baber/WOPTO huggingface dataset:
Patent JP-H1172027-A (JP)
Title: Exhaust gas recirculation type combined plant
Inventor: KATAOKA MATOSHI
IPC: F02C6/18
Filed: 1998-06-29
Abstract: PROBLEM TO BE SOLVED: To expand a scope of partial load operation which can be operated with high efficiency by spraying liquid droplets from a spray device to evaporate them in a compressor so as to suppress a rise of a temperature at an outlet of the compressor and increase a recirculation amount when a part of exhaust gas from a gas turbine is recirculated into an inlet of the compressor. SOLUTION: This plant is provided with a recirculation means 9 which recirculates a part of exhaust gas from a gas turbine 3 into an inlet of a compressor 1 and a recirculation amount control means 10 which controls a recirculation amount. Furthermore, a spray nozzle 11 is arranged in a suction duct of the compressor 1 to spray minute liquid droplets. Since spray of liquid droplets which vaporize in the compressor can be introduced to cool the gas inside the compressor, it is possible to raise a temperature of suction air in the compressor. That is, an exhaust air recirculation amount can be increased, and a scope of highly efficient partial load operation can be expanded. Moreover, the thermal efficiency of combined cycle total can be improved.
Patent JP-H0346278-A (JP)
Title: Photovoltaic element
Inventor: WATANABE KANEO
IPC: H01L31/042
Filed: 1989-07-13
Abstract: PURPOSE:To obtain a crystal semiconductor layer which is large in grain diameter and small in grain boundary so as to improve a photovoltaic element in photoelectric conversion efficiency by a method wherein a crystal semiconductor layer is formed on two or more insulating regions surrounded with a conductive region. CONSTITUTION:A metal conductive layer 2 is formed on an insulating substrate 1 in gridiron, crystal semiconductor layers 3 are formed so as to cover the squares of a gridiron as separated from each other on the center of the width of the conductive layer 2, amorphous semiconductor layers 4-7 of P-type, N-type, I-type, and P-type are formed on the crystal semiconductor layers 3 and the conductive layer 2 exposed between the adjacent crystal semiconductor layers 3, and a transparent electrode is built thereon. Recrystallization takes place starting from the center of the insulating substrate 1 surrounded with the conductive layer 2 toward the peripheral part through the control of the temperature of the conductive layer 2, and a grain boundary part concentrates nearly on the center of the conductive layer 2. By this setup, a photovoltaic element provided with an crystal semiconductor layer of high quality large in grain diameter and small in grain boundary can be obtained.
Patent JP-2000023512-A (JP)
Title: Right and left horizontality control apparatus for rice transplanter
Inventor: NAKA HIROKAZU
IPC: A01C11/02
Filed: 1999-06-28
Abstract: PROBLEM TO BE SOLVED: To further improve follow-up control in the right and left horizontality control apparatus of a rice transplanter. SOLUTION: In a rice transplanter equipped with a control apparatus provided with a first control means for controlling plural apparatuses 93 based on the detected result of a detector 115 for detecting the right and left inclination of a transplanting part 2 so as to make the transplanting apparatuses laterally horizontal, the control apparatus is equipped with a second control means for starting the output operation of a right and left horizontality control based on the detected result of a detector 110 for detecting whether a traveling body 1 is inclining to the right or the left so as to make the plural transplanting apparatuses 93 laterally horizontal. The control speed of the second control means is set higher than that of the first control means.  Further a detector 110 is attached to the traveling body 1 at a middle position in the longitudinal direction between the axle of front wheels 3 and the axle of the rear wheels 4.
Patent JP-H1126473-A (JP)
Title: Bipolar transistor and its manufacture
Inventor: KONDO MASAO
IPC: H01L29/732
Filed: 1997-07-08
Abstract: PROBLEM TO BE SOLVED: To reduce a tensile stress of an n-type polycrystal silicon film of an emitter by, as the polycrystal silicon film of emitter, using such of average crystal particle size of a medium particle size film within a range of specific value. SOLUTION: A medium particle size n-type polycrystal silicon film 16 is used instead of a large particle size n-type polycrystal silicon film. A film thickness of the medium particle size n-type polycrystal silicon film 16 is 150 nm, with average crystal particle size about 100 nm, while desired average crystal particle size is 40-300 nm. The medium particle size n-type polycrystal silicon film 16 is formed by deposition at substrate temperature 600 deg.C through normal chemical vapor-phase growth method, with SiH4 , PH3 as material gas. The tensile stress of an emitter film can be 200 Kpa, which is 1/5 of conventional value. As a result, the stress affecting a base region of substrate, as well as an absolute value of variation, can be about 1/5 of conventional value, with a variation in collector current value of transistor allowed to be about 1/5.  Meanwhile, the resistivity of an emitter is maintained at increase of 30% compared to conventional value.
Patent JP-S5883044-A (JP)
Title: Thermoplastic resin composition
Inventor: SAKANO HAJIME
IPC: C08L51/00
Filed: 1981-11-12
Abstract: PURPOSE:To provide the titled resin compsn. having excellent moldability and resistance to impact and heat as well as weld strength, by adding a specified plasticizer to a resin compsn. consisting of a polycarbonate resin and a diene rubber graft polymer. CONSTITUTION:20-80pts.wt. polycarbonate resin is mixed with 80-20pts.wt. mixture consisting of 100-10wt% conjugated diene rubber/arom. vinyl/vinyl cyanide graft polymer and 0-90wt% arom. vinyl/vinyl cyanide copolymer to obtain a resin compsn. 0.5-20pts.wt. plasticizer such as diisodecyl phthalate or dibutyl sebacate is added to 100pts.wt. said resin compsn. to obtain the titled resin compsn., said plasticizer having a property such that a 20mu film obtd. by dissolving 0.25g of said plasticizer and 0.75g of an acrylonitrile/styrene copolymer (30:70wt.ratio) in 10ml of acetone has a light transmittance of 70% or above.
Patent JP-S6161272-A (JP)
Title: Floppy disk device
Inventor: BABA NAOYOSHI
IPC: G11B5/012
Filed: 1984-08-31
Abstract: PURPOSE:To prevent a reading error by changing over an attenuation value only when a magnetic head with low sensitivity reads in an inner circumferential side of a disk, in a double-face recording system floppy disk device. CONSTITUTION:Analog switches 8 and 9 become on when an output of a buffer 12 is H and analog switches 10 and 11 become on when an output of an AND gate 14 is H. A switch filter signal SFL becomes H when an outer circumferen tial side track is read and the signal becomes L when an inner circumferential side track is read. A head selecting signal HDS to select a side 1 (front side) and a side 0 (rear side) of a disk and the inverting signal -HDS are inputted to a terminal S2 and a terminal S3 of a change-over switch circuit 15. For example, when sensitivity of a magnetic head of the side 1 is higher than sensi tivity of the magnetic head of the side 0, the terminal S3 and a terminal S1 are connected. Only when the magnetic head of the side 0 reads at the inner circumferential side, a signal, in which a gain controlled by a filter circuit with a lower attenuation value than that of a filter circuit 7a, is inputted to a differentiating circuit 4.
Patent JP-S6074029-A (JP)
Title: Assisting device for lisp language program learning
Inventor: KAMATA HIROSHI
IPC: G06F9/44
Filed: 1983-09-30
Abstract: PURPOSE:To allow a learner to become skilled soon of a program that the learner has prepared by himself by recognizing the logical structure of the program from a graphic form by displaying the program in a graphic pattern and allowing control at the stage of evaluation. CONSTITUTION:A program inputted from a program input part 4 is expressed by an S expression and stored in a program storage part 5 temporarily, and then an interpreter 6 performs evaluation processing successively from internal parentheses. The S expressions in respective transition states of the evaluated list are stored in an s expression evaluation transition state storage part 7 and expanded in graphic pattern form by an S expression/graphic form conversion part 8 by using an LISP cell, and the graphic pattern is stored in a graphic transition state storage part 9. A display output processing part 10 reads the respective programs out of said storage parts 5, 7, and 9 by the indication of a display indication part 3 and displays them on a display part 2.
Patent JP-H0987034-A (JP)
Title: Aluminum nitride joined structural body
Inventor: WAKAMATSU TETSUO
IPC: C04B35/581
Filed: 1996-07-11
Abstract: PROBLEM TO BE SOLVED: To obtain a joined structural body having high joining strength and hardly causing the degradation of thermal conductivity in the joined part by applying a paste essentially consisting of aluminum nitride on the joining faces of aluminum nitride green compacts and then adhering closely and sintering them. SOLUTION: A joining face of at least one or more aluminum nitride green compacts comprising an aluminum nitride powder and an org. binder is coated with a paste prepared by adding a vehicle to the same aluminum nitride powder to obtain 40-85wt.% solid density and 10000-150000cP, and is subjected to aeration. Then the green compacts are joined on the joining faces. The joined green compact is dried, degreased and sintered at 1700-1950 deg.C in a nonoxidizing atmosphere. The thermal conductivity measured through the joining part of the joining structural body is >95% of the thermal conductivity of the base body and the three-point bending strength around the joining surface is >20Kg/mm<2> .
Patent JP-S57105824-A (JP)
Title: Head for magnetic disc
Inventor: OOHASHI HIROYUKI
IPC: G11B5/60
Filed: 1980-12-23
Abstract: PURPOSE:To prevent the adsorption between a head and a disk and the damage of gap part, by providing a slider plane consisting of a coarse front plane and a smooth rear plane including gap plane so that the front and rear planes are crossed at an <=1 deg. angle. CONSTITUTION:A magnetic head 21 has a slider plane opposing to a magnetic disc plane. In the slider plane, the surface coarseness of the front plane 25 is taken as about 0.1mum Ra and that of the rear plane 26 is taken as about 0.02mum Ra, and a gap 22 is in the same plane as the rear plane. The crossing angle theta between the planes 25 and 26 is taken as about 0.1 deg.. Since the weight is exerted on the front plane at the standstill of a disk, the disc contacts with the coarse front plane and makes no adsorption, and the gap is floating. When the disc starts rotation, a positive pressure in comparison with an atmospheric pressure is exerted to the front plane and a negative pressure to the rear plane, allowing to lift up the slider front part and to lower the part near the gap. When the gap 22 approaches the disc, the distribution of pressure is uniform, the slider is stably floating, allowing to avoid damage of the gap.
Patent JP-H0931963-A (JP)
Title: Soil improvement method
Inventor: KASHIMA SHOICHI
IPC: E02D3/12
Filed: 1995-07-19
Abstract: PROBLEM TO BE SOLVED: To continuously obtain stable carbonated water, by providing a needle valve comprizing a s sliding structure of a conical valve seat face and a conical front end. SOLUTION: A confluent pipe passage 51 shaping a nearly crossed form is provided in a valve device 4 to lead water linearly in one direction. An induction passage 52 for liquid carbon dioxide gas is formed to intersect with the water stream. A truncated conical valve seat face 51A widened to the water passage side is formed at the connection part to the water passage of the induction passage 52. A needle valve 53 having substantially the same conical front end 53A with the shape of the valve seat face 51A is positioned to pierce the water passage from the opposite direction against the induction passage 52. And the front end 53A is arranged in the state that it is fitted to the valve seat face 51A. The needle valve 53 can be constituted so as to freely adjust the inserting extent against the valve seat face 51A.  The liquefied carbon dioxide flowing out or the gap between the valve seat race 51A and the front end 53A is mixed with the water stream to contact it.
Patent JP-2000081265-A (JP)
Title: Optimization of refrigerating capacity, energy efficiency and reliability of refrigeration system during temperature pull down
Inventor: LIFSON ALEXANDER
IPC: F25D11/00
Filed: 1999-06-29
Abstract: PROBLEM TO BE SOLVED: To enhance capacity and energy efficiency by providing a compressor, a load removing valve, a suction modulation valve, an economizer circuit and a controller for controlling them according to a predetermined logic thereby optimizing cooling of a cooling system. SOLUTION: A compressor 26, a condenser 28, an evaporator 30, an expansion element 32 and a suction modulation valve 34 are coupled through piping to constitute a refrigeration system 24. A load removing bypass valve 36 returns partially or completely compressed refrigerant to the suction side of the compressor and an economizer circuit 38 comprising an expansion element 40, a heat exchanger 42 and a valve 39 is provided additionally. The refrigeration circuit is controlled to operate with low regulated capacity and transits to higher regulated capacity operation mode as the time elapses and then returns back to low regulated capacity operation mode when an operating limit is exceeded during a specified time interval.
Patent JP-2000021906-A (JP)
Title: Manufacture of semiconductor chip
Inventor: NISHITAKE HIROSHI
IPC: H01L21/56
Filed: 1998-06-30
Abstract: PROBLEM TO BE SOLVED: To manufacture the semiconductor chip having the small outer dimensions through a simplified manufacturing process. SOLUTION: A gap 5 is formed between the neighboring semiconductor chips, by performing the first cutting along a scribe line SL for a wafer W stuck to a sheet S. Then, these semiconductor chips are assembled and set in a metal mold for each sheet S. Molding resin is injected, and the forming surface of a bump 4 is covered flatly with molding resin 6. At the same time, the gap 5 is filed. Then, with the mold resin layer 6 filled in the gap 5 as a mark, a second cutting using a dicing wheel DW is performed. The wafer W is again divided into individual semiconductor chips C1. The bump 4 can be used for facedown mounting intactly on the mounting substrate. No assembling whatever using a lead frame and packaging is required.
Patent JP-H0721507-A (JP)
Title: Magnetic head
Inventor: DAINO YURIE
IPC: G11B5/105
Filed: 1993-06-30
Abstract: PURPOSE:To enhance the reliability of a magnetic head by preventing the bleeding of an adhesive to the face sliding on a medium at the time of bonding a magnetic core to a core holder and to stabilize the electromagnetic transducing characteristics of the magnetic head by enhancing the bonding strength of the magnetic core to the core holder. CONSTITUTION:A magnetic core forming a closed magnetic path is held by a core holder 11 by insertion in magnetic core inserting grooves 13, 14 and fixation by bonding. At this time, grooves 15, 16 for stopping the flowing of an adhesive having a larger depth than the magnetic core inserting grooves 13, 14 in the core holder 11 are formed in parts of the grooves 13, 14.
Patent JP-H0721605-A (JP)
Title: Floating type magnetic head device
Inventor: IGARASHI SHUICHI
IPC: G11B11/10
Filed: 1993-06-30
Abstract: PURPOSE:To decrease a substantial contact area and to prevent sticking at the time of stopping and the failure of a magnetic head element for magnetic field modulation and a magneto-optical disk by specifying the surface roughness of the surface of a slider incorporating the magnetic head element opposed to the magnet optical dish within a range of the specific value of the max. height. CONSTITUTION:The slider 7 into which the magnetic head element for magnetic field modulation is incorporated is formed into a slider shape by cutting out a material substrate consisting of Mn-Zn ferrite, calcium titanate, etc. A grinding wheel to be used at this time is formed to have adequate roughness so that the surface roughness of the cut-out surface as the max. height Rmax attains 0.20mum<=Rmax<=2mum. This cut-out surface is formed as the surface 7a facing the magneto-optical disk 8 constituted by forming a recording part 5 consisting of a magnetic recording layer 3, a reflection layer 4 and a dielectric layer 2 and a protective layer 6 on a transparent substrate 1. As a result, the substantial contact area of the surface 7a of the slider 7 and the disk 8 is decreased. The sticking of both in the stopping state and the failure of the magnetic head element and the disk 8 are thus prevented.
Patent JP-S5973096-A (JP)
Title: Electric device for fur disposal
Inventor: SUZUKI TAKAHIRO
IPC: C02F1/46
Filed: 1982-10-19
Abstract: PURPOSE:To improve the ability to inhibit the formation of scale, by constituting the titled electric device for fur disposal in which an electric current is applied to an inner electrode having many through holes provided in it, while circulating water to be treated into an outer electrode, to electrolyze the fur. CONSTITUTION:An inner electrode 6 to be concentrically provided inside a tubular outer electrode 3 is formed from a member having many through holes 62 provided in it. Said inner electrode 6 is formed into a reticulate member by knitting members having a wire diameter of 1mm., for instance, to make the shapes of the through holes 62 rhomic. The inner electrode 6 may be one formed by engraving many through holes in a plate body, instead of the aforementioned one obtd. by knitting the fine wires. The inner electrode 6 may be formed of stainless steel, but preferred one is formed of a material, e.g. Ti, Nb or Ta, having a surface coated with an insulating oxide film and then coated with platinum excellent in electric conductivity and insolubility.
Patent JP-H0850017-A (JP)
Title: Apparatus for measuring flatness
Inventor: SUZUKI YUJI
IPC: G01B5/28
Filed: 1994-08-04
Abstract: PURPOSE:To provide a method and an apparatus for measuring a flatness which can shorten a measuring time greatly and reduce the operator's load. CONSTITUTION:The apparatus is constituted of a plurality of detectors A, B, C and D, a measuring jig 24 for setting the detectors A, B, C and D above a plurality of predetermined measuring points of a work 20, and a data- processing device 14 which automatically operates results detected by the detectors A, B, C and D thereby to calculate a flatness of the work 20. In this constitution, the predetermined measuring points of the work 20 set on a work table 26 or of a reference master 22 can be detected at one time, whereby a measuring time is remarkably shortened. Moreover, since detecting results at the detectors A, B, C and D are automatically operated by the data- processing device 14 thereby to measure the flatness of the work 20, the operator's load is reduced.
Patent JP-S6162058-A (JP)
Title: Picture formation method
Inventor: AKIMOTO KUNIO
IPC: G03G9/08
Filed: 1984-09-04
Abstract: PURPOSE:To prevent transfer paper from the generation of a back surface staining phenomenon and a winding phenomenon around a backup roller by forming toner images with a specific toner and heating and fixing the toner images by a heat roller/fixer having a heat roller and a specific backup roller. CONSTITUTION:A toner image is formed on a transfer material with toner obtained by containing a releasing agent consisting of wax containing at least 20wt% ester component having <=4 penetration and other necessary components in binder resin. This, the toner image is heated and fixed by the heat roller/fixer consisting of the heat roller and the backup roller arranged oppositely to the heat roller and forming a releasing coat layer having 50-90 spring hardness Hs (JIS C) on its surface to form a copied picture. Thus, fine pictures can be stably and continuously formed at a high speed many times.
Patent JP-S6429060-A (JP)
Title: Facsimile equipment
Inventor: MINOWA TAKEHIKO
IPC: H04L1/08
Filed: 1987-07-24
Abstract: PURPOSE:To reproduce an accurate image by transmitting data in respective frames including image signals respectively for a prescribed number of times, and receiving and recording the data. CONSTITUTION:An image signal inputted from a reader part 1 is encoded and compressed by an encoding and compression part 4, then stored in an image signal memory 2. The memory 2 and a control part 3 constitute a frame transmission means 200 that transmits same one-frame-length of data for a prescribed number of times respectively. On the reception side, information as to whether respective frame data is normal or not is obtained by a CRC check part 11, and correct data is thus obtained and stored in an image memory 13. A control part 12, the image memory 13, and a recording part 14 constitute a frame selection and recording means 400.
Patent JP-H09107245-A (JP)
Title: D-class amplifier with single output and two supplies
Inventor: MARUKO MASHIINI
IPC: H03F3/217
Filed: 1996-07-12
Abstract: PROBLEM TO BE SOLVED: To eliminate noise reproduction in the single output two supply class D amplifier. SOLUTION: A class D amplifier 70 is realized by an astable multivibrator stage 2 which defines signal outputs at nodes 15, 19 and supplies two state output signals to a power stage 3. An output 35 of the amplifier provides an output voltage switched between 1st and 2nd values. The duty cycle of the output voltage is changed by an input signal of the multivibrator. The amplifier is connected to 1st and 2nd supply lines which are symmetrical with respect to an earth line 13 and susceptible to the effect of received noise and has a current source 71 generating a bias current of the multivibrator and supplying a switchable current at each half cycle. The current at each half cycle is proportional to the absolute value of an output voltage of the amplifier to change the duty cycle of the amplifier in a way relating to the supply noise, resulting that the average output voltage is zero.
Patent JP-S5887013-A (JP)
Title: Continuous kneading and granulating apparatus
Inventor: SHIMIZU NOBUAKI
IPC: B29C48/52
Filed: 1981-11-18
Abstract: PURPOSE:To obtain the titled apparatus capable of extruding a large amount at high speed and improve the processing capacity, by connecting a gear pump in series to a double-screw kneader thereby the cylinder tips of the double-screw kneader are not in communication with each other at the side to form independent type cylinders. CONSTITUTION:A resin raw material charged through a feeding port 4a is melted by a screw 5, and is further melted and kneaded at a rotor section 5a, and the degree of the kneading is adjusted at a slot section 5b. The resin raw material is forced by a tip screw section 5c to a tip driving section 4d, and is fed by the gear pump 2 to a cutting apparatus 3, where it is granulated. As the cylinder is independent on the forward side beyond the slot section 4b, the occurrence of scuffing by the cylinder is substantially reduced and therefore the screw can be rotated at high speed.