baber/WOPTO huggingface dataset:
Patent JP-H062558-A (JP)
Title: Gas fuel engine
Inventor: TAKANO EIJI
IPC: F02B43/10
Filed: 1992-06-16
Abstract: PURPOSE:To enhance action of scavenging/cooling inside a combustion chamber, and promote scavenging/cooling while suppressing decrease in output particularly caused by a pumping loss or the like, so as to surely prevent preignition, in a gas fuel engine. CONSTITUTION:Operation of an engine is set in 6 strokes comprising intake/ exhaust strokes as the processes for scavenging/cooling adding to intake, compression, expansion, and exhaust, in a reciprocation type engine which has an intake port 6 which supplies air, a fuel supply port 8 which supplies gas fuel and an exhaust port, and also the fuel supply port 8 is opened in a compression stroke, while an intake valve closing timing in the intake stroke in the process of the exhaust gas cooling is set later than the intake valve closing timing during the intake stroke before the compression stroke.
Patent JP-S5488704-A (JP)
Title: Automatic gain control system
Inventor: TANAKA YASUHIRO
IPC: H04B10/293
Filed: 1977-12-26
Abstract: PURPOSE:To make broader the range of automatic gain control and to enable stable operation, by controlling the loop gain which controls the variable gain amplifying circuit with the gain under limit of the gain control loop of the variable gain photo detection circuit. CONSTITUTION:the reception signal is converted into electric signal with the avalanche photo diode APD11, amplification is made with the variable gain amplifier 12 and output is made to the identification circuit 15 and the peak detector 13. When the peak detection output is compared 17 and the voltage control circuit 16 determines the lower limit of the output voltage in advance. The output of the comparator 14 controls the circuit 16. The control loop in which the output voltage is the bias voltage of APD 11 and the control loop controlling the amplifier 12 with the output of the comparator 17 when the output of the comparator 14 is more than a given value, are automatically changed over, holding the reception output level at a constant value. Thus, the range of automatic gain control is made broader and stable operation can be performed.
Patent JP-2000345830-A (JP)
Title: Exhaust emission control device of internal combustion engine
Inventor: YONEKURA TOSHIAKI
IPC: F02D41/02
Filed: 1999-06-03
Abstract: PROBLEM TO BE SOLVED: To realize a more accurate grasping of a deterioration degree of a NOx catalyst. SOLUTION: In the device, it is presumed that a NOx occlusion amount of a NOx occlusion catalyst 18 becomes the maximum occlusion amount when a first NOx presumption amount presumed to be adsorbed to the NOx occlusion catalyst 18 exceeds a judgment level and a second NOx presumption amount is presumed from a time required for a variation of an output level of an air- fuel ratio sensor 22 when the air-fuel ratio of a flowing-in exhaust gas to the NOx occlusion catalyst 18 is changed from a lean to a rich. A deterioration of the NOx occlusion catalyst 18 is judged by comparing the first NOx presumption amount and the second NOx presumption amount.  When the time required for the variation of the output level of the airfuel ratio sensor 22, a rich degree is made small at the time of a rich operation and the time required for the variation of the output level of the air-fuel ratio sensor 22 is lengthened.
Patent JP-H0713373-A (JP)
Title: Electrophotographic photoreceptor
Inventor: HAI GENKO
IPC: G03G5/06
Filed: 1993-06-28
Abstract: PURPOSE:To provide an electrophotographic photoreceptor, which has high sensitivity and less residual potential and can be used repeatedly without any change in its characteristic, by providing a photosensitive layer containing the specific bis-azo compound on a conductive supporting body. CONSTITUTION:A photosensitive layer containing a bis-azo-compound expressed by a formula is provided on a conductive supporting body. In the formula, R1, R4 individually represent an alkyl group or an aryl group, R2, R5 individually represent a hydrogen atom, a cyano group, an amide group, an ester group, or an acyl group, and R3, R6 individually represent a hydrogen atom, an alkyl group, an alkoxyl group, a halogen group, a cyano group, or a nitro group. The following relations R1=R4, R2=R5, and R3=R6, are never formed at the same time. (A) represents an aromatic hydrocarbocyclic ring, which may have a substitutional group and may be bound directly or via a binding group, or a bivalent group of an aromatic heterocyclic ring. In this way, a change in sensitivity, a charging characteristic, and a residual potential is reduced when it is used repeatedly, so that high durability can be provided.
Patent JP-S6313057-A (JP)
Title: Developer for electrostatic development
Inventor: NOGUCHI KOJI
IPC: G03G9/09
Filed: 1986-07-04
Abstract: PURPOSE:To obtain an image having image quality which is stable with environmental conditions by incorporating a specific ratio of a carbon black and non- conductive black dye or black pigment as a coloring agent into a toner. CONSTITUTION:The toner to be used is the particles of 10-20mum average grain size formed by dispersing the coloring agent into a fixing resin. The generally used carbon black and the semiconductor or insulating black coloring agent are used for the coloring agent. Such coloring agent is exemplified by black dyes and black pigments such as metal-contg. azo dyes, nigrosine dye and aniline black. The satisfactory image density is not obtainable if the content of the carbon black is low and the decrease of the volumetric resistance of the toner by moisture absorption is resulted if the content is high. The content thereof is, therefore, specified in a 2-5wt% range. The satisfactory image density is not obtainable if the content of the other coloring agents is low and the flowability of the toner is low if the content is high; therefore, the content thereof is specified to a 1-10wt% range.
Patent JP-S643235-A (JP)
Title: Free piston engine
Inventor: NAKA KEISUKE
IPC: F02B71/02
Filed: 1987-06-24
Abstract: PURPOSE:To reduce the amount of an electric current to save consumption of electric power and to reduce the whole apparatus in size by providing an electric current control device adapted to control the supply of electric current to a linear motor portion by detecting the going motion and return motion of a movable element at the time of starting. CONSTITUTION:A free piston engine has a linear motor portion for starting and power generation. There are provided sensors 31, 32 for detecting the going motion and return motion of a movable element at the time of starting. An electric current control device comprising the sensors 31, 32, a flip-flop circuit and a delay circuit is adapted to supply electric current to a linear motor portion 15 and accumulate energy at every inversion in the movable element portion. Thus, the current supplied to the linear motor portion can be reduced to save the power consumption. Further, the whole apparatus of the free piston engine can be reduced in size.
Patent JP-H0450474-A (JP)
Title: Auxiliary air quantity controlling device for internal combustion engine
Inventor: HASHIMOTO HIROSHI
IPC: F02M69/32
Filed: 1990-06-18
Abstract: PURPOSE:To improve the temperature rise characteristics to a temperature rise at an engine at a thermal part and the responsiveness of an auxiliary air quantity control valve by installing an auxiliary air quantity control valve to an outer wall surface corresponding to a water jacket forming part of a cylinder head directly, and installing a thermal part to protrude into a water jacket. CONSTITUTION:An auxiliary air quantity control valve 32 is directly installed at an outer wall surface corresponding to a water jacket forming part of a cylinder head 1, and a thermal part 32a is installed to protrude into a water jacket 8. By thus installing the thermal part 32a of the auxiliary air quantity control valve 32 to face the inside of the water jacket 8 directly, the water temperature close to a combustion chamber can be detected directly, thereby the temperature rise characteristics to the temperature rise of engine cooling water at the thermal part 32a can be good, and the responsiveness of the auxiliary air quantity control valve 32 can be good.
Patent JP-H0450459-A (JP)
Title: Multistage opening and closing type negative pressure control valve for diesel power vehicle
Inventor: HIDA YUICHI
IPC: F02D9/02
Filed: 1990-06-18
Abstract: PURPOSE:To obtain a simple and cheap actuator by installing plural pairs of a nipple and a valve disc so that the length of interval between the nipple and the valve disc is different for each of the pairs, thereby changing stroke of the diaphragm of the actuator multi-stepwise. CONSTITUTION:In an actuator 6 for opening and closing a throttle valve multi- stepwise, rubber bodies 15, 16 are located to be opposed to nipples 13, 14 having negative pressure introducing passages 13a, 14a, and pressed against guides 19, 20 by springs 17, 18. By adjusting screws for fixing the nipples 13, 14 and the guides 13b, 14b, the distances S1, S2 are formed between the tips of the nipples 13, 14 and the rubber bodies 15, 16 respectively. Thus, stroke of a diaphragm 21 can be changed multi-stepwise, and thereby the throttle valve can be opened and closed multi-stepwise by the simple and inexpensive actuator 6.
Patent JP-H10327981-A (JP)
Title: Chair for pachinko game
Inventor: SUGIURA SAKATOSHI
IPC: A47C7/54
Filed: 1997-05-30
Abstract: PROBLEM TO BE SOLVED: To reduce fatigue of a player, and eliminate a stiff neck after playing pachinko games for a long time. SOLUTION: A shaft bearing is provided on one side of a lower part of a seat plate of a chair main body, a stay 9 is supported to be capable of inclining forward and back, and be stopped in a forward inclined attitude, and plural engagement holes 19a-19f are formed at a constant interval at an upper end part of the stay 9. A hand receiving base 10 is installed on an upper end part of the stay 9 to be slidable along the stay 9, an engagement metal fitting 23 of which claw tip 28 can be detachably engaged with the engagement hole 19a-19f is provided in the hand receiving base 10, and an operation button to move the engagement metal fitting 23 to release an engagement condition of the claw tip 28 is protruded in a part of the hand receiving base 10.
Patent JP-H085953-A (JP)
Title: Head mounted type display
Inventor: USUKI YOSHINAO
IPC: H04N5/64
Filed: 1994-07-08
Abstract: PURPOSE:To provide an HMD capable of surely fixing the head in a display device, fully improving mount feeling and maintaining a mounted state even when the head is moved furiously. CONSTITUTION:This display is provided with a front frame 12 provided with a display device 2 on a front surface and surrounding the front of the head, a back frame 14 surrounding the back of the head, a coupling device 30 coupling the frames 12 and 14 to freely move in a back-and-forth direction, belts 16A and 16B peripherally provided around the side of the head on the insides of the frames 12 and 14, a belt tightening device 20 tightening the belts 16A and 16B, and a releasing device releasing the tightening.
Patent JP-S5859617-A (JP)
Title: Surface acoustic wave element
Inventor: MIKOSHIBA NOBUO
IPC: H03H9/145
Filed: 1981-10-05
Abstract: PURPOSE:To easily form a piezoelectric film and, at the same time, improve characteristics at high frequencies of a titled element, by forming a substrate by installing an aluminium nitride single crytal eqitaxial layer on a silicon single crystal layer consisting of (001) crystal planes. CONSTITUTION:A silicon single crystal plate 1 is composed of a silicon crystal cut along crystal planes (001) or equivalent planes. An aluminium nitride (AlN) single crystal epitaxial layer 2 is formed on the silicon single crystal substrate 1 in such a way that the piezoelectric axis becomes perpendicular to the plane of the substrate 1. Then, comb-shaped elastic acoustic wave driving electrodes 3 and detecting electrodes 4 are formed on the layer 2. The phase speed Vp of the surface acoustic wave against the film pressure (h) of the layer 2 rises from about 5,083m/sec to about 5,600m/sec within 0-5.0 range of 2pih/lambda (lambda is the wavelength of the surface acoustic wave). The variation is one maintaining a  high phase speed and the dispersion to the film pressure is small.
Patent JP-H10335954-A (JP)
Title: Wide-band feedback amplifier
Inventor: ARA YOICHI
IPC: H03F1/34
Filed: 1997-05-30
Abstract: PROBLEM TO BE SOLVED: To correct phase deviations, even in a millimeter wave band and to form a feedback configuration in a wide band by providing a phase shifter of 180 deg. wide-band, which unites micro-strip lines and a slot line. SOLUTION: A micro-strip slot line converting part is formed by combining a slot line 8 which has a slot line release plane 5 and micro-strip lines 6 and 7 and is operated as a phase shifter that has 180 deg. phase characteristic of a wide band. A signal is inputted from a signal input end 2 of a micro-strip line 2' to an amplifier, amplified by an amplification element 1 and after that, is outputted to an output terminal. Although passing phase of the element 1 is close to 180 deg. in a millimeter wave band, the feedback amount of a part of it is adjusted with a resistance 11 for feedback amount decision, the phase is further shifted by 180 deg. by the phase shifter and it is feedbacked to the end 2.  Then, it is possible to perform negative fedback amplification of a wide band even in a millimeter wave band, and a distortion characteristic and the stability of an operation in the millimeter wave band are improved.
Patent JP-S5946158-A (JP)
Title: Apparatus for removing clogging
Inventor: KODAMA NAOTSUGU
IPC: B05B15/02
Filed: 1982-09-09
Abstract: PURPOSE:To sprinkle a chemical liquid in a mist form without clogging a mesh filter, by a method wherein dust or the like in the chemical liquid is collected by the exposed part of the mesh filter and the dust or the like adhered to the filter is washed off by water supplied through replacement with the chemical liquid. CONSTITUTION:A spraying nozzle 2 consists of a nozzle head 14 and a threaded cylinder part 16 and a cylindrical mesh filter 20 having a closed lower end is inserted into a liquid passing bore 17 while the lower part thereof is exposed out of a lower end of the threaded cylinder part 16 to be threaded with a liquid supply pipe. As mentioned above, dust, lumps or the like in a chemical liquid are collected by the filter and the dust or the like adhered to the filter is discharged to the outside by washing water replaced with the chemical liquid.
Patent JP-H0449204-A (JP)
Title: Use of wettable powder for control
Inventor: MAEHARA NOBUYOSHI
IPC: B05B7/14
Filed: 1990-06-18
Abstract: PURPOSE:To reduce a using amount of wettable powder and to improve controlling effects without raising humidity in a green house by transporting wettable powder to expel disease and insect pests of crops with wind in a powdery state as it is and scattering without dissolving and diluting the wettable powder with water. CONSTITUTION:An operator carries on his back a shoulder holding power applicator equipped with a tank charged with powdery controlling wettable powder, a blower and a spray heat capable of graphing by one hand of the operator stands at one end of a green house, holds a nozzle of the spray head toward the other end of the green house, scatters the wettable powder in air and drifts the wettable powder. Spraying time is 20-30 seconds per given lateral width in the case of a green house having 40m longitudinal length. When the lateral width is long, the spraying is carried out dividedly several times. The spraying time is shortened and weather has no restriction. Since the controller drifts and goes round, unevenness of scattering will not occur. Since the controller is dissolved in steam in air and drops, the controller will not drift long in air.
Patent JP-H07289485-A (JP)
Title: Wet electric cleaner
Inventor: ONO TAKASHI
IPC: A47L9/18
Filed: 1994-04-27
Abstract: PURPOSE:To provide a wet electric cleaner passing sucked air after contact through a bent air passage without using a rotary separator for separating moisture from sucked air after contact to reduce load from the aspect of a fan motor generating air sucking action and efficiently separating moisture in sucked air and dust failing to collect by contact to substantially prevent moisture and dust in sucked air from reaching the fan motor. CONSTITUTION:Sucked air containing dust emitted from an emitting orifice 14 through a suction port 13 to flow along the outer peripheral wall of a water pan 3 comes into contact with the dust collecting water 15 in the water storage part 12 of the water pan 3 and dust is collected. The sucked air after contact passes through the gap between cylindrical walls 8, 6, the upper end 11 of the cylindrical wall 6, the gap between cylindrical walls 6,7 and the lower end 21 of the cylindrical wall 7 (bent air passage) from the lower end 10 of the cylindrical wall 8 to be sucked by a fan motor 1 through a suction port 9.
Patent JP-S6216855-A (JP)
Title: Belt type continuous casting device
Inventor: KOSHIKAWA TAKAO
IPC: B22D11/16
Filed: 1985-07-17
Abstract: PURPOSE:To maintain the uniform tension of a movable belt in the transverse direction by providing a uniform tension reel to the movable belt, disposing displacement quantity detecting means to the bearing thereof and controlling a tension generating source in accordance with the values detected by said means. CONSTITUTION:The uniform tension roll 40 which rotates synchronously with a tension roll 16 is provided to a tension frame 30 and the spherical bearings 42 are disposed to the roll 40. Detecting ends 68, 70 of the displacement meters 64, 66 are disposed to the bearings 42 and the gauges 64, 66 are connected to calculators 72, 74. The bearings 42 of the roll 40 are moved by the change in the transverse tension of the movable belt 10 and the extent of the movement thereof is inputted via the gauges 64, 66 to the calculators 72, 74. The calculators 72, 74 calculate the tension at both ends of the belt 10 and control the power generated by cylinders 76, 44. The transverse tension of the belt 10 is made uniform by the above-mentioned method.
Patent JP-S6216850-A (JP)
Title: Continuous casting machine
Inventor: KOSHIKAWA TAKAO
IPC: B22D11/06
Filed: 1985-07-17
Abstract: PURPOSE:To prevent the leakage of a molten metal from the clearances of respective casting molds and to smooth and stabilize an operation by interposing molten metal sealants having elasticity and fire resistance between the ends of short side molds and long side molds. CONSTITUTION:Two belts (long side molds) 2, 2 are provided in a pair so as to face each other to a twin belt type continuous casting machine. Side dams (short side molds) 5 consisting of refractories are respectively provided between both ends thereof. The sealants 6 are interposed into the spaces between the opposed surfaces of the end faces of the side dams 5 and the belts 2. Grooves 30 are formed to the end faces of the side dams 5 and the sealants 6 are partly fitted into the grooves 30. Gas introducing holes 7 are formed to the side dams 5 and an inert high-pressure gas is supplied from the holes 7 toward the side dams 5 to cool the side dams and to pressurize the same to maintain the tight contact between the side dams 5 and the belts 2. The leakage of the molten metal from the clearances between the short side molds and the long side molds is thus prevented and the stable operation is executed.
Patent JP-H0321246-A (JP)
Title: Bath hot water circulating apparatus for bubble generating bath tub
Inventor: HARAGA HISATO
IPC: A47K3/00
Filed: 1989-06-19
Abstract: PURPOSE:To prevent the occurrence of an electric shock due to deterioration of insulation and leakage of high frequency component by disposing a motor portion of a bath hot water circulating apparatus and a pump portion separately, keeping an electrical insulating state, and connecting and interlocking an output shaft of the motor portion with impellers of the pump portion through an interlocking mechanism having electrical insulation. CONSTITUTION:A motor portion 21 of a bath hot water circulating apparatus 2 and a pump portion 22 are disposed separately, keeping an electrical insulating state, and an output shaft 27 of the motor portion 21 and upper and lower impellers 31, 32 of the pump portion 22 are connected and interlocked with each other by an interlocking mechanism R having electrical insulation, so that high frequency components are prevented from leaking in bath hot water. The pump portion 22 is installed in a low position on a support member 61 through an electric insulator 62 in put the pump portion 22 and the support member 51 in an electrical insulating state. The motor portion 21 is disposed above the pump portion 22 at a designated space therebetween, and the output shaft 27 of the motor portion 21 and the central shaft 34 of the pump portion 22 are connected through a coupling 60 as the interlocking mechanism R formed by raw material having electrical insulation. Thus, a bathing person is prevented from receiving an electrical shock due to a high frequency current flowing in the bath hot water.
Patent JP-S5860479-A (JP)
Title: Magnetic recording and reproducing device
Inventor: NAKANO KOUICHI
IPC: G11B27/30
Filed: 1981-10-02
Abstract: PURPOSE:To record consistent absolute time information on a tape to display the time information, and to confirm the position of the tape accurately, by presetting the counter of a recording system in response to a time signal from a reading means. CONSTITUTION:A recording system is equipped with a presettable counter 6 which counts a clock signal and generates a time signal, a shift register 6 which composes a one-word signal of the time signal and a discrimination signal, and a recording head 1 which records the one-word signal on a magnetic tape T, and a reproduction system, on the other hand, is equipped with a shift register 12 which reads and supplies the one-word signal recorded on the tape T to a latch circuit 14, and a panel 10 on which time is displayed on the basis of the time signal in the one-word signal. Then, the counter 6 is preset by the time signal from the latch circuit 14.
Patent JP-H06344913-A (JP)
Title: Distance detecting device
Inventor: TSUKAMOTO KAZUMA
IPC: B61L25/02
Filed: 1993-06-04
Abstract: PURPOSE:To transfer an on-ground element in a simple manner without changing the set distance information for the on-ground elements which are not transferred. CONSTITUTION:The absolute position information from a starting pint to each on-ground element 1a-1c is set at a point information setting part 6 installed on a communication controller 4, as the point information which is transmitted to a train 3 from each on-ground element 1a, 1b, 1c. A return information selecting part 7 selects the set absolute position information for each on-ground element 1a-1c and outputs the information. A distance calculation part 13 installed on a controller 2 on the vehicle calculates the relative distance between the on-ground elements on the basis of the absolute position information returned from the ground elements 1a-1c, and obtains the distance information.