baber/WOPTO huggingface dataset:
Patent JP-S63253320-A (JP)
Title: Cata-dioptric system
Inventor: ARAI YASUNORI
IPC: G02B17/08
Filed: 1987-04-09
Abstract: PURPOSE:To obtain a long focus optical system which has an ultra-large aperture and satisfactorily corrected aberrations and which is easily worked by providing the system with four optical elements and satisfying specific conditions. CONSTITUTION:Viewed from the object side, the titled system is composed of the 1st optical element E1 consisting of a menisucul lens with a weak negative power, the 2nd optical element E2 consisting of a reflecting surface with positive power, the 3rd optical element E3 deflecting reflected light from the 2nd optical element, and the fourth optical element 4 containing to least one negative lens. They have to be constituted to satisfy the condition shown by inequalities I where f, f1, RI,1, fII and lII,III denote the focus distance of the entire system, that of the 1st optical element, the curvature radius of the 1st face of the 1st optical element, the focus distance of the 2nd optical element and the air interval from the 2nd optical element to the 2nd one, respectively. Thus, such a high performance reflecting and refracting optical system can be obtained that is composed of easily worked spherical systems. The cost of the optical system is advantageous and its spherical aberration, coma aberration and astigmatism are minimized.
Patent JP-H03289031-A (JP)
Title: Plate-like cathode-ray tube
Inventor: NODA FUMIO
IPC: H01J31/12
Filed: 1990-04-04
Abstract: PURPOSE:To prevent creeping discharge of a container inner wall for impressing sufficiently high voltage on the phosphor surface by coating a region between a supporting means of an inner electrode provided on the inner wall of a vacuum container and the phosphor surface. CONSTITUTION:A phosphor surface 2 is formed at least on a part of the inner face of a vacuum container 1 while providing a region coated with a resistance member 3 so as to fringing the peripheral part of the phosphor surface on the inner wall of the vacuum contain er 1. Especially, in order to prevent creeping discharge between a supporting means 4 of an inner electrode 7 and the phosphor surface 2, the inner wall exposed part between both is coated with a resistance body 3. The inner peripheral part of the region coated with the resistance member 3 is in contact with the phosphor surface 2, while the outer peripheral part is in contact with the supporting means 4 of the inner electrode 7, so that, when high voltage is impressed on the phosphor surface 2 and low voltage is impressed on the supporting means 4 respectively, a constant minute current flows through the resistance member 3. Thereby, creeping discharge between the phosphor surface 2 and the inner electrode 7 or its supporting means 4 is prevented thus improving a dielectric characteristic.
Patent JP-H02266533-A (JP)
Title: Manufacture of semiconductor device
Inventor: FUIRITSUPU ORUDEIJISU
IPC: H01L21/336
Filed: 1989-04-07
Abstract: PURPOSE:To reduce electric field strength in the vicinity of ends of an electrode to which voltage is applied by a method wherein the thickness of a gate oxide film in the vicinity of the end of the gate electrode is increased. CONSTITUTION:An electrode 4 is formed on an insulation film 3, and while nitrogen is ion-implanted to a silicon substrate 1 and the electrode at low energy, the silicon substrate 1 and the electrode 4 are oxidized at low temperature in low pressure oxygen atmosphere. In the vicinity of ends of the electrode 4 oxidation parallel to the surface of the silicon substrate 1 occurs so that the thickness of the insulation film 3 at the ends of the electrode 4 is larger than that of other parts. In addition this oxidation applies force to the ends of the electrode 4 in such directions that the ends of the electrode 4 are separated from the silicon substrate 1 so that the ends of the electrode 4 are bent in such directions that they are separated from the silicon substrate 1. Thus a distance between the ends of the electrode and the silicon substrate 1 is increased thereby reducing electric field strength in the vicinity of the ends of the electrode 4.
Patent JP-S5714555-A (JP)
Title: Carboxylic acid and its preparation
Inventor: KODAMA TAKUYA
IPC: C07C65/28
Filed: 1980-07-01
Abstract: NEW MATERIAL:Carboxylic acids of formula I(A is alkenylene, alkadienylene substituted with carboxyls; R 2  is carboxyl, alkyl arbitrarily substituted with carboxyl; n is 0W3; R is carboxyl, alkyl, alkenyl) and their salts.  
     EXAMPLE: Trans-1-(3-Carboxyphenyl)-4-phenyl-1, 3-butadiene-1-carboxylic acid.  
     USE: Agent for accelerating or normalizing immune state, antitumor agent or liver function improver.  
     PREPARATION: The reaction of a compound of formula II(R 1  is bond, alkylene, alkenylene) with another compound of formula III(m is 1W3), its salt or anhydride gives the compound of formula I or its salt. The reaction is conducted in the presence of a base, when necessary, in a solvent of acetic acid or the like. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H02266523-A (JP)
Title: Ethcing method of crystal
Inventor: TANI TAKEHIKO
IPC: H01L21/306
Filed: 1989-04-07
Abstract: PURPOSE:To obtain distinct stripes easily on the surface of a compound semiconductor substrate without forming an oxide film even in a compound semiconductor crystal, to which an impurity is not doped, by making large currents having a fixed value or more flow and electrolyzing the crystal while keeping the potential of the substrate as an anode at low specified potential. CONSTITUTION:When Jurrents (i) of 6X10<-7> coulomb or more are made to flow between the anode 15 of a compound semiconductor substrate 14 and a cathode 16 as a counter electrode, a chemical change is generated on the surface of the substrate 14 regardless of the doping or undoping of the compound semiconductor substrate 14, and the surface of the substrate 14 begins to be melted. When the potential E of the anode 15 is kept at potential of 0.1-5 volt to a saturated calomel electrode 17 used as a standard electrode, the formation of an oxide film on the substrate 14 shaped in proportional to voltage is inhibited. Consequently, the protruding section of the surface of the substrate is melted quickly without forming the oxide film, and a smooth surface is acquired. Accordingly, growth stripes are exposed from the surface of the substrate.
Patent JP-S60232529-A (JP)
Title: Liquid-crystal display device
Inventor: OKADA YUTAKA
IPC: G02F1/1333
Filed: 1984-05-02
Abstract: PURPOSE:To reduce the area of a front surface projection of the sealing part of a liquid-crystal panel until the discontinuity of display is not a problem in practical use by a flank sealing part which has a thin sealing plate adhered to flanks of a substrate as the sealing part which is at least part of a liquid-crystal panel. CONSTITUTION:Two sides of substrates 31 and 32 are adhered together by printing a sealing material 33 through a screen and a flank adhesive 37 is applied to the thin sealing film 36 at the remaining two sides and adhered to the flanks of substrates to form a cell. Liquid crystal 34 is injected into the cell by a vacuum injecting method and the injection port is sealed with an epoxy sealing material 35 to form the liquid-crystal panel 30. An adhesive which sets by ultraviolet- ray irradiation is used effectively as the flank sealing material 37 as well as a two-liquid room-temperature setting type adhesive. This flanks sealing reduce the width of the sealing part greatly to about 0.2mm. on the whole.
Patent JP-H05287524-A (JP)
Title: Target for magnetron sputtering
Inventor: SASAKI TORU
IPC: H01L21/203
Filed: 1992-04-09
Abstract: PURPOSE:To form a film having a uniform thickness on a wafer by inclining a sputtering surface at a specified angle of inclination toward the center of a target. CONSTITUTION:The target for sputtering on a flat plate consisting of high-purity aluminum or its alloy is inclined downward by 1 to 10 deg. toward the central part. As a result, the film thickness having the high uniformity is obtd. on the wafer even if the distance between T/S is shortened by using a large-sized wafer of large-sized targets.
Patent JP-H05291238-A (JP)
Title: Etching method for silicon wafer
Inventor: KAMIMURA KENICHI
IPC: H01L21/308
Filed: 1992-04-09
Abstract: PURPOSE:To provide an etching method wherein a microscopic shape on the surface of a wafer is enhanced, the outermost edge part of the wafer is not stepped and an irregularity in the etching operation of the wafer is not caused. CONSTITUTION:In an etching solution 3, 0.05 to 0.8mol/l of silicon is dissolved in a solution having the following compositions: the ratio of hydrofluoric acid to nitric acid is 0.4 to 1.0wt.%; the ratio of (hydrofluoric acid + nitric acid) to acetic acid is 0.8 to 3.0wt.%; and the ratio of (hydro-fluoric acid + nitric acid) to water is 0.8 to 2.9wt.%. The etching solution is used, the temperature of an etching operation is adjusted to a temperature of 20 to 60 deg.C, and wafers 3 are immersed and etched.
Patent JP-S60232612-A (JP)
Inventor: CHINO EIJI
IPC: H01B5/14
Filed: 1984-05-02
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H10283801-A (JP)
Title: Luminaire
Inventor: ARAKAWA OSAMU
IPC: F21L4/00
Filed: 1997-04-08
Abstract: PROBLEM TO BE SOLVED: To provide a luminaire of such a structure as put on by pushing its lens part intermittently, wherein the electric bulb is prevented from lighting up undeliberately while it is out of service. SOLUTION: On the front face of a body 31, a lens part 37 is installed in such a way as movable in the directions to the front and rear of the body 31. The body 31 is equipped with an electric bulb 33 and a push-button type switch 4 to be actuated when the lens part 37 is moved toward the rear. The lens part 37 is arranged rotatably in the circumferential direction. The body 31 and lens part 37 are equipped with a movement hindering means to hinder the lens part 37 from moving toward the rear in case it is placed in the specified position about the circumferential direction.
Patent JP-S63255544-A (JP)
Title: Fuel control device of engine
Inventor: MANTOKU SUSUMU
IPC: F02D41/34
Filed: 1987-04-10
Abstract: PURPOSE:To allow the fuel to finish injecting before completion of the suction stroke regardless of the engine operating condition by supplying the fuel in amount corresponding to the difference after supply of fuel in a fixed amount in synchronization with the calculating point for fuel injection amount. CONSTITUTION:When a control unit 4 judges the calculation starting timing in synchronization with rotation of engine 1, calculation of fuel injection amount cycle by cycle is begun upon receiving the output signal therefrom on the basis of the suction air amount signal and revolving speed signal. Injector 3 is actuated by generating a control pulse having a pulse width corresponding to the fixed injection amount simultaneously with start of the calculation. Accordingly fuel in the fixed amount is first supplied to the engine 1 in synchronization with the calculation point. At the time the calculation is finished, control pulse is generated which has a pulse width corresponding to the amount consisting of the calculated result wherefrom the fixed amount is subtracted, and the injector 3 is operated again. This differential injection amount is less than the total calculated injection amount by the amount corresponding to the fixed injection amount, so that the finish of injecting is accordingly quickened.
Patent JP-2000282446-A (JP)
Title: Dam for hydroelectric power generation, and method for generating power and pumping method using the same
Inventor: TAKEI NORIO
IPC: F03B13/06
Filed: 1999-03-30
Abstract: PROBLEM TO BE SOLVED: To provide a dam for hydroelectric power generation that avoids submergence of fertile farmland, woods and the like so that disruption of ecosystems and the environment can be fully prevented. SOLUTION: A plurality of reservoirs are constructed in the form of stairs. The vertically arranged reservoirs 4a, 4b, 4c are communicated with one another by a stepped fishway 10, a fish collecting pool 11 and a submerged hole type fishway 12 which are arranged in sequence from the downstream side. The highest head h1 of each reservoir during pumping is higher than the top end 15 of the fish collecting pool and the submerged hole type fishway 12 and the lowest head height h2 of the fish collecting pool 11 is such that the life of fish is not hindered even with a decrease in level of water in the lower reservoir 4c. Also, a water gate 14 for opening and closing the submerged hole type fishway 12 is provided.
Patent JP-H07280555-A (JP)
Title: Focusing type displacement measuring apparatus
Inventor: KANBE KAZUHIRO
IPC: G01C3/06
Filed: 1994-04-04
Abstract: PURPOSE:To enable prevention of erroneous measurement in the measurement of a transparent object by controlling the operation of a servo circuit so as to limit a moving range of an objective lens. CONSTITUTION:An output light beam of a semiconductor laser 1 is focused on a subject 6 with an objective lens 5 through a polarization beam splitter 2 or the like. Outputs A and B of photodetectors 9 and 10 receiving the reflected light are com-puted with a focus error signal generation circuit 21 to generate an S curve signal as given by (A-B)/(A+B). A servo circuit 22 which inputs the output together with an output of a displacement detector 15 for detecting a displacement value of the lens 5 drives a coil 11 to control the focus of the lens 5. Here, when the subject 6 is a transparent object, a zone judging circuit 231 of a control circuit 23 defines a focus zone near either the surface or the rear thereof to control the circuit 22 so that the focus is not off the range. A limit judging circuit 232 controls the circuit 22 so that the movement of the focus is limited within a physically movable range of the lens 5.
Patent JP-S63255076-A (JP)
Inventor: ISHIKAWA NORITOKI
IPC: A63B102/32
Filed: 1987-04-10
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H09279483-A (JP)
Title: Fiber structure and its production
Inventor: MARUYAMA HISAO
IPC: D01F2/00
Filed: 1996-04-11
Abstract: PROBLEM TO BE SOLVED: To obtain a fiber structure having flexible, tensive and elastic fabric hand by culturing a microorganism capable of producing cellulose on the fibers constituting the fiber structure and covering the surface of these fibers with bacteria cellulose produced. SOLUTION: Rayon filaments are used and the fujiette fabric is treated with a culture medium for a cellulose-producing microorganism as a substrate and the cellulose-producing microorganism is cultured on the surface of the rayon filament fibers constituting the fabric. The rayon filaments are covered with the cellulose produced by the microorganism and washed with a aqueous solution of sodium carbonate at 60 deg.C for 39 minutes, dried at 120 deg.C for 30 minutes to provive fujiette covered with bacteria cellulose.
Patent JP-H0593497-A (JP)
Title: Two-throw shield excavator
Inventor: HAGIWARA HIDEKI
IPC: E21D9/087
Filed: 1991-03-29
Abstract: PURPOSE:To make the manufacture of a two-throw shield excavator easier as well as reduce the cost of manufacture by using a simple structure in which two machines are connected in parallel, one front cylinder is bent to the rear cylinder and advanced while being turned through the other cylinder. CONSTITUTION:Cutters 4 are attached to the frong sides of a shield excavator 2 having a front cylinder 2a and a rear cylinder 2b which are separated from each other, which is integrated with a shield excavator 3, in such a way as to enable both the machines 2 and 3 in a relatively turable manner by the connecting pin. The front cylinder 2a of the excavator 2 is bendably set by a bending mechanism to the rear cylinder 2b. when the front cylinder 2a is bent and advanced, the excavator 2 is advanced through the excavator 3 advancing straight forwards by difference in the excavating directions of the excavators 2 and 3. A two-throw shield tunnel having a spiral form is constructed around the tunnel by the excavator 3 by means of the first excavator 2. In this case, the tunnel can be obtained by using the conventional tapers and the conventional straight segments.
Patent JP-S63254774-A (JP)
Title: Reflecting type photoelectric switch
Inventor: NAKAMURA ARATA
IPC: G01S17/02
Filed: 1987-04-10
Abstract: PURPOSE:To obtain a regression-reflecting type photoelectric switch at a low cost without erroneous operations even for reflection with a mirror surface reflecting body, by using a GaAlAs heterojunction red-light emitting diode as a light projecting element. CONSTITUTION:At the outside of a lenses 2 and 7, a light projecting polarization filter 3 and light receiving polarization filter 6 each constituted by PVA are arranged. A lens cover 4 is coupled to a main body case 11 so as to cover the polarization filters 3 and 6. At this time, a GaAlAs heterojunction red-light emitting diode is used as a light projecting element 7 of a light projecting part. Since the GaAlAs heterojunction red-light emitting diode 1 is used in combination with the PVA visible-light polarization filters, infrared rays are not emitted from the light projecting part. Therefore, erroneous operation does not occur at a mirror surface reflecting body even if the low cost PVA visible-light polarization filters are used.
Patent JP-S5515760-A (JP)
Title: Conversion of steroid compound
Inventor: FUKUI SABUROU
IPC: C12R1/66
Filed: 1978-07-24
Abstract: PURPOSE: To convert a steroid compound into a useful compound, by using a high polymer, wherein specific bacterium bodies or their treated ones are included and immobilized, in a non-aqueous medium.  
     CONSTITUTION: Microorganisms which belong to the genuses Nocardia, Mycobacterium, Rhizopus, Arthrobacter, Corynebacterium, Cunninghamella, Curvularia, Aspergillus, and Bacillus, or their treated ones are immobilized in a high polymer insoluble in organic solvents. A steroid compound is converted into a compound in the presence of the high polymer comprising immobilized microorganisms in a hydrocarbon or a non-aqueous medium of it and a polar organic solvent. The polymer is prepared by mixing the bacterium bodies with a prepolymer, and by crosslinking with actinic rays. According to the method, a high conversion and overall rate of reaction can be obtained with improved stability of the reaction to temperature. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H04301805-A (JP)
Title: Optical adapter
Inventor: YAMADA KIYOHISA
IPC: G02B6/00
Filed: 1991-03-29
Abstract: PURPOSE:To vary the extent of attenuation of an optical signal without independently providing an optical attenuator. CONSTITUTION:Optical connectors 1 are connected and fixed to an optical adapter 4 from both of the right side and the left side. A space part where a filter 5 can be stored is provided in an about center part of the optical adapter 4, and the filter 5 turnable around a supporting shaft 6 provided in parallel with the transmission direction of the optical signal is provided in this space. A part of this filter 5 is mounted correspondingly at the junction part of ferrules 2 of optical connectors 1, and this filter 5 is rotated to continuously change the extent of attenuation of the optical signal.
Patent JP-H0592914-A (JP)
Title: Composition for oral cavity
Inventor: SASAKI IZUMI
IPC: A61K8/37
Filed: 1991-03-29
Abstract: PURPOSE:To obtain a composition for the oral cavity excellent in foaming properties without changing taste in taking a food in mouth after its use. CONSTITUTION:A composition for the oral cavity is obtained by blending 0.01-10wt.%, preferably 0.1-5wt.% one or two or more selected from carboxylates expressed by formula I (R is 4-34C straight-chain or branched chain alkyl or alkenyl; at least either of X<1> and X<2> is CH2COOM and the other may be H; M is H, alkali metal, alkaline earth metal, ammonium, lower alkanolamine cation, lower alkylamine cation or basic amino acid cation) and carboxylic acids expressed by formula II (at least either of X<3> and X<4> is CH2CH2COOM and the other may be H) with other ingredients.
Patent JP-H09201885-A (JP)
Title: Method for detecting acceptable or not of automatic winding of tire belt member
Inventor: KITAJIMA TORU
IPC: B29D30/30
Filed: 1996-04-11
Abstract: PROBLEM TO BE SOLVED: To prevent a defective tire from being produced by a method wherein only in the case in which a side end part of a belt member being in a specific state is confirmed in a specific order by a sensor for detecting the side end part of the belt member, the winding state is judged acceptable. SOLUTION: Sensors 1, 2 wherein center lines K1, K2 of working areas of the sensors themselves are made to pass through left and right side end parts of a belt component B are fixed to a tip part of a servicer S or near thereby. The belt component B is advanced by a right ascending belt angle in the arrow G direction, and wound on a drum D. In the normal case, just before start of winding, the sensor 2 of the left side end part is off, and the sensor 1 of the right side end part is on. Then, from start of winding to just before end of winding, both the sensor 1, 2 are off. Just before end of winding, the sensor 1 is off, and the sensor 2 is on. Then, after end of winding, both the sensors 1, 2 are on. Only a case wherein the states of the sensors 1, 2 are confirmed in the specific order as it is judged as acceptable.
Patent JP-H04299324-A (JP)
Title: Transmission type screen and its production
Inventor: SAITO GORO
IPC: G03B21/62
Filed: 1991-03-28
Abstract: PURPOSE:To obtain a good-contrast picture by providing a black light shield part over the entire surface of a linear projection part, and thus eliminating a decrease in the area of the black light shield part viewed sideward and the reflection of light on the flanks of the linear projection part. CONSTITUTION:The black light shield part 8 is provided on the top surfaces 7a and flanks 7b of the linear projection part 7 to cover the linear projection part 7. The area of the black light shield part 8 increases on the whole when viewed from the front and external light (a) which reaches the black light shield part 8 on the flank 7b sideward is not reflected. Even when this transmission type screen 1 is viewed sideward, there is the black light shield part 8 on the flank 7b of the linear projection part 7, so the contrast does not decreases and an image of good quality can be seen. Photosensitive resin provided at a specific place is denatured under control over the light by a screen main body, the black light shield part 8 can easily be provided covering the linear projection part 7, and the transmission type screen which has the excellent contrast is formed with efficiency.
Patent JP-S5213716-A (JP)
Title: Multielectrode recorder
Inventor: MUTOU RIYOU
IPC: H04N1/23
Filed: 1975-07-22
Abstract: PURPOSE: Permit driving of many needle electrode dividing them into sections without using split back electrodes. 
     COPYRIGHT: (C)1977,JPO&Japio