baber/WOPTO huggingface dataset:
Patent JP-H07211967-A (JP)
Title: Wavelength multiplexing ring laser
Inventor: TAKAHASHI HIROSHI
IPC: H01S3/083
Filed: 1994-01-20
Abstract: PURPOSE:To provide a wavelength multiplex ring laser which has a simple constitution and is highly stable by combining an array wavelength multiplexing optical multiplexer type NXN (N; an integer) wavelength multiplexing optical multiplexer and optical amplifier. CONSTITUTION:An array waveguide diffraction grating type NXN wavelength multiplexing optical multiplexer 1 which is constituted of an array waveguide diffraction grating composed of a first waveguide group of N pieces of waveguides, second waveguide group of N pieces of waveguides, two slab wave guides, and a plurality of waveguides having a fixed optical path length and a ring laser which is constituted of a plurality of optical amplifiers 2-1, 2-2, 2-3, and 2-4 and a directional coupler 3. The amplifiers 2-1, 2-2, 2-3, and 2-4 are connected between two waveguides in the first waveguide group and the coupler 3 is connected between two waveguides in the second waveguide group.
Patent JP-H09200052-A (JP)
Title: A/d converter
Inventor: SATO HIROKI
IPC: H03M1/46
Filed: 1996-01-16
Abstract: PROBLEM TO BE SOLVED: To reduce the conversion time to one over the parallel number by using plural counters having a preset value being a plural number of divisions of an analog signal input range, D/A converter circuits and comparators corresponding to them so as to apply parallel successive conversion to the analog signal. SOLUTION: Up-counters 111 -114 to which different values to divide a level of an analog signal into plural ranges are preset count clocks, D/A converters 121 -124 obtain the analog signal corresponding to the count of each counter, and comparators 131 -134 use an analog output of each D/A converter circuit for their own comparison reference signal to detect the coincidence with the common analog signal input. When a coincident output is obtained in any of the comparators, an AND circuit 14 stops the count operation of each counter and a multiplexer 15 extracts a count output of the counter corresponding to the comparator from which the coincident output is obtained as a converted digital output.
Patent JP-S5497664-A (JP)
Title: Sheet extrusion
Inventor: ARAKI TAKAO
IPC: B29C48/08
Filed: 1978-01-19
Abstract: PURPOSE:To extrude a plastic sheet or a film having smoothness free from an  optical strain and a beautiful surface with glazing rolls, by evacuating gases from a  specific section equipped with head openings. CONSTITUTION:A molten plastic is extruded from the head of the die 4 of the extruder 1 to form a sheet or a film, and gases or mists of low-molecular substances are purged through the vacuum ports 7 and 7' equipped between the die 4 and the roll 5 by suction or by blowing air. The sheet or film not cooled sufficiently yet is glazed by the rolls 5, 5', and, 5'' under cooling. In this stage, the remaining low-molecular substances are removed from the system by the vacuum port 7 and 7', and, if necessary, by the additional vacuum port 7'' equipped. The vacuum ports 7, 7, and 7'' are equipped within a distance of the radius R of the rolls 5, 5', and 5'' from the roll surfaces so that the purging speed of the gases at the head openings of the vacuum ports is maintained at 0.1-30 m/sec.
Patent JP-H02186676-A (JP)
Title: Semiconductor device
Inventor: AKIOKA TAKASHI
IPC: H01L29/78
Filed: 1989-01-13
Abstract: PURPOSE:To reduce a parasitic capacitance between a channel region and a substrate through punch-through independent of breakdown strength by a method wherein the channel region and the substrate of a vertical MOSFET are isolated from each other by an insulating layer. CONSTITUTION:A drain 1 and a channel region 2 are isolated from a substrate 8 with an insulating layer 7. When a positive voltage, for instance, of 5V is applied to a gate electrode 4, a voltage of 0V is applied to a source electrode 5, and a positive voltage, for instance, of 5V to a drain electrode 6, a channel is formed along a gate insulating film inside the channel region 2 and a drain current flows. Next, when a voltage of 0V is applied onto the gate electrode 4, the above channel dissipates and the drain current is turned OFF. By this setup, a channel region by which a MOSFET is influenced in characteristics is connected in crystal with the single crystal Si of high quality of a substrate, so that the channel region is easy to crystallize high in quality and an SOI MOS FET of high performance can be obtained.
Patent JP-S5498490-A (JP)
Title: Method of producing getter for unclear reactors
Inventor: SENDA CHIYUUICHI
IPC: G21C3/16
Filed: 1978-01-20
Abstract: PURPOSE: To remove oxygen gas, hydrogen gas and water attached to getter chips filled in the vessel by heating thereof in the vacuum.  
     CONSTITUTION: To remove gas and volatile components, a getter is placed into a vacuum heating furnace and heated up to 400°C under a high vacuumness of less than 10 -1  torr. With such a method, the heating up to 400°C and high vacuumness of less than 10 -1  torr enable effective removal of water and gas components such as oxygen gas and hydrogen gas attached to the getter chips. This treatment assures effective degasing and removal of volatile components thus producing a getter of excellent quality. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S59129844-A (JP)
Title: Transmission screen
Inventor: HONDA MAKOTO
IPC: G03B21/62
Filed: 1983-01-14
Abstract: PURPOSE:To determine an observable range in the horizontal direction and also the vertical direction without causing a drop of luminance by providing a fly- eyes' lens and a circular Fresnel lens surface on one surface of a light-transmissive substrate and the other surface, respectively. CONSTITUTION:A fly-eyes' lens surface 22 and a circular Fresnel lens surface 21 are provided on one surface of a light-transmissive substrate consisting of a transparent synthetic resin and the other surface, respectively. As for the vertical direction, an incident light is refracted by using the fly-eyes' lens 22 having a vertical sectional shape whose curvature is comparatively small, an angle range theta2 attains 5-20 deg., and the light is emitted. In this way, the incident light is utilized effectively by the Fresnel lens 21, and an observable range in the horizontal direction and also the vertical direction can be determined without causing a drop of luminance of a picture.
Patent JP-H10197331-A (JP)
Title: Vibration sensing device
Inventor: ICHIYA MITSUO
IPC: G01H11/02
Filed: 1997-01-14
Abstract: PROBLEM TO BE SOLVED: To provide a vibration sensing device which detects vibrations caused by earthquakes and outputs voltage according to the sizes of vibrations. SOLUTION: A movable block 7 comprises an iron core 1, a permanent magnet 4, a coil bobbin 2 into whose center the iron core 1 and permanent magnet 4 are inserted, a coil 3 wound around the coil bobbin 2, and a movable yoke 5 formed of magnetic material and axisymmetrically arranged about the iron core 1 and is rocking-freely suspended from a lid 10 via a suspension wire 6. In addition, a fixed yoke 8 is formed of magnetic material and axisymmetrically arranged at a position facing the iron core 1 and movable yoke 5. The iron core 1, permanent magnet 4, movable yoke 5, and fixed yoke 8 comprise a magnetic circuit. When the movable block 7 is rocked according to the vibrations of an earthquake, magnetic flux passing through the center of the coil 3 changes to generate voltage according to the vibrations at the coil 3.
Patent JP-H08198618-A (JP)
Title: Heat resistant modified zeolite
Inventor: FUKUDA KAORU
IPC: C01B39/08
Filed: 1995-01-17
Abstract: PURPOSE: To provide a modified zeolite having superior heat resistance and HC adsorbing ability. CONSTITUTION: Aluminum as a constituent of zeolite crystals having a three- dimensional skeleton structure is released from the zeolite crystals by a combination of acid treatment with steam treatment or boiling water treatment to obtain the objective modified zeolite. When the weight percentage of Al released from the zeolite crystals and remaining in the three-dimensional skeleton structure is represented by A (wt.%) and that of Al remaining as a constituent of the zeolite crystals without releasing from the zeolite crystals is represented by B (wt.%), the rate R of remaining of released Al represented by the equation R=(A/(A+B))×100 is regulated to >0 to 51.3%.
Patent JP-H04240161-A (JP)
Title: Production of silicon nitride sintered body
Inventor: HASE TEIZO
IPC: C04B35/58
Filed: 1991-01-21
Abstract: PURPOSE:To obtain a material having high strength and oxidation resistance at such a high temp. as 1,400 deg.C and fit for a gas turbine. CONSTITUTION:Y2O3 and Al2O3 as sintering added are added to Si3N4 powder by 2.5-5.5wt.% and 0.005-0,012wt.%, respectively, and they are molded and calcined at 1,530-1.650 deg.C. Pressure is then increased to >=11,500atm and concluding sintering is carried out to obtain a silicon nitride sintered body having about 700-900MPa four-point bending strength in air at 1,400 deg.C and >=1,1000MPa four- point bending strength in air at 1,100 deg.C.
Patent JP-H08224425-A (JP)
Title: Method for detecting filter clogging
Inventor: YASUI SHIGEAKI
IPC: F24F13/28
Filed: 1996-01-16
Abstract: PURPOSE: To surely detect the clogging of a filter by judging that a filter is clogged when the value of a supplied current fed to a fan for generating an air flow in a duct provided with a filter, is decreased to not more than the lower limit current value obtained by deducting a prescribed current value from a basic current value. CONSTITUTION: In a gas air heating unit 1, when a heater 2 is started, air sucked into a combustion case 61 by a convection fan 52 is burned by a gas burner 6. Air sucked into a convection duct 4 through a filter 43 is mixed with waste combustion gas generated in the gas burner 6 and is blown off as warm wind. At this time, a computer 9 tries to keep the convection fan 52 detected by a rotation speed sensor 94a at a target rotation speed, and determines that the filter 43 is clogged when the value of a supplied current to a fan motor 51 of a fan 5 is decreased to not more than the lower limit current value obtained by deducting a prescribed value from a basic current value, and lights a filter lamp 17.
Patent JP-H01182447-A (JP)
Title: Plastering aid material
Inventor: MORIMOTO YOSHIKAZU
IPC: E04F13/04
Filed: 1988-01-12
Abstract: PURPOSE:To enable mortar to be solidified in a stable condition by constituting a plastering material crossing a bar-shaped synthetic resin material and plastic so as to form a lattice plane of fixed size and applying a seal to the reverse side. CONSTITUTION:Bar-shaped synthetic resin and plastic 1 are crossed in a plural quantity so as to form a lattice of fixed size. A plastering material is constituted applying a gluing function like a seal to the reverse side. Accordingly, this plastering aid material is glued to a wall, when mortar is applied onto the material, the mortar, infiltrating into the lattice, can be solidified in a fixed condition.
Patent JP-2000202704-A (JP)
Title: Tip holder for measuring thermoelectromotive force between tool and workpiece
Inventor: KURODA MOTOFUMI
IPC: B23B27/00
Filed: 1999-01-12
Abstract: PROBLEM TO BE SOLVED: To provide a tip holder for measuring thermoelectromotive force between a tool and a workpiece wherein a conductor is able to be simply and securely attached to a tip, and at the same time, the conductor will not come off even if chips get entwined around during the machining. SOLUTION: This tip holder for measuring electromotive force between a tool and a workpiece is comprised of a tip 2 attached to a tip holder 21, a conductor 3, a fixed arm 9, a bolt 10 attaching the arm 9 to the tip holder 21, a tap bolt 12 attached to the arm 9, and a keep plate 11 locked to a nose of the bolt 12, respectively. The keep plate 11 consists of an insulating body, inserting the conductor 3 into a gap between the plate 11 and the tip 2, and thereby the conductor 3 is locked tight to the tip 2 by the tap bolt 12.
Patent JP-H08192199-A (JP)
Title: Method for processing organic sludge into oily material
Inventor: YOKOYAMA SHINYA
IPC: C02F11/00
Filed: 1995-01-18
Abstract: PURPOSE: To produce oily material, which can be used as fuel, from organic sludge by a method wherein fluidized material is passed downwardly through a first pipe of a vertical long pipe type reactor of double-pipe construction and then upwardly through an annular gap between the first pipe and a second pipe, while the material is heated by an electric heating unit provided at the lower part of the first pipe. CONSTITUTION: Solid organic sludge carried to a fluidizing device 4 is heated, fluidized, and put into a storage tank 5. The fluidized material stored is sent to a pressure storage tank 7 by a pressure feed pump 6, where it is stored for some time and fed into a flow regulator 9 from a line 28, where the flow rate of the material is controlled to a certain flow rate, which is specified by conditions for processing into oily material, and the material is fed into an oil processing device 10 through a line 29. And, as a reactor for oil processing, a vertical long pipe type reactor of double-pipe construction is employed, and the fluidized material is passed upwardly through an inner side first pipe and then upwardly through the gap between the first pipe and a second pipe, while the material is heated by an electric heating unit provided at the lower part of the first pipe.
Patent JP-H08224031-A (JP)
Title: Sulky combine harvester
Inventor: ONISHI HIDEAKI
IPC: A01D67/00
Filed: 1996-01-17
Abstract: PURPOSE: To provide a sulky combine harvester designed to enable highly efficient works safely by reasonably arranging respective operational devices in a cabin. CONSTITUTION: This sulky combine harvester stands equipped with a reaping section 2 in the front of a machine body 1 mounted with traveling devices 10, 10, a cabin 5 enclosing operational devices 50, 50a and a seat 51 and a grain culm conveyer 3 to convey reaped grain culms backward in such a fashion as to be laterally arranged in parallel on the front part of the machine body 1 in its rear portion, and a threshing section 4 for reaped grain culms behind the conveyer 3. And, a driving operational device 50 in front of the seat 51, another driving operational device 50 on the side of the seat 51, and an operational device 50a other than those for driving operational system at a site toward the threshing section 4 and situated behind the seat 51, are arranged so as to be located higher in this order.
Patent JP-H10201215-A (JP)
Title: Element coil structure of linear motor
Inventor: MORIBAYASHI HIROTOSHI
IPC: H02K41/02
Filed: 1997-01-16
Abstract: PROBLEM TO BE SOLVED: To provide an element coil structure that allows the length of a coil to be easily increased and decreased. SOLUTION: In a linear motor with its mover constituted of a permanent magnet and its stator constituted of a coil, the element coils comprising the coil are composed of a main coil board 10 having coupling sections of shapes complementary to each other on both its ends, coil end board physically physically and electrically connected with one end of the main coil board 10, and a board 30 for lead wiring physically and electrically connected with the other end of the board 10. The main coil board 10 is so formed that a plurality of such boards can be coupled at their coupling sections at their ends. Reference holes 16, 23, 33 for positioning are formed at the upper and lower peripheral sections of each board in order to position the boards.
Patent JP-H08256041-A (JP)
Title: Method of adjusting first and second order network, method of controlling dependence of first order network on second order network status signal, method of controlling combination of state machine and order network system
Inventor: RARII DEII HIYUUITSUTO
IPC: G10H1/00
Filed: 1996-01-17
Abstract: PROBLEM TO BE SOLVED: To eliminate propagation difference of different combination logic clocks of upstream and downstream state machines(SM). SOLUTION: A trigger circuit 34 applies an output state to a downstream SM 12 in response to the appearance of an appropriate combination of an upstream SM output state and selected data through a trigger circuit input. The circuit 34 and the upstream SM 16 are clocked by a common signal. The signal avoids the SM 16 from changing its state before the circuit 34 generates an appropriate signal and applies a state that is estimated to a downstream SM 12. The SM 12 surely coincides with a selected upstream SM output state and takes an accurate output state.
Patent JP-S57120379-A (JP)
Title: Manufacture of gaas fet
Inventor: MIZOGUCHI TAKAMARO
IPC: H01L29/812
Filed: 1981-01-20
Abstract: PURPOSE:To obtain a desired threshold voltage by preventing the reaction of unreacted metal, remaining after the adjustment of the threshold voltage, with a GaAs substrate in a later process. CONSTITUTION:An active layer 12 is formed in a semi-insulative GaAs crystal 11. Then a source electrode 13 and a drain electrode 14 are formed. A gate electrode is made by a heat treatment after vapor depositing (or Ti or Pd). Threshold voltage of FET is measured and the heat treatment is stopped when the desired threshold voltage is obtained. Then Al 18 is vapor-deposited laminating over the gate electrode. The progress of reaction between Pt and GaAs is prevented by creating solid phase between a laminated conductive film and remaining Pt at the time of moving the junction surface by the reaction of Pt- GaAs until the threshold voltage is adjusted to a desired value.
Patent JP-H10201288-A (JP)
Title: Brushless motor driving circuit
Inventor: OTA HISAYOSHI
IPC: H02P6/21
Filed: 1997-01-17
Abstract: PROBLEM TO BE SOLVED: To provide a brushless motor driving circuit which can stably drive a brushless motor even when a load torque changes abruptly. SOLUTION: A commutation command is switched from high to low when a specified period has passed after its occurrence, in short, in the intermediate region of the first and second current increase region. An analogue switch AS1 is turned off at the switching, however, a voltage value of a current detecting circuit 4 (momentary output) is before off is held in a sampling circuit 5, and amplified to about one and four/tenth by an amplification circuit 6, and through a preference circuit 8, outputted to a commutation command circuit 9. When the output of current detecting circuit 4 is one and four/tenth or more of the output of sampling circuit 5, the commutation command circuit 9 outputs a high signal to a monostable multi-vibrator MM, and as a result, a one-shot commutation command is outputted to a count circuit 11 from the commutation command circuit 9, so that commutation is performed with a brushless motor 51 by the count circuit 11, a distribution circuit 12, and an inverter circuit 3.
Patent JP-H04243743-A (JP)
Title: Control method for conveyance of medium by medium processing device
Inventor: IIZAWA KATSU
IPC: B65H83/00
Filed: 1991-01-23
Abstract: PURPOSE:To provide a medium processing device capable of sensing in advance the deterioration of a medium separating mechanism portion or the like due to aged deterioration so as to maintain the mechanism. CONSTITUTION:A method of controlling conveyance of a medium by a medium processing device by measuring time taken for a medium to be separated or conveyed from first to second position, determining whether or not the value of the time measured is greater than a preset first time value in order to detect aged deterioration of the device, replacing the first time value by a present second time value if the value is judged to be greater, and storing as history the date on which the first time value is replaced by the second time value.
Patent JP-S59132203-A (JP)
Title: Power distributor
Inventor: YOSHIKAWA YUKIHIRO
IPC: H01P5/04
Filed: 1983-01-18
Abstract: PURPOSE:To make the power distributed to each branching waveguide different from each other by inserting a metallic triangular prism from an E or H plane of a branching section with an eccentricity from the center of the branching part. CONSTITUTION:The metallic prism 5 is inserted with a shift (x) from the center of the branching section 3. Then, the symmetry of the branching section 3 is lost, the power reflected on the branching section 3 and the metallic triangular prism 5 and inputted to the branching waveguides 2a, 2b is given much to the branching waveguide 2a and less to the branching waveguide 2b, resulting that the power distributed to the branching waveguides 2a, 2b is made different.
Patent JP-H09191960-A (JP)
Title: Work desk and combination of work desk and auxiliary table
Inventor: NAGAMITSU SATOSHI
IPC: A47B87/00
Filed: 1996-01-18
Abstract: PROBLEM TO BE SOLVED: To ensure suitability for every person's work, allow arrangement particularly suitable for a team work, and save office space. SOLUTION: A work desk 1 is formed so that the front end 3 of a top plate 2 approximately rectangular in plan view is corrugated to have a recess 3a and a projection 3b. In addition, both sides of the top plate 2 are formed to have the same breadth, and the form of the corrugation is determined so as to keep an equal angle between the slopes of tangential lines drawn to the front end 3 of the corrugation at both sides of the top plate 2. Then, the work desk 1 is combined with a movable auxiliary table 13 having a plan view of approximate triangle and height suitable for storage in space under the top plate 2 of the desk 1.
Patent JP-H11203232-A (JP)
Title: Information processing device and input/output control device
Inventor: SATO SHINJI
IPC: G06F13/12
Filed: 1998-01-16
Abstract: PROBLEM TO BE SOLVED: To reduce the number of accesses by way of a system bus regarding input/output control information. SOLUTION: An input/output control memory 35 for retaining input/output control information is provided inside an input/output control device. Thus, an access to the input/output control information that is frequently generated from an input/output control circuit 36 can be performed without a data bus 5 and an address bus 6 intervened. Since a main storage device 2 is not made to store the input/output control information, central processing units 11 and 12 set an address of the input/output control memory 35 in an address register 32 and tries to access to the input/output control information. An address selection circuit 34 selects either the address register 32 or an address register 33 and supplies the input/output control memory 35 with it.
Patent JP-H01182465-A (JP)
Title: Arranging method for foundation slab reinforcing bar
Inventor: USAMI SHIGERU
IPC: E04C5/16
Filed: 1988-01-14
Abstract: PURPOSE:To facilitate arrangement work of reinforcement by arranging a bending-reinforcing steel bar horizontally in a multi-step further in a lattice shape in a foundation slab and perpendicularly dropping many shear-reinforcing thread steel bars, providing in the bottom part a stopper able to open and close in a petal state, into a gap of the bending-reinforcing steel bar to be stopped. CONSTITUTION:In a foundation slab in a large scale reinforced concrete structure of a nuclear power station or the like, bending-reinforcing steel bars 8... are arranged horizontally in multiple steps further in a lattice shape. Next from the upper of these bars 8 into their gap, many shear-reinforcing thread steel bars 1... are vertically dropped being stopped and fixed to the bending- reinforcing steel bars 8... in the uppermost and lowermost steps. This shear- reinforcing thread steel bar 1... provides in its bottom end part a stopper 3... able to open and close in a petal shape, being easily stopped and fixed to the bending-reinforcing steel bar 8... by closing the stopper, when it passes through the gap, while opening the stopper in the petal shape when it is stopped.