baber/WOPTO huggingface dataset:
Patent JP-H0297626-A (JP)
Title: Separation of noble-metal element
Inventor: TANAKA MICHIHIRO
IPC: C22B11/02
Filed: 1988-10-04
Abstract: PURPOSE:To separate noble-metal elements with simplified equipment by adding a reducing agent to an acidic soln. contg. gold and platinum-group elements to deposit gold and Pd, adding a metallic reducing agent to the filtrate to deposit Rh, and separating the Rh from platinum. CONSTITUTION:The hydrochloric aicd-acidified deposit formed in the refining of copper, etc., consisting essentially of silver chloride, and contg. concentrated noble-metal elements such as gold and platinum-group elements is leached by aq. ammonia, the residue is further leached by aqua regia, the leachates are adjusted to <=pH4, hence silver chloride is deposited and removed, and an acidic soln. contg. gold and platinum-group elements is obtained. A reducing agent (hydroxylammonium chloride, etc.) is added to the soln. to deposit and separate gold and Pd, a metallic reducing agent (Zn sheet, etc.) is added to the filtrate to reduce and deposit Rh, and the Rh is separated from platinum in the filtrate. By this method, noble-metal elements are efficiently separated from the deposit.
Patent JP-H07104291-A (JP)
Title: Liquid crystal display device
Inventor: NAKAMURA HIDETAKA
IPC: G02F1/13357
Filed: 1993-10-05
Abstract: PURPOSE:To provide a liquid crystal display device capable of uniformly radiating a lighting beam on a liquid crystal pannel without lowering the availability of light. CONSTITUTION:This device is constituted so that a light emitting point 1a of a xenon lamp 1 is arranged at a focal point position of a paraboloid reflector 2, and a converging lens 7 converging either one side of a P polarization beam and an S polarization beam separated by a polarizing splitter 3 is provided, and a first reflection body 8 reflecting a luminous flux transmitting through the converging lens 7 in parallel to the liquid crystal pannel 4 is provided, and a second reflection body 9 reflecting the luminous flux reflected by the first reflection body 8 to the central part of the liquid crystal display pannel 4 is arranged on the optical path of the lighting beam A irradiating the liquid crystal display pannel 4 from the polarizing splitter 3, and the luminous flux A passing through the polarizing surface 3a of the polarizing beam splitter 3 and the luminous flux B refelcted by the polarizing surface 3a of the polarizing beam splitter 3 irradiate the liquid crystal display pannel 4 in a concentric circular shape.
Patent JP-H1186509-A (JP)
Title: Device and method for recording in and/or reproducing from tape
Inventor: TAKAYAMA YOSHIHISA
IPC: G11B27/30
Filed: 1997-09-12
Abstract: PROBLEM TO BE SOLVED: To provide a tape streamer device unloading/loading in a short time. SOLUTION: The tape streamer device is provided with a motor drive and servo circuit 150 having a traveling control function controlling the traveling of a magnetic tape and a system controller 161 having a control function controlling the motor drive and servo circuit 150, moving the magnetic tape to an eject area provided in a final position in a partition just before the partition that the tape is positioned at present and ejecting a tape cassette.
Patent JP-H0985622-A (JP)
Title: Electrolytic in-process dressing grinding method and device
Inventor: ENOMOTO TOSHIYUKI
IPC: B24B53/00
Filed: 1995-09-27
Abstract: PROBLEM TO BE SOLVED: To perform a stable and highly accurate grinding process at high efficiency. SOLUTION: A conductive grinding wheel 1 is selected at a positive mode and an electrode 2 at a negative mode, upon the selection of a switch 7 at a contact 7a, and a grinding fluid is made to flow from a nozzle 5 across the grinding wheel 1 and the electrode 2, thereby performing the conventional electrolytic in-process dressing process. When the switch 7 is selected at a contact 7b, the grinding wheel 1 is selected at a negative mode and a conductive workpiece 6 at a positive mode. As a result, the workpiece 6 is electrolytically eluted in the grinding fluid. In this way, a highly accurate electrolytic in-process dressing grinding process, and a highly functional electrolyte elution process are performed by selecting the contacts 7a and 7b.
Patent JP-S62108467-A (JP)
Title: Alkaline zinc storage battery
Inventor: FURUKAWA SANEHIRO
IPC: H01M10/24
Filed: 1985-11-06
Abstract: PURPOSE:To improve the cycle life of the battery in the caption by composing a zinc electrode mainly with zinc while having metal indium, and oxides of indium and thallium contained therein and employing an alkaline electrolyte containing germanium ions. CONSTITUTION:A zinc electrode 1 is produced by making at least one kind of zinc or zinc oxide as its main component and having metal indium, an oxide or hydroxide of indium and an oxide or hydroxide of thallium contained therein. And, an alkaline electrolyte containing germanium ions is employed. Then, a nickel electrode 2, a separator 3, a liquid holding layer 4, etc. are assembled together to form an alkaline zinc storage battery. Consequently, inner short due to growth of tree-like or sponge-like zinc from the zinc electrode 1 can be eliminated while reduction of voids on the surface of the zinc electrode 1 can be suppressed by the germanium ions, resulting in improvement of the cycle life.
Patent JP-H0884532-A (JP)
Title: Planting structure for aquatic plant
Inventor: SHIRAISHI TERUO
IPC: A01G1/00
Filed: 1994-09-19
Abstract: PURPOSE: To plant aquatic plants at the water's edge of a river, etc., so as not to be washed away. CONSTITUTION: Cylindrical pots 13 having shape retention comprising a water- permeable material made of a synthetic resin such as a drain material are embedded between stones 12 such as cobblestone in water-permeable boxes arranged at the water's edge. A soil material composed of an artificial and a natural materials is packed into the cylindrical pots 13 and aquatic plants 17 are planted in the pots.
Patent JP-H02100685-A (JP)
Title: Polypeptide secretion expression vector, microorganism transformed with same vector and production of polypeptide by same microorganism
Inventor: KATO CHIAKI
IPC: C12R1/07
Filed: 1988-10-05
Abstract: PURPOSE:To obtain a desired polypeptide in high productivity and easy separation and purification by producing a desired polypeptide having relatively low molecular weight as a fused protein with a specific penicilase in subjecting the desired peptide to in vitro secretion production using Escherichia coli. CONSTITUTION:DNA coding a desired polypeptide having relatively low molecular weight is coupled to DNA coding penicillinase derived from an alkalophilic Bacillus through DNA coding amino acid sequence specifically recognized by proteinasae having high specificity such as urokinase or DNA coding amino acid sequence specifically recognized by chemical substance such as cyanogen bromide. A microorganism is transformed by a vector in which the resultant coupled DNA is integrated and a fused protein is produced by the transformed microorganism. The resultant fused protein is separated by urokinase or cyanogen bromide to provide the desired polypeptide.
Patent JP-H04135098-A (JP)
Title: Press die assembly
Inventor: YAMADA TOYONOBU
IPC: B21D28/14
Filed: 1990-09-21
Abstract: PURPOSE:To obtain a product high in dimensional accuracy, short of scrap and excellent in material yield by forming the external shape of the product by forging. CONSTITUTION:An upper die repeats the reciprocating motion that it falls from the upper limit position to the lower limit position, then, rises from the lower limit position to the upper limit position. While the upper die rises to the upper limit position, an air cylinder 30 makes one reciprocating motion to rotate a disk 21 by 90 degrees in the direction of an arrow B. A motion that an air cylinder 57 reciprocates a press plate 58 one time and a motion that a pair of rollers 48 of a transfer device 47 is rotated and driven by a motor to feed a wire 46 in the direction of an arrow C until it comes in contact with a stopper 49 are conducted alternately. Such motions of each constitutional section perform various workings at each part, at the same time and form a product from the wire 46.
Patent JP-H0192544-A (JP)
Title: Engine fuel control device
Inventor: YASHIKI SEIJI
IPC: F02D41/00
Filed: 1987-10-05
Abstract: PURPOSE:To prevent the operatability from deteriorating, in an engine in which the amount of fuel is controlled by a back-up auxiliary fuel control means when the voltage of a battery becomes lower than a predetermined value, by inhibiting the auxiliary fuel control means from controlling the amount fuel other than the period of starting the engine. CONSTITUTION:In a duty control unit 31 for performing duty control of a fuel injection valve 27, there is provided a main fuel control means 41 for determining a fuel amount in accordance with received output signals from various sensors 24 and delivering a fuel injection pulse signal having a pulse width corresponding to thus determined fuel amount. There is provided a back-up auxiliary fuel control means 42 for controlling a fuel amount suitably for starting the engine in accordance with an engine rotational speed and an intake-air amount. When the starter switch 40 is turned on, if an abnormal detecting means 43 detects an abnormality of the main fuel amount control means 41, or if a comparator 44 delivers a high level signal since the voltage of a battery becomes lower than a reference voltage, the auxiliary fuel amount means 42 controls the amount of fuel.
Patent JP-H02108463-A (JP)
Title: Method and device for controlling transformer reference welding current source
Inventor: NIKORAI IWANOBUICHI JIYUURA
IPC: B23K9/10
Filed: 1988-10-05
Abstract: PURPOSE: To contrive protection of welding current source by setting the voltage such that, at the point of time when a signal appears, it blocks the protective open- circuit of a transformer-based welding current source but that the blocking duration is not more than an allowable effective time of a voltage exceeding a safe voltage for a welder's life. CONSTITUTION: When a welding process is extended beyond an allowable period T1 , a transformer-based welding current source is turned off. When a non-load full voltage is added to the welding current source, examination is made on the continuation of the current that is beyond the first limiting current level I1 but that is at or below the second limiting current level I2 . With a current interruption occurring, a signal U6 , U7 is formed which transmits information at the end of the start of the current interruption in the non-load full voltage. At the point of time t6 , t7 when the signal appears, the voltage is set such that it blocks the protective open-circuit of the transformer-based welding current source, but that the blocking duration is not more than the allowable effective time of the voltage U2 having a value in excess of a specific safe voltage U2 for a welder's life.  As a result, the welding current source can be protected.
Patent JP-H04130714-A (JP)
Title: Projection exposure method
Inventor: KASUGA TAKU
IPC: H01L21/027
Filed: 1990-09-21
Abstract: PURPOSE:To satisfy a conflicting request for the resolution and the depth of focus by a simple method wherein a projection exposure operation is executed in a state that an optical-material layer whose refractive index is different from that of a light-path medium has been formed in one part of a photomask so as to correspond to the difference in level at a substrate. CONSTITUTION:A difference in level exists on a wafer W; and an optical- material layer whose refractive index is different from that of the air is formed selectively in one part of a photomask PM. The photomask PM is formed in the following manner: a light-shielding layer 2 in a prescribed pattern is formed on a substrate 1 composed of a glass or the like; and image-formation face shifters 3a, 3b, having a film thickness T, in a prescribed pattern, are formed of transparent optical materials. The refractive index (n) of the image- formation face shifter 3a is higher than the refractive index (n0=1) of the air; and the refractive index (n) of the image-formation face shifter 3b is lower than the refractive index of the air. That is to say, when this invention is applied, it is possible to obtain images of the same size and to realize uniform resolution in any place on the wafer W having the difference in level irrespective of whether n>1 or n<1.
Patent JP-H0192831-A (JP)
Title: Adding circuit
Inventor: ARIMA MASAKI
IPC: G06F7/50
Filed: 1987-10-02
Abstract: PURPOSE:To shorten the propagation delay time of carry input by executing two kinds of operations for a case having a carry for the least significant bit (LSB) of data and a case having no carry to the LSB in parallel at the time of data addition and selecting one of the results of the two operations. CONSTITUTION:The least significant bits of two 2-bit added data are connected to the data input terminals A, B, of a multiplexer 9 and their most significant bits are connected to the data input interminals A, B of a multiplexer 10. Since the carry input CARRY of a control input terminal SEL is '0', the input data of the data input terminal A are outputted to an output terminal Y, and when the carry input CARRY is '1', the input data of the data input terminal B are outputted to the output terminal Y in each multiplexer, 2-bit added data output D1-0 is '10' when the carry input CARRY is '0' and the output D1-0 is '1' when the carry input CARRY is '1'. Since the multiplexers 9, 10 selected either one of inputs, the propagation delay time of the carry input can be shortened.
Patent JP-H03110232-A (JP)
Title: Conjunction member of post and beam
Inventor: MATSUO HIDENARI
IPC: E04B1/24
Filed: 1989-09-26
Abstract: PURPOSE:To prevent a local deformation, by connecting a steel post with a steel beam via a flange and a connection metal block and providing a reinforcing plate between the bottom plate of the connection metal block and the surface of the flange and by welding them as a unit. CONSTITUTION:A reinforcing plate 6 provided with a partition part 6a along the axial direction of a post 1 in the middle of a flange 1a is welded for fixing them on the surface of the flange 1a of the post 1 opposite to the bottom plate 31 of a conjunction metal block 3. And a bevel end is cut for secure welding at the edge 6b corresponding to the end of the flange 1a of the reinforcing plate 6. And further, I-form bevel welding is applied between the reinforcing plates 6 at the middle of the flange 1a, to make 0.5t<=a<=1.5t, where a = root distance, t = thickness of the reinforcing plate and to make 1/3<=t/to<=3, where to = thickness of flange 1a. In this way, the conjunction part of post-beam can be prevented from deterioration thereof.
Patent JP-2000081648-A (JP)
Title: Electric flash light emission synchro-shutter device
Inventor: ISHIKAWA TADAAKI
IPC: G03B9/36
Filed: 1998-09-04
Abstract: PROBLEM TO BE SOLVED: To provide an electric flash light emission synchro-shutter device which is synchronized with a high-speed shutter by obtaining accurate electric flash light emission timing and also by which a longer synchro-time is obtained. SOLUTION: An optical element 2 is installed at a specified position before a position where a front curtain is totally opened. It is detected that the front curtain passes the position, and counting for a specified time is executed by a time counting part 6. When the specified time passes, a signal to turn on a stroboscope is outputted. and an electronic switch 8 is turned on by an electric flash light emission controlling part 7. An electric flash light emitting part 9 is triggered, and starts to emit light. Electric flash light emission is accurately executed without causing chattering at the point of time reaching the time when the front curtain is totally opened, so that it corresponds to a high-speed shutter.
Patent JP-H0562617-A (JP)
Title: Image formation device
Inventor: NAKAMURA NAOHITO
IPC: H01J31/12
Filed: 1991-09-04
Abstract: PURPOSE:To obtain an image of high contrast and brightness and to thin and increase the size of a device, by arranging electron emitting elements and phosphors in parallel to one another on a substrate surface, and by providing a reflecting layer for reflecting the light from an emitting body, in opposition to the substrate surface. CONSTITUTION:A pulse voltage is applied between a pair of element electrodes 15a and 15b opposed with each other on a certain element line, and electrons are emitted from a plurality of electron emitting elements 17 arranged linearly on the element line. The electron beams are ON/OFF controlled against phosphors 14 in proximity to each corresponding positive element electrode 15a by a positive/negative voltage applied corresponding to an information signal. The ON-controlled electron beams are accelerated and collide with the phosphors 14, which displays one line corresponding to the information signal. One-line display is made in the same way by element wiring electrodes 13a, 13b in close proximities to the element line. An XY matrix is formed by a scanning electrode and the phosphors, and an image is thus displayed.
Patent JP-H0986914-A (JP)
Title: Active carbon, its production and adsorption and removal of acidic component
Inventor: YOSHIKAWA MASAAKI
IPC: B01D53/52
Filed: 1995-09-28
Abstract: PROBLEM TO BE SOLVED: To obtain active carbon high in adsorption efficiency by mixing an active carbon raw material with KOH or NaOH, kneading the mixture under heating, activating the mixture at a temperature not lower than a fixed temperature, washing the mixture with water and making the content of K or Na carbonate not smaller than a specific amount. SOLUTION: An active carbon raw material such as mesocarbon micro bead, etc., is mixed with about once to 10 times as much as an activator such as KOH, NaOH, etc., by weight. The mixture is heated to 400-500 deg.C and dissolved in melt KOH or NaOH. The active carbon raw material is uniformly blended, heated to >=800 deg.C and activated to form crude active carbon containing K2 CO3 or Na2 CO3 . Then the crude active carbon is mixed with water, slurried and filtered to give the objective active carbon having 1,000-3,000m<2> /g specific surface area, 0.8-2.2ml/g pore volume and >=5wt.% of K2 CO3 or Na2 CO3 . A gas containing one or more of NO2 , SO2 , H2 S, HCl, HNO3 , formic acid and acetic acid is brought into contact with the active carbon so that the active component can be selectively adsorbed and removed.
Patent JP-2000083345-A (JP)
Title: Brushless motor
Inventor: FUKUTANI SHUJI
IPC: H02K5/173
Filed: 1998-09-04
Abstract: PROBLEM TO BE SOLVED: To attenuate transferred vibration with stability and thereby reduce noise and produced gas by forming on the inside diameter side of a cylindrical portion projections, the inside diameter of which is smaller than the inside diameter of the cylinder. SOLUTION: A fixed shaft 3 is provided with grooves 26a and 26b. Wires 15 are wound on the stator core 16 of a stator 2 via an insulating member 20 of synthetic resin in-between. A cylindrical portion 22 constituting the insulating member 20 has a plurality of projections 23 extending in the axial direction. The fixed shaft 3 and the stator 2 are precisely fixed, together with the grooves 26a and 26b in the fixed shaft 3 engaged with the projections 23 on the stator 2. Since the stator core 16 is thus fixed indirectly on the fixed shaft 3 with the cylindrical portion 22 in-between, vibration produced by currents passed through a winding 15 of the stator 2 is not transferred directly to the fixed shaft 3 and vibration which is transferred from the fixed shaft 3 to a bracket 5, base 6, cover 7 and the like is attenuated.
Patent JP-H0988265-A (JP)
Title: Rain gutter
Inventor: DEAI SOTOAKI
IPC: E04D13/072
Filed: 1995-09-28
Abstract: PROBLEM TO BE SOLVED: To conduct mounting operation easily even by an amateur while forming a proper pitch. SOLUTION: This rain gutter is constituted by integrally molding from a metal a gutter body 2 forming a gutter 1 for flowing rainwater and a mounting piece 3, which erects from the rear edge of the gutter body 2 and bends an upper section backwards, of a metal. A linear fold 4, which inclines vertically to the bottom of the gutter 1 and increases the rise length of the mounting piece 3 uniformly extending over the other end from one end in the longitudinal direction of the gutter body 2, is formed in the mounting piece 3.
Patent JP-H06103689-A (JP)
Title: Floppy disk controller
Inventor: SASAKI MASATAKA
IPC: G11B21/08
Filed: 1992-09-21
Abstract: PURPOSE:To eliminate the need for changing a step rate time to be set for the same value as a standard floppy mode at the time of a minifloppy mode by setting the step rate time for the standard floppy mode. CONSTITUTION:The standard floppy mode at the time of seek operation or the standard floppy or the minifloppy mode at the time of operation other than the seek operation is outputted in a value to be a mode signal 103 to a frequency divider circuit 2 by a mode switching circuit 1 using a seek mode signal 102. A clock signal 104 is turned into a system clock 105 of a floppy disk controller corresponding to the value of the mode signal 103 and is outputted by the frequency divider circuit 2. Thus, the floppy mode can be switched in the same manners as a conventional other than the seeking operation, and at the time of the seek operation, the standard floppy mode is inevitably effected, so that at the time of the minifloppy mode, no setting change for the step rate time is required.
Patent JP-S60139677-A (JP)
Title: Production of hexahydrotriazine compound
Inventor: NISHIMURA TOSHIAKI
IPC: C07D251/04
Filed: 1983-12-27
Abstract: PURPOSE:To obtain the titled compound useful as a rust preventing agent, etc. in high yield and selectively by easy operation with easy control of reaction, by reacting a cyclohexylamine directly with a specific amount of formaldehyde in a solvent, and adding an alkali thereto. CONSTITUTION:One mole cyclohexylamine compound expressed by formula I (R is alkyl bonded respectively to different C atoms; n is an integer 0-5) is reacted with 0.9-2.0mol, preferably 1.0-1.20mol, based on the cyclohexylamine compound, formaldehyde in 20-40wt% concentration in an inert solvent at a temperature not exceeding 50 deg.C, preferably 20-40 deg.C, and an alkali is then added to the reaction system to carry out the reaction. After completing the reaction, a sulfite is added to the reaction system to separate the formaldehyde remaining as a component in the reaction system and purified to afford the aimed compound expressed by formula II. USE:A catalyst for urethane foams, curing agent for epoxy resins and curing accelerator, coating material stabilizer, curing agent for rubber latex and vulcanization accelertor, etc.
Patent JP-H1190663-A (JP)
Title: Groove machining method with laser beam machining
Inventor: IIDA FUMIO
IPC: B23K26/04
Filed: 1997-09-16
Abstract: PROBLEM TO BE SOLVED: To provide a groove machining method with a laser beam having a clean surface where a spatter is not stuck to the right and left sides of a groove part of a work when the groove is machined. SOLUTION: In a groove machining method with a laser beam, when a groove is machined for a work W by irradiating the laser beam LB from a nozzle 11 provided at the tip of a laser beam machining head facing toward the work W to be machined, the groove is machined for the work W by keeping the condition where the optical axis C2 of the laser beam LB is always at an eccentric position in the advancing direction of the laser beam machining head from the axial center C1 of the nozzle 11 against the advancing direction of the laser beam machining head.