baber/WOPTO huggingface dataset:
Patent JP-2001119025-A (JP)
Title: Semiconductor element and forming method therefor
Inventor: KITAHATA MAKOTO
IPC: H01L29/423
Filed: 1999-10-21
Abstract: PROBLEM TO BE SOLVED: To solve the problem where an insulated-gate semiconductor element that is oxidized by forming a trench structure on an α-SiC(0001)Si plane cannot efficiently apply electric field to a channel region while keeping high breakdown voltage, and the damage from ion implantation remains at a channel region, when the insulation-gate-type semiconductor element containing the channel region of a planar type is formed and hence high mobility cannot be realized. SOLUTION: In the insulated-gate semiconductor element, an n-type layer 32 grown on an n-type SiC substrate 31 and a p-type layer 33 which in turn is gown on the layer are contained, an n-type part 34 where semiconductive properties have been changed by performing, for example, ion implantation and heat treatment exists at one portion of the p-type layer 33, and at least one portion of the n-type part 34 is connected electrically to the n-type layer 32.
Patent JP-2000123486-A (JP)
Title: Recorder
Inventor: NOGUCHI TADASHI
IPC: H04N9/79
Filed: 1998-10-21
Abstract: PROBLEM TO BE SOLVED: To prevent the deterioration of sound quality by judging whether digital audio signals are a prescribed signal form or not, and recording digital audio signals inputted into an input signal terminal in place of digital audio signals wherein analog audio signals are converted into digital signals when the digital audio signals are a prescribed signal form. SOLUTION: Whether encoded digital audio signals ADC1 which are inputted into an encoded digital audio input terminal 103 of audio input terminals of two systems are a signal form capable of decoding with an audio decoder 13 or not is judged. When the encoded digital audio signals can be decoded, encoded digital audio signals ADC1 which are inputted into the encoded digital audio input terminal 103 are selected, multiplexed with encoded digital video signals VDC and recorded in a DVD: 9. When the encoded digital audio signals can not be decoded, signals which are inputted into an analog audio input terminal 102 are selected, multiplexed and recorded.
Patent JP-H11133620-A (JP)
Title: Printing plate exposure device utilizing inclination distortion negating signal
Inventor: OKAMURA YUICHI
IPC: G02B26/10
Filed: 1997-10-31
Abstract: PROBLEM TO BE SOLVED: To eliminate distortion that a recorded image is inclined to a printing plate in the case of spirally recording image information from a computer on the printing plate wound round a drum in the band width of plural picture elements. SOLUTION: This device is constituted of the printing plate 4 right cylindrically wound round the drum 2, an exposure device recording the image information in a band state on the printing plate with a light beam, a moving mechanism H relatively moving the exposure device to the drum by one band width in a drum shaft direction while the drum 2 is rotated once, and a circuit generating a saw-toothed inclination distortion negating signal in the same cycle as the rotating cycle of the drum 2 with the write starting time of the band as a start point. The inclination distortion negating signal is applied on the exposure device so as to sequentially deflect the light beam in a direction reverse to the moving direction of the mechanism H until the light beam is deviated by one band width while the drum 2 is rotated once.
Patent JP-H04173920-A (JP)
Title: Production of low-yield-ratio thick high-strength steel plate
Inventor: DEKI HISATAKA
IPC: C22C38/00
Filed: 1990-11-07
Abstract: PURPOSE:To produce a low-yield-ratio thick high-strength steel plate without a tempering stage by successively applying hot rolling, soaking and cooling to a steel having a specified content of B under specified conditions. CONSTITUTION:A steel contg., by weight, 0.01-0.20% C, 0.05-0.50% Si, 0.30-2.50% Mn, 0.20-3.00% Ni, 0.20-1.00% Cr, 0.05-0.80% Mo, <=0.002% Al, 0.0003-0.0050% B, 0.005-0.015% Ti, <=0.0040% N and the balance Fe and inevitable impurities, where 3.0N<=Ti<=4.0N, is heated to 1000-1300 deg.C, hot-rolled and reduced at >=40% draft at a temp. ranging from the Ar3 point to 900 deg.C. The steel is held at a temp. ranging from the Ar3 point to the rolling end temp. for 10-60sec, cooled to a temp. ranging from 300 deg.C to the martensite transformation start temp. (Ms point) and then air-cooled. Consequently, a thick steel plate having about 80kgf/mm<2> tensile strength, <=about 85% yield ratio, excellent strength and toughness and having >=about 50mm thickness is obtained.
Patent JP-H02146191-A (JP)
Title: Semiconductor integrated circuit
Inventor: KONDOU ICHIRA
IPC: G11C17/00
Filed: 1988-11-28
Abstract: PURPOSE:To increase a reading out speed and to eliminate that the deterioration of a nondefective ratio is brought about by arranging writing voltage impressing switching circuits at both sides of a nonvolatile semiconductor memory array so that one writing voltage impressing switching circuit can be provided for each row selecting line. CONSTITUTION:Row selecting circuits 101 are arranged and connected to both sides of respective row selecting lines and highly speedily charge and discharge the selected and non-selected row selecting lines. Further, while writing voltage switching circuits 106 for odd number row selecting lines are arranged and connected to the left side of an array 105, circuits 106 for even number row selecting lines are arranged and connected to the right side of the array 105. According to the above-mentioned arrangement, it becomes sufficient to arrange the circuit 106 for one row selecting line for a width for two row selecting lines, no excess work is executed for designing a layout, and a high speed operation can be executed. In the operation of each circuit 106, at its writing operation time, one row selecting line is selected by the circuit 106, and the outputs of inversion circuits 114 and 116 become ground potential, a circuit 115 is turned on, writing voltage is impressed to the selected row selecting line, and non-selected lines are kept in the ground potential by the power-supply voltage of the circuit 101. At its reading out operation time, the voltage the same as that of the circuit 101 is given to a writing power source, and the voltage and the potential of the row selecting lines become the same.
Patent JP-H0819551-A (JP)
Title: Self-sealing type flexible elastic valve, and trocar assembly in which said valve is integrated
Inventor: BAANAADO JIEI DAAMAN
IPC: F16K15/14
Filed: 1994-11-10
Abstract: PURPOSE: To enable to carry out proper sealing every time to the surface of a surgical apparatus, by equipping a neighboring pair of sealing wall parts extended form a wall and facing each other to define an S-shaped slit in a selfsealing valve used together with a trocar assembly necessary for laparoscopic surgical treatment. CONSTITUTION: This selfsealing valve 20 has a circular flange 21 with a dome shaped part 32 which has an opening 22 around the center line of the valve 40. The opening 20 is made so as to be extended by the flexibility of the valve 20 when a surgical apparatus such as a trocar plug, etc., is inserted through the opening 20. A cylindrical wall part is extended from a flange 21 to define a cylindrical opening, a pair of walls 25, 26 for sealing in a cone shape as a whole are extended form a cylindrical wall part and ended at distal end side terminals 27, 28 for sealing to form an S-shaped slit 29. The valve 20 is used in a trocar apparatus to supply and keep gas pressure during any laparoscopic surgical treatment.
Patent JP-H063287-A (JP)
Title: Method and apparatus for judging effect of thread defect on textile
Inventor: MATSUSE HIDEKI
IPC: D06H3/08
Filed: 1992-09-30
Abstract: PURPOSE: To determine the effect of yarn defects on textile easily and economically as much as possible. CONSTITUTION: Parameters of twisted yarn 5 relevant to the volume and surface are inspected by a measuring mechanism 4 in a first stage. The parameters are converted into gray scale values or tristimulus values in a second stage and these values are matched with picture elements. The picture elements are reproduced on a screen or a printer in the final stage. Consequently, the image of a textile to be produced from the yarn 5 to be inspected can be simulated.
Patent JP-H07153060-A (JP)
Title: Magnetic disc substrate and magnetic disc employing the substrate
Inventor: KUROMIYA YOSHIYUKI
IPC: G11B5/82
Filed: 1993-11-30
Abstract: PURPOSE:To make track pitches finer and increase a recording density further. CONSTITUTION:A magnetic disk substrate 1 which has an optimum thickness, has an unevenness on a servo-mark forming part 6, has protrusion formed in recording track forming part 7 and has recesses formed in guard band forming part 8 is formed by injection molding of thermoplastic norbornane system resin. A magnetic layer is formed on the magnetic disc substrate 1 uniformly and its parts on the recesses of the above-mentioned servo-mark forming part 6 and its parts on the protrusions of the servo-mark forming part 6 are magnetized in directions opposite to each other. With this constitution, a magnetic disc showing low moisture absorption and little deformation is obtained. Further, as a generated resonance frequency is high, the servo-marks can be read easily. Moreover, the position accuracy of the servo-marks is high, so that a high accuracy tracking can be realized.
Patent JP-H04171982-A (JP)
Title: Formation method of electrode wiring of semiconductor device
Inventor: YOSHIDA KOJI
IPC: H01L21/28
Filed: 1990-11-06
Abstract: PURPOSE:To eliminate a need for executing a plasma etching operation used to remove a silicon residue by a method wherein an aluminum thin film is deposited on an insulating substrate, an aluminum-silicon film is deposited on the aluminum thin film, both films are etched selectively by a wet etching method and electrode wiring is formed. CONSTITUTION:An aluminum film 5 is formed on an insulating film 4 and a polysilicon film 9 by using a sputtering method; in succession, an aluminum- silicon film 8 is deposited. Then, the aluminum-silicon film 8 is coated with a resist 6; the coated resist 6 is patterned by a photolithographic method; the aluminum-silicon film 8 and the aluminum film 5 are etched selectively by a wet etching method; electrode wiring 5A is formed; and lastly, the resist 6 on the electrode wiring 5A is removed. At the same time, the polysilicon film 9 is etched selectively by the wet etching method. Thereby, since the aluminum film 5 is etched at the final stage, a silicon residue is not left on the insulating film 4 and a plasma etching process can be omitted.
Patent JP-H10140131-A (JP)
Title: Liquid composition having controllable viscosity
Inventor: TAKEUCHI HISATO
IPC: A23L29/20
Filed: 1996-11-12
Abstract: PROBLEM TO BE SOLVED: To obtain a viscosity controlling agent which can control the viscosity of a liquid composition according to the different environmental conditions or the condition of use and to obtain such a liquid composition. SOLUTION: This composition contains a compound having two or three or more coordinate-bond-forming moieties and metal ions each of which can form a coordinate bond with each of the above moieties. It increases in viscosity when it takes a structure of a polymer complex formed as a result of coordinate bonds of the moieties of the compound with the metal ions, whereas it lowers in viscosity when the formed polymer complex structure is disintegrated.
Patent JP-H02149350-A (JP)
Title: Grain treatment installation
Inventor: YAMAMOTO SOICHI
IPC: F26B17/14
Filed: 1988-11-28
Abstract: PURPOSE:To build a structure of house inexpensively and simply by assembling integrally a cage-shaped frame encircling the outer periphery of a machine on the outer surface of a machine body of a grain treatment device, installing a roof on the upper surface side of said frame and installing proper outer plates all around. CONSTITUTION:A cage-shaped frame (b) encircling the outer periphery of a machine body is assembled integrally on the outer surface of the machine body of a grain treatment device (a) such as a grain drying device, a husking device, a rice polishing device or the like. A roof (c) is mounted on the upper surface side of said frame (b), and proper outer plates (d) are installed all around. Thus, the frame assembled integrally on the outer periphery of the grain treatment device constitutes a structure of house, and the construction work for the house for accommodating the grain treatment device can be simplified to reduce the cost remarkably.
Patent JP-2000132116-A (JP)
Title: Attaching structure of front plate for image equipment
Inventor: SATO TARO
IPC: G09F9/00
Filed: 1998-10-22
Abstract: PROBLEM TO BE SOLVED: To make minimizable the distance from the end surface of a front plate to the outer edge of a cabinet so as to make realizable a compact design, by disposing an attaching screw inside the periphery of the end surface of the front plate on the rear side of the front plate. SOLUTION: In a front cabinet 1, plural cut-raised parts 7 are arranged at prescribed intervals facing the rear side of a front plate 2. An attaching metal fitting 3b has an L-shape including a side wall 10 and a front wall 9, while plural tongue piece parts 8 are erectly formed inside the side wall 10. After the front plate 2 is put on the front side of the front cabinet 1, the tongue piece parts 8 are inserted into cutout parts 6 formed in the front cabinet 1 such that the tongue piece parts 8 abut on the cut-raised parts 7. Then, the cut-raised parts 7 and the tongue piece parts 8 are respectively connected by attaching screws 14. By this operation, the front plate 2 is firmly and certainly pressed and fixed to the front cabinet 1.  Thereby, a distance from an end surface of the front plate 2 to an outer edge of the front cabinet 1 can be minimized so that a compact design can be realized.
Patent JP-H01142516-A (JP)
Title: Lens system
Inventor: ISHIGURO KEIZO
IPC: G02B7/04
Filed: 1987-11-27
Abstract: PURPOSE:To obtain a lens system which is small in size, light in weight and low in electric power consumption and cost by commonly constituting parts of a lens barrel and lens driving means so that a lens group is directly driven and the superconduction of good energy efficiency is utilized. CONSTITUTION:A superconducting material 2 is used for the lens group driving means which controls the position of the lens group to be used for zooming or a part of the constituting elements of the lens group. The lens group driving means is integral with the lens barrel 1 of the lens system or is a part of the lens barrel. The lens group driving means consists of a lens coupling member 3 which encloses the lens group or a part of the constituting elements of the lens group and the lens barrel 1 of the lens system enclosing the entire part of the lens system. Said driving means drives the lens group or a part of the constituting elements of the lens group in the direction of the optical axis by the magnetic field which the lens barrel 1 of the lens system generates perpendicularly to the face of the lens barrel and the electric current flowing in the lens coupling member 3 in the outside circumferential direction of the lens. The common constitution of the parts of the lens barrel and the lens driving means is enabled by this constitution and the direct driving of the lens group is enabled. In addition, the superconduction of the good energy efficiency is utilized. The lens system which is small in size, light in weight and low in electric power consumption and cost is thereby obtd.
Patent JP-H05137353-A (JP)
Title: Plane driving piezoelectric motor
Inventor: KITANO HITOSHI
IPC: H02N2/00
Filed: 1991-11-15
Abstract: PURPOSE:To make it possible for a moving member to move linearly by forming pointed teeth each having inclined planes on a stator and providing piezoelectric elements to the movable member to allow it to advance or retract so that its detachable coupling parts can engage with or disengage from each of the teeth. CONSTITUTION:The teeth 2 of a stator 1 are formed in quadrangular pyramids each having inclined planes in the directions X and Y. A moving member 3 comprises a plurality of pressure members 5 having actuators (AC) 6 and coupling parts 8 arranged along both edges in the direction X of the support of a flat rectangular member. A plurality of pressure members 4 comprising the ACs 6 and coupling parts 7 are arranged between the arrays of the pressure members 5 along both edges in the direction Y. The motion in the direction X is such that when a voltage is impress on the AC 6a, it is extended so that the pointed end of an X coupling part 7a engages with the interval between the corresponding two teeth 2 of the stator 1. Then, when the AC 6b is extended and the AC 6a is contracted, the X coupling part 7b engages with the inclined planes of the teeth 2 to provide a force by the pressure of the AC 6b, which enables the moving member 3 to advance in the direction indicated by an arrow for movement.
Patent JP-H02188706-A (JP)
Title: Optical fiber coupler
Inventor: GEIRII JIYOO GURIMUSU
IPC: G02B6/28
Filed: 1989-11-21
Abstract: PURPOSE: To prevent the occurrence of microcracks and the occurrence of microbend loss by connecting a tap fiber to a connecting medium having the same refractive index as the refractive index of the clad of an optical fiber bus. CONSTITUTION: The connecting medium 101 fixes the tap fiber 102 to the bus fiber 103 by enclosing the prescribed region on the end face 108 of the tap fiber 102 and the bus fiber 103. The connecting medium 101 has the same refractive index as the refractive index of a clad 104 and the loss through the connecting medium 101 and the clad 104 from a core 107 does not arise in the core 105 in such relation. Since the light from an upstream tap penetrates the clad by several microns alone, the light is not adversely affected by the through-the-clad branch tap and is, therefore, not attenuated. Further, there is no need for forming a tap site by bending the core 105 and the bus may be held straight. As a result, the occurrence of the microcracks is prevented and the occurrence the microbend loss is averted.
Patent JP-H06142420-A (JP)
Title: Solid-liquid separation system
Inventor: SENDA TERUO
IPC: B01D36/00
Filed: 1992-11-11
Abstract: PURPOSE:To perform operation without causing much clogging even when agar-like organism slime is contained in raw water by installing a rotary drum type solid-liquid sparator to which a special filter medium is fitted on the upstream side, installing a hollow yarn membrane filter on the downstream side and installing a transfer pump for transferring liquid filtrate of the solid-liquid separator to the filter on the feed water side. CONSTITUTION:A rotary drum type solid-liquid separator 1 provided with a filter medium 3 of which base material of fabric or knitted goods is napped and on which fluff of extra fine fiber of 1-10mu thickness lies to cover the surface of the base material, and a hollow yarn membrane filter 2 are provided on the upstream side and on the downstream side, respectively. Liquid filtrate of the separator 1 is fed to the filter 2 on the feed water side by a transfer pump 10. To control the transfer pump 10, a means 16 for measuring a level difference DELTAP in the surface of the liquid between the surface of the liquid in the rotary drum 14 and the surface of the liquid filtrate 15 is installed. And when the waste water of the filter 2 is circulated through the raw water feed side of the separator 1, the acquisition rate of purified water is improved. Thus, even when agar-like organism slime is contained in raw water, operation is performed without causing much clogging.
Patent JP-S63154767-A (JP)
Title: Preparation of naphthalocyanines
Inventor: NUMA TATSUYA
IPC: C09B47/04
Filed: 1986-12-19
Abstract: PURPOSE:To prepare naphthalocyanines in a high yield and a high purity under mild conditions, by reacting 2,3-naphthalenedicarboxylic acid (anhydride) with a metal (compound) and urea in the presence of a catalyst in a specified solvent. CONSTITUTION:2,3-Naphthalenedicarboxylic acid of formula I (where X is H, a halogen or an alkyl, aryl, alkoxy, nitro or carboxyl group; and m is 1-6) and/or 2,3-naphthalenedicarboxylic anhydride of formula II (where X and m are the same as above) is reacted with a metal and/or a compound thereof (e.g. anhydrous aluminum chloride) and urea in the presence of a catalyst (e.g. ammonium molybdate) in 1,3-dimethyl-2-imidazolidinone as a solvent to give naphthalocyanines of formula III (where and m are the same as above; M is a metal, a metal oxide or a metal halide). The use of the above-mentioned catalyst makes it possible to produce the title compound in a high yield and a high purity under mild conditions, without requiring high temperatures unlike the conventional methods.
Patent JP-H07126204-A (JP)
Title: Production of alkenyl phenyl ethers
Inventor: TAKEI MASAO
IPC: C07C41/16
Filed: 1993-11-05
Abstract: PURPOSE:To provide a process for producing an alkenyl phenyl ether from a phenolic compound and an alkenyl halide in high yield. CONSTITUTION:An alkenyl phenyl ether can be produced by reacting a phenolic compound with an alkenyl halide in a mixture of water and a ketone in the presence of a phase-transfer catalyst and an alkali.
Patent JP-H01143497-A (JP)
Title: Diaphragm with shell structure
Inventor: SATO TEIICHI
IPC: H04R7/08
Filed: 1987-11-29
Abstract: PURPOSE:To remarkably improve the entire rigidity of a diaphragm by overlapping cone shaped diaphragm raw members formed incorporatedly with plural rugged shells on a cone face in a proper mode and fixing them to form a cone diaphragm. CONSTITUTION:The diaphragm 1 consists of two diaphragm raw members 2, 3. A synthetic resin made thin sheet member is formed as a cone in the one diaphragm raw member 2 and truncated pyramid shells 2a are arranged to the cone face concentrically around the center O of the cone and formed incorporatedly. The same type of material as the diaphragm raw member 2 is used for the other diaphragm raw member 3, which is formed as a cone, but the diameter is smaller than the diameter of the outer side diaphragm raw member 2 and the apexes of the shells 2A, 3A of the rugged shape formed to both the diaphragms are made coincident when both the diaphragm raw members are overlapped. Then the diaphragm raw member 2 is placed at the outside and the diaphragm raw member 3 is located at the inside and they are arranged concentrically and the apexes of the shells 2a, 3a formed to the diaphragm raw members 2, 3 are adhered by an adhesives to constitute the diaphragm 1.
Patent JP-2001123065-A (JP)
Title: Mixture for pavement, method of manufacture and method of pavement
Inventor: SAZAWA MASAKI
IPC: E01C7/26
Filed: 1999-10-22
Abstract: PROBLEM TO BE SOLVED: To reduce temperature conditions during manufacture or working without impairing quality and workability. SOLUTION: The pavement mixture comprises asphalt, an aggregate and an insulating material. The pavement mixture may further comprises a work modifier and improver in addition to the insulating material. The insulating material in the mixture controls the reduction of temperature of the mixture to maintain the viscosity of the mixture at a proper value for a long time.