baber/WOPTO huggingface dataset:
Patent JP-S6432456-A (JP)
Title: Endless video tape recorder
Inventor: YOSHIDA OKIFUMI
IPC: G11B15/61
Filed: 1987-07-27
Abstract: PURPOSE:To contrive a reduction of flaws in a tape, a complete endless operation and an improvement of recording and reproducing characteristics by applying a guide drum with a rotary head to a recording and reproducing part, performing a helical scanning for recording and reproducing and providing properly slantingly the guide drum. CONSTITUTION:The guide drum 24 with the rotary head is applied to the recording and reproducing part. Then, the guide drum 24 is slantingly provided at a prescribed angle theta in a prescribed direction so that a tape 23 drawn from a tape winding body 22 passes on the same plane as a plane 51 inclusive of a fixed reel 20 and reaches the circumferential surface of the guide drum 24 to wind around the guide drum 24 at a prescribed angle and then the tape 23 leaving here passes under the bottom side of the fixed reel 20 and then to come out of the fixed reel 20 in a descending direction to meet said direction. Consequently, the tape traveling speed can considerably be lowered, while the tape passing onto the guide drum on the entrance side and the exist side in the tape traveling direction will take place without twisting the tape. By this method, the reduction of flaws in a tape, the endless operation with no interruptions and the improvement of the recording and reproducing characteristics can be contrived.
Patent JP-H0851204-A (JP)
Title: Manufacture of semiconductor device
Inventor: TERAMOTO AKINOBU
IPC: H01L29/78
Filed: 1994-08-09
Abstract: PURPOSE:To prevent a gate oxide film from being exposed to deteriorate, in the etching of a polysilicon film for formation of a gate electrode. CONSTITUTION:A gate oxide film 3 is made in the element region on a silicon substrate 1, and then a silicon film 4 is stacked all over the surface, and then the polysilicon film 4 is etched, with a photoresist 5 pattern as a mask, so that the polysilicon film 4 may be remain by about 25-100Angstrom  on the gate oxide filmy, and after removal of the photoresist 5 pattern, the polysilicon film 4 is oxidized by about 25-100Angstrom , and an oxide film 7 is made all over the surface. Accordingly, a favorable oxide film can be obtained, and the reliability on the gate electrode edge improves.
Patent JP-2001012446-A (JP)
Title: Propeller shaft
Inventor: HOSOOKA KAZUOKI
IPC: F16C3/02
Filed: 1999-07-01
Abstract: PROBLEM TO BE SOLVED: To prevent the rupture of an elastic body part by axially extending a part to be contacted with an inner peripheral surface of a propeller shaft, of the elastic body part of a dynamic damper, and allowing a paper damper to be contacted with an end surface of the same. SOLUTION: A dynamic damper 2 is fixed to a propeller shaft 1, and paper dampers 4 are arranged at both axial ends thereof. The damper 2 is formed by forming extended parts 8 consisting of flange parts on both axial sides of a rubber part 3 radially arranged on an outer peripheral surface of a mass part 5, and its thickness is same as or larger than a thickness of the damper 4. The extended part 8 has the annular shape surrounding the rubber part 3, and its outer peripheral surface is adhered to an inner peripheral surface of the shaft 1. The damper 4 is contacted with an end surface of the extended part 8 and stopped, even when it is axially moved and approaches to the damper 2 in the rotation of the shaft 1, so that the rubber part 3 is not directly damaged and ruptured even though the extended parts 8 is damaged and ruptured.  That is, the damper 2 is provided with the durability, and its characteristics can be kept.
Patent JP-S6251136-A (JP)
Title: Color picture tube
Inventor: OTAKE YASUHISA
IPC: H01J29/07
Filed: 1985-08-28
Abstract: PURPOSE:To prevent the colorimetric purity from being deteriorated by the thermal expansion of a shadow mask at the time of the rise in the temperature thereof, by making the shadow mask of an iron-nickel alloy as the main constituent, and annealing the mask at a high temperature to prescribe the crystal grains of the outer and inner portions of the mask to make the crystal grains of both the portions different from each other. CONSTITUTION:A metal plate whose main constituent is an iron-nickel alloy such as Invar is provided with numerous openings to constitute a shadow mask 15 for a color picture tube 10. The metal plate is annealed at a high temperature under a hydrogen atmosphere so that the crystal grains of the outer portion of the plate are set at 7-10 in crystal grain size number prescribed by the JIS GO 551 and those of the inner portion thereof are set at 3-6.9 in crystal grain size number prescribed by the same, namely, the size of each crystal grain is made different between the outer and inner portions of the plate. The plate is then pressed. A blackened film is made on the plate. The shadow mask 15 is thus completed. The size of each crystal grain of the outer portion of the shadow mask 15 is small, while that of each crystal grain of the inner portion thereof is large. The coefficient of thermal expansion of the shadow mask is low. The openings of the shadow mask are not nonuniformly expanded thermally.
Patent JP-H0936112-A (JP)
Title: Forming method of ai wiring
Inventor: MORI HIROTAKA
IPC: H01L21/3205
Filed: 1995-07-24
Abstract: PROBLEM TO BE SOLVED: To form an AI wiring, having excellent surface flatness, on which a through hole can be filled up as desired by a method wherein an AI wiring film is formed in the through hole of an insulating film and on an insulating film in three temperature stages, namely, a low temperature stage, a medium temperature stage and a high temperature stage. SOLUTION: First, an AI film 17a is formed in the thickness thinner than the intended film thickness under the low temperature condition under which the coverage of through hole 13a can be secured. Then, a film 17b is formed on the film 17a under the temperature condition higher than the low temperature condition and medium temperature condition in which the particles of material can be fludized. Then, a film 17c of wiring material is formed on the film 17b under the temperature condition higher than the medium temperature condition and the high temperature condition which is lower than the melting point of the AI wiring material until accumulated film thickness reaches the intended film thickness, and an AI wiring 17 is obtained.
Patent JP-2001014311-A (JP)
Title: Place name representing method, and method and device for place name character string recognition
Inventor: KOGA MASASHI
IPC: G06F17/27
Filed: 1999-07-01
Abstract: PROBLEM TO BE SOLVED: To permit a high-speed collating process by generating a place name dictionary covering all place name character strings even when place names has many different notations, with less man-power. SOLUTION: Different notations of a place name are represented by extending a BNF notation method known as one representing method for the generation rule of context free grammar to match to the notation of a place name. According to the generation rule, the pattern of a typical different notation, e.g. small 'ke' and large 'ke' in the square form of Japanese syllabary and 'ga' in the cursive form of Japanese syllabary are defined as one syntax category, so that a set of the different notations of the place name can be simply represented. Further, the different notations of the place name can be simply represented by using select symbols adopted by the BNF notation method. Namely, the different notations of the place name are represented according to the generation rule (102) and recognition (104) is performed by using a network obtained from the generation rule.  Consequently, the dictionary into which the set of various different notations is entered can be easily generated without any omission.
Patent JP-H0474536-A (JP)
Title: Catalyst for decomposing nitrogen oxide
Inventor: HAYASAKA TOSHIAKI
IPC: B01D53/94
Filed: 1990-07-16
Abstract: PURPOSE:To obtain a catalyst for decomposing nitrogen oxide having high activity and long life by constituting the catalyst of a metal compound of nickel or iron being a main catalytic component, a silver compound being a cocatalyst component and an inorg. heat-resistant compound of aluminum or silicon being a carrier component. CONSTITUTION:A catalyst consists of a metal compound of nickel, iron or cobalt being a main catalytic component, a silver compound being a cocatalyst component and an inorg. heat-resistant compound of aluminum, silicon or manganese becoming a carrier component. When the exhaust gas from a car or cogeneration is brought into contact with this catalyst, the high NOx decomposing activity of the catalyst is kept for a long period of time without receiving the effect of O2 or SOx through O2 or SOx is contained in high concn.
Patent JP-S5978433-A (JP)
Title: Electromagnetic objective
Inventor: YAMAZAKI SHIGETOMO
IPC: H01J37/141
Filed: 1982-10-26
Abstract: PURPOSE:To drastically improve spherical aberration without deterioration of chromatic aberration by forming the side of lower magnetic pole piece or the periphery thereof of the upper magnetic pole piece as the magnetic saturating part where is saturated with a weak maganetization energy. CONSTITUTION:The side of lower magnetic pole piece 1'a of the upper magnetic pole piece 1' is formed thicker than the other part and thereby said edge 1'a is considered as the magnetic saturating part where is magnetically saturated with a weak magnetication energy. Moreover, the distance l from the edge of such magnetic saturating part 1'a to the upper surface of the lower magnetic pole piece 2 is set longer than the length of clearance of conventional objective. Thereby, the length between the principal plane of lens and a sample can be set as short as possible and as a result chromatic aberration coefficient can be kept good and moreover spherical aberration coefficient can be reduced. Accordingly, remarkably high performance lens characteristic can be obtained by improving the resolution.
Patent JP-S6082659-A (JP)
Title: Ornamental base body
Inventor: HASEGAWA HIROSHI
IPC: G01D13/02
Filed: 1983-10-06
Abstract: PURPOSE:To develop an ornamental base body having excellent visibility, designable property, and durability by providing an optical interference film of a specified shape on one surface of a transparent substrate and a colored opaque material on the other surface to cover said interference film, and forming the surface which is faced outward when used with physical vapor deposition. CONSTITUTION:An optical interference film 2 of a specified shape is formed on one surface of a transparent base plate 1 of glass, polymethyl methacrylate, etc. in manufacturing an ornamental base body such as window glass for vehicles and architectures. The optical interference film 2 is formed by physical vapor deposition such as sputtering of metallic oxide such as B2O3, Al2O3, SiO2, GeO2, and TiO2, fluoride such as MgF2CeF3, and an inorganic salt such as CaSiO3 or MgAl2O4. A colored opaque body 3 obtained by mixing pigment and low-melting point glass frit is formed on the other surface of the base plate 1 so that a part or the whole of the optical interference film 2 may be covered. The surface formed by physical vapor deposition is faced outward when used, and the ornamental base plate having excellent ornamentality, visibility and durability can be obtained.
Patent JP-H0238446-A (JP)
Title: New resin composition
Inventor: OKABE KATSURO
IPC: C08L51/08
Filed: 1988-07-29
Abstract: PURPOSE:To obtain a resin composition excellent in solvent resistance and mechanical properties by mixing a polyphenylene ether with a polyester and a styrene/polycarbonate copolymer. CONSTITUTION:The title resin composition comprises polyphenylene ether, a polyester and a styrene/polycarbonate copolymer. As the polyphenylene ether, poly(2,6-dimethyl-1,4-phenylene) ether, 2,6-dimethylphenol/2,3,6-trimethylphenol copolymer and graft copolymers obtained by grafting styrene onto the above two polymers are particularly desirable. As the polyester, polyethylene terephthalate or polybutylene terephthalate is desirable. The temperature in melt-mixing the above composition is 230-370 deg.C, desirably, 250-320 deg.C.
Patent JP-H0745605-A (JP)
Title: Forming method of silicon oxide film
Inventor: FUKUYAMA SHUNICHI
IPC: H01L21/312
Filed: 1993-07-29
Abstract: PURPOSE:To form an inorganic film which can be used as a comparatively thick film equivalent to organic SOG or more without being oxidized by O2 plasma treatment and without causing corrosion of aluminum of wiring, by sticking polysilazane on a substratum, and transforming an obtained polysilazane film into a silicon oxide film. CONSTITUTION:When a silicon oxide film is formed, polysilazane is stuck on the substratum, and an obtained polysilazane film is transformed into a silicon oxide film. For example, a substratum is spin-coated with polysilazane, which is fused and flattened by heat treatment. A silicon oxide film is obtained by transforming the polysilazane into silicon oxide. In the case of transformation into the silicon oxide film, the polysilazane film is subjected to first heat treatment at a temperature preferably higher than or equal to 300 deg.C, and then subjected to water absorption treatment by dipping the film in hot water. Second heat treatment is performed at a temperature higher than or equal to 350 deg.C. In other case, the film is irradiated with ultraviolet rays, subjected to water absorption treatment by rinsing, and then heat-treated at 350 deg.C or higher.
Patent JP-S6431008-A (JP)
Title: Measuring apparatus for length by electron beam
Inventor: NOZUE HIROSHI
IPC: G01R31/302
Filed: 1987-07-27
Abstract: PURPOSE:To sharply reduce a time required for measuring a length and thus to obtain a semiconductor of high quality, by a construction wherein an electrooptic system for forming, focusing and projecting a variable rectangular electron beam is set in a vacuum specular body. CONSTITUTION:The way of overlapping of an image formed by a rectangular aperture (KA) 102 with a rectangular aperture (KA) 105 is varied by a deflection electrode 120 provided between KA 102 and KA 105, and the shape of a beam is made variable successively. A variable rectangular electron beam 117 passing through KA 105 is reduced by a reducing lens 104, passes through a restricting aperture 118 and is projected on a wafer 109 by a projecting lens 119. The projected variable rectangular beam 117 is made to scan on the wafer 109 by a scanning deflection electrode 107. Secondary electrons generated thereby from an irradiated part are caught by a scintillator 121, secondary electron signals thus obtained are processed by a control unit 115, and the sizes can be determined. Since the beam extending to be long in the direction of a pattern for length measurement is used, a signal being excellent in S/N and highly reliable can be obtained by scanning several times for one spot.
Patent JP-H0853533-A (JP)
Title: Brominated epoxy resin composition for laminate
Inventor: YAMAMOTO MITSURU
IPC: H05K1/03
Filed: 1994-08-10
Abstract: PURPOSE:To obtain the subject resin composition excellent in flexibility and flame retardancy and useful for printed circuit laminate board. CONSTITUTION:This brominated epoxy resin composition for laminate contains (A) an epoxy resin synthesized by using (a) a tetrabrombisphenol A type epoxy resin having 330 to 500 epoxy equivalent, (b) another bisphenol A type epoxy resin having 170 to 300 epoxy equivalent and (c) a dimer acid of 180 to 200 acid value in a molar ratio of (0.3 to 0.6):(0.8 to 1.8):1 and conducting a thermal reaction of the resultant mixture and having <=0.3 acid value, (B) another thermosetting resin and (C) a flame retardant.
Patent JP-H0237718-A (JP)
Title: Machining method by ion beam
Inventor: SHIMASE AKIRA
IPC: H01J37/305
Filed: 1988-07-29
Abstract: PURPOSE:To obtain position detection accuracy which is equivalent to that of a small-aperture beam even in a large-aperture beam by changing beam focusing states when detecting a mark for determining irradiation position on an object to be irradiated and when irradiating it. CONSTITUTION:A proper ion optic system is selected, voltage applied to lenses 11-13 is changed, focusing state of a beam 1 is changed, focusing state best suited for detecting a mark and that best suited for machining are switched. That is, since resolution for detecting the mark is determined by the peak width, the distribution when detecting at the center of the mark is narrow in the MD(Mark Detection) shaped beam so that a required accuracy can be satisfied. In the ML shape where the expansion toward the bottom is small, the ratio of the bottom part being outside the machining area is small and the machining depth closer to the value estimated from the ion-dose amount is obtained. Thus, it is advantageous to use a beam of this shape on machining. Using those properly according to the need achieves a highly accurate positioning and high-speed machining.
Patent JP-S6080501-A (JP)
Title: Simultaneously both surfaces working type machine tool
Inventor: SAKAKIBARA TATSUO
IPC: B23B3/06
Filed: 1983-10-11
Abstract: PURPOSE:To enable both surfaces of a work to be simultaneously worked with a cutter shaft and a separate tool rest by inserting a chuck draw bar into a spindle and the cutter shaft into a hollow portion of the bar and providing respective hydraulic units on the end to be driven forward and backward respectively. CONSTITUTION:A chuck draw bar 12 for opening and closing a chuck 5 is inserted into a bore 11 of a spindle 6 journalled by bearings 7, 7 in a head stock 2, journalled by a bearing 13 and a bearing 14e in a fluid unit support frame 14f and provided on the end with hydraulic units 14. A piston 14b capable of adjusting the stroke of the chuck draw bar 12 is moved forward and backward to open and close the chuck 5 for clamping a work a. Also, a cutter shaft 17 having a cutter 16 on the end inserted into a bore 15 of the chuck draw bar 12 is journalled on the front and rear portions by bearings 18, 18 and moved forward and backward by a piston 19b capable of adjusting the stroke of a fluid unit 19 provided on the end to work an end of a work a.
Patent JP-H0475712-A (JP)
Title: Device for removing eccentricity of roll on rolling mill
Inventor: KODAMA SUMIYASU
IPC: B21B37/18
Filed: 1990-07-17
Abstract: PURPOSE:To remove the eccentricity of roll by detecting the rolling force independently at the work side and the drive side, detecting the roll eccentric ingredient of the same phase and reverse phase, and controlling the roll gap independently at the work side and the drive side. CONSTITUTION:The rolling force is detected by the work side load detector 5 and the drive side load detector 6, fed to the adder 7 and the sunbtractor 8 to compose the sum load and the differential lad, and fed to the sum load roll eccentricity detector 9 and the differential load roll eccentricity detector 10. The roll gap correcting signal of the sum load roll eccentricity detector 9 and the differential load roll eccentricity detector 10 is inputted to the power adjusting units 11, 12 and the roll gap correcting signal is adjusted. The work side servo amplifier 15 and the drive side servo amplifier 16 control the work side rolling reduction cylinder 17 and the drive side rolling reduction cylinder 18 independently following to the respective roll gap correcting signals of the work side and the drive side passed the power adjusting units 11, 12.
Patent JP-H1018312-A (JP)
Title: Structure for reducing lateral ground flow pressure to underground structure
Inventor: HORIKOSHI KENICHI
IPC: E02D27/34
Filed: 1996-06-28
Abstract: PROBLEM TO BE SOLVED: To prevent an underground structure from being damaged by transmitting a lateral ground flow pressure exerted on an underground wall for transmitting flow pressure bulging in an arch shape in horizontal cross section upstream of a ground liquefaction stream to a specific flow pressure supporting underground side wall, thereby dispersing the lateral ground flow pressure exerted on the underground structure. SOLUTION: An underground side wall 2 for transmitting flow pressure is constructed to bulge in an arch shape in its horizontal cross section opposite the direction of a lateral ground flow pressure 8 caused by liquefaction to a foundation of a structure. The length of the underground side wall 2 for transmitting spans from the ground liquefaction layer and down to a non-liquefaction layer and its width is wider than the lateral width of a foundation located behind it so that the lateral ground flow pressure 8 received with the foundations dispersed by an arching effect.  Underground supporting walls, 3, 3 located behind both ends of the underground side wall 2 for transmitting are supported with the non-liquefaction layer and bonded to both ends of the transmitting underground wall 2, and transmit and absorb the lateral ground flow pressure 8 received with the underground side wall 2 for transmitting.
Patent JP-H1022132-A (JP)
Title: Electronic component
Inventor: INOKUCHI TAKAHIRO
IPC: H01F27/32
Filed: 1996-06-28
Abstract: PROBLEM TO BE SOLVED: To provide electronic component in which the characteristics of a coil element are not deteriorated by the pressure of a resin and the resin or a case is not cracked by an elastic protective material wrapping the coil element. SOLUTION: The entire body of a coil element 11 is wrapped with a protective section 16 except the leads of the wiring 13 of a toroidal core 12. The protective section 16 is formed in a cylindrical shape by using such an elastic protective material as the silicone resin and a projecting section 18 is formed on the bottom face of the section 16. The element 11 is housed in a bottomed resin case 14 in such a state that the leads of the winding 13 are connected to external terminals 17 and a space is formed between the projecting section 18 and the surface of the opening of the case 14 so that the section 18 is not able to be protruded from the surface of the opening and, in addition, from the connecting surfaces of the terminals 17 even when the section 18 expands.  Then the element 11 is sealed so that the projecting section 18 of the protective section 16 can be exposed by injecting an epoxy resin 15 into the case 14 from the opening of the case 14.
Patent JP-H0998070-A (JP)
Title: High frequency channel selection circuit for radio receiver and production of tuning circuit constructing the channel selection circuit
Inventor: SUZUKI YUKIO
IPC: H03J3/32
Filed: 1996-06-28
Abstract: PROBLEM TO BE SOLVED: To improve the degree of designing freedom of a radio receiver by making each tuning circuit constructing a high frequency channel selection circuit into a single block. SOLUTION: The variable capacitance diodes are sorted for every necessary rank and the fixed capacitors are sorted for every necessary capacitance value respectively. Then the fixed capacitors corresponding to the ranks of variable capacitance diodes are selected for every tuning circuit. The variable capacitance diodes, the fixed capacitors selected according to the ranks of variable capacitance and the coils are connected together. Thus a block of a tuning circuit is formed. As a result, the capacitance variable ratio that is set by every tuning circuit is secured in a common tuning voltage range. Then the inductance of every tuning circuit is controlled at a common tuning voltage level, so that no tracking error is caused. Therefore, the tuning voltage range can cover the range of the receiving bands.