baber/WOPTO huggingface dataset:
Patent JP-S5577210-A (JP)
Title: Detection circuit for differential amplifier
Inventor: EGAWA AKIRA
IPC: H03D1/00
Filed: 1978-12-06
Abstract: PURPOSE: To minimize an error caused phase variation among a residual voltage, difference signal and synchronizing signal by synchronously detecting a difference in voltage between two outputs of secondary coils of a transformer by a rectangular voltage equivalent to the half of the sum voltage and then by smoothing the extracted difference voltage.  
     CONSTITUTION: Difference output voltage (e 1 -e 2 ) between secondary coils L 1  and L 2  of differential transformer 10 is amplified 11 and led to detecting analog switch 12. A value obtained by having 13 difference voltage (e 1 -e 2 ) is applied one input terminal of difference amplifier 14, and voltage (-e 2 ) at the middle point between coils L 1  and L 2  to the other; and voltage (e 1 +e 2 )/2 is sent from amplifier 14 to zero-cross detector 15, which applies switch 12 with a rectangular voltage of a level equivalent to the polarity of the voltage. Consequently, switch 12 is changed over to detect synchronously difference voltage (e 1 -e 2 ) and a direct-current voltage  smoothed by LPF16 is outputted. Consequently, an error due to phase variation  among a residual voltage, difference signal and synchronizing signal can be reduced  extremely. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H10310199-A (JP)
Title: Uncapping device
Inventor: MORI AKIRA
IPC: B67B7/15
Filed: 1997-05-06
Abstract: PROBLEM TO BE SOLVED: To remove a bottle cap by an exclusive tool. SOLUTION: A kook-shaped claw 2 is fitted to the front end of a handle 1 with a pin 3. The claw 2 is hooked on a cap 6 and pulled up by using a nonslip part 4 as a supporting part to remove the cap 6.
Patent JP-H10323807-A (JP)
Title: Boron fixing method for lumber
Inventor: IKEDA MORIYOSHI
IPC: B27K3/02
Filed: 1997-05-26
Abstract: PROBLEM TO BE SOLVED: To inhibit the leaching property of boron into lumber from generating at least as an assistant for a lumber treating agent, improve the fixing and, harden the surface of the lumber by acetylating the surface by applying, soaking and spray-coating, and at the same time, prevent the weight reduction of one layer to be caused by water from generating by a compound with boron. SOLUTION: By applying to lumber, spraying or filling magnesium acetate which is dissolved in water, or in a solution wherein 2% of magnesium hydroxide is dissolved in water to which acetic acid is added, magnesium orthoborate which is water unsoluble, is formed in the lumber with boron contained in 'lumber improver' which is a compound of colloidal silica, boric acid and chitosan, and is fixed in the lumber, and the surface of the lumber is acetylated by excessive acetic acid, and the boron is prevented from leaching by the consumption of acetic acid.
Patent JP-H0316788-A (JP)
Title: Recording material
Inventor: FURUYA HIROMI
IPC: B41M5/30
Filed: 1989-06-14
Abstract: PURPOSE:To improve coloring sensitivity, to be adapted to record at a high speed and to improve skin whiteness and conservation by employing two types of phenol compounds specified as developer in case of recording by utilizing coloring reaction between leuco dye and the developer for coloring at the time of contact. CONSTITUTION:In a recording material utilizing coloring reaction between leuco dye and developer for coloring at the time of contact, at least one type of phenol compound represented by a formulae (I) and (II). In the formulae, R1 is aryl group or aralkyl group which may have a substituent, R2 is bivalent saturated or unsaturated hydrocarbon group, X is lower alkyl group, alkoxy group, alkenyl group or halogen atom. m is integer numbers of 0-4, and n is integer numbers of 1-3. Thus, excellent coloring sensitivity is provided, proper recording at a high speed, high skin whiteness and excellent conservation are provided.
Patent JP-H0317841-A (JP)
Title: Optical recording medium
Inventor: UEDA YUTAKA
IPC: G11B7/257
Filed: 1989-06-14
Abstract: PURPOSE:To increase the redundancy of the conditions for the film formation of a protective layer and to improve the yield of the film formation by specifying the material of the protective layer and the layer thickness of the optical recording medium formed by providing a recording layer with which a reversible phase change is generated when irradiated with a light beam and the protective layer covering this layer on a transparent substrate. CONSTITUTION:Resins, such as polycarbonate, PMMA and PET or glass, etc., are used for the substrate material and the resin materials are more preferable in terms of a recording sensitivity. Materials, such as GeTe, Ge-Te alloy, In-Sb alloy, In-Se alloy and Sb-Te alloy, with which the phase change between the crystal and amorphous phases is possible are used as the phase change material used for the recording layer. The recording layer is put in an unrecording state when the layer is amorphous. This part is crystallized to execute recording. The protective layer is then deposited on the recording layer by a sputtering method or the like. Ti, Zr or the alloy thereof is used for the material of this time and the film thereof is formed to >=40mm. No influence is exerted to the reflectivity of the medium in spite of the minor fluctuation in the film thickness of the protective layer if the medium is formed in such a manner.
Patent JP-H10323254-A (JP)
Title: Assembling structure for chair
Inventor: KOBAYASHI SHIGEKI
IPC: A47C5/10
Filed: 1997-05-26
Abstract: PROBLEM TO BE SOLVED: To provide an assembling structure for a chair in which a support body such as a seat back plate and an outer surface plate such as a seat back backing plate to be installed on the support body such as the seat back plate can be easily and securely installed. SOLUTION: Support legs 15... are protruded on a seat back backing plate 10, and tips of the support legs 15 are connected by lock levers 16. In a seat back plate 9, receiving grooves 20 to receive the support legs 15 and the lock levers 16 are provided. In the receiving grooves 20, lock shoulders are provided to be engaged with lower edges of the lock levers 16. The seat back backing plate 10 is applied to a back surface of the seat back plate 9, and it is pressed to the seat back plate 9, then the lock levers 16 are engaged with the lock shoulders, thereby the seat back backing plate 10 can be installed on the seat back plate 9.
Patent JP-S6131656-A (JP)
Title: Fuel injection pump
Inventor: HISHINUMA OSAMU
IPC: F02M41/14
Filed: 1984-07-20
Abstract: PURPOSE:To simplify the structure of a fuel injection valve to aim at reducing the cost thereof, by dividing a pressure chamber communicated with a compression chamber which is pressurized in association with the rotation of a pump, into two subpressure chambers with the use of a plunger fitted into the pressure chamber, and by enabling the amounts of fuel fed to both pressure subchambers to be controlled with the use of only one shut-off means. CONSTITUTION:An injection plunger 9 which defines a first pressure chamber 100 communicated with fuel suction passages 40 in the number equal to the number of engine cylinders and a compression chamber 100 between a pair of pressure feed plungers 5, and a second pressure chamber 11 to which suction fuel passages 19 in the number equal to the number of engine cylinders are opened, is slidably fitted in a shaft 1 in which the pair of pressure feed plungers 5 are disposed, being opposed diametrial to each other while the plungers 5 are cooperated with a roller ring 4. Further, a solenoid valve 15 as a shut-off means is disposed between fuel passages 16, 14 to which fuel at a pressure P1 is fed, and the fuel passage 14 is selectively communicated with either a control passage 13 (not shown) which is adapated to be communicated with the first pressure chamber 10 or the suction fuel passages 19. Further, this solenoid valve 15 controls the amount of fuel fed to the pressure chambers 10, 11.
Patent JP-H01318295-A (JP)
Title: Cooling device for electric apparatus
Inventor: YAMAMOTO HARUHIKO
IPC: H05K7/20
Filed: 1988-06-20
Abstract: PURPOSE:To improve performance, to reduce size, and to prevent dewing on an electric apparatus by providing a cooling device with a hermetically sealed box made of a heat-insulating material, a unit for preventing dewing and frosting on cooling modules, and a cooling unit for supplying a plurality of coolants to the respective cooling modules. CONSTITUTION:A plurality of cooling modules 4 are contained within a case 17, and a predetermined cooling module 4 is accommodated within a hermetically sealed box 5. A low temperature coolant such as freon and carbon fluoride is supplied so as to be circulated into the cooling module 4 in the hermetically sealed box 5 through a pipe 8A. At the time of cooling, the hermetically sealed box 5 is dehumidified by a dehumidifier 6A and the temperature within the hermetically sealed box 5 is heated to an external temperature by a heater unit 10 to prevent dewing and frosting at the time of cooling start and stop. Accordingly, a cooling device not only free from dewing and frosting but also reduced in size with simpler and compact design and improved in performance can be obtained.
Patent JP-H05339756-A (JP)
Title: Production of die cutter
Inventor: SUGANO YASUSHI
IPC: B26F1/44
Filed: 1992-06-11
Abstract: PURPOSE:To produce a die cutter having a cutting edge on the outer peripheral surface of a hard metallic cylinder coated with a resist by baking patterns to the surface of this cylinder, then subjecting the cylinder to developing, etching treatment and resist removal and etching the surface. CONSTITUTION:The cylinder made of a high-hardness metal is subjected to a surface treatment, such as grinding and is finished smooth, thereafter, the oil at the time of grinding is removed and the resist is applied thereon. An original plotted with patterns of cuts or folding seams is photographed to form a patterned original plate. The patterns are baked on the outer peripheral surface of the cylinder coated with the resist by this plate. After the resist is developed, the resist is etched by FeCl3, etc., to allow the resist 9 to remain at the front end of the formed blade 8. The pattern parts of the patterned original plate are thus formed of the resist. In succession, the remaining etching after the residual resist is removed then the finish etching is executed to form the cylinder formed with the cutting edge 8A having a sharp front end. The die cutter is thus produced in a short period of time without requiring heat rays.
Patent JP-H052450-A (JP)
Title: Input device for two-dimensional vector information
Inventor: TANNO MANABU
IPC: G06F3/038
Filed: 1991-06-24
Abstract: PURPOSE:To facilitate the input of a fixed value with use of a mouse. CONSTITUTION:When the fixed value is set at a quantitative value setting device 14, a shift deciding device 12 counts the increase and the decrease of the fixed value in accordance with the shifted variable detected by a shifted variable detector 11. The device 12 also sends the shifted variable to a direction deciding device 13 when the shift is complete. The device 13 decide the sifting direction based on the shifted variable of each dimension. Then the device 14 generates a pulse to show the shift of the fixed value in the direction where the shift is approved by the device 13 and transmits the pulse to a computer device 2. When the fixed value is set at OFF, the output of the detector 11 is directly inputted to the device 14. Thus the fixed value is generated with a series of shifts defined as a single unit shift regardless of the sifted variable. Then it is possible to solve such a conventional problem where the input of the desired value is impossible or difficult.
Patent JP-H05338337-A (JP)
Title: Recording sheet size detecting method and printer for which that method is used
Inventor: MASAKI TOMOAKI
IPC: B65H7/02
Filed: 1992-06-11
Abstract: PURPOSE:To make correction of an error easy, by constituting the title method so that a plurality of sheet detecting parts are provided on a sheet conveying path in a widthwise direction at intervals, one signal varying its level in accordance with a detecting condition is made to put out and a sheet size is decided based on the signal level. CONSTITUTION:A sensor is formed of paper length detecting mechanisms 204, 205, respective of which are constituted of shafts 210, 212 fitted with shading plates 201, 202 and levers 211, 213. Then when forms are fed, the levers 211, 213 are turned by being pressed, the shading plates 201, 202 also are turned, a light path of a light emitting diode 203 is opened and the form 220 is detected. The shading plates 201, 202 are lowered, restored, light of the light emitting diode is intercepted and a paper length is detected. When a form is recording paper 221, it becomes that only the paper length detecting mechanism 204 operates. Therefore, a paper width is decided whether both the paper length detecting mechanisms 204, 205 operate together or not.
Patent JP-S6132116-A (JP)
Title: Cross point controller of automatic carrying truck
Inventor: ITO SOSUKE
IPC: G05D1/02
Filed: 1984-07-24
Abstract: PURPOSE:To prevent collision at a cross point by providing respectively a priority transmitter and a priority receiver to plural automatic carrying trucks progreased while passing through the cross point and discriminating the priority so as to pass the cross point. CONSTITUTION:When an automatic carrying truck (own car) runs on a running path 10 and reaches a corresponding start point 10a, a priority transmitter 3 transmits an ultrasonic wave in a frequency corresponding to the priority set by a priority setter 2 and a priority receiver 4 receiving the priority signal of other carrying truck (other car) is brought into the reception ready at the same time. When the own car runs and completes correspondence and the priority signal of other car is not received until the car reaches a deceleration point 10b, the correspondence is finished and the car passes in high speed. When the priority signal of other car is received, it is discriminated by a priority comparator controller 5, and when the priority of the own car is higher, the car passes by in high speed and when the priority of the own car is low conversely, the deceleration is started at the deceleration point 10b and the car stops at a stop point 10c. After the car stops at the stop point 10c, the other car passes in front of the car (progressing direction) and a foreign material detection signal is lost, the car is started and the cross point is passed.
Patent JP-S5855502-A (JP)
Title: Preparation of metal chromium plate
Inventor: MASUDA YOSHIMICHI
IPC: B22F3/24
Filed: 1981-09-28
Abstract: PURPOSE:To obtain a Cr metal plate according to a powder rolling method, by a method wherein a rolled plate formed by rolling a Cr powder is sintered at a specific temp. and the sintered plate is annealed after re-rolled at a specific draft. CONSTITUTION:A metal Cr powder is rolled by using, for example, two rolls to form a rolled plate and the resulting rolled plate is sintered at 900-1,400 deg.C in an electric furnace. In this case, a sintering protective gas such as H2 or Ar may be used. When the sintering temp. is made lower than the lower limit, sintering becomes insufficient and, when exceeds the upper limit, the sublimation of Cr is made remarkable. In the next stage, the sintered plate is re-rolled at a draft of 5-50% by two rolls. When the aforementioned draft is not attained by one rolling, rolling is repeated. Herein, when the draft is equal to or lower than the lower limit, the tensile strength of the material to be rolled is not improved and, when exceeds the upper limit, crack is formed. At last, the re-rolled plate is reheated at about 500-1,100 deg.C to remove strain or to eliminate fine crack. This sintering operator may be carried out in the presence of an inert gas.
Patent JP-H11329843-A (JP)
Title: Laminated inductor
Inventor: KATAOKA MITSUMUNE
IPC: H01F17/00
Filed: 1998-05-14
Abstract: PROBLEM TO BE SOLVED: To provide a laminated inductor capable of avoiding direct adhesion between a magnetic body layer and a coil conductor sufficiently displaying the proper magnetic characteristics of a material, thereby obviating deterioration in the inductance and impedance characteristics. SOLUTION: The laminated inductor is structured of porous ceramic layers 6 formed between a magnetic body layer 3 and coil conductors 4, so that the porous ceramic layers 6 may be held between the magnetic body layer 3 and the coil conductors 4 not to bring the magnetic body layer 3 and the coil conductor 4 into direct contact. Through these procedures, the effect of stress due to the difference in the physical properties of both elements can be miminized.
Patent JP-S5675771-A (JP)
Title: Facsimile device
Inventor: MANIWA YOSHIO
IPC: H04N1/00
Filed: 1979-11-27
Abstract: PURPOSE:To enable the equal speed scanning in high speed, by equally dividing the memory area of memory unit with a given capacity of compressed information, taking one section as one page, and performing the storage and transmission of video signal in page unit. CONSTITUTION:The memory area is divided by n in the area of the capacity less than the amount of compressed information for one sheet of original compressed with the maximum compressing rate. Further, this divided one section is taken as one page and the storage and transmission of the video signal are made in page unit. Further, m is the number of words stored in one page, and l is the number of parallel bits to represent the memory area number when the memory area in n pages is located in parallel.
Patent JP-H01321864-A (JP)
Title: Controller for pulse width modulating system inverter
Inventor: TERUNUMA MUTSUHIRO
IPC: H02M7/48
Filed: 1988-06-22
Abstract: PURPOSE:To prevent the deterioration of the withstand voltage of a switching element by providing all switching elements in one of upper or lower arm of a main circuit with ON signal prior to the gate start of an inverter upon starting the gate of the inverter. CONSTITUTION:A DC power, supplied from a trolley wire through a pantograph and a LC filter circuit, is converted into 3-phase AC power by a VVVF inverter device, consisting of a main circuit TM, a PWM signal control unit PC, a gate signal generating unit GG and the like, and is supplied to an induction motor M to run an electric car. The torque of the motor M is determined by a slip frequency Fs and, therefore, an inverter frequency is obtained by a motor current control unit CC and the like and pulse width modulation is effected through the PWM signal control unit PC. In this case, the GTOs of all phases, existing in one of a main circuit arm, are provided with ON signals simultaneously and, thereafter, the gates are started. According to this method, the deterioration of the withstand voltage of switching elements may be prevented upon the arc-extinguishing of said GTOs.
Patent JP-H11343810-A (JP)
Title: Turbine
Inventor: ISHIBASHI KOJI
IPC: F01D5/20
Filed: 1998-06-02
Abstract: PROBLEM TO BE SOLVED: To reduce the extreme end leak quantity of a moving turbine blade to improve efficiency of the turbine by arranging shielding members having proper intervals and height on the casing side or the diaphragm ring side of spaces surrounded with a plurality of fins, and zigzag arranging them in adjoining spaces. SOLUTION: The extreme end of a moving turbine blade 1 is integratedly formed with a shroud 2, and a plurality of fins 4 are arranged in the axial direction on a casing 3 surrounding the outer circumference of the moving turbine blade 1. In this case, on the casing 3 side of spaces 6 sandwiched with the respective fins 4, shielding members 8 having height equal to or less than the fin height are arranged at proper intervals in the circumferential direction. The shielding members 8 are zigzag arranged in the adjoining spaces 6. When working fluid passes through the interblade flow passage 9 of the moving turbine blades 1, and when a flow 10 entering to the extreme end part of the moving turbine blade 1 flows in the space 6, the flow in the rotating direction is dammed up by the shielding members 8. Hereby outflow to the next fin 4 is prevented.
Patent JP-S638573-A (JP)
Title: Test system configuration
Inventor: TOKUTAKE YOSHIO
IPC: G01R31/28
Filed: 1986-06-28
Abstract: PURPOSE:To curtail the developing man-hour of a testing machine, by arranging testing machines capable of various functions singly to operate as a test system comprising a plurality of testing machines when they are inserted into a specified slot of another testing system. CONSTITUTION:Testing machines X are operated singly, for example, to test functions of printers A, B, C... independently. When the testing machines X are inserted into a specified slot (test slot) of a testing system Y, they act as another testing system Y composed of a desired number of the testing machines X, for example, as burn-in testing machine. To achieve this, a DC voltage and a temperature control signal necessary for the burn-in testing are supplied to the testing system Y from the testing machines X and an interface line is provided between the testing machines X and an object to be tested, for example, printed circuit board, for performing a burn-in test and then, a burn-in test is performed according to a test mode signal from the testing system Y.
Patent JP-H11342319-A (JP)
Title: Gas treating device
Inventor: KAWAI HIROHARU
IPC: B01D53/86
Filed: 1998-06-02
Abstract: PROBLEM TO BE SOLVED: To treat a large amount of gas while restraining an increase in installation cost and operating cost, an increase in harmful gas such as NOx , and deterioration of a catalyst. SOLUTION: A reactor 1 of a gas treating device is divided into plural sectional reaction parts along a reaction pass thereof. The reaction parts each are partially packed with solid catalysts 2a, 2b, 2c, 2d. Gas to be treated is divided into portions and the portions each are introduced into voids 3a, 3b, 3c, 3d of the reaction parts, and also reaction gas for gas treatment is introduced into a void 3a of the inlet at one end of the reactor 1 and the formed gas is discharged from the outlet at the other end of the reactor 1. As the reaction gas, for example, air is used, and in general, it is heated to a necessary temperature in advance. Into the voids 3b, 3c, 3d, preferably, cooling gas for keeping the inside of the reactor at a temperature causing no trouble, for example, air of room temperature is introduced.  This gas treating device is used, for example, in making harmless treatment of ammonia and hydrogen containing gas discharged from an organic metal chemical vapor phase growing device used for growing GaN base semiconductors.
Patent JP-H024463-A (JP)
Title: Spray gun
Inventor: SAKAMOTO TAKESHI
IPC: B05B7/04
Filed: 1988-06-21
Abstract: PURPOSE:To discontinue feeding of a spraying material and prevent the spraying material from dripping at the time of stopping air jetting by providing a movable needle from the outside in an air jetting tube. CONSTITUTION:When a spray gun 1 is stopped, a rear space 7 communicates with a main valve by releasing a press button of a three-way valve, and the high pressure air is introduced therein. Said high pressure gets over the pressure of a front space 9 to move an air jetting tube engaging fitment 10 to the front. When the air jetting tube fitment 10 is moved forward, a needle 3 is also moved simultaneously. In said system, air jetting is discontinued first, and then the introduction of a spraying material is discontinued. The delay of time, however, is very slight, and almost simultaneous when the viscosity of the spraying material and the like are taken into consideration. Thus, the dripping of spraying material can be prevented at the time of discontinuing air feeding.