baber/WOPTO huggingface dataset:
Patent JP-H03241015-A (JP)
Title: Acrylic-based hollow carbon fiber and production thereof
Inventor: MATSUHISA YOJI
IPC: D02J13/00
Filed: 1990-02-16
Abstract: PURPOSE:To obtain the subject fiber having low apparent specific gravity and high specific strength and useful as a primary structural material for aircraft by subjecting a fine hollow acrylic fiber to fire-resisting treatment in an oxidizing atmosphere at a specific temperature and carbonizing in an inert atmosphere at high temperature. CONSTITUTION:A hollow acrylic fiber (preferably having a hollowness of 10-30%) having a single fiber fineness of <=1.5 denier is subjected to flame- resisting treatment in an oxidizing atmosphere at 200-300 deg.C and then carbonized at >=1000 deg.C (preferably 1200-1600 deg.C) to obtain the objective fiber having a hollowness of 4-40% and a tensile strength of >=350kg/mm<2>.
Patent JP-S60181155-A (JP)
Title: Thermoplastic resin composition having improved wear resistance
Inventor: ISHII SATOSHI
IPC: C08L35/00
Filed: 1984-02-28
Abstract: PURPOSE:A thermoplastic resin composition having improved wear resistance and extremely improved chemical resistance, containing an aromatic vinyl unsaturated dicarboxylic acid imide copolymer and a fluorine-contained resin. CONSTITUTION:A thermoplastic resin (e.g., ABS, nylon 6, etc.) composition containing (A)>=15wt% copolymer having 35-75wt% aromatic vinyl monomer and 25-65wt% unsaturated dicarboxylic acid imide derivative, and (B) 1-40wt% fluorine-contained resin (preferably in a powdery state, having <=100mu average particle diameter). The copolymer A is obtained by copolymerizing the aromatic monomer (e.g., styrene, etc.) with an unsaturated dicarboxylic acid anhydride (e.g., aniline, etc.), and imidating the copolymer at 80-350 deg.C.
Patent JP-2000235158-A (JP)
Title: Fitting structure for mirror
Inventor: MAEDA TERUO
IPC: G02B7/198
Filed: 1999-02-16
Abstract: PROBLEM TO BE SOLVED: To provide the fitting structure of a mirror by which the function of an optical scanner can be maintained without exchanging the whole of the optical scanner even when dust is attached to a pickup mirror. SOLUTION: When the toner dust is attached to the reflection surface W1 of the pickup mirror 32 incorporated in an optical box 16a arranged in the optical scanner, the mirror 32 is pushed up almost vertically to a scanning surface along a guide surface 61 by screwing an adjustment screw 44 in a screw hole 42 so that the reflecting angle of a laser beam is not changed. By the screwing of the screw 44, a leaf spring 36 is pushed up by the upper part of the mirror 32. Due to that, the spring 36 is guided by a guide pin 40 and pushed up within the limit of the length of the long diameter of a guide hole 38. As the result, the mirror 32 does not get out from a mirror holder 34 and the different reflection surface W2 thereof hidden in the holder 34 is newly exposed.
Patent JP-S58156642-A (JP)
Title: Oil-pressure circuit for excavator
Inventor: YAGIYUU TAKASHI
IPC: E02F9/22
Filed: 1982-03-11
Abstract: PURPOSE:To reduce the amount of return oil as well as save the consumption of energy by a method in which an oil path closing means to interrupt the supply of pressure oil to the rod side oil chamber of a cylinder from a direction switch valve is provided, and a bypass through which pressure oil coming from an oil-pressure pump flows to a tank at the switching position on the contraction side of the cylinder is provided to the direction switch valve. CONSTITUTION:In the case of boom lowering, a signal is generated in a pilot pressure signal circuit (f), by which direction switch valves 33 and 20 for boom are switched to a switching position Y on the contraction side of a cylinder. Also, pressure oil from the main oil pressure pump 10 returns as it is to a center bypass 35 through a bypass 36 and flows toward a tank. Then, only the pressure oil of the main oil pressure pump 11 is supplied to the rod side oil chamber 2A of the boom cylinder 2 through the direction switch valve 20 for boom, and return oil from the bottom side oil chamber 2B is dividedly flowed to the direction switch valves 33 and 20 for boom and returned to the tank. By this, the consumed electric power of the main oil pressure pump 10 can be reduced.
Patent JP-H02215127-A (JP)
Title: Treatment device for semiconductor substrate
Inventor: TSUJI MIKIO
IPC: H01L21/304
Filed: 1989-02-16
Abstract: PURPOSE:To process semiconductor substrates and thin films thereon avoiding any pollution by a method wherein a chemical vapor producing mechanism, a steam producing mechanism and a semiconductor substrate drying mechanism are provided. CONSTITUTION:NH3 solution is fed to the bottom of a processing chamber 1 and then heated by a heater 3. O3 is led into the chamber 1 from an O3 producer 4 through a filter 5 and then semiconductor substrates 7 are processed in NH3 vapor. After processing the semiconductor substrates 7 for specified time, NH3 2 is drained through a drain pipe 4. Immediately after the drainage, steam is led in from a steam producer 10. A part of the steam aggregates on the surface of the substrates 7 and then any water soluble pollutant remaining on the surface is removed. Next, the substrates 7 are dried up by lamps 11. Through these procedures, using the NH3 vapor, any fine grains initially contained in chemicals and the pollutant are prevented from adhering to the substrates 7 while enabling the substrates 7 to be processed evenly in detail as well as to be dried up evenly till the inside of grooves. As for the chemical vapor, HF vapor, HCl, HNO3 vapor containing O3 are applicable while the substrates 7 may be dried up with microwave irradiation.
Patent JP-S56133052-A (JP)
Title: Electric dust collector
Inventor: MASUDA SENICHI
IPC: B03C3/51
Filed: 1980-03-24
Abstract: PURPOSE: To collect dust with high electric resistance at a high dust collecting ratio always by applying DC high voltage between a dust collecting electrode and a discharge electrode so as to make a value thereof zero intermittently and periodically for a short time as high voltage.  
     CONSTITUTION: The dust entered into a space between the discharge electrode 6 and the dust collecting electrode 5 in a main casing body 1 from an inlet 2 is negatively charged by the impingement of negative ion generated by negative corona discharge from the discharge electrode 6 and adhered onto the dust collecting electrode 5 by coulomb force and fallen into a hopper 10 by hammering said dust collecting electrode mechanically to be discharged externally from a discharge port 4.  The purified gas is discharged to a stack from an outlet 3 bus, in this case, when inverse ionization is generated at the electric resistance of 10 11 Ω-cm or more, the widening of the inverse ionization is controlled by the operation for making main voltage zero for short time and the good dust collecting ratio is maintained always. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S57152299-A (JP)
Title: Ultrasonic cable transmitter and receiver
Inventor: YASUDA ETSUROU
IPC: B06B1/06
Filed: 1981-03-16
Abstract: PURPOSE: To prevent the entitled device from stay of waterdrops and to measure a near object by inserting a flat bottom plate of a funnel-shaped metallic body between 2 piezo-electric elements constituting a bimorph cell.  
     CONSTITUTION: A bimorph cell is constituted by combining 2 piezo-electric elements 11, 12. The flat plate part 13a of a funnel-shaped thin metallic body 13 is inserted between these piezo-electric elements 11 and 12 and the element 11 is sticked to a terminal board 8 with elastic adherent 17. In the configuration, even if waterdrops enter into the cylindrical part 13b of the metallic body 13, the entered water flows down to the external by attaching the ultrasonic cable transmitter/receiver downwards or sideways. Several resonace points appear by the frequency characteristics of the ultrasonic cable transmitter/receiver, indicating a comparatively flat sensitive characteristic. When an electric signal is removed, these resonance points are damped each other and the damping oscillation is shortened, making it possible to measure a near object. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S56134362-A (JP)
Title: Position signal generating circuit for magnetic disk device
Inventor: HATSUTORI TOSHIAKI
IPC: G11B21/10
Filed: 1980-03-26
Abstract: PURPOSE:To expand a range where a magnetic head is led onto the target track, by forming plural position signals from two-phase servo-information from the servo- head, and selecting a position signal in accordance with a command signal of the target track. CONSTITUTION:The servo-information detection part 60 generates signals A-D which are periodically varied in accodance with the position of the servo-head 20, generates position signals E-H which are out of phase by 90 deg. each in accordance with said signals A-D, and sends them out to the selective part 70. In case when a signal EVEN becomes high and the target track is an odd track, the selective part 70 selects and outputs one of the signals F, H in accordance with the polarity of the signal E or G, and also in case when the signal EVEN becomes low and the target track is an even track, the selective part 70 selects and outputs one of the signals E, G in accordance with the polarity of the signal F or H. The range where leading-in can be made is expanded by using this output position signal M.
Patent JP-H11231181-A (JP)
Title: Spacer for optical fiber cable
Inventor: OSHIMA MUNEAKI
IPC: G02B6/44
Filed: 1998-02-19
Abstract: PROBLEM TO BE SOLVED: To improve the loss temperature variation characteristics of an optical fiber cable by widening the gap between a coated optical fiber and a pressure winding put in a slot without impairing the strength of the spacer by narrowing the gap size between mutually adjacent slots. SOLUTION: The spacer 14 is used for a spacer type optical fiber cable having a standing direction Z or S and has spiral slots 13 for housing coated optical fibers 12 embedded in its outer peripheral surface at equal intervals; and the perpendicular N bisecting the width W of its bottom surface 18 crosses the bottom surface 18 at right angles and has an offset to a diameter line L extending to the axial center C of the spacer 14 on one side of the spacer 14 in the circumferential direction.
Patent JP-S62196542-A (JP)
Title: Air-conditioning capacity control device for air-conditioning machine
Inventor: UEMURA YOSHIYUKI
IPC: F24F11/02
Filed: 1986-02-22
Abstract: PURPOSE:To keep air-conditioning capacity in a proper value substantially in spite of the change of atmospheric temperature and improve comfortable property in respective rooms by a method wherein the capacity control of a compressor, which is effected in accordance with the number of operating sets of indoor machines, is corrected in accordance with the atmospheric temperature. CONSTITUTION:A capacity changing means 31 is controlled by a capacity control means 56 in accordance with the number of operating sets of indoor machines so that the capacity of a compressor 1 is adjusted to a value in accordance with the number of operating sets of the indoor machines. The capacity control of the compressor 1, which is effected by the capacity control means 56, is corrected under this condition by a correcting means 57 in accordance with an atmospheric temperature while the capacity of the compressor is corrected so as to be reduced in accordance with the increase of the heat amount radiating efficiency of an outdoor machine when the atmospheric temperature becomes low during cooling operation to restrain the increase of air-conditioning capacity whereby the air-conditioning capacity is kept in a proper value substantially. On the other hand, the capacity of the compressor is corrected so as to be reduced in accordance with the increase of the heat amount absorbing efficiency of the outdoor machine to restrain the increase of the air-conditioning capacity when the atmospheric temperature is increased during heating operation whereby the air- conditioning capacity may be kept in a proper value.
Patent JP-H06252610-A (JP)
Title: Irreversible circuit element
Inventor: KAMEI KOJI
IPC: H01P1/36
Filed: 1993-02-26
Abstract: PURPOSE:To obtain a small sized irreversible circuit element. CONSTITUTION:A center conductor 2 of a predetermined form is provided on a square substrate 1. Two ferrite discs 4 to cover a center crossing section of the center conductor 2 are adhered to both sides of the substrate 1 concentrically. A chip capacitor 12 of a right angled triangular prism is mounted to three corners of the substrate 1 so that its slope is opposite to a circumferential face of the ferrite disk 4. Since the capacitors are mounted with higher density than the case with conventional chip capacitors of rectangular prism, the size of the square base is made small, then the irreversible circuit element is made small in size and light in weight and the required mount area is reduced.
Patent JP-H03240746-A (JP)
Title: Production of o-alkoxyphenols
Inventor: MATSUOKA KAZUYUKI
IPC: B01J23/60
Filed: 1990-02-19
Abstract: PURPOSE:To economically obtain the title compounds from benzenes through partial hydrogenation, oxidation, alkoxylation, dehydrogenation, the dehydrogenation of by-products and hydrogen circulation during which part of the hydrogen produced in the dehydrogenation process is circulated to the above partial hydrogenation process. CONSTITUTION:a) Benzenes are partially hydrogenated into the corresponding cyclohexenes, and b) these cyclohexenes are oxidized into the corresponding cyclohexene oxides. Subsequently, c) these oxides are reacted with an alcohol into the corresponding o-alkoxycyclohexanols, and d) these alkoxycyclohexanols are dehydrogenated into the corresponding objective compounds. Furthermore, e) the cyclohexenes formed as by-products in the process a are dehydrogenated to return to the benzenes, at the same time, f) part of the hydrogen produced in both the processes d and e is circulated to the process a. Thereby, through the mediation of the hydrogen in the system, not only hydrogen is not fed freshly as a raw material, but also, on the contrary, combined production of hydrogen useful as an industrial raw material is performed, thus enhancing economy and advantageously obtaining the objective compounds useful as the raw materials for pesticides and medicines from the benzenes.
Patent JP-S57153158-A (JP)
Title: Heat pump device utilizing underground water as heat source
Inventor: MIKATA KENZOU
IPC: F25B27/00
Filed: 1981-03-18
Abstract: PURPOSE:To improve the capacity of air-conditioning as well as heating and supplying of hot-water mainly in summer and increase the utilizing value of the heat pump utilizing the underground water heat-souce remarkably by a method wherein a suction pipe and a discharging pipe for a heat-source side heat exchanger are provided in a sucking and a returning well through a switching valve and the switching valve is switched over as necessity calls. CONSTITUTION:In case hot-water is to be supplied in summer, relatively warm water is introduced from the returning well 15 into the heat-source side heat exchanger by a water feeding pump 13 by switching the switching valve 24 and thereby increasing a heat capacity absorbed by a load-side heat exchanger and improving the heating capacity thereof. Water, absorbed the heat thereof and having a low temperature, is returned to the sucking well 11 upon heating and the water temperature of the sucking well 11 is lowered gradually in depending on the water capacity of the sucking well 11, however, cold water is pumped from the sucking well 11 upon the air-conditioning operation of next time by switching the switching valve 24, therefore, it enables to absorb a great deal of heat capacity from the heat-source side heat exchanger and thereby increasing the air-conditioning capacity thereof.
Patent JP-S61216319-A (JP)
Title: Manufacture of semiconductor device
Inventor: OSAKA SHIGEO
IPC: H01L21/3065
Filed: 1985-02-27
Abstract: PURPOSE:To produce the impurity refractive index waveguide stripe laser while forming a fine diffused region with excellent precision by a method wherein three processes i.e. back sputtering, SiO2 sputtering and CVD SiO3N4 are combined with one another. CONSTITUTION:A parallel plate type plasma etching device 1 composed of two each of flat plate type electrodes 2, 3 and a laser forming wafer 4 mounted beneath the lower electrode 3 is charged with Ar gas and impressed with high frequency power to produce plasma between two electrodes 2 and 3 for etching process. Firstly an SiO2 (brazing layer) 8 1,000Angstrom -1,500Angstrom  in thickness is sputtered on the substrate 4 (wafer 4) assuming an SiO2 on the electrode 2 as a target without taking a specimen out of the same plasma etching device 1. Secondly the specimen taken out of the sputtering device 1 is fed to a CVD reactor wherein Si3N4 9 is bonded on the surface of sputtered SiO2 8 by thermal cracking reaction of monosilane (SiH4) and ammonia (NH4). Finally a window is opened through SiO2+Si3N4 thus formed by photoetching process. A pattern for semiconductor laser is stripped 1.2-1.5mum in width.
Patent JP-H05240360-A (JP)
Title: Variable throttle valve
Inventor: SUMIYOSHI MASAYUKI
IPC: B62D5/07
Filed: 1992-02-25
Abstract: PURPOSE:To provide a specific throttle characteristic by coaxially providing a spool forming a first variable throttle with an annular groove of an inner hole of a joggling of a valve body, and a poppet forming a second variable throttle on a tapered hole of the spool. CONSTITUTION:A variable throttle has a spool 12 assembled into a large diametral part of an inner hole 11c of a joggling of a valve body 11, and the spool has a circular hole 12b in the diametral direction forming a first variable throttle S2 with an annular groove 11d in the intermediate part. The spool 12 is energized in the right by a first spring 13. A poppet 15 is assembled into a small diametral part of the inner hole 11c of the valve body 11, and the poppet has a tapered part 15a forming a second variable throttle S2 with a tapered hole 12a of the spool 12 in the right end, and the poppet is engaged with a plunger 18 pressed by an electromagnetic actuator, and is energized in the right by a second spring 16.
Patent JP-S56134473-A (JP)
Title: Unit cell for fuel cell
Inventor: KURAMOTO HITOSHI
IPC: H01M8/02
Filed: 1980-03-25
Abstract: PURPOSE:To improve the life by reducing the flow sectional area from the upper stream to the down stream so that a fluid oxidizing agent and fuel touch with the back of electrode evenly. CONSTITUTION:A fuel cell device is constituted by layer-building a plurality of unit cells X. The unit cell X is provided on both side of a matrix 1 impregnated with an electrolyte and constituted of porous metal, electrodes 2, 3 to which a catalyst is added are provided, and plates 4, 5 are provided on back sides of both electrodes 2, 3. A groove 16 is provided on electrode side surfaces of the plates 4, 5 to serve as flow paths Y, Y' for a fluid fuel and fluid oxidizing agent. The groove 16 provided on the plates 4, 5 is formed so that the flow sectional area of the groove is decreasing from the fluid inlet P i.e. upper stream side to the outlet Q i.e. down stream in a prescribed proportion to even a partial pressure of the reaction gas and to even the catalytic reaction throughout the electrodes 2, 3.
Patent JP-S56133883-A (JP)
Title: Photoelectric transducer
Inventor: HAMAKAWA YOSHIHIRO
IPC: H01L25/04
Filed: 1980-03-24
Abstract: PURPOSE:To improve the optoelectro energy conversion efficiency of a photoelectric transducer by repeatedly piling P type and N type semiconductors and photoelectric semiconductor materials in a specific order. CONSTITUTION:A photoelectric semiconductor layer 7 is bonded between the first P type and N type semiconductor layers 1 and 4, and a photoelectric semiconductor layer 8 is bonded between the first N tupe semiconductor layer 4 and the second P type semiconductor layer 2. Then, photoelectric semiconductor layers 9, 10 and 11 are successively bonded between the second P type semiconductor layer 2 and the second N type semiconductor layer 5, the second N type semiconductor layer 5 and the third P type semiconductor layer 3, and the third P type semiconductor layer 3 and the third N type semiconductor layer 6, respectively, to form multilayer films. In addition, layers are moreover formed by repeating such order.
Patent JP-S63205141-A (JP)
Title: Catalyst for purifying exhaust gas
Inventor: ETO YOSHIYUKI
IPC: B01J23/42
Filed: 1987-02-23
Abstract: PURPOSE:To efficiently purify HC, CO and NOx, by forming an exhaust gas purifying catalyst by supporting Pt or Pt and Rh being a catalytically active metal by the first coating layer of a carrier and supporting Pd and Rh by the second coating layer thereof. CONSTITUTION:An activated alumina carrier and cerium oxide are mixed with a nitric acid acidic bohemite alumina sol and the resulting mixture is ground to obtain a slurry which is, in turn, applied to the surface of a monolithic carrier base material based on cordierite. After drying, the coated base material is baked at 650-850 deg.C and, subsequently, Pt or Pt and Rh is supported by the carrier and the supported carrier is baked at 550-750 deg.C to form the first coating layer. Next, the second coating layer, wherein pores having a pore size peak of 500-1,000Angstrom  are imparted to a coating layer consisting of activated alumina having a pore size peak of 100Angstrom  or less, rare earth metal oxide and zirconium oxide and Pd and Rh are supported by said coating layer, is formed on the first coating layer.
Patent JP-H04258357-A (JP)
Title: Structure for joining sprues of injection sleeve pouring hole and pouring hole block of horizontal die casting machine
Inventor: KUBOTA MASAMITSU
IPC: B22D17/30
Filed: 1991-02-07
Abstract: PURPOSE:To reduce the trapping of air and to prevent the deterioration of products by miniaturizing the structure of the pouring hole block to be joined to the pouring hole of the injection sleeve, inserting it within the thickness of the fixed die plate, approaching the pouring hole to the fixed die side and shortening the injection sleeve. CONSTITUTION:The pouring hole block 19 attached in the case 23 as one body like rotates the adjusting shaft 28 which is fitted in the groove of the guide shaft 25 fitted in the centering hole of the case and penetrated through. The wedge block 30 screwed to the adjusting shaft is moved and adjusted while being slided in contact with the surface of the case, and the packing 22 is fitted in the annular seat 18 of the recessing part of the injection sleeve pouring hole 16 and pressed and seated, these are the joining structure. Because the position of the pouring hole can be received within the thickness T of the fixed die plate, the injection sleeve 10 can be shortened and the molten metal filling rate is improved. Therefore, the air space volume upper side of the surface of molten metal when the molten metal is poured in the injection sleeve is made small and the air volume is reduced, the air trapping mixing can be reduced and the deterioration of the quality of products can be prevented.
Patent JP-H10242103-A (JP)
Title: Wafer treating apparatus
Inventor: UEHARA FUMIO
IPC: H01L21/02
Filed: 1997-02-21
Abstract: PROBLEM TO BE SOLVED: To reduce the contamination of a wafer with particles and uniformly treat the wafer by perfectly dipping the wafer in a treating liq., rotating the wafer on its axis off from just under the gravitation center of the wafer, and feeding an ultrasonic wave to a treating tank. SOLUTION: For treating a wafer 40, it is dipped in a treating liq. filling a wafer treating tank 10 having a depth enough to perfectly dip the wafer, and ultrasonic tank 30 is disposed in a lower part of the tank 10 to transmit an ultrasonic wave to the tank 10. The tank 30 contains an adjuster 32 to optimize the ultrasonic wave to be fed to the wafer 40, thereby rotating the wafer with a wafer rotator disposed below the wafer and moved up and down. This efficiently transmits the rotation torque and ultrasonic wave to the wafer 40.