baber/WOPTO huggingface dataset:
Patent JP-H03115592-A (JP)
Title: Molten salt electrolytic cell
Inventor: OGASAWARA TADASHI
IPC: C25B13/04
Filed: 1989-09-28
Abstract: PURPOSE:To easily and power-savingly remove the impurity ions in a molten salt bath and to purify the bath when the bath contains impurity ions of different valencies by charging the bath into the cathode chamber of an electrolytic cell provided with a ceramic diaphragm having pores and applying a current. CONSTITUTION:The molten salt bath 5 for electrolytically refining Mg consisting essentailly of MgCl2 and contg. Fe ion as the metallic impurity is charged into the anode chamber 8 and cathode chamber 9 of the electrolytic cell having an Fe cathode 4 and a graphite anode 3 and provided with a ceramic diaphragm 6 of sintered alumina having many pores <200mum in diameter or a quartz diaphragm 6 having pores <500mum in diameter, and a DC current is applied. The Fe ion in the bath in the cathode chamber 9 is reduced, deposited on the cathode 4 and removed, and the Fe ion in the bath in the anode chamber 8 is not passed through the diaphragm 6 and left. Consequently, the Fe ion is not moved between the cathode and anode by the presence of the diaphragm 6 or repeatedly reduced and oxidized, hence power is not wasted, and a high- purity bath having a low content of impurities is obtained in the cathode chamber 9 as the material for electrolytic Mg. Since the Fe is left in the bath 5 in the anode chamber 8, the bath can be purified in the cathode chamber 9.
Patent JP-H03112605-A (JP)
Title: Release-film forming method for gypsum mold surface
Inventor: YAMAGAMI YOSHIAKI
IPC: B28B1/26
Filed: 1989-09-27
Abstract: PURPOSE:To form a molded product without adhesions, chalk marks and the like or a wall-forming interface due to unevenness of film quality and surface deformation by bringing an aqueous solution of sodium alginate into contact with the surface of a gypsum mold for a preliminarily specified period of time considering the concentration of said water solution. CONSTITUTION:A release film is formed by bringing an aqueous solution of sodium alginate of 0.1 - 0.3 wt. % concentration with the surface of a gypsum mold. The contact time of the aqueous solution with the gypsum mold surface is set in the range of an area A considering the concentration of the aqueous solution. When the concentration of sodium alginate is lower than 0.1 wt.%, the contact required for manufacturing the film requires longer to increase the water absorption volume of the gypsum mold, make the time required for drying after completing the manufacture of film longer and lower the productivity. On the other hand, when beyong 0.3 wt.%, the allowable range of contact time is narrowed to make the control of film quality difficult. Although the proper contact time of the release film agent solution is subject to some variations because of void content, water absorption power, surface roughness and the like, the suitable manufacture of film can be achieved by setting the contact time of satisfy the relationship shown in the area A.
Patent JP-S6426879-A (JP)
Title: Heat fixing device
Inventor: TORINO MITSUYASU
IPC: G03G15/20
Filed: 1987-10-07
Abstract: PURPOSE:To prevent a toner image carrier from being wrinkled by forming a nearly plane nip part between a pressure roller and a heat roller which constitute a device. CONSTITUTION:The pressure roll 1 and heat roller 2 are formed rotatably having nearly parallel axes and arranged in a press-contacting state. For example, heat resistance elastic body layers 12 and 22 are formed of substantially the same materials on the surfaces of the mandrel 11 of the pressure roll 1 and the mandrel 21 of the heat roll 2 to the same thickness and the hardness difference between the both is held within Hs15 deg.. The nip part 3 is therefore almost plane and operate to make the updown moving speed of the toner image carrier nearly equal while the toner image carrier is not bent even when passing. Consequently, even a carrier consisting of, for example, plural stacked envelopes is never wrinkled and a fixed toner image of good quality is obtained.
Patent JP-H11160007-A (JP)
Title: Induced current position detection apparatus with corrected pitch
Inventor: ANDERMO NILS INGVAR
IPC: G01D5/245
Filed: 1998-08-24
Abstract: PROBLEM TO BE SOLVED: To provide an induced current position detection apparatus that is accurately measured, manufactured at low cost, resistant to pollution, and outputs a substantially balanced signal without inconvenienced being adversely affected by the pitch-shift. SOLUTION: A transmitter winding 610 generates variable magnetic flux. To prevent each part 626, 633, and 637 of a first and a second receiver windings 620, 630 from forming a loop, the parts 626, 633, and 637 include two wires mutually overlapped and form no loops. To switch the receiver windings 620, 630 to both sides of a printed circuit board 650, multiple through holes 652 are installed in the printed circuit board 650. This arrangement provides an insulated intersection in overlapping parts between loops 622, 624, 636, and 638 of the first and the second receiver windings 620, 630.
Patent JP-2001073174-A (JP)
Title: Pretreating method to plating
Inventor: HARA YUICHIRO
IPC: C23G3/00
Filed: 1999-09-07
Abstract: PROBLEM TO BE SOLVED: To provide a new pretreating method to plating capable of easily and effectively executing the removal of an oxidized film and surface roughening treatment requiring much time and cost among plating pretreatments. SOLUTION: The object 1 to be plated prior to a plating treatment is dipped into water, in the water, a high pressure water stream is jetted to the optional plating face in the object 1 to be plated to generate erosion, so that an oxidized film 2 on the surface is removed, and simultaneously, the surface is roughened into a spongy shape. In this way, the plating pretreating stages are simplified to improve the treating efficiency, and moreover, the adhesion of the plating film 4 for a base material 3 by anchor effect remarkably is improved.
Patent JP-H0197163-A (JP)
Title: Switching power supply circuit
Inventor: YANO YASUSHI
IPC: H02M3/00
Filed: 1987-10-07
Abstract: PURPOSE:To decrease a peak current by constituting a rush current preventing means of a constant-current circuit. CONSTITUTION:A switching power supply circuit is equipped with an input power supply 1, DC-DC converter 2, input capacitor 3 and a starting switch 6, and a rush current preventing means is provided between these starting switch 6 and input capacitor 3. Here the rush current preventing means is constituted of a constant-current circuit 4. A short-circuiting element 5 is connected in parallel with the circuit 4 between its both terminals. Thus allowing a constant current to flow into the input capacitor 3 by the constant current circuit 4 in the time of starting, terminal voltage of the input capacitor 3 rises in a fixed gradient. Accordingly, the input capacitor 3, even when its terminal voltage approaches the voltage of the input power supply 1, prevents the terminal voltage from decreasing its rising speed.
Patent JP-H04135121-A (JP)
Title: Current conduction device of wire electric discharge machine
Inventor: FUTAMURA SHOJI
IPC: B23H7/10
Filed: 1990-09-21
Abstract: PURPOSE:To extend an endurance life of electrifiers by forming an internal peripheral surface of a guide hole by arc surfaces, protruded relating to a center axis of the guide hole, while constituting the electrifier such that it is controlled turnably about the center axis of the guide hole of a wire electrode. CONSTITUTION:Power is fed to a wire electrode 13 through a holder case 4 with a terminal of a power supply lead wire 5 connected, electrifier holder 3 and electrifiers 1. The electrifiers 1 are constituted so as to be controlled turnably(direction of arrow mark b) about a center axis (a) of the electrifiers 1. That is, by turning the electrifiers 1 in the direction of the arrow mark (b), a contact position of the wire electrode 13 relating to an internal peripheral surface of a guide hole 2 can be moved. For instance, when the electrifiers 1 are turned in the direction of the arrow mark (b) at each time after the predetermined electric discharge :machining time, worn parts 6, generated in the internal peripheral surface of the guide hole 2, are averaged along the internal peripheral surface of the guide hole 2. In this way, an endurance life of the electrifiers 1 can be extended.
Patent JP-H07111068-A (JP)
Title: Disk recording and reproducing device
Inventor: ARAMAKI JUNICHI
IPC: G11B27/036
Filed: 1993-10-08
Abstract: PURPOSE:To provide a disk recording and reproducing device having a function stopping a recording while detecting an ineffective recording state such as a silence. etc., and a function separating an ineffective recording part from an effective recording part. CONSTITUTION:In a disk recording and reproducing device which a disk 1-16 having a program area capable of the recording and reproducing and an UTOC area is made to be a recording medium, a recording control is performed by a system controller 4 based on the detection output of a level detector 3 detecting voice levels indicated by audio data to be recorded in the program area. Then, the recording of audio data is stopped in a case that a time when a voice level is lower than a prescribed level reaches a prescribed time and UTOC data to be recorded in the UTOC area are rewritten so that data for a prescribed time in the final part of audio data are divided as data for other musics.
Patent JP-H1198145-A (JP)
Title: Atm communication equipment and control method therefor
Inventor: YAMAGUCHI TAKESHI
IPC: H04L12/28
Filed: 1997-09-18
Abstract: PROBLEM TO BE SOLVED: To provide an ATM asynchronous transfer mode communication equipment that has a management means that prevents the deterioration of performance efficiently in a connection management effective in VPI(virtual path identifier) and VCI(virtual channel identifier). SOLUTION: An interface circuit 33 is arranged between a processor 21 and a connection management table 32. In the case of retrieving an address from data of the table, retrieved data are set to the interface circuit 33 and the interface circuit 33 conducts data read and comparison sequentially in the connection management table 32 autonomously to output the result to the processor 21.
Patent JP-H08125299-A (JP)
Title: Flexible printed board and electronic apparatus using the same
Inventor: MORIOKA SEIGO
IPC: H05K1/14
Filed: 1994-10-19
Abstract: PURPOSE: To realize a greater width of a board coupling section, formation of a wiring pattern without fining, prevention of disconnection cracks by forming the wiring pattern on one side and thus improving bend-resistance property, and elimination of inconvenience in arrangement on hinges of an electronic apparatus by reducing the width of the board coupling section when in use. CONSTITUTION: A board coupling section 8 is provided having one lateral side connected and unified with one end of a board section 4, and having the other lateral side connected and unified with one end of a board section 6. The board section 4 has its other end extended in a direction of the initial position of the board section 4 by having the periphery of the board coupling section 8 folded back. The board coupling section 8, thus folded over by the folding back operation, has twice the width of the conventional one so that a wiring pattern may be formed on one side thereof. When arranged between hinges, the board coupling section 8 is in a state of being folded over so as to have the same width as the conventional one.
Patent JP-H0679900-A (JP)
Title: Thermal head
Inventor: SAWADA HIROAKI
IPC: H01L49/00
Filed: 1992-08-31
Abstract: PURPOSE:To improve the grade of printing by easily smoothing the surface of a heating resistor through polishing without damaging a conductive pattern. CONSTITUTION:An overcoating glass layer 5 covering a conductive pattern 3 is formed onto an underglaze glass layer 2 on a substrate 1 while a punched pattern section 5a is formed to the overcoating glass layer 5, and a heating resistor 4 is buried and formed to the punched pattern section 5a. Accordingly, the surface of the heating resistor 4 is polished without damaging the conductive pattern, and the surface of the heating resistor 4 can be smoothed easily, thus preventing the dispersion of the resistance value and unevenness of heat generation and the like of the heating resistor 4.
Patent JP-H02100890-A (JP)
Title: Decision of optimum terminal position of robot
Inventor: ASANO TOSHI
IPC: G05D3/12
Filed: 1988-10-11
Abstract: PURPOSE:To enable the autonomous control of a robot and to drastically curtail labor by adding the function autonomously deciding the optimum terminal position to a robot. CONSTITUTION:A provisional terminal position, i.e. the angle phi of the terminal around the terminal coordinate axis Yh is decided at a provisional terminal position calculation part. Then after calculating the joint angle vector from the provisional terminal position at a joint angle vector calculation part 103, Jacobian and restore torque vector are calculated by using the joint angle vector at a Jacobian calculation part 105. A terminal force vector F is then calculated at a terminal force calculation part 107. In that case, at the terminal force minimum value discriminating part 109 whether or not the absolute value of the restore torque vector is smaller than the min. value is discriminated, and in case of the discrimination result being found smaller, the angle phi of the terminal around the terminal coordinate axis of this time is taken as the optimum terminal position.
Patent JP-2001070296-A (JP)
Title: Radio-ct instrument
Inventor: HORIUCHI TETSUYA
IPC: A61B6/03
Filed: 1999-09-08
Abstract: PROBLEM TO BE SOLVED: To enable a change of slice thickness even in the case of imaging of three or more slices having the same thickness at the same time while using a detecting unit having three stages or more of detecting unit modules. SOLUTION: A moving disk 31 is installed in a rotary disk 32 to be rotated around an isocenter ISO, and an X-ray tube 21 and a detecting unit 274 are provided opposite to each other in the moving disk 31. The moving disk 31 can move on the rotary disk 32 along the opposite shafts of the X-ray tube 21 and the detecting unit 274. Slice thickness can be formed large and small for change by moving the moving disk 31.
Patent JP-H0672933-A (JP)
Title: Polyhydroxynaphthalene compound and epoxy resin composition
Inventor: NAKA AKIHIRO
IPC: C08G10/02
Filed: 1992-08-28
Abstract: PURPOSE:To provide a polyhydroxynaphthalene.compound useful as a curing agent for epoxy resin, having low melting point and melt viscosity and excellent workability and giving a cured epoxy resin having high glass-transition temperature and heat-resistance and excellent moisture resistance. CONSTITUTION:The objective polyhydroxynaphthalene compound is produced by the condensation of alpha-naphthol with paraformaldehyde and contains <=50wt.% (especially <=30wt.%) of compounds having >=4 naphthalene nuclei. When the charged amount of paraformaldehyde in the above condensation reaction is 0.50-0.15mol, the content of the compound having >=4 naphthalene nuclei becomes <=50wt.% and when the amount is 0.60-0.70, the content becomes <=30wt.%. The composition containing an epoxy resin and the polyhydroxynaphthalene compound as a curing agent is suitable as a semiconductor-sealing material because the package molded by the composition is resistant to cracking even in soldering.
Patent JP-H0996503-A (JP)
Title: Position detection apparatus for moving body
Inventor: KUBO TAKASHI
IPC: G06F3/046
Filed: 1995-09-29
Abstract: PROBLEM TO BE SOLVED: To provide a position detection apparatus for a moving body, which can be controlled automatically in such a way that the position detection accuracy of the position detection apparatus is kept constant. SOLUTION: A moving body 10 which is moved on a board body 2 by a radio control operation generates an induced voltage at loop coil groups 2d, 2e arranged in a matrix shape on the board body 2 when an oscillation coil 11 installed inside the moving body 10 is oscillated. When the loop coil groups 2d, 2e are scanned electrically, the position of the moving body 10 is grasped. The moving body 10 is moved slightly on the board body 12 in an initializing operation or the like, the peak of the induced voltage obtained at this time is found, and a binarization slice level is set at about 60% of its peak value. Alternatively, a binarization slice level is set at about 80% of a voltage at a time when peak voltages detected in two adjacent regions of a matrix become the same each other.
Patent JP-H0568168-A (JP)
Title: Image reader
Inventor: KANEDA TOKUZO
IPC: H04N1/409
Filed: 1991-09-06
Abstract: PURPOSE:To detect picture elements with a certain density or more and to detect dirt, damage, or due condensation on a contact glass and a pressure plate prior to copying by reading out an original surface exposing area in an original absence state. CONSTITUTION:Since a reference white plate 5 is read out at first and then the pressure plate is read out before setting up an original 1 without setting up the original 1 on a contact glass 2 immediately after completing the compensation of shading, the existence of dirt, a damage, or dew condensation is detected only when black data with a certain density or more exist. Thereby the existence of dirt or the like is checked during the starting of a fixing heater at the time of unset state of the original 1 on the glass 2, i.e., power ON of a copying machine, jum processing.
Patent JP-H0997032-A (JP)
Title: Display system
Inventor: NAKASE YUKIO
IPC: G09G3/28
Filed: 1995-09-29
Abstract: PROBLEM TO BE SOLVED: To enhance luminance in addition to the ease of lighting of a display element 1 at a low temp. SOLUTION: This display system is provided with a detecting means 3 for detecting the atm. temp. of a display element 1 having a discharge tube. The system is provided with a voltage control means 6 which controls the voltage impressed on the display element 1 to the voltage higher than that in the prescribed temp. when the temp. detected by this detecting means 3 is lower than the prescribed temp. at the starting of the lighting of the display element 1. The system is provided with an electric power control means 7 for controlling the electric power to be applied on the display element 1 to the electric power larger than the electric power in the prescribed temp. when the temp. detected by the detecting means 3 is lower than the prescribed temp..
Patent JP-H03116328-A (JP)
Title: Load module constituting method for program
Inventor: ODA HIDEO
IPC: G06F9/445
Filed: 1989-09-29
Abstract: PURPOSE:To easily change the load module constitution of a program and to expand computer systems of distribution object by providing a start information table which defines the linkage of start among function modules. CONSTITUTION:A start information table 2 defines the linkage of start among function modules 3, and a control module 1 starts modules A to C of function modules 3 constituting the program in accordance with the start information table 2. In this case, the control module 1 starts them in accordance with only the form of the start information table 2 but does not pay direct attention to a specific function module 2. Consequently, contents of the start information table 2 are only changed to easily obtain a load module constitution different by computer system. Thus, the object computer systems can be expanded in software distribution because the load module constitution of the program is easily changed between computer systems different in performance or the like.
Patent JP-H10101661-A (JP)
Title: Acrylamide derivative and its production
Inventor: ANDO YOSHINORI
IPC: C08F20/58
Filed: 1996-09-26
Abstract: PROBLEM TO BE SOLVED: To produce a new acrylamide that has excellent compatibility with polymers regardless of kinds and chain length of polymers, is useful as modifier or denaturant for polymers, and can be polymerized single or copolymerized with other monomers. SOLUTION: This acrylamide of formula I (R<1> and R<2> are H, methyl; (n) is 1-6), for example, N-(glycydiloxymethyl)acrylamide, is obtained be heating preferably 1mol of an acrylamide derivative of formula II (R<3> is H or a lower alkyl) and 0.8-200mol of an epoxy alcohol of formula III to react with each other in the presence of 0.001-100mol of an acidic substance, such as phosphoric acid, and 0.0001-0.1mol of a polymerization inhibitor, such as hydroquinone monoether, at 20-100 deg.C.
Patent JP-2000089066-A (JP)
Title: Slot for carrying optical fiber
Inventor: KISHIDA YOSHIJI
IPC: G02B6/44
Filed: 1998-09-09
Abstract: PROBLEM TO BE SOLVED: To obtain a slot for carrying optical fibers which is constant in curva ture even for grooves having alternately inverting waveforms by providing the slot with the grooves in accordance with a mathematical expression at which the curvature of the inserting portions of the inversion grooves formed on the surface is kept always constant. SOLUTION: The slot for carrying the optical fibers has a long-sized tension member 1 and a coating layer 2 made of a synthetic resin laminated on the outer periphery of this tension member 1. The grooves 3 extending in the axial direction are formed of the alternately inverting waveforms on the outer periphery of the coating layer 2. The waveforms in the pitch inverting parts of the grooves 3 are derived by the mathematical expression: Z"=±1/r0ρ0 √(z'2+ r02)√(z'2+r02+r0ρ0) √(z'2+r02-/r0ρ0). In the mathematical expression, z is the function z(θ) in the axial direction of the grooves 3 of the slot for carrying the optical fiber which is defined as z for the purpose of explanation; z'=dz/dθ, z"=d2z/dθ2; θ is an inversion angel; r0 is a slot radius; ρ0 is an initial radius of curvature.  The curvature of the grooves is constant if such grooves 3 are formed.
Patent JP-S62123368-A (JP)
Title: Hoist with wire rope flaw detecting function
Inventor: TAKENAGA HISAYOSHI
IPC: G01M99/00
Filed: 1985-11-13
Abstract: PURPOSE:To facilitate wire rope inspection operations for improvement of safety of a hoist, by assembling one and up insulation covered material wires in each strand constructing a hoisting wire rope. CONSTITUTION:One or up insulation covered material wires 14(141-14n) are assembled in each strand constructing a hoisting wire rope and each end of the material wires 14 are short circuited to make the other end the detecting terminal. And, a detecting circuit 25 of a broken material wire detects breakage of the material wire 14 by the current conducting condition after controlling each of the material wires for current conduction. Further a detecting circuit 33 applies an electrical voltage to the insulating cover of the material wire through these material wire 14 and other strand material wire which is not insulated and wear condition of the material wire 14 is detected from the degree of change of voltage on current due to a drop in insulating resistance of the insulating cover. In order to make circuits 25, 33 automatically switchable, a circuit switch is 22' is installed and a detecting signal of each circuit 25, 33 is arithmetically operated by a microcomputer 37 for identification of the degree of damage.