.c. power source 1 and a primary winding 2 of an ignition coil 2 whose secondary winding 2b is connected with a spark plug 3. When an ignition timing signal in, for example, positive rise is inputted at an ignition signal input terminal 23, the power unit 24 grounds the primary winding 2a. At this time, a high induced voltage is generated through the primary winding 2a, and a part of the induced voltage gives noise current which reversely runs toward the d.c. power source 1. In order to give a countermeasure to the noise current, a low resistor 12 connected in series to the power source line detects the noise current. When the detected value comes to a predetermined value, a PNP transistor 13 is energized to lower the voltage through the primary winding 2a.
Patent JP-H11334924-A (JP)
Title: Belt conveyor for image forming device
Inventor: NAKANE YOSHIMITSU
IPC: G03G15/16
Filed: 1998-05-27
Abstract: PROBLEM TO BE SOLVED: To provide a belt conveyor for an image forming device, which can improve separating performance of a transfer material from an elastic belt without reduction of conveyance stability and durability of the elastic belt. SOLUTION: A belt conveyor for an image forming device conveys a transfer paper (a transfer material) P held on an endless transfer belt (an elastic belt) 18, by driving it while the endless transfer belt 18 is stretched with plural rollers containing at least one driving roller 22. The driving roller 22 comprises a pulley (a driving part) 39 rotating with its core metal 37 and a corrugated pulley (a driven part) 40 follow rotated with respect to the core metal 37. The corrugated pulley 40 is formed with at least one projecting part 40a having a larger outer diameter than an outer diameter of the pulley 39 and at least one recessed part 40b having a smaller outer diameter than the outer diameter of the projecting part 40a.
Patent JP-S5935078-A (JP)
Inventor: YAMADA KAZUO
IPC: C01B31/04
Filed: 1982-08-23
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-H077962-A (JP)
Title: Fault detector for inverter
Inventor: SUKEGAWA HIROSHI
IPC: H02P27/06
Filed: 1993-06-17
Abstract: PURPOSE:To know a short-circuit or an open fault of a switching element when an inverter is not operated due to a maintenance time caused by the short-circuit or the open fault of the element or shortening of a down time of a motor due to it. CONSTITUTION:A fault detector for an inverter comprises a voltage detector for detecting a switching element fault or current detectors 6a, 6b at an inverter having switching elements 5a-5f connected in a bridge, and means for outputting an ignition signal 8 for detecting a switching element fault to the elements 5a-5f, wherein ignition signal outputting means has two patterns, one sequentially ignites short-circuit fault detecting one by one, and the other sequentially ignites combination of upper and lower elements in which the opening fault detections do not become a pair. Further, it decides a short-circuit or open fault of elements of all the arms at the timing of the operations of the voltage detector or the detectors 6a, 6b and the ignition signal for detecting the fault.
Patent JP-H076974-A (JP)
Title: Manufacture of compound semiconductor device
Inventor: FUCHIGAMI NOBUTAKA
IPC: H01L21/22
Filed: 1993-06-17
Abstract: PURPOSE:To enable a compound semiconductor device to be lessened in thermal treatment temperature and make a diffusion source film prescribed in thickness and quality with high reproducibility by a method wherein a high melting point metal silicide prescribed in Si composition is formed on a compound semiconductor layer, a nitride film is deposited thereon, and then Si is diffused by thermal treatment. CONSTITUTION:A WSix film 2 (x>0.8) is deposited on an undoped or a P-type GaAs layer 4 as thick as 30mm or below through a magnetron sputtering method, and the WSix film 2 is partially removed leaving a part where a conductive layer is formed unremoved. Thereafter, a W5Si3 target is sputtered in an atmosphere of nitrogen for depositing a WSixNy film 1. The wafer composed of the films 4, 2, and 1 is thermally treated to diffuse Si contained in the WSix film 2 to form an N-type conductive layer 8. After the WSixNy film 1 and the WSix film 2 are removed, a recess as deep as 20mm or so is so provided by etching to a gate forming region as to remove the influence of diffused W, and a gate electrode 3 is provided. The gate electrode 3 is formed through such a manner that a W5Si3 target is sputtered in a vacuum under conditions so controlled as to enable the electrode 3 to be of WSi0.4 in composition.
Patent JP-S5573742-A (JP)
Title: Vinyl chloride resin composition
Inventor: TAKIMOTO MASAHIRO
IPC: C08K3/26
Filed: 1978-11-28
Abstract: PURPOSE: To provide the title composition which can be injection molded to obtain a flexible, semi-gloss article having uniform gloss comparable to the painted article, by compounding an organopolysiloxane and specific amounts of ground calcium carbonate, talc, and a plasticizer.  
     CONSTITUTION: A composition composed of (A) 100 parts by weight of a vinyl chloride resin having an average polymerization degree of ≤1500, (B) 1W4 parts of an organopolysiloxane, (C) 20W50 parts of a mixture of (a) 75W85%, pref. 80% of ground calcium carbonate and (b) 25W15%, pref. 20% of talc, and (D) ≥20 parts, (reduced to DOP with respect to the plastification efficiency) of an ordinary plasticizer.  
     USE: Steering wheels, lever grips, knobs, etc. of automobile. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H11341088-A (JP)
Title: Receiver
Inventor: NOJIRI KOICHI
IPC: H04B1/30
Filed: 1998-05-27
Abstract: PROBLEM TO BE SOLVED: To allow a receiver for executing frequency shift keying(FSK) demodulation by a direct conversion method and also for coping with quaternary FSK demodulation in spite of a simpler and smaller circuit scale. SOLUTION: The receiver is provided with an antenna 11 for receiving an FSK modulated signal, a local oscillation circuit 20 for generating a local oscillation signal having the same frequency band as that of a received signal correspondingly to a prescribed voltage value, a frequency conversion circuit 13 for converting the local oscillation signal into a low frequency signal by mixing it with the received signal, a frequency-voltage conversion circuit 21 for generating a voltage signal corresponding to frequency difference between the low frequency signal and a DC signal to be a reference and feeding back the voltage signal to the circuit 20, and a waveform shaping circuit 18 for shaping the waveform of the voltage signal outputted from the circuit 21 in order to obtain demodulation data.
Patent JP-H0368792-A (JP)
Title: Separating calcium and nitrogen from lithium
Inventor: GIYUI BERUNAARU
IPC: C22B26/12
Filed: 1990-06-04
Abstract: Process for separating calcium and nitrogen from lithium. 
<??>This process is characterised in that alumina is added to molten lithium so as to form aluminium nitride and calcium oxide, which are insoluble, and the said insoluble materials are separated off with heating to recover purified lithium. 
<??>It finds its application in the production of lithium of a quality which is particularly suitable for the manufacture of aluminium-lithium alloys and of electrical battery electrodes.
Patent JP-H10333098-A (JP)
Title: Spatial filter
Inventor: TAZAKI KENJI
IPC: G01B11/00
Filed: 1997-06-04
Abstract: PROBLEM TO BE SOLVED: To accurately and easily perform positional adjustment on an optical axis by making the diameter of an aperture hole on a light incident side smaller than that on a light emitting side. SOLUTION: This spatial filter 10 is constituted of shielding material 11 shielding light and the aperture hole 12 formed in the center of the material 11. The inner wall part 13 of the hole 12 is spread in a tapered state toward the light emitting side from the light incident side. Namely, the diameter of the hole 12 on the light incident side is made smaller than that on the light emitting side. Since the light incident side of the hole 12 is the narrowest in such a case, it is arranged at the position of a beam waist. Therefore, the filter 10 has only to be positioned so that the spot of the incident light may be the smallest on the surface of the material 11, whereby the positional adjustment thereof on the optical axis is accurately and easily performed.  Internal reflected light returning to the vicinity of the hole 12 is reflected by the tapered inner wall part 13 and advances in a direction different from luminous flux passing through the hole 12.
Patent JP-H0816552-A (JP)
Title: Discrete cosine transform device
Inventor: NEMOTO KEIJI
IPC: G06F17/14
Filed: 1994-06-28
Abstract: PURPOSE:To provide a discrete cosine transform device making possible the sufficient high speed when the property of an input digital signal series is considered, the extension of the number of sample is easy and high frequency components can be neglected. CONSTITUTION:In a discrete cosine transform device 15, the odd-numbered sample value of even-numbered sample values inputted in accordance with the order of a digital signal series and the even-numbered sample values to be inputted the next time are added and a low frequency component is determined in a low frequency component calculation part 1, a high frequency component is determined by inverting the positive and negative of the even-numbered value of the permutation of the value obtained by subtracting the even- numbered sample value to be inputted the next time from the odd-numbered sample value in a high frequency component calculation part 2, and a discrete cosine transform is performed for these low frequency component and high frequency component, respectively, by a discrete cosine transform part 3 and a low frequency component transform coefficient and a high frequency component transform coefficient are determined. A weighing addition part 4 performs a weighing addition of the low frequency component transform coefficient and the high frequency component transform coefficient that the discrete cosine transform part 3 outputs and determines the discrete cosine transform coefficient of the digital signal series.
Patent JP-S633533-A (JP)
Title: Word synchronization circuit
Inventor: FUJINOBE YASUHIRO
IPC: H04L7/00
Filed: 1986-06-23
Abstract: PURPOSE:To take synchronization without using a frame pattern by shifting a frequency division clock signal by each period unit of an input clock, giving the result to a serial/parallel conversion circuit thereby taking the word synchronization in the (n+1)-bit unit of an nBIC code being an object of polarity inversion. CONSTITUTION:The nBlc serial signal of a data input 1 from the sender side and the frequency division clock signal subject to 1/(n+1) frequency division by a 1/(n+1) frequency division circuit 6 for a clock input 2 are given to a serial/parallel conversion circuit 4, where the signals are converted into a (n+1)-bit parallel signal 3. An inversion object bit 8 being the object of polarity inversion in advance by the sender side and a C bit 9 being the inversion of the bit 8 are given to an exclusive OR circuit 5. When the both are identical, '0' is given from the circuit 5 to a synchronization protection circuit 7, from which a hunting pulse is given to the circuit 6. Since the phase of the frequency division clock is retarded by the period of the input clock, the word synchronization is taken.
Patent JP-H0714836-A (JP)
Title: Semiconductor device of multilayer inter-connection structure
Inventor: KONDO HIDEKAZU
IPC: H01L21/768
Filed: 1993-06-17
Abstract: PURPOSE:To provide a semiconductor device of a multilayer interconnection structure, which is superior in an adhesion between a connection plug and a metal wiring layer and has high contact resistance. CONSTITUTION:A semiconductor device of a multilayer interconnection structure comprises a lower metal wiring layer 30 formed on a substrate 10, an insulating film 40 formed on the surface of the substrate 10 including the wiring layer 30, an open hole 50 bored in the film 40 by a method, wherein a prescribed position on the film 40 is etched away to make the wiring layer 30 expose, and the wiring layer 30 directly under the open hole 50. Moreover, the device comprises a recessed part 51, which is formed by etching and has a diameter longer than that of the hole 50, and a via plug 52 formed in the recessed part 51 and in the hole 50 by growing a metal film from the recessed part 51 formed in the exposed wiring layer 30.
Patent JP-H05311137-A (JP)
Title: Aqueous tacky adhesive composition
Inventor: ISHIMOTO TSUKASA
IPC: C09J133/08
Filed: 1992-05-12
Abstract: PURPOSE:To obtain the composition having excellent tackiness and adhesiveness at normal temperature and adhesiveness at high temperature by compounding an emulsion of an acrylic polymer with an emulsion of a specific tackifier resin having high softening point. CONSTITUTION:The objective composition contains (A) an emulsion of an acrylic polymer composed mainly of a (meth)acrylic acid ester and (B) an emulsion of a tackifier resin having a softening point of 150-185 deg.C and produced by reacting (i) a resin acid containing a resin acid dimer (e.g. polymerized tall oil rosin) with (ii) a polyhydric alcohol. The component (i) can be produced e.g. by reacting a resin acid monomer (e.g. rosin) in a solvent (e.g. toluene) containing a catalyst (e.g. sulfuric acid) at 40-160 deg.C) for 1-5hr. The component B can be emulsified e.g. by dissolving the component B in a solvent such as benzene, adding an emulsifier (e.g. an alkyl sulfate) and softened water to the solution, emulsifying with a high-pressure emulsifier and removing the solvent under reduced pressure.
Patent JP-H11336338-A (JP)
Title: Reinforced concrete structure demolishing method
Inventor: UKAI TATSURO
IPC: E04G23/08
Filed: 1998-05-28
Abstract: PROBLEM TO BE SOLVED: To reduce the generation of noise, vibration and dust consequent on demolition of a reinforced concrete structure. SOLUTION: In a method of demolishing reinforced concrete structures 10, (12) such as wall bodies having both faces 18, (20) facing each other with a single reinforcement assembly 16 embedded between both faces, a direct current is first sent between the reinforcement assembly 16 and a band area surrounding a part on each face. A plurality of holes 32 extended in current applied concrete parts 22, (24) are then bored, and an expanding agent 34 is filled in each hole 32 so as to crush each concrete part by the volume expansion of the expanding agent 34. Each concrete part is then removed, and a part of the exposed reinforcements assembly is cut off.
Patent JP-H08319617-A (JP)
Title: Method and equipment for improvement construction of foundation ground
Inventor: KOI TERUO
IPC: E21B7/00
Filed: 1995-05-23
Abstract: PURPOSE: To make a pile pit extremely easily scarcely lifting excavated soil and sand in the ground onto the ground. CONSTITUTION: An auger casing 3, in which screw projecting strips 4 are annexed on the whole upper-lower peripheral surfaces, is continuously connected integrally to the upper section of an auger head 1 having head excavating blades 2 at a front end section while beltlike rotary rings 6 are fitted movably on the peripheral surface of the auger casing 3 in a freely slipping manner. A mortar feed-infect pipe 10 is penetrated to the axial center section of the auger casing 3, and the mortar feed-infect pipe 10 is communicated and formed to a mortar jet 9 opened at the front end of the auger head.  When a pile pit is excavated into the ground by using an improving device for such a foundation ground, the beltlike rotary rings 6 movably fitted between the projecting strips 4 are slipped because the beltlike rotary rings 6 are pressed strongly by the earth-pressure resistance of cut-open soil in the cut-open soil to be lifted on the ground. The rotary rings 6 prevent the lifting of soil to be lifted, and soil stays and accumulates near the beltlike rotary rings 6, thus firmly consolidating soil on a pit peripheral wall.
Patent JP-H06329913-A (JP)
Title: Room-temperature-curable organopolysiloxane composition
Inventor: YAMAMOTO YASUSHI
IPC: C08K5/54
Filed: 1993-05-26
Abstract: PURPOSE:To obtain a composition which, even when used in an outdoor application, is effectively reduced in the fouling of the surface of the cured composition obtained therefrom and in the fouling of the surroundings, by mixing a specific diorganopolysiloxane with a specific organosilicon compound and a specific fluorinated polyether-modified siloxane. CONSTITUTION:The composition comprises a diorganopolysiloxane whose molecular chain is blocked with a hydroxyl group at each end, an organosilicon compound having at least two Si-bonded hydrolyzable groups per molecule or a partial hydrolyzate of the compound, and a fluorinated polyether-modified siloxane represented by the formula (wherein R<1> and R<2> each is a 1-8C (un) substituted monovalent hydrocarbon group; R<3> is a 1-8C divalent hydrocarbon group which may have an ether, amide, or amino group; R<4> is a 1-8C divalent hydrocarbon group; Q is an alkyl ether group; Rf is a perfluoroalkyl or a perfluoroalkyl ether group; and n is 1-3).
Patent JP-S635327-A (JP)
Title: Fabry-perot resonator
Inventor: TSUCHIYA JUN
IPC: G02F1/21
Filed: 1986-06-25
Abstract: PURPOSE:To eliminate the necessity of any mechanically movable section and attached facilities, such as pump, bomb, motor, etc., by filling at least the space between half mirrors with liquid crystal and installing electric field forming means to the half mirrors. CONSTITUTION:At least the space between half mirrors 1a and 1b is filled with liquid crystal 4. Moreover, electric field forming means, for example, electrodes 6a and 6b are respectively installed to the half mirrors 1a and 1b and the electrodes 6a and 6b are connected with a power source. When the voltage is variously changed, the resonating wavelength can be changed and the refractive index of the liquid crystal changes in accordance with the change in intensity of the electric field resulting from the fluctuation of the voltage. As a result, the resonating wavelength is also changed and the change in resonating wavelength can be confirmed from the intensity of the transmitted light. Therefore, the necessity of any mechanically movable section and attached facilities required for the movable section can be eliminated.
Patent JP-H09327647-A (JP)
Title: Slot type fluid coating apparatus
Inventor: MORI HIDEKI
IPC: B05C5/02
Filed: 1996-06-10
Abstract: PROBLEM TO BE SOLVED: To apply a smooth and uniform coating material even onto a warped sheet matter to be coated by providing a coated matter holding drum for fixing the sheet matter on a rotatable curved face to rotate the sheet matter. SOLUTION: A holding drum 33 is rotated, and a matter 30 to be coated is pushed by an opposing roller 34 at the same time and made to pass through a thickness measuring section 35 to collect data on thickness of the matter to be coated. Before the matter to be coated passes through the measuring section 35, suction is made by an evacuating section 36 of the holding drum 33 to assure further closer contact with the matter 30 to be coated and is fixed by a matter-to-be-coated holding craw 37. Then, coating material (L) fed from a coating material extruding device 41 is applied onto the matter 30 to be coated by a coating head 42 clearance of which with respect to the matter to be coated is controlled according to data from the thickness measuring section 35.  The warped matter 30 to be coated is made to conform to and be fixed to the holding drum 32 by the holding craw 37, the opposing roller 34 and suction so as to correct warp and beat of the coating material (L) is stabilized.
Patent JP-H09328989-A (JP)
Title: Catchment pipe embedding method
Inventor: TATSUHARA TAKESHI
IPC: E21D9/06
Filed: 1996-06-10
Abstract: PROBLEM TO BE SOLVED: To allow catchment without requiring a number of catchment pipes to prevent the liquefaction of a sand ground. SOLUTION: A pilot pipe 12 is curvedly driven from a departure into a ground until its end arrives at a destination and a drill pipe 13 capped on the outside of the pilot pipe 12 is driven until its end arrives at the destination or the departure. A catchment pipe formed by winding a small pitch of wire rod on the outer periphery of a core material cylindrically arranged at a space is connected to the end of the drill pipe 13, the drill pipe 13 is pulled to the departure or the destination to draw the catchment pipe 1 into the ground and then the pilot pipe 12 is extracted.
Patent JP-H05343363-A (JP)
Title: Dry etching method
Inventor: IMAI HIROSHI
IPC: H01L21/302
Filed: 1992-06-08
Abstract: PURPOSE:To accurately process a fine pattern by controlling a metal thin film and particularly a film of a laminated structure in a satisfactory sectional shape. CONSTITUTION:A laminated film formed of a tungsten(W) film 5, a titanium nitride (TiN)film 4 and a titanium(Ti) film 3 is dry etched by using mixture gas of ClF3 and N2 (N2 is mixed by 30% by volume) by a reactive ion etching(RIE) method. As an etching mask, a pattern of a photoresist 6 is used. In this case, a substrate temperature is held at -20 deg.C.
Patent JP-H03106428-A (JP)
Title: Vertical mixer
Inventor: RORUFU HONEMEEYAA
IPC: B01F15/00
Filed: 1990-06-05
Abstract: PURPOSE: To enable easy and rapid washing by making a cap freely swivelable and freely tiltable and horizontally dividing a vessel to make this vessel dividable to a lower portion of the vessel in contact with its bottom and an upper portion removable from the lower portion. CONSTITUTION: This mixer is provided with the vessel 20 of a cylindrical shape and the freely removable cap 50 for hermetically sealing the front surface of the vessel 20. The cap 50 is coupled to lifting devices 68, 72, 74 in order to lift the cap from the vessel 20. The cap 50 is made freely horizontally swivelable and freely tiltable around a horizontal shaft 92 in accordance with the lifting devices described above. The vessel 20 is divided according to a horizontal plane 94 so as to comprise the lower portion 96 of the vessel in contact with the bottom 40 and the upper portion 98 of the vessel which is removable from the portion 96, may be snap opened or is horizontally swivelable. Consequently, the simple and rapid washing of the perpendicular mixer is made possible.
Patent JP-S63311109-A (JP)
Title: Method for discriminating crest shape of key by image processing
Inventor: NOBUNAGA TAKEHISA
IPC: G01B11/24
Filed: 1987-06-13
Abstract: PURPOSE:To efficiently perform highly accurate inspection, in picking up the image of the crest and valley parts of a key by a sensor camera, by setting a window at the position to be measured in a software manner to perform image processing. CONSTITUTION:When the images of the crest part 10 and valley part 9 of a key 1 are picked up by a sensor camera 3 constituted of an image pickup element group, slit like windows 7 are set to the crest part 10 and valley part 9 of the key 1 being the positions to be measured in a software manner to perform image pickup. The shade generated by blocking the windows 7 by the crest part 10 and valley part 9 of the key 1 is caught as the change in the quantity of beam to be taken out as a dimension signal and this signal is subjected to image processing. Therefore, it is unnecessary to move the key 1 and, since the dimensions of the crest part 10 and valley part 9 of the key 1 are simultaneously measured with high accuracy, a large number of the keys can be inspected efficiently with high accuracy.