baber/WOPTO huggingface dataset:
Patent JP-S57210019-A (JP)
Title: Preparation of carbon fiber
Inventor: OOYABU MIKIO
IPC: D01F9/14
Filed: 1981-06-16
Abstract: PURPOSE: To obtain carbon fibers having a strength enough for general use, by hydrogenating coal tar or its pitch under specific conditions, removing insoluble solid materials, heat-treating the coal tar or pitch in a short time, spinning the heat-treated coal tar or pitch, making the resultant fibers infusible, and carbonizing the infusible fibers.  
     CONSTITUTION: A coal tar or pitch dissolved in a hydrocarbon solvent is hydrogenated in the presence or absence of a hydrogenating catalyst at 350W470°C and 20W200kg/cm 2 .G for 5W60min, and insoluble solid materials (catalyst) and if necessary light oil are separated and removed therefrom. The resultant hydrogenated material is then heat-treated in the presence or absence of a heterocyclic compound containing nitrogen, e.g. pyridine or quinoline, at 420W650°C and 20mm Hg abs. or below or 10min and then melt spun into fibers. The resultant fibers are made infusible and carbonized. The hydrogenating catalyst is preferably a metal, e.g. iron, cobalt, molybdenum or copper, or a compound thereof. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S60235737-A (JP)
Title: Manufacture of optical fiber
Inventor: SUGAI MASAKATSU
IPC: C03B37/027
Filed: 1984-05-07
Abstract: PURPOSE:To prevent the unevenness and defect of the coated surface of an optical fiber, by reducing the pressure on the surface of the coating liquid in the coater for the primary coating, and placing a net in the liquid close to the liquid surface thereby eliminating the bubbles generated in the coating liquid in the coater. CONSTITUTION:The coating die 3 contains the coating liquid 6 to the level 10, and the glass fiber 7 drawn from an optical fiber preform is passed downward through the die 3 and coated with the coating liquid 6 to form a primary coating layer. A vacuum chamber 11 furnished with a hole to pass the glass fiber 7 is placed under the liquid level 10 hermetically with an O-ring 15, and the surface 10 of the coating liquid is evacuated by evacuating the vacuum chamber 11 with the vacuum pump 4 through the lines 12, 13. A net 15 is stretched under the surface 10 of the coating liquid to effect the spontaneous elimination of the bubbles generated in the coating liquid 6.
Patent JP-H07290667-A (JP)
Title: Laminate
Inventor: YOSHIDA TETSUO
IPC: D06N7/00
Filed: 1994-04-28
Abstract: PURPOSE:To provide a laminate in which transfer of plasticizer contained in polyvinyl chloride to a surface can be prevented when used as a wall sheet, oily dirt such as Magic ink, shoe polish, etc., can be easily removed and which has excellent embossing processability. CONSTITUTION:A laminate comprises a copolymer polyester film laminated at least on one side surface of a polyvinyl chloride base material, wherein the film is made of copolymer polyester having a melting point of 210-245 deg.C, and a thickness is 5-40mum.
Patent JP-H11288022-A (JP)
Title: Finder device
Inventor: GOTO TAKAO
IPC: G03B17/20
Filed: 1998-04-03
Abstract: PROBLEM TO BE SOLVED: To easily adjust the parallax of a finder and to prevent the infiltration of dust by switching the display pattern of plural electric display segments for forming the visual field of plural finders arranged in mutually deviated positional relation. SOLUTION: The liquid crystal segment of the LCD field frame 7 of the finder device is equipped with a segment group A consisting of segments A1 to A5 whose display surface is rectangular, segment groups B to D having the same constitutions, a segment group E consisting of the segments E11 to E55 whose display surface is square, and segment groups F to H having the same constitution. A gap between the segments adjacent to each other is extremely small and is recognized as a continuous pattern on a display. By switching the display pattern of the segments, the position of the finder field is adjusted at respective five steps in longitudinal and lateral directions. Therefore, the positions of the finder field of 25 ways are selected by the combination of the positions in the longitudinal and the lateral directions.
Patent JP-S5718756-A (JP)
Title: Improvement of moldability of polyamide
Inventor: OKADA TAKUJI
IPC: C08L77/00
Filed: 1980-07-07
Abstract: PURPOSE: To improve moldability, especially flow properties and to obtain molded articles free from bleedout without using an additive, e.g., lubricant, by blending a polyamide with a monoamine or diamine in a molten state and molding in a molten state.  
     CONSTITUTION: A polyamide is blended with 0.1W3mol% monoamine or diamine in a molten state and molded in a molten state. Preferably the monoamine or  diamine is previously added to the polyamide, which is blended in molten state  with the amine, pelletized and injection molded. The adjustment of the amount of  the monoamine or diamine to be added controls reduction in molecular weight. A  plasticizer, colorant, etc, can be used together. The use of the plasticizer, e.g.,  especially ethylene glycol, etc, is effective for improving flow properties. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H02271146-A (JP)
Title: Synchronous transmission shaft
Inventor: NAKANISHI YASUYUKI
IPC: G11B15/675
Filed: 1989-04-13
Abstract: PURPOSE:To carry out turn preventing work for a synchronous gear and slip-off preventing work by introducing the both edge parts having a flat turn preventing part and slip-off preventing part which are molded in one time through press work, into a metal mold and pouring resin. CONSTITUTION:A flat-shaped turn preventing part 21 and a slip-off preventing part 22 formed in one time by press-working the both edge parts of a synchronous transmission shaft 20. The resin is poured into the both edge parts of the synchronous transmission shaft 20 set into a metal mold, and a driving gear 23 which is formed integrally with the synchronous transmission shaft is molded. Therefore, the time necessary for the cutting work of a gear engagement part and gear installation work is reduced, and the working efficiency is improved. The synchronous transmission shaft 20 having each driving gear 23 installed at the both edge parts is inserted into an L-figure shaped opened groove 24 which is formed by cutting the edge surface of the both side walls of a frame 1, and a turning moment is transmitted to a driven gear 9.
Patent JP-H0672728-A (JP)
Title: Mold for molding optical element and its production
Inventor: TANIGUCHI YASUSHI
IPC: C03B11/00
Filed: 1993-03-29
Abstract: PURPOSE:To provide the mold having a mirror finished surface which does not generate peeling and cracking of films and has less surface defects in molding of glass. CONSTITUTION:This mold for molding optical elements is used for press forming of the optical elements consisting of glass and at least the molding surface of the base material of this mold is a mixing layer consisting of carbon and at least >=1 kinds of the elements constituting the mold. This process for production of the mold for molding the optical elements consists in forming the above mixing layer by a carbon ion beam of >=5kev ion energy. As a result, the mold having the mirror finished surface which does not generate peeling and cracking of the films and has less surface defects is obtd. The release property of the glass and the mold is extremely good if the optical elements are molded by using this mold. The molded parts having good surface roughness, surface precision transmittance and shape accuracy are obtd. over a long period of time.
Patent JP-S57206713-A (JP)
Title: Device for guiding valve moving mechanism in cylinder head
Inventor: ISOTANI KIYOSHI
IPC: F01L1/14
Filed: 1981-06-15
Abstract: PURPOSE:To simplify the structure of a cylinder head and a device for guiding a valve moving mechanism, by forming a valve lifter guide and a valve guide integrally with each other and fitting them in a valve guide securing hole. CONSTITUTION:A valve lifter guide 15 is provided so that it is continuous to the top of a valve guide 16. The valve lifter guide 15 has a cylindrical inside surface with which the peripheral surface of a valve lifter 12 is slidably in contact. Since the valve lifter guide 15 is formed separately from a cylinder head 19, its section corresponding to the valve lifter guide has no jut and no undercut part and requires no special core for casting. Therefore, fins as made in casing with a core are not produced and fin-removing work is not needed.
Patent JP-H09284371-A (JP)
Title: Latch structure of portable telephone set
Inventor: WATANABE KIMIHIKO
IPC: H04M1/11
Filed: 1996-04-15
Abstract: PROBLEM TO BE SOLVED: To cancel a problem that the surface of a portable telephone set is scratched and damaged when it is attached/detected to a case and also to facilitate an attachment/detachment operation. SOLUTION: Recessed parts 1a are provided on the side surfaces of the telephone set 1 and a case 2 having the inserting part 3 of the telephone set is provided with a latch level 5 having projected parts 5a in tip parts so as to be rotable in a horizontal direction, a coil spring 7 pressing it, slide parts 9 being vertically movable slide bar 18 attached to it and the coil spring 10 pressing the slide parts 9. When the slide parts 9 are pushed down by the telephone set 1 at the time of insertion, the slide bar 18 is removed from the latch lever 5 to be rotated and the projected parts 5a are fitted to the recessed parts 1a of the telephone set 1. When the latch lever 5 is rotated by pressing it with a finger, the slide parts 9 are projected upwards again from a base surface 8 to the inserting part 3 and the slide bar 18 is engaged with the latch lever 5 to prevent rotation.
Patent JP-H06106147-A (JP)
Title: Device for blowing off fiber waste disposed under spinning machine
Inventor: NODA YASUHIRO
IPC: B08B5/02
Filed: 1991-04-23
Abstract: PURPOSE:To shorten the period of time required for blowing off by expanding an area available for blowing-off of a blow nozzle as far as possible. CONSTITUTION:In a fiber waste blow off device under a spinning machine having a laterally rotatable blow-off nozzle 18 disposed on the floor under the spinning machine for blowing off waste of fiber forwardly, the nozzle 18 is constituted of a long-sized main nozzle 19 for blowing off compressed air from the forward end thereof and a pair of left and right auxiliary nozzles 20, 20 each extending in the lateral direction from the base side of the nozzle 19 and having blow-off ports 21, 22 on their forward surfaces and the nozzles 20, 20 are formed so as to be rearwardly inclined as the distance from the base side thereof increases toward the ends thereof.
Patent JP-H08281998-A (JP)
Title: Image forming apparatus
Inventor: KAGAYAMA SHIGERU
IPC: B41J2/385
Filed: 1995-04-18
Abstract: PURPOSE: To simply remove toner stuck to an aperture electrode and to simultaneously provide a mark which indicates the delimiter of image information. CONSTITUTION: A control voltage is applied to the control electrode 4 of an aperture electrode 1 in which many openings (apertures) 6 are formed in a column state with cloth used as the fabric textile of a clothing as a recording medium 20, the passage of charged toner 16 at each opening is controlled to record the cut pattern P of one clothing as an image. Simultaneously, a back surface electrode roller (counter electrode) 22 is raised at the position corresponding to the delimiter of the pattern P to bring the medium 20 into contact with the vicinity of the opening 6 of the electrode 1. The toner 16 stuck to the periphery of the vicinity of the opening 6 is transferred to the medium 20 to clean and simultaneously provide an end mark indicating the delimiter of the image on the medium 20.
Patent JP-H11268726-A (JP)
Title: Inner frame with cushioning function
Inventor: TERAISHI KAZUHIRO
IPC: B65D5/495
Filed: 1998-03-20
Abstract: PROBLEM TO BE SOLVED: To provide an inner frame made of paper which needs no cushioning materials, such as a plastic-molded container and sponge, used for preventing a container inserted in a box and the contents of the container from being damaged. SOLUTION: A storage part II is formed by interposing between three faces, which are side plates 2, 4, and 6, a top body plate 3 and a bottom body plate 5, which are shorter than the side plates, by making both ends of each of the side plates 2, 4, and 6 large and round to form projecting parts, by forming stoppers on the inner edges of the projecting parts, and by superimposing the side plates situated at both ends. Thus, because the top and bottom body plates 3 and 5 keep a space against the form faces by means of the projecting parts, the cushioning function improves and the need for adhesive is eliminated, and because it is made of paper, disposal after use is easy.
Patent JP-H04323895-A (JP)
Title: Thin film multilayer circuit board and its manufacture
Inventor: OZAWA TAKASHI
IPC: H05K3/46
Filed: 1991-04-24
Abstract: PURPOSE:To prevent the cracking or the exfoliation of an insulating layer which is easy to occur as the number of layers increases especially when using polyimide resin as an interlayer insulating layer for multilayer formation. CONSTITUTION:A thin film multilayer circuit board, wherein conductive wiring layers 2 and polyimide resin insulating layers 3 are laminated alternately, is constituted so that the side polyimide resin insulating layers 3 consist of the two layers of thin lower polyimide resin layers 3a excellent in adhesion and thick upper polyimide resin layer 3a of low stress and high strength. Especially, the curing of the said lower polyimide resin layer 3a is performed half at a temperature lower than the regular curing temperature, and then the application of the said upper polyimide resin layer 3b and the full curing at the regular curing temperature are performed to manufacture a thin film multilayer circuit board.
Patent JP-2000281780-A (JP)
Title: Production of polyphenylene ether excellent in melt flowability
Inventor: FUJII HIROYA
IPC: C08J3/14
Filed: 1999-03-31
Abstract: PROBLEM TO BE SOLVED: To produce polyphenylene ether which contains only a small amount of fine particles and has a specified intrinsic viscosity by mixing two aromatic compound solutions of polyphenylene ether having specified intrinsic viscosities in a specified ratio, adding methanol to the mixture, subjecting the resultant slurry to solid-liquid separation, washing the solid separeted, and drying it in an N2 gas stream. SOLUTION: A phenolic compound is subjected to oxidative polymerization in the presence of an aromatic compound solvent, a copper compound, and an amine to produce polyphenylene ether (A) having an intrinsic viscosity of 0.15-0.39 and polyphenylene ether (B) having an intrinsic viscosity of 0.40-0.65. Thus obtained aromatic compound solutions are mixed in a ratio of A/B of (5/95)-(95/5), and methanol is addd to the resultant mixture to form a slurry. The slurry is subjected to solid-liquid separation, and the obtained polyphenylene ether particles are washed with methanol and dried continuously in a nitrogen stream to give polyphenylene ether having an intrinsic viscosity of 0.3-0.6. Preferably, the solvent contains xylene and/or toluene in a concentration of 50% or higher.
Patent JP-2000287316-A (JP)
Title: Ground switching device
Inventor: YAMAUCHI HIROYUKI
IPC: H02B1/16
Filed: 1999-03-31
Abstract: PROBLEM TO BE SOLVED: To pertorm megger measurement and pressure tests with only one switching device by arranging a ground terminal built in the ground switching device, a non-grounded terminal, and a megger and pressure test terminal respectively in a horizontal direction, and forming a movable rod built in the ground switching device out of a common rod as an insulation part and a conductive part. SOLUTION: A ground terminal 1, a non-grounded terminal 2, a megger measurement and pressure test terminal 3 are arranged at a ground switching device fixing part respectively in a horizontal direction to form a ground switching device. A ground switching device movable part has such a structure that part of a common movable rod 11 is an insulation part and a part thereof is a conductive part, which moves the movable rod 11 horizontally. It is thus possible to perform operating condition, ground condition, megger measurement and pressure tests with only one switching device, thereby eliminating use of dedicated test apparatuses and troublesomeness at the time of tests.
Patent JP-H07279419-A (JP)
Title: Assembling method of column neck form of pc column-beam connection section
Inventor: ARASAWA SEIICHI
IPC: E04G13/02
Filed: 1994-04-07
Abstract: PURPOSE:To improve the accuracy of placing and reliability together with the rigidity of a column-neck form section and the performance of assembly by a press-contact and fixing by a form extending section extended to the column-neck form section and a series of reinforcing ribs and crosspieces. CONSTITUTION:Form extending sections 2 having the same shape as column- neck form sections 1 are formed on the lower sides of the column-neck form sections 1 and series of reinforcing ribs 3a are protruded from at least both side edge sections, and the column-neck form sections 1 are arranged to the column corner sections 21b of a connection section and the form extending sections 2 are disposed at the column corner sections of the PC column 21 on the lower side in the PC column and beam connection section. The reinforcing ribs 3a of the column-neck form sections 1 are held down by crosspieces 6 bolted 5 to the end sections of PC beams 22, and brought into press-contact and fixed to the side faces of the PC beams 22. The reinforcing ribs 3a of the form extending sections 2 are held down by the crosspieces 6 bolted 5 to the upper section of the PC column 21, and brought into press-contact and fastened to the side face of the PC column 21.
Patent JP-H09281947-A (JP)
Title: Printed picture making method and device
Inventor: KURASHINA HIROYASU
IPC: B41J5/44
Filed: 1996-04-15
Abstract: PROBLEM TO BE SOLVED: To easily make desired printed picture data without preparing various kinds of reference picture data such as font data of characters or the like, graphic data different in thickness and roundness of a line, or the like. SOLUTION: This is a printed picture making method making printed picture data in which a printed part is expressed by the positive dot and a blank part is expressed by the negative dot, when it is developed in dot matrix, reference picture data constituted so as to be able to express a reference picture is read out from a storage part by a pixel dot group. Next, the reference picture data is developed in dot matrix, developed picture data expressing the reference picture is made (S5, S15, S25). Next, displaced picture data in which developed picture data is shifted with a dot as unit, is made, and the printed picture data is made by superposing the developed picture data and the displaced picture data (S6, S16).
Patent JP-H06298361-A (JP)
Title: Wafer transfer device
Inventor: TSUBOTA KAZUYA
IPC: B65G51/00
Filed: 1993-04-20
Abstract: PURPOSE:To transfer a wafer in super-pure water without exposing it to the air, and transfer the wafer in a sheet shape without generating any super-pure water bacteria. CONSTITUTION:The super-pure water 2 is stored in a duct 1, and a wafer is placed on a float 4 immersed in the super-pure water. The float 4 holds the wafer 3 in the super-pure water 2, and its water part floats in the super-pure water. At the position of a wafer handling device 10, a stopper 6 stops the float 4 for wafer processing, and the wafer is placed on the float 4 again. When the stopper 6 is removed, the wafer is transfered in an arrow direction 5 together with the super-pure water.
Patent JP-H11289336-A (JP)
Title: Multiple function exchange and bus setting method using the same
Inventor: ASAKURA JUNJI
IPC: H04L47/43
Filed: 1998-04-06
Abstract: PROBLEM TO BE SOLVED: To enable mutual communication between different kinds of terminals contained in each system and to allow only a multi-function exchange to provide data communications including low-speed sound communication upto high-speed, high quality data transmission. SOLUTION: This device is composed of a main device equipped with an ATM cell relay system switch 10 and a control part 20, plural terminal interface units 11 to 15 contained in the main device, and plural line interface units 16 to 19, wherein at least one ATM buses 22 are connected to the terminal interface. As a control signal path between the terminal interface units 11 to 15, the line interface units 16 to 19 and the control part 20, a permanent virtual circuit(PVC) is provided, and a private cell by way of the PVC controls the interface units 11 to 19.
Patent JP-H06310707-A (JP)
Title: Semiconductor device
Inventor: MATSUMURA KOJI
IPC: H01L21/331
Filed: 1993-04-20
Abstract: PURPOSE:To provide a hot electron transistor in which electrons can arrive at the collector positively with no energy loss even if the electrons are subjected to diffusion in the base region. CONSTITUTION:A semiconductor superlattice layer (GaAs/In0.15Ga0.85As superlattice layer) 15 having more than one miniband spaced apart by minigaps is employed in the base 2. The miniband on the high potential energy side serves as a channel connecting the emitter 3 and the collector 1 whereas the miniband on the low potential energy side is coupled directly with the base electrode in order to apply control voltage thereto.
Patent JP-H02275287-A (JP)
Title: Sealing device for sintering machine
Inventor: TANAKA KUNIHIRO
IPC: F27B21/08
Filed: 1989-04-14
Abstract: PURPOSE:To keep even a little leakage of wind from flowing into a windbox by providing a plurality of seal members on the underneath face of a pallet and a seal chamber that communicates with the spaces among the plurality of seal members and an independent air discharge fan which draws air from the seal chambers. CONSTITUTION:A device 60 of rotating roll type is constituted of rolls (seal members) 62 with a plurality of seal plates and seal chambers 66 below the rolls 62. With the roll 62 with the seal plates the seal plates 82 make a tight contact with the lower face of a pallet. Further, the ends of wires 88 at the side of the roll 62 with the seal plates make a strong contact with the inner face of the chamber 66. The rolls 62 with the seal plates in this state are rotated at a high speed by an electric motor 68 through a driving and transmission system such as a chain 70, sprocket, etc. The roll 62 is rotated at a high speed in the direction 104 opposite to the direction 102 in which the outside air flows in. With this arrangement the outside air which attempts to flow into a windbox 12 is provided from advancing and it is discharged in the opposite direction.
Patent JP-H08319366-A (JP)
Title: Foaming colored resin particle and production thereof
Inventor: NISHIGUCHI TAKESHI
IPC: C08J9/18
Filed: 1996-03-22
Abstract: PURPOSE: To obtain foaming colored resin particles which comprise a styrene resin, an aromatic hydrocarbon, a specific dye and a foaming agent and are useful as a colored transportation or package container because of their excellent tinting uniformity, dyeing fastness, moldability and the like. CONSTITUTION: The objective foaming colored resin particles contain, (A) a styrene resin, for example, a graft polymer prepared by grafting 0.5-5 pts.wt. of a styrene monomer to 1 pt.wt. of an olefin resin, (B) an aromatic hydrocarbon such as benzene, toluene, xylene or ethylbenzene, (C) an anthraquinone or perinone dye having a solubility of more than 0.1g/100ml of the component B, and (D) a foaming agent such as propane, (iso)butane, (cyclo)pentane.