baber/WOPTO huggingface dataset:
Patent JP-H02240837-A (JP)
Title: Defocus detector for optical head
Inventor: UCHINO AKIHIRO
IPC: G02B7/28
Filed: 1989-03-15
Abstract: PURPOSE:To simplify the adjustment of an optical system and to prevent generation of an error due to temperature change or the like by detecting defocusing depending on a reflected luminous quantity from a focus measuring face at focusing on an information recording face and a reflected luminous quantity from a normal focus measuring face. CONSTITUTION:When a focus 9a of a laser beam of one wavelength in the laser beam radiated from a 2-wavelength hybrid semiconductor laser 1 resides on an information recording face, a reflected luminous quantity of a laser beam with other different wavelength focusing a focal point 9b on a focus measuring face 12 formed on an optical disk 8 is detected by a photodetector 14, held by signal processing circuits 17, 18, and the reflected luminous quantity thus held and the reflected luminous quantity from a focus measuring face 12 detected by the photodetector 14 at an optional time are compared to detect the quantity and direction of defocusing. Through the constitution above, since the defocus detection signal is obtained by the entire luminous quantity, the optical adjustment for focusing is not required and even when position deviation of an optical component takes place due to temperature change or vibration, no error is caused in the detection signal.
Patent JP-H04240725-A (JP)
Title: Etching method
Inventor: NISHIBAYASHI YOSHIKI
IPC: H01L21/302
Filed: 1991-01-24
Abstract: PURPOSE:To provide a method for etching a diamond so as to permit the surface to be flat without generating ruggedness by arranging a potential control metal plate between plasma and the surface of the diamond and etching the diamond while applying a voltage on the metal plate and controlling the plasma potential. CONSTITUTION:When reactive ion etching a diamond 8 by plasma which contains oxygen, a potential control metal plate 9 is arranged between the plasma and the surface of the diamond 8, and the diamond is, etched while applying a voltage on the metal plate 9 and controlling the plasma potential. For example, electrodes 2 and 3 are provided vertically facing each other in a vacuum chamber 1, and the diamond sample 8 is mounted on the electrode 2 which connects a high frequency power source 6 and a matching box 7 in series. Then, directly above the electrode 2, the rotatable holed metal plate 9 which has mesh structure or various pierced holes is arranged. Etching is performed by only using oxygen as etching gas.
Patent JP-H09249864-A (JP)
Title: Adhesive composition and paper tube using the same
Inventor: HAYAZAKI TATSUO
IPC: B31C3/00
Filed: 1996-03-18
Abstract: PROBLEM TO BE SOLVED: To obtain an adhesive composition excellent in initial adhesive strength and water resistance, enabling an adhesive membrane thereof to have a high elastic modulus and suitable for the production of a paper tube by winding a cardboard around a metallic mandrel by adding a specified ratio of an inorganic filler, boric acid and a specific water-soluble compound to a specified resin. SOLUTION: This adhesive composition is obtained by adding (B) 80-170 pts.wt. inorganic filler such as a clay, aluminium hydoxide, calcium carbonate, kaolin and talc, (C) 1.0-5.0 pts.wt. boric acid and (D) 35-70 pts.wt. water-soluble compound selected from a carboxyl-modified polyvinyl alcohol, a starch and a dextrin to (A) 100 pts.wt. resin content in a vinyl acetate resin-based emulsion. The component A is obtained by, for example, using 10-50wt.% vinyl acetate, 2-20wt.% polyvinyl alcohol and 0.05-5.0wt.% polymerization initiator and polymerizing the vinyl acetate.
Patent JP-H02242193-A (JP)
Title: Fuel assembly for boiling water nuclear reactor
Inventor: NISHINO YUJI
IPC: G21C3/32
Filed: 1989-03-15
Abstract: PURPOSE:To improve an ultimate thermal output per one single fuel assembly by attaching a cooling water guiding measure which guides a cooling water to an outer circular direction of the fuel assembly, at an outer circle of a water channel. CONSTITUTION:Guide plates 100 is attached so as to incline to an outer circular and upward direction of a water channel W, to each of the four sides of the water channel W. The attaching height in this embodiment is a height corresponding to a several centimeters upstream side position from an upper end of the sixth spacer, for instance. By attaching the guide plates 100 as shown in this embodiment, a part of cooling water which tends to flow excessively in subchannels close to the water channel W, flows to a direction shown by the arrow mark in the figure, along the guide plates 100, and is disturbed to the outer circular direction of the fuel assembly. In other words, the cooling water is diffused to the outer circular direction, without generating a deviated flow around the water channel W.
Patent JP-H09255306-A (JP)
Title: Hydrogen separating membrane
Inventor: OGAWA MAKOTO
IPC: B01D53/22
Filed: 1996-03-18
Abstract: PROBLEM TO BE SOLVED: To provide a hydrogen separating membrane which can be produced at a lower cost as compared with for a hydrogen separating membrane of the conventional structure, contributes to an improvement in a hydrogen production capacity and from which either of flat plate type and tubular type as product shapes are easily producible. SOLUTION: This hydrogen separating membrane is produced by superposing hydrogen permeable metallic foil on the surface of a metallic porous supporting body formed by superposing metallic reinforcing plates having plural hydrogen flow holes on each other. The holes of the metallic reinforcing plates have rectangular or analogous shapes and are so formed that the major axes of the holes of the metallic reinforcing plates in contact with each other intersect with each other This hydrogen separating membrane is producible at the lower cost than for the hydrogen separating membrane of the conventional structure and contributes to the improvement in the hydrogen production capacity. Further, the easy production of either of the flat plate type and tubular type as the product shapes is possible.
Patent JP-S61221127-A (JP)
Title: Immunoglobulin
Inventor: KUBOTA TETSURO
IPC: C07K16/00
Filed: 1985-03-27
Abstract: NEW MATERIAL:An immunoglobulin (having a molecular weight of about 70-80 KD and having antibody activity). USE:Immunoglobulin useful for the diagnosis and remedy of various diseases, especially autoimmune diseases, rheumatism, etc. PREPARATION:A cell capable of producing monoclonal antibody against various cell nucleus components is produced by the cell fusion of a spleen cell of MRL/I mouse or B/WFI mouse and a mouse myeloma cell. The obtained cell is cultured, and the objective immunoglobulin having an antibody activity and a molecular weight of 70 KD is separated from the supernatant liquid. As an alternative method, an immunoglobulin having an antinucleus antibody activity and a molecular weight of about 80 KD is separated from a polyclonal antibody in the serum of a patient of autoimmune disease such as SLE, PSS, MCTD, etc.
Patent JP-H10252448-A (JP)
Title: Exhaust emission control device of diesel engine for vehicle
Inventor: KANAZAWA HIROYOSHI
IPC: F02D45/00
Filed: 1997-03-14
Abstract: PROBLEM TO BE SOLVED: To prevent the burning out of a solenoid valve by conducting electricity into the solenoid valve from a battery mounted on a vehicle during a regeneration period only to open the valve, conducting electricity to an electrical heating means and an air supply means, and supplying air for regeneration which is heated to a filter to burn collected particulates for the regeneration of the filter. SOLUTION: Exhaust gas which is exhausted from a diesel engine 100 is introduced into a filter storage case 1, particulates in the exhaust gas are caught by a filter 2, and the purified exhaust gas is exhausted from a tail pipe 105. To regenerate the filter 2, a switch 14 is turned on while an engine is stopped, and a controller 9 finds a duty ratio of a solenoid valve 5 based on battery voltage at the time to PWM-control the solenoid valve 5 based on the duty ratio. Consequently, the solenoid valve 5 is smoothly opened irrespective of fluctuation of battery voltage. Moreover, hot air is generated by conducting electricity to a heater 3 and a motor M to burn the particulates for the regeneration of the filter 2.
Patent JP-H05236366-A (JP)
Title: System control system for av equipment
Inventor: SAITO MITSUMASA
IPC: H04N5/44
Filed: 1992-02-18
Abstract: PURPOSE:To output a series of operation codes which actuate an AV system by learning the operation codes and the connecting relation of various peripheral equipments (AV equipments) connected to a main AV equipment (TV receiver). CONSTITUTION:In e setting mode, the output destinations of remote controllers RC1, RC2... which operate various AV equipments 2, 3, 4... are received at one time by a TV receiver 1 serving as a main AV equipment and made to learn by an AV controller contained in the receiver 1. The operation commend data on the peripheral equipments obtained by the learning are stored in a system operation placement memory together with the connecting relation of the peripheral equipments. Then, a series of operation data on an AV system are outputted via a control bus CB based on the data stored in the system operation placement memory.
Patent JP-S54152854-A (JP)
Title: Direct-heated cathode
Inventor: TAKANASHI YUKIO
IPC: H01J1/16
Filed: 1978-05-23
Abstract: PURPOSE: To prevent the thermal malformation cuased by the temperature increment for the spring by adhering the low resistor on one surface of the spring or attaching the resistor with the partial space secured, and thus to avoid occurrence of the noise or the disturbed image as well as to prevent incapability of the luminance modulation.  
     CONSTITUTION: The low resistor such as plate substnace 10 is adhered to the outer surface of springs 5 and 6 each of the direct-heated cathode. The conventional material is used for spring 5 and 6, and substance 10 is composed of Ni, Cu and Al featuring the low DC substance with no spring tension nor bimetal effect caused. In such constitution, the DC resistance becomes 1/2 although the thickness of substance 10 is 1/10 that of spring 5 and 6, and substance 10 functions as the DC bias circuit. As a result, the voltage drop and thus the temperature rise are reduced for spring 5 and 6 themselves, and accordingly the thermal malformation and variation of the spring tension never occur. Thus, filament 7 never loses its tension to prevent occurrence of slackening. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S59184822-A (JP)
Title: Fluidic flow meter
Inventor: KOUNO AKIO
IPC: G01F1/20
Filed: 1983-04-05
Abstract: PURPOSE:To obtain a measuring performance for practical use as a domestic meter by forming all flow paths connected to a control nozzle of a fluidic flow meter, by ''Teflon'' or fluorinated graphite. CONSTITUTION:A titled flow meter is formed by connecting a duct reduced part 2, a jet nozzle 3 and a duct expanded part 5 in said order in the flow direction. On the boundary part of this jet nozzle 3 and the duct expanded part 5, a pair of cntrol nozzles 6a, 6b are formed in the direction falling at almost right angles to the jet directionof the jet nozzle 3, and also so as to be opposed to each other. In such a fluidic flow meter, the duct reduced part 2, the jet nozzle 3, the duct expanded part 5, both the control nozzles 6a, 6b and all flow paths 7a, 7b connected to both those control nozzles 6a, 6b are formed by ''Teflon'' or fluorinated graphite.
Patent JP-H0813254-A (JP)
Title: Hollow carbon yarn by fluidized vapor-phase growth method
Inventor: ARAKAWA KOHEI
IPC: D01F9/127
Filed: 1995-03-20
Abstract: PURPOSE:To obtain a material useful as a reinforcing material for composite materials, having raised denseness of carbon fiber and improved mechanical strength by forming hollow carbon fibers by a fluidized vapor-phase growth method. CONSTITUTION:In a fluidized vapor-phase growth method, a ferrocene of an organic transition metal compound is stored in a carburetor 42 and benzene as a carbon compound is stored in a carburetor 46. A reaction tube 50 is heated by a heater 52 while sending a nitrogen gas from a gas introduction pipe 49 to the reaction tube. When the reaction tube reaches a fixed temperature, a hydrogen gas is introduced from the gas introduction pipe 49 into the reaction tube to replaces the nitrogen gas. Then, hydrogen sulfide gas is sent from the carrier gas introduction pipes 40 and 44 to the carburetors 42 and 46 and the ferrocene and benzene and the hydrogen gas containing hydrogen sulfide as a carrier gas are introduced to the reaction tube 50 to form carbon fibers in a fluidized vapor phase. The carbon fibers are collected by a fiber collecting device 54 composed of a metal fiber filter to give the objective hollow carbon fibers comprising >=90% of the formed carbon fibers containing ultrafine metal particles at the tips of the fibers and having 30-60Angstrom  hollow inner diameters.
Patent JP-H02267325-A (JP)
Title: Supporting structure of power turbine
Inventor: ROORENSU BATORAA
IPC: F02C3/067
Filed: 1990-03-14
Abstract: PURPOSE: To shorten a rotor supporting structure by concentrically arranging two rotors to be connected to an annular arraying bodies of turbine blades to be rotated in the reverse directions, bearing a front part of the inner rotor on a stationary structure, and bearing an outer rotor on a rear part of the inner rotor. CONSTITUTION: In a fan jet engine 20 having no duct, including a power turbine part 25 having front and rear double reversible fan blades 22, 24 extending outward in the radial direction and, first and second double reversible rotors 26, 28 connected to a plurality of annular arraying bodies of turbine blades 30, 32 which are to be reversely rotated are provided on the power turbine part 25, and they are connected to respective fan blades 22, 24. A front structure supporting part 50 provided on the rotor 26 is rotatably supported to a central stationary structure 52 through bearings 54, 56. The rotor 28 is concentrically arranged around the rotor 26 and rotatably supported on the rear part 60 of the rotor 26 through annular bearings 62, 64.
Patent JP-S51135328-A (JP)
Title: Temperature compensating circuit
Inventor: NISHIMURA MASARU
IPC: G06K7/00
Filed: 1975-05-19
Abstract: PURPOSE: A temperature conpensating circuit of reading circuit which removes an influence which shares with a fluctuation in temperature characteristic of photoelectric conversion element by using both elements as a photoelectric conversion element for a signal and a photoelectric conversion element for a reference. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-S59210022-A (JP)
Title: Sustained release theophylline pharmaceutical
Inventor: UKIGAYA TADASHI
IPC: C07D473/08
Filed: 1983-04-09
Abstract: PURPOSE:To obtain industrially and advantageously the titled pharmaceutical useful as a symptomatic therapeutic agent for bronchial asthma, by compression molding a uniform mixture containing theophylline and ethyl cellulose in a specific proportion by the direct compression method. CONSTITUTION:A sustained release theophylline pharmaceutical obtained by compression molding a mixture consisting essentially of theophylline and ethyl cellulose by the direct compression method to give a tablet. The pharmaceutical is characterized in that the proportion of the theophylline and ethyl cellulose in the above-mentioned tablet is >=75wt%, and the amount of the ethyl cellulose is 5-200pts.wt., preferably 20-100pts.wt. based on 100pts.wt. theophylline. The titled pharmaceutical is stable and has good sustained release properties, a given tablet hardness (0.5-12.0kg/cm<2>) and further improved moldability. The direct compression method provides easy operation, and the method is economically advantageous.
Patent JP-H05224221-A (JP)
Title: Method for etching thin film
Inventor: YOSHIOKA TOSHIFUMI
IPC: G02F1/1343
Filed: 1992-02-17
Abstract: PURPOSE:To provide the method for etching a thin film which prevents the generation of imperfect etching and greatly improves the yield of an etching stage. CONSTITUTION:A spray etching method which etches the thin film by passing the substrate in a spray chamber where an etching liquid 5 is ejected from nozzle 4 is used in the etching stage of the method of forming the thin film on the substrate and forming patterns by photolithography. The etching liquid 5 sprayed from the nozzles 4 uniformly wets the surface of the substrate 1 without splashing of the etching liquid 5 and depositing of the liquid on the substrate 1 before the substrate is immersed into the etching liquid 5 at the beginning of immersion of the substrate 1 by the etching liquid 5. The continuous etching is thus executed.
Patent JP-S55157445-A (JP)
Title: Framework device
Inventor: TAKADA TOSHITSUGU
IPC: B23P19/00
Filed: 1979-05-18
Abstract: PURPOSE: To obtain a framework device where the kind of materials can be easily changed for  framework devices like panel frames, by allowing the rotary drive of an axial member to move  shifting members left-rightward and simply changing positions of a top face press member and  inner press members.  
     CONSTITUTION: Each of frame materials that form a frame 7 and a vertical barrel edge 7d are  placed on an assembly mount like conveyors. In accordance with dimensions of the frame 7, an  axial member 3 is rotated to adjust lateral positions of shifting members 2, lower an elevation  member 1 under the condition with inner press members 8 in a horizontal direction, allow top  face press members 6 to press onto the corner parts where an upper frame material 7a, lower  frame material 7b and vertical frame materials 7c of the frame 7 are intersected simultaneously  allow a top face press member 19 to press the vertical barrel edge 7d. Then the inner press members 8 are shifted from the horizontal position to the vertical position by a pressing cylinder 16,  and the vertical frame materials 7c are put and positioned between the inner press members 8 and  outer positioning members 20. Under this condition, connection ends of the frame materials are  fixed by a nail and welded to perform the framework. After an assembly of the frame 7, the inner  press members 8 are returned to the former position to raise the elevation member 1 and perform  a standby operation till the next work. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S63228036-A (JP)
Title: Spectrometer
Inventor: NODA KAZUHIKO
IPC: G01J3/06
Filed: 1987-03-17
Abstract: PURPOSE:To obtain the sine value of an angle of rotation directly by holding the center of rotation of a disk and the point contact point between a needle and a pin at a constant interval. CONSTITUTION:Light from a light source 1 is made into parallel luminous flux by the slit SL of a collimator system 2 and a lens system L1 and the luminous flux is made incident on diffraction grating G. The diffracted light beam from this grating G is observed by using a telescope 3 including a lens system L2. Further, a pin 6 is fixed on the rotary disk 5 at its periphery and abuts on the movable element 8 of a length detecting means 7 fixed outside the disk 5, and the movable element 8 enters linear motion according to the rotation of the pin 6. Further, the movable element 8 is movable at right angles to a radius perpendicular to the bisector surface of the optical axis of the collimator L1 and the optical axis of the telescope L2. Then the sine value of the angle theta of rotation of the disk 5 to the radius is measured, so the movement quantity of the movable element 8 is measured as the displacement X of the movable element 8 based upon the intersection of the radius and the motion path of the movable element 8 as a reference.
Patent JP-H08230931-A (JP)
Title: End cap for batter steel pipe
Inventor: YONETANI TOKUO
IPC: E04G25/00
Filed: 1995-02-23
Abstract: PURPOSE: To provide an end cap for a batter steel pipe so that water into the steel pipe can be released certainly and naturally out of the steel pipe. CONSTITUTION: An end cap for a batter steel pipe is such that is composed of a bowl-like part 5 to be put into the inside of the batter steel pipe 2 and a flange extending from the periphery of the bowl-like part 5 and contacting the end 2a of the steel pipe, and a water-releasing groove 10 is provided at the underside of the flange contacting the end 2a of the steel pipe. With the cap fitted into the end of the steel pipe, water inside the steel pipe can be released to the outside through the water-releasing groove 10 between the internal face 2b of the steel pipe 2 and the bowl-like part 5.
Patent JP-S59185571-A (JP)
Title: Weld line follow-up device
Inventor: YAMADA AKIRA
IPC: B23K9/02
Filed: 1983-04-06
Abstract: PURPOSE:To detect a weld line without contact by discriminating a shift of the right and left of a welding torch from a characteristic of a current differential value obtained by differentiating a welding current in the weaving center. CONSTITUTION:A titled device is constituted of a detecting part 25 for detecting a welding current flowing to a welding torch 11, a position detector 21 for detecting a weaving position of the welding torch 11, a differentiating circuit part 26 for deriving the polarity of a current differential value by differentiating the welding current detected by the detecting part 25 in the weaving center shown by a position signal from the position detector 21, a polarity storage part 27 for storing temporarily the polarity of each current differential value, a logical discriminating part 28 for discriminating that the welding torch 11 is shifted to the right if the polarity of - is obtaind first and subsequently the polarity of + is obtained, and discriminating that on the contrary, the welding torch 11 is shifted to the left if the polarity of + is obtained first and subsequently the polarity of - is otained, and an instructing part 29 for sending a shift correcting signal to a driving source 6 for moving the welding torch 11 in accordance with a discriminating signal.
Patent JP-H09229635-A (JP)
Title: Actual space length measuring method by photographing means, calibrating method in optical system and reference standard used for calibration in optical system
Inventor: HAYASHI KENICHI
IPC: G11B5/00
Filed: 1996-02-23
Abstract: PROBLEM TO BE SOLVED: To establish a method for precisely measuring the actual space length per picture element, with which it is possible to make measurement and adjustment of the photographing range, measure the distortion of the image, and make correction of the distorted image by means of feedback of the obtained results. SOLUTION: The mean number of lattices per picture element row in a photographing means is calculated for any arbitrary region in the inspection region of a lattice image (103), and the resultant is multiplied by the lattice pitch so that the actual space length of the region in a certain direction is calculated (104), and the obtained value is divided by the number of picture elements in that direction so as to give the actual space length per picture element of the lattice image (105). This enables calculation of the photographing means (106), adjustment of the photographing range, calculation of the distortion distribution of the image obtained (107), and correction of the image using these (109), so that it is practicable to precisely measure the object through calibration in the optical system in use.