baber/WOPTO huggingface dataset:
Patent JP-H04266857-A (JP)
Title: Isolation of pure dinitrotoluene
Inventor: GIYUNTAA RAUFUSHIYUBARUBE
IPC: C07C201/16
Filed: 1991-11-12
Abstract: PURPOSE: To easily isolate pure dinitrotoluene by distilling a mixture of 2,4- and 2,6-dinitrotoluene isomers while excluding reducing conditions.  
     CONSTITUTION: A mixture containing 2,4- and 2,6-dinitrotoluene isomers is distilled under 0.5 to 20 mb pressure and at 80 to 200°C except for reducing conditions. In order to exclude the reducing conditions, a reducing agent is excluded from the begining, or the dinitrotoluene mixture to be isolated is treated with acid, then treated with alkali till the acid is removed, and then treated with water till the alkali is removed. 2,6-Dinitrotoluene is especially useful as an intermediate for dyes, pigments, pharmaceuticals, protecting agent for plants, polyurethane and cosmetics. 
     COPYRIGHT: (C)1992,JPO
Patent JP-H03185189-A (JP)
Title: Method for preventing corrosion and dust trouble of recovery boiler
Inventor: MATSUO TAKASHI
IPC: C01D5/16
Filed: 1989-12-14
Abstract: PURPOSE:To prevent the corrosion and dust troubles of a recovery boiler by adding sodium tetraphenyl borate and sunstone in a green solution to remove potassium, the green solution being prepared by dissolving in a weak acid an inorganic fusion product (smelt) separated from the recovery boiler. CONSTITUTION:(A) Sodium tetraphenyl borate and (B) sunstone and/or granite porphyry having a particle diameter of 1-10mum are added to a green solution prepared by in a weak acid an inorganic fusion product separated from a recovery boiler to remove potassium contained as an impurity in the green solution in a form of precipitates, thereby permitting to recover and utilize sodium hydroxide in improved purity in a next caustification process.
Patent JP-H01164356-A (JP)
Title: Apparatus for generating uniform magnetic field
Inventor: YAMAGUCHI MITSUHITO
IPC: A61B10/00
Filed: 1987-12-22
Abstract: PURPOSE:To improve the uniformity of the magnetic field of a yoke type magnetic field generating apparatus and to easily control said magnetic field within a short time, by mounting holding plates having permanent magnetic small pieces for controlling a magnetic field arranged and fixed thereto and arranging said plates in relation to opposed permanent magnets. CONSTITUTION:Pole pieces 2 composed of a high permeability material such as soft iron are fixed to one ends of a pair of disc-shaped permanent magnets 1 to be opposed to each other and the other ends thereof are connected by yokes 3 composed of a high permeability material such as soft iron to generate a magnetic field in the gap 4 between the pole pieces 2. A human body is introduced into said gap partially or entirely to perform diagnosis. Annular projections having an almost triangular shape composed of a predetermined inner diameter and a predetermined height are provided to the peripheral edge of the opposed surfaces thereof. Further, holding plates 7 having permanent magnet small pieces 6 arranged thereto are provided to the recessed parts of the opposed surfaces of the pole pieces. As a result, dimension can be also reduced and this apparatus can cope with not only lower order non-uniformity but also higher order non-uniformity.
Patent JP-H08173811-A (JP)
Title: Catalyst for purification of exhaust gas and its production
Inventor: YAMAMOTO SHINJI
IPC: B01D53/86
Filed: 1994-12-26
Abstract: PURPOSE: To obtain a catalyst capable of enhancing NOx removing performance in an excess oxygen-contg. atmosphere in which the conventional catalyst has no activity and capable of removing NOx in exhaust gas over the wide temp. region from a low temp. to a high temp. CONSTITUTION: This catalyst is made of a silver carried alumina-based multiple oxide obtd. by carrying silver on an alumina-based multiple oxide and represented by the formula, Aga /Xb Alc Od (where X is at least one kind of element selected from among Fe, Co, Ni, Cu and Zn; (b) and (c) show the atomic ratio between the element; (b) is 0.005-0.5 when (c) is 2.0; (a) is 0.1-10wt.% (expressed in terms of elemental silver); and (d) is the number of oxygen atoms required to satisfy the valence of each component).
Patent JP-H05157804-A (JP)
Title: Circuit tester
Inventor: MORITA TOSHIYUKI
IPC: G01R31/26
Filed: 1991-12-06
Abstract: PURPOSE:To prevent in advance the destruction of an electronic circuit element and the occurrence of the data error of a test result, caused by the erroneous contact of a contactor to a point other than points to be contacted on an object for test. CONSTITUTION:A circuit tester is composed of a contactor base 6 which is fixed to the top board 5 of the tester and plural fixed contactors 3 are established thereon in parallel, a movable partition board 1 which is established among the fixed contactors 3 and moves in the direction of a fixed contactor 3 axis, and a spring 4 which protrudes the tips of the movable partition board 1 beyond the tips of the contactors 3.
Patent JP-H02269034-A (JP)
Title: Sterile, hydrophobic polytetrafluoroethylene membrane laminate
Inventor: POORU GOORUDOSUMISU
IPC: B01D19/00
Filed: 1989-12-14
Abstract: PURPOSE: To avoid a use of a toxic sterile composition by incorporating hydrophobic property, and a burst strength of at least 10 psi in a forward direction after exposing with a γ-ray, thereby improving a pressure resistance. CONSTITUTION: A sterile hydrophobic composite porous membrane is obtained by heating and laminating a porous polytetrafluoroethylene membrane on a porous polyester web base. This laminate is sterilized by exposing it with a γ-ray, and a sterile laminate having no support has a burst strengths of at least 10 psi in both forward and reverse directions of the filtering. Thus, it can endure against an enhanced pressure and a sterile PTFE membrane for avoiding a use of a toxic sterile composition is obtained.
Patent JP-2000133372-A (JP)
Title: Opening/closing structure of plug insertion port
Inventor: WATANABE SATORU
IPC: H01R13/33
Filed: 1998-10-27
Abstract: PROBLEM TO BE SOLVED: To provide a structure for a plug inserted through an introducing hole in the front surface of a casing to be inserted in a plug insert port for connection including a casing compacted in the direction over the height and across the width as much as practicable. SOLUTION: A plug insert port 21 opening directed ahead is formed in a casing 10, which is equipped at the front surface with introducing holes 11a (and 13a) for introducing a plug P to be inserted into the port 21, and a plate- form dustproof cover 30 having flexibility is installed in front of the plug insert hole 21, and the plug insert port 12 is opened and closed by sliding the dustproof cover 30 as following a folding locus from the open face of the plug insert port 12 to the side face.
Patent JP-H09162657-A (JP)
Title: Microwave power amplifier circuit
Inventor: WATANABE SHIGERU
IPC: H01P5/08
Filed: 1995-12-12
Abstract: PROBLEM TO BE SOLVED: To provide the microwave power amplifier circuit with less distortion whose operation is stable. SOLUTION: In the microwave power amplifier circuit using a field effect transistor(FET) 15 with a gate electrode G receiving a signal, a drain electrode D providing an output of a signal, a source electrode S connecting to ground, a transmission line 21 whose length is nearly 1/8 of a wavelength of the input signal and whose one end is opened is connected to the gate G of the field effect TR 15.
Patent JP-H02169985-A (JP)
Title: Rotary type dryer for powder or the like
Inventor: YAMAMOTO YOSHIO
IPC: F26B17/22
Filed: 1988-12-21
Abstract: PURPOSE:To dry rapidly and homogeneously in a simple structure by independently rotating an inner cylinder and an outer cylinder, providing a plurality of annular racks inclined downward at a predetermined interval between the outer surface of the inner cylinder and the inner surface of the outer cylinder, supplying hot blast to the inner and outer cylinders, and supplying material to be dried such as powder from the top into the interior of the outer cylinder. CONSTITUTION:A material 5 is continuously supplied from a hopper 6 attached to the top of an outer cylinder 2, dropped on an annular rack 11 attached to an inner cylinder 1, and is AC-heat exchanged with hot blast on the way of dropping. The material 6 dropped on the annular rack 11 is operated by a centrifugal force due to its rotation with respect to a force tending to sink in its gravity direction, a suitable amount is flown outside from the outer end of the annular rack 11 to be dropped on the annular rack 1 attached to the outer cylinder 2. Thus, the material 5 is alternately moved a plurality of times on the annular racks 11, 21, heat-exchanged with the hot blast, dried progressively by the conduction, radiation heating on the annular racks, and discharged through a chute 7.
Patent JP-H11155318-A (JP)
Title: Swing case for walking type rice transplanter
Inventor: NISHI YOICHIRO
IPC: A01C11/02
Filed: 1997-11-25
Abstract: PROBLEM TO BE SOLVED: To reduce the operation power of a side crutch structure on a crutch shaft transmitting a power to a swinging case by arranging a transmission case in the front part of a walking type rice transplanter, arranging a transplanting part at the rear part of the transmission case, protruding a swing case turning up and down by a lifting and lowering structure, from a side part of the transmission case, and pivotally supporting a traveling wheel at the rear position of the swing case. SOLUTION: This swing case 25 has plural speed reduction mechanisms arranged in the swinging case 25, a double reduction mechanism arranged in the swing case 25, and a reduction shaft 60 installed at nearly center between a traveling output shaft 47 and an axle. The swing case 25 is constituted so that a sprocket 56 on a traveling output shaft 47 in the first reduction mechanism and the sprocket 63 on the reduction shaft in the second reduction mechanism may have the same number of teeth, and the sprocket 62 on the reduction shaft in the first reduction mechanism and the sprocket 64 on the axle in the second reduction mechanism may have the same number of the teeth.
Patent JP-H02167876-A (JP)
Title: Surface-coated ceramic sintered compact and surface finish of ceramic sintered compact
Inventor: CHIBA HIROHIDE
IPC: C04B41/81
Filed: 1988-12-21
Abstract: PURPOSE:To obtain the title sintered compact with film of excellent in resistance to impact, acid and wear, etc., highly persistent in its surface color tone by spraying on the surface of a ceramic sintered compact a molten polymeric powder coating or its combination with inorganic granules to effect setting. CONSTITUTION:The surface of one of a variety of ceramic sintered compact is sprayed with a molten polymeric powder coating or its combination with inorganic granules to effect setting. Said powder coating is e.g. PE-, PP-, thermosetting epoxy-based coating. Said inorganic granules are required to be robust ones in order to impart the coating layer with wear resistance, being e.g. glass beads, silica powder, sand. The film of the surfacecoated ceramic sintered compact obtained is thick, being excellent in resistance to wear, impact, water and chemicals including acid, water proofness, etc. Furthermore, said film is clear in surface color, causing virtually no color fading and being markedly high in the adhesive force to the sintered compact as matrix.
Patent JP-H03184434-A (JP)
Title: Remote control device
Inventor: KAKIMOTO KOJI
IPC: H04B10/114
Filed: 1989-12-13
Abstract: PURPOSE:To perform remote control even with a remote controller which emits a signal different from that of the remote controller of electronic equipment by providing the remote controller which outputs a command corresponding to a setting switch with a signal from a decoder. CONSTITUTION:The setting mode of the remote control device is cancelled by operating all the remote control switches of the remote controller 2 and operating a setting apparatus 4 after storing signals corresponding to those switches into a memory part 5. After that, when the remote controller 2 is operated, for example, a power-on operation, the signal of power-on is emitted in an infrared ray, and the signal of infrared ray is emitted from an infrared ray receiving part 3. At this time, a reception signal stored in the memory part 5 is read out sequentially, and the reception signal is compared with a read out signal at a decoder part 6, and a coincident signal is decoded to the signal identifiable to which setting switch of the setting apparatus 4 it is conformed, and is outputted to a controller part 7.
Patent JP-H10169944-A (JP)
Title: Fluidized layer control method in waste thermal decomposition furnace
Inventor: MINOURA TADAYUKI
IPC: B01D53/64
Filed: 1996-12-03
Abstract: PROBLEM TO BE SOLVED: To achieve a stable combustion of a melting furnace by accurately recovering valence metal such as aluminum while the gasifying of wastes by thermal decomposition of a fluidized layer is stably kept holding the temperature of the fluidized layer within a specified range to maintain an exhaust gas composition within a specified range. SOLUTION: In waste disposing equipment which is provided with a thermal decomposition furnace having a fluidized layer comprising fluidized particles on a bottom part thereof to thermally decompose wastes charged and a gas combustion means to burn a thermal decomposition gas exhausted from the heat decomposition furnace, the wastes with a low level calorific value of 2,000-2,500kcal/kg are adjusted between 0.31-0.39 in air ratio according to the low level calorific value thereof to keep the temperature of the fluidized layer at 550-650 deg.C. Thus, part of the fluidized particles are drawn out from the thermal decomposition furnace to separate aluminum from the fluidized particles.
Patent JP-H09166115-A (JP)
Title: Coupling method for placing form and reinforcing member and coupling tool
Inventor: KANEZASHI MASAO
IPC: F16B19/10
Filed: 1995-12-12
Abstract: PROBLEM TO BE SOLVED: To simply and high-efficiently couple placing forms and a reinforcing material without needing a skill and to easily recover a coupling tool after concreting. SOLUTION: A coupling method is such that placing forms 12 and a reinforcing material 14 are laminated with a plurality of holes 13 and 15 matched with each other, a coupling tool is inserted in the matched holes, the two members are coupled together. The coupling tool comprises an insert, consisting of a cylindrical base part 5 having a screw 6 and a division part 7, and a core rod 3. The division part of the insert is inserted in the matched holes from the reinforcing material side and a core rod is then inserted in the inserted insert from a cylindrical base part. The division part 7 is locked in a spreading state on the back 12b of the placing forms 12. A nut 4 is joined in a screwed-in state with the screw 6 of the insert for fastening. In recovery, the core rod is pulled off, and the insert is then pulled off.
Patent JP-2000144171-A (JP)
Title: Production of fatty acid ester and its use
Inventor: IWAKURA KAZUNORI
IPC: C10L10/08
Filed: 1998-11-13
Abstract: PROBLEM TO BE SOLVED: To efficiently obtain a fatty acid ester that is useful as a diesel fuel, a lubricant base oil, a fuel additive or the like in high yield by allowing fat and/or oil to react with an alcohol in the presence of a lanthanoid metal alkoxide. SOLUTION: Fat or oil, for example, waste fat and oil or waste food oil is allowed to react with an alcohol represented by formula I (R4 is a 1-10C hydrocarbyl, a hydrocarbyl substituted with a 2-10C hydrocarbyloxy), for example, methanol or the like in the presence of a lanthanoid metal alkoxide represented by formula II (Ln is one of lanthanoid metal elements; R1-R3 are each a 1-10C alkyl), preferably in an amount of 0.1-30 mol% based on the fat and oil to give the objective fatty acid ester.
Patent JP-H01124979-A (JP)
Title: High density coaxial connector
Inventor: DEIMITORI JII GURAABU
IPC: H01R13/658
Filed: 1987-12-21
Abstract: PURPOSE: To control the impedance of a signal path to a required value, and set signal speed to a required value by providing a required gap between a connector housing and terminals through the shape of insulation material. CONSTITUTION: Respective terminals 18 have shapes adapted to the shapes of terminal accepting paths 12, 14, and the bent portions 64 of the terminals 18 cause signal reflection to be minimum so that high speed signals can be correctly transmitted through the connector terminals 18. Cylindrical dielectric members 48 and spiral dielectric members 56 coaxially positioning around the terminals 18 provide gaps offering such characteristic impedance capable of transmitting the high speed signals correctly through the terminals 18 between the housings 22, 24 and the terminals 18 and inside the dielectric member themselves cooperating with the walls of the paths 12, 14 and the terminals 18. Thereby, the signals can be high speed-transmitted, and the reflection and discontinuity distorting the signals can be minimized.
Patent JP-H09142380-A (JP)
Title: Rolling reducing device for floating body structure
Inventor: WATANABE KANAME
IPC: B63B39/03
Filed: 1995-11-17
Abstract: PROBLEM TO BE SOLVED: To provide a rolling reducing device effectively functioning against waves of all cycles and reducing the rolling of a floating body structure by providing multiple rolling reducing tanks on the floating body structure, forming inflow/outflow ports on tank bottom faces, and providing propellers generating thrust in the vertical direction. SOLUTION: Ropes 1a are connected to four corners of a floating body structure 1 at one end. Rolling reducing tanks 2 are provided at four corner sections of the floating body structure 1. The rolling reducing tank 2 is a tank provided to reduce the rolling of the floating body structure 1, rolling is reduced by the weight of the water in the tank 2, and the lower side is submerged in the water. The water for reducing rolling flows into the tank 2 or flows out of it through the inflow/outflow port 3 of the rolling reducing tank 2. A propeller 4 provided at the inflow/outflow port 3 reduces rolling via the difference of weight of the water in the rolling reducing tank 2. This rolling reducing device effectively functions against waves of all cycles and can reduce the rolling of the floating body structure 1.
Patent JP-H02169908-A (JP)
Title: Method of detecting incineration completion point in refuse incinerator
Inventor: TOMIHAMA SOZO
IPC: F23G5/20
Filed: 1988-12-22
Abstract: PURPOSE:To continuously and quantitatively detect the incineration completion point by inscribing a positioning mark on the inner circumferential surface of a rotary stoker, and determining the location of the incineration completion point by comparing the image of said marking with the image of the actual burning condition. CONSTITUTION:After initializing the image processing device, the grid-patterned marking 60 inscribed on a rotary stocker 4 is taken by a camera 21. The image is stored in an image memory as the calibration image, which is readable. For such a calibration image, calibrating data of the incineration completion point is set. By assuming that the incineration completion point 65 is located in the lowermost part of the flame 61, the horizontal profile of the flame 61 is recorded, and, based on said profile, the coordinates Q (x, y) of the incineration completion point 65 is determined in the image space. Based on the calibration data, a computation is made as to where the point Q (x, y) in the two-dimensional image is located in the three-dimensional space on the rotary stoker 4 so as to determine the location of the incineration completion point 65.
Patent JP-H09180459-A (JP)
Title: Voltage boosting circuit of semiconductor memory device
Inventor: ZEN SHIYUNEI
IPC: G11C11/407
Filed: 1996-12-04
Abstract: PROBLEM TO BE SOLVED: To improve the set-up characteristics of a voltage boosting circuit and at the same time prevent the reduction in the characteristics of the reliability in a gate oxide film. SOLUTION: A voltage boosting circuit includes a voltage boosting means 10 for outputting a boosted voltage which is higher than a first supply voltage by receiving the first supply voltage, a first precharge means 20 for precharging the output of the voltage boosting means 10 by receiving the first supply voltage, and a second precharge means 40 for precharging the output terminal of the voltage boosting means by receiving a second supply voltage.  The first precharge means 20 includes at least one diode which is connected in series to the output terminal of the voltage boosting means 10 and includes at least two diodes which are connected in series between the second supply voltage and the output terminal of the voltage boosting means 10 and the number of diodes of the second precharge means 40 is larger than the number of diodes of the first precharge means 20 at least by one, thus preventing the reduction in the characteristics of the reliability of the gate oxide film of a transistor where a boosted voltage is applied.
Patent JP-H11159282-A (JP)
Title: Tunnel excavator
Inventor: KAMIMURA TAKEO
IPC: E21D9/06
Filed: 1997-11-26
Abstract: PROBLEM TO BE SOLVED: To provide a tunnel excavator that can positively confirm the presence of a metal piece passing in a sludge pipe so as to positively prevent the damage of a suction pump. SOLUTION: Excavated soil is discharged by a suction pump 26 through a sludge pipe 21. A fitting piping 31 protrusively provided with a storage chamber 31b is provided on the suction pump suction port side of the sludge pipe 21. A coil 34 is disposed in the storage chamber 31b, and a linear 35 is provided in the storage chamber 31b to fix the coil 34. A signal converter 36 is electrically connected to the coil 34, and the signal converter 36 is electrically connected to a control device 50 for controlling the operation of the suction pump 26, a hydraulic motor 16, and the like.  In the case of a metal piece 100 passing in the sludge pipe 21 along with the soil, the metal piece passes the magnetic field generated by the coil 34 with a high frequency current applied thereto from the signal converter 36, and the impedance of the coil 34 is changed by the magnetic field generated by an eddy current generated inside the metal piece 100. The signal converter 36 therefore outputs a detection signal to the control device 50 to inform that the metal piece 100 has passed.
Patent JP-2000138098-A (JP)
Title: Delay starter circuit for hot cathode discharge tube
Inventor: SUZUKI HARUMI
IPC: H05B41/24
Filed: 1998-10-30
Abstract: PROBLEM TO BE SOLVED: To provide a delay starter circuit capable of shortcircuiting secondary voltage when turning on a power supply, using two MOSFETs and a DC power supply, and opening the secondary voltage after presetting time. SOLUTION: A discharge tube LMP is connected to a quick-acting lighting circuit, using an inverter circuit INV operable on a DC power supply E. The drains of FETs Q1 and Q2 are respectively connected to both cathodes of the discharge tube LMP, and the sources of Q1 and Q2 and a resistor R1 are connected to the negative terminal of the DC power supply E. In addition, a capacitor C2 is connected to the positive electrode of the power supply E and the gates of Q1 and Q2 are connected to other terminals of R1 and C2. When the power supply E is first turned on, Q1 and Q2 are conductive to each other, thereby shortcircuiting both ends of LMP. As a result, only the cathode of LMP is preheated and Q1 and Q2 become open after presetting time. Then, LMP is turned on, due to the application of voltage equal to or above starting voltage.  According to this construction, a delay starter circuit is formed to be compact, lightweight, inexpensive and low loss type.