baber/WOPTO huggingface dataset:
Patent JP-S62167678-A (JP)
Title: Servo system for rotary recording medium
Inventor: WACHI SHIGEAKI
IPC: G11B7/09
Filed: 1986-01-20
Abstract: PURPOSE:To reduce a steady-state deviation by using a detection signal being the result of comparison of a phase of signal components outputted from a resonance circuit to change a resonance frequency of the resonance circuit thereby allowing the resonance frequency to follow up the deviated fundamental frequency. CONSTITUTION:A transfer circuit 1 supplying an error signal to a controlled system 2, a resonance circuit 3 whose resonance characteristic is changed by a detection signal of a phase comparator 4, and adders 5, 6 are provided. A control command Xreff consists of a DC component outputted from the error signal detector and a deviated fundamental component A(t) of a rotary recording medium and most of components are the deviated fundamental component comprising periodic function (A sin omegat). In the phase characteristic of the resonance circuit 3, it is known that the phase is inverted by 180 deg. around the resonance frequency omega0, the deviated fundamental component of the rotary recording medium and the output phase of the resonance circuit 3 are compared, its detection signal controls the resonance circuit to control the frequency omega of the deviation fundamental component and the resonance frequency omega0 of the resonance circuit 3 are always made coincident. Thus, a very low steady-state deviation is obtained.
Patent JP-H03212632-A (JP)
Title: Automatic focusing device
Inventor: YAMADA MASATOSHI
IPC: G02B7/28
Filed: 1990-01-17
Abstract: PURPOSE:To obtain the high quality of focusing from the shortest distance to infinity by switching focusing by active range-finding, focusing by passive range-finding after a focusing action by the active range-finding or focusing by direct passive range-finding in accordance with active range-finding data. CONSTITUTION:A distance to an object 16 is measured by an active range- finding system 11 and the focusing action is executed by an active range-finding system 11 when the data is within a specified distance range. When it is out of the specified distance range, a difference between the active range-finding data and the present lens position data is obtained. When the obtained difference is smaller than the set deviation, the passive range-finding system 12 is allowed to execute the focusing action. When the difference is larger than the set deviation, the focusing action is executed by the passive range-finding system 12 after a focusing action based on the active range-finding data.
Patent JP-S59133975-A (JP)
Title: Arc welding machine for ac and dc use
Inventor: NAGASAKA MORITOSHI
IPC: B23K9/067
Filed: 1983-01-19
Abstract: PURPOSE:To generate a flywheel effect at the time of outputting a DC without using a rectifier having a large capacity and a switch and to obtain an economical structure by adding a simple circuit to an igniting circuit of a control rectifying element for constituting a bridge circuit. CONSTITUTION:An auxiliary circuit 11a for always conducting a control rectifying element 2 and 3 forming a bridge rectifying circuit, successively in a bias period only at the time of outputting a DC is added to gates of these control rectifying elements 2, 3. Accordingly, the energy accumulated in a reactor 6 is supplied to only a welding load 9, and all the same effect as a flywheel circuit is provided is obtained. The auxiliary circuit only supplies a gate current for an ignition to the control rectifying element, therefore, an extremely small current capacity will suffice.
Patent JP-S60151576-A (JP)
Title: Infrared detector of human body
Inventor: AKIYAMA SHIYOUICHI
IPC: G01J1/02
Filed: 1984-01-19
Abstract: PURPOSE:To reduce the size of an infrared detector for human body by reflecting infrared rays which are admitted through openings formed in the front wall of a housing from plural concave mirrors as a rear wall internal surface to a plane mirror as a front wall internal surface, and focusing them on an infrared- ray detecting means arranged on the rear wall internal surface. CONSTITUTION:Openings 7 and 8 for the introduction of infrared rays are bored in the front cover which is the front wall of the housing 10, and infrared rays which are not within a detection range are prevented by its louver. Infrared rays incident from the openings 7 and 8 are reflected by composite concave mirrors 1 and 2 provided to the rear wall internal surface of the housing 10, reflected by the plane mirror means 4 provided to the rear wall internal surface opposite said mirrors, and converted on the infrared-ray detecting means 3 provided to the rear wall internal surface of the housing 10. Consequently, the optical-axis directional size of a focusing means is reduced to a half the focal length and the size of the optical system is reduced.
Patent JP-H11244457-A (JP)
Title: Combination type game machine
Inventor: SATO ERIKO
IPC: A63F7/02
Filed: 1999-01-14
Abstract: PROBLEM TO BE SOLVED: To further raise the value of a specified ball entrance, in a combination type game machine. SOLUTION: A 16-successive chucker is provided with herd ball entrances such as the ball entrance and normal ball entrances other than the hard ball entrances and a score combination is hardly established when ball entry display is not performed in a display section corresponding to the hard ball entrance. When a score increase device is opened (S600) and a ball is entered there (S610), a central controller performs the ball entry display in plural display sections 34 (numbers 11, 13, 14 and 15) including the display section corresponding to the ball entrances (S620). Since the probability of performing the ball entry display in the display section corresponding to the ball entrance which is the normal ball entrance is high, the probability of establishing the score combination by ball entry to the score increase device is extremely high.  That is, since the presence/absence of the ball entry to the score increase device are directly connected to the presence/absence of scores, the value of the score increase device 52 is extremely high.
Patent JP-H11202974-A (JP)
Title: Handy terminal
Inventor: TAKEUCHI MASANORI
IPC: G06F3/0488
Filed: 1998-01-20
Abstract: PROBLEM TO BE SOLVED: To speedily and accurately input an order menu. SOLUTION: On an internal surface 11I of one door body 11 which can be spread, a display unit 40 with a touch panel which can display display menu keys 41K forming some of menu keys and can also input an order menu by touching display menu keys 41K is provided and on an internal surface 15I of the other door body 15, push menu keys 61K which form some of the menu keys and can input an order menu by pressing operation are provided. Consequently, the menu keys 61K and 41K can greatly be increased and input operation is made easy.
Patent JP-H08201845-A (JP)
Title: Liquid crystal display device
Inventor: MAEDA KYORI
IPC: G02F1/1368
Filed: 1995-01-23
Abstract: PURPOSE: To provide a liquid crystal display device capable of realizing good display quality without any flickers matching a line inversion driving method, maintaining the life of a liquid crystal panel long and greatly reducing power consumption compared with the line inversion driving method. CONSTITUTION: A pair of glass substrates 101 and 106 constituting a liquid crystal panel are constructed in a manner that the columns of pixel electrodes 20 and opposing electrodes 21a and 21b arrayed along a scanning electrode are alternatively arrayed in the extending direction of a signal electrode X, the pixel electrode column on one glass substrate is placed oppositely to the opposing electrode on the other glass substrate and the opposing and signal electrodes on both glass substrates are driven by means of opposing electrode and signal electrode voltages used in a frame inversion driving method.
Patent JP-H07213380-A (JP)
Title: Stand with folding foot and auxiliary chair with folding foot for sitting up
Inventor: SUMITOMO SHINKEN
IPC: A47C16/00
Filed: 1994-01-28
Abstract: PURPOSE:To prevent the foot from being folded even when the stand is moved by removably restraining an engagement foot part of one of the foot to the foot restraint part at the back of the stand and cramping the foot restraint part and the engagement foot part by a repulsive member. CONSTITUTION:An auxiliary chair 1 consists of a seat 2, foot parts 3 and 4, supporting member 5, and repulsive member 6. Foot parts 3 and 4 consists of engagement foot parts 3a and 4a and base parts 3c and 4c. A restraint part 5d is formed at constant intervals at the opposite position close to an other end part 5c of the supporting member 5. A repulsive member 6 is energized against the engagement foot part 4a of the foot 4 embedded in a restrain part 5d and the wave-shaped slope is abutted at the repulsive power. When the foot parts 3 and 4 are stood, the engagement foot part 4a of the foot 4 is fit in the required restraint part 5d. Thus, the engagement foot part 4a does not removed from the restraint part 5d of the supporting member 5.
Patent JP-H05192705-A (JP)
Title: Flatness controller for rolling strip
Inventor: BABA KANJI
IPC: B21B37/16
Filed: 1992-01-21
Abstract: PURPOSE:To enable exact shape correction even when tension isn't applied to a strip and to prevent defects in shape over the entire length of the strip. CONSTITUTION:An actual shape detector 2 with which the shape can be detected when tension isn't applied and a latent shape detector 3 with which tension is detected when tension is applied are provided, either of those detectors is selected in accordance with the presence or absence of tension that is applied to the strip and, during rolling, the rolled shape is controlled by always detecting the actual shape.
Patent JP-S61167268-A (JP)
Title: Driver ic for thermal head
Inventor: MASUI KEIJI
IPC: H04N1/23
Filed: 1985-01-21
Abstract: PURPOSE:To enable printing of characters with high quality without picture signals being changed during printing and without the necessity of enlarging chip size or increasing the signal number by providing a slave enable signal and a latch pulse generating circuit. CONSTITUTION:The slave enable signal 11' becomes active during the time when a main enable signal 10 is active and becomes inactive with a delay with respect to the signal 10. The signal 11 is obtained by delaying the signals 10. The latch pulse generating circuit 9' is formed by an inverter 15 and an OR circuit 16. An AND is taken at the circuit 16 between the signal 10 and the signal 11' inverted by the inverter 15 while a latch pulse 14' is produced after termination of the signal 10. It may be constituted by a half bit latch without using a flip-flop of the master slave system.
Patent JP-2000203403-A (JP)
Title: Brake hydraulic pressure control device
Inventor: YAMAKOSHI MUTSUO
IPC: B60T8/22
Filed: 1999-01-18
Abstract: PROBLEM TO BE SOLVED: To open for a time even when pressure leaking out to a hydraulic pressure release chamber of a plunger is raised, and to return to its original state when the pressure is reduced by a pressure releasing mechanism. SOLUTION: This control device 31 is composed of a valve mechanism 35 reducing hydraulic pressure at prescribed proportion and transmitting the pressure to a rear wheel brake cylinder by a plunger working in response to the hydraulic pressure from a brake master cylinder, a load detecting system 37 moving a starting point of reducing pressure action of the valve mechanism 35 according to a carrying load, and fail-safe mechanism corresponding to a failure of a front wheel side brake system. In this case, a hydraulic pressure release chamber 51 is partitioned between seal members keeping liquidtight of rear wheel and front wheel brake input hydraulic pressure of side in a plunger 34. To a communicating hole 54 which communicates the hydraulic pressure release chamber 51 to outside air, a closing member made of an elastic member is locked so as to block the communicating hole 54. When the hydraulic pressure leaking into the hydraulic pressure release chamber 51 is raised, the closing member is deformed to release the leaking hydraulic pressure to the outside.
Patent JP-H07220717-A (JP)
Title: Method and device for injecting electrolyte for storage battery
Inventor: ISHII TAKEO
IPC: H01M2/36
Filed: 1994-01-28
Abstract: PURPOSE:To enhance the accuracy of electrolyte injection, to reduce injection time and to enable the electrolyte to be injected continuously by retaining the electrolyte alternately in two tanks before injecting it into a battery jar. CONSTITUTION:A nozzle 24 is installed above one 14 of tanks and an electrolyte 32 is injected through the nozzle 24 with valves 20, 21 being closed. On reaching the upper edge 23a of a bulkhead 23, the electrolyte 32 in the tank 14 is allowed to flow into the other tank 15 from the edge 23a. A sensor 17 at the bottom of the tank 15 senses the electrolyte 32 flowing into the tank 15, and causes a cylinder 25 to move the nozzle 24 above the tank 15, and as the electrolyte 32 is injected into the tank 15 by means of the nozzle 24, the valve 20 below the tank 14 opens and the electrolyte 32 is injected into a battery jar 31 through pipes 18, 22. Thus the tanks are used alternately so as to enable the electrolyte to be continuously injected into a number of battery jars and to prevent the electrolyte 32 from being retained in either of the tanks for a long time, while preventing gelling even with the use of a gel electrolyte.
Patent JP-H03263561-A (JP)
Title: Absorption freezer
Inventor: FURUKAWA MASAHIRO
IPC: F25B15/00
Filed: 1990-01-18
Abstract: PURPOSE:To improve heat exchange performance between rare absorption liquid and concentrated absorption liquid by a heat exchanger during the stop of the one vaporizing absorber drum by providing a plurality vaporizing absorber drums, and low temperature heat exchangers between rare absorption liquid pipes between the vaporizing absorber drums and a high temperature generator, and between different rare absorption liquid pipes. CONSTITUTION:An absorption freezer is provided with a plurality of vaporizing absorber drums 1 and 33, and low temperature heat exchangers 6 and 47 between rare absorption liquid pipes 13 and 4 between the vaporizing absorber drums 1 and 33 and a high temperature generator 8 and between rare absorption liquid pipes 45 and 46. When, during running of absorption freezer, operation of, for example, the vaporizing absorber drum 33 of the vaporizing absorber drums 1 and 33 is stopped, no rare absorption liquid flows to the low temperature generator 47 but rare absorption liquid flows to the low temperature generator 6 approximately at the same speed as that during operation of the two vaporizing absorber drums 1 and 33, and operation of the vaporizing absorber drum 1 can be continued without lowering heat exchange performance of the low temperature heat exchanger 47.
Patent JP-S55101137-A (JP)
Title: Magnetic recording medium
Inventor: YAMADA TOSHIHIKO
IPC: G11B5/735
Filed: 1979-01-29
Abstract: PURPOSE: To obtain a magnetic recording medium superior in conductivity and irregular winding prevention effect by providing a layer, which includes powder of a specific nonmagnetic material, in the side opposite to a magnetic layer on the substrate where the magnetic layer is formed.  
     CONSTITUTION: Layer (back layer) 3 including nonmagnetic material powder such as asbestine, magnesium oxide and manganess carbonate is formed on the back face of substance (for example, polyethylene terephthalate) 2 having surface magnetic layer 1, thereby obtaining a magnetic recording medium. The back layer 3 above is constituted by carbon black of approximately 25W210mμ particle diameter, the nonmagnetic powder above of approximately 0.3W3μ particle diameter and binder resin, and approximately 0.1W5μ thickness after drying is desirable. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H08199850-A (JP)
Title: Vibration control mechanism of structure
Inventor: ISHIMARU TATSUJI
IPC: E04H9/02
Filed: 1995-01-24
Abstract: PURPOSE: To enhance control capability by switching the damper damping coefficient of a dynamic vibration reducer in a number of steps, and, if the stroke of a dynamic-vibration-reducer damper becomes insufficient as disturbance increases, increasing the damping coefficient so that excessive strokes do not arise. CONSTITUTION: If the stroke of a damper 3 becomes ±S1 or greater as disturbance increases, a piston 5 blocks a second passage 7 having a second orifice 9. In this case, a viscous fluid 10 flows through only a first passage 6 having a first orifice 8. When displacement is S1 or more, damping coefficient increases, and when the displacement is S1 or lower the initial damping coefficient is restored, so the damping coefficient is switched with the amount of stroke as a trigger. Further, the damping coefficient may be switched with speed as a trigger as desired. Thus control can be performed even with large disturbance, a device can be made compact, and cost can be reduced.
Patent JP-2000203364-A (JP)
Title: Connecting structure of steering beam and instrument panel
Inventor: NAGABUCHI SENJU
IPC: B62D25/08
Filed: 1999-01-18
Abstract: PROBLEM TO BE SOLVED: To increase rigidity and to reliably absorb the energy caused by a secondary collision by connecting a steering beam and an instrument panel arranged extensively in the lateral direction of a vehicle body with a connecting means which separates them with the energy when a vehicle collides. SOLUTION: Since a steering beam 3 and an instrument panel 1 are connected and fixed, the vertical rigidity of the instrument panel in a non-collision state is reliably secured by the steering beam 3, and the vertical vibration is suppressed. An occupant 12 is brought into contact with a steering wheel 13 at the time of a collision, the longitudinal input load generated at this time is sent through a steering shaft 7, a shaft bracket 6 and the steering beam 3, a clip fitting bracket 4 is moved forward, and a clip 5 is released, thus only the steering beam 3 is deformed to absorb the collision energy.
Patent JP-S57124238-A (JP)
Title: Humidity sensor
Inventor: NAKAMURA TAKESHI
IPC: G01N27/00
Filed: 1981-01-23
Abstract: PURPOSE:To obtain a humidity sensor having characteristics wherein resonance frequencies change roughly linearly with a change in humidity by forming piezoelectric films and electrodes on an oscillator body consisting of an invar alloy. CONSTITUTION:Piezoelectric films 2 are formed on the parts where oscillations are produced of an oscillator body 1 of tuning fork type consisting of an invar alloy and electrodes 3 are formed by a dry plating method on the films 2. This body 1 is grasped and fixed to support bars 5, 6 of a stem 4, and the bar 5 is used as a lead terminal. Other terminal 7 is fixed to the stem 4. A cover is put on this humidity sensor, and a gauge is mounted to the outside surface of the cover. With one end thereof held immersed in water, resonance frequencies are measured and relative humidity is determined. Thereby, the rate of change in the resonance frequencies with respect to relative humidity is made roughly linear, and the need for intricate correction circuits is eliminated.
Patent JP-S5293910-A (JP)
Title: Motor control circuit
Inventor: TOYAMA JINICHI
IPC: B60L11/18
Filed: 1976-02-02
Abstract: PURPOSE: To prevent a contactor fused combining and heighten a reliability by diminishing a contactro throw in and breaking current even when a forward running of a motor of an electrical car is changed to a reverse direction suddenly. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H11132874-A (JP)
Title: Load cell and load detector provided with the same
Inventor: HARADA SHUNJI
IPC: G01G3/14
Filed: 1998-01-21
Abstract: PROBLEM TO BE SOLVED: To improve the load measuring accuracy of a load cell. SOLUTION: A circular hole 12 with a specific depth is punched at the center of a first end face 11a of a cylindrical, elastic body 11, and a bottom part constitutes a load application surface 13. An annular recessed groove 15 is provided concentrically with a circular hole 12 outside the circular hole 12 on a second end face 11b at the opposite side of at least a first end face 11a of the cylindrical, elastic body 11, the bottom part of the annular recessed groove 15 is set to a thin, ring-shaped strain-generating part 18, and at the same time a thick, cylindrical fixed part 16 is provided outside the strain- generating part 18. Strain gauges SG1-SG8 are applied to the strain-generating part 18.  A distance y from the load application surface 13 to the mounting surface of the strain gauges at the upper strain part is set to 0.2 to 2 times larger than the shortest distance (e) from a center axis line Lc of the cylindrical elastic body to the strain gauges.
Patent JP-S54102290-A (JP)
Title: Electrode for electrolysis
Inventor: NAKAMURA AKIO
IPC: C25B11/10
Filed: 1978-01-31
Abstract: PURPOSE: The above mentioned electrode, composed of valve metal basic material preliminary covered platinum metal, covered by the covering material composed of a fixed ratio of palladium oxide, cerium oxide and titanium oxide and repressed the formation of easily soluble metallic Pd by intercepting reducing power of the basic material metal.  
     CONSTITUTION: Electroconductive basic material, especially valve metal basic material, such as Ti, Ta etc., preliminary covered platinum metal, such as Pt etc., by optional method, is covered by covering material composed of more than 60% of palladium oxide and less than 40% of total cerium oxide and titanium oxide. On this ocassion, mol ratio of cerium oxide and titanium oxide, is set up at 90;10W 20; 80, preferably 90;10W30;70. Electric current pass and electrical contact between the basic material and covering layers, are sufficiently guaranteed by forming the electrode for electrolysis in such a way and minuteness of the covering layer itself, mechanical strength between the above layers and basic material and adhesive property, are heightened. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S58126988-A (JP)
Title: Manufacture of shadow mask
Inventor: SAKATA FUSAO
IPC: H01J9/14
Filed: 1982-01-26
Abstract: PURPOSE:To remove dust on the face of film effectively by forming photoresist films on both faces of a long material for a shadow mask and moving the films while keeping the films in contact with adhesive rolls of specified hardness before exposing and printing. CONSTITUTION:Resist films are formed by applying photoresist liquid on both faces of a long material 1 for a shadow mask. The material 1 having a resist film on both sides is passed through a pair of adhesive rolls 2 formed by covering a mandrel 21 with a member 22 composed mainly of adhesive polyurethane and having hardness of 9+ or -3 measured according to JIS K6301-5. At this time, the material 1 is passed in the direction of the arrow 6 while keeping the films in contact with the rolls 2 to remove dust on the resist films by rolls 2. Then, the films are sent between a pair of plates 5 on which negative pattern of an extracting line 3 and a beam passing hole 4 for exposure and printing.