baber/WOPTO huggingface dataset:
Patent JP-S56118371-A (JP)
Title: Semiconductor integrated circuit device
Inventor: WADA KUNIHIKO
IPC: H02H7/20
Filed: 1980-02-22
Abstract: PURPOSE: To protect a circuit having FET, by employing a gate control diode that has a lower breakdown voltage than the punch through voltage of MISFET and maintaining the gate of the diode in a state of earthing or negative potential.  
     CONSTITUTION: An N +  layer 2 is formed on a P type substrate 1 and a part of gate 8 is stacked on the layer 2 with an intervention of a insulating film 3. By so doing because of an N + -P junction a gate control diode GCD is obtained. The breakdown voltage VBD of the N + -P junction changes according to the voltage V g  applied to the gate, and when the V g  surpasses a fixed level it maintains a fixed value VBDO. The GCD is formed so that it has the identical properties with the normal zener diode and furthermore the breakdown voltage is practically lowered by applying earthing voltage of the IC power source or negative voltage of the substrate and it is maintained at the lower level than the punch through voltage of the  short channel FET. When this GCD is employed to the input protective circuit 20,  the GCD works to protect the circuit 10 whenever the input Vin surpasses the punch through voltage of the protective circuit 20. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H11205036-A (JP)
Title: Bidirectional polarization antenna system
Inventor: ARAI HIROYUKI
IPC: H01Q9/16
Filed: 1998-01-19
Abstract: PROBLEM TO BE SOLVED: To provide an antenna system which is bidirectional and can be installed at a wall surface, a ceiling, etc., using horizontal polarization. SOLUTION: A bidirectional antenna 2 for horizontal polarization which is nearly into the shape of X is arranged on a ground panel 3. The antenna 2 is excited by one-point power feeding by a power feeding wire 2b connected to a rear surface. As currents flowing radially (in the state of X) through an antenna element 2a cancels each other, a radio wave is not radiated to the front surface of the antenna. However, all the directions of radio waves flowing through four vertically lowered wire parts 2c of the element 2a are equal and the respective parts of the parts 2c radiate radio waves by characteristic, like a mono-pole antenna. In addition, the radio waves are not radiated in a vertical direction as the directions of the phases are opposite depending on upward/ downward.  On the other hand, the radiation of the radio waves in right/left directions is synthesized well by adjusting an interval d2 to radiate horizontal polarization of bi-directional radiating characteristic in the shape of 8.
Patent JP-H10220679-A (JP)
Title: Joint structure of synthetic resin pipe
Inventor: SUGIURA EIICHI
IPC: F16L47/06
Filed: 1997-02-04
Abstract: PROBLEM TO BE SOLVED: To join synthetic resin pipes with ease regardless of weather conditions without machining the outer peripheral surface and fixing the pipe end section for a long time. SOLUTION: This structure comprises a plurality of ring-like grooves 5A, which are formed in the outer peripheral surface of the end section 5 of a pipe in parallel with each other, a plurality of claws 6A, which are formed in the end section 6 of another pipe, whose hole is expanded so as to be inserted by the end section 5 of the former pipe, and are meshed with the ring-like grooves 5A, and a packing 7, which intervenes between the end face of the end section 5 of the former pipe and the inner face of the end section 6 of the later pipe. Each of the claws 6A meshes with the ring-like grooves 5A only when the tensile force works against both end sections 5 and 6.
Patent JP-H03226886-A (JP)
Title: Magnetic bar code detector
Inventor: WAKAUMI HIROO
IPC: G06K7/08
Filed: 1990-01-31
Abstract: PURPOSE:To obtain a bar code read system of high reliability by using the structure where an MR element and a lead line are connected with a bump material between them. CONSTITUTION:An internal lead line 13 formed on a resin film 12 and an IC board 17 where an MR element 16 is formed by the IC process are joined by a bump material 14. The internal lead line 13 is supported and fixed to a head frame 11, which is provided with a required cut, with an adhesive so that the surface of the resin film 12 and the front end of the head frame 11 are on the same plane. A permanent magnet 15 to generate a magnetic field is stuck to the head frame 11 on the face opposite to the resin film 12 by the adhesive. Thus, the detection height is improved, and a bar code detecting system of high reliability is constituted.
Patent JP-S61181502-A (JP)
Title: Reverse osmosis membrane and its production
Inventor: MATSUMOTO SATOSHI
IPC: B01D71/16
Filed: 1985-02-08
Abstract: PURPOSE:To obtain the title reverse osmosis membrane capable of separating a soln. of salts in remarkably high degree by allowing a metal to exist locally in the vicinity of the surface of a cellulose derivative membrane in high concn. CONSTITUTION:A polymer consisting of a cellulose derivative and org. additives such as maleic acid and butane tetracarboxylate are dissolved in a solvent consisting essentially of dioxane, and a film is formed from the soln. When the obtained reverse osmosis membrane is then heat-treated, metals such as Fe, Ti, Pb and Cr having >=4sp.gr. are added to a heat treating bath in the form of ions, chelates and elements. Concretely, inorg. salts such as ferric sulfate, ferric chloride and ferric nitrate are preferably used. The heat treating temp. is preferably controlled in the temp. range 30-95 deg.C. Consequently, a reverse osmosis membrane on the surface layer part of which metals are distributed in high concn. can be obtained.
Patent JP-2000219842-A (JP)
Title: Polyvinyl butyral resin for binder of coating and coating
Inventor: EGUCHI YUJI
IPC: C09D129/14
Filed: 1999-01-29
Abstract: PROBLEM TO BE SOLVED: To obtain a polyvinyl butyral resin having excellent solvent solubility, capable of forming good coatings, and useful as a coating binder. SOLUTION: Polyvinyl butyral resin is obtained by subjecting polyvinyl alcohol to condensing reaction with butyl aldehyde and has a butyral formation degree of 60-75 mol.% calculated on the basis of the measurement of 1H-NMR spectrum and an isotactic triad type residual hydroxyl group content of <=0.5 mol.%.
Patent JP-S60182807-A (JP)
Title: Dc feedback type amplifier
Inventor: HERIBERUTO GORUTSUERU
IPC: H03F3/72
Filed: 1985-02-08
Abstract: To provide for essentially instantaneous stable operation of an electrical circuit, including an internal R/C feedback circuit, upon connection to an interruptible power supply source (+US, G), the circuit includes an additional or auxiliary input terminal (14) which is connected to a series-capacitor network, including a series capacitor (C1, 19) serially connected between the additional terminal (14) and a power terminal of the power supply, and a shunt capacitor (C2, 18) connected between the additional terminal (14) and ground or chassis of the power supply; and wherein the capacity value relationships of the series and shunt capacitors are so selected with respect to the voltage of the power supply that the additional terminal will have a voltage corresponding to at least approximately the operating point (UV) impressed thereon upon connection of the power supply means.
Patent JP-H01196302-A (JP)
Title: Chemical treatment process for timber
Inventor: NIKI MASAO
IPC: B27K5/00
Filed: 1988-02-01
Abstract: PURPOSE:To provide flame retardance and enhance dimension stability, hardness and prevention of cracks by impregnating a timber with water-soluble radical polymerized compound water solution essentially containing water-soluble radical polymerized organic acid metal salt and polymerizing the same under the state of water retention. CONSTITUTION:A timber is impregnated with water solution composed of radical polymerized organic acid metal salt water solution in which another water solution radical polymerized compound is mixed, and then heated and polymerized in the state that the water content is scattered over as little as possible. A high molecular compound is modified in the timber by said process and also filled into the spaces of the timber to have water-insoluble organic acid metal polymer contained in the timber and provides flame retardance for the timber. Further, performances such as flame retardance and the like are retained for a long time by being impregnated with water solution inorganic acid salt group.
Patent JP-H01199034-A (JP)
Title: Hydraulic speed change control device for speed change transmission device
Inventor: NISHIKAWA FUMIAKI
IPC: F16H63/24
Filed: 1988-02-01
Abstract: PURPOSE:To reduce an impact force produced during speed change, by a method wherein a boost valve to hold an oil pressure in a forward reverse switching hydraulic circuit and a pressure relief valve to instantaneously reduce the oil pressure of the hydraulic circuit in linkage with control of a speed change control valve are mounted in the hydraulic circuit. CONSTITUTION:A forward reverse switching hydraulic circuit 3 between a forward reverse switching control valve 2 and a forward reverse switching clutch 1 and a speed change hydraulic circuit 6 between a speed change control valve 5 and a speed change clutch 4 positioned facing thereto are brought into a state in which an oil pressure is relieved when the control valves 2 and 5 are in neutral positions N and M. Thereby, when the control valve 2 or 5 is rendered operative, an oil pressure in a range of from a hydraulic pump 9 to the control valves is reduced once, and thereafter, an oil pressure is gradually increased to a maximum pressure. An oil pressure in the hydraulic circuit 3 and a cylinder 10 can be reduced as the pressure relief time of a pressure relief valve 8 is increased, and as a result a clutch 1 is brought into a half clutch state or a complete disengaged state. This constitution reduces an impact force exerted on the clutch 4 during speed change.
Patent JP-S56119796-A (JP)
Title: Chrome plated sheet steel with superior weldability
Inventor: AZUMA MITSUO
IPC: C25D11/38
Filed: 1980-02-26
Abstract: PURPOSE: A chrome plated sheet steel of improved weldability within a range of not hampering corrosion resistance by depositing the nonmetallic chromium layer consisting of metallic chromium and hydrated chromium oxide at rates differing with one side of an original sheet and the other.  
     CONSTITUTION: The nonmetallic chromium layer consisting essentially of 5W50mg/ m 2  metal chromium and 2W30mg/m 2  hydrated chromium oxide in terms of chromium is deposited on one side of a tin plate or the like. The nonmetallic chromium layer of 0.5W10mg/m 2  metallic chromium less than that of the other side, and 2W30mg/m 2  in terms of chromium is deposited on the other side. Although the one side of this plated sheet steel contains a larger amount of metallic chromium and is highly resistant to corrosion, the other side contains metallic chromium of the amount of the extent of maintaning intermediate corrosion preventive properties, and filoform rust resistance. Hence, the other side is low in the contact resistance between electrode and sheet and between sheet and sheet during welding, thereby improving weldability such as weld appearance, weld strength, and continuity of nuggets. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S55114361-A (JP)
Title: Centrifugal enricher
Inventor: KUWAMOTO YASUO
IPC: C02F1/38
Filed: 1979-02-26
Abstract: PURPOSE: To obtain a high ratio of solid recovery by a method wherein a rotary cylindrical body is made in two-stage construction of small and large cylinders, and solid not recovered by the small one is recovered in the large cylindrical body using a larger centrifugal force.  
     CONSTITUTION: Raw liquid is supplied from a feeding pipe 12 and is given a centrifugal force in the first cylinder 1, so that solid component A is separated and deposited on the wall of the first cylinder 1. Supernatant B separated from the solid A but still containing part of solid overflows the barrier plate 8 and enters the second cylinder 6. Solid components not separated in the first cylinder 1 receives centrifugal force of the second cylinder whose diameter is larger than that of the first one, so that the solid C is separated. This increases the total recovery of solid and enhances clarity of supernatant D. The supernatant D flows through the overflow-barrier 10 to the outside. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H04212716-A (JP)
Title: Production of thin film type magnetic recording medium
Inventor: ONODERA KATSUMI
IPC: C23C14/02
Filed: 1991-02-18
Abstract: PURPOSE:To produce a thin film type magnetic recording medium enabling travelling under very slight floating with stability of a magnetic head by roughening the surface of a nonmagnetic substrate to prescribed roughness and making the roughness fine by ultrashort waves treatment in a liq. CONSTITUTION:An Ni-P alloy layer is formed on the surface of a discoid Al alloy sheet by electroless plating and the surface of the layer is polished to obtain a nonmagnetic substrate having prescribed roughness. This substrate is washed to remove abrasives, etc., and the roughness is made fine by treatment with ultrashort waves having 200-160kHz frequency in pure water. A Cr underlayer, a magnetic layer of a Co alloy and a protective lubricating layer of amorphous carbon are then successively formed on the surface of the substrate by sputtering and fluorocarbon type liq. lubricating oil is further applied to produce a medium having proper surface frictional characteristics and enabling travelling under very slight floating with stability of a magnetic head.
Patent JP-S52105344-A (JP)
Title: High frequency heating device
Inventor: TANAKA JIYUNZOU
IPC: F24C7/02
Filed: 1976-03-01
Abstract: PURPOSE: To simply perform the mounting and demounting of a rotating placing base to the inside of a heating chamber. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-2000218716-A (JP)
Title: Bag making device
Inventor: MORI TOMOHIRO
IPC: B65H23/035
Filed: 1999-01-29
Abstract: PROBLEM TO BE SOLVED: To provide a bag making device having meandering correcting function capable of rapidly correcting meandering and setting a film to a correct position before shift quantity becomes large. SOLUTION: Guide members 12 protruding outwardly are attached to both side surfaces 10a of a bag making device main body 10 for forming a strip like film into a cylindrical shape and allowed to cooperate with a stepping motor by a rack/pinion and the outward protruding quantity of the guide members is adjusted by the driving of the motor. By this constitution, the meandering of the film 2 is corrected.
Patent JP-H11204322-A (JP)
Title: Dust core, its manufacture, and winding part
Inventor: CHIBA TATSUYA
IPC: H01F1/147
Filed: 1998-01-19
Abstract: PROBLEM TO BE SOLVED: To provide a dust core which is high in saturated magnetic flux density and low in hysteresis loss and residual loss, a method for manufacturing the core, and wiring parts which are high in DC superposition characteristic and low in loss. SOLUTION: A dust core, in which oxide powder is diffused in an island-like state in alloy powder which is obtained by mixing the oxide powder in an Fe-Si-Al alloy through high-frequency melting at a mixing ratio of 1-10 wt.% and quenching and grinding the molten mixture is obtained by molding the alloy powder with presence, after the alloy powder has been mixed with a binder. It is desirable that the oxide powder contain at least one kind of oxide selected from among SiO2 , CaO, Al2 O3 , ZrO2 , HfO2 , Nb2 O5 , and Cr2 O3 .
Patent JP-H03228890-A (JP)
Title: Device for growing single crystal of barium titanate
Inventor: MIMURA SHOJI
IPC: C30B15/00
Filed: 1990-02-01
Abstract: PURPOSE:To avert the contamination of a raw material melt and to obtain the single crystal of barium titanate having good optical characteristics by adopting the constitution for imposing a crucible in a quartz glass muffle and growing the single crystal of the barium titanate while heating the raw material melt in the crucible from the outer side of the muffle. CONSTITUTION:The quartz glass muffle 10, the crucible 1 which is disposed in this muffle 10, a seed rod 8 which is attached to a seed crystal 7 at the lower end part and inserted into the muffle 10 and positions a seed crystal 7 in the area right above the crucible 1 and a heating means (2: a heater, 3: a heat insulating material) which heats and holds the raw material melt 6 in the crucible 1 to and at a prescribed temp. from the outer side of the muffle 10 are provided. The single crystal can be grown while the crucible 1 consisting of the heat insulating material 3 and the heater 2, etc., is held isolated by using the above-mentioned device and, therefore, the contamination of the raw material melt by the dust and gasifying components, etc., from the heat insulating material and the heater, etc., is averted.
Patent JP-H01295400-A (JP)
Title: Terminal receiving device for prevention of disaster
Inventor: SAWAI TOSHIKAZU
IPC: G08B27/00
Filed: 1988-02-04
Abstract: PURPOSE:To instantaneously decide and grasp the state of a master station by adding a master station state detecting means and a master station state display device to a terminal receiving device. CONSTITUTION:The radio wave received via an antenna 1 is demodulated at a radio receiving part 2 and the demodulated output is supplied to a low frequency amplifying pat 3 and a calling part 5 to be selected. The part 5 sends the mute output 10 to the part 3 when the call signal of its own station is detected out of the demodulation signal 9. Thus the part 3 is actuated to amplify the signal 9 and a speaker 4 sounds. The signal 9 is connected to a master station state detecting circuit 6 concurrently with or independently of the actuation of the speaker 4. Thus the master station state signal contained in the signal 9 is detected and a master station state display circuit 7 displays the state of the master station. Thus the state of the master station can be instantaneously decided and grasped.
Patent JP-H05305716-A (JP)
Title: Dot printer head
Inventor: HORII MASAMI
IPC: B41J2/235
Filed: 1992-02-07
Abstract: PURPOSE:To provide a dot printer head which prevents detachment of any armature from an armature block, sets exactly and easily a gap between an armature and a core and permits the armature block and a yoke block to be used commonly by changing the material quality, size and shape of attaching member according to the types of the printer. CONSTITUTION:An armature block 22 is provided in combination with an attaching member 1 adapted for attachment to the carrier of a printer, a housing 5, an armature guide 10, a needle guide 9, a stopper receiver 17 and an armature stopper 18. A yoke block 27 is provided with a plurality of cores 24 wound with coils 23 and a yoke 25. The armature block 22 and the yoke block 27 are coupled together with a fastening member 3, armature stopper 18 is positioned by the stopper receiver 17 and an armature 14 is held down by the armature stopper 18.
Patent JP-S58142321-A (JP)
Title: Built-in flash emitting device by electrical discharge of camera provided with film transfer motor
Inventor: TAKEMATSU YOSHIYUKI
IPC: G03B15/05
Filed: 1982-02-17
Abstract: PURPOSE:To reduce the charging intervals of a main capacitor and to assure snap shooting performance, by starting the oscillation of a DC-DC cnverter, which uses an electric power source in common to a film transfer motor, in response to the operation of the motor. CONSTITUTION:The oscillation of a DC-DC converter is started by temporary closure of a switch 5, by which a main capacitor 7 and a trigger capacitor 10 are charged. The oscillation of the converter is stopped when the converters are fully charged. When a trigger switch 12 is turned on, flash photographing is carried out. A film transfer motor 17 starts running upon closure of a switch 18 when the photographing ends, by which a film is ejected. When the ejection ends, the switch 18 is opened and the motor 17 is stopped. The switch 5 is closed temporarily just prior to the stoppage of the motor, by which the oscillation of the converter is started. Inhibiting circuits 13-15 for light emission are provided to prohibit charging of the capacitor 10 when field brightness is at a prescribed level or above.
Patent JP-H05225445-A (JP)
Title: Price retrieval system in pos system
Inventor: WATANABE MASAKAZU
IPC: G06Q30/06
Filed: 1992-02-10
Abstract: PURPOSE:To retrieve a goods price and to perform the global management of goods information for the goods provided with plural prices. CONSTITUTION:A departmental item to store departmental information CSC, and a plural price identification item to store plural price identification information FCG are provided at a goods master file 32, and a common code for the goods provided with single price information DMG is stored as the departmental information CSC, and also, every price information DMG is stored, and one record which stores the common code as the departmental information CSC, and plural records which store the departmental information CSC are provided at the goods provided with plural pieces of price information DMG, and also, the plural price identification information FCG is stored in the record in which the common code is stored, and the price information DMG of each goods is stored in the record other than that, and first time of retrieval is performed setting goods identification information CAR and the common code as keys, and when the plural price identification information FCG is stored in hit goods, a price can be obtained by performing second time of retrieval setting the departmental information CSC as the key.
Patent JP-S55117034-A (JP)
Title: Apparatus for inhibiting rotation of rotatable part of engine
Inventor: TAKEMURA ATSUSHI
IPC: F02B77/00
Filed: 1979-02-28
Abstract: PURPOSE:To inhibit rotation of crank shaft, by fixing a ring gear formed on flywheel connected to the crank shaft by means of a holding member inserted through a hole formed in the housing. CONSTITUTION:Rotation of flywheel 5 is inhibited by threading bolt 18 into threaded hole 17 formed in housing 8 and bringing the top of bolt 18 into a trough formed between adjacent teeth of ring gear 6 formed on flywheel 5. Since, in this state, rotation of crank shaft 4 is inhibited, rotation of cam shafts 14, intermediate shaft 15, oil pump 16 and other rotatable elements is also inhibited, so that exchanging of parts and positional adjustment in respect of their turning angle can be accomplished with ease.
Patent JP-H08222766-A (JP)
Title: Plastic molded semiconductor light emitting device
Inventor: SUZUKI AKIRA
IPC: H01L33/62
Filed: 1995-02-10
Abstract: PURPOSE: To provide a plastic molded semiconductor light emitting device capable of enduring clinch stress generated on a lead. CONSTITUTION: In a plastic molded semiconductor light emitting device 20, an element mounting part 23 of a first lead 21 is equipped with a mounting flange part 27 which protrudes in the thickness direction on both side surfaces of the first lead 21, and a recessed surface part 28 formed on the upper surface of the mounting flange part 27, and a semiconductor light emitting element 24 is fixed on the recessed surface part 28 at almost the central part in the thickness direction. The top of a second lead 22 is equipped with a corresponding flange part 30 which protrudes in the thickness direction on both side surfaces of the second lead 22.  Since the mounting flange part 27 formed on the first lead 21 and the corresponding flange part 30 formed on the second lead 22 are brought into rigid and close contact with a plastic molded object 26, when clinch stress is applied, stress generated on the lead is dispersed so that cushioning action is generated.