baber/WOPTO huggingface dataset:
Patent JP-H0442543-A (JP)
Title: Electric field effect transistor
Inventor: TANAKA TOKUJI
IPC: H01L29/812
Filed: 1990-06-08
Abstract: PURPOSE:To obtain a chemical semiconductor crystal for a suitable electric field effect transistor using a microwave amplifier by a method wherein a super-lattice layer is provided on a boundary face between a semiconductor substrate and a buffer layer and within the buffer layer. CONSTITUTION:In a chemical semiconductor crystal for an electric field effect transistor, a first super-lattice layer 101 alternately laminating each 10 layers of undoped AlGaAs and GaAs is arranged on a GaAs substrate 31, and further thereon, a second super-lattice layer 102 alternately laminating each 10 layers of undoped GaAs layer 11a, undoped AlGaAs and GaAs, and undoped GaAs layer 11b, n-AlGaAs 12, and n-GaAs layer 13 are successively laminated to form the transistor. In the chemical semiconductor crystal for the electric field effect transistor, the super-lattice layer is arranged at 2 places of a boundary face between a semiconductor substrate and a buffer layer and within the buffer layer, whereby a bad influence of impurity from the substrate side (the inside and surface) and deterioration of a pinch-off characteristic due to fluctuations of the undoped GaAs layer and carrier concentration can be prevented and the electric field effect transistor characteristic can be improved.
Patent JP-S5674605-A (JP)
Title: Strain measuring device
Inventor: TSUJITSUGI YOSHIYUKI
IPC: G01B7/16
Filed: 1979-11-22
Abstract: PURPOSE: To raise a measuring accuracy by compensating the influence of resistance of a lead wire.  
     CONSTITUTION: This device is used for measuring a variation of the resistance value of a strain gauge, which is caused in case when stress, load or other physical variation has been added to the substance to be measured. The bridge output voltage in case when the switch S has been opened by the controller 5' of such a device is amplified through the amplifier 2 and the A-D converter 3 to convert to digital value, and it is temporarily stored in the register 7. Subsequently, the bridge output voltage in case when the switch S has been closed by the controller 5' is converted to the digital value in the same way as said procedures, and it is temporarily stored in other register. And, this value and the value stored in said register are operated through the operator 8, and its result is displayed on the display device  4. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H09331472-A (JP)
Title: Display controller
Inventor: KONO YOSUKE
IPC: G03B11/04
Filed: 1996-06-12
Abstract: PROBLEM TO BE SOLVED: To suppress power consumption and mis-operation by stopping display of an image of an object in a prescribed display section and stopping processing of information received by a prescribed entry section when it is detected that a photographer approaches an optical finder. SOLUTION: Since a light quantity made incident onto a light receiving element 43 is decreased when a photographer 101 approaches an eyepiece 2A, it is detected that the photographer 101 approaches the eyepiece 2A of an electronic camera 1 due to a change in an electric signal from the light receiving element 43 so as to stop display of an image in an LCD 6 and processing of the information received by a touch tablet 6A. The display of the LCD 6 not required when the photographer 101 uses a finder 2 is stopped to suppress power consumption and the processing of the information entered by the touch tablet 6A is stopped to prevent mis-operation even when a nose or the like of the photographer 101 is in contact with the touch tablet 6A.
Patent JP-H0316606-A (JP)
Title: Method and device for removing bubble in high-viscosity fluid
Inventor: TANAKA HIDENORI
IPC: B01D19/00
Filed: 1989-06-14
Abstract: PURPOSE:To remove the bubbles in a high-viscosity fluid by dropping the fluid supplied into a vacuum vessel in the form of a thin curtain by a thin film forming pipe. CONSTITUTION:The vacuum vessel 1 is evacuated by a vacuum pump 5, a flow control valve 9 is then opened, and the high-viscosity fluid is sucked into the vessel 1. The fluid flows down from a slit 3b and slowly falls in the form of a thin curtain A because of its high viscosity. The bubbles on the surface of the thin curtain A are easily burst, and the air in the bubbles is sucked by the vacuum pump 5 and discharged to the outside. The defoamed fluid is gradually accumulated on the bottom of the vessel 1. A discharge control valve 7 is opened to discharge the fluid accumulated to some extent from a discharge pipe 4. The bubbles are efficiently removed in this way.
Patent JP-S5675955-A (JP)
Title: Solenoid type fuel injection valve
Inventor: TSUCHIYA TAKAO
IPC: F02M51/06
Filed: 1979-11-21
Abstract: PURPOSE: To improve atomizing performance of injected fuel, by forming swirl passages having their openings in the tangential direction on the circumference of a ball type solenoid fuel injection valve.  
     CONSTITUTION: A housing 1 of injection valve contains a connector pipe 2 forming a stationary core, stopper 21 forming a fuel passage 26 and seat 12 having a fuel injection port 13. A ball valve 16 is held by the pipe 2, stopper 21 and seat 12, being pressed by a spring 15, to regulate the opening of the injection port 13. A swirl plate 20, set along the ball valve 16 between the seat 12 and stopper 21, has swirl passages 24 with their openings in the tangential direction with regard to a guide hole 22 in which the ball valve 16 is positioned, so that fuel from the passage 26 swirls into the guide hole 22. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H11345833-A (JP)
Title: Manufacture of electronic components
Inventor: MIKI KATSUMASA
IPC: H01L41/22
Filed: 1998-06-01
Abstract: PROBLEM TO BE SOLVED: To provide a manufacture of electronic components which contribute to cost reduction of electronic components by facilitating the mounting of weak elements, and realizing the efficiency of process. SOLUTION: Man-hours can be reduced through the integration of the process of annexing an element part 34 bonded with a temporary board 33 by resin to an element annexing part 32 provided at an element transfer jig 31, and removing the temporary board 33 by etching, and after mounting all the element parts 34 at the same time in piles on a mounting board making in batch the processes of peeling off the element part 34 and the element transcribing jig 31, and furthermore the handling of a weak element is facilitated, and the manufacture contributes to the downsizing of the electronic components.
Patent JP-S6041793-A (JP)
Inventor: MATSUNAGA SHINICHI
IPC: H05B6/12
Filed: 1983-08-18
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H09331293-A (JP)
Title: Optical transmitter and optical transmission system
Inventor: HAYASHI YUKIO
IPC: H04B10/07
Filed: 1996-06-12
Abstract: PROBLEM TO BE SOLVED: To reduce the waveform distortion of signals on the reception side of an optical transmission system after light is transmitted through an optical fiber by performing wavelength dispersion on the optical fiber. SOLUTION: A light transmitter is constituted of an attenuator 1, a semiconductor laser 2, a fiber-optic amplifier 3, an optical degree-of-modulation detector 4, an optical amplification gain detecting circuit 5, and a processor 8 which calculates an optical degree of modulation (m) from a required carrier-to-noise ratio (CNR) and an optical amplification gain G. The optical transmitter suppresses the occurrence of wavelength chirping in the semiconductor laser 2 by lowering the degree of modulation of input signals without lowering the CNR by controlling the degree of modulation and optical amplification gain of the input signals to calculated or inputted values and amplifying the output light 2a of the laser 2 by means of the amplifier 3.
Patent JP-H11346485-A (JP)
Title: Stator for ultrasonic motor
Inventor: SAWATO YUICHI
IPC: H02N2/00
Filed: 1998-06-01
Abstract: PROBLEM TO BE SOLVED: To manufacture an ultrasonic motor having higher speed and output at low cost, while enhancing productivity of stator more effectively. SOLUTION: An annular resilient body 1 in the stator of an ultrasonic motor has a specified number of comb-teeth 2 arranged annularly and a slot 3 is formed between adjacent comb-teeth 2. The circumferential side face 2a of the comb-teeth 2 is slightly tapered with respect to a plane 7 perpendicular to the bottom 3a of the slot, such that the cross-section of the slot 3 is enlarged from the bottom 3a of the slot toward the opening side. More specifically, the circumferential width at the tooth crest 2b is shorter than that at the tooth flank 2c. Furthermore, corner parts on the bottom 3a of the slot and on the circumferential side face 2a of the comb-tooth 2 are rounded.
Patent JP-H0443305-A (JP)
Title: Optical waveguide array using two-dimensional distributed refractive index lens and production of same lens
Inventor: HIDA MANABU
IPC: G02B6/122
Filed: 1990-06-08
Abstract: PURPOSE:To constitute the optical waveguide array at low cost by fixing the two-dimensional distributed refractive index lens, which converges projection light from the projection of the optical waveguide array in its scanning direction, to the projection part of the optical waveguide array which is equipped with plural specific optical waveguides. CONSTITUTION:The optical waveguide array 1 is formed on a substrate 8 and a core layer 2 which has a refractive index distribution is sandwiched between two clad layers 4 and 5 which have low refractive indexes. Further, the two-dimensional distributed refractive index lens 23 is mounted on a substrate 24 along the projection surface 7 of the optical waveguide array 1 and arranged so that the optical axes of the respective optical waveguides of the optical waveguide array 1 are coincident in height and center. This two-dimensional distributed refractive index lens 23 is so structured that the core layer 27 which has the clad index distribution is sandwiched between the low-refractive-index clad layers 25 and 26. Then a light signal which is made incident from the incidence part of the optical waveguide array 1 is propagated in the optical waveguide part and projected from the projection part 7 and the light signal projected from the projection part 7 is converged by the two-dimensional distributed refractive index lens 23 in its scanning direction. Consequently, an inexpensive device is obtained.
Patent JP-H10341523-A (JP)
Title: Digital protective relay
Inventor: FUJII MASAHIKO
IPC: H02H3/02
Filed: 1997-06-10
Abstract: PROBLEM TO BE SOLVED: To indicate all the indication signals without removing a front cover, by indicating specified plural indication signals cyclically when an indication switching means is set in automatic position, and indicating a designated specified indication signal when it is set in manual position. SOLUTION: In case that the contents of an indication changeover switch 4 are automatic, this digital protective relay indicates the indication value stored in an indication content memory when it comes to indication switching time, and this decides to indicate a signal over again cyclically in the order of indication signal 1indication signal 4 to be indicated next, and stores it and updates it. Next, in case of manual, this indicates the value of the indication signal 1 on the indicator 3 in case that for example, the indication signal 1 is set.  These specified indication signal 1-indication signal 4 indicate, taking the case of a ground directional relay, the measured values such that the indication signal 1 is the present zero-phase current value, that the indication signal 2 is the maximum value of the zero-phase current, that the indication signal 3 is the present zero-phase voltage value, and that the indication signal 4 is the maximum value of the zero-phase voltage.
Patent JP-H023294-A (JP)
Title: Pulsed discharge device
Inventor: OKAMURA KATSUYA
IPC: H01S3/097
Filed: 1988-06-20
Abstract: PURPOSE:To realize stable operation with a cheap and simple circuit by closing an auxiliary switch at the time of OFF of a high speed switch so as to perform resonance charge from the DC power source to a capacitor through leakage inductance of an output transformer, and closing the high speed switch at the time of OFF of the auxiliary switch so as to perform pulse discharge. CONSTITUTION:The primary windings 31 and 32 of an output transformer 3 and auxiliary switches SW1 and SW2 are so connected as to be reverse parallel to the output of a DC power source 1. The secondary windings 33 and 34 of the output transformer 3 are connected serially inside of it, and three points in all of its connection point and other two ends are drawn out to the outside, and a capacitor C1 is charged by diodes D1 and D2. When the auxiliary switches SW1 and SW2 are actuated alternately, positive or negative voltage is applied alternately to the primary winding, and according to that, the diodes D1 and D2 are made conductive, and the capacitor C1 is resonated and charged through leakage impedance between the primary winding 31 and the secondary windings 33, and when a high speed switch 10 is closed, the charge of C1 is discharged and flows to a laser circuit 2. Hereby, it can completely prevent the insulation recovery of the high speed switch 10 from becoming unstable.
Patent JP-S5488760-A (JP)
Title: Oscillation circuit
Inventor: OONISHI MASAMI
IPC: H03K3/02
Filed: 1977-12-16
Abstract: PURPOSE: To reduce the frequency variation due to temperature, by cancelling the temperature variation of transistor with the temperature variation of opposite polarity transistor.  
     CONSTITUTION: At the mement when the power supply Vcc is applied, the potential V2 of the time constant circuit consisting of the capacitor 13 and the resistor 14 is zero, and the potential V1 at the junction of the resistors 6, 7 is the voltage division VL of the voltage V ref  of the reference voltage 16. Since V1>V2, the output of the voltage comparator 2 is "1", turning on the analog switch 4. Thus, transistors TR9 to 11 are turned on, and when V2 is higher than the synthesis voltage VH between the emitter potential of TR9 and the reference voltage V ref , the output of the voltage comparator 2 is "0", and switch 4 and TR9 to 11 are opened resulting in V1=VL. On the other hand, when V2<VL, again the state is charging state. Charging and discharge is repeated within the range of VH and VL and the oscillation output is picked up from the terminal 17. In this case, the temperature variation of the emitter potential of TR9 to 11 can be cancelled with TR5 of opposite polarity. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H094732-A (JP)
Title: High temperature gate valve
Inventor: BABE TOMOKI
IPC: F16K3/12
Filed: 1995-06-20
Abstract: PURPOSE: To sufficiently absorb the dimensional change of a valve box by making up the valve box of an outer cylinder and an inner cylinder that is loosedly fitted to the outer cylinder for forming a valve box flow passage, by insertedly fitting a ring-shaped elastic body to be connected to the inner circumferential part of the outer cylinder and to the outer circumferential part of the inner cylinder, between the outer cylinder and the inner cylinder, and by providing sealing materials between the outer cylinder and the inner cylinder. CONSTITUTION: When a high-temperature fluid flows through a valve-box flow passage 3, even if a thermal expansion or contraction difference is caused between the inner cylinder 4 and the outer cylinder 2 due to the change in the fluid temperature and heat transfer coefficient, or a thermal expansion difference is caused between the upstream side and the downstream side of the inner cylinder 4 or the outer cylinder 5, a spring 11 is deformed to absorb these thermal expansion or contraction differences, so that excessive strain can be prevented from being produced in the valve box 1.  Further, since the heat transfer coefficient of a first packing 13 is low, the heat in the inner cylinder 4 is hardly transferred to the spring 11, and further, since the heat transfer coefficient of a second packing 15 is high, the heat in the spring 11 is escaped to the outer cylinder 2 through the second packing 15. In addition, first and second heat insulating materials are filled between the outer cylinder 2 and the inner cylinder 4, so that the temperature of the outer cylinder 2 is lowered as compared with that of the inner cylinder 4.
Patent JP-H10339627-A (JP)
Title: Measuring device
Inventor: SUZUKI MIKIO
IPC: G01B3/20
Filed: 1997-06-10
Abstract: PROBLEM TO BE SOLVED: To provide a measuring device wherein, while absorbing part's work size error, a gap between a fixed side detecting element and a moving detecting element is assured to a constant value and hard to be affected by contraction of bonding layer. SOLUTION: To a main body case supporting a spindle while movement is allowed, an electro-equipping substrate 32 comprising a fixed side detecting element 31 is fixed, while a scale holder 34 of synthetic resin is, through a guide 33, provided while movement is allowed in synchronous with the spindle, and a scale 36 comprising a moving side detecting element 35 is bonded to the scale holder 34 at several points. In short, a projection 51 is fixed to the rear surface of the scale 36 through a bonding layer, and housed in a housing hole 46 formed at the scale holder 34, bonded circumferentially through the bonding layer.
Patent JP-H10339189-A (JP)
Title: Engine control device of construction machine
Inventor: NAKAMURA KAZUNORI
IPC: F02D41/04
Filed: 1997-06-10
Abstract: PROBLEM TO BE SOLVED: To control a fuel injection rate with high accuracy by performing an operation on the load of a hydraulic pump on the basis of a detecting value of a condition quantity of the hydraulic pump, and controlling a fuel injection rate control actuator so that a fuel injection rate according to the load of the hydraulic pump and engine speed of an engine can be obtained. SOLUTION: Operation is performed on a fuel injection quantity by an engine controller 50 on the basis of output signals of an accelerator operation input part 356, an engine speed sensor 51 and a link position sensor 52, and a corresponding control current is outputted to a governor actuator 54. An engine speed deviation ΔN between target engine speed and detecting engine speed is found, and a position of a link mechanism 64 is adjusted to increase-decrease a fuel injection quantity according to this ΔN. A prestroke control command and a fuel injection timing command are also found from an engine speed signal, an engine load torque signal and an ignition timing advance signal from an ignition timing advance sensor 53, and a corresponding control current is outputted to a solenoid control valve 66 of a prestroke actuator 70 and a timer actuator 55.
Patent JP-S5484455-A (JP)
Title: Automatic gain control unit
Inventor: OOHASHI YOSHIMI
IPC: H03G3/30
Filed: 1977-12-17
Abstract: PURPOSE: To increase the range of the automatic voltage control by connecting the diode to the collector of the transistor for automatic volge control, supplying the voltage which varies according to the reception signals to the base of the Tr and then lowering the impedance of the amplifier via the Tr and the diode.  
     CONSTITUTION: Diode D 1  is connected in series to the collector of automatic voltage control transistor Q 2 ; the junction point of D 1  and input signal tuning circuit L 1  is connected to each high frequency and IF amplifier; and junction point P of D 1  and TrQ 2  is connected to the high frequency amplifier. At the same time, TrQ 2  and D 1  are connected to the circuit comprising resistance R 5  plus diode D 3  and D 4  which supply the bias voltage to each signal amplifier, and the voltage which changes according to the reception signal input voltage detected through detecting diode D 2  is applied to the base of TrQ 2 . Then TrQ 2  and diode D 1  are turned on at the reception signal input time to lower the impedance of the amplifier. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S635951-A (JP)
Title: Drop generator for ink jet and manufacture thereof
Inventor: SEKIYA TAKURO
IPC: B41J2/015
Filed: 1986-06-27
Abstract: PURPOSE:To enable the joint of a Ni nozzle plate to a head body by adhesives and to improve the joint strength and the reliability for a long term of the title drop generator, by a method wherein all the material or otherwise, at least the outer layer part of an orifice plate is composed of Ni and NiO is formed on at least the joint surface of the orifice plate to the head body. CONSTITUTION:The orifice plate 1 to be joined to the head body 3 introducing ink to the orifice part of the drop generator for an ink jet by adhesives 4 is provided. All the material, or otherwise at least the outer layer part of the orifice plate 1 is composed of Ni and NiO is formed on at least the joint surface of the orifice plate 1 to the head body 3. After forming NiO on the joint surface of the orifice plate 1 to the head body 3, the orifice plate 1 and the head body 3 are joined by adhesives 4. When the material to be adhered is Ni, the difficulty of its joint may be encountered because of the bad wetting of adhesives to Ni. In order to remove that, NiO (nickel oxide film) is formed on Ni.
Patent JP-S5776611-A (JP)
Title: State displaying method of process equipment
Inventor: AKAISHI MITSUTOSHI
IPC: G05B23/02
Filed: 1980-10-31
Abstract: PURPOSE:To judge the state of process equipment easily, by displaying the states of an operation command signal from a sequence controller and an operation signal from equipment to be controlled. CONSTITUTION:For example, a left red lamp 11L1 turns on by a command signal opening a valve, and a left green lamp 11L2 turns on by a command signal closing the valve; and a right red lamp 11R1 turns on by a signal indicating the open state of the valve, and a right green lamp 11R2 turns on by a signal indicating the closed state of the valve, thus indicating the opening and closure of the valve. Lighting by the command signals shows the expected operation states, and that by the signal indicating the states shows the operation states of each equipment. Therefore, whether process equipment is normal or abnormal is judged easily over a look at the display device consising of those four lamps.
Patent JP-H0811729-A (JP)
Title: Motor-driven power steering
Inventor: ONO NAOKUNI
IPC: B62D5/04
Filed: 1994-07-04
Abstract: PURPOSE:To prevent the destruction of a circuit caused by the connecting failure of gate wiring. CONSTITUTION:When a duty command is outputted from a control part 5 on the basis of a torque detection signal from a torque sensor 4, a motor driving current is outputted from a motor driver 6 on the basis of the duty command. The turning action of a tire 2 is supported by the turning force of a motor 7 through a transmission part 8 and turning mechanism 2a, and the current value outputted from the motor driver 6 is outputted to the control part 5 from a current detecting part 9. The control part 5 is provided with a circuit protecting means for diagnosing the connecting failure of the gate wiring 6c of the motor driver 6 when the current value outputted from the current detecting part is not confirmed in spite of the duty command being outputted from the control part, and stopping the duty command outputted from the control part 5.