baber/WOPTO huggingface dataset:
Patent JP-S59216306-A (JP)
Title: Amplifier circuit
Inventor: MATSUI KAZUMASA
IPC: H03F3/34
Filed: 1983-05-25
Abstract: PURPOSE:To reduce the variation of gain by using a feedback circuit passing a source follower from the output terminal of a one-stage differential amplifier to perform the feedback to the negative-polarity input terminal of the one-stage differential amplifier and using the gain reduction due to the source follower to reduce the feedback quantity. CONSTITUTION:When mutual conductances of transistors (TR) 2 and 4 are set equally to GM4 and output conductances of TRs 4, 7, and 9 are denoted as G4, G7, and G9 respectively, deviation (reduction) DELTAG1 of the gain of an amplifier circuit 11 from 1 is expressed with formula DELTAG1=(G4+G7+G9)/GM4. Meanwhile deviation DELTAGF of the gain of a source follower 20, namely, the gain from an output terminal 3 to the gate of the TR4 from 1 is expressed with formula DELTAGF=(GE+GC)/GMF where the mutual conductance of the TR 20 is denoted as GMF and output conductances of TRs 20 and 27 are denoted as GE and GC. Consequently, DELTAGF=DELTAG1 is necessary for the purpose of compensating deviation of the gain of the amplifier circuit 11 from 1 with reduction of the feedback quantity due to the source follower. Therefore, gate lengths of TRs 7, 9, and 27 are extended, and gate lengths and operating current densities of TRs 4 and 20 are equalized.
Patent JP-H10285919-A (JP)
Title: Power converter
Inventor: KOBAYASHI KAZUO
IPC: H02M7/12
Filed: 1997-04-09
Abstract: PROBLEM TO BE SOLVED: To improve the power factor of a power converter, by providing the power converter with a voltage converting section which takes in pulsating power accumulated in a power accumulating section and then converts it into the power of a desired voltage, and providing a current transformer which supplies current to a charging line of the power accumulating section according to the power taken into the voltage converting section. SOLUTION: The supplement of charge to a capacitor C1 for smoothing by a current transformer 20A is conducted synchronously with the voltage conversion (a high frequency switching operation of a switch SW) by a switching regulator (a voltage converting section) 30. In the voltage conversion by the switching regulator 30, when smoothed voltage Vs is intermittently applied to a primary coil L31 of a transformer 31, discharge current from the capacitor C1 for smoothing is intermittently caused to flow in a series circuit (a discharge line) formed by a primary coil L21 of the current transformer 20A, the primary coil L31 of the transformer 31, and the switch SW. As a result, induced current allowed to flow in a secondary coil L22 is increased.
Patent JP-H09277057-A (JP)
Title: Cladding welding equipment
Inventor: SHIDA TOSHIMITSU
IPC: B23K37/00
Filed: 1996-04-12
Abstract: PROBLEM TO BE SOLVED: To execute cladding by welding in good quality by arranging an air passage, which opens to the abutting face of an expanding part of work, in a work receiving base and connecting the air passage to a negative pressure air source so as to reduce coolability of an umbrella part of work. SOLUTION: At an upper face center of a work receiving base 2 on which an umbrella part 4a of a work 4 is abutted, a bottomed pressure chamber 9 having the diameter smaller than the outer diameter of the lower end of umbrella part 4a by a prescribed dimension is formed. The pressure chamber 9 is connected to a negative pressure air source 11. When a cladding by welding 8 is executed to an annular groove 4b of work 4, the pressure chamber 9 is evacuated. When clearance is caused at the contact face between the work 4 and work receiving base 2, outside air is flown into the pressure chamber 9 through the clearance. Thus, by this air, a non-contact part with the work receiving base 2 at the umbrella part 4a is cooled, the erosion at a margin part 4c, etc., is prevented.
Patent JP-S59215677-A (JP)
Title: Enclosed lead storage battery
Inventor: AOYANAGI TOSHISUE
IPC: H01M10/12
Filed: 1983-05-24
Abstract: PURPOSE:To prevent the short-circuit due to the extension of a positive electrode plate by forming the lower section of the positive electrode plate shorter than the lower skirt section of an adjoining and facing negative electrode plate so that the extension of the positive electrode plate is absorbed by a gap section formed there. CONSTITUTION:An electrode plate group laminated with a negative electrode plate 2, a retainer 3, and a positive electrode plate 4 in turn is stored in a battery jar 5 with a bottom saddle 6 at the jar bottom. The lower end section of the positive electrode plate 4 is formed shorter than the lower end section of the negative electrode plate 2 by a size difference of H, and a gap section 7 is formed on the bottom saddle 6. Accordingly, the pressure of inflation and extension of the positive electrode plate 4 while a lead storage battery is in use is absorbed and dissipated by the gap section 7 below the positive electrode plate 4, thus preventing the contact and short-circuit of the positive electrode plate 4 with the negative electrode plate 2 due to its extension and the seal breakage of the upper section and cover of the battery jar 5 due to the extension transmitted to a pole column 9.
Patent JP-H04321982-A (JP)
Title: Method for controlling magnetic disk device
Inventor: ARAI TAKESHI
IPC: G11B21/10
Filed: 1991-04-23
Abstract: PURPOSE:To eliminate the generation of overshooting or undershooting and to shorten settling time by preliminarily measuring and, based on the stored offsetting among heads, setting the switching timing. CONSTITUTION:The offsetting among the heads, which is measured and stored for each data head 4, is read out by a microprocessor 9 at the start of seek. And, on one track before a target track and succeeding tracks, when the output value (v) of a servo face position signal 3a from an A/D converter 10 becomes a prescribed value, a switching from a seek action to a following action is performed by means of a changeover switch SW. Consequently, without the generation of the overshooting, etc., a stable switching is performed in the shortest settling time.
Patent JP-S5215001-A (JP)
Title: Wheel supporting a lead at an offset
Inventor: SUGIMOTO SABUROU
IPC: B62B1/00
Filed: 1975-07-24
Abstract: PURPOSE: In a handcart, load is applied offset or rear position from wheel center, to reduce driving power. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H0640535-A (JP)
Title: Conveyor belt and manufacture thereof
Inventor: MURAOKA TOMONORI
IPC: B65G15/34
Filed: 1992-04-10
Abstract: PURPOSE:To provide a conveyor belt provided with a contour material so that the support fabric of the conveyor belt is not exposed at the cut edge of the conveyor belt. CONSTITUTION:A thermoplastic cord-like contour material 5 serving as an edge protective material is welded to the cut edge 4 of a belt conveyor 1 provided with a support fabric 2 and at least one cover 3 made of a thermoplastic material. The cord-like contour material 5 has a melting point lower than that of the cover 3 made of the thermoplastic material.
Patent JP-S62248846-A (JP)
Title: Air-fuel ratio judging device for electronically controlled fuel injection type internal combustion engine
Inventor: OKI HISATOMO
IPC: F02D41/34
Filed: 1986-04-22
Abstract: PURPOSE:To increase responsiveness by making a comparing reference value a slightly lower value than the maximum output value of an O2 sensor when the output of said O2 sensor is above a defined value, while making said comparing reference value a slightly higher value than the minimum output value of said O2 sensor when the output is below the defined value. CONSTITUTION:A basic injection quantity operating means 1 operates a basic injection quantity Tp based on intake air quantity Q and engine speed N, and an air-fuel ratio feedback correction factor setting means 2 sets a feedback correction factor alpha based on the deviation between the output value of an O2 sensor and a reference voltage from a reference voltage setting means 8. The output of the O2 sensor is inputted into a level judging means 6 and, when the output of the O2 sensor is, e.g., 450 mV or above, the level judging means 6 sets a reference voltage at 750 mV which is slightly lower than the maximum value of the output of the O2 sensor and, after 1 mS at which the output of the O2 sensor is lowered to 200 mV or below, the reference voltage is set at 200 mV which is slightly higher than the minimum value of the output of the O2 sensor.
Patent JP-S63255807-A (JP)
Title: Composite thin film magnetic head
Inventor: YOSHIDA SATOSHI
IPC: G11B5/48
Filed: 1987-04-14
Abstract: PURPOSE:To attain the recording and reproducing of an information signal except an image signal by forming the gap part of a magnetic head at the position away from the central line of a magnetic head in a track width direction. CONSTITUTION:The head is equipped with magnetic heads 10 and 20 for an image signal and a magnetic head 20 for a sound signal which forms the azimuth of an angle theta with the magnetic heads 10 and 20 for the image signal and adjoins with the magnetic heads 10 and 20 for the image signal in a track width Tw direction. Magnetic heads 10, 20 and 30 are thin film magnetic heads and respective heads slide and connect insulating layer gap parts 13a, 23a and 33a sandwiched by upper part magnetic layers 11, 21 and 31 and lower part magnetic layers 12, 22 and 32 to a flexible magnetic recording disk. Here the gap part 33a is formed at the position away from the central line of the magnetic head 30 for the sound signal in a track width direction. Thus, with a satisfactory head touch, the image signal and the sound signal can be recorded and reproduced.
Patent JP-S5518632-A (JP)
Title: Electrophotographic apparatus
Inventor: YAMAGUCHI TOMOYUKI
IPC: G03G15/01
Filed: 1978-07-28
Abstract: PURPOSE: To make possible providing of charging function and destaticizing function in combination and obtain the electrophotographic apparatus of the simple constitution by applying positive and opposite polarities to a corona discharger during the time of more than two turns of a photosensitive drum.  
     CONSTITUTION: Voltage by a corona discharge 2 is applied on a photoreceptor drum 1, thence the electrostatic latent images corresponding to the original 4 are formed. When the photosensitive drum having undergone transfer opposes to the discharger 2 in the second turn, the voltage of opposite polarity is applied to the discharge 2, whereby the charges of the drum surface are surely removed. Hance, the corona discharger 2 is able to provide charging function and destaticizing function selectively, resulting in less number to parts and simpler constitution of the copying apparatus. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H02268898-A (JP)
Title: Method for transporting treated water from anaerobic treating tank
Inventor: KAWASE MITSUO
IPC: C02F3/30
Filed: 1989-04-10
Abstract: PURPOSE:To transport treated water to an aeration tank without depositing a crystal in the transport pipe by specifying the Mg<2>. ion concn. in the treated water discharged from an anaerobic treating tank and contg. Mg<2>. ion and its pH and sending the treated water as such to the aeration tank as the post- treating stage. CONSTITUTION:Raw water is anaerobically treated in an anaerobic treating tank 1 to obtain treated water contg. Mg<2>. ion which is sent to an aeration tank 4 through a treated water transport passage. Since the transport passage is closed, the gaseous CO2 dissolved in the treated water is not stripped, and the treated water is held at <=pH7.5. Furthermore, dilution water is supplied through a dilution water supply pipe 7, as required, and the Mg<2>. ion concn. is kept at <=150ppm. As a result, the deposition of a crystal in the treated water transport passage is completely prevented.
Patent JP-S62247788-A (JP)
Title: Commutatoress motor
Inventor: NISHIKAWA TAKAHITO
IPC: H02P6/08
Filed: 1986-04-21
Abstract: PURPOSE:To enable a device to be operated in good order without monitoring the neutral potential of stator windings, by detecting the position of a rotor only through a voltage induced in the stator Windings, when current is not conducted to the stator windings. CONSTITUTION:In a state that current is not conducted to stator windings 7-12 by a electrical conduction control means 21, voltage induced to the stator windings 7-12 is detected by a position detecting means 20. The position detecting means 20 is composed of primary filters 14-16 attenuating switching noise and comparators 17-19. By the electrical conduction control means 21, the state of the output voltage of the comparators 17-19 is monitored, and after that, a switching element to be electrically conducted is determined, and a non-conductive time is counted, and the output of gate signal is generated according to the position of a rotor and is conducted to switching elements 1-6.
Patent JP-H07304310-A (JP)
Title: Tire and auxiliary tire
Inventor: OTA NOBUYUKI
IPC: B60C11/16
Filed: 1994-04-28
Abstract: PURPOSE:To provide a tire displaying a function as a normal tire and a spike tire as necessary. CONSTITUTION:This tire 1 is provided with a tire main body to be mounted on a wheel 2 and a side part tire part 4 integrally arranged on the side part of the tire main body. The side part tire part 4 is provided with a side part tread part 7 having a diameter same as that of a main body tread of the tire main body and formed with a pin hole 6 staggeredly located over a whole periphery, a side part air chamber 8 positioned on the side part of the air chamber 5 of the tire main body, and a displacement body 10 wherein a protruded pin 9 is protrudedly provided which is staggeredly located and arranged in the outer periphery of the side part air chamber 8 in the inside of the side part tread 7. Moreover, the tire 1 is provided with a slide belt body wherein a staggeredly located long hole arranged along the inner periphery of the side part tread 7 is provided over a whole periphery, and a sliding elastic body linked to the displacement body 10 and the slide belt body to slide the slide belt body by the displacement of the displacement body 10 in accordance with the increase/decrease of the air pressure in the side part air chamber 8.
Patent JP-H05267639-A (JP)
Title: Photodetector
IPC: H01L31/10
Filed: 1992-03-17
Abstract: PURPOSE:To enable a photodetector using a phototransistor to obtain a sufficiently high quantum efficiency, namely, a sufficiently high optical gain even when the thickness of its base layer, namely, light receiving layer is extremely small. CONSTITUTION:A resonator structure is formed by respectively forming Bragg reflectors 4 and 5 on the upper and lower surfaces of a heterojunction phototransistor formed by successively piling up an n-type A GaAs layer 1, p-type GaAs layer 2, and n-type A GaAs layer 3 so that the loop section of standing waves of light formed in the resonator by incident light can be positioned to the part of a base layer, namely, the layer 2 working as a light receiving layer.
Patent JP-S63258325-A (JP)
Title: Automatic sheet feeder
Inventor: MAENO MIKIHIKO
IPC: G03G15/00
Filed: 1987-04-16
Abstract: PURPOSE:To obtain an automatic sheet feeder having excellent operating performance and requiring reduced installation area with low cost by providing a releasable holding means for holding a detection lever in place corresponding to the position where a medium rear end face guide assembly is stopped. CONSTITUTION:A hopper 12 is drawn out from the body of an automatic sheet feeder, then a medium mounting board 17 in the hopper 12 is rotated in predetermined direction and lowered. At this time, a means 54 for holding a detection lever 46 in place is released. A medium is contained in the medium mounting board 17, then a medium rear end guide assembly 44 is matched with the size of the medium and moved. The assembly 44 is stopped at the position where it is matched with the size of the medium so as to position the medium. When the assembly 44 moves, the detection lever 46 engaged therewith also moves and held in place by means of an engaging means and a holding means 54. The detection lever 46 causes function of a detection means at that position so as to detect the size of the medium.
Patent JP-H06222035-A (JP)
Title: Detecting region carrying tape, detecting element, detector and detecting system
Inventor: SAKAI HARUTOSHI
IPC: G01N27/327
Filed: 1993-03-26
Abstract: PURPOSE:To provide a detecting region carrying tape, a detecting element, a detector and a detecting system. CONSTITUTION:The detecting region carrying tape 10 comprises a tape-like base 1 and a plurality of independent detecting regions 2 arranged thereon at an interval in the longitudinal direction wherein the detecting region 2 includes a porous reactant layer 3 carrying a biological catalyst, electrodes 4, 4', and joint terminals 5, 5'. The detecting element is an external reader jointing type containing a tape. The detector and the detecting system include detecting elements and a detecting region carrying tape. Since a pair electrode is provided on the disposable tape side and an electric signal is received on the repeatedly used device side, contamination is retarded while keeping high accuracy.
Patent JP-S59218341-A (JP)
Title: Aluminium alloy-made piston
Inventor: SUGIMOTO YUKIHIRO
IPC: F16J9/22
Filed: 1983-05-25
Abstract: PURPOSE:To ensure thermal conductivity, raise hardness at high temperature, and improve wear resistance and fatigue resistance by forming the outer interface of a porous metal body filled with an aluminium alloy by a compound layer of a porous metal body and aluminium in a ring support member for a ring groove of a piston ring. CONSTITUTION:A ring support member 6 forming a ring groove 3 for a piston ring of a piston 1 made of an aluminium alloy is formed by casting said member into a piston body 2 in a state where the pores of a porous metal body 8 comprising nickel series metal, copper series metal, and iron series metal, etc., are filled with an aluminium alloy 9 of a piston body 2. At this time, a compound layer 10 of the porous metal body 8 with metal is formed in a volume ratio ranging from 1 to 80%. Hereby, the ring support member is provided with a intermetallic compound layer excellent in hardness at higher temperature and heat resistance in high density on the surface layer and inner parts thereof. Thus, a heat resistant compound forms the skeleton of the ring support member, so that it is possible to improve fatigue resistance and wear resistance against respective load.
Patent JP-S5317740-A (JP)
Title: Roller fixing device
Inventor: HIGATANI TOSHIAKI
IPC: G03G15/20
Filed: 1976-08-02
Abstract: PURPOSE: To prevent the occurrence of wrinkles due to the thermal contraction of a recording paper by employing a fixing roller of an electrophotography resulting from working it in the shape of straight form easily manufactured, and forming it to a desired drum type due to the difference of thermal expansion between middle and end by a heater installed in it. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S63257819-A (JP)
Title: Keyboard having optional character array
Inventor: SATOU YURI
IPC: H03M11/14
Filed: 1987-04-15
Abstract: PURPOSE:To optionally select a character of function key array appropriate for application software to be used and to improve operatability in accordance with a user's level by using a self-emitting optical element material to be variably displayed. CONSTITUTION:A display panel 2a consisting of a self-emitting optical element material such as liquid crystal or electroluminescence is arranged on a data key or function key part on a keyboard 2. When a character or the like is inputted to an area or the like corresponding to a key head part on the panel 2a through a light pen or the like, a required character can be displayed and a character or function array appropriate for the application software to be used can be optionally obtained. Consequently, key operatability can be improved in accordance with the user's level.
Patent JP-S59218722-A (JP)
Title: Method for formation of film
Inventor: HIRAMOTO TATSUMI
IPC: H01L31/04
Filed: 1983-05-27
Abstract: PURPOSE:To enable to form a film at a very high speed without adverse influence of mercury by a method wherein discharge gas to be used for discharge of ultraviolet rays under a specific condition is generated in a photo-flashing form, and this flashing light is made to irradiate on photochemical reaction gas. CONSTITUTION:A substrate 7 consist of a glass plate. Silane gas is supplied from the first gas pipe 11, krypton gas is supplied from the second gas pipe 12 as discharge gas, an electrode 2 is constituted by tungsten, said gas is flashingly discharged satisfying the formula of Q/Vt>=10Joule/cm<3>.msec [discharge energy is Q(Joule)], and effective discharge cubic volume is brought to V(cm<3>) and current half-power width is brought to t(m sec). As a result, the substrate 7 is surrounded by the plasma of said discharge, and a-Si is deposited on the surface of the substrate, thereby enabling to form the a-Si film on the substrate 7 at a high film forming speed. Silane and disilane are selected as photochemical reaction gas. Besides, when a small quantity of hydrogen phosphide or boron hydride or hydrogen arsenic is mixed, an a-Si film whereon boron, phosphorus or arsenic is doped can be obtained.
Patent JP-2000281473-A (JP)
Title: Compost fermenting and treating apparatus
Inventor: INOUE SATOSHI
IPC: C05F3/06
Filed: 1999-03-31
Abstract: PROBLEM TO BE SOLVED: To provide a compost fermenting and treating apparatus for promoting aerobic fermentation and rapidly producing a high-quality compost without emitting a malodor. SOLUTION: In this compost fermenting and treating apparatus equipped with a ploughing apparatus 3 for transporting a compost raw material 2 upward and dropping it while moving from a compost outlet side 1b of a fermentation tank 1 to a compact raw material feed opening side 1a, a grinder 1 for grinding a falling compost raw material and scattering it is arranged at a compact raw material drop position of the ploughing apparatus. Preferably a malodor absorption apparatus for absorbing malodor air in the fermentation tank 1 from the lower side of the fermentation tank in a compost layer. More preferably, a sewage treating apparatus for absorbing excrement and sewage of domestic animal discharged from a barn from the lower side of the fermentation tank in the compost layer is installed.
Patent JP-H09282034-A (JP)
Title: Operation control method for unmanned carrier
Inventor: YAMAGUCHI TORU
IPC: G05D1/02
Filed: 1996-04-15
Abstract: PROBLEM TO BE SOLVED: To provide an unmanned carrier control system where regulations on an interface between an unmanned carrier and an operation control host system to be simple and general-purpose one which can correspond to various situations and security, efficiency and maintenance are high. SOLUTION: The unmanned vehicle 1 transmits a signal showing the state of the unmanned carrier 1 at a constant period in a communication range to a relay controller host system 8. The host system 8 executes the decision processing of a next operation and the transmission of an operation instruction to the unmanned carrier 1 whenever it receives the signal. The operation situation of the unmanned carrier 1 is judged by the signal showing the state of the unmanned carrier 1 and whether the decision processing of the next operation and the transmission of the operation indication are continuously to be executed or not is decided.