baber/WOPTO huggingface dataset:
Patent JP-H04186734-A (JP)
Title: Manufacture of semiconductor device
Inventor: MATSUO MINORU
IPC: H01L29/78
Filed: 1990-11-20
Abstract: PURPOSE:To enable an ion implantation device without a mass analysis system to be used for producing a thin-film transistor on a large area by securing a withstand voltage at a gate insulation film of the thin-film transistor and a channel part easily. CONSTITUTION:A non-doped polycrystal silicon 103 is deposited on an insulation film 102 and is subjected to patterning and then a silicon oxide film 104 is deposited as a first gate insulation layer using the CVD device. Then, a silicon oxide film 105 is deposited as a second gate insulation film. Then, a polycrystal silicon 106 including phosphor is deposited, is subjected to patterning, only silicon oxide film is eliminated, an impurities ion 107 is implanted at an energy of 60KeV from a plasma with an H2 gas including 5% PH3 as a raw material having a gate electrode as a mask, a source/drain part 110 is formed in self- aligned manner, and is annealed at 450 deg.C, to enable impurities to be activated. An interlayer insulation film 108 is formed and a contact hole is opened at a source/drain region and then an electrode is wired by A1.
Patent JP-S63168854-A (JP)
Title: Optical head
Inventor: MATSUI TSUTOMU
IPC: G11B7/135
Filed: 1986-12-29
Abstract: PURPOSE:To surely form beams without increasing the length of an optical path by providing a beam forming optical system consisting of a pair of concave and convex cylindrical lenses and a triangular prism on an optical path set in the projecting direction of the laser beam. CONSTITUTION:The laser beam radiated from a semiconductor laser 11 and scattered in the different directions are turned into circular beams via a pair of concave and convex cylindrical lenses 13 and 15 and a triangular prism 14. Both lenses 13 and 15 are moved in parallel to their optical axes for correction of the astigmatism of the laser light. While the prism 14 is turned round a vertical axis to change the incident angle of the laser light to the prism 14. Thus the beam gradient is corrected. Therefore it is possible to simply and surely correct both the astigmatism and the gradient of the laser light at a time as soon as the beams are formed by the fine control of both lenses 13 and 15 and the prism 14.
Patent JP-H05112023-A (JP)
Title: Thermal head and manufacture thereof
Inventor: FUKAGAWA HIROKO
IPC: B41J2/335
Filed: 1991-11-29
Abstract: PURPOSE:To obtain a thermal head wherein the thermal conductivity of an underglaze layer is decreased and smooth of the surface is ensured and the printing efficiency is remarkably improved and reduction of power consumption is made possible. CONSTITUTION:The subject thermal head consists of an underglaze layer 3 set on a base sheet 2, the first porous glass layer 3a contg. displacement air bubbles, the second glass layer 3b having a softening temp. which is at least the same temp. as that of the first glass layer 3a and at most the decomposition temp. of the foaming agent and the third glass layer 3c with a softening temp. being 20-100 deg.C lower than that f the first glass layer 3a all consisting the underglaze layer 3, a resistance element 4 set on the underglaze layer 3, electrode conductive bodies 5 and 5a and an overglaze layer 6.
Patent JP-H07142498-A (JP)
Title: Semiconductor device and fabrication thereof
Inventor: YAMAZAKI TORU
IPC: H01L21/8222
Filed: 1993-11-22
Abstract: PURPOSE:To shorten the fabrication process without increasing the collector resistance of a bipolar transistor by filling contact the holes reaching the collector diffusion region, the base lead-out region, and the emitter region, respectively, with the same metal or metal silicide. CONSTITUTION:In a bipolar transistor comprising a collector 4 of one conductivity type, a base 7 of opposite conductivity type, and an emitter 12 of one conductivity type provided on a semiconductor substrate 1, a contact hole 101 of emitter electrode layer reaching the emitter region 12 is filled with an emitter electrode layer 11, i.e., polysilicon. A collector trench 100 for forming a collector diffusion layer 10 is filled with interlayer insulating layers 13, 14 and contact holes 102c, 102b, 102e reaching the collector diffusion region 10, base lead-out region 8 and emitter region 12, respectively, are filled with the same metal or metal silicide 16. The contact hole 102c reaching the collector diffusion region 10 is made deeper than the main surface of the semiconductor substrate 1.
Patent JP-H10156818-A (JP)
Title: Manufacture of cement board
Inventor: NISHINO HARUO
IPC: C04B28/02
Filed: 1996-11-27
Abstract: PROBLEM TO BE SOLVED: To change over product specifications without changing an extrusion mold by molding a cement type molding material at a specified extrusion pressure from a molding die having a mouthpiece in which the shape of its cross section can be changed by the position of a molding block. SOLUTION: Extrusion molding is done at an extrusion pressure not exceeding 5.0kg/cm<2> . In this process, a molding die 2 is used, in which a movable molding block 4 is attached to a mouthpiece 3, and the cross section shape of the mouthpiece 3 can be changed by moving the block 4. When the extrusion pressure exceeds 5.0kg/cm<2> , even when the molding die 2 which meets conditions is used, a large change of flow occurs caused by the difference in the cross section shape of the mouthpiece 3 so that it is difficult to extrusion-mold stably.
Patent JP-H01159816-A (JP)
Title: Magnetic head
Inventor: KUGIYA FUMIO
IPC: G11B5/245
Filed: 1987-12-16
Abstract: PURPOSE:To reduce a crosstalk from adjoining tracks by executing a lamination up to an upper magnetic substance, and thereafter, lowering the permeability of magnetic substance track direction both edges except for an aimed track width by means of an ion implantation, etc. CONSTITUTION:On a non-magnetic substrate 7 such as a ceramic, a lower mag netic substance 2 such as a 'Permalloy(R)', an insulating layer 6, a coil conduc tor 5, the insulating layer 6 and an upper magnetic substance 1 such as the 'Permalloy(R)' are successively laminated. After the upper magnetic substance 1 is formed, the permeability of both edge parts 3 and 3' of the lower magnetic substance 2 is made 1/10 or below by the ion implantation. Thus, the effective track widths at the tie of recording and reproducing can be made to coincide, and the influence on the crosstalk from the adjoining tracks can be reduced.
Patent JP-H11129684-A (JP)
Title: Cap for writing instrument or the like
Inventor: SEKINE NOBUO
IPC: A45D34/00
Filed: 1997-10-31
Abstract: PROBLEM TO BE SOLVED: To provide a cap for a writing instrument or the like for smoothly feeding the air by suppressing a damage to a nib without generating a hermetical seal fault with a simple mold structure. SOLUTION: The cap 1 comprises an outer cylinder opened at both ends, an inner cylinder 3 having an annular sealing portion 31 to be sealingly engaged with a writing instrument body on an inner periphery and formed of a cylinder with a bottom, and a plurality of longitudinal ribs 4 extended axially on the inner periphery of the cylinder 2 and integrally. The inner periphery of the cylinder 2 is integrally coupled to the outer periphery of the cylinder 3 above the portion 31, and air passages 6 are provided between the ribs 4. An annular gap 5 is provided between an outer periphery of the portion 31 and the inner periphery of the cylinder 2. Lower ends of the ribs 4 are extended downward from an opening end of the cylinder 3.
Patent JP-2001138006-A (JP)
Title: Water glass base binder for manufacturing casting core
Inventor: THOMAS STEINHAUSER
IPC: B22C1/18
Filed: 1999-11-08
Abstract: PROBLEM TO BE SOLVED: To provide a binder to be added to molding sand, which is provided with the characteristics suitable for use particularly in a core manufacturing device. SOLUTION: In a water glass base binder for manufacturing the casting core composed of alkaline silicate water solution shown with a general formular xSiO2.yM2O.zH2O (M is alkaline ion of Li+, K+ or Na+), the binder contains moisture absorbent.
Patent JP-H06151968-A (JP)
Title: Nitrogen-iii group semiconductor luminous element and manufacture thereof
Inventor: MANABE KATSUHIDE
IPC: H01L33/32
Filed: 1992-10-29
Abstract: PURPOSE:To improve the luminance and life of a nitrogen-III compound semiconductor light emitting diode. CONSTITUTION:A 500Angstrom  AlN buffer layer 2, high carrier concentration n<+>-layer 3, approx. 2.2mum in film thickness and 2X10<18>/cm<3> in electron density, mode of silicon-doped GaN, low carrier concentration n-layer 4, approx. 1.5mum and 1X10<16>/cm<3>, made of non-doped GaN, low carrier concentration p-layer 51, approx. 0.5mu and 1X10<16>/cm<3> in hole density, made of Mg-doped GaN, and high carrier concentration p<+>-layer 52, approx. 0.2mum and 2X10<17>/cm<3> in hole density, are formed on a sapphire substrate 1 in this order. Nickel electrodes 7 and 8 are formed on the high carrier concentration p<+>-layer 52 and high carrier concentration n<+> 3, respectively. The nickel electrode 7 lowers the drive voltage.
Patent JP-H11147042-A (JP)
Title: Preparation of hydroxyl carboxylic acid derivative
Inventor: MOTOI TAKASHI
IPC: B01J29/18
Filed: 1997-11-18
Abstract: PROBLEM TO BE SOLVED: To prepare economically a hydroxy carboxylic acid derivative used for the preparation of glycolic acid by reacting an aliphatic aldehyde with carbon monoxide in a reaction medium by using mordensite of a specific molar ratio as a catalyst. SOLUTION: A hydroxy carboxylic acid derivative is prepared by reacting an aliphatic aldehyde with carbon monoxide in the presence of a H-type mordenite or a metallic ion exchange-type mordenite of an SiO2 /Al2 O3 molar ratio of at least 100 as a catalyst and a reaction medium. The mordenite as a catalyst is preferably of an H-type or of such a type that its entirety or part is subjected to an ion exchange with one kind of metal selected from the group composed of Cu, Zn, Pb, Fe, La, Zr, Cr, Ga, Co, Mn, Ag and Y. Thus acetoxyacetic acid is obtained as a hydroxycarboxilic acid derivative by using formaldehyde as an aliphatic aldehyde and acetic acid as the reaction medium.
Patent JP-H02162612-A (JP)
Title: Manufacture of conductor for covered wire
Inventor: SAWADA KAZUO
IPC: H01B13/00
Filed: 1988-12-15
Abstract: PURPOSE:To maintain tensile strength as well as prevent stress corrosion cracking by making a conductor element element wire by means of fitting in a Cu tube a Cu wire in which concentration of one or more elements that is selected form the group including Ag, Sn, Mg, Cu, In, Ni, Al, Fe, Si, Sb, Zr, Te, Se, is higher than that of the Cu tube, which is then combinated together, wire stretching-processed, and by heating the conductor element wire. CONSTITUTION:In a Cu tube, a Cu wire in which concentration of one or more elements that is selected from a group including Ag, Sn, Mg, Cr, In, Ni, Al, Fe, Si, Sb, Zr, Te, Se is higher that that of the Cu tube is fitted, and combinated together, wire streching-processed so as to make a conductor element wire. Each conductor wire is then heated so as to make the part that corresponds to the inside of the Cu tube softer than that corresponds to the Cu wire. Concentration of the element is defined as 0.05 to 0.2weight% in the center, while not more than 0.03weight% on an external layer. A regressive ratio in wire stretching process is defined as 60 to 99.9%.
Patent JP-H04186560-A (JP)
Title: Optical disk unit
Inventor: NOMURA TADASHI
IPC: G11B19/02
Filed: 1990-11-21
Abstract: PURPOSE:To record, replay and erase a data simultaneously on both faces of a disk by a method wherein an inversion buffer is installed, the data is once stored at a recording operation and a replay operation, it is inverted in a time series manner and, after that, the recording operation and the replay operation are performed. CONSTITUTION:A recording operation and a replay operation are performed on a face 11 at a disk in the same manner as in conventional cases. When a recording operation is performed on a face 12, an input data is input to a signal processing circuit 6, it is once stored in an inversion buffer 61 and, after that, it is output in reverse order in a time series manner. After it has been modulated at a modulation circuit 62, it is input to an optical head 7 and recorded on the face 12 at the disk 1. At a replay operation, the data on the face 12 is read out by using a laser beam 71, it is converted into an electric signal by using the head 7, it is input to the processing circuit 6, and it is input to the inversion buffer 61 via a demodulation circuit 63. After it has been once stored here, it is output to an external control apparatus in a time series manner in a reverse order. Thereby, the data can be recorded and replayed simultaneously on both faces of the disk.
Patent JP-2000143974-A (JP)
Title: Polyamide composition and its molded product
Inventor: OKUDA TAKURO
IPC: C08G69/18
Filed: 1998-11-09
Abstract: PROBLEM TO BE SOLVED: To obtain a polyamide composition capable of providing a monomer- cast nylon or a polyamide resin molded product excellent in lubrication, hardly causing a stick-slip phenomenon or the like, and also being homogeneous by compounding a specific wax and an acid-modified wax in specific proportions, with ε-caprolactam. SOLUTION: This polyamide composition comprises (A) 100 pts.wt. ε- caprolactam, (B) 5-20 pts.wt., preferably 9-11 pts.wt. microcrystalline wax having 70-90 deg.C melting point and 0.92-0.94 g/cm3 density at 25 deg.C, and (C) 0.1-2 pts.wt., preferably 0.8-1.2 pts.wt. modified wax modified by an acid or an alcohol (preferably an oxidized wax or an alcohol-type wax). The melting point of the component C is preferably 60-90 deg.C. The monomer-cast nylon and the polyamide resin molded product can be obtained by heating the objective composition in the presence of an anionic polymerization catalyst and a cocatalyst to carry out the anionic polymerization of the component A.
Patent JP-H07136461-A (JP)
Title: Method for selectively removing oxygen containing compound from mixed gas containing oxygen contained compound, aromatic compound, and oxygen
Inventor: ITO TATSUHIKO
IPC: B01J29/44
Filed: 1993-11-24
Abstract: PURPOSE:To provide a method for removing oxygen containing compounds by the selective oxidation at low temperatures by contacting mixed gas such as exhaust gas containing oxygen contained compounds and aromatic compounds with a catalyst. CONSTITUTION:Mixed gas such as exhaust gas containing oxygen contained compounds and aromatic compounds is treated with a catalyst in which one or more kinds of metal selected from a group consisting of platinum, palladium, and rhodium are mounted on a carrier having a regular porous structure so that the oxygen contained compounds are oxidized selectively to be removed.
Patent JP-H10160739-A (JP)
Title: Tunneling microscope
Inventor: HOSOKI SHIGEYUKI
IPC: G01B7/34
Filed: 1996-11-28
Abstract: PROBLEM TO BE SOLVED: To obtain a tunneling microscope in which a sample can be scanned at high speed and in which the sample can be observed dynamically and in real time by a method wherein a piezoelectric element in which two piezoelectric elements having mutually opposite expansion and contraction directions are pasted and which generates a displacement is used to control a tunnel current across the sample and a probe. SOLUTION: A bimorph-type piezoelectric element 3 for control is connected and fixed to a means 9 by which a probe 1 and a sample 8 are brought close to a tunnel region and to a two-axis (x, y) scanning scanner 11 (constituted of scanning piezoelectric elements 4, 6 and of a bonding jig 5) which is connected to the tip of the means. In addition, a jig 2 used to connect the probe 1 is fixed to the side of a free end on the opposite side, and the probe 1 is attached. At this time, the bimorph-type piezoelectric element which is used as a piezoelectric element in a part responding to a control operation at high speed is formed in such a way that two rectangular thin sheetlike piezoelectric elements are pasted and that expansion and contraction directions of the respective piezoelectric elements are made opposite, and the element as a whole is displaced to be an arc shape.  When one end of the piezoelectric element in the direction of a rectangular length is fixed, the other end is displaced. Its displacement amount can be made larger than that of an ordinary scanner, the efficiency of a tunneling microscope can be made good, and the size and the weight of the microscope can be reduced.
Patent JP-2000143324-A (JP)
Title: Cement composition, cement hardened material using the same and its production
Inventor: MIHARA TOSHIO
IPC: C04B24/26
Filed: 1998-11-09
Abstract: PROBLEM TO BE SOLVED: To obtain a concrete having excellent initial strength development, a small slump loss and excellent material separation resistance, not requiring compaction by using a composition comprising a specific cement, anhydrous gypsum, aluminum sulfate, an alkali metal aluminate and a polycarboxylic acid-based water reducing agent. SOLUTION: This cement composition comprises 100 pts.wt. of a cement having >=60 wt.% 3CaO.SiO content, 1-5 pts.wt. of anhydrous gypsum, 0.2-3 pts.wt. calculated as anhydride of aluminum sulfate, 0.1-0.8 pt.wt. of an alkali metal aluminate and a polycarboxylic acid-based water reducing agent. A copolymer which is composed of constituent units of formula I, formula II and formula III, in which the number (n) of mols of oxyethylene units is 10-60 mols based on 1 mol of carboxy group in the copolymer, and has 5 000-100,000 molecular weight is preferably used as the polycarboxylic acid-based water reducing agent. R in the formula I is hydrogen or a 1-5C alkyl group.
Patent JP-H05150276-A (JP)
Title: Nonlinear optical material and production thereof
Inventor: YOSHIDA MASARU
IPC: G02F1/35
Filed: 1991-12-02
Abstract: PURPOSE:To produce a nonlinear optical material protecting the surfaces of fine semiconductor particles from oxidation, suppressing the emission of light from a deep level and having excellent nonlinear optical characteristics. CONSTITUTION:A thin film of an org. polymer 12 is deposited on a substrate 14 and fine semiconductor particles 11 are deposited on the thin film. A thin film of the polymer 12 is deposited again and glass 13 is further deposited. These processes are repeated to obtain a nonlinear optical material contg. fine semiconductor particles 11 surface-coated with the org. polymer 12 in the glass 13 in a dispersed state.
Patent JP-H06157830-A (JP)
Title: Rubber composition
Inventor: OHATA HIROYUKI
IPC: C08L51/08
Filed: 1992-11-02
Abstract: PURPOSE:To obtain a rubber composition which gives a molding improved in sliding properties, abrasion resistance, weatherability, ozone resistance, heat resistance, etc., by incorporating a specified amount of a specified acrylic- modified polyorganosiloxane into a synthetic rubber and/or a natural rubber. CONSTITUTION:A polyorganosiloxane (A) of formula I (wherein R<1>, R<2> and R<3> are each a 1-20C hydrocarbon or halogenated hydrocarbon group; Y is a group capable of free-radical reaction, or an organic group having an SH group; Z<1> and Z<2> are each H, lower alkyl, etc.; (m) is a positive integer of 10,000 or smaller, and (n) is 1 or greater) is copolymerized with component (B) comprising a (meth)acrylic ester of formula II (wherein R<7> is H or methyl; and R<8> is alkyl, alkoxy-substituted alkyl, cycloalkyl or aryl) or a mixture of at least 70wt.% of this ester and at most 30wt.% copolymerizable monomer at a weight ratio of component A to component B of (5:95) to (95:5). At least 0.1 pt.wt. acrylic- modified polyorganisiloxane obtained is incorporated into 100 pts.wt. synthetic rubber and/or natural rubber.
Patent JP-2001139304-A (JP)
Title: Carbon dioxide separation type reformer
Inventor: OGATA TOMOKO
IPC: C01B3/38
Filed: 1999-11-09
Abstract: PROBLEM TO BE SOLVED: To unnecessitate a large-scaled device by separating carbon dioxide while reforming methane into a hydrogen enriched gas. SOLUTION: Plural sections are formed by dividing the inside of a tightly closed drum part in a fluid tight state with a reforming catalysst layer for reforming methane to convert into the hydrogen enriched gas, a heating tube group, through which the heating medium is passsed, and a porous ceramic pipe group impregnated with zirconate to permeate only carbon dioxide are arranged in the sections adjacent to each other. A fuel gas prepared by mixing methane with steam is heated by the heating pipes and passed through plural reforming catalyst layers to perform the reforming reaction to obtain the hydrogen enriched gas and carbon dioxide simultaneously produced is taken out through the porous ceramic pipe to be recovered.
Patent JP-H08245793-A (JP)
Title: Organosilicon compound having (meth)acryloxy group, its production, photocross-linkable composition containing it, and coating comprising cross-linked composition
Inventor: YOHIEN DAUTO
IPC: C09D183/06
Filed: 1995-12-06
Abstract: (Meth)acryloxy gp.-contg. organosilicon cpds. (A) with units of formula (I) are claimed, contg. at least one gp. A per mol.. AaRbSicO(4-(a+b+c)/2 (I) R = opt. halogenated 1-18C hydrocarbyl; X = Cl or -OR<1>; R<1> = 1-8C alkyl, opt. with in-chain ether oxygen; a = 0 or 1; b = 0, 1, 2 or 3; c = 0, 1, 2 or 3; a+b+c = not more than 4; A = gp. of formula (II); z = 1, 2, 3 or 4; R<2> = H or Me; and R<3>, R<4> = 1-6C alkylene. Also claimed are (i) processes for the prodn. of cpds. (A); and (ii) photo-crosslinkable compsns. contg. (A) the above organo-polysiloxanes and (B) photosensitisers.
Patent JP-H09159570-A (JP)
Title: Piston damper stopping device
Inventor: OTA SHINKO
IPC: G01M9/04
Filed: 1995-12-06
Abstract: PROBLEM TO BE SOLVED: To eliminate a large load which is generated in the initial stage of operation of an impact wind tunnel and is generated in a wind tunnel main body, a support device and a foundation bed by high speed travel of a piston, and eliminate generation of a large load by stopping of the piston in the final stage of operation. SOLUTION: A piston hydraulic accumulator 101 using GN2 of constant pressure as back pressure is adopted as a small reaction damper, and moving energy is absorbed by low constant reaction, and a moving distance of a piston 8 is restricted, and a spring setting type relief valve 102 is adopted as a large reaction damper, and when actuation of the small reaction damper finishes, travel of the piston 8 is stopped by large reaction. Therefore, the small reaction damper and the large reaction damper are automatically switched to from each other, and a load generated by high speed travel of the piston 8 can be effectively reduced.
Patent JP-H08177230-A (JP)
Title: Concrete form
Inventor: TAKASHIMA TAKUJI
IPC: E04G9/00
Filed: 1994-12-21
Abstract: PURPOSE: To obtain strong fastening force without increasing the number of fastening metal fixtures when fastening is made with the fastening metal fixtures. CONSTITUTION: In mounting parts 19 of fastening metal fixtures of reinforced edge materials 4 as parts regulated by intermediate reinforcing materials 3 of reinforced edge materials provided to the circumferential edge sections on the rears of concrete casting sections 1 having concrete casting surfaces 1a, the front ends 4a on the rears of the reinforced edge sections 4 are so bent that they come near to the inside from the perpendicular line (v) drawn to the rears from the circumferential edge sections of the concrete casting surfaces 1a. Distance (d) to the perpendicular line (v) from the front ends 4a of the reinforced edge sections 4 is 0.2-3mm. By elasticity of the reinforced edge sections, pushing force is operated in the opening direction of the holding sections of the fastening metal fixtures, and fastening force of them is increased.  When the fastening metal fixtures are mounted, two reinforced edge materials adjacent to each other can be easily fitted to the holding sections to insert.