baber/WOPTO huggingface dataset:
Patent JP-H01160377-A (JP)
Title: Controlling circuit of inverter
Inventor: KOSHIN HIROAKI
IPC: H02M7/537
Filed: 1987-12-15
Abstract: PURPOSE:To reduce the riskness of a simultaneous ON by making cascade connection of a plurality of inverter buffers and establishing a dead time by using a delay time of its signal transfer. CONSTITUTION:A full-bridge type inverter is so constituted that series circuits of FETs Q1, Q2 and Q3, Q4 are provided to DC current Vin respectively in parallel and that a load L is connected to each FET inter-node, and switchings of FETs Q1-Q4 are made by the output of a controlling circuit 1. At this time, a dead time that control signals inputted to the controlling circuit 1 are together reduced to a low level is established at a plurality of inverter buffers 11-15 which are connected in series and at 'AND' gates AND1-AND2. The buffers 11-15 make cascade connection with an input terminal Pin to which input signals are inputted, and said signals are subsequently inverted. The buffer output is supplied to each of transistors Q5-Q6 and an 'AND' circuit, is inputted to the controlling circuit 1, and a dead time is set.
Patent JP-H04186317-A (JP)
Title: Liquid crystal display element
Inventor: KIMURA YOICHI
IPC: G02F1/1337
Filed: 1990-11-21
Abstract: PURPOSE:To form a film free from coloration at a relatively low temperature in a short time and suppress the influence applied to a substrate, color filter, transparent electric conductive film, etc. and improve reliability by using the polyamide resin having specific repetitive units for the orientation control film of a liquid crystal display element. CONSTITUTION:The orientation control film of a liquid crystal display element is constituted of the polyamide resin having the repetitive unit shown by the formula I. In the formula I, R' is a bivalent residual group which is the result of removing the amino group from diamine. The polyamide polymer can not be dissolved in liquid crystal and water, and this polymer is dissolved into a specific solvent, and applied on a substrate, and after heating drying, the orientation control film is obtained after rubbing. Accordingly, coloration is prevented, and the film can be prepared at a relatively low temperature in a short time, and no influence is given to the substrate, color filter, transparent electric conductive film, etc., and the superior contrast and visual characteristic can be obtained without reducing yield, and the liquid crystal display element having the high reliability for a long period free from the generation of the orientation disorder even after the heat treatment for a long period can be obtained.
Patent JP-H02160678-A (JP)
Title: Production of porous ceramic structure
Inventor: YAMAMOTO TOSHIHIRO
IPC: C04B38/00
Filed: 1988-12-15
Abstract: PURPOSE:To obtain a high-purity porous ceramic structure in high yield in production of the porous ceramic structure by the method of attaching a ceramic slurry to a base material comprising a resin structure to be consumed by fire, by adding a colloidal ceramic precursor to the slurry. CONSTITUTION:A base material comprising a resin structure such as urethane foam is prepared. On the other hand, a ceramic raw material such as alumina is mixed with a solvent such as water, a binder of organic polymer and a surfactant and further blended with a ceramic precursor in a sol state to be characterized by ultrafine ceramic particles or inorganic polymer to give a ceramic slurry. The slurry is impregnated to the surface of the base material, stuck, dried and calcined. In the operation, the precursor is gelatinized by treatment such as drying to show dry strength, polycondensation takes place between sol gelatinized at the initial age of calcination, bonding between the ceramic raw material and the gel or bonding between the gels occurs to secure strength. Consequently, a high-purity product is obtained without reduction in yield caused by collapse of ceramic part.
Patent JP-H08170745-A (JP)
Title: Relief valve
Inventor: SAWANOBORI OSAMU
IPC: F16K17/04
Filed: 1994-12-20
Abstract: PURPOSE: To provide a relief valve at low cost which has a small size and excellent characteristics. CONSTITUTION: An elastic member 16 which is arranged between a valve body 4 and a support member 6 is composed of a large diameter spring 20, a small diameter spring 21, and a connection member 22 connecting them to each other. A specified length part of the small diameter spring 21 is housed in the large diameter spring 20.
Patent JP-H06163719-A (JP)
Title: Manufacture of semiconductor device
Inventor: OKABE KATSUYA
IPC: H01L21/768
Filed: 1992-11-26
Abstract: PURPOSE:To suppress the generation of silicon nodules by providing a laminated structure of pure Al and Al-Si. CONSTITUTION:A contact hole is formed. A thin, pure Al layer 13 and an All-Si layer 14 are sequentially formed on the entire surface. The pure Al layer 13 and the Al-Si layer 14 undergo hot etching at the same time, and a first-layer electrode wiring 5 is formed. Annealing is performed, and the ohmic junction is formed.
Patent JP-H05127664-A (JP)
Title: Keyboard device
Inventor: NAGUMO SHINJI
IPC: G10C3/12
Filed: 1991-11-05
Abstract: PURPOSE:To prevent a state wherein a defective in contacting between a movable contact and a fixed contact is caused since dust and water do not enter the gap between an elastic swell part and a circuit board fixed on a keyboard chassis even when entering the device from gaps between keys. CONSTITUTION:The keys 16 are fixed directly on plural elastic swell parts 15, so even if the dust, water, etc., enter the device from the gaps between the keys 16, neither the dust nor the water intrudes the gap between the elastic swell part 15 and the circuit board 13 fixed on the keyboard chassis 12 to prevent the state wherein the contacting defect between the movable contact 17 formed on the reverse surface of the elastic swell part 15 and the fixed contacts 18 and 18 formed on the circuit board 13 is caused.
Patent JP-H09131756-A (JP)
Title: Insert molding method
Inventor: KATOU AKITSUGU
IPC: B29C45/14
Filed: 1995-11-09
Abstract: PROBLEM TO BE SOLVED: To correctly position a decorative sheet in a mold by positioning the decorative sheet by using a protrusion of the mold, in a method wherein a molding body is produced by arranging the decorative sheet along an inner face of a mold cavity and connecting the decorative sheet to the outer face. SOLUTION: In an insert molding method, a decorative sheet is arranged along an inner face of a mold cavity 15, molds 13 and 14 are closed, and a melting resin is injected into the cavity so as to produce a molding body having the decorative sheet connected to the outer face. At the lower mold 14 where a block 57 to be conformed to an opening 56 of the decorative sheet is slidably held, a protrusion 67 is provided so as to protrude to its surface. The protrusion 67 is engaged with a slotted hole 66 of the decorative sheet and a large number of small-diameter small pins 69 are planted on the surface of the mold 14. These pins 69 are engaged with the small holes of the decorative sheet. Thus, the decorative sheet can be connected to a correct position on a molding, thereby improving mass production property.
Patent JP-2000144570-A (JP)
Title: Warp-dividing device in warp-sizing machine
Inventor: AOKI KATSUMI
IPC: D06B3/04
Filed: 1998-11-09
Abstract: PROBLEM TO BE SOLVED: To facilitate the supply of a suitable amount of water to a sized warp, and to prevent a trouble that large water drops are adhered to the sized non-dried warp. SOLUTION: A pair of rotary shafts 6 and a cam shaft 7 are supported on a pair of fixed frames 5 through bearings 8 in a state crossing the fixed frames 5, and a support frame 10 is loaded on rollers 9 fixed to both the ends of the rotary shafts 6. The cam shaft 7 is driven with a motor 16 for traverse, and the support frame 10 is reciprocatively moved in the longitudinal direction of a dividing rod 4 through the eccentric cam 12 fixed to the cam shaft 7 and cam guides 13 fixed to the support frame 10. The dividing rod 4 is supported on the support frame 10 through brackets 19, 20. The driving rod 4 is rotated at a slow rotation rate through a driven gear 28 and a driving gear 29 driven with a motor 32, and simultaneously reciprocatively moved in the direction orthogonal to the travel direction of the warp at a larger stroke than the pitch of the warp.  Cooled water is allowed to flow in the dividing rod 4.
Patent JP-H11150121-A (JP)
Title: Semiconductor device and fabrication thereof
Inventor: NASHIMOTO YASUNOBU
IPC: H01L29/808
Filed: 1997-11-19
Abstract: PROBLEM TO BE SOLVED: To provide a semiconductor device which is satisfactory in high frequency characteristics and suitable for junction-type FET(field effect transistor) with decreased the gate series resistance. SOLUTION: A semiconductor device comprises a multilayered structure A of a first undoped semiconductor layer 2, a first first conductivity-type semiconductor layer 3 and a second updoped semiconductor layer 4 which are sequentially grown on the surface of a semiconductor substrate 1 having upper surface 4a and a side face 3a intersecting the upper surface 4a and exposing a part of the first first conductivity-type semiconductor layer 3, second conductivity- type semiconductor layer 5 making contact with the multilayered structure A on the side face thereof, drain and source electrodes 7, 8 arranged on the opposite sides of the first first conductivity-type semiconductor layer 3 and the second conductivity-type semiconductor layer 5 which comes into ohmic contact with the second conductivity-type semiconductor layer 5,  and a gate electrode 9 which comes into electrical ohmic contact with the fist first conductivity-type semiconductor layer 3. A second first conductivity-type semiconductor layer is provided, while making contact with the first first conductivity- type semiconductor layer 3, and the gate electrode 9 is formed thereon.
Patent JP-H08181580-A (JP)
Title: Clock changeover circuit
Inventor: SEKINE YASUYOSHI
IPC: H03K5/19
Filed: 1994-12-21
Abstract: PURPOSE: To eliminate an output clock interrupt state for a discrimination period by adding a resonance section and a clock generating section to an input clock and keeping the clock longer than a time required for abnormity discrimination to the input clock. CONSTITUTION: A resonance signal 105 obtained by resonating a 1-system input clock signal at a resonance section 3 is converted into a clock signal by a clock generating section 5 to obtain a resonance clock signal 107 for holding four periods of the 1 system input clock signal. Since a 2-system input clock signal is normally received, a 2-system input monitor section 2 provides an output of a 2-system input state signal 104 as a normal state and a resonance clock signal 108 is obtained via the resonance section 4 and the clock generating section 6. Furthermore, a clock selection section 9 outputs an output clock signal 111 resulting from the signal 108 in place of the signal 111 resulting from the signal 107 based on the selection signal 110. Then the clock signal is held longer than the time required for abnormity discrimination of input monitor sections 1, 2.
Patent JP-H06163623-A (JP)
Title: Bonding wedge
Inventor: OKUBO KEIICHIRO
IPC: H01L21/60
Filed: 1992-11-27
Abstract: PURPOSE:To avoid forming a flaw, caused by pressurize, at the wire part that tightly contacts to a corner on the wire supply side of a groove part when a rather thick wire is supplied and guided at the groove part far wire guide at the bottom surface, and then the bottom surface is pressed to a to-be-bonded surface far banding. CONSTITUTION:Relating to a banding wedge 8, having a wire guide groove part 8b at a bottom surface 8a, with which bonding is performed by pressing the bottom surface 8a to a to-be-bonded surface 7, while a wire 9 is supplied, from above, and guided to the groove part 8b, a wire supply side corner part 8d at an upper bottom part of the groove part 8b is chamfered, to an R-shape, for rounding.
Patent JP-H07174980-A (JP)
Title: Microscope stage
Inventor: HASEGAWA KAZUHIRO
IPC: G02B21/26
Filed: 1993-12-17
Abstract: PURPOSE:To provide a microscope stage having an improved adjusting mechanism concerning the tilt angle an the bearing of an observed sample with reference to the optical axis of an objective lens. CONSTITUTION:This microscope stage is provided with an X-moving body 3 and a Y-moving body making a sample placing base 4 respectively movable in directions X and Y which orthogonally cross each other, and, equipped with two fixed pins for positioning 6a and 6b to which two adjacent sides of a preparation 5 placed on the placing surface 4a of the sample placing base are pressed, a pressing member 7 turning the preparation 5 with two fixed pins for positioning as fulcra, and a regulating member 6c regulating the turning of a sample caused by the pressing of the pressing member 7.
Patent JP-H01157318-A (JP)
Title: Formation of instant flower bed
Inventor: ITO TAKAMI
IPC: A01G9/02
Filed: 1987-12-15
Abstract: PURPOSE:To keep a flower in an excellently irrigated state, by covering the circumference of a flower stock with a water-retaining covering material, putting the covered flower stock into a flower stock holding tool, thrusting the covering material into the opened circumference of the holding tool to engage the material with the tool and arranging the tools in a row. CONSTITUTION:A covering material 2 made of rock wool is wound around the circumference of a flower stock 1 composed of a flower F and a culture soil G to obtain a covered flower stock. A pot-like tool 7 for holding a flower stock is provided with a top-opened insertion hole 3 for flower stock, a bottom part 4 and a plurality of wide opened parts 6 on the circumference. A number of the holding tools 7 are integrated to form a base material 9 for forming an instant flower bed and a number of the base materials are prepared beforehand. The covered flower stock is inserted into each flower stock-holding tool 7 of the base material 9 and the coating material 2 of the flower stock is thrust into each opened part 6 of the holding tool 7.
Patent JP-H01211894-A (JP)
Title: Reverse phase control dimming circuit
Inventor: NIKORASU EFU MEIARU JIYUNIA
IPC: H05B39/04
Filed: 1988-12-16
Abstract: PURPOSE: To statically perform dimming of an incandescent lamp by a method in which an AC power source feeds power to an incandescent lamp load by using a switch means which is operatively connected when a source voltage is nearly equal to a load voltage and which is operatively disconnected for each half cycle after a specified time elapsed, or when an applied voltage is exceeded. CONSTITUTION: The charging of a capacitor C5 initiates an event to determine an opening time of main switches Q1 and Q2. During this charging, the main switches Q1 and Q2 are closed to feed power to a load. If a source voltage falls below a rated value, a time load power is dropped, and thereby the charging speed of the capacitor C5 is lowered so that the main switches Q1 and Q2 are opened after some delay, and hence an area below a load voltage versus time curve is nearly constant. On the other hand, if the source voltage exceeds the rated value, the operation is reversed in sequence so that power fed to the load is nearly constant. Consequently, the value of dP/dV is not more than approximately 1% to reduce lamp sounds and electromagnetic interference.
Patent JP-H01158016-A (JP)
Title: Water-resistant flexible film
Inventor: OISHI TSUKASA
IPC: C08F20/26
Filed: 1987-12-15
Abstract: PURPOSE:To obtain the title film, consisting of a specific oxyalkylene group- containing vinyl alcohol based polymer film and having both properties of water resistance and flexibility while holding aroma retaining properties, transparency, oil resistance, antistatic properties, oxygen cutoff properties, heat insulating properties, etc. CONSTITUTION:The aimed film consisting of an oxyalkylene group-containing vinyl alcohol based polymer film having >=55 deg.C dissolution temperature in water and <=2.0X10<3>kg/cm<2> 10% Young's modulus at 20 deg.C and 50% RH. Furthermore, the above-mentioned polymer is preferably a saponified copolymer of an oxyalkylene group-containing ethylenically unsaturated monomer expressed by the formula-[CHR-CHR'-O-]nH (R and R' are H or alkyl; n is a positive integer) and vinyl acetate.
Patent JP-H09162880-A (JP)
Title: Cell phase synchronization protection circuit
Inventor: ABIRU SETSUO
IPC: H04L1/22
Filed: 1995-12-07
Abstract: PROBLEM TO BE SOLVED: To protect cell phase synchronization even if the lack of one cell and the overlap of the calls occur, to restore synchronization after a protection period terminates and to reduce the occurrence of fluctuation at cell intervals by means of re-synchronization by receiving the output of a cell comparison means and controlling the phase synchronization of the cells in a cell phase synchronization means. SOLUTION: The cells of a '0' system and a '1' system, which are outputted from the cell phase synchronization part 1, are inputted to the cell comparison part (1) 2, and data of the cells of the both systems are compared. Then, whether they are matched or not is judged. The output is inputted to an output selection part 3 and either output is outputted as a present system output and the other as a standby system output with output system selection signals from outside. The cell comparison part (2) 11 compares the output cell of the standby system and the output cell obtained by delaying the output cell of the active system by one cell in a cell buffer 12. The output is inputted to a read control part 10 in the cell phase synchronization part 1 and the read control part 10 receives the output and executes a processing for restoring synchronization within the synchronization protection period.
Patent JP-H08174961-A (JP)
Title: Explosion-proof type printer
Inventor: SHIMADA YOSHIAKI
IPC: B41J29/13
Filed: 1994-12-22
Abstract: PURPOSE: To improve the efficiency in use by fitting a power application part in a pressure-resistant case and setting respective clearances between respective through-holes, in which a driving shaft and an operation lever of a drive motor run through the outside of the pressure-resistant case and the driving shaft and operation lever to be an explosion-proof stricture in the width and depth required fro the pressure-resistant explosion-proof. CONSTITUTION: When output shafts 21 of drive motors 2 and 6 are rotated, an input shaft 45 running through a storage case 28 is rotated through a transmission belt 46. Following the rotation, a hammer 76 is rotated to typewrite on a printing paper 30 by means of character molds 73 of a typewriter wheel 7 and print the weight of LPG. Simultaneously a ratchet 64 gets in mesh with a ratchet wheel 62 and is revolved to feed the printing paper 30 held by feed rollers 60 and 61 out of a feed outlet 35. At that time, drive shafts of drive motors 2 and 6 are inserted into through-holes formed on a pressure-resistant case 4, and the width and depth of the clearances between through-holes and drive shafts are set in compliance with the requirement for the pressure-resistant explosion-proofness, by which a printer is allowed to be set in a flammable atmosphere.
Patent JP-H04188413-A (JP)
Title: Magnetic head
Inventor: MUKAIDE NORIAKI
IPC: G11B5/265
Filed: 1990-11-22
Abstract: PURPOSE:To prevent the leakage of magnetic flux to a closed magnetic circuit for read/write by composing a gap spacer forming a magnetic gap for erase of a magnetic material having saturation magnetic flux density lower than a ferromagnetic body and permeability higher than the ferromagnetic body. CONSTITUTION:A gap spacer 12 forming a magnetic gap g2' for erase is constituted of a magnetic material having saturation magnetic flux density lower than a ferromagnetic body such as ferrite organizing a core chip 1 and permeability higher than the ferromagnetic body. Since the magnetic gap for erase consists of the magnetic material having saturation magnetic flux density lower than the ferromagnetic body when information is recorded by a magnetic gap read/write, write by the magnetic gap for erase, i.e., erase action, is enabled sufficiently in practice. Since the magnetic gap for erase is made up of the magnetic material having permeability higher than the ferromagnetic body when information is reproduced by the magnetic gap for read/write, the magnetic gap for erase is brought to a magnetically short-circuited state. Accordingly, the generation of magnetic flux by the magnetic gap for erase is inhibited, thus reducing the leakage of magnetic flux to a closed magnetic circuit for read/write as low as possible.
Patent JP-H02165816-A (JP)
Title: Roll of straightening machine for shape steel
Inventor: KAWANAKA TSUNAO
IPC: B23K9/04
Filed: 1988-12-16
Abstract: PURPOSE:To prevent rolling flaws from occurring and the sides of the roll body from being press-contacted with a product by providing a hardened layer obtained by cladding by plasma welding high alloy powder on the external peripheral part of a roll body and fitting and fixing cast circular plates to the sides of the roll body. CONSTITUTION:A shape steel 16 having a web 14 and flanges 15 is straightened by the roll 10. The roll body 12 is made of steel and the hardened layer 17 obtained by cladding by plasma welding high alloy powder of high speed steel material, etc., is formed on its external peripheral part. Cast circular plates 19 are fitted and fixed to the annular recessed parts formed on the sides of the roll body 12 so that the flange edges 15A of the shape steel 16 come in contact with it. Nodular graphite cast iron, for example, is used for casting material.
Patent JP-H11152390-A (JP)
Title: Epoxy resin composition and preparation thereof
Inventor: HIKITA SHINYA
IPC: C09D163/00
Filed: 1997-11-20
Abstract: PROBLEM TO BE SOLVED: To provide an epoxy resin composition which exhibits performance such as adhesion strength, independent of the curing temperature, without deteriorating the mechanical properties or heat resistancde which are inherent is the epoxy resin, and a preparation method therefor. SOLUTION: The epoxy resin composition contains an A-B type block copolymer comprising a polymer segment A formed out of (meth)acrylonitrile and a polymer segment B formed out of at least one (meth)acrylate ester represented by the formula (wherein, R1 is hydrogen or methyl group; R2 is an aliphatic hydrocarbon group). Preferably, the solubility parameter value of the polymer segment A, calculated from the Fedors equation, is 10 or larger and the glass transition temperature of the polymer segment B is 25 deg.C or lower.
Patent JP-H02166396-A (JP)
Title: Cushion plunger for archery
Inventor: YAMAZAKI YASUNAGA
IPC: F41B5/22
Filed: 1988-12-20
Abstract: PURPOSE:To provide a proper function in which the arrow is prevented from being pressed back strongly to the opposite side after buffer action by providing a piston capable of reciprocating action while it is under the resistance of a fluid in the main body of a cylinder and constituting with fluid damper that is provided so as to return the piston slowly to the starting position. CONSTITUTION:A piston 22 slides and returns to its starting position by the spring action of a return spring 27. While this return motion of the piston 22 is made, the spring force of the return spring 27 is set at a small value and the outside air enters into a chamber only through a vent hole 25 so that the piston 22 does not return quickly but returns slowly. Accordingly with a cushion plunger 13 of such constitution the return motion of the piston 22 is slow and no reaction force is applied to the arrow and it is possible to damp the amplitude of the hunting motion of the arrow.