baber/WOPTO huggingface dataset:
Patent JP-S5610304-A (JP)
Title: Method of high speed filtration
Inventor: KANAI MASAKUNI
IPC: C02F1/28
Filed: 1979-07-09
Abstract: PURPOSE: To dynamically filter a large quantity of water and obtain clean water in high speed, by providing an anthracite layer on a slightly coarse sand layer and by performing the filtration while back-washing away the clogging of the sand layer and stirring the anthracite layer.  
     CONSTITUTION: The anthracite layer 3' is stirred by the incoming water 6 ejected from an ejection stirrer 2' to maintain enough contact and apply adsorptive power to perform dynamic filtration. The upper portion of the static sand layer 4 under the anthracite layer 3' needs to be sometimes stirred to be prevented from getting clogged. To perform this prevention, water is introduced from a pipe 5 to cause the back wash. The above-mentioned treatment is effected while a water level WL1 is maintained. According to this method, a large amount of water can be rapidly filtered as an initial filtration speed is retained. This results in removing remaining solutes and providing clean water. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-2000283119-A (JP)
Title: Screw structure and member
Inventor: KOBAYASHI KENCHI
IPC: F16B5/02
Filed: 1999-03-29
Abstract: PROBLEM TO BE SOLVED: To provide a screw structure and members allowing easy work without requiring complicated work. SOLUTION: A case 1 comprises a lid 3 and a base 5, which are screwed with screws 13 with the lid 3 put on the base 5. The lid 3 has a box shape having a downward opening and has an upper face 7, side faces 9a, 9b or the like, while plate thicknesses of corner parts in the side faces 9a, 9b, i.e., near boundaries between the side faces 9a, 9b are thick. The upper face 7 is formed with holes 11 allowing penetration of the screws 13 in its four corners, while the holes 11 are longitudinally long and penetrate the corner parts of the side faces 9a, 9b. Four square bar-like projecting parts are formed on the inside of the hole 11 along the longitudinal direction of the hole 11 at nearly even intervals. When the screw 13 is inserted through the hole 11, the projecting parts are formed with screw threads.  The base 5 has a flat plate shape and has an upper face 21, a bottom face 25, side faces 23a, 23b or the like. The upper face 21 is formed with threaded holes 27 in positions corresponding to the holes 11 of the lid 3, near corner parts of the upper face 21.
Patent JP-H02267229-A (JP)
Title: Production of cold rolled steel sheet excellent in workability from thin cast slab
Inventor: SAYANAGI SHIRO
IPC: C22C38/04
Filed: 1989-04-07
Abstract: PURPOSE:To improve workability by a process in which hot rolling stage is simplified by forming a low-C steel in which respective contents of Mn, S, O, and B are specified into a thin cast slab and subjecting the above to hot rolling, descaling, cold rolling, and annealing after a specific time from solidification. CONSTITUTION:A molten steel having a composition containing, by weight, <=0.005% C, <=0.5% Mn,<=0.02% S, 0.06-0.012% O, and 0.6-1.5N B is continuously cast into a thin cast slab of <=60mm thickness. Hot rolling is applied to the above after >=3min from the conclusion of solidification, and the resulting plate is descaled, cold-rolled, and successively subjected to continuous annealing together with overageing treatment, followed by temper rolling, if necessary. By this method, the cold rolled steel sheet having superior workability and reduced in age deterioration can be produced at a low cost while obviating the necessity of using dead-soft C steel.
Patent JP-S60232412-A (JP)
Title: Gas range
Inventor: KURODA ENYOU
IPC: F23D14/64
Filed: 1984-04-28
Abstract: PURPOSE:To contrive to exchange burners with each other in a gas range without removing their nozzles, by fixing each burner body on a supporting stud, as well as to fit and fix the tip of a nozzle to the other end of a gas burner, on the side of an intake port for gas. CONSTITUTION:Usulally right and left, two gas burners 2 are provided on a gas range 1 for use. When those burners are exchanged from right to left, first gas cocks 4 are removed from the range without taking off gas nozzles 3, next both gas burners 2 are exchanged with each other, being fixed on supporting studs 8 respectively, then the gas cocks 4 are taken back to their positions, where are sealed gas-tightly at the end. The tip of a gas nozzle 3 is fitted and fixed to the end 5 of gas intake port of a burner 2, and a gas cock 4 is fitted to the gas nozzle 3 by the intermediary of a gas seal packing without using any screws to joint them. With such an arrangement, burners can easily be exchanged by one touch operation without taking off their nozzles, in addition, cocks 4 can easily be fitted to the nozzles 3 by the intermediary of gas seal packings 6. As a result, remarkable effects can be expected in regard to the safety, convenience, and handling of the titled gas range.
Patent JP-H10285135-A (JP)
Title: Frequency controller and method, receiver and communication equipment
Inventor: KISHIMOTO TAKURO
IPC: H04L7/02
Filed: 1997-04-04
Abstract: PROBLEM TO BE SOLVED: To provide the frequency controller that traces a frequency deviation of an OFDM (Orthogonal Frequency Division Multiplex) signal. SOLUTION: An arithmetic processing section 1322 calculates in which direction, upward or downward, a center of an energy distribution of metrics obtained through discrete Fourier transformation by a discrete Fourier transformation section 1200 is deviated from a theoretical frequency center to obtain a frequency difference and a control signal generating section 1350 generates an AFC signal corresponding to the frequency difference.
Patent JP-S59213628-A (JP)
Title: Soft magnetic material
Inventor: TAKEI HARUHIKO
IPC: H01F1/34
Filed: 1983-05-18
Abstract: PURPOSE:To make temperature coefft. uniform and small and to improve magnetic characteristics by composing a soft magnetic material of specified proportion of ferric oxide, nickel oxide, zinc oxide, lithium oxide, and cobalt oxide. CONSTITUTION:A soft magnetic material comprising a compsn. consisting of 45-64mol% Fe2O3, 10-50mol% nickel oxide, <=40mol% ZnO, and 0.1-7mol% Li2O, admixed further with 0.01-1wt% cobalt oxide. The content of the above described Fe2O3 corresponds to the amt. expressed by the chemical formula: MFe2O4 (where M is a divalent metallic ion) or by 5% less than said value. The soft magnetic material has a uniform and small temperature coefft. together with superior magnetic characteristics. When it is used in combination with a capacitor or a variable capacity diode, etc., superior temperature compensation is attained.
Patent JP-S63253584-A (JP)
Title: Optical disk memory device
Inventor: HARA SHINJI
IPC: G11B7/004
Filed: 1987-04-10
Abstract: PURPOSE:To clean only necessary place and to execute the cleaning of high reliability without giving any damage on the disk surface by providing the actuator working the dust removing means of an optical disk at the stationary side of a memory device. CONSTITUTION:In the case of a large dust sticking on the surface of an optical disk 1, an unrotatable error signal 20 is transmitted from an error correction circuit 12 and a motion command is transmitted on a mechanism driving circuit 14 by the decision of a microprocessor 13. The circuit 14 drives a rotary actuator 16 to move a pin 8 upwards, a lever 7 is rotated to push down one end of a lever 9, the lever 9 is rotated centering around a fulcrum 10 and the tip of a brush 6 is brought into contact with the surface of the disk 1 to remove the dust thereon.
Patent JP-H0248996-A (JP)
Title: Dampening water composition for planography and additive for dampening water
Inventor: KUNICHIKA KENJI
IPC: B41N3/08
Filed: 1989-04-06
Abstract: PURPOSE:To eliminate toxicity and enhance emulsifiability or the like by preparing a dampening water composition for planography which contains a compound obtained by adding a specified amount of ethylene oxide or the like to a monoalcohol, such as a 5-11C alkane, or the like. CONSTITUTION:Ethylene oxide and/or propylene oxide in an amount of 1-10mol is added to one or two alcoholic hydroxyl groups possessed by a 5-11C straight- chain, branched or cyclic alkane or alkene compound by a conventional synthetic method, thereby synthesizing an additive for dampening water. The additive is blended into water to prepare a dampening water containing 0.1-5wt.% of the additive. Use of the dampening water prevents contamination of non-image areas or filling-up of halftone dot image areas at the time of printing by a PS plate comprising an anodized aluminum support.
Patent JP-H07296897-A (JP)
Title: Plvg-in connector for rear panel wiring
Inventor: KAARU TSUERU
IPC: H01R12/50
Filed: 1995-04-12
Abstract: PURPOSE: To make secure contact by constituting a shield contact resistor comprised of a wire contact pin pushed into a printed wiring board and providing the pin with an elastic wire in a cut-out equivalent to a shield material of a multi-socket. CONSTITUTION: A shield contact employing a wire contact pin 1 called a bundle- shaped connector pushed into a rear panel printed wiring board 5 is provided. This pin 1 consists of a plurality of wires 2 provided with a cap 3, and the pin 1 is pushed into the rear panel printed wiring board 5 via a push-in shoulder part 4. In this case, a contact spring is insulated from and introduced into a housing tube 8. This tube 8 is engaged in a multi-point socket casing 7. All metal-based easing constitution can be connected in contact with this shield contact connector. A plurality of wires can be connected in contact with conductive plastic, a single tube, and a whole metal.
Patent JP-S5615404-A (JP)
Title: Double-headed spinning device
Inventor: SHIBUYA YOSHISATO
IPC: D01D5/08
Filed: 1979-07-09
Abstract: PURPOSE: Titled device in which the polymer path is branched into 2 or more ways for medifier injection and other purposes, thus permitting the diversification of products readily in the direct spinning process.  
     CONSTITUTION: The polymer is fed from inlet 1 and branched into paths 2 and 3 where the amounts to be branched is controlled with metering gear pumps 7 and 7'. From modifier inlets 5 and 5' are arbitrarily injected modifiers such as antistatic, dyeability improver or flame retarder and they are kneaded with the polymer with mixers 6, 6', 8 and 8' which are equipped with static kneading element. Then, they are extruded from spinning pack 10 to effect melt spinning. This device readily gives usual fiber as well as conjugate fiber. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H09248261-A (JP)
Title: Suction port body for vacuum cleaner
Inventor: OTSU YASUHIRO
IPC: A47L9/04
Filed: 1996-03-15
Abstract: PROBLEM TO BE SOLVED: To provide a small-sized suction port body with a simple structure by which cleaning efficiency is improved. SOLUTION: A communicating tube 32 provided on the under face in the rear center part of a casing 15 and communicating a first suction port 20 and a second suction port via a suction air path 34 is backwardly led and rotatably axially supported. A turbine chamber 38 for rotatably housing a shaft member of a flat air turbine 37 between a first cleaning member chamber 18 and a second cleaning member chamber 19 is provided in the almost center of the casing 15. A trumpet-shaped suction supply air path 43a whose cross section becomes smaller from a suction opening 44 opened on one side of the communicating tube 32 in the rear part of the casing 15 toward the front side of the turbine chamber 38 is communicably formed like a scroll.  A drive transmission means for transmitting the driving of the air turbine 37 to the ends of rotary blades 63 and 64 is partitively arranged on the side opposite to the suction air path 34. Cleaning performance is improved by the plurality of moving blades 63 and 64 which are rotated by the air turbine 37 with high torque and the suction port body can be miniaturized.
Patent JP-S61246950-A (JP)
Title: Magnetic recording and reproducing device
Inventor: INOMATA TAIJI
IPC: G11B5/02
Filed: 1985-04-25
Abstract: PURPOSE:To miaturize a rotary transformer by switching the heads of channels 1-4 at specified timing and making the input and output of signals to these heads by a switching device that makes it through the transmission lines of two channels, thereby mounting the device on the rotary cylinder side. CONSTITUTION:Magnetic heads 8-11 of channels 1-4 of a magnetic recording and reproducing device are arranged at the equal interval of 90 deg. to a tape 4 wound on a rotary cylinder and heads 8, 10, 9, 11 of channels 1, 3 and 2, 4 are switched selectively by switching circuits 21, 22. Switching of circuits 21, 22 is made at the timing of a switching signal generating circuit 29 and input and output are made to two channels. A rotary transformer 23 is provided between the circuits 21, 22 and recording/reproducing amplifiers 24, 15. The circuits 21, 22 are mounted on the rotary cylinder side. Power source is supplied to these circuits 21, 22 by a spring, a brush etc. and the rotary transformer 23 is made small.
Patent JP-S5422780-A (JP)
Title: Complementary misic
Inventor: SAKAMOTO TAKASHI
IPC: H01L29/78
Filed: 1977-07-22
Abstract: PURPOSE:To avoid the occurrence of the parasitic thyristor and thus to prevent the abnormal operation of the circuit by forming the diffusion layer which is to be fixed to the power voltage close to both the N-channel and P-channel regions.
Patent JP-H01260779-A (JP)
Title: Cooker, heater and burner
IPC: H05B3/10
Filed: 1988-04-08
Abstract: PURPOSE:To provide a device with excellent coating film performance, corrosion resistance and far infra-red radioactive characteristics by arranging a far infra-red radioactive heater within a cooking chamber, wherein the heater is composed of ceramics which is formed in such a way that far infra-red coating composition is coated on the surface of a heater protective base metal such as crystallizing glass and the like so as to be polymerized. CONSTITUTION:Far infra-red radioactive coating composition is material wherein silicone alocoxide or metallic alocoxide and mixture thereof, and furthermore respective partial condensate of these are used as bonding agents, and far infra-red radioactive pigments are included in vehicles composed of these substances. When the far infra-red radioactive coating composition as set forth herein above is coated on the surface of crystallizing glass or silica glass acting as a heater protective base metal 1a so as to be polymerized, a precise far infra-red radioactive layer 1b which is chemically binded firmly can be obtained on the surface of the heater protective base metal 1a. Far infra-red radioactive heater 1 with the aforesaid far infra-red radioactive layer is arranged in a cooking chamber provided for the chassis 11 of it. This constitution thereby enables a device to be provided with excellent coating film performance, corrosion resistance and far infra-red radioactive characteristics.
Patent JP-H07273905-A (JP)
Title: Emergency notice equipment
Inventor: TERAJIMA KAZUO
IPC: H04M11/04
Filed: 1994-03-31
Abstract: PURPOSE:To attain initial countermeasure step against an accident and to surely extinct fire or other operation by using a housing sensor quantitatively detecting a physical quantity such as temperature so as to notify it to a destination automatically through a telephone line. CONSTITUTION:Registration of ranked specific destinations is made to a registration memory 37 by using an external device 38. Furthermore, a voice message to destinations is registered. When a breakout of a fire is sensed by a thermal sensor 2 and a smoke sensor 3 and a line control circuit 41 is hooked off to switch a changeover switch 42. Then a registered telephone number is read from the memory 37 and a destination is called. A voice message is sent to an opposite party when the opposite party hooks off and the controller 41 is hooked on and the switch 42 is switched again.
Patent JP-H03290374-A (JP)
Title: Production of sintered article
Inventor: MIURA RITSU
IPC: C04B35/00
Filed: 1990-04-03
Abstract: PURPOSE:To enable the mass-production of a sintered material having high dimensional accuracy at high heating rate without causing the blistering, cracking, deformation, etc., in vacuum degreasing process by using a specific binder in the degreasing and sintering of an injection-molded article to obtain a sintered material. CONSTITUTION:The binder to be used in the present process is composed of 5-40wt.% of an ethylene-vinyl acetate copolymer and/or an ethylene-ethyl acrylate copolymer, 5-40wt.% of PP and/or atactic PP, 5-40wt.% of polystyrene and/or PE, 20-70wt.% of paraffin wax and/or carnauba wax and <15wt.% of a plasticizer consisting of diethyl phthalate and/or dioctyl phthalate and/or a lubricant consisting of stearic acid and/or oleic acid. The binder is mixed to powdery metal or ceramic and the mixture is injection molded. The molded article is heated in a vacuum of <=1Torr at a heating rate of 5-100 deg.C/hr to 250-500 deg.C to remove 40-95wt.% of the binder component. Thereafter, the molded article is heated again in vacuum and sintered after substituting the atmosphere with Ar gas during the heating stage.
Patent JP-S5515627-A (JP)
Title: Washing and deodorizing method for malodorous gas
Inventor: HARUTA TAKEO
IPC: B01D53/77
Filed: 1978-07-18
Abstract: PURPOSE: To remove malodorants with high efficiency by washing gas contg. malodorous gas with an aq. soln. contg. chlorite ions while irradiating ultraviolet rays.  
     CONSTITUTION: Malodorous gas-contg. gas 1 to be treated is introduced into washing tower 2, where it is irradiated with ultraviolet rays of 2537Å or 1850Å wavelength emitted from low voltage mercury lamps 3 at an output above about 0.1 W/Nm 3 .hr -1 . At the same time, aq. soln. 7 contg. about 10W1000ppm chlorite ions adjusted to pH 2W12 beforehand is sprayed upon gas 1 from spray nozzle 6 so that the ratio of soln./gas becomes about 0.1W30kg/kg. Thus, gas 1 and soln. 7 are contacted countercurrently. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S5714867-A (JP)
Title: Cleaning device for photoreceptor of electrophotographic copier
Inventor: MIYAGI KOUJI
IPC: G03G21/10
Filed: 1980-06-30
Abstract: PURPOSE:To enhance cleaning efficiency and prevent scattering of a toner without using any blower by providing a flicker net affixed with a three-dimensional reticulate structural body in rubbing contact with a cleaning brush. CONSTITUTION:A flicker net 3 affixed with a three-dimensional reticulate structural body 4 wuch as reticulated urethane foam is provided to a cleaning brush 2 in rubbing contact therewith. A window riser 8 is provided in the upper part of the brush 2 and a toner sealing film 9 in the lower part. With this constitution, the toner stuck on the brush 2 is scrapped by the net 3, falls through the body 4 and is recovered by an auger. Since the scraping of the toner is accomplished by the net structure, cleaning efficiency is exceedingly high, and clouding by the scraped toner is prevented, whereby the resticking of the toner on the brush 2 is obviated and the scattering of the toner is prevented.
Patent JP-S57204051-A (JP)
Title: Electrophotographic receptor
Inventor: OOTA MASABUMI
IPC: G03G5/06
Filed: 1981-06-10
Abstract: PURPOSE:To obtain the titled receptor with high sensitivity to a semiconductor laser by forming a photosensitive layer consisting of a charge generating layer contg. a trisazo pigment and a charge transferring layer contg. a specified hydrazone compound on an electrically conductive support. CONSTITUTION:A photosensitive layer 44 is formed on an electrically conductive support 11 by laminating a charge generating layer 22 having 0.01-5mum thickness and contg. 10-100wt% trisazo pigment represented by formulaI, and a charge transferring layer 33 having 2-100mum thickness and consisting of 10- 80wt% hydrazone compound represented by formula II (where each of R1- R4 is H, 1-3C alkyl, 1-3C alkoxy, optionally substituted dialkylamino, dibenzylamino or halogen) and a binder resin such as polyester resin or contg. further additives such as halogenated paraffin. The resulting receptor with high sensitivity shows flat sensitivity over the whole visible range and the wavelength range of a semiconductor laser, has superior durability, and gives a clear image.
Patent JP-H08288823-A (JP)
Title: Output level conversion circuit
Inventor: AOYAMA TAKASHI
IPC: H02M3/00
Filed: 1995-04-13
Abstract: PURPOSE: To provide an output level conversion circuit which has its small constitution area and can operate fast with small current consumption. CONSTITUTION: When Va (signal voltage entered to a terminal 11a) is higher than Vb (signal voltage entered to a terminal 11b), Both Q1 and Q2 are turned on and the voltage V1 is equal to the power voltage VCC. When Va is lower than Vb, the Q1 and Q2 are turned off and on respectively and the voltage V1 is equal to (VCC-R1×i1). The MOS drive voltage V2 and V3 which are outputted from a Q3 are equal to (V1-VBE) and (V2-R2×i2) respectively. Then the threshold level VS1 of drive voltage of a p-MOS (M1) is set approximate to (VCC-VBE), and the threshold level VS2 of drive voltage of an n-MOS (M2) is set approximate to (VCC-R1×i1-VBE-R2×i2). When Va>Vb is satisfied, M1 and M2 are turned off and on respectively. Then M1 and M2 are turned on and off respectively when Va<Vb is satisfied.
Patent JP-H06295992-A (JP)
Title: Semiconductor device containing high capacitance capacitor and manufacture thereof
Inventor: KIN SEITAI
IPC: H01L27/108
Filed: 1992-03-13
Abstract: PURPOSE: To have various high-capacitance capacitors by forming an insulation film having pin holes on a conductive structure and growing Si through the pin holes. CONSTITUTION: After forming a polysilicon layer on a semiconductor substrate, a photo-resist pattern 12 is formed on the surface of the polysilicon layer 11 implanted with an impurity and deposited, then using it as an etching mask, this layer 11 is anisotropically etched, the pattern 12 is removed, a conductive structure is formed, a silicon nitride film 13 is formed, the surface of the conductive structure is oxidized to form a silicon oxide film 15 on the nitride film 13, resulting in that pin holes are formed at the nitride film and it is partly cracked. Lower Si parts are selectively grown to form an Si layer on the surface of the nitride film 13 through pin holes 14, thereby increasing the capacitance of a capacitor more than 1.5 times that of the conventional one.
Patent JP-S59214667-A (JP)
Title: Thermal head
Inventor: TAKADA MITSUYASU
IPC: H05B3/20
Filed: 1983-05-19
Abstract: PURPOSE:To obtain a thermal head capable of giving high-quality picture recording by effectively controlling resistance values and heat distribution by a method in which a heating element is simplified by using electrode material and made closely touchable to a recording paper wholly. CONSTITUTION:A recording element consisting of electrodes 11 and 12 and a heating element 15 is made up by printing a thick film of the same electrode metal at one time by using a pattern mask including the resistor pattern of the electrodes 11 and 12 and the heating element 15. The electrodes 11 and 12 are continued with the heating element 15 on a jointless smooth face, and therefore, the heating element 15 can be closely contacted with a thermal recording paper.