baber/WOPTO huggingface dataset:
Patent JP-H0899929-A (JP)
Title: Production of high-purity oxalic acid
Inventor: KITANO YASUO
IPC: C07C55/06
Filed: 1994-10-04
Abstract: PURPOSE: To provide a process for easily producing high-purity oxalic acid containing an extremely small amount of impurities such as sulfate group from crude oxalic acid containing the impurities. CONSTITUTION: This process for the production of high-purity oxalic acid comprises the 1st step 1 to react crude oxalic acid containing sulfate group with an alcohol to form an oxalic acid diester, the 2nd step 2 to separate the oxalic acid diester produced by the 1st step by distillation, the 3rd step 3 to hydrolyze the oxalic acid diester separated by distillation in the 2nd step to form oxalic acid and the 4th step 6 to crystallize the oxalic acid formed by the 3rd step.
Patent JP-H1158374-A (JP)
Title: Granulating die
Inventor: KAKIZAKI ATSUSHI
IPC: B29C48/345
Filed: 1997-08-22
Abstract: PROBLEM TO BE SOLVED: To provide a granulating die in which the problem of clogging of nozzles is not generated, the consumption of quantity of heat is small and a product of high quality can be manufactured despite of the inexpensive manufacturing cost. SOLUTION: A granulating die 1 is provided with a plurality of nozzles 5, 5... communicated with a cylinder of an extruder and a heating means 7 for heating the inside, and an end 6 whereon nozzles 5, 5... are opened is brought into contact with or close to water, and the vicinity of an area on which the nozzles 5, 5... are opened is coated with a porous metal material 8.
Patent JP-S60133263-A (JP)
Title: Solar heat collector
Inventor: SEKIGAMI KUNIMORI
IPC: F24S90/00
Filed: 1983-12-19
Abstract: PURPOSE:To efficiently and securely condense a vapor generated in a heat collector and recover it into a circulating passage, by a construction wherein a heat collector, a heat exchanger, a heat-collecting forward pipe provided with a heat-collecting pump, and a heat-collecting return pipe are connected in a loop form to form a circulating passage for a heat-transmitting medium, the return pipe and the forward pipe are connected to each other by a connecting pipe, and the connecting pipe is provided with a check valve which permits the medium to flow from the return pipe toward the forward pipe. CONSTITUTION:When a heat-collecting pump 4 is operated where the sunchine is available, the heat-transmitting medium 8 flowing from a heat collector 1 into a heat- collecting return pipe 7 flows through a gas-liquid separating part 13, a liquid pipe joint part 17, a connecting pipe joint part 20 and a heat exchanger 3 in this order, and does not flow into an expansion tank 6, so that it does not release collected solar heat to the atmosphere. When the collector 1 is heated under the condition wherein the pump 4 is stopped, the vapor generated in the heat collector 1 is separated from the liquid by the separating part 13 of the return pipe 7, and flows into the tank 6 through a vapor pipe 15. In this case, the vapor is cooled through heat exchange with the outside air at a radiator 14, whereby it is condensed to a liquid, which is recovered into the tank 6.
Patent JP-H1165520-A (JP)
Title: Display device for plasma display panel and its drive method
Inventor: MASUCHI SHIGEHIRO
IPC: G09G3/28
Filed: 1997-08-21
Abstract: PROBLEM TO BE SOLVED: To provide a display device for a plasma display panel, capable of reducing a pseudo-contours and flickers and also reducing reactive power efficiently. SOLUTION: A maximum gradation detecting circuit by line 12 detects the highest gradation of an image signal in every one line. A control circuit of a number of sustaining discharging times by a line in the field 13 performs a control, so as to reduce the number of sustaining discharging times preferentially from the subfield allocated to the display of the most significant bit of the image signal, in accordance with the luminance difference between the maximum value and the highest gradation with respect to a line in which the highest gradation does not reach the maximum value, corresponding to the number of the digital conversion bits of the image signal. A digital conversion circuit 14 converts the generated pattern of the image bit data of the image signal, in accordance with the decreasing of the number of sustaining discharging times.
Patent JP-H0289077-A (JP)
Title: Image forming device
Inventor: HIRABAYASHI HIROMITSU
IPC: G03G15/20
Filed: 1988-09-26
Abstract: PURPOSE:To reduce the heat capacity of a heating body without the occurrence of a fixing defect or an offset by executing rewinding of a fixing film as the preferential main operation during operation of a driving source with respect to winding and rewinding of the fixing film and executing winding of the fixing film as the auxiliary operation only during a prescribed processing synchronized with carrying of a recording material. CONSTITUTION:A toner image heating and fixing means 20 runs a fixing film 23 forward at the same speed as the carrying speed of a recording material P, which is carried from image forming means 3 to 5 and bears an unfixed toner image, and inserts the recording material P between this fixing film 23 and a pressure member 22 to fix the unfixed toner image to the surface of the recording material P by heating. Fixing film driving control means 37 and G1 to G11 execute rewinding of the fixing film 23 of the toner image heating and fixing means 20 as the preferential main operation during operation of the driving source and executes winding of the fixing film as the auxiliary operation to rewinding as the preferential main operation only during the prescribed fixing processing synchronized with carrying of the recording material P. Thus, the heat capacity of the heating body is reduced without the occurrence of a fixing defect or an offset.
Patent JP-H0772463-A (JP)
Title: Plasma address liquid crystal display device
Inventor: YANO TOMOYA
IPC: G02F1/139
Filed: 1993-09-01
Abstract: PURPOSE:To prevent the light leakage occurring in the plasma light emission of the plasma address liquid crystal display device. CONSTITUTION:This plasma address liquid crystal display device has a flat panel structure superposed with a liquid crystal cell 1 for display and a plasma cell 2 for addressing on each other via an intermediate sheet 3. The liquid crystal cell 1 is composed of an upper substrate 4 joined to the intermediate sheet 3 via a prescribed spacing and a liquid crystal 5 held in a spacing. The liquid crystal 5 is a guest-host type including homogeneously oriented dichromatic dyestuff 6. One sheet of polarizing plate 7 having the absorption axis orthogonal with the absorption axis of the guest-host type liquid crystal 5 is arranged on the front surface side of the upper substrate 4. A twist oriented nematic liquid crystal may be used separately from such structure. An oriented film having a linear polarization characteristic is formed on one surface side of the intermediate sheet in contact with the nematic liquid crystal in such a case. At least one sheet of the linear polarizing plate is otherwise arranged on the front surface side of the upper substrate and is so arranged that its absorption axis intersects orthogonally with the absorption axis of the oriented film having the linear polarization characteristic.
Patent JP-S61119708-A (JP)
Title: High-tenacity acrylic fiber and production thereof
Inventor: TANAKA HIROYOSHI
IPC: D02J1/22
Filed: 1984-11-16
Abstract: PURPOSE:To produce the titled fiber having high orientation degree and excellent surface smoothness, by extruding a specific acrylonitrile polymer solution into a coagulation bath, and subjecting the fiber to washing with water, primary drawing, drying, and then secondary drawing. CONSTITUTION:An acrylonitrile polymer solution having an intrinsic viscosity of >=2.5, a polymer concentration of 5-20wt% and a solution viscosity of 1,500 poise is extruded through a spinning nozzle into air or an inert gas. The extruded fiber is introduced into a coagulation bath such as water, and is subjected to the washing with water, the primary drawing, and the drying. The obtained fiber is subjected to the secondary drawing under dry hot condition to about >=10 times the length of the original fiber to obtain the objective fiber having an X-ray crystallite orientation degree of 93%, a tensile strength of >=10g/d, and smooth surface. The surface smoothness of the fiber is preferably >=10% in terms of relative glossiness.
Patent JP-S61120845-A (JP)
Title: Resin composition for plating
Inventor: IWAMOTO MASATOSHI
IPC: C08L55/02
Filed: 1984-11-16
Abstract: PURPOSE:To provide the titled compsn. yielding plating films excellent in thermal cycling resistance and peeling strength, by incorporating three particular copolymers with an org. silicon compd. CONSTITUTION:15-75pts.wt. polybutadiene latex, 5-95pts.wt. graft copolymer in which an arom, monovinyl monomer (a) and a vinyl cyanide monomer (b) are partially grafted onto said polybutadiene latex, 100pts.wt. mixture of 95-5pts.wt. graft copolymer in which the component (a) and the component (b) are partially grafted onto 15-75pts.wt. styrene/butadiene copolymer latex having the content of styrene of 5-45pts.wt. with 0-85pts.wt. copolymer of 50-85pts.wt. component (a) and 50-15pts.wt. component (b), and 0.01-0.5pts.wt. org. silicon compd. having a viscosity at 25 deg.C of 10-100,000cst, a surface tension of 0.25wt% soln. in toluene at 25 deg.C of 26.5dyne/cm or less, and a repeating unit of the formula (wherein R1-2 are H, alkyl, aralkyl, carboxymethyl; n is 1 or above) are incorporated.
Patent JP-H0866494-A (JP)
Title: Treatment for making pcb waste harmless and method for recycling products
Inventor: KUBOTA TORU
IPC: A62D3/30
Filed: 1994-08-29
Abstract: PURPOSE: To make it possible to solidify PCB with the cement of burned ash in a stable condition, by subjecting PCB to sodium treatment together with a catalyst and solvent to be decomposed into biphenyl sodium and sodium chloride. CONSTITUTION: PCB is subjected to sodium treatment together with a catalyst and solvent to be decomposed into biphenyl sodium and sodium chloride. The biphenyl sodium is heated and is hydrolyzed into biphenyl. Hereat, the catalyst is selected from among cobalt chloride, ferric oxide, ethylene diamine, and pyrolignous acid. The solvent is selected from ethanol and diethyl ether. The sodium treatment is done by using a mixed ionic water solution of potassium, calcium, aluminum, fluorine, silicon, boron and the like, besides sodium. Consequently, harmful PCB is replaced by biphenyl sodium, and is recycled as biphenyl after hydrolysis. The deposits containing sodium chloride can be solidified together with the burned ash.
Patent JP-2000068000-A (JP)
Title: Connector
Inventor: TSUJI KENJI
IPC: H01R13/639
Filed: 1998-08-26
Abstract: PROBLEM TO BE SOLVED: To enhance the reliability upon the unlocking motion. SOLUTION: An unlocking member 30 moves relative to a female side housing 20 in the fitting and separating directions. To generate unlocking, the member 30 is engaged with a resilient lock piece 23 while a force in the direction of separating from a receptacle part 13 is applied. This causes the piece 23 to deflect in the direction of separating from the receptacle part 13, which performs unlocking. At the time of unlocking, the piece 23 is pushed in the direction of separating from the receptacle part 13, so that there is no risk that the piece 23 can not make hitching with the receptacle part 13, and unlocking is surely performed.
Patent JP-2000061536-A (JP)
Title: Roll forming device
Inventor: WADA DAISUKE
IPC: B21D5/14
Filed: 1998-08-26
Abstract: PROBLEM TO BE SOLVED: To provide a roll forming device capable of forming opening parts in parallel even though a workpiece is an ununiform material having uneven thickness and easily coping with a difference of a diameter, width, and uneven thickness quantity of the workpiece. SOLUTION: A workpiece is formed into a cylindrical shape without damaging a flange by passing the workpiece through a pressurizing boundary surface which is formed by bringing an elastic roll 1 into press-contact with a rigid roll 2 so that the end part of the side wherein the flange of the workpiece is formed escapes from the pressurizing boundary surface. A roll 3 which is supported by an arm 3a is arranged so that a pressure is applied in the direction wherein a flat surface part of the workpiece which appears from the pressurizing boundary surface between the elastic roll and the rigid roll is moved to the rigid roll side.  The roll 3 is constituted to be able to change and adjust a loading position (L: a position of the rigid roll in the width direction, 1: a position in the direction parallel to the pressurizing boundary surface and moreover orthogonal to L, h: a position in the direction orthogonal to the pressurizing boundary surface, θ: rotation angle) and a loading range (m: the width of the roll 3, d: the diameter of the roll 3).
Patent JP-S59190421-A (JP)
Title: Exhaust-noise suppressing apparatus for car
Inventor: ABE TAKESHI
IPC: F01N1/24
Filed: 1983-12-20
Abstract: PURPOSE:To effectively reduce the exhaust noise in a wide frequency range by connecting a noise suppressing cylinder which is made of porous material and has the equal inside diameter to a tail tube, at the rear edge of said tube, and installing an outside cylinder, keeping each prescribed peripheral gap from between the outside of the noise suppressing cylinder. CONSTITUTION:A noise suppressing cylinder 7 which is made of the porous material having air vent holes and has a prescribed length is connected to a discharge port 4A at the rear edge of a tail tube 4. An outside cylinder 8 which is made of metal plate and is set a little longer than the noise suppressing cylinder 7 is arranged outside the noise suppressing cylinder 7. Said noise suppressing cylinder 7 is formed to a true circular cylinder having the equal inside diameter to the tail tube 4. While, said outside cylinder 8 is formed to have rectangular section, and a back air layer (A) which has the different length of gap in the vertical and the lateral directions from between the noise suppressing cylinder 6.
Patent JP-S61123734-A (JP)
Title: Air-fuel ratio controller
Inventor: MORITA KIYOMI
IPC: F02D41/14
Filed: 1984-11-16
Abstract: PURPOSE:To improve a degree of exhaust emission control capacity ever so better, by controlling fuel by cooling water temperature in time of an oxygen sensor being inactive, while performing oxygen feedback in time of the oxygen sensor being active, and controlling the fuel an increment signal compensated by the cooling water temperature in time of high load, high engine speed, in addition. CONSTITUTION:In time of engine running, first of all, a fundamental injection quantity Tp is found on the basis of each output of a suction pipe pressure sensor 23 and a crank angle sensor 44 at a control circuit 54. Next, judging activity in an oxygen sensor 34, when it is judged as being activated, feedback is made to be done when an engine is below the specified engine speed and also below the specified load. And, with judgment of whether rich or lean, an air-fuel ratio factor alpha=alpha+ or -DELTAalpha is calculated, setting a final injection quantity Ti. On the other hand, in the case where the engine is more than the specified engine speed and also more than the specified load, the oxygen feedback is stopped, and the final injection quantity is set in conformity with a water temperature compensation factor KTW based on output of a temperature sensor 46.
Patent JP-H04124191-A (JP)
Title: Organosilicon compound
Inventor: KOBAYASHI MINEO
IPC: C07F7/12
Filed: 1990-09-13
Abstract: NEW MATERIAL:A compound expressed by formula I [R is H, 1-20C alkyl, alkenyl, aryl, alkoxy or dialkylamino; the formula (CH2)mSinCl2n+1 may be at any of the o-, m- and p-positions with respect to RC=CH2:(m) is 0-20; (n) is 1=3]. EXAMPLE:p-Vinylphenyltrichlorosilane. USE:A raw material for silicon-containing polymers, a silane coupling agent, etc. PREPARATION:A Grignard reagent synthesized from a compound expressed by formula II is allowed to react with a silicon chloride expressed by the formula SinCl2n+1.
Patent JP-H0581073-A (JP)
Title: Insepection system for program
Inventor: USUKI MASATAKE
IPC: G06F11/28
Filed: 1991-09-20
Abstract: PURPOSE:To easily generate a test program having macro instructions where the contents of parameters differ and to easily inspect the program having a part which operates by means of the macro instructions. CONSTITUTION:A parameter table 20 storing the operand codes of the parameters required for the macro instructions which the test program issues in a record unit is provided in the test program. An input means 1 inputting the parameters corresponding to the respective operand codes in an interactive system, a parameter storage means 21 storing the parameters inputted by the input means 1, a parameter registration means 62 storing storage addresses of the inputted parameters into the storage means 21 in the records of the parameter table having the operand codes corresponding to the respective parameters are provided. The operand codes stored in the parameter table and the storage addresses of the parameters are sequentially read for the issuing command of the macro instruction, and they are transferred to the program executing the macro instruction.
Patent JP-H0799698-A (JP)
Title: Speaker system
Inventor: IIMURA KATSUHIKO
IPC: H04R3/04
Filed: 1993-09-28
Abstract: PURPOSE:To provide a speaker system capable of performing feedback using a bridge circuit over a wide band. CONSTITUTION:This system is provided with a cabinet 12, a speaker unit 11 attached to the cabinet 12, a power amplifier 13 for driving the speaker unit 11, the bridge circuit 14 in which a voice coil impedance correction circuit 17 composed of a resistor Rs and a capacitor Cs for detecting a voltage proportional to the vibration system speed of the speaker unit 11 is arranged parallelly to the speaker unit 11 and a feedback circuit 15 for transforming the detection voltage of the bridge circuit 14 and then feeding it back as it is or through a differentiation circuit to the power amplifier 13.
Patent JP-H03102957-A (JP)
Title: Original reader
Inventor: KONISHI SHINICHI
IPC: G06T1/00
Filed: 1989-09-18
Abstract: PURPOSE:To attain initial position setting with a simple sequence by devising the reader such that the accurate initial position is set at all times even when the optical system is in any position at the reset of the reader such as power-on reset or the like. CONSTITUTION:In the case of resetting to the reader, when an end position sensor 8 detects the end position of an optical system 1, an initial position sensor 7 drives a motor drive means 10 in the returning direction and when the initial position sensor 7 detects the optical system 1, a motor 2 is driven in the returning direction by a prescribed pulse number from the position. Then the motor 2 is driven in the scanning direction and when the initial position sensor 7 detects the initial position of the optical system, the motor 2 is stopped to apply the initial position setting of the optical system.
Patent JP-2001066964-A (JP)
Title: Image forming device
Inventor: FUJITA SHINSUKE
IPC: G03G15/16
Filed: 1999-08-27
Abstract: PROBLEM TO BE SOLVED: To provide a device with which the contamination of a transfer means, in particular with toners, may be prevented, always bright images may be formed and the wasteful consumption of the toners is prevented by turning off the transfer means in accordance with the rear end detection signal of recording paper by sensor. SOLUTION: The constitution to turn off the transfer means 26 in accordance with the rear end detection signal of the recording paper by the sensor 24 is adopted. A transporting path for the recording paper is provided thereon with a resist shutter 25 as a synchronizing means for taking the synchronization of the movement of the recording paper with toner image formation on a photoreceptor drum 10. The sensor 24 for detecting the recording paper passing of the resist shutter 25 is disposed right upstream of this resist shutter 25. A control means controls a power source for an electrostatic charging means 11, a power source for an erasing LED 12, a power source for an exposure lamp 16, a development bias power source for a developing means 21 and a power source for the transfer means 26 and a separating means 27.  The power source of the transfer means 26 and the power source of the separating means 27 are simultaneously turned on/off and may be separately turned on/off as well.
Patent JP-S6483958-A (JP)
Title: Chain-type steel belt for continuously variable transmission
Inventor: AKAMARU NAOYUKI
IPC: F16G5/18
Filed: 1987-09-26
Abstract: PURPOSE:To conduct smooth operation by providing a thin friction piece for an inner link plate and reducing the minimum pitch to the double of the radius of both end portions of an outer link plate. CONSTITUTION:A friction piece 8 is formed by a thin steel plate, and a chain pitch is reduced. In order to further reduce the pitch, a friction piece for an inner link plate corresponding to a portion where radii R of both end portions of right and left outermost outer link plates adjacent to the friction piece 8 for the inner link plate is made thinner. Accordingly, the minimum pitch can be reduced to about the double of the radius R, and the number of friction pieces in a unit 11 length can be increased so that smooth operation can be conducted.
Patent JP-H04120591-A (JP)
Title: Liquid crystal display device
Inventor: SUGANO HIROMASA
IPC: G09G3/36
Filed: 1990-09-11
Abstract: PURPOSE:To prevent the deterioration of a picture quality by delaying the generation timing of an output enable signal by the time corresponding to a fall characteristic of a gate driving signal, and generating a voltage fluctuation of a drain driving signal while a picture element display is being executed. CONSTITUTION:Plural pieces of drain electrodes D1 - DM are divided into plural groups, drain drivers 12a, 12b are divided at every divided group thereof, and a drain driving signal generating part 17 is constituted so that an output enable signal is inputted to each of them by a separate timing. In such a state, it is driven so that the output enable signal is turned off after a gate driving signal is turned off by delaying a generation timing of the output enable signal at every group by the time corresponding to a fall characteristic of the gate driving signal of a gate driving signal generating part 18 applied to gates G1 - GN of a thin film transistor. In such a way, a voltage fluctuation of the drain driving signal is generated while a picture element display is not being executed, and deterioration of a picture quality is prevented.
Patent JP-S60131994-A (JP)
Title: Iron-phosphorus electroplating bath
Inventor: UCHIDA HIROKI
IPC: C25D3/56
Filed: 1983-12-21
Abstract: PURPOSE:To provide an iron-phosphorus electroplating bath which yields a crack-free film having excellent mechanical characteristics by consisting essentially the bath of bivalent ion iron and phosphorous acid and/or phosphite. CONSTITUTION:An iron-phosphorus electroplating bath contains 20-80g bivalent iron ion for which ferrous sulfate or the like is used as a supply source and 0.01-20g, more particularly 0.1-10g phosphorous acid and/or phosphite (in the form of NaH2PO3.2H2O) for each 1l of the plating bath. The iron-phosphorus plating film having usually 0.05-10% phosphorus content is obtd. by changing the content of phosphorous acid or phosphite in such plating bath. Ammonium sulfate, etc. may be further added as electrical conductivity salt to the plating bath at 0-200g/l, boric acid, etc. as a pH buffer at 0-60g/l, acidic ammonium fluoride, etc. as a complexing agent for tri-valent iron ion at 0-20g/l. The bath temp. in the stage of using the plating bath is made room temp. -80 deg.C, pH 0.5-3.5 and cathode current density 0.5-30A/dm<2>.