baber/WOPTO huggingface dataset:
Patent JP-S59149783-A (JP)
Title: Drive device for motor
Inventor: OGURA MASAHIKO
IPC: H02P6/08
Filed: 1983-02-09
Abstract: PURPOSE:To always maintain the winding applying voltage of a DC brushless motor constant without using a stabilized power source by controlling ON or OFF drive current switching means in response to the detection output of the applied voltage to the winding of the motor. CONSTITUTION:Unstable DC voltage of a power source circuit 8 is converted to 3-phase AC voltage through power transistors 4U-4W' controlled ON or OFF by rotor position detection signals from Hall elements 10U-10W, and applied to windings 1U-1W. The AC voltages are rectified by diodes 19U-19W, divided via resistors 20, 21, then integrated by an integrator which has a resistor 22 and a capacitor 23, and compared and amplified with a reference voltage of a DC power source 25 by a comparator 24. The compared output is compared by a comparator 27 with the output of a triangular wave generator 26 to vary the ON and OFF width of the transistor 9. For example, when the effective value of the winding supplying voltage increases, the output of the comparator 27 increases at the rate of high level, and the rate of the OFF of the transistor 9 increases.
Patent JP-H04237137-A (JP)
Title: Control method for compositional ratio of mercury tellurium ternary compound
Inventor: SASAKI NARIHITO
IPC: C30B29/48
Filed: 1991-01-22
Abstract: PURPOSE:To perform the control of the compositional ratio of a mercury telluri um ternary compound with good reproducibility and in a short time. CONSTITUTION:A crystal 3 of a mercury tellurium ternary compound containing mercury, whose composition has a value larger than a desired value, is used and this is put in a surface analytical device and is heated by a heating device 5. Whereupon, mercury atoms are gradually sublimed from the crystal surface. These mercury atoms are monitored in surface analytical devices 1 and 2 and a compositional ratio (x) is previously set at a quantitative determination by another method. Thereby, the control of the compositional ratio of the mercury tellurium ternary compound is performed on the spot.
Patent JP-H10215976-A (JP)
Title: Chair molding method
Inventor: OGINO TAMOTSU
IPC: B68G7/06
Filed: 1997-02-03
Abstract: PROBLEM TO BE SOLVED: To provide a molding method capable of turning facing cloth to a stretched state and eliminating the need of the process of closing up the opening of a bag in the molding method of the back or seat of a chair for which a cushion material is covered with the facing cloth. SOLUTION: A frame-shaped insertion metal fitting is put in the facing cloth 3 turned to a bag shape, they are put inside a die 13 and liquid polyurethane resin is poured inside the facing cloth 3. For a grooved metal fitting 7b at the upper part of the insertion metal fitting, a cross section is turned to a U-shape and the facing cloth 3 is overlapped while being put in there. Then, when a pressing die 15 is mounted on the die 13, a projected line 17 is fitted to the grooved metal fitting 7b and the opening of the facing cloth 3 is temporarily fixed. The liquid polyurethane resin enters a part where the opening is overlapped and adheres the opening. As foaming advances, the liquid polyurethane resin presses the facing cloth 3 from an inner side to the die 13 and the seat for which the facing cloth 3 is in a firmly stretched state is molded.
Patent JP-H03225922-A (JP)
Title: Manufacture of semiconductor device
Inventor: SATO AKIRA
IPC: H01L21/3205
Filed: 1990-01-31
Abstract: PURPOSE:To bury a through hole with a wiring conductive film without deteriorating patterning accuracy of an overlying wiring layer by selectively forming a buffer conductive film only on a region inside a through hole and its vicinity and then depositing the wiring conductive film thereon. CONSTITUTION:An Al film is deposited by means of sputtering deposition on a silicon substrate 1 and patterned by means of conventional photolithography to form an underlying wiring layer 2a. Then a PSC film 3 is deposited by means of CVD method. Then the PSC film 3 is selectively etched and removed to form a through hole 4. A Ti film 5 is deposited on an entire face by means of sputtering deposition and the Ti film 5 which attaches to regions except inside the through hole 4 and its vicinity is selectively etched and removed. Then an Al film 6 is deposited on an entire face by means of sputtering deposition. The Al film 6 is then selectively etched to form an overlying wiring layer 6a. At this time since the thickness of the Al film 6 on a region except the through hole 4 is uniform, optimum etching of the Al film 6 is possible thereby forming an overlying wiring layer pattern with high accuracy.
Patent JP-H11217528-A (JP)
Title: Water born ink
Inventor: WAKABAYASHI SHIGEMI
IPC: C09D11/38
Filed: 1998-02-02
Abstract: PROBLEM TO BE SOLVED: To obtain a water born ink that exhibits high printing concentration with resistance to bleeding, excellent in marking resistance and is useful as an ink for ink jet recording by using a colorant and a specific ether compound. SOLUTION: The object water born ink comprises a colorant and an ether compound represented by the formula: R1 -O-(AO)n -R2 [R1 is a branched chain 3-10C alkyl, a (substituted) 5-7 cycloalkyl; R2 is a 1-30C hydrocarbon; A is a 2-6C alkylene; (n) is 1-150] preferably in an amount if 0.05-3 wt.% therein. In a preferred embodiment, this ether compound is represented by the formula: R3 -O-(BO)m R4 (R3 is 1,3-dimethylbutyl, isopropyl, isobutyl or the like R4 is a 1-30C alkyl, an alkenyl; B is an 2-4C alkylene; (m) is 1-150) or by the formula: R5 -O-(EO)1 -R6 (R5 is 1,3-dimethylbutyl, isopropyl, isobutyl or the like and R6 is an alkyl; E is ethylene; (l) is 1-150).
Patent JP-H11216079-A (JP)
Title: Bathroom wall panel
Inventor: KOIZUMI YOICHI
IPC: E04C2/30
Filed: 1998-02-02
Abstract: PROBLEM TO BE SOLVED: To provide a bathroom wall panel that holds a bathroom appliance fixed to its surface securely and has a small overall thickness and a reduced weight. SOLUTION: The bathroom wall panel comprises a panel body 2 having on its backside an inorganic board 3 glued thereto, and a screw support member 4 placed on the backside of the panel, body 2 to receive fixing screws driven thereinto for fixing a bathroom appliance to the surface of the panel body 2 or fixing the panel itself. The screw support member 4 is made of a rigid material, into which fixing screws can be driven and which has a U-shaped cross section with one side made longer than the other. The outer wall surface of the shorter side is glued to the backside of the panel body 2, and the edge- side inner wall surface of the longer side is glued to the sidewall on the backside of the inorganic board 3 glued next to the screw support member 4 on the backside of the panel body 2.
Patent JP-H02160748-A (JP)
Title: Liquid crystal compound
Inventor: SUZUKI GIICHI
IPC: C07C69/90
Filed: 1989-02-01
Abstract: NEW MATERIAL:A liquid crystal compound of the formula I (Ra is 1-20 C alkyl, 1-20C alkoxy; Rb is 1-20C aliphatic alkyl, branched alkyl, aralkyl, alkoxy; X, Y are formula 11, formula III; Z is fluorine-containing alkyl, halogen substituent; m is 1 to 3; n is 0, 1, 2 where, when n is 0, Y is single bond and * is optically active carbon). EXAMPLE:4-n-Dodecyloxybiphenyl 4-(1,1,1-trifluoro-2-octyloxycarbonyl)-benzoate. USE:It is used as a ferroelectric chiral smectic liquid crystal. It can be applied to display elements and electrooptical elements utilizing the response to the electric fields. The compound is physicochemically stable with a large spontaneous polarization. PREPARATION:For example, 4-benzyloxybenzoic chloride and optically active 1,1,1-trifluoro-2-alkanol are used as starting substances and subjected to several steps of reaction procedures to give the compound of formula I.
Patent JP-S61181295-A (JP)
Title: Data control circuit
Inventor: TAKAHASHI MINORU
IPC: H04Q3/42
Filed: 1985-02-07
Abstract: PURPOSE:To convert a received serial signal into parallel data with the circuit constitution of low power consumption and low cost by providing a function of a data selector to a serial/parallel converting circuit. CONSTITUTION:Serial data from a subscriber is inputted to a device B and the data is inputted to a device A, where the data is converted into parallel data. The serial data is converted into the parallel data by a serial/parallel conversion and data selector 21 and sent to a data processing unit 22 and an internal selector. The serial/parallel conversion and data selector 21 selects either the parallel data or the software control data by using the internal data selector. A control circuit 23 uses in common the serial/parallel converting circuit and the data selector by controlling the data that the time when the data of the software control of the device 1b is sent to other circuit is made not coincident with a time when the data from the device 1a is fetched to the data processing unit 22 and informed to the control circuit 23.
Patent JP-S63190259-A (JP)
Title: Fused carbonate fuel cell
Inventor: OGAWA HAKARU
IPC: H01M8/24
Filed: 1987-01-31
Abstract: PURPOSE:To suppress the decomposition loss of electrolyte, stabilize the cell performance for a long time, and firmly prevent the leakage of reaction gas and the like, by using mixed gas comprising nitrogen and carbon dioxide as an atmospheric gas flowing in a containment. CONSTITUTION:Carbon dioxide with a high partial pressure is present in a containment 4 of fused carbonate fuel cell, and, consequently, the fused carbonate does not decompose by the reaction. It, therefore, suppresses a decrease in fused carbonate, resulting in long-term stabilization of the cell performance and prevention from reaction gas leakage and cross-contamination.
Patent JP-H10203807-A (JP)
Title: Boron nitride powder of turbostratic structure and its production
Inventor: YAMAMOTO OSAMU
IPC: C04B35/583
Filed: 1997-01-20
Abstract: PROBLEM TO BE SOLVED: To inexpensively produce high-purity boron nitride with a turbostratic structure that attains a high bulk density, when it is molded, shows excellent sinterability and gives sintered products of high strength in an industrially large scale by crystallizing a substantially amorphous boron nitride in the presence of a molten alkali borate in a non-oxidative atmosphere. SOLUTION: A mixture, preferably containing a boron source (for example, boric anhydride and borax) and a nitrogen source (for example, urea) is heated under normal pressure condition or pressurized condition (in a tightly closed or almost closed reaction vessel), for example, the temperature is raised up from 250 deg.C to 900 deg.C in a multi-step manner to synthesize substantialy amorphous boron nitride. This amorphous boron nitride is crystallized by heating in the presence of a molten alkali borate, for example, borax as a flux agent in a non-oxidative atmosphere (including tightly closed or almost closed atmosphere in a vessel) at temperature, preferably lower than 1,500 deg.C, particularly at 1,200-1,400 deg.C for a prescribed time until the amorphous boron nitride crystallizes and attains substantially crystalline turbostratic structure.
Patent JP-S58138546-A (JP)
Title: Continuous casting method of steel
Inventor: MITSUZUKA MASASHI
IPC: B22D11/128
Filed: 1982-02-15
Abstract: PURPOSE:To supply ingots of high temp. having less surface cracks to a rolling stage and to improve the quality of products by incorporating heat pipes which operate at specific temp. or above with rolls or forming the rolls into heat pipe construction. CONSTITUTION:Heat transfers from an ingot C through a roll 1 to the heat medium packed in the cavity part 3 of the roll, and when the heat medium attains >=300 deg.C high temp., the heat medium boils to a gaseous state and transfers axially to the end parts of the roll. Cooling water W is applied on the sides nearer the end parts than the positions where the flanges 4 of the roll 1 are fixed. The vapor phase heat medium in said parts is liquefied and is migrated and returned axially on the inside wall surface of the roll 1 by the capillarity of wicks 2. The surface temp. in the central part in the transverse direction than the positions where the flanges 4 of the roll 1 are fixed is thus maintained at about 400-500 deg.C.
Patent JP-S58140213-A (JP)
Title: Method for plastic covering
Inventor: SENDA KAZUNORI
IPC: B29C63/18
Filed: 1982-02-15
Abstract: PURPOSE:To uniformly cover a wire, even though soft one, free from being damaged, by a method wherein whole heater is rotated by making the center axis of a plastic pipe as its center. CONSTITUTION:A plastic pipe 2 is arranged outside a glass fiber 1 and diffused by heating with plural pieces of heater 3, 4 arranged outside, a plastic covered glass fiber 5 is obtained. In this case, the position of plastic pipe is detected with a position detector, a vertically moving board 8 and a horizontally moving board 9 being travelled by a signal processing circuit 7, and the center axis of heater is coincided with the center axis of plastic pipe. And at the same time, a rotary connecting terminal 12 is arranged between the furnace body 10 supporting heaters 3, 4 and a power source 11, and power is supplied to the rotating furnace 10 with a motor for rotation.
Patent JP-S62179509-A (JP)
Title: Polydihydracene and its production
Inventor: KITAMURA TAKU
IPC: C08G61/00
Filed: 1986-02-04
Abstract: PURPOSE:To facilitate the formation of polydihydroacene, excellent in electric conductivity, moldability, etc., by subjecting polymethyl vinyl ketone to an intramolecular aldol reaction in an inert solvent in the precence of a catalyst and subjecting the product to a dehydration reaction. CONSTITUTION:Polymethyl vinyl ketone is dissolved in an inert solvent (e.g., anhydrous tetrahydrofuran) and subjected to an intramolecular aldol reaction by the addition of a catalyst (e.g., n-butyllithium) to obtain an intermediate polymer of formula I. This intermediate polymer is subjected to a dehydration reaction to obtain a polydihydracene of formula II. Although the dehydration reaction can be performed within a short time by using an acid catalyst (e.g., p-toluene-sulfonic acid), it is also possible to perform the dehydration reaction by merely heating in a stream of an inert gas when the presence of a trivial amount of an acid in the obtained polydihydroacene is not desirable.
Patent JP-H06234037-A (JP)
Title: Device for machining valve shaft of power steering
Inventor: OBONAI SHIGERU
IPC: F16K11/00
Filed: 1993-02-09
Abstract: PURPOSE:To provide a valve shaft machining device where a valve groove machining on an outer circumference of a work and a beveling on an edge periphery of a side wall of the valve groove can be executed at the same time. CONSTITUTION:The valve shaft machining device is provided with a die 10 forming a projecting part 12 corresponding to the valve groove on the inner circumferential surface of an inserting hole 11, and together which is composed with forming a beveling shape part 13 corresponding to the beveling of the valve groove on the base end part of this projecting part, and a pressurizing means 20 forcibly pressing a work W to be made to the valve shaft of almost same diameter in an axial direction inside the inserting hole 11 of this die.
Patent JP-S58139010-A (JP)
Title: Running guidance device for vehicle
Inventor: NAKAJIYOU SATOSHI
IPC: G01C17/38
Filed: 1982-02-15
Abstract: PURPOSE:To make it possible to measure the direction and distance to a destination highly accurately, by comparing a detected geomagnetic signal of a direction sensor with a reference signal, and issuing warning when both values become unequal to each other. CONSTITUTION:A reference signal Er, which is outputted from a direction sensor and the detected geomagnetic signal Es are sent to a phase detector 12 of an error detecting circuit 10. A magnitude So of the vector of the signal Es, which is obtained when the vehicle is directed to the direction where the phase difference becomes thetao, is stored into a memory circuit 13 together with thetao. When the body magnetism of a vehicle is changed, the value corresponding to S'o is changed into Sn. The signal Sn and the stored signal So are compared in a comparator 14. When the difference exceeds a specified value, the output is generated from a comparator 14, the warning output is generated by an amplifier 13, and the vehicle magnetism is corrected. Therefore the direction and the distance to the destination can be measured highly accurately.
Patent JP-S61181883-A (JP)
Title: Temporary adhesive for soldering
Inventor: OGURA TOSHIAKI
IPC: C09J193/00
Filed: 1985-02-05
Abstract: PURPOSE:To provide the titled adhesive having an excellent adhesion, tackiness and elasticity which can adhere stably, does not hinder the soldering and can be easily washed out, which comprises a rosin resin and a thickener and optionally plasticizer etc. CONSTITUTION:40-80wt% of a rosin resin (A) having a softening point of 60-140 deg.C and an acid value of 10 or higher and selected from among natural rosin, hydrogenated rosin, maleic acid or phenol-modified rosin, polymerized rosin, rosin polyhydric alcohol, etc. is mixed with 3-30wt% of a thickener (B) having a particle size of 70mu or smaller and selected from among (organic) bentonite, kaolin, (hydrophobic) ultrafine silica, ultrafine Al2O3, etc. and 0-60wt% of a plasticizer (C) selected from among hydrogenated rosin methyl ester, hydroabiethyl alcohol and dimer acid and optionally 0-15wt% of various additives (D) such as antioxidant, activator for soldering, organic acid, N- containing base, surface active agent, corrosion inhibitor, frosting agent, antifoamer, etc.
Patent JP-S54115463-A (JP)
Title: Washing of heat exchangers
Inventor: OOI KATSUYA
IPC: F28G9/00
Filed: 1978-02-28
Abstract: PURPOSE: To discharge foreign matter attachment to the water chambers of heat exchangers to lower course side by providing a pressure water conduit piping for supplying pressure water directly to said water chambers.  
     CONSTITUTION: The stagnation caused by the eddy current of cooling water in water chambers 2 and 3 is eliminated through the process consisting of actuating a pressure water pump 7 and opening a main valve 8 to supply said water chambers 2 and 3 with the pressure water obtained by increasing the pressure of the cooling water in said water chambers to high values. Therefore, the foreign matters existing at said stagnation portion can be discharged completely. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S62179632-A (JP)
Title: Optical fiber tester
Inventor: YONEDA KUNIKI
IPC: G02B6/00
Filed: 1986-02-03
Abstract: PURPOSE:To enable a higher S/N ratio with a simple construction through a digital processing by subjecting a light receiving signal to an A/D conversion and an average processing to determine a correlation through a correlation circuit. CONSTITUTION:A laser light source 1 is controlled with pseudo random pulse generator 11. A pseudo random pulse laser light falls on an optical fiber 4 to be tested via a directive coupler 3 and reflected at a fault point of an optical fiber 4. This reflected light is received with a light receiver 5 through the coupler 3, the received light output is processed with an amplifier 7 and an A/D converter 13 and the received light digital signals are cumulatively added and averaged several times with an averaging circuit 14 several times to produce a digital signal cleared of noise components. This signal with a better S/N ratio undergoes a correlation processing with a correlation circuit 8 to sharpen the peak point of the output, thereby achieving a contact for a fault correctly.
Patent JP-H06215559-A (JP)
Title: Page memory access system
Inventor: SHIMOJIMA MASAHARU
IPC: G06F12/02
Filed: 1993-01-14
Abstract: PURPOSE:To provide a high speed page memory access even for the cases to read and to write picture data with characters which have a small amount of same row address data and have many data in a row address direction. CONSTITUTION:A RAS generation section 2 gives row address/strobe signals to a DRAM 1 which is used as a page memory and a CAS generation section 3 sends column address/strobe signals to the DRAM 1. An address transforming section 5 equally divides logical column addresses of the DRAM 1 into 2<n> parts and address transforms continuous 2<n> lines, which exist in the divided same logical column address region, so that these lines are assigned to same physical row addresses of the DRAM 1. At a selector 4, the addresses transformed by the section 5 are resolved into row and column addresses and are given to the DRAM 1. By performing the address transformation described above, (2<n>-1) times of a RAS precharge time and a load time are reduced for every 2n lines of the logical addresses.
Patent JP-S62182443-A (JP)
Title: Exhaust preventing system for warming-up gas during starting in coal gasifying composite power generating system
Inventor: WATANABE KIYOSHI
IPC: F23R3/28
Filed: 1986-02-03
Abstract: PURPOSE:To prevent exhaust of environmental pollution material, by a method wherein a gas holder tank is situated between a coal gasifying furnace and a gas turbine, crude fuel gas used during the starting is stored, and is used for soot blower. CONSTITUTION:A gas holder tank 8 is mounted through valves (a) and (c) between a coal gasifying furnace 1 and a gas turbine 5. Crude fuel gas for warming up during the starting is stored in the gas holder tank 8, and is recycled for the soot blower of the coal gasifying furnace 1 through the working or a compressor 7. This constitution enables prevention of exhaust of an environmental pollution material generated during the starting.
Patent JP-2000221557-A (JP)
Title: Image blur correcting device and photographing device using the same
Inventor: HAYASHI TAKAYUKI
IPC: H04N5/232
Filed: 1999-01-29
Abstract: PROBLEM TO BE SOLVED: To obtain an image blur correcting device where noise produced at the time of adjustment is prevented and can obtain a high quality image by moving a correction lens, comparing picked-up images, calculating the optical center position of the correction lens and setting it as a reference position. SOLUTION: An electrical signal from an image pickup device 22 is converted into a specified electrical signal by a video circuit 24. An angular velocity sensor 25 is arranged in a lens barrel in order to detect the shake of the lens barrel, and energizing amount for coils 10a and 10b driving a correction lens group L3 in a pitch direction and a yawing direction is controlled by a control circuit 26 in accordance with a detection signal from the sensor 25, thereby, image blur correction is performed.  Then, the lens group L3 is moved up and down and right and left by the circuit 26, and the luminance/resolution of the image at that time is compared by an image comparator circuit 27 so as to calculate a position where the most excellent resolution is obtained or a position where the image is well-balanced up and down and right and left within a moving range and set it as the optical center position of the lens group L3.