baber/WOPTO huggingface dataset:
Patent JP-H02214048-A (JP)
Title: Optical head
Inventor: YAMAMOTO MASAKUNI
IPC: G11B7/135
Filed: 1989-02-13
Abstract: PURPOSE:To simplify the constitution of an optical system and to miniaturize the entire part of the optical system by disposing a Faraday element in the optical path of collimated beams of light and splitting and detecting the reflected light from a recording medium by a photodetector which divides the light receiving surface to plural regions. CONSTITUTION:The light emitted from a semiconductor laser 1 is collimated by a collimator lens 2 to the collimated beams of light which arrive through a polarized beam splitter 7 and an optical member 5 for the Faraday element to an objective lens 3. The beams are converged in this lens and the magneto-optical information recording medium 4 are irradiated with the beams. The light irradiating the recording medium 4 is rotated in the linearly polarized light by 45 deg. forward and backward at the time when the light passes the Faraday element and the polarized beam splitter 7 reflects only the polarized light component in the direction perpendicular to the lane of the figure and, therefore, the light is made incident on the photodetector 8. The photodetector 8 detects the quantities of the received light respectively independently on the light receiving surfaces divided to the quadrisected regions A, B, C, D. The information signal and servo signal are computed from the quantities of the received light of the plural regions and are taken out.
Patent JP-H02215943-A (JP)
Title: Fuel injection system for engine
Inventor: IWAKI MASATO
IPC: F02D41/04
Filed: 1989-02-13
Abstract: PURPOSE:To prevent any slippage in an air-fuel ratio as well as to check a variation in engine power by installing a detecting means detecting a feeding state of fuel to a combustion chamber of an engine, and a control means changing a specified period of an injection valve according to this fuel feeding state, respectively. CONSTITUTION:In this fuel injection system, there are provided a first injection valve 3 spraying fuel at the whole driving area of an engine 1 and a second injection valve 6 spraying the fuel after being overlapped by a first injection valve 5 at a high load driving area. A feeding state of atomized fuel to a combustion chamber 2 of the engine 1 is detected by detecting means 7, 8, 10 and 21, and a control means 22 controls to change a specified period of injection ratio of the first injection valve 5 to the second injection valve 6. Thus, any slippage in an air-fuel ratio can be prevented, and a variation in engine power can be checked.
Patent JP-H06220543-A (JP)
Title: High-frequency hardening device for crank shaft and high-frequency hardening method for crank shaft
Inventor: WATANABE HIYOSHI
IPC: C21D9/30
Filed: 1993-01-26
Abstract: PURPOSE:To provide the high-frequency hardening device and high-frequency hardening method adequate for hardening of pins and journals of crank shafts to be produced in middle kinds and middle quantities. CONSTITUTION:This high-frequency hardening device has a pin hardening device 100, a journal hardening device 200 and a crank shaft supporting and rotating device 30. This pin hardening device 100 has pin hardening coils 11 to 14 provided in one piece each for respective kinds of the crank shafts, one piece of pin hardening transformer 15, a pin hardening transformer lifting device 16 and a pin hardening transformer horizontal moving device 17. This journal hardening device 200 has journal hardening coil sets 21 to 24 which are provided for each of respective kinds of the crank shafts and are integrally assembled with the journal hardening coils corresponding to the respective journals, one piece of journal hardening transformer 25, a journal hardening transformer lifting device 26, a journal hardening transformer advancing and retreating device 27 and a journal hardening transformer horizontal moving device 28.
Patent JP-H10211321-A (JP)
Title: Bouncing ball game machine
Inventor: MATSUMOTO KUNIO
IPC: A63F7/02
Filed: 1997-01-29
Abstract: PROBLEM TO BE SOLVED: To provide a bouncing ball game machine which can eject game balls immediately outside a shooting path of game balls even when a plurality of return balls are generated continuously by smoothly and accurately guiding the return balls into the inlet side of a ball returning path. SOLUTION: This bouncing ball game machine is provided with a ball return path 20 between a shooting rail 13 and a guide rail 15 to put back return balls slowed in the course of the guide rail 15 to the side of a lower tray, a vertical guide part 33 below the tip part on the side of the guide rail 15 of the shooting rail 13 to guide the return balls to the ball return path 20, a slant bottom wall part 39 which is inclined askew downward on the side of the guide rail 15 from the lower end side of the vertical guide part 33 and a vertical side wall part 40 below the guide rail 15 facing the vertical guide part 33 being retreated from the tip part of the side of the shooting rail 13 of the guide rail 15.  An open space 35 with a large capacity is formed on the inlet side of the ball return path 20 with the vertical guide part 33, the slant bottom wall part 39 and the vertical side wall part 40 and a bent path part 36 below the ball return path 20 is made to communicate with the open space 35 from between the slant bottom wall part 39 and the vertical side wall part 40.
Patent JP-S58150140-A (JP)
Title: Control device for tracking of optical information recording and reproducing device
Inventor: TANAKA YOSHIHARU
IPC: G11B7/09
Filed: 1982-02-27
Abstract: PURPOSE:To enable tracking control at all times, by eliminating the influence of the DC components in a tracking signal at the pull-in stage of tracking. CONSTITUTION:The quantities of the light detected with a photodetecting surface 11b and a photodetecting surface 11d are summed by an adder 21 and the quantities of the light detected with a photodetecting surface 11a and a photodetecting surface 11c are summed by an adder 22. The difference in the summed quantities of light between both is obtained with a subtractor 28.The differential quantity of light is inputted as a tracking signal through a phase compansating circuit 24 and an amplifier circuit 25 to a driving part 26 for tracking control, by which said signal is used on controlling the driving of a pickup device. A tracking control circuit T is turned on and off with a switch 27. An LPF 28 and a sampling and holding circuit 29 are connected to the connected point of the attenuator 28 of the circuit T and the circuit 24 and the circuit 29 is connected through a compensating resistor 31 to the minus terminal of the adder 22.
Patent JP-S58148728-A (JP)
Title: Molding method of light hardening material
Inventor: FUKUI TAROU
IPC: B29C45/26
Filed: 1982-02-28
Abstract: PURPOSE:To perform molding operation continuously and efficiently by a method wherein a gate is provided in light shielding material and light hardening resin is poured into the molding chamber of a mold that is connected to said gate and is made of light transmitting material before light is irradiated to the above- said light transmitting material at right angles to the longitudinal direction of the above-said gate. CONSTITUTION:A gate 1 is provided in light shielding material 2, and the molding chamber 3 connecting to said gate 1 is made up of light transmitting material 4. The resin that has been poured from the nozzle of a molding device arrives at the molding chamber 3. At this time, when light is irradiated at right angles to the longitudinal direction of the gate 1 from the lamp 12 having the light reflecting plate 11 facing the light transmitting material 4 to said light transmitting material 4, light hardening resin having fluidity charged in the molding chamber 3 commences polymerization and hardens. In this way, since said gate is provided in the light shielding material 2, light hardening resin in said gate 1 does not harden, need not be removed and can be molded efficiently.
Patent JP-H01206884-A (JP)
Title: Reaction force-field engine 4-6 by positive electron spin inversion
Inventor: OOHASHI HIROTOMO
IPC: H02N11/00
Filed: 1988-02-12
Abstract: PURPOSE:To represent a force field similar to that caused by the Meissner effect to be observed in a superconducting phenomenon intentionally and positively, by using bar magnets as electrodes to perform an electric discharge in the manner of rotating in the direction opposite to the right spiral equivalence principle of the spin which is the structure of elementary particles. CONSTITUTION:The direction and intensity of a magnetic field is specified by a large magnet 1. An electric field rotating at superhigh speed is constituted by a driving coil 2 and an exciting and discharging coil 3 so that the whole apparatus has a potential like ring-shaped saw-teeth and constitutes an infinite discharge orbit. Between any electrodes 4, thus, an electric discharge is performed in the same direction by the use of an electromagnetic inductive action.
Patent JP-S63199461-A (JP)
Title: Manufacture of semiconductor device
Inventor: YOSHIKAWA TAKEO
IPC: H01L29/72
Filed: 1987-02-16
Abstract: PURPOSE:To enable stabilization of base-emitter dielectric strength and fining of the base and emitter, by forming an opening in a first polysilicon layer and forming a second polysilicon layer on both sides of the opening and making impurities in the first polysilicon layer diffused into a semiconductor layer through the second polysilicon layer so as to form a diffusion layer and suchlike. CONSTITUTION:Insulating films 6 and 7, a first polysilicon layer 9 which contains one conductivity-type impurities, and an insulating film 11 are laminated on a semiconductor layer 4, and a first opening 12 is formed therein. Next, a second polysilicon layer 13 is formed, and anisotropic etching is performed to make the second polysilicon 13 remain only on both sides of the opening 12. In succession, impurities in the first polysilicon layer 9 are diffused into the second polysilicon layer 13 and further into the semiconductor layer 4 so as to form a diffusion layer 15. Next, an insulating film 16 is formed so as to be buried into the opening 12, and ion implantation of the one conductivity-type impurities is performed in the semiconductor layer 4 through the opening 12, and then a second opening 20 of small width dimension is formed in the insulating films 16 and 18. Next, a third polysilicon layer 21 which contains opposite conductivity-type impurities is formed in a region which involves the opening 20 so that the impurities are diffused into the semiconductor layer 4.
Patent JP-S60177121-A (JP)
Title: Method for dephosphorizing molten steel
Inventor: TERADA OSAMU
IPC: C21C7/064
Filed: 1984-02-23
Abstract: PURPOSE:To dephosphorize efficiently molten steel during tapping by pouring a dephosphorizing agent granulated to <=2mm. grain size on molten steel during tapping under high pressure. CONSTITUTION:A dephosphorizing agent is granulated to <=2mm. grain size by crushing. The granulated dephosphorizing agent 1 is poured on molten steel 2 during tapping with pressurized gas. The poured agent 1 is accelerated by the pressurized gas and enters the molten steel 2. The molten steel 2 contacts directly with the agent 1, and a reaction takes placed in an extended part, so a significant dephosphorizing effect is produced in a short time.
Patent JP-H02211349-A (JP)
Title: Air-fuel ratio controller for internal combustion engine
Inventor: MIYAKE MITSUHIRO
IPC: F02D41/14
Filed: 1989-02-09
Abstract: PURPOSE:To increase the exhaust gas purification efficiency due to a catalyst by deflecting the air-fuel ratio of the combustion gas introduced into the catalyst in vibration form in the vicinity of the theoretical air-fuel ratio and allowing the output of an exhaust gas component detecting means to include the result information in the catalytic purifying action. CONSTITUTION:The first signal whose increase/decrease direction changes on the basis of the variation of the output which sharply varies in the vicinity of the theoretical air-fuel ratio of an O2 sensor 17 which is installed inside or on the downstream side of a catalyst is outputted by a generating means 45. Further, the second signal which vibrates with the cycle shorter than the cycle of the output variation cycle of the O2 sensor 17 on the basis of the engine operation state is outputted by a generating means 46, and the third signal is generated by superposing both signals by a generating means 47, and the air-fuel ratio of the combustion gas which is introduced into the catalyst on the basis of this signal is controlled so as to vibrate in the vicinity of the theoretical air-fuel ratio. Thus, the output of the O2 sensor 17 becomes the output which is obtained by receiving the result information of the catalytic purifying action, and the limit cycle in the air-fuel ratio feedback control becomes large apparently. Thus, the exhaust gas purification efficiency can be increased to the max.
Patent JP-S55125006-A (JP)
Title: Electric motor vehicle controlling device
Inventor: SASAKI KAZUO
IPC: B60L15/28
Filed: 1979-03-16
Abstract: PURPOSE: To control voltage or current of a driving motor to a stable condition by a method wherein stepping is carried out under given conditions, and a current flow angle command set according to the number of steps beforehand is given to a thyristor.  
     CONSTITUTION: A signal VM proportional to a motor current is detected on a detector 2, and a comparator 8 compares the detection signal VM with a set pattern VP. Where VM<VP is affirmative in this case, a decision signal 8a is outputted, AND circuit 10 outputs the second clock signal 10a according to the first clock signal 9a that a clock signal generator 9 outputs. A counter 11 counts the second clock signal 10a, and a step signal 11a in digital value is inputted to a current flow angle command dispatcher 12 according to the number counted. The command dispatcher 12 outputs a current flow angle command signal 12a set beforehand according to an input of the step signal 11a to current flow angle generator 13, and a current flow angle signal 13a synchronized with a reference period signal 5a is outputted to a thyristor gate circuit 7. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H06299170-A (JP)
Title: Hydrocarbon fuel composition mixed with nitrogen- containing dispersion medium
Inventor: MAIKERU JIYON KURAAKU
IPC: C10L1/224
Filed: 1994-03-01
Abstract: PURPOSE: To provide a hydrocarbon fuel composition comprising a hydrocarbon fuel and such an amount of a hydrocarbyl-substituted succinic diamide as to be sufficient to give dispersibility.  
     CONSTITUTION: The hydrocarbyl substituent is desirably polyisobutene, is of a size sufficient to render the diamine soluble in the fuel, typically has 35 to 300 carbon atoms, and the diamine is obtained by reacting at an elevated temperature a secondary amine, for example, an N-alkylpiperazine with either a hydrocarbyl-substituted succinic acid or an anhydride, ester, or monoamide derivative thereof. The hydrocarbyl-substituted succinic acid diamide is particularly useful as a dispersion medium in a fuel composition, holds a sludge forming precipitate dispersed in an internal combustion engine lubricating oil to thereby keep the piston or the piston ring relatively free from the precipitates. 
     COPYRIGHT: (C)1994,JPO
Patent JP-H0834809-A (JP)
Title: Promoter component for catalyst for polymerization of olefin, diolefin and/or acetylenically unsaturated monomer
Inventor: TURNER HOWARD WILLIAM
IPC: C08F210/18
Filed: 1995-01-27
Abstract: A catalyst is prepared by combining a first compound consisting of a bis(cyclopentadienyl)zirconium compound having one of the following general formulae:Wherein:(A-Cp) is either (Cp)(Cp*) or Cp-A'-Cp* and Cp and Cp* are the same or different substituted or unsubstituted cyclopentadienyl radicals;A' is a covalent bridging group;L is an olefin, diolefin or aryne ligand;Zr is zirconium;X<sub>1</sub> and X<sub>2</sub> are, independently, selected from the group consisting of hydride radicals, hydrocarbyl radicals, substituted-hydrocarbyl radicals, organometalloid radicals and the like;X'<sub>1</sub> and X'<sub>2</sub> are joined and bound to the zirconium atom to form a metallacycle, in which the zirconium, X'<sub>1</sub> and X'<sub>2</sub> form a hydrocarbocyclic ring containing from about 3 to about 20 carbon atoms; andR is a substituent on one of the cyclopentadienyl radicals which is also bound to the zirconium atom. With a second compound comprising a cation capable of donating a proton and a bulky, labile anion containing a single boron atom, and a plurality of aromatic radicals capable of stabilizing the zirconium cation formally having a coordination number of 3 and a valence of +4 which is formed as a result of the combination, said second compound having the general formula:         [L'-H]<sup>+</sup>[BAr<sub>1</sub>Ar<sub>2</sub>X<sub>3</sub>X<sub>4</sub>]<sup>-</sup>Wherein:L' is a neutral Lewis base;H is a hydrogen atom;[L'-H]<sup>+</sup> is a Bronsted acid;B is boron in a valence state of 3;Ar<sub>1</sub> and Ar<sub>2</sub> are the same or different aromatic or substituted-aromatic hydrocarbon radicals which may be linked to each other through a stable bridging group; andX<sub>3</sub> and X<sub>4</sub> are, independently, selected from the group consisting of hydride radicals, halide radicals, hydrocarbyl radicals, substituted-hydrocarbyl radicals, organometalloid radicals and the like. Many of the catalysts thus formed are stable and isolable and may be recovered and stored. The catalysts may be preformed and then used to polymerize olefins, diolefins and/or acetylenically unsaturated compounds either alone or in combination with each other or with other monomers or the catalysts may be formed in situ during polymerization by adding the separate components to the polymerization reaction. The catalyst will be formed when the two components are combined in a suitable solvent or diluent at a temperature within the range from about -100°C to about 300°C. The catalysts thus prepared afford better control of polymer molecular weight and are not subject to equilibrium reversal. The catalysts thus produced are also less pyrophoric than the more conventional Ziegler-Natta olefin polymerization catalysts.
Patent JP-S60173434-A (JP)
Title: Torque detector
Inventor: SEKINE YOSHIO
IPC: G01L3/10
Filed: 1984-02-20
Abstract: PURPOSE:To detect torque without reference to ambient temperature by sticking two magnetic layers on the outer periphery of a passive shaft, constituting an oscillation circuit by use of a detection coil wound around them, and detecting the torque as a difference in output frequency variation. CONSTITUTION:The 1st and the 2nd magnetic layers 5 and 6 made of high magnetostrictive materials are made magnetically anisotropic at +45 deg. and -45 deg. from a center axis 2. Then, 8a and 8b are wound around the outer periphery of a rotating shaft 1 through a coil bobbin 7 while covering the magnetic layer 5. The conduction time of transistors (TR) 111 and 112 of the oscillation circuit is determined by the inductance of a collector winding, a capacitor, etc., and increases until a collector current can not hold the TRs saturated after the TRs turn on. The applied torque is detected by regarding variation in the magnetic permeability of each magnetic layer which occurs during the torque application as a difference in variation in oscillation frequency between two oscillation circuits, so the torque in both a standstill and a rotation state is detected together with its direction and the influence of bending stress and variation in ambient temperature is eliminated.
Patent JP-H05235707-A (JP)
Title: Low speed latch circuit
Inventor: UMEMOTO TSUYOSHI
IPC: G08C13/00
Filed: 1992-02-19
Abstract: PURPOSE:To prevent the state of the latch circuit from being changed even when a noise signal whose width is less than a time constant of a low pass filter is invaded to the latch circuit by providing a low pass filter in a feedback loop. CONSTITUTION:A low pass filter 1 comprising a resistor R and a capacitor C is inserted to a point at which a feedback signal D passes. In this case, when noise is superimposed on a stop signal B, noise is superimposed on a feedback signal E, a feedback signal F after passing through the low pass filter 1 comprising the resistor R and the capacitor C has less noise component remarkably, the level reaches a transit level of a logic circuit or below, and the normal operation is obtained at an output C. Moreover, when noise whose logic is '1' is superimposed on a start signal A, an output of logic '1' equivalent to a noise width is superimposed on the output C, and when noise of logic '0' is superimposed on the feedback signal D, a logic 0 output equivalent to a noise width is superimposed on the output C, and after noise is lost, normal operation is attained by the signal latched in the low pass filter 1.
Patent JP-S62190963-A (JP)
Title: Voice transmitting and receiving circuit for regular voice monitor type remote supervisory and controlling equipment
Inventor: NAKANOMORI KENRO
IPC: H04M11/00
Filed: 1986-02-18
Abstract: PURPOSE:To improve the tone quality of a talk by providing a voice delay device which placing a voice receiving circuit in mute mode during information transmission and reception by a voice transmission and reception controller associated with an information transmission and reception controller to prevent a speaker from being driven by an information signal, and also enables a voice communication during the reception of information reception. CONSTITUTION:When a remote supervisory and control station 20 performs transmission, the information transmission and reception controller 1a of a reception-side station 20a to be monitored and controlled remotely detects a control signal f1 or f2 and controls a voice transmission and reception controller 4a. The voice transmission and reception controller 4a brings an input circuit under mute control and also drives and switches a voice switch 13a so that the output of a microphone 11a passes through the voice delay device 12a. Further, when the control signal f1 or f2 is transmitted, it is applied to a speaker 8a while applied to the reception-side information transmission and reception controller 1a, and consequently the speaker sounds until the transmission and reception controller 4a finishes operating, so a narrow-band eliminating filter 9a which removes the frequency f1 or f2 of the control signal is interposed at the input side of the speaker 8a so as to prevent the speaker from sounding as mentioned above.
Patent JP-S54124411-A (JP)
Title: Contactor controlling circuit for electric car
Inventor: YOSHIDA SUSUMU
IPC: B60L1/00
Filed: 1978-03-20
Abstract: PURPOSE: To prevent fusing of contactor, by detecting the voltage of DC power source provided in a contactor controlling circuit for driving load driving DC motor, and determining whether or not the contactor is to be turned ON through comparison of the detected voltage with a predetermined reference value.  
     CONSTITUTION: If voltage of battery B is lower than a certain value at the time when closing switch LS of main contactor MSx is turned ON, inversion of operational amplifier OP is not caused since voltage level VD at the voltage dividing point of resistances R 2  and R 3  is lower than the voltage level VR applied on the inverted input side of operational amplifier OP, so that contact MS of main contactor MSx is not closed. Therefore, it is prevented that contact MS of the main contactor MSx be closed when the battery voltage is lower than a predetermined voltage permitting closing of the contact MS. 
     COPYRIGHT: (C)1979,JPO&Japio