baber/WOPTO huggingface dataset:
Patent JP-S61237233-A (JP)
Title: Signal recording device
Inventor: FURUKAWA TERUO
IPC: G11B7/00
Filed: 1985-04-15
Abstract: PURPOSE:To perform NRZ recording with small LD power and to reduce variation in bit width by driving a laser with plural repetitive pulse signals corresponding to intervals of inversion of the sign of a transmission line. CONSTITUTION:A recording signal consists of a train of pulses; the pulse width of each signal is tau4 and only the final pulse has width tau5. When the signal is recorded by an LD 4 with this repetitive pulse train, the shape of recording bits on the disk 6 is as shown by (d) and recording bits of an RZ recording system are formed continuously. Further, the LD 4 is driven with the repetitive pulse signal, so the NRZ recording is carried out with small power consumption and the LD power never exceeds a rated value. A large current is applied to the LD in a short pulse period, so the recording bits are formed without the influence of variance in characteristics of the LD nor characteristic variation with the temperature at which the device is used, thereby eliminating the generation of jitters.
Patent JP-H08246295-A (JP)
Title: Weft-insertion nozzle of fluid-jet loom
Inventor: HATTORI KOICHI
IPC: D03D47/32
Filed: 1995-03-10
Abstract: PURPOSE: To provide the subject apparatus having improved enveloping and converging performance of water jet to stabilize the transportation of a weft and avoid the insufficient opening caused by the collision of the water jet to warps and wefts. CONSTITUTION: Water supplied from a water-feeding opening 11 in a weft- insertion nozzle of a water jet loom is guided to a ring chamber 7 formed with the outer circumference of a nozzle body 3 and the nozzle body-attaching hole of a nozzle joint. The water is passed through a fluid inlet port 9 at least having an inlet port having an oblong form directing the major axis in the circumferential direction of the nozzle body 3 and then guided to a tapered acceleration path 13 having a straightening element 15 formed of the inner circumference of the nozzle body 3 and the outer circumference of the tip end of a needle 5. A weft inserted through the yarn-feeding hole 51 of the needle 5 is enveloped and flown with the water stream ejected from an end of the acceleration path 13.
Patent JP-S59204502-A (JP)
Inventor: TANOUCHI TORAO
IPC: B27L5/02
Filed: 1983-05-06
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-S59206690-A (JP)
Title: Vane pump
Inventor: YAMADA NOBUYOSHI
IPC: F15B13/02
Filed: 1983-05-07
Abstract: PURPOSE:To improve efficiency of a pump, by providing a vane so as to be longitudinally moved in a slit along the diameter of a rotor and rotating the rotor while the end of this vane is surely brought in slide contact with the internal wall of a casing by magnetic force of a magnetic provided in a side of the casing. CONSTITUTION:Magnetizing a cylindrical internal wall 12 of a casing 10 by a permanent magnet, a vane 28 made of magnetic material longitudinally moves in a slit 26 in such a manner that it is both attracted to and surely brought in slide contact with the internal wall 12 of the casing by centrifugal force. In such way, the vane 28, being surely in slide contact with the internal wall 12 of the casing, causes a pump to provide its excellent tightness and eliminates a decrease of vacuum by wearing of the vane 28 and the internal wall 12, thus the pump can be used also as a vacuum pump. While a large stroke of longitudinal movement of the vane 28 increases the capacity of a pump chamber 18, enabling the pump to be operated at a low speed, thus the pump, having good durability without causing any trouble or failure, can improve efficiency.
Patent JP-H10273987-A (JP)
Title: Friction hinge
Inventor: SHIBATA TORU
IPC: E05D11/08
Filed: 1997-03-31
Abstract: PROBLEM TO BE SOLVED: To improve durability by fixing a shaft body with a thread groove formed, to one element, fitting a pair of nuts thread-fastened to the thread groove, to the other element, and arranging an energizing means between a pair of nuts. SOLUTION: Nuts 21, 21 constrained only in relative rotation to a cover body 4 by a through hole 41 and free in axial movement through thread- fastening rotation to a shaft body 1. The nuts 21, 21 therefore move axially in the through hole 41 while being put in thread-fastening rotation according to opening/closing of the cover body. At this time, axial pressing force acts between the nuts 21, 21 due to a coil spring 22, and frictional resistance is generated to a contact face part between the thread groove of the nut 21 and the thread groove of the shaft body 1. This frictional resistance become friction torque of the cover body 4 to the shaft body 1, so that the cover body 4 is opened/closed with constant resistance. A friction hinge excellent in wear resistance and generating stable friction torque over a long period of time can therefore be realized.
Patent JP-S535944-A (JP)
Title: Multi-system computer system constituted by simultaneous access prevention system of same data block
Inventor: YOSHIDA MASATO
IPC: G06F12/00
Filed: 1976-07-07
Abstract: PURPOSE: Between processing units which use the same data block commonly, the check circuit corresponding to the data block is provided, so that the multi-system computer system can be obtained which can prevent the simultaneous access of the same data block. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H09273643-A (JP)
Title: Valve structure for hydraulic circuit
Inventor: TAKAHASHI AKIYASU
IPC: F15B13/00
Filed: 1996-04-02
Abstract: PROBLEM TO BE SOLVED: To ensure the reliable operation of a valve all the time by reliably preventing biting of foreign matters in the normal range. SOLUTION: This valve structure is provided with a main body 1, a spool 2 slidably inserted in the main body, and spool driving means 1a, 3 for sliding the spool in the main body. An inflow port 1b to which operating oil is to be supplied and an outflow port 1c from which operating oil is to be allowed to flow are provided on the main body 1, a passage 2d for communicating the inflow port with the outflow port is formed on the spool 2, and the passage of the spool is opened and closed by the main body on the basis of the sliding movement of the spool. The passage 2d of the spool is formed on the outer peripheral surface of a land 2e for normally closing the inflow port in relation to the outflow port in the sliding range of the spool in the operation of the valve so as to extend in the axial direction of the land.
Patent JP-S536042-A (JP)
Title: Fixing device of thermal radiating type
Inventor: SAITOU KINJI
IPC: G03G15/20
Filed: 1976-07-06
Abstract: PURPOSE: To conduct a high efficient thermal fixing by folding a heat generating resistor of thin metal sheet plural times to form a radiating surface at the side edge portion, and by enhancing its rigidity. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S576238-A (JP)
Title: Gas lighter
Inventor: MIYAZAWA KUNIAKI
IPC: F23Q2/30
Filed: 1980-06-16
Abstract: PURPOSE: To obtain a proper and stable height of flame every time of ignition without equipping a handle to adjust the flow of gas, by specifying a nozzle to vaporize and discharge fuel in the gas lighter.  
     CONSTITUTION: With regard to a nozzle 25 asssembled in the valve casing 26, the diameter (d') of a throat 29 is specified to about 30W80μ, the length L is within about 1mm, the diameter D of the spread part 30 on the side of outlet is about 1W 3mm, and the depth is about 3W10mm. By these specifications, the nozzle 25 is raised up by depression of the depressing part 37a of an open and close lever 37, which is provided for operation by a finger. By the depressing, a small space is produced between the spread part on the side of the outlet and a packing 28, and the gas in the fuel cylinder 20 flows out into the throat part 29, where it is contacted and oxidized by the oxidized catalytic wire 40 which is heated by the conductive piece 39 contacting with the contact point 36, and the gas is immediately ignited by the heat of reaction. Therefore, with less fluctuation, flame of about 3W4cm high can be obtained every time of ignition throghout the year without equipping a handle to adjust the flow of gas to the gas lighter. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-2000236470-A (JP)
Title: Method for confirmation of focus adjustment in digital camera
Inventor: MIURA TAKASHI
IPC: H04N5/222
Filed: 1999-02-16
Abstract: PROBLEM TO BE SOLVED: To facilitate confirmation of focusing in a digital camera. SOLUTION: A camera operation input section 12 is provided with a changeover function between a usual finder image and a focusing confirmation image, an adjustment function of the magnification of the focusing image, an adjustment function of the center position of the focusing image so as to facilitate the confirmation of the focusing by magnifying and displaying a noted part at a proper magnification in the case of confirming the focusing.
Patent JP-H11262271-A (JP)
Title: High-frequency power source
Inventor: KATO TSUTOMU
IPC: H05H1/46
Filed: 1998-03-12
Abstract: PROBLEM TO BE SOLVED: To prevent the failure of elements which constitute an inverter. SOLUTION: When a breaker 10 is closed, the voltage (15 V) of a transistor driving power source 23 rises, but a voltage VA at a point A and a voltage VB at a point B (detected voltage) do not. Thus, an LED 21 of a photocoupler 20 remains in an 'off' state, emitting no light. With a phototransistor 22 in an 'off' state, the voltage of the collector of the phototransistor 22, i.e., a voltage VC at a point C, becomes 15 V, the voltage of the driving power source 23. A diode Da turns into an 'on' state, and switches SW6, SW5 are interlocked to turn them into an 'off' state. A three-phase rectifier circuit 4 consisting of SCR1, SCR2, SCR3 and diodes D4, D5, D6 and a switching signal generating circuit 4 stop operating, thereby causing a current to stop flowing in switching transistors.
Patent JP-S557170-A (JP)
Title: Replacement method of conveyor belt
Inventor: FUKUI KUNIO
IPC: B65G15/00
Filed: 1978-06-26
Abstract: PURPOSE: To make possible replacement of belt with the drum positional outside the conveying line by such a construction that the worn and the new belt are fayed after being stood once by a guide puley, changed of their direction, and returned to the earlier position, and that the worn belt is then wound away and the new belt is placed into use.  
     CONSTITUTION: An end of the worn belt 2 which was cut, is drawn out through  guide puleys 6, 7, 8, and wound up by the take-up drum 4. The leading edge of the  new belt 3 is introduced from the supply drum 5 through guide puleys 9, 10, 11 and  fayed with the other end of the cut, worn belt 2. Then, drive of the take up drum 4  can wind up the worn belt 2 and place the introduced new belt 3 onto the conveying line. Thus, changing the direction with the puleys 7, 10 upon arranging the  puleys 6, 11 parallel to the belt conveyor A and the puleys 8, 9 parallel to the  drums 4, 5, makes possible the replacement of belt without installing a drum on the  conveying line. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H11257945-A (JP)
Title: Probe type shape measuring apparatus and shape measuring method
Inventor: SHINPO KOHEI
IPC: G01B21/20
Filed: 1998-03-11
Abstract: PROBLEM TO BE SOLVED: To estimate the shape of a surface to be measured from measured data precisely, by the use of a probe type shape measuring apparatus which measures the contour shape of a free curved surface. and a shape measuring method using the apparatus. SOLUTION: As sequence-of-points data to be obtained by representing by a rectangular coordinate system the operation locus of a probe 2 as against an arbitrary surface 1a to be measured, first sequence-of-points data, and second sequence-of-points data at positions shifted by a minute amount in the perpendicular direction to that of scanning of the first sequence-of-points data are found, by the scanning of the probe 2 by the user setting. For each point of the first sequence-of-points data, a group of several points in the vicinity of each point of the first sequence-of-points data from the first and second sequence-of-points data is selected, and the group of points is approximated by a plane, and the normal vector of the approximate plane is found.
Patent JP-H05237592-A (JP)
Title: Full mold casting method
Inventor: KOSUGI TAKEO
IPC: B22C9/04
Filed: 1992-03-02
Abstract: PURPOSE:To prevent the development of, what is called, gas flaw defect as the trouble in the performance and quality in a casting and the generation of combustible gas to be dangerous to the work the process of casting and to restrain the generation of soots, by which the value of product is deteriorated, as less as possible. CONSTITUTION:In a full mold casting method, before molten metal is poured, pure oxygen gas or high concn. oxygen gas is introduced into a consumable pattern 2 composed of combustible foam body material through a pouring hole 3 or a gas exhaust hole 5 in the sand mold or through the other passage and the consumable pattern is burnt with an ignition and successively, the molten metal is poured.
Patent JP-H08278680-A (JP)
Title: Image forming device and its control method
Inventor: TANIMOTO KOJI
IPC: G03G15/01
Filed: 1995-04-05
Abstract: PURPOSE: To provide a transfer type image forming device in which color slur ring is prevented from occurring in the case of superposing images. CONSTITUTION: The deviation of the position of a test pattern carried on a carrying belt 51 from a reference position is detected by 1st and 2nd registration sensors 59 and 60 formed at a specified interval in a main scanning direction, and image data is supplied from a memory to a solid-state scanning head. In such a case, exposure timing in the main scanning direction and a subscanning direction is changed in accordance with the detected deviation, and the positional information and the density information of the image data continuous in the subscanning direction are changed in accordance with the degree of the detected inclination. Thus, the color slurring of a color image obtained by superposing the images of four colors is removed.
Patent JP-S60223613-A (JP)
Title: Connecting method of copper and copper alloy tube
Inventor: KUWABARA TAKAOMI
IPC: B21C37/29
Filed: 1984-04-20
Abstract: PURPOSE:To improve workability and to solidify a joining by piercing a through hole at the branching part of a main pipe and by welding a flange body projecting outside by a certain width with forming work on a subordinate pipe and with contact thereto in the condition to cover the peripheral face of the through hole. CONSTITUTION:A through hole 5 is pierced on a main pipe 1' and the diameter thereof is taken as equivalent to or slightly smaller than the inner hole diameter of a subordinate pipe 2'. The end edge part of the pipe 2' is widen out at a certain angle and inserted into female die having a curvature of the same diameter with the main pipe 1' to be joined and a flange body 10 having a certain curvature is formed with the press work. A silver solder 11 is attached in an annular shape on the peripheral face of the upper part of the through hole 5 on the main pipe 1' and the joining by welding is performed with covering by the flange body 10 and heating from the upper side.
Patent JP-S524763-A (JP)
Title: Phase modulation receiving device
Inventor: OOTA AKIHISA
IPC: H03G3/20
Filed: 1975-06-30
Abstract: PURPOSE: To realize stable change-over of loop gain by adding a simple AGC circuit to a phase modulation receiving device by means of the property of α phaes modulation. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H10274953-A (JP)
Title: Drive control circuit for plasma display panel
Inventor: ARIMOTO HIRONOBU
IPC: G09G3/296
Filed: 1997-03-31
Abstract: PROBLEM TO BE SOLVED: To efficiently store operation sequence. SOLUTION: An address of a pattern memory 21 and the number of its repeated times are stored in a sequence memory 20. On the other hand, the pattern data for generating a control signal and a time count being its dulation are stored in the pattern memory 21. When the address of the sequence memory 20 is read out, the pattern data of the corresponding pattern memory 21 and its time count are read out, and the control based on them is performed. Then, the pattern data are successively read out until the pattern data written in with a specified value as the time count. Then, the read-out of this one block is performed by the number of repeated times in the sequence memory 20, and the pattern address of the next address of the sequence memory 20 is read out.
Patent JP-H09267461-A (JP)
Title: Production of decorative sheet
Inventor: HANAMOTO KEISHI
IPC: B32B33/00
Filed: 1996-04-03
Abstract: PROBLEM TO BE SOLVED: To obtain a decorative sheet susceptible to the formation of embossed patterns synchronizing to printing patterns, having a real feeling in the reproducibility of unevenness and stable in adhesive strength at a time of the lamination to plywood or the like. SOLUTION: A thermoplastic resin is melted under heating to be formed into a film to be compounded and integrated with a base material sheet 11 high in heat resistance having a printing layer 12 as a surface layer 13 and embossed patterns are applied to the surface layer 13 in synchronous relation to the printing patterns of the base material sheet 11. Since the thickness of the base material sheet 11 can be made thin and the surface layer 13 can be made thick by the quantity corresponding to thickness reduction, a decorative sheet excellent in the reproducibility of a coating feeling and embossed patterns can be obtained. Since embossed patterns are not formed to the rear surface of the decorative sheet, a bonding area at a time of the lamination to plywood is increased to stabilize adhesive strength.
Patent JP-S61238852-A (JP)
Title: Metallic powder-containing polymer composition
Inventor: KAGEYAMA YOSHITERU
IPC: C08K3/02
Filed: 1985-04-16
Abstract: PURPOSE:To provide the titled compsn. having both excellent stability agent oxidation and properties inherent to metal, consisting of a metallic powder contg. a phosphate ester compd. and a silane coupling agent compd. deposited thereon and a polymer. CONSTITUTION:0.01-2.0wt% phosphate ester compd. of formula I (wherein R<1>-R<3> are each H, alkyl, aryl, polyoxyethylene ether, polyoxyethylene aryl ether, provided that at least one thereof is a group other than H) and 0.01-2.0wt% silane coupling agent compd. of formula II (wherein n is 0, 1; R<1> is amino, mercapto, vinyl, epoxy, methacryloxy; R<2>, R<3> are each a 1-6C satd. hydrocarbon group, ether) are deposited on a metallic powder having an average particle size of 0.01-100mu. 10-70pts.vol. resulting metallic powder is blended with 100pts.vol. polymer (e.g. PE).
Patent JP-H10275084-A (JP)
Title: Solution device and method for restriction satisfaction problem, and system construction device and method
Inventor: TAMURA SHINSUKE
IPC: G06F19/00
Filed: 1997-03-31
Abstract: PROBLEM TO BE SOLVED: To fast solve a restriction satisfaction problem of a large scale by analyzing a combination of alternate plans that satisfies the restriction among the partial alternate plans for each decomposed partial set. SOLUTION: An alternate plan set generation part 1 decomposes a problem inputted from a path 3 into partial sets, and a solution calculation part 2 calculates a solution of the problem from the decomposed partial sets. The part 1 decomposes a given problem into the partial sets having two alternate plans at most at every part. Both parts 1 and 2 are connected to each other via the paths 4, 5 and 7. The part 2 analyzes a combination of alternate plans that satisfies the restriction among the partial alternate plans for each decomposed partial set and outputs the solution calculated from the partial sets through a path 6. Thus, a restriction satisfaction problem of a large scale is fast solved.
Patent JP-H11282184-A (JP)
Title: Electrophotographic photoreceptor and its production
Inventor: FUJII MAKOTO
IPC: G03G5/082
Filed: 1998-03-27
Abstract: PROBLEM TO BE SOLVED: To provide a high-sensitivity selenium-arsenic based electrophotographic photoreceptor capable of obtaining excellent printing density for a laser beam printer, and its producing method. SOLUTION: In a stage where atmospheric pressure is obtained by breaking a vacuum in a vacuum-depositing tank after a photoreceptor layer is film-formed by vacuum-depositing selenium-arsenic based alloy on the surface of a conductive base substance in high vacuum in the vacuum-depositing tank; inert gas is leaked into the vapor-depositing tank first so as to make the vacuum low to some extent, and continuously, air is leaked to obtain the atmospheric pressure. Thereafter, by performing aging to the photoreceptor taken out from the tank, that is, leaving it in bright and dark environment, the photoreceptor in which the oxidation degree of As in the surface of the photoreceptor layer is within the range of 30% to 35% and which is excellent in the printing density is obtained.
Patent JP-H10273525-A (JP)
Title: Alkaline solution-soluble polymer
Inventor: KAWAMURA SHIGEO
IPC: C08G63/52
Filed: 1997-03-31
Abstract: PROBLEM TO BE SOLVED: To obtain a polymer soluble in an alkaline solution, by reacting a tetracarboxylic acid dianhydride and a diol and reacting a reaction mixture of these compounds and a compound selected from an alcohol, an amine and an acid anhydride which have at least one unsaturated bond. SOLUTION: One equivalent of a tetracarboxylic acid dianhydride represented by formula I, wherein R1 is a tetravalent organic group, such as 1,2,3,4- cyclobutanetetracarboxylic acid, and 0.5 to 1.5 equivalent of a diol represented by formula II, wherein R2 is a divalent organic group, such as 2,2-bis(4- hydroxycyclohexyl)propane, are heated and reacted in a solvent such as propylene glycol monomethyl ether acetate to produce a polymer represented by formula III, wherein R1 and R2 are as defined for formula I and II, respectively. Subsequently, into a reaction mixture containing the polymer, a compound selected from among an alcohol, an amine and an acid anhydride which have at least one unsaturated bond, such as 2-hydroxyethyl acrylate, 4-amino-4'- methoxystilbene and maleic anhydride, respectively, is added and reacted as a capturing agent, to provide a desired polymer.
Patent JP-H05327246-A (JP)
Title: Electronic circuit package
Inventor: SEKIHARA KAZUHIKO
IPC: H05K7/14
Filed: 1992-04-03
Abstract: PURPOSE:To reduce the impedance of a power supply for an electronic circuit package and suppress the generation of noise due to the connection of live wires. CONSTITUTION:An electronic circuit package includes a power supply connector 3 a ground connector 4 on opposite lengthwise sides of an electronic circuit package 1, and a signal connector 6 for the transfer of a signal on the insertion side. The power supply connector 3 and the ground connector 4 are fitted into a mother board 13 on which a power supply connecting guide rail 11 and a grounding guide rail 12 to be slided are mounted, and power is supplied to the electronic circuit package 1 through these guide rails to operate an electronic circuit 5. With such arrangement, a power supply impedance in the electronic circuit package 1 is prevented from varying depending on its position and also the generation of noise in the electronic circuit package 1 at the time of connection of a live wire is suppressed.