baber/WOPTO huggingface dataset:
Patent JP-H11280437-A (JP)
Title: Variable valve system
Inventor: KANEDA YOJI
IPC: F01L13/00
Filed: 1998-03-30
Abstract: PROBLEM TO BE SOLVED: To provide a variable valve system which can set in a wide range the lift quantity of a valve element to a valve seat and also has satisfactory responsiveness. SOLUTION: This variable valve system is equipped with a first cylinder body 4, a first piston 5 arranged in a first cylinder hole 4a, a valve element 3b brought into contact with and separated from a valve seat 3a accompanied by the movement of a lifter 6, a valve driving cam 7 and the first cylinder body 4, a second cylinder body 8, a second piston 9 arranged in a second cylinder hole 8a, a control cam 10 and a communicating passage 17. An introducing amount of hydraulic fluid introduced to a first pressure chamber 15 is controlled, thereby distance between the abutting parts of the first piston 5 and lifter 6 can be controlled.
Patent JP-S58199162-A (JP)
Title: Ink droplet jet apparatus
Inventor: YASUDA MASASHI
IPC: B41J2/045
Filed: 1982-05-17
Abstract: PURPOSE:To obtain printing in a high resolving degree, by discharging an ink filling an air layer through a third orifice provided so as to be parted from a first and a second orifices when printing operation is not carried out to prevent the clogging of the orifices. CONSTITUTION:In a home position, a second orifice 6 is under a lid closed state by a lid body 7 and an air layer 5 is filled with an ink to prevent the clogging of a first orifice 4. In this state, the air layer 5 is communicated with an air pump and a solenoid valve 13 is opened to operate the air pump. By this operation, the ink filling the air layer 5 is discharged to the outside from a third orifice 12 pressurized by the air stream 14 shown by an arrow through the solenoid valve 13 under an open state. Because the third orifice 12 is provided so as to be parted from the first and the second orifices 4, 6, the air stream 14 added from the air pump is parallelly flowed along the wall surface of the first orifice and the flowing direction thereof is not abruptly altered even in the vicinity of the first orifice 4.
Patent JP-S59208888-A (JP)
Title: Compound semiconductor light emitting element
Inventor: YANASE TOMOO
IPC: H01S5/32
Filed: 1983-05-13
Abstract: PURPOSE:To enable to improve the luminous efficiency by a method wherein a layer whose P type impurity concentration is lower than that of a P type clad layer and forbidden band width is more than that of an active layer and less than that of said clad layer is provided between said clad layer and said active layer. CONSTITUTION:An N<-> layer should have an impurity concentration smaller than those of the N and P layers at approx. one-tenth. Besides, for example, a thin barrier layer 15 of the thickness of 200Angstrom  having a large forbidden band width and an N type small impurity concentration is sandwiched between the N type active layer 14 and the P type clad layer 16. Carriers are enclosed in the N type active layer 14, and the P type impurity causing a non light emitting recombination center is distant from the active layer 14. Therefore, the luminous efficiency of the active layer 14 is improved.
Patent JP-S63251377-A (JP)
Title: Vehicle for rough terrain running purpose
Inventor: YAMAGISHI MASATO
IPC: B62D11/08
Filed: 1987-04-04
Abstract: PURPOSE:To make it possible to reconstruct a four-wheel drive vehicle to a snowmobile easily by using the brake drums of the front and the rear wheels of an automobile as guide wheels of a crawler device. CONSTITUTION:Wheels are removed from brake drums 2 furnished at the axle ends of the front and the rear axles of an automobile respectively, steering devices are separated from the front axle, and the front axle is fixed in the straight running condition, to compose a vehicle main body 1. While a pair of the front and the rear guide wheels 5 are fixed to frames 4 of crawler sets 3 at the distance between axles same as the interaxle distance of the vehicle main body 1, plural rollers 6 are arranged at the lower side of the guide wheels 5, and crawlers are extended on the guide wheels 5 and the rollers 6. Flanges 9 are installed at the inner side of the guide wheels through shafts 8, and the flanges 9 are fixed to the outer side of the brake drums 2 with bolts.
Patent JP-S57201551-A (JP)
Title: Electrical dust precipitator
Inventor: TERAMURA NOBUO
IPC: B03C3/68
Filed: 1981-05-30
Abstract: PURPOSE: To make dust precipitation of high efficiency possible even with soot and dusts of about 10 11 W10 14 Ωcm specific resistances in the stage of flowing currents intermittently to a device operating on a DC high voltage controlled by an electric power control element such as thyristor by specifying electric charge time widths and charge rates.  
     CONSTITUTION: An intermittent control circuit 1 controls the phase of a thyristor 2 and is connected to either one of an automatic circuit 4 or a manual circuit 5 by a selection switch 3. A DC high voltage of variable pulse widths of about 0.01W1sec is applied to dust precipitating electrodes by using a commercial frequency or other power sources, whereby soot and dusts are precipitated thereon. Here, the charge time width T 1  is selected at about 20ms in the case of 50Hz and at 16ms in the case of 60Hz. At the same time, the charge rate T 1 / (T 1 +T 2 )(T 2  is a charge stop time) is selected respectively at ≤0.3, >0.2W<0.5, ≥0.3, in the case of ultra high-, middle high- and low high resistance dusts. Although there are differences in the degree of generation of the reverse ionization phenomena of dusts in accordance with their electric resistances, the timings for charging of the dust precipitating electrodes are optimized by this and the intended purpose is achieved. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S62241340-A (JP)
Title: Vacum drying processing
Inventor: KIZARA YUKIO
IPC: H01L21/304
Filed: 1986-04-11
Abstract: PURPOSE:To enable a drying process to be performed effectively without deterio rating or damaging a dried material, by heating the dried material, which is rotated at a low speed by means of a turn table, nearly at a normal temperature by using infrared heaters and then replenishing evaporation latent heat of water by its heating so that the drying process of the dried material is performed. CONSTITUTION:A carrier 13 inside a verger 10 is provided with a plural sheets of washed wafers X supported, and placed on a turn table 14 which is driven by rotation at a low speed of 30 rpm or so. And, infrared heaters 15 and 16 are installed up and down inside the verger 10. The upper one is of a suspension type inside the verger, and the lower one is of a mounting type on a base plate 12. The dried material is heated below 40 deg.C, nearly at a normal temperature, by the respective heaters 15 and 16 so that evaporation latent heat of water attached to the dried material is replenished. Thus, because water is sublimated under a vacuum atmosphere and water inside a slit is also vaporised effectively, the wafer is prevented form being deteriorated.
Patent JP-H09275224-A (JP)
Title: Photodiode
Inventor: ISHIBASHI TADAO
IPC: H01L31/10
Filed: 1996-04-05
Abstract: PROBLEM TO BE SOLVED: To ensure internal quantum efficiency and CR time constant and improve frequency response and saturation output, by placing a second semiconductor layer on a light absorption layer with a third semiconductor of low doping concentration, and determining the band gap energy of a forth semiconductor layer that is placed opposite the third semiconductor layer in contact with the light absorption layer. SOLUTION: A n-type InP electrode layer 22 is formed on a p-type InGaAs light absorption layer 21 with an undoped InP carrier travel layer 23 in-between. A p-type InGaAsP carrier block layer 24 in contact with the p-type InGaAs light absorption layer 21 is formed on the opposite side to the undoped InP carrier travel layer 23. The doping concentration of the InGaAs light absorption layer 21 is set to a specific value or above so that it will not be depleted in the biased state. The doping concentration of the InP carrier travel layer 23 is set to as small a value as possible so that it will be depleted. The band gap energy of the InGaAsP carrier block layer 24 is set to a value higher than that of the InGaAs light abortion layer 21.
Patent JP-H05285645-A (JP)
Title: Method for brazing aluminum material
Inventor: SHIODA SHUNTA
IPC: B23K1/19
Filed: 1992-04-06
Abstract: PURPOSE:To enable joining having high strength of mutual aluminum materials by interposing a brazing filler metal containing flux on the surface of the aluminum extruded material and executing the brazing to the other aluminum joining member. CONSTITUTION:The aluminum extruded material 1, whose surface is in the high temp. condition at about 500 deg.C just after extrusion from an extruding machine. By utilizing the heat of this extruded material 1 itself and also by using a locally heating means, such as a high frequency induction heating means, as well, the other aluminum joining member 2, such as a joint parts, is placed to execute the brazing at about 557-600 deg.C brazing temp. by heating the joining parts. At the time of executing the brazing, the Al-Si base brazing filler metal containing flux is used.
Patent JP-S62240574-A (JP)
Title: Correction sheet
Inventor: FUKUDA TSUGUHIRO
IPC: B41J29/367
Filed: 1986-04-11
Abstract: PURPOSE:To provide a correction sheet generating no blocking and strike- through while keeping adhesive capacity, by successively providing an adhesive layer and a heat and pressure-insensitive powder layer on a support. CONSTITUTION:A correction sheet 5 is obtained by successively providing an adhesive layer 2 and a heat and pressure-insensitive fine powder layer to a sheet like support 1 from the support side. As the support, a known film or paper can be used as it is and, as the adhesive layer, a heat and pressure- sensitive adhesive layer and, further, an adhesive layer showing adhesive property at ambient temp. under atmospheric pressure can be used. The heat and pressure-insensitive fine powder layer 3 is provided in order to prevent the blocking and strike through of the correction sheet and an inorg. fine powder showing no adhesive property even if receives pressure and not melted by the heating energy applied to a thermal head, for example, silicic acid, silicic anhydride, alumina, alumina hydrate, graphite, calcium carbonate, titanium oxide or molybdenum is pref. used.
Patent JP-H10283655-A (JP)
Title: Recording device
Inventor: OTA SHINJI
IPC: G11B7/125
Filed: 1997-04-02
Abstract: PROBLEM TO BE SOLVED: To maintain the ratio among the laser output power of each step constant and to improve the recording performance by beforehand noting the laser power/driving current characteristic an controlling the amount of current to obtain a desired laser output power ratio. SOLUTION: An inclination value K is held in a memory 41 as the laser power/driving current characteristic of a laser diode 1. A controller 40 sets a control voltage VCNT to a certain value and generates the output power of a first stage level PW1 from the diode 1 while setting an adding voltage V2=0. Then, in order to obtain the output power of a second stage level PW2 having a specific ratio M against the level PW1. A current I2, which is to be added to a current I1, is obtained by using the value K and the voltage V2 equivalent to the current I2 is set. Thus, a specific ratio M is maintained between the levels PW1 and PW2.
Patent JP-S57198653-A (JP)
Title: Semiconductor integrated circuit
Inventor: YAMASHITA KENJI
IPC: H01L21/8226
Filed: 1981-06-01
Abstract: PURPOSE:To contrive the stability of logic operation by a method wherein the first and the second constant current sources are provided by a grounded-base lateral type p-N-p element and a base is connected to the first constant current source and at least one piece of collector is connected to the second constant current source and an I<2>L is composed together with a grounded-emitter longitudinal type n-P-n. CONSTITUTION:A constant current source 4 composed of a grounded-base lateral type p-N-p element 5 is inserted between a power terminal 7 and the base of a grounded-emitter logitudinal type p-N-p element 5. The emitter of a lateral type p-N-p element 13 is connected to a teriminal 7 and the collector is connected to one collector of the element 5 and the base of an interface grounded- emitter n-P-n element. When the element 5 is on, Ic13=Ic5, and when the element 5 is off, Ic13=IB6 and an element 6 is turned on. Generally, Ic13 positively turns on the lement 6 when hFE5<<hFE6. Furthermore, as an I<2>L lateral type p-N-p can be used as the element 13, a very stable I<2>L is obtained. In this composition, the connection of the I<2>L and peripheral circuit can stably be executed and a variation in constant current is generated with mask dimension accuracy only. Therefore, very high-efficiency interface can be obtained.
Patent JP-H113069-A (JP)
Title: Integrated circuit and liquid crystal display device
Inventor: VORENKAMP PIETER
IPC: G09G3/36
Filed: 1998-03-30
Abstract: PROBLEM TO BE SOLVED: To enable to supply a signal coinciding with an input signal and generated simultaneously with a clock signal by connecting an output terminal of a first flip-flop to a data signal input terminal of a second flip-flop through a multiplexer. SOLUTION: A clock input terminal of a flip-flop 63 receives a clock signal 'c1k'. A clock input terminal of a flip-flop 65 receives the same clock after second inversion in an inverter 62. When a signal 'data' coincides with a signal 'c1k', the signal 'data' is synchronized with a falling edge of a clock signal in the flip-flop 63, a signal Q1 is given, and the signal Q1 is synchronized again with a rising edge of a clock signal in the flip-flop 65. When the signal 'data' does not coincide with the signal 'c1k', a signal d-ph of a special value is indicated, a multiplexer 64 selects a signal on an input terminal 'data', and the signal is synchronized again by the flip-flop 65.
Patent JP-H06303629-A (JP)
Title: Multiplex signal processing unit
Inventor: HAYASHI TAKAYA
IPC: H04N5/21
Filed: 1993-04-12
Abstract: PURPOSE:To provide the processing unit decoding a multiplex signal without any error by utilizing the quadrature modulation system of a video carrier in a band of an existing television broadcast standard so as to eliminate a nonlinear component of crosstalk invaded from a composite video signal into the multiplex signal. CONSTITUTION:A quadrature demodulation section 102 executes synchronization detection based on two orthogonal axes at a receiver side to separately demodulate a composite video signal and a multiplex signal. Low pass filters 103, 104 eliminate an undesired high frequency component in the composite video signal and an undesired high frequency component in the multiplex signal. A waveform equalization circuit 105 eliminates ghost and linear crosstalk. A delay circuit 107 delays the multiplex signal for a predetermined period, A nonlinear extraction section 108 extracts a nonlinear component of crosstalk from an output of the waveform equalization circuit. Moreover, a subtractor 109 subtracts a nonlinear component of crosstalk from a multiplex signal after waveform equalization. A threshold level setting circuit sets a threshold level. A binary conversion circuit converts the multiplex signal into binary data.
Patent JP-H04317188-A (JP)
Title: Bar code reader
Inventor: ICHINOHE TOSHIHIRO
IPC: G06K7/10
Filed: 1991-04-16
Abstract: PURPOSE:To reduce the number of parts and to simplify the setting operation by unnecessitating the setting of a function setting mode using a switch and to prevent erroneous setting and change of a function by discriminating between normal and function setting bar codes without fail in a bar code reader which performs decoding using a common decoder. CONSTITUTION:Whether or not each character, the number of digits, and the parity arrangement of the read bar code are the same as the UPC and EAN/ JAN is decided, and when it is decided the each character and the number of digits are the same as the UPC and EAN/JAN and the parity arrangement is different from the normal bar code, the read bar code is recognized as the function setting bar code and various kinds of function are set and changed based on the bar code.
Patent JP-H02262853-A (JP)
Title: Voltage detecting system for battery
Inventor: YAMAMOTO TOSHIAKI
IPC: H02J7/00
Filed: 1989-04-03
Abstract: PURPOSE:To prevent an alarm from being mis-sent due to noise, etc., by stopping the detecting action of output voltage performed prior to the start of charging when the operation of a charger begins. CONSTITUTION:When charging of a secondary battery 113 is begun, a 'READY' signal 2 stops the supervisory action of an output voltage supervisory means 115. Or, by detecting the output voltage of the secondary battery 113 at the time of power being applied on the basis of the power ON/OFF signal from a power unit 100 being placed above the means 115, if the voltage is normal, the NOT signal 1 of a signal 5 for applying power to a charger 111 stops the supervisory action of the means 115. When a signal 6 for stopping the operation of the charger 111 is outputted regularly from a supervisory control means 117 while in use, a signal 5 for reapplying power to the charger 111 is outputted again from the means 115. Accordingly, the NOT signal 1 of the signal 5 stops the supervisory action of the means 115. Accordingly, the malfunction of the secondary battery can be detected by the supervision only before power being applied to the charger 111.
Patent JP-S57199742-A (JP)
Title: Paper feeding device
Inventor: SHIBUYA KUNIHIRO
IPC: G03G15/00
Filed: 1981-06-03
Abstract: PURPOSE:To load a cassette reliably by moving a paper feed member in the direction apart from the cassette when loading or discharging the paper feeding cassette. CONSTITUTION:A paper feed device 33 is constituted with a paper feed roller 14B, a paper feed cassette 13, etc., and the first and the second guide plates 36, 37 are arranged on the fitting section 34 so as to form a conveyance passage 58 for the sheet P, then a coupling section 46 is formed on an oscillation arm 45 fitted beneath the guide plate 37 together with an elastic paper feed roller 14B so that the arm 45 is energized toward the cassette 13 side by a spring 59. When the main body 63 of the cassette 13 is inserted into the fitting section, it is guided along a guide member 50 until a pin 70 of the main body 63 gets into contact with the end face 50a so as to prevent it from being drawn out, and when the main body 63 further hits the coupling section 46, the roller 14B is rotated opposing the spring 59 and collide with the guide plate 37, therefore, it does not collide with the sheet P in the cassette 13.
Patent JP-S63251752-A (JP)
Title: Hot water and cold water mixing system
Inventor: KIMURA YASUO
IPC: E03C1/044
Filed: 1987-04-06
Abstract: PURPOSE:To enable a hot water and cold water mixing system to be remotely operated to facilitate operation and an effective utilization of a setting location by a method wherein each of driving devices for a temperature setting mechanism and an adjusting valve is used a better cell and a control device for controlling the operation of each of the driving devices is connected. CONSTITUTION:When 'ON' switch 63 of a hot water instruction unit 60 is depressed, a predetermined operation signal is sent from a control device to each of driving devices 25 and 35, a temperature setting mechanism for a mixing valve 2 is set to have a desired temperature and then a valve of the adjusting valve 3 is moved so as to provide a desired flow rate. Hot water and cold water of which flow rate is defined by the temperature setting mechanism flow into the mixing valve 2 and mixed to each other, flow out of an outlet 23 at a predetermined temperature and then enters into an inlet 31 of the adjusting valve 3. The mixed hot water is made to show a desired flow rate by the adjusting valve 3 and then supplied from the outlet port 32. For example, in case that it is desired to increase a temperature of hot water, a 'high' switch 62 is depressed and in case an amount of hot water is to be increased, a 'large amount' switch 61 is depressed, a signal is sent to a control device 5, the driving device 25 of a temperature setting mechanism for the mixing valve 2 and the driving mechanism 35 for the adjusting valve 3 so as to vary temperature and flow rate of the hot water.
Patent JP-S61244275-A (JP)
Title: Pwm control voltage type inverter
Inventor: KUROIWA AKIHIKO
IPC: H02M7/5395
Filed: 1985-04-22
Abstract: PURPOSE:To prevent the influence to an inverter output due to the variation in a DC input voltage by detecting the input voltage and amplitude-modulating a triangular wave for PWM-controlling in response to the detected voltage. CONSTITUTION:A single-phase AC power source 1 is rectified through a rectifier 2 and a smoothing condenser 3 to a DC voltage, which is applied to a single- phase inverter 4 to be converted to a sinusoidal AC of arbitrary frequency, and then supplied to a load 5. The inverter 4 forms a PWM signal by a comparator 9 through a PWM control carrier oscillator 6, a triangular wave generator 7, and a sinusoidal wave reference generator 8, and forms the ON/OFF signal of the inverter 4 through a logic circuit 10. In this case, a DC input voltage detector 11 is added, and input to a triangular wave generator 12 which can vary its slope as an amplitude modulation signal. Thus, when the DC input voltage is high, the ON pulse of the inverter 4 is reduced, while when low, the ON pulse is increased to eliminate the influence of the input voltage to the inverter output.
Patent JP-H04296239-A (JP)
Title: Turning shaft built-in vibration reducing means performance judging method and device in magnetic bearing
Inventor: OMORI HIDEKI
IPC: F16F15/02
Filed: 1991-03-26
Abstract: PURPOSE:To judge whether the performance of a vibration reducing means is proper or not as well as to perform a proper interchangeable against performance degrading in this reducing means by measuring the amplitude of vibration deflection in a tuning shaft and that of exciting vibration, and comparing a vibration reduced value, or the ratio of these values, with the setting value. CONSTITUTION:Each magnetic pole of both first and second radial magnetic bearings 4, 5 and an axial magnetic bearing 5 in a wheel head housing 1 is excited by output out of a magnetic bearing exciting circuit 34 of a controller 30. Then, a wheel spindle 2 is driven by output out of a motor drive circuit 31, grinding the internal surface of a workpiece W by a grinding wheel G. At this time, various displacements of the wheel spindle 2 are detected by each of position detectors 7-9 and a position detecting circuit 32, and a difference between the detected position and the desired position is operated by a processing circuit 33, while an exciting control signal is inputted into the magnetic bearing exciting circuit 34. In succession, a vibration reducing value is compared with the setting value by a vibration reducing effect judging circuit 39 of a vibration reducing judging circuit 35, through which performance of a vibration reducing means is judged.