baber/WOPTO huggingface dataset:
Patent JP-H11303761-A (JP)
Title: Variable displacement pump and control method thereof
Inventor: NAGANO TAKU
IPC: G05B11/36
Filed: 1998-04-17
Abstract: PROBLEM TO BE SOLVED: To control pressure and flow accurately steadily. SOLUTION: This variable displacement pump has a control means for the electrical closed-loop control of a hydraulic oil discharge pressure and a discharge flow thereof via a proportional solenoid valve, and the control means comprises a pressure control system 1 to control the discharge pressure, a flow control system 3 to control the discharge flow, a memory part to store the optimum setting values for a plurality of control constants that correspond to control states of the control systems 1, 3, a state detection means 15 to detect the control states thereof, an adaptation means S1 to adapt the control systems 1, 3 to the detection results, and setting means S2, S3, S4 to set the optimum setting values for a plurality of control constants that correspond to present control states thereof,  and the pressure control system 1 and the flow control system 3 are connected in series with each other.
Patent JP-S61281614-A (JP)
Title: Local oscillation circuit for am receiver
Inventor: TAKAHASHI TERUYUKI
IPC: H03J3/32
Filed: 1985-05-20
Abstract: PURPOSE:To decrease sufficiently the tracking error frequency over the entire frequency band by increasing the capacitance of the 1st padding capacitor connected across both ends of the oscillation coil more then the capacitance of the 2nd padding capacitor. CONSTITUTION:The 1st series circuit 12 comprised of the 1st padding capacitor 13 and the 1st varactor diode 14 and the 2nd series circuit comprised of the 2nd padding capacitor 16 and the 2nd varactor diode 17 are connected across the oscillation coil 11, a reception width adjusting capacitor is connected to the 1st padding capacitor 14, and the value of he 1st padding capacitor 13 to which a control signal is fed from a control input terminal to control the said 1st and 2nd varactor diodes 14, 17 is set to 600pF-1,500pF, and the value of the 2nd padding capacitor 16 is set to 50pF-250pF, then the tracking error frequency is kept within + or -2kHz.
Patent JP-H04337555-A (JP)
Title: Tape cassette loader
Inventor: TAMAI NORIHIKO
IPC: G11B15/675
Filed: 1991-05-14
Abstract: PURPOSE:To detect it by one switch that a tape cassette has come into a 1st and a 2nd position in a tape cassette loader capable of moving reversibly a cassette holder from the 1st position to the 2nd position with a motor. CONSTITUTION:The loader is constituted in such a way that a switch 8 for stopping the motor is driven by turning a 1st lever 4. When the cassette holder 1 has come into the said 1st position, the above 1st lever 4 is turned directly by this cassette holder 1, and when it has come into the 2nd position, a 2nd lever 6 is driven by a protrusion 15 provided on a pinion gear 2 for driving the cassette holder 1, and this rotation is transmitted via a spring 7 to the above 1st lever 4.
Patent JP-S5536135-A (JP)
Title: Agricultural tractor
Inventor: MURAYAMA YOSHINOBU
IPC: B60K17/08
Filed: 1978-08-31
Abstract: PURPOSE:To sharply improve productivity and reduce production cost, by having many parts and fabrication process, except a portion of the transmission mechanism, for common use, in manufacturing two kinds of tractors having different specifications. CONSTITUTION:Between a differential case 6 having a differential mechanism D built-in and a transmission case 5 having a gear-shift mechanism A built-in, a transmission case 14 is directly connected which has a gear-shift machanism B built- in which can generate the state of revolution having the deceleration ratio smaller than the minimum deceleration ratio due to the gear-shift mechanism A. Thus, a tractor having low-speed specification is constituted, in which all other parts except the gear-shift mechanism B and the transmission case 14 having the mechanism B built-in, are wholly constituted same to the tractors having usual common specification. Accordingly, in manufacturing the tractors having low-speed specification, many parts and fabrication process having common specification are used in common.
Patent JP-S61267480-A (JP)
Title: Clock generating circuit for digital television receiver
Inventor: MURATA TOSHINORI
IPC: H04N9/44
Filed: 1985-05-22
Abstract: PURPOSE:To generate a system reference clock which has a wide leading-in range with an integer-fold frequency of a color burst signal as the center and has stable frequency and phase, by using output signals from a frequency error detecting circuit and a phase deviation detecting circuit as control signals to control the frequency and the phase of the system reference clock. CONSTITUTION:In a system reference clock generating circuit 7, a sampling point as the reference of weighting is detected by a peak detecting circuit 8. A frequency error detecting circuit 9 and a phase deviation detecting circuit 10 operate several sampling points on a basis of the reference sampling point and detect an extent of frequency error and that of phase deviation respectively and output them. Signals outputted from these circuits 9 and 10 are added by an adder 11 and are converted to an analog value by a D/A converter 13, and this value is inputted as a frequency and phase control signal to a voltage control oscillator 15 by a low pass filter and amplifying circuit 14. Thus, a system reference clock 16 whose frequency is controlled to an integer-fold value of the color burst signal is generated from the voltage control oscillator 15.
Patent JP-2000304202-A (JP)
Title: Method and structure damping vibration of boiler body
Inventor: OWA YASUYUKI
IPC: F16F15/02
Filed: 1999-04-15
Abstract: PROBLEM TO BE SOLVED: To protect the pressure resistant section of a boiler body against earthquake by reducing the base share of the boiler body and reaction of a damper. SOLUTION: In the damping structure for a boiler where horizontal vibration of a boiler body 1 suspended from a boiler supporting steel frame 2 is transmitted to the boiler supporting steel frame 2 through dampers 6 arranged at respective heights between the boiler body and the supporting steel frame, lower section of the supporting steel frame is rendered to have flexible structure by fixing dampers 7 between the supporting steel frames in the layer lower than the damper 6 at the lowermost stage thus reducing seismic energy being transmitted to the upper layer boiler body. The supporting steel frame 2 comprises columns 3, beams 4 and braces 5 and the damper 7 is a damping structure of boiler disposed between the column 3 and the brace 5.
Patent JP-H09272455-A (JP)
Title: Rear wheel steering device
Inventor: INABA SUSUMU
IPC: B62D7/14
Filed: 1996-04-04
Abstract: PROBLEM TO BE SOLVED: To provide a rear wheel steering device which can set a yaw rate coefficient, simply in accordance with a vehicle speed, and optimumly for a vehicle. SOLUTION: A control means carries out a program comprising: steps 101, 102 reading a yaw rate ω and a vehicle speed V, a step of reading a yaw rate coefficient in accordance with the vehicle speed, and steps 104 to 106 of calculating a desired steering angle KγF from the product of the yaw rate coefficient Kr and the yaw rate ω, and steering the rear wheels to this desired steering angle KγF. Further, this yaw rate coefficient Kr is determined in such a way that a lateral acceleration (a) which can steer the rear wheel at a maximum steering angle γMAX during steady state circular tuning, and then, the lateral acceleration (a) is replaced into the yaw rate Ω.
Patent JP-H0746910-A (JP)
Title: Apparatus for transplanting in transplanter
Inventor: SHIMIZU SHUICHI
IPC: A01C11/02
Filed: 1994-05-23
Abstract: PURPOSE:To surely deliver a seedling and prevent a transplanting posture of the seedling from deteriorating by arranging transplanting pawls in a driving part for the transplanting pawls on the rear side in the forward direction of a transplanter and locating a guiding and dropping terminal end of a seedling take-over guide on a position for receiving the seedling in a transplanting locus. CONSTITUTION:This apparatus for transplanting in a transplanter is provided by installing transplanting pawls in a driving part 12 for the transplanting pawls capable of receiving a dropped seedling with the openable and closable transplanting pawls 11 and transplanting the seedling so as to locate on the rear side in the forward direction of the transplanter and locating the guiding and dropping terminal end of a conveyor belt 9 of a seedling take-over guide for taking over and guiding the seedling from a seedling feeder on a position for receiving the seedling in a transplanting locus of the transplanting pawls.
Patent JP-S59532-A (JP)
Title: Supercharger for four-cycle internal-combustion engine
Inventor: HASHIMOTO NOBUO
IPC: F02B75/02
Filed: 1983-06-16
Abstract: PURPOSE:To enable an efficient supercharging operation by a method wherein a clearance is formed within a sealed crankcase so as to communicate with the latter and a flexible section which responds to the fluctuation of the pressure in the cranckcase so that a sucked gas mixture is pressurized by the fluctuation of the pressure in the crankcase. CONSTITUTION:In the compression stroke, the pressure in a crank chamber 7 becomes negative due to the upward movement of a piston 11 and the fuel gas mixture from a carburettor is sucked into a supercharging chamber 14 through a one way valve 19. In the explosion stroke, the pessure in the crank chamber 7 becomes positive and the gas mixture is discharged into a downstream air intake passage 18 through a one way valve 20. In this case, an intake valve for establishing or interrupting communication between the pasage 18 and the combustion chamber is closed so that the gas mixture fills the passge 18. In the exhaust stroke, the gas mixture is sucked into the supercharging chamber 14 so as to be supercharged into the combustion chamber as the gas mixture for effecting two strokes of the engine, together with the gas mixture fed into the passage 18 during the combustion stroke.
Patent JP-S5333916-A (JP)
Title: Austenitic stainless steel with excellent intra- and intergranular stress corrosion cracking resistance
Inventor: ABE SEISABUROU
IPC: C22C38/00
Filed: 1976-09-10
Abstract: PURPOSE: To provide the title stainless steel by limiting the content of impurities such as P, Mo, etc. to prevent intragranular stress corrosion cracking and by limiting the content of C and stabilizing the C with Nb to prevent intergranular stress corrosion cracking. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S61265384-A (JP)
Title: Fan
Inventor: OTANI TOSHIO
IPC: F04D27/00
Filed: 1985-05-20
Abstract: PURPOSE:To improve reliability and use the small-sized and lightweight parts by accommodating a controller for a motor into an accommodating box in which a passage for the wind generated by the revolution of a fan is formed inside and effectively cooling a variety of control circuit parts which constitute a controller. CONSTITUTION:An accommodating box 31 is installed integrally through a guard 28 onto an installation plate 15, and four slit holes 33 are formed at the corresponding positions inside the accommodating box 31 in an installation plate part 29. A passage is formed for the wind which is introduced into the inside of the accmmodating box 33 by the revolution of a fan 24, passing through each slit hole 33, and flows into the fan 24, passing through the gap between the front surface wall of the installation plate 15 and the outer peripheral wall of the accommodating box 31. A controller 34 for a motor 19 is accommodated into the above-described accommodating box 31, and positioned in front of the slit hole 34, namely in the wind passage formed in the accommodating box 31. Therefore, a variety of control circuit parts which constitute the controller 34 can be effectively cooled, and reliability can be improved markedly, and the use of the parts having a relatively small capacity is permitted.
Patent JP-H08306612-A (JP)
Title: Pattern forming method and equipment
Inventor: SEKIGUCHI ATSUSHI
IPC: H01L21/027
Filed: 1995-05-02
Abstract: PURPOSE: To improve focal depth by obtaining the reflectivity of a part where a pattern is formed, changing the specific optical condition of an aligner on the basis of the reflectivity, making a pivotal point where the optical intensity is not changed by defocus coincide with the aimed line width. CONSTITUTION: A shift amount calculating means 24 and an optical condition determining means 25 are connected with a CPU 21. According to the command of the CPU 21, the shift amount calculating means 24 reads the optimum line width corresponding to a pivotal point, in a specific reflectivity, from the output signal of a calibration curve storing means 22, and calculates the shift amount by using the read optimum line width. The shift amount is calculated by deducting the optimum line width from the aimed line width. The optical condition determining means 25 reads the optimum numerical for moving the pivotal point by the read shift amount, from the output signal of a conversion line storing means 23, and determines the optical condition of an aligner.
Patent JP-H10303631-A (JP)
Title: Antenna system and radio communication equipment
Inventor: KANAYAMA YOSHITAKA
IPC: H04B1/38
Filed: 1997-04-25
Abstract: PROBLEM TO BE SOLVED: To allow the antenna system and radio communication equipment to conduct radio communication in an excellent state by avoiding an adverse effect due to fading with a simple configuration. SOLUTION: Since production of a steady-state dead point is avoided by providing a directivity variable means that changes a directivity of an antenna 10 timewise in the case of sending/receiving a radio wave E1, radio communication is conducted in an excellent state. Thus, the antenna system and radio communication equipment are realized, where adverse effect due to fading is avoided with a simple configuration and radio communication is conducted in an excellent state.
Patent JP-H0915132-A (JP)
Title: Method and apparatus for measuring concentration of solute
Inventor: NAKA TAKASHI
IPC: G01N9/00
Filed: 1996-04-30
Abstract: PROBLEM TO BE SOLVED: To measure the concentration of solute in a solution accurately by measuring the density of solution having unknown concentration and then calculating the concentration of solute in solution according to the correlation formula between the density and concentration of solution. SOLUTION: In a boron concentration measuring apparatus, measuring process is started after finishing a cleaning process and a deaeration process. A solution containing a boron compound is fed through an oscillation tube 9 which is then oscillated and the oscillation frequency is detected by a drive head 11 and delivered to an arithmetic controller 5. The arithmetic controller 5 determines the density of the solution containing boron from received detection signals according to a predetermined formula. Finally, the concentration of boron in the solution is calculated according to the correlation formula between the density and concentration of solution containing a boron compound.
Patent JP-S5633569-A (JP)
Title: Tracking receiver
Inventor: TANO KUNIO
IPC: G01S3/32
Filed: 1979-08-27
Abstract: PURPOSE:To detect even a low C/N stably by a method wherein input signals are demodulated to coherent and carrier waves are regenerated, the carrier waves are modulated again and modulated waves are generated, and antenna error signals are detected using the modulated waves as the reference signals. CONSTITUTION:The sum signals of angle error signals detected by means of an antenna enter a phase synchronous loop 3 through filters 1 and AGC amplifiers 2, and reference carrier waves are regenerated here. Synchronous AGC controlling voltage is also detected at the same time and the AGC amplifiers 2 are controlled, the voltage is inputted to a demodulator 4 and the signals are demodulated using the reference carrier waves as the reference, and modulated signals are detected. The signals form remodulated waves by means of remodulators 7 and the waves enter phase detectors 6, the waves are phase-detected with AZ error signals and EL error signals, and the antenna is driven. Thus, even the low C/N can stably be detected even to signals having no carrier wave component as the modulated signals.
Patent JP-S63277403-A (JP)
Title: Geographical spot detecting device for linear motor vehicle
Inventor: IKEDA HIROAKI
IPC: H02P25/06
Filed: 1987-05-06
Abstract: PURPOSE:To detect a geographical spot by a gap sensor attached to a mobile body, by engraving a groove on a reaction plate necessary for a linear motor. CONSTITUTION:A gap between a reaction plate 12 and a vehicle 1 is detected at all times by a gap sensor 11 in accordance with the movement of the vehicle 1. The gap is detected for a longer period of time by the depth (d) of a groove at a spot, whereat the gap sensor 11 passes above the groove 13, engraved on the reaction plate 12. A signal in accordance with the length of the gap in such a manner is impressed on a Schmitt circuit 16 through an amplifying circuit 15, provided in a receiver 5. Accordingly, a spot pulse 14 is outputted only when the vehicle passes the groove 13. According to this method, any apparatus on the ground becomes unnecessary.
Patent JP-S5735621-A (JP)
Title: Heat treatment installation for metal
Inventor: NAKAMURA KATSUROU
IPC: C21D1/74
Filed: 1980-08-08
Abstract: PURPOSE:To obtain heat-treated articles of high quality such as precision and sintered parts by continuously installing a hermetically sealable pretreating device and a heating device and making a heat treating agent suppliable to the heating device. CONSTITUTION:Treating articles 11 are transferred into a pretreating chamber 5, and a vacuum door 9 is closed, thence the inside of the chamber is evacuated to a high vacuum by a vacuum pump 16a. At the same time, the articles 11 are heated with a heater 4, to remove the stains of the articles 11. Next, a gas supply valve 17 is opened to supply gaseous nitrogen into the chamber 5. An intermediate door 7 is opened and the articles 11 in the chamber 5 are shifted into a heating chamber 2, after which the door 7 is reclosed. Thence, the articles 11 in the chamber 2 connecting to a heat treatment agent supplying device 21 are uniformly heated with a heater 1, whereby they are carburized and/or nitrided.
Patent JP-S5736429-A (JP)
Title: Deskew buffer device
Inventor: YAMAGUCHI SEIICHI
IPC: G11B20/20
Filed: 1980-08-08
Abstract: PURPOSE:To realize a stable operation of a deskew buffer device with a small number of elements, by securing no data state until the next resynchronous mark is detected with a pseudo clock in the dead track set mode. CONSTITUTION:A synchronism is secured for a clocl CLK1 through a flip-flop circuit 9, and the load clock is delivered to a first-in/first-out (FIFO) circuit 3 through an AND circuit 10. In addition to the data signal and the pointer signal, a mark detection signal is supplied in accordance with the first data position and in the form of an input that is made to pass through the FIFO device 3. When a dead track is set, data is sent out by a pseudo clock CLK4 through an AND circuit 13 and a multiplexer circuit 4 to prepare for the next resynchronism in case the data exists in the FIFO device 3.
Patent JP-H1036290-A (JP)
Title: Stabilizer for medical solid composition and stabilization thereof
Inventor: MAKINO TADASHI
IPC: A61K31/44
Filed: 1997-04-25
Abstract: PROBLEM TO BE SOLVED: To obtain a stabilizer for a medical solid composition that is composed of a benzimidazole compound and basic inorganic salt(s) of magnesium and/or calcium, and can physically stabilize and can physically stabilize the benzimidazole compound. SOLUTION: This stabilizer for a medical solid composition comprises (A) acid-unstable 2-[(2-pyridyl)methylsulfinyl]benzimazole or its derivative  except 2-[[3-methyl-4-(2,2,2-trifluoroethoxy)-2-pyridyl]methylsulfinyl]benzim idazole} which has anti-ulcerous action, and (B) basic inorganic salt(s) of magnesium and/or calcium, preferably heavy magnesium carbonate, magnesium carbonate, etc., in formulation ratio of component B to component A in the range of 0.3-20 pts.wt.
Patent JP-H11303746-A (JP)
Title: Motor-driven compressor
Inventor: YANASE SEIGO
IPC: H02K7/04
Filed: 1998-04-20
Abstract: PROBLEM TO BE SOLVED: To effectively prevent a leakage of magnetic flux from a permanent magnet by providing end plates made of a nonmagnetic material between balance weights and a permanent magnet, and forming caulking pins caulking the balance weights to at least one end of a rotor with a nonmagnetic material. SOLUTION: When this motor-driven compressor is operated, a crankshaft 5 is rotated as a rotor 4 is rotated, a piston 6 is reciprocated, and gas is compressed and discharged through a discharge pipe. A permanent magnet 7 is internally provided in the rotor 4, and balance weights 9 made of a ferromagnetic material are fitted to the rotor 4. The balance weights 9 are fixed to both ends of the rotor 4 by caulking pins 8 made of aluminum which is a nonmagnetic material. End plates 10 made of a nonmagnetic material are provided between the permanent magnet 7 and the balance weights 9 made of the ferromagnetic material, and a leakage of magnetic flux from the permanent magnet 7 is effectively prevented in cooperation with the caulking pins 8 made of the nonmagnetic material.
Patent JP-H048181-A (JP)
Title: Electrostatic actuator
Inventor: EBI YUTAKA
IPC: H02N11/00
Filed: 1990-04-25
Abstract: PURPOSE:To facilitate low voltage driving and to obtain a simple and inexpensive driving voltage applying means by employing a ferroelectric mover and making it movable through repetition of repulsion and attraction between oppositing electrodes. CONSTITUTION:Polarized ferroelectric element 1 is arranged movably to the right and left and a base 2 is secured oppositely thereto. Aluminum electrodes 3 of same number as the polarization of the ferroelectric element 1 are formed, in stripe, on the base 2 and covered with an insulator 4. A voltage applying means for generating repulsion and attraction alternately is also provided. In other words, the ferroelectric element 1 is employed as a mover and moved through repetition of electrostatic repulsion and attraction. Consequently, low voltage driving is realized through a simple and inexpensive driving means.
Patent JP-S58225399-A (JP)
Inventor: YAMAMOTO KEIZOU
IPC: G21C19/02
Filed: 1982-06-24
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-H06321643-A (JP)
Title: Sintering method of ceramic product
Inventor: KUWAYAMA KENTA
IPC: C04B35/64
Filed: 1993-05-11
Abstract: PURPOSE:To prevent cracks by sintering a ceramic material in a floating state or dipped state in a metal or alloy bath having specified specific gravity, higher boiling point than the sintering temp. of the ceramic compacted body, and lower melting point than the sintering temp. of the ceramic compacted body. CONSTITUTION:A ceramic compacted body 3 of a specified shape containing at least one kind selected from among oxide, carbide or nitride of Al, Si, Mg, Ti, Zr, W, V or Y such as Al2O3 is calcined. Then, a chamber 1 is filled with at least one kind selected from alloy of Ga, In, Sn, Pb, Tl, Bi, or Al having higher boiling point than the sintering temp. of the ceramic compacted body 3 and lower melting point than the sintering temp. The ceramic compacted body 3 is dipped in the metal or alloy bath 2 having specific gravity lower than the compacted body or lower than twice of the compacted body 3 so that half or more of the compacted body 3 sinks in the bath but a part of the body is out of the bath. The bath 2 is heated up to specified temp. while the compacted body 3 does not deform by its weight, and the body is sintered to obtain a ceramic sintered body without cracks.