baber/WOPTO huggingface dataset:
Patent JP-S6046788-A (JP)
Title: Speed controller of dc motor
Inventor: NAKANO HIROMITSU
IPC: H02P7/288
Filed: 1983-08-20
Abstract: PURPOSE:To obtain a speed controller of a DC motor having less irregular rotation by feeding back a voltage between a DC motor and a resistance element for forming a low resistance side of a bridge circuit to a control transistor. CONSTITUTION:A bridge circuit is composed of a DC motor 1 and resistors 2, 3, 4, a comparator 20 compares a voltage between detecting terminals (a) and (b) with a reference voltage produced by dividing the output voltage of a constant voltage circuit 16 by a voltage divider having resistors 18, 19 are compared by a voltage divider having resistors 18, 19. A transistor 26 is controlled by the output of the comparator 20, thereby controlling a power supply control transistor 7. Further, the base voltage of the transistor 26 is applied to the base of a transistor 29, the voltage between the terminals of the resistor 2 is applied to the emitter of the transistor 29, and the collector of the transistor 29 is connected to the base of the transistor 7, thereby forming a current feedback loop.
Patent JP-S5275962-A (JP)
Title: Balance mixer circuit
Inventor: OGASAWARA KAZUO
IPC: H03D7/14
Filed: 1975-12-20
Abstract: PURPOSE: To improve efficiency as well as to facilitate mass production program by adding capacity in parallel to each mixer diode and by adjusting these capacity to correct impedance. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S6044972-A (JP)
Title: Sodium-sulfur battery
Inventor: KAGAWA HIROSHI
IPC: H01M10/39
Filed: 1983-08-19
Abstract: PURPOSE:To increase utilization ratio of anode active material and safety of a battery by impregnating sodium in metal fibers filled in a metal container, and filling metal fibers in a space between the container and a solid electrolyte due to form an anode chamber. CONSTITUTION:A hole B through which molten sodium passes is installed in a lower cover 13'' of a metal container 13 such as stainless steel container and metal fibers 19 which are resistant to molten sodium are filled in the container. Metal fibers 14 are filled in a space formed between the outer surface of the container 13 and solid electrolyte. A specified amount of molten sodium 6 is filled in the container from an anode pipe 8 by vacuum impregnation process, and after cooling, the pipe 8 is closed in a vacuum. This sodium-sulfur battery features easy supply of sodium and high safety.
Patent JP-S5941136-A (JP)
Title: Rotor for rotary electric machine
Inventor: SAWATANI KENJI
IPC: H02K3/24
Filed: 1982-08-30
Abstract: PURPOSE:To increase the cooling efficiency of a field coil by providing vent passages between a pole core and a field coil, and between the layers of the field coil and providing a partition member between the lower ends of the field coils. CONSTITUTION:A first vent passages 60 are provided between a field core 10 and a field coil 11, a second vent passages 70 are provided between the layers of the field coil 11, and a partition member 22 bridged between the lower ends of the field coil 11 is provided. The pressure of cooling air is enhanced by the member 22 to be flowed to the first passage 60, and the flowing velocity of the cooling air passed through the first and second passages 60, 70 can be accelerated. Further, the ventilating area of the cooling air to the coil 11 via the passage 70 can be remarkably increased.
Patent JP-H05339528-A (JP)
Title: Ink composition
Inventor: MATSUZAKI MAKOTO
IPC: C09D11/00
Filed: 1992-06-11
Abstract: PURPOSE:To obtain the title composition which ensures less load on a transfer system and is excellent not only in printing quality after transfer but also in wear and water resistances of recording images irrespective of the type of paper by employing a specific phthalic ester as a vehicle. CONSTITUTION:The title composition is used in a recording system in which ink is discharged from an ink jet recording head to an intermediate transfer medium at a temperature higher than room temperature, and in which the ink is transferred from the medium to testing paper. The composition comprises a vehicle and a colorant, in which at least one member selected from among o- and m-phthalic diesters each having a melting point of 50 deg.C or higher is used as the vehicle. Each of the diesters has a substituent containing at least a cyclohexyl or an aryl group. This composition ensures clear profile and excellent printing quality irrespective of the properties of paper, and a recorded image composed of records having excellent wear and water resistances can be obtained from the composition.
Patent JP-S5274805-A (JP)
Title: Operating of hydraulic rotary electric machine
Inventor: NISHIZAWA HIDEAKI
IPC: H02K9/18
Filed: 1975-12-19
Abstract: PURPOSE: To cool liquid is caused to be passed through a circulation circuit indludin including a bypass pipe provided except in the cooling section of a heavy electric machine and a heat exchanger while previously heated, the temperature of the cooling portion, whereby generation of dew is prevented in the machine at machine actuating time. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H053389-A (JP)
Title: Structure of potting case
Inventor: SEKI JIRO
IPC: B29C39/42
Filed: 1991-06-25
Abstract: PURPOSE:To pot a potting agent uniformly in a potting case at large, and reinforce the potting case. CONSTITUTION:This is a potting case 4 wherein a printed board 2 where electronic parts 1 are mounted is inserted and potted with a potting agent 3. Mutually parallel mounting pieces 6 and 7, which incline to the potting case respectively, are projected from both sides of the bottom 5 of the potting case 4. A rib 8 is projected from the bottom of the potting case 4. The lower end face of the rib 8 is positioned on the same level as or below the lower end of one mounting piece 6 being so projected as to incline outward half downward from one end of the potting case 4.
Patent JP-H01319763-A (JP)
Title: Copying device
Inventor: GUNJI KOICHI
IPC: G03G15/00
Filed: 1988-06-21
Abstract: PURPOSE:To prevent the contamination of a copied image after a copying device is used for a long time by automatically switching a copying density standard to a low density side when an automatic document feeder is loaded. CONSTITUTION:The automatic document feeder 20 can be loaded onto the title copying device, and is placed at a prescribed position therein after it document platen cover and a connection terminal 15 are removed. As a result, a document D is fed to a document placing table 14, and sent at the end of optical scanning. Then, a fresh document D is sent to the table 14. Simultaneously, the terminal 15 and the connection terminal 21 of the feeder 20 are connected, and a control part 10 switches a developing bias to switch the copying reference density to the low density side. Even if a belt 20, for instance, becomes dirty after the device has been used for a long time, the contamination of a copied image due to a decrease in reflectance behind the document D and irregularity never occurs.
Patent JP-H0693271-A (JP)
Title: Method and apparatus of fcc regeneration for reducing nox
Inventor: EIMOSU ANDORIYUU ABIDAN
IPC: B01J8/24
Filed: 1993-06-24
Abstract: PURPOSE: To provide a method and apparatus for reducing NOx emissions which permit the use of existing FCC regenerator.  
     CONSTITUTION: NOx emissions from an FCC regenerator are reduced by forcing the generator to operate between full and partial CO burn mode. By operating with less than 1 mole % O 2  and up to 1 or 2% CO, conditions are created under which the nitrogen compounds in coke on a spent catalyst are oxidized to NOx and at the same time NOx in the regenerator is converted to nitrogen. A downstream CO boiler can burn this low CO flue gas without producing large amounts of NOx. Most of NOx emissions are eliminated. Air: coke ratio in the regenerator is controlled by CO and O 2  analyzers monitoring regenerator flue gas. 
     COPYRIGHT: (C)1994,JPO
Patent JP-S6216990-A (JP)
Title: Bobbin support device in under-roll type winding machine
Inventor: UNNO HITOSHI
IPC: B65H54/553
Filed: 1985-07-11
Abstract: PURPOSE:To achieve smooth operation by arranging a first and a second speed controllers, each having a reverse check valve and a throttle passage in parallel, respectively between oil pressure plenum chambers of a first and a second oil-air pressure switching devices and upper and lower sides of a piston of a hydraulic cylinder. CONSTITUTION:When a valve 13 is moved to the left, air pressure acts on a second air-oil pressure switching device 9, pressure oil is sent via a reverse check valve 12a of a second speed controller 12 to the lower side of a piston 15 of a hydraulic cylinder 6 and pressure oil on the upper side of the piston is returned via a throttle passage 7b of a first speed controller 7 to a first air-oil pressure switching device 8. For lowering the piston 15, the valve 13 is moved to the right. When holding a bobbin 1 between a cylinder piston 5 and a pintle 2 and making the bobbin rotate by pressing it against an under-roll 4, the holding force is to be adjusted at a flow rate adjustment section 10b of a third speed controller 10. Thus, smooth operation can be achieved even in case of deformation of a bobbin.
Patent JP-S6046111-A (JP)
Title: Acoustic wave dispersing type delay line
Inventor: FUJITA YUUJI
IPC: H03H9/42
Filed: 1983-08-24
Abstract: PURPOSE:To reduce insertion loss and to obtain an effective frequency characteristic by installing reflecting lattices for reflecting acoustic waves having irregular repeating cycles to the surface of a piezoelectric substrate provided with comb-shaped encoding electrodes for input and output. CONSTITUTION:A comb-shaped electrode 10 for input, another comb-shaped electrode 11 for output, and repellers 4 and 5 are installed to the surface of a piezoelectric substrate 1. The electrodes 10 and 11 are encoding electrodes and the largest output appears when a pulse train corresponding to the electrode 10 is excited from the phase-encoded input electrode 10 and its propageting pusle train is completely superposed on that of the same phase-encoded output elecctrode 11. Reflecting lattices 4 and 5 are obliquely installed against the propagating direction with an angle of 45 deg. and their pitches are gradually changed. Therefore, an acoustic wave radiated from the electrode 10 is propagated inside the lattice 4 and, where the wavelength of the acoustic wave coincides with the double of the lattice interval of the reflecting lattice 4, the acoustic wave is reflected by the lattice 4 in a direction normal to the propagating direction. The acoustic wave reflected by the lattice 4 is again reflected by the other lattice 5 in the normal direction, and then, reaches the electrode 11.
Patent JP-H0319242-A (JP)
Title: Manufacture of semiconductor device
Inventor: AOKI HIROMITSU
IPC: H01L29/812
Filed: 1989-06-15
Abstract: PURPOSE:To form a recessed part having a base longer than an initial aperture part, and improve the backward breakdown strength of a gate, by performing two stage etching, anisotropic etching and isotropic etching, the aperture part of an N-type active layer. CONSTITUTION:A photosensitive resist thin film 3 is spread on an N-type active layer 2, and a gate pattern is formed by exposure and development; by using the thin film 3 having a gate pattern as a mask, the layer 2 is anisotropically etched, and an undercut-shaped aperture part is formed; by sequentially isotropically etching the aperture part of undercut, a recessed part is formed; a gate metal 4 is vapor-deposited on the whole surface on the recessed part of the layer and the thin film 3; the thin film 3 is dissolved with organic solvent, and metal 4 on the thin film 3 is exfoliated, thereby forming a Schottky gate only in the recessed part of the layer 2. Hence an aperture of undercut longer than the aperture part of the thin film 3 can be arbitrarily formed.
Patent JP-H07315827-A (JP)
Title: Method for purifying silicon and purifying device therefor
Inventor: HANAZAWA KAZUHIRO
IPC: C01B33/037
Filed: 1994-07-05
Abstract: PURPOSE:To readily produce silicon for a solar cell, containing phosphorus, aluminum and calcium in low concentrations, in a short time. CONSTITUTION:Plural water-cooled crucibles 1a, 1b and 1c are used and upper melt in molten silicon 22 in the crucibles is successively poured to the lower crucibles under reduced pressure. A wall of each crucible is cooled, silicon in the each crucible is irradiated with electron beams 11 and 13, impurities (phosphorus, aluminum and calcium) in the molten silicon are attached to the walls of the higher crucibles and remain in the higher crucible bottoms to successively reduce the impurities in the molten silicon.
Patent JP-H01320804-A (JP)
Title: Constant current circuit
Inventor: TAKAHASHI JUN
IPC: H03F1/30
Filed: 1988-06-22
Abstract: PURPOSE:To improve the voltage characteristic by providing 1st and 2nd transistors(TRs) whose emitter areas differ and whose bases are connected in common, a current mirror circuit and a feedback circuit to the 2nd TR. CONSTITUTION:With a power voltage Vcc applied, a voltage (v) is generated across a diode Q7. The voltage (v) biases TRs Q1, Q2 and a current flows from TRs Q3, Q4 to TRs Q1, Q2. Since the TRs Q1, Q2 are designed to have an equal collector current i1(i2), a base current flows from the TR Q5 to the TR Q2. Then the gain of the feedback circuit 1 is set high. The bias voltage of the TRs Q1, Q2 is made stable by the action of the feedback circuit 1 and a constant current (i) is generated from the TR Q9 whose base is common to the bases of the TRs Q3, Q4 and from a TR Q8 whose base is common to that of the TRQ6.
Patent JP-S63317803-A (JP)
Title: Load controller
Inventor: HAYASHI MASAYUKI
IPC: G05B11/16
Filed: 1987-06-19
Abstract: PURPOSE:To realize the common use to each other between the non-trigger and retrigger type action circuits by forming a timer circuit in a trigger action enable type. CONSTITUTION:A sensor circuit 1 consists of the ultrasonic, hot-wire and beam type human body detectors and outputs a detection signal to an amplifying circuit 2. The circuit 2 amplifies the received detection signal and outputs it to a deciding circuit 3. The circuit 3 excludes the noises out of the signal amplified by the circuit 2 and decides the detection signal for an object to be detected. A timer circuit 4 is triggered by the output of the circuit 3. A load drive circuit 5 performs the ON/OFF control of a load 6 consisting of an aromatic device, a display device or an output lease motor by means of the output of the circuit 4. A feedback circuit 7 feeds the signal outputted from the circuit 5 back to the circuit 2 and gives the non-trigger actuation to the circuit 4. Thus a non-trigger type action circuit is obtained and can be used in common with a retrigger type action circuit so that the cost is reduced.
Patent JP-S5944957-A (JP)
Title: Electric machine with conduction controlling means
Inventor: HATSUHARA MASANAO
IPC: H02K29/00
Filed: 1982-09-06
Abstract: PURPOSE:To reduce the variation in the torque of an electric machine by increasing the interval of the part that which crosses the effective magnetic flux of the part which forms a phase different to that adjacent to the part which crosses the effective magnetic flux of an armature coil wider than the interval of the part which has lower magnetic flux density which is produced in the boundary of poles. CONSTITUTION:A motor has an armature 6 and a rotor 1 as a movable element. The armature 6 has an armature core 7 and an armature coil. The core 7 has slots S1-S36 disposed at an equal interval. The armature coil is not filled in the slots which are formed between the slots in which coils forming a different phase such as slots S2, S5, S8..., and idle slots are formed. The interval of the slots which are disposed at both sides of the idle slot is wider than the width of the part which has lower magnetic flux density formed between the poles.
Patent JP-S5580023-A (JP)
Title: Thermistor
Inventor: NAGAI TAKESHI
IPC: H01C7/04
Filed: 1978-12-12
Abstract: PURPOSE: To prevent the location shift of the thermoelement even though it is applied to a container with a complicated structure by attaching the thermoelement to one face of the conductive base body having a fixed shape.  
     CONSTITUTION: The conductive base body 11 is formed so that its shape is the same as that of the base 9 of the case 2 and its size is slightly less than that of the base 9 and greater than that of the thermoelement 12. For a material of the base body, a conductive material with an excellent thermal conductivity such as copper is employed. The thermoelement 12 is of a chip element or of a film type element, and is attached to the central part of one face of the said conductive base body 11 through the adhesive layer 10. The bonding operation can visually be performed on monitoring the adherence state. Next, the element unit is put in the case 2, the other face of the base body 11 is attached to the base 9 of the case to form a thermistor. Preferably, a concave 13 is formed in the central part of the face of said base body 11 and the element is attached to the concave 13. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-2000343925-A (JP)
Title: Airflow switching device
Inventor: KACHI MICHIHIRO
IPC: F24F13/14
Filed: 1999-06-01
Abstract: PROBLEM TO BE SOLVED: To easily provide an airflow switching device securing a door shut property. SOLUTION: By abutting electrodes on a bearing flat face part 4c and a turning haft 5 and applying an electric current to them from a direction B with the bearing flat face part 4c and the turning shaft 5 abutted on each other, steel of the abutting part 9 is spot-welded. Thereby, a steel plate part 4a and the steel square turning shaft 5 can be easily fixed to provide an airflow switching device securing a door shut property without forming a turn prevention mechanism.
Patent JP-S5855959-A (JP)
Title: Cleaning device for electrophotographic copier
Inventor: WATANABE TOSHIO
IPC: G03G21/10
Filed: 1981-09-30
Abstract: PURPOSE:To discharge the ozone around a photoreceptor efficiently by connecting the shields of Corotrons near a cleaner body and the housing of the cleaner, recovering the ozone into the cleaner by the air flow, etc. of fur brush rolls, and decomposing the same with an ozone filter. CONSTITUTION:A Corotron 9 for charging and a precleaning Corotron 10 are installed before and behind a cleaner body 2. The Corotrons 9, 10 consist of shields 9a, 10a of a channel shape in section of which the opening parts direct to a photoreceptor 1 side and corona wires 9b, 10b contained in these shields 9a, 10a. The respective shields are so installed that fine gaps 9c, 10c are formed between the opening edges of the shields and the surface of the photoreceptor 1. On the other hand, the air flow contg. the ozone sucked into dust collecting housing 2a by fur brush rolls 3 is decomposed and filtered when it passes through an ozone filter 12 and only the air is released into the atmosphere.
Patent JP-S5855557-A (JP)
Title: Ferrous amorphous alloy containing fine crystal particle
Inventor: MASUMOTO TAKESHI
IPC: C22C19/00
Filed: 1981-09-29
Abstract: PURPOSE:To provide a ferrous amorphous alloy which has high strength, high hardness and high toughness and of which heat resistance and brittleness resistance are improved, by dispersing fine crystal particles comprising a specific alloy throughout an amorphous metal matrix uniformly in high density. CONSTITUTION:This ferrous amorphous alloy contains fine crystal particles comprising a formula XaYbMcZd(wherein X is one or more of a ferrous element selected from Fe, Ni and Co, Y is Zr or Hf, M is one or more of V, Cr, Mn, Nb, Mo and Ta, Z is one or more of B, C, P, Si and Ge, a+b+c+d is 100, on the basis of atom %, a is 45-95, b is 5-20, c is 0-25, d is 0-10). In preparing a ribbon or a fine wire from this alloy in a molten condition, by adjusting a cooling speed, the thickness of the ribbon and the diameter of the wire, fine crystal particles can be uniformly dispersed in an amorphous metal matrix in high density and, in addition, the amount of crystal particles can be easily adjusted.
Patent JP-S5486203-A (JP)
Title: Extraction unit for fundamental wave signal
Inventor: ADACHI TAKESHI
IPC: G10L25/90
Filed: 1977-12-21
Abstract: PURPOSE: To extract effectively and definitely only fundamental components from an input signal by proviing a variable characteristic filter which allows fundamental frequency components of the input signal including higher harmonics to pass through and by controlling this filter with the output of a fundamental wave detection circuit.  
     CONSTITUTION: An input signal including a higher harmonic of a sound of a musical instrument performance is supplied to voltage control type variable characteristic filter 20 and fundamental wave detection circuit 22 via buffer 12. Circuit 22 is equipped with LPF s  23a, 23b... with their frequencies set higher in sequence, whose output signals are detected by signal detection circuits 24a, 24b.... The sequence of the lowest-pass LPF 23a is supplied from circuit 24a to gate element 26a directly, but sequences of other LPF s  23b, 23c ... are inputted to gates 26b, 26c... through AND circuits 25b, 25c..., and 27, and inverters 28b, 28c... and filter 20 is controlled by gate outputs. Consequently, the output signal of the lowest-pass filter LPF allowing the input signal to pass through is generated and signals of other filter sequences are inhibited, so that only fundamental wave components will be extracted. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H04309353-A (JP)
Title: Self-suction type bubble generator
Inventor: NAKAMURA TAKUJI
IPC: A61H23/00
Filed: 1991-04-05
Abstract: PURPOSE:To easily manufacture the bubble generator, and to generate sufficient bubbles by forming an outlet part of a feed water piping inserted into a bathtub by a small pipe, and inserting an air piping into the small pipe part. CONSTITUTION:To an outlet part of a feed water piping 1, small pipes 3,4 are attached in advance, and between the small pipes 3,4, and also, in the center part of the feed water piping 1, the tip of an air piping 2 is attached. Also, the inside diameter D2 of the small pipe 4 is larger than the inside diameter D1 of the small pipe 3, the inserted tip of the air piping 2 is cut toward the flow direction of feed water and the cutting angle theta is set to 45 deg..
Patent JP-S63317206-A (JP)
Title: Builtup roll for rolling h-shape steel flange end
Inventor: NAKAI YUTAKA
IPC: B21B27/02
Filed: 1987-06-19
Abstract: PURPOSE:To obtain a pressure roll for an H-shape steel flange end excellent in abrasion resistance and anti-seizing property by fixing an inner sleeve and an outer sleeve to a roll axis and then forming a highly buildup hardened layer on the inner sleeve to provide an H-shape steel flange end face and its inner forming die part. CONSTITUTION:The roll axis 1 is inserted by shrinkage fit into the inner sleeve 2 and the outer sleeve 3 is fixed by shrinkage fit on the inner sleeve. Cast iron or steel having high toughness is used for the roll axis 1 but a disused simple roll can reclaimed, too. Steel material having 0.3-0.5wt.% carbon contents or low alloy steel is used as the material of the inner sleeve. Abrasion resistant material which is free from hardness reduction at a rolling temperature is used as building-up material for a highly buildup hardened layer 4. A flange end forming die part 5 and a flange end inner surface forming die part 6 are provided for the layer 4. Cast material such as 'Adamite(R)' material and ductile material, etc., is used for the outer sleeve 3. Therefore, this builtup roll is provided with abrasion resistance and anti-seizing property and enables a large reduction of fundamental unit.