baber/WOPTO huggingface dataset:
Patent JP-2000175496-A (JP)
Title: Stepping motor driver
Inventor: KITAMURA SHINGO
IPC: H02P8/12
Filed: 1998-12-07
Abstract: PROBLEM TO BE SOLVED: To reduce vibration occurring at the time of slew up of a motor, while increasing the speed of sequence by employing microstep drive, at least for the first step of driving a stepping motor when it is turned from a stopped state. SOLUTION: A comparison circuit 607 compares the level of a current flowing through a stepping motor with a set current level and if the set current level is lower, a PWM circuit 608 turns off a PWM signal 610 thus lowering the voltage being applied to the motor and decreasing the current flowing into the motor. If the set current level is higher, the PWM signal 610 is turned on to increase the voltage being applied to the motor thus increasing the current flowing into the motor. More specifically, the motor is driven slowly at a microstep for the first step, when driving of motor is started.
Patent JP-2001179979-A (JP)
Title: Liquid ejection recording head and method of making the same
Inventor: AONO KENJI
IPC: B41J2/05
Filed: 1999-12-22
Abstract: PROBLEM TO BE SOLVED: To provide a recording head superior in ejection stability obtained even in a high driving frequency because it has been required that the ink ejection frequency improved with respect to increasing of the operation amount of a current ink jet printer and enlargement of the size of the printer and there is a possibility of creating defective ejection by a conventional method of making a recording head. SOLUTION: In a method of making a recording head, an ejection nozzle outlet 6 is formed on an ink passage forming material 2 having photosensitivity by partially projecting energy for activating the photosensitivity to the ink passage forming material 2 using a mold so as to form an ink passage-shaped resin layer 9 in such a manner that the size of the cross section of the nozzle is gradually enlarged toward an electrothermal transducer element 7 from the ejection nozzle outlet 6. A component for absorbing or scattering the energy for activating the photosensitivity is included in the ink passage forming material 2.
Patent JP-2000192152-A (JP)
Title: Fluidized bed device for continuous heat treatment of steel wire
Inventor: KINOSHITA TAKASHI
IPC: C21D9/567
Filed: 1998-12-22
Abstract: PROBLEM TO BE SOLVED: To provide a fluidized bed device for continuous heat treatment of a steel wire which prevents the sand as a fluidizing medium from flowing out, ensures a working environment, and maintains the fluidizing condition on the inlet side or on both the inlet and outlet sides of the steel wire of the fluidized bed device without depositing any fluidizing medium. SOLUTION: In a fluidized bed device for continuous heat treatment of a steel wire, and more specifically, a fluidized bed device having a sand recovery device on the inlet side or on both the inlet and outlet sides of a steel wire 6, the sand recovery device is provided with a hopper to receive and store the sand flowing out and dropping from the inlet side or both the inlet and outlet sides, and a sand carrying pipe 2 on a lower part of the hopper 1. The sand carrying pipe 2 communicates with the lower part of the hopper 1, and also communicates with the inside of the fluidized bed device.
Patent JP-2001182305-A (JP)
Title: Floor structure, flooring joint seal, and wiring flooring
Inventor: SHIMIZU SHOHACHI
IPC: E04F15/18
Filed: 1999-12-22
Abstract: PROBLEM TO BE SOLVED: To provide a floor structure capable of preventing warps of flooring materials even when temperature rises. SOLUTION: The floor structure 4 is constituted of wiring flooring materials 2 and flexible flooring joint seals 3. The wiring flooring materials 2 include projected pieces 2c projected to the sides of wiring gutters 5. The projected pieces 2c can be bent to downward sides. A gap S is made between one projected piece 2 and the other projected piece 2 of the wiring flooring materials arranged so as to abut against each other. The flooring joint seals 3 are stuck so as to lay them between the projected pieces 2c and 2c.
Patent JP-2001183656-A (JP)
Title: Reflection type liquid crystal display device and image display device using the same
Inventor: HATANAKA TAKAYUKI
IPC: G02F1/1333
Filed: 1999-12-22
Abstract: PROBLEM TO BE SOLVED: To provide a reflection type liquid crystal display device uniform in the thickness of a liquid crystal layer in pixels and capable of realizing an achromatic black-and-white display high in contrast and sufficiently bright in a white display by ragging a reflection plane. SOLUTION: The reflection type liquid crystal display device comprises a liquid crystal cell 11 having a liquid crystal sealed in a pair of substrates 1, 10, and a polarizer film 12, one or more birefringence films 13a, 13b and a reflection layer 3. In this device, a rugged layer 2, a reflection layer 3, a leveling layer 6 and a transparent electrode 7 are successively laminated on the lower substrate 1. The level difference between the highest part and lowest part of the surface of the leveling layer is <=0.1 μm. The twist angle of the liquid crystal layer is controlled to 220 deg. to 270 deg.. The rugged layer is not present in the connecting terminal part between the liquid crystal cell 11 and an external circuit.
Patent JP-2001181008-A (JP)
Title: Concrete composition
Inventor: KATO HIROYOSHI
IPC: C04B111/20
Filed: 1999-12-22
Abstract: PROBLEM TO BE SOLVED: To obtain a concrete composition having development of excellent strength, and small self shrinkage. SOLUTION: This concrete composition comprises a cement, a limestone fine powder, a fine aggregate, a coarse aggregate, a cement disperser and water, and contains 5-25 wt.% limestone fine powder based on the total amount of the cement and the limestone powder. The ratio of the water to the powder satisfies formula (1): 0.2<=W/(A+B) <=0.4 (wherein W is the weight of the water per m3 of the concrete; A is the weight of the concrete per m3 of the concrete; and B is the weight of the limestone fine powder per m3 of the concrete).
Patent JP-2000185639-A (JP)
Title: Vehicle hydraulic brake device
Inventor: KAMIYA AKIHIDE
IPC: B60T8/58
Filed: 1998-12-24
Abstract: PROBLEM TO BE SOLVED: To miniaturize a solenoid valve, improve responsiveness, and reduce operating sound by providing a machine-operation-type control valve that can control flow of brake liquid through a second passage by a master cylinder side pressure regardless of an operation of the solenoid valve. SOLUTION: In a brake assist control, relatively large hydraulic pulsation occurs on suction sides of hydraulic pumps 18, 19. However, because output hydraulic pressure of a master cylinder 17 is higher than a prescribed value where control valves 29, 30 are closed, the control valves 29, 30 shut off second passages 25b, 26b, and solenoid selector valves 27, 28 communicate first passages 25a, 26a through orifices, transmission of the hydraulic pulsation from the suction sides of the hydraulic pumps 18, 19 to the upstream sides (master cylinder 17 side) of the solenoid selector valves 27, 28 is restrained, and vibration of a brake pedal 16 and vibration of hydraulic piping are restrained. Therefore, it is prevented the vibration of the brake pedal from transmitting to a driver and vibrating the hydraulic piping.
Patent JP-2000185506-A (JP)
Title: Dust-proof structure of catser wheel
Inventor: TAKAGI KATSUMI
IPC: B60B33/00
Filed: 1998-12-24
Abstract: PROBLEM TO BE SOLVED: To prevent a caster wheel rotation from being obstructed by dust such as hair entering the clearance formed between an inner side face of each arm and both side-end faces of a shaft tube. SOLUTION: This caster 7 is constructed as follows. A wheel 16 is interposed between a pair of right and left arms 18, 18. A shaft tube 22 is provided in the center portion of the wheel 16. A rolling bearing 24 is engaged with both side-ends of the shaft tube 22, and a supporting shaft 31 to be horizontally supported between the two arms 18, 18 is inserted into both rolling bearings 24, 24. Clearance G is secured between inside walls 18a of both arms 18, 18, and opposing side-end faces 22a of the shaft tube 22, to allow free rotation of the wheel 16. In the caster 7, covering means 36, as appropriate, covers outer periphery of the clearance G without being in contact with outer peripheral side of the both side-ends of the shaft tube 22, to prevent dust from entering the clearance G.
Patent JP-2000170709-A (JP)
Title: Control valve device for hydraulic work machine
Inventor: AKITA MASATAKE
IPC: B66C23/78
Filed: 1998-12-07
Abstract: PROBLEM TO BE SOLVED: To prevent cylinder extension caused by a leaked oil by connecting a jack control valve to a hydraulic pump discharge oil path, and connecting a plurality of work machine control valves in parallel, and connecting them to the rear-stage oil path of the neutral carry-over oil path of the jack control valve. SOLUTION: Control valves 30-34 are multiple valves arranged with six-port three-position spool valves having a neutral carry-over oil path 35, the pressure port (p) of the jack control valve 30 is connected to the discharge oil path 36 of a hydraulic pump 21, control valves 31-34 for an upper work machine are connected to the rear-stage oil path 38 of the oil path 35 of the control valve 30 after their pressure ports (p) are connected in parallel via a parallel connecting oil path 37. The control valve 30 is provided in the front of the control valves 31-34 hydraulically independently of them, thus no jack drive pressure is applied to the connecting oil path 37 even when the control valve 30 is switched to drive a jack device. No pressure oil is leaked to the control ports from the spool slide faces of the control valves 31-34, and an extension boom is not extended and erected.
Patent JP-H11183379-A (JP)
Title: Light transmission smoke meter fitted to tailpipe
Inventor: OZAWA KOJI
IPC: G01N21/59
Filed: 1997-12-25
Abstract: PROBLEM TO BE SOLVED: To provide an on-vehicle smoke meter capable of fitting or removing a measuring device wholly in the actual operating state without modifying a vehicle and without disturbing the characteristic of an exhaust system and capable of measuring the discharge concentration of a granular material continuously and stably at a quick response speed for a long time. SOLUTION: A light source device 3 and a light detecting device 4 are made lightweight, supports 7, 8 supporting them are made lightweight, and a means securing high rigidity is selected. A fitting section to an exhaust pipe can be simply and surely fitted and removed by a pipe bracket metal and a clamping steel band to the pipe having strength and rigidity. A measuring optical system is simply cleaned by the ventilation due to the travel of a vehicle.
Patent JP-H11187662-A (JP)
Title: Dc-to-dc converter
Inventor: AKIYAMA KAZUNARI
IPC: H02M3/28
Filed: 1997-12-24
Abstract: PROBLEM TO BE SOLVED: To improve efficiency of a transformer, to reduce a circuit scale and to reduce cost. SOLUTION: A circuit subsequent to a secondary of a transformer is constituted of a first system made of a transformer 9A and rectifying/smoothing means (10A, 11A and 12A) and a second system made of a transformer 9b and rectifying/smoothing means (10B, 11B and 12B). The output voltage of the two systems are added, and final output voltage is obtained. When input voltage is not more than a prescribed value, the voltage whose duty ratio is 100% is applied to the first system and voltage whose duty ratio is variably controlled is applied to the second system. When input voltage is larger than a prescribed value, voltage whose duty ratio is variably controlled is applied to the first system and applied voltage to the second system is set to zero.  Since voltage applied to the transformers is applied in the form of the duty ratio being larger than in a former case, a loss in the transformer is reduced.
Patent JP-2000193962-A (JP)
Title: Display element
Inventor: HISATAKE YUZO
IPC: G02F1/1335
Filed: 1998-12-24
Abstract: PROBLEM TO BE SOLVED: To obtain a reflection or semitransmission type display element which has high luminance and low power consumption by improving the light use efficiency. SOLUTION: A fixed retarder layer (phase difference plate) 12 which delays the phase of incident light by λ/4 and a variable retarder layer (vertical alignment type liquid crystal layer) 15 which shifts the phase of the incident light by every λ/2 according to applied voltage are sandwiched between a polarizing plate 11 and a polarized light reflecting layer 18 of a cholesteric liquid crystal, etc. Further, a phase difference plate 25 and a polarizing plate 26 which convert the incident light into a circularly polarized component in the direction of selective reflection by the polarized light reflecting layer are arranged on the back side of the polarized light reflecting layer.
Patent JP-2000140364-A (JP)
Title: Management device for pinball game machine
Inventor: UGAWA SHOHACHI
IPC: A63F7/02
Filed: 1999-12-27
Abstract: PROBLEM TO BE SOLVED: To enable the game parlor side to confirm how many prize winnings in the prize winning into the starting prize winning area to start the motion of a game machine are actually used in the motion of the game device by calculating and outputting the valid starting prize winning number against the prize winning number by pinball game machines. SOLUTION: Data on starting numbers summed up and outputted every time hit balls got into a game area reached 100. The average valid starting numbers of special pattern comes to be 53.5, the prize winning number into an ordinary variable prize winning ball device (ordinary electric prize) 8.3, the maximum of valid starting number of special pattern 75, the maximum of prize winning number into an ordinary electric prize 21, the minimum of the valid starting number of special pattern 30 and the minimum of the prize winning number into the ordinary electric prize O. The average of the valid starting number of the ordinary pattern is 30.8, the maximum 53, and the minimum 15.
Patent JP-H11193947-A (JP)
Title: Range hood
Inventor: MIYAZAKI MASAHIRO
IPC: F24C15/20
Filed: 1997-12-29
Abstract: PROBLEM TO BE SOLVED: To improve smoke collecting efficiency and cleanability of a range hood. SOLUTION: This range hood 1 is set up above a cooking cabinet 2 having a thermal power facility 2A in such a state that the hood 1 is faced oppositely to the cabinet 2. The hood 1 is composed of side face sections formed on both left and right sides of the hood 1 when viewed from the front side, a guide section 10 which guides and converges smoke, hot air, etc., to and on an exhausting means, and the exhausting means which exhausts the smoke, hot air, etc.  The guide section 10 is composed of a first guide face 10A which rises from the rear bottom section of the hood 1 in the depthwise direction in such a state that the faces 10A is inclined forward, and a second guide face 10B which is continuously formed forward from the face 10A in such a state that the face 10B is curved in a circular-arcuate state in the longitudinal cross section, so that the front edge of the face 10B may be directed downward. In addition, a front guide plate 11 and a rear guide plate 12 which are divided from each other in the reciprocating direction and can be attached to and detached from each other are provided at part of the guide face 10B.
Patent JP-H11193320-A (JP)
Title: Open cell polyisocyanurate foam for growing seedling
Inventor: SANO YOKO
IPC: C08G18/50
Filed: 1997-12-26
Abstract: PROBLEM TO BE SOLVED: To provide an open cell polyisocyanurate foam for growing seedling, excellent in water absorption rate, water absorption quantity, water retention, plant support, growth of root, removability of base material after harvest, non-Freon expansion, and waste disposal. SOLUTION: This is a manufacturing method of a polyisocyanurate for which an arom. isocyanate (1), a hydroxy compd. having hot lens than 1.0 average functional group and not less than 20 wt.% oxyethylene content (2), a catalyst of an isocyanurate type (3), and a plysiloxane-polyoxualkylene copolymer having a structure with an OH group at the end of polyoxyalylenepolyether capped with other compd. having no OH group (4) are used, and it is expanded with a silicone foaming agent contg, not less than 40 wt.% of the oxyalkylene content, and the properties of the foam are: density is 8-70 kg/m<3> , open cell rate is not less than 95%, and 40% compression hardness in the parallel direction to the direction of expansion is in the range of 0.1-2.0 kgf/cm<2> .
Patent JP-2001187033-A (JP)
Title: Electronic hemodynamometer
Inventor: HANIYU YOSHIYUKI
IPC: A61B5/022
Filed: 1999-12-28
Abstract: PROBLEM TO BE SOLVED: To provide an electronic hemodynamometer which is theoretically clear, and has an accurate systolic blood pressure determining method. SOLUTION: A living body is pressed by a cuff, and a pulse wave is detected when a pressure is increased or decreased, and thus, the determination of a blood pressure is performed in this electronic hemodynamometer. In such a hemodynamometer, a pulse wave wave-height value after a specified period of time from a rising point accompanying the start of a heart contraction of the detected pulse wave is detected. Then, in the process of a pressure decrease or a pressure increase, a maximum blood pressure value is determined by using the variation of the pulse wave wave-height value in the electronic hemodynamometer.
Patent JP-2001145530-A (JP)
Title: Sectional rack without screw
Inventor: TSUNODA HIROE
IPC: A47B57/48
Filed: 1999-11-22
Abstract: PROBLEM TO BE SOLVED: To provide a sectional rack without using any screws which is easily assembled in a short time by anyone only by simply fitting members such as columns, shelf boards without using any fixing members such as bolts, nuts, washers and tools in comparison with a conventional steel sectional rack which requires both two washers and a large number bolts and nuts for every corner of a shelf board and a considerably long time for assembling one sectional rack with the problem of a failure in assembly when a bolt is inserted into a wrong long hole and the sectional rack is deformed. SOLUTION: This sectional shelf without using screws is provided with a plurality of columns made of angle steel to be raised at the corners of a quadrilateral, receiving parts which are formed at the opposing opposite sides of the plurality of columns and which comprises insertion parts bent inside from the inner surfaces of the opposite sides, mounting members provided with wedges at both ends as drooping bodies to be freely inserted into and removed from the insertion parts of the receiving parts, and shelf boards to be mounted on the mounting members.
Patent JP-2000187462-A (JP)
Title: Video signal level and offset adjusting device of liquid crystal panel driving part
Inventor: ISHIDA TAKAYA
IPC: G09G3/20
Filed: 1998-12-21
Abstract: PROBLEM TO BE SOLVED: To facilitate adjustment by configuring the device to raise a clamp level in adjusting a level and an offset, and providing a margin to an upper limit to be set by the clamp level. SOLUTION: A prescribed adjustment is performed by shifting a driver to the position of VR1 by a robot hand, measuring an output video signal by a measuring instrument 5 by rotating VR1. At this time, the adjustment is performed so as to control the video signal within the limits from a clamp level generating circuit while rotating VR1. In this case, a level/offset adjusting instruction is issued from a control part 3 in the clamp level generating circuit to start adjusting the level and offset, and also this instruction is supplied to a switching means to drive a relay of which contact output is turned on to short a 1st resistor. Therefore, since a current amplifying transistor is directly impressed with a power supply voltage on the control terminals, the clamp level is raised to a level almost equal to the power supply voltage.
Patent JP-2000190374-A (JP)
Title: Silver streaking inspecting device for transparent plastic plate
Inventor: TAKEBE MASAKI
IPC: B29C45/76
Filed: 1998-12-29
Abstract: PROBLEM TO BE SOLVED: To objectively and simply inspect the silver streaking generated in a transparent plastic plate. SOLUTION: An inspecting device for quantitatively and automatically inspecting the silver streaking on a transparent plastic plate consists of a laser beam generating means, a condensing means for condensing laser beam to the transparent plastic plate, a scanning means for scanning condensed laser beam on the transparent plastic plate, a shading means for shading the laser beam transmitted through the transparent plastic plate, an operation means for calculating the quantity and position of the silver streaking from the detected quantity of refracted laser beam and a scanning position and an image processing means recording the calculated result obtained from the operation means on an image.  In this case, the condensing means condenses laser beam on the transparent plastic plate so that the spot shape of the laser beam becomes an oval shape of which an aspect ratio (long diameter:short diameter) is 5:1-2:1.
Patent JP-H0566659-A (JP)
Title: Process cartridge
Inventor: NISHIO YUKIO
IPC: G03G15/00
Filed: 1990-12-19
Abstract: PURPOSE:To prevent the life of a process cartridge from being determined according to discharged toner housing ability, to prolong the life of the process cartridge and to permit resource saving by providing a discharg mechanism which restores discharged toner stored in a discharged toner tank to a developing device. CONSTITUTION:While the discharged toner is filled to the position of a drift line L1, copying is executed on a paper 26 by using toner T1 which is newly supplied, and printing quality is guaranteed. Therefore, the printing quality of 10000 sheets, for example, is guaranteed. Thereafter, by continuously using the process cartridge, the discharged toner T2 is increased and the discharged toner over the draft line L1 is restored to the developing device 12 through a screw conveyor 30a, a subchamber 30b, and another screw conveyor 30c and mixed with the new toner T1 and used. Thus, the process cartridge is continuously used regardless of the capacity of the discharged toner by restoring the discharged toner T2 to the developing device 12 even though the discharged toner T2 is stored in the discharged toner tank 14.
Patent JP-H04232584-A (JP)
Title: Device for preventing erroneous setting of card
Inventor: EGUCHI HIROJI
IPC: G06K17/00
Filed: 1990-12-28
Abstract: PURPOSE:To offer a card erroneous setting preventing device which prevents many IC cards from being erroneously set to a processing circuit main body. CONSTITUTION:A card erroneous setting preventing device 1 is used when plural cards 2 are set to plural set parts of a processing circuit main body 3 to constitute an arithmetic processing circuit, and individual signals of these set parts are sent to cards 2 set to these set parts, and match or unmatch between card numbers from card number sending parts 5 provided in cards and these individual signals is discriminated by a comparing part 6, and comparison results are displayed on a display part 8. This configuration surely prevents cards from being erroneously set to the set parts.