baber/WOPTO huggingface dataset:
Patent JP-H03119214-A (JP)
Title: Wave dissipating device
Inventor: KATORI SADAKAZU
IPC: E02B3/06
Filed: 1989-09-29
Abstract: PURPOSE:To prevent diffusion of pollution and to enable damping of waves by a method wherein a wave dissipating member formed of a fiber material having voids is supported by a support member, and a pollution preventing film is mounted. CONSTITUTION:A wave dissipating member 21 formed of a fiber material having voids is covered with a net member to form a wave dissipating unit 2. Further, a frame member 5 is formed of a hollow member 51 having both ends being closed. The wave dissipating unit 2 is contained in the frame member 5 to form a wave dissipating device body 1. Further, one end of a pollution diffusion preventing film 3 is mounted to the wave dissipating device body 1, and an anchor 31 is mounted to the other end of the preventing film 3.
Patent JP-H11138868-A (JP)
Title: Printing head
Inventor: KATO YUKIHISA
IPC: B41J3/54
Filed: 1998-09-10
Abstract: PROBLEM TO BE SOLVED: To improve the printing quality by improving the positioning accuracy among a plurality of needle rows in a printing head, and to reduce the number of parts. SOLUTION: A printing head comprises a nose 32 having a guide for arranging two needle rows, a solenoid base 34 having a core for electromagnet for each needle, a plurality of armatures for projecting the tail end of the needles at the time of attaching with the core provided for each needle, and an armature base for holding the armatures with the solenoid base. The solenoid base 34 can be provided substantially with a single member and the nose 32 and the armature base can also be provided substantially with a single member.
Patent JP-H09101492-A (JP)
Title: Waveguide type optical control device and its production
Inventor: OKABE YUTAKA
IPC: G02B6/12
Filed: 1995-10-03
Abstract: PROBLEM TO BE SOLVED: To efficiently apply an electric field on an optical waveguide by providing the optical waveguide installed on a substrate having an electro-optical effect and providing electrodes for impressing an electric field to the optical waveguide at grooves which are installed on the substrate by holding the optical waveguide therebetween. SOLUTION: The waveguide type optical control device is provided with the optical waveguide 12 installed on the substrate 10 of lithium niobate (LN) having an electro-opical effect. An electrode 14 composed of a first electrode 14a and a second electrode 14b for impressing the electric field to the optical waveguide 12 is formed at the grooves which are installed on the substrate 10 by holding the optical waveguide 12 therebetween. As the substrate 10, a substrate with X-cut or Y-cut is used so that the direction of the electric field between the electrode 14a and the electrode 14b and C-axis of the substrate 10 coincide with each other. The optical waveguide 12 is formed by dispersing methane. As material of the electrode 14, gold, platinum and copper can be used.
Patent JP-H03121346-A (JP)
Title: Oil passage in transmission
Inventor: OGAWA MASAHIRO
IPC: F16H57/03
Filed: 1989-09-30
Abstract: PURPOSE:To provide a transmission having an increased pumping efficiency and a miniature size while reducing noise by providing an oil feed passage for feeding oil into a valve body and an oil return passage for returning oil from the valve body to a part downstream of a filter. CONSTITUTION:There is formed an oil feed passage 76 for feeding oil discharged into a pump manifold 64 from an oil pump 42, into a valve body 62. Further, there is formed an oil return passage 78 for returning an excess of oil from the valve body 62 into an oil suction passage 74 downstream of an oil filter 66. With arrangement, filtered oil is effectively used so as to reduce the working for sucking up return oil, and accordingly, a suction resistance caused by passing the oil again through the filter 66 is decreased to reduce the suction working in order to reduce the pump drive torque. Further, bubbling caused by returning an excess of oil from the valve body 62 into an oil pan 70 so as to enhance the pumping efficiency. Further, it is possible to reduce the area of the filter 66 which may be therefore miniaturized.
Patent JP-H0592572-A (JP)
Title: Production of ink jet head
Inventor: YOKOTA MASAMI
IPC: B41J2/16
Filed: 1991-10-03
Abstract: PURPOSE:To produce an inexpensive ink jet head in high yield with high reliability by dissolving the solid layer provided on a substrate according to the pattern of liquid passages by a high concn. solution and washing the interior of the head with dissolving solutions successively lowered in concn. CONSTITUTION:In the production of an ink jet head, at first, liquid emitting energy generating elements are arranged to the upper surface of a substrate 1 functioning as a part of a passage constituting member and solid layers 4 are laminated to the predetermined regions of the upper surfaces of said elements. Next, an active energy ray curable material layer 7 is laminated to the substrate so as to cover the solid layers 3 and a second substrate 4 having an active energy beam blocking layer 8 preliminarily laminated to the surface thereof is laminated to said material layer 7. Continuously, the whole is irradiated with active energy beam and the material 7 is cured to form a cured resin layer and, at the same time, both substrates 1, 2 are mutually bonded. After the solid layers 3 are dissolved by a high conc. dissolving solution, the interior of the head is washed with dissolving solutions successively reduced in concn.
Patent JP-H08125256-A (JP)
Title: Dispersion compensating semiconductor light amplifier
Inventor: TOGO HITOMARO
IPC: H01L29/66
Filed: 1994-10-21
Abstract: PURPOSE: To obtain a dispersion compensating device having small-size and little optical loss by using a dispersion compensating semiconductor light amplifier with a quantum well structure such as a quantum fine wire or a quantum box. CONSTITUTION: A dispersion compensating semiconductor light amplifier has a constitution, wherein electrodes 11, a p-type semiconductor layer 12, optical confinement layers 13, quantum fine wires 14, a semiconductor barrier layer 15 and an n-type semiconductor layer 16 are laminated in order and both cleavage faces of the multilayer material are covered with a non-reflection film 17. By this constitution, a dispersion compensating device having a large dispersion compensating effect and little optical loss is obtained.
Patent JP-H05101433-A (JP)
Title: Semiconductor laser driving control circuit
Inventor: KAWASHIMA HISANORI
IPC: G11B7/125
Filed: 1991-10-03
Abstract: PURPOSE:To provide a control circuit for driving a semiconductor laser capable of emitting stably a laser beam corresponding always to each mode in a simple control circuit configuration in a device for recording, reading and erasing information by using the semiconductor laser. CONSTITUTION:Two current supply sources 8 and 9 for driving a semiconductor laser and a storage part 7 for control value are provided, and under the initial state of inputting a power source, etc., a feedback control is performed by using the above current supply sources, and also a control value is stored in a storage part 7. Afterward, one current supply source is controlled by using this control value, while the other current supply source is composed of a normal semiconductor memory and a semiconductor element, so as to stably driving the semiconductor laser 1 by the above two current supply sources 8 and 9 with the feed back control.
Patent JP-S63110951-A (JP)
Title: Stepping motor
Inventor: TORISAWA AKIRA
IPC: H02K37/14
Filed: 1986-10-28
Abstract: PURPOSE:To reduce the outer diameter while securing output torque or efficiency and miniaturize a device, by arranging excitation coils and a rotor in the axial direction. CONSTITUTION:Two stator sets are arranged in a frame unit so that a rotor 15 may be surrounded by them, and on each of the stator sets, an excitation coil 18 is fitted via a coil bobbin 17. The excitation coil 18 and the rotor 15 are arranged in the direction of a shaft 14. The coil bobbin 17 is formed integrally with a sleeve 23 made of non-magnetic material, and at both the shaft- directional ends of the sleeve 23, stator-fixing projections 24, 25 for fitting an upper stator 19 and a lower stator 20 on are formed.
Patent JP-H08119511-A (JP)
Title: Discharged paper stacker
Inventor: KAMATA KENJI
IPC: B65H29/58
Filed: 1994-10-21
Abstract: PURPOSE: To provide a function which can change the direction of discharged paper so as to take out recording paper where information have been recorded easily and can minimize paper curving. CONSTITUTION: This discharged paper stacker 1 consists of an outer guide 2 whose upper part 2b and an inner guide 3 whose upper part 3b are directed so that an angle to an outer guide lower part 2c (inner guide lower part 3c) may be roughly 90 degree respectively, with bent parts 2a, 3a prepared by forming its central part into a U shape upwards and constituted by fixing the inner guide 3 inside the outer guide 2, and is installed at a prescribed position near the discharged paper roller 4. The end of recording paper from a discharged paper roller 4 is guided along the inside surface of the outer guide 2 to change a paper discharging direction by roughly 90 degree to the paper discharging direction, thus feeding the recording paper to the carrying-out side of the stacker 1.
Patent JP-H0510043-A (JP)
Title: Spectator's seat of flat floor moving and containing type
Inventor: SUZUKI FUMIHIKO
IPC: E04H3/12
Filed: 1991-07-01
Abstract: PURPOSE:To contrive a floor surface on the front side of a stage, to be effectively used by enabling spectators' seats to be contained in a space under the stage of a structure. CONSTITUTION:On the side of a moving flat floor 2 for enabling flat floor moving and containing type spectators' seats A to be contained in a space 1a under a stage, a guide rail is set. On the side of a floor surface, guide rollers are arranged at fixed intervals, and the moving flat floor 2 can be moved to be linearly moved forward or backward by a specified distance, with the guide rail and the guide rollers. Accordingly, work for taking or containing the moving flat floor out of or into the space under the stage can be executed easily and certainly, and a floor surface on the front side of the stage can be effectively used.
Patent JP-H04137454-A (JP)
Title: Low voltage discharge lamp
Inventor: TAKAGI MASAMI
IPC: H01J5/50
Filed: 1990-09-28
Abstract: PURPOSE:To fix a base to the seal of a bulb securely by forming a clearance to let flow in a conductive adhesive between the base and the seal. CONSTITUTION:A metallic base 30 is capped on a seal 3, and the base 30 is connected to the seal 3 with a conductive adhesive filled between the seal 3 and the base 30. In this case, a clearance to let flow in the conductive adhesive between the base 30 and the seal 3 is formed. Since the base 30 is connected to the seal 3 with the conductive adhesive in such a way, the base 30 is never removed, and the adhesive is filled also in the clearance formed between the base 30 and the seal 3. Consequently, the adhered area of the base 30 and the seal 3 is increased, and they are adhered rigidly.
Patent JP-H04136461-A (JP)
Title: Block structure of engine
Inventor: TATEISHI TETSUYA
IPC: F02F1/16
Filed: 1990-09-28
Abstract: PURPOSE:To reduce the expansion strain of a liner part by instaling a rectification part in a cooling water passage surrounding the outer periphery of the liner part, making the cooling water stream on the outer periphery of the liner part nearly uniform over the whole periphery, and making the thermal conductivity of the outer periphery of the liner part nearly uniform over the whole periphery. CONSTITUTION:As for a cylinder block 10, a cooling water passage 14 is formed in wave form along the outer periphery of a liner part 12 formed as multicylinder. In this case, a thick rectification part 16 is formed in projection from the wall surface 14a, in the cooling water passage 14 corresponding to the front surface part where the thermal conductivity of each liner part 12, i.e., B part having a prescribed angle for the direction in which a cylinder is arranged. Cooling water is allowed to flow in branching into a main stream part 14b and a bag part 14c which are branched in the rectification part 16. Accordingly, the thermal conductivity of the A part is improved, and the thermal transmissivity of the B part is reduced, and the temperature difference between the A and B parts is reduced, and the expansion strain is reduced.
Patent JP-H03120437-A (JP)
Title: Method and device for measuring strain or temperature of optical waveguide
Inventor: HORIGUCHI TSUNEO
IPC: G01B11/16
Filed: 1989-10-03
Abstract: PURPOSE:To take a measurement with high accuracy even if there is variance in the constituent material by correcting variance in the parameter of the optical waveguide by utilizing the relation between variation of the constituent material of the optical waveguide and variation in the reflection coefficient of back Rayleigh scattered light. CONSTITUTION:A reference optical fiber (s) and a test optical fiber (t) are connected to each other and an OTDR measuring instrument 1 is connected to the side of the fiber (s). A step of the signal (light) intensity in a measured waveform at a connection point (X mark) shows even a difference in back Rayleigh scattered light intensity due to the difference in structural parameter between both fibers (s) and (t). The intensity ratio Rs/Rt of signal light beams returning from before and behind the connection point is measured by a device 1 to find the specific refractive index difference Dt of the fiber (t). The Brillouin frequency shift fb0(Dt) of the fiber (t) when strain is zero from the difference Dt is obtained. The strain (e) of the fiber (t) is found by specific arithmetic from the shift fb0(Dt) and the measured Brillouin frequency shift fb(D,e) of the fiber (t). Thus, the variation of the Brillouin frequency shift of the fiber (t) can be corrected and the measurement is taken with high accuracy.
Patent JP-H07115302-A (JP)
Title: Dielectric filter
Inventor: NISHIJIMA KOHACHI
IPC: H01P1/205
Filed: 1993-10-14
Abstract: PURPOSE:To facilitate the control of the stray capacity and the coupling capacity and to ensure the satisfactory characteristic of a dielectric filter by scraping off a part of an electrode that forms an inter-electrode capacity. CONSTITUTION:The capacitor substrates 5 are put on the coupling electrodes 3 on a coupling substrate 2. Then the coils 6 are placed among the electrodes 3 adjacent to each other, and the chip capacitors 7 are set between each electrode 3 and a ground electrode 4. One of both ends of a connector terminal 8 pressed into an inner conductor forming hole 9 of a dielectric coaxial resonator 1 has a tongue shape and is connected to the electrode formed on the surface of each substrate 5. The electrodes 3 formed on the substrate 2 and a lower electrode 10 formed on the other side of the substrate 2 form an inter-electrode capacity Cp which is connected in parallel to the capacitors 7. Then each electrode 3 is partly scraped off by a cutter, etc., so that the capacity Cp is reduced. Thus the stray capacity is controlled.
Patent JP-S63113848-A (JP)
Title: Magnetic recorder for rotary head
Inventor: FUKUSHIMA YOJIRO
IPC: G11B15/52
Filed: 1986-10-29
Abstract: PURPOSE:To detect tape running speed with high accuracy by providing fixed reproducing and recording heads by separating them by a prescribed distance, on the outside of a recording area by a rotary head, and detecting the tape running speed. CONSTITUTION:In an area outside of a recording area by rotary heads 3, 4 of a magnetic tape 1, a speed detecting square wave pulse is recorded by a fixed recording head 6, and also, by this pulse, a time detecting circuit 12 is started. Subsequently, a recording pulse is reproduced and applied by a fixed reproducing head being at a prescribed distance from the head 6, and the circuit 12 detects the running speed of the tape 1 from a distance between the heads 6, 7 and a reproducing signal time delay to a recording signal. By the constitution of the fixed head which does not use recording by the rotary head by which the level is varied frequently, the tape running speed can be detected stably with high accuracy.
Patent JP-2001083507-A (JP)
Title: Light transmission plate, sidelight type surface light source device and liquid crystal display device
Inventor: OKAWA SHINGO
IPC: G02B27/00
Filed: 1999-09-10
Abstract: PROBLEM TO BE SOLVED: To prevent a bright line caused by reflection of edges from occurring and to emit irradiating light with uniform light quantity by arranging plural emission-enhancing regions with a variety of extent to promote the emission of irradiating light mixed with themselves and making the density of the plural emission-enhancing regions variable. SOLUTION: The first emission-enhancing regions P1 are arranged in the vicinity of the incident plane where a bright line is observed. Furthermore, the second emission-enhancing regions P2 with a relatively lower function to promote the emission of irradiating light than the first emission-enhancing regions P1 are densely arranged among the first emission-enhancing regions P1. Furthermore, the ratio of area covered with, and the unit area of the light- emitting surface 2C occupied with, the second emission-enhancing regions P2 gradually get lower as it goes farther away from the vicinity of the incident plane. Thus, the part where a bright line is prevented from occurring is made less conspicuous. In this case, the first and the second emission-enhancing regions P1 and P2 are formed in dimensions difficult to be visible.
Patent JP-H04137015-A (JP)
Title: Automatic travelling carriage guiding device using itv
Inventor: NAKADA HIROSHI
IPC: G05D1/02
Filed: 1990-09-28
Abstract: PURPOSE:To eliminate the need for the modification on a traveling path, etc., by providing an azimuth calculator which computes and outputs the progressing direction of an automatic travelling carriage so as to travel along a linear part extracted by a Hough transformer. CONSTITUTION:An ITV 1 capable of photographing the ceiling part of a travel ing path is provided on the signal direction side terminal of the automatic travelling carriage, and a video signal 2 outputted from the ITV 1 is processed by an image processor 3, and a carriage azimuth 4 representing the progressing direction of the carriage travelling along the traveling path can be outputted. The carriage azimuth 4 is inputted to an processed by a traveling controller 5, and a steering angle 8 and traveling speed 6 are calculated. The steering angle 8 out of them is inputted to a steering controller 9, and the steering controller 9 operates a steering wheel 10 appropriately, while, the traveling speed 6 is inputted to a velocity controller 7, which drives a driving wheel 11. In such a manner, since existing facility extending in the direction of the traveling path arranged at the ceiling part as a guiding line for the guidance of the automatic travelling carriage, no construction on a floor is required.
Patent JP-2001082653-A (JP)
Title: Structure of pipe connecting part
Inventor: HITOMI SEIICHI
IPC: F16L21/08
Filed: 1999-09-10
Abstract: PROBLEM TO BE SOLVED: To prevent falling of a polyethylene pipe from a flange fitting even when large bending stress or axial stress is applied. SOLUTION: Spigot of a high density polyethylene pipe 6 on a head end of which an in-core 7 is inserted and fitted is internally inserted in a flange pipe joint 1 on which a rubber ring 2 an outer peripheral surface of which is roughly conically inclined and a small diametrical part head end of which is cross-sectionally roughly circularly bulged is inserted and fitted in a socket 11, a lock ring 4 having a slit in the axial direction and free to contract in diameter and a small diametrical part 51 of a retainer 5 having a stepped part on an outer periphery sandwich a large diametrical part 51 of the retainer between the rubber ring 2 and a press ring 3 as the press ring 3 inserted and fitted in this order in a recessively sunk part 31 a deep part of which is diagonally contacted in diameter is externally fitted in the high density polyethylene pipe 6,  and the flange pipe joint 1 and the press ring 3 are fastened by a T head bolt 8 and a nut 9.
Patent JP-H02106108-A (JP)
Title: Method and device for core damage detection
Inventor: ENOMOTO KAZUO
IPC: H02G1/12
Filed: 1988-10-13
Abstract: PURPOSE:To detect damage on a core caused by a lead-out cutter during cutting/lead-out process of wire by isolating the lead-out cutter and the wire cutter electrically. CONSTITUTION:Insulators 14, 14 are fixed in gaps formed at cassettes 12, 12 side between wire cutters 11, 11 and the cassettes 12, 12 as shown on the drawing, where the wire cutters 11, 11 are made movable vertically in the drawing with respect to the insulators 14, 14. Lead-out cutters 11, 11 are isolated electrically from the wire cutters 11, 11 through the insulators 14, 14. Since the magnitude of current flowing through the circuit differs considerably between the case where the lead-out cutters 2, 2 contact with a core 1a and the case where they do not contact with the core 1a, damage on the core 1a caused by the lead-out cutters 2, 2 can be detected reliably.
Patent JP-H04546-A (JP)
Title: Execution environment for transaction processing
Inventor: JIYON DABURIYUU HOWAITO
IPC: G06F9/44
Filed: 1990-09-28
Abstract: PURPOSE: To cooperatively process plural computers and relational computer resources by executing a transaction based on a transformed input data stream and making it into output data stream in cooperation with a data base system. CONSTITUTION: An IET 26 applies an input data stream 22 to an application program logic 32. By accessing the application program 32, the IET 26 receives routing information from a characteristic table 30 at terminal equipment through a communication route 28. A main storage logic 10 executes arithmetic and the processing of data. The application program logic 32 extracts information from a data base 18 and stores the information in them. The clean-up of the IET is performed by the set of format through a programmer concerning data generated from the application 32, and the information is sent as an output data stream 24.
Patent JP-S62120456-A (JP)
Title: Aluminum alloy core for radiator
Inventor: HAGIWARA RIKI
IPC: B23K35/22
Filed: 1985-11-19
Abstract: PURPOSE:To improve corrosion resistance at the external surface of a radiator core by subjecting a water tube material having an inner shell material of Al-In-Li alloy and a core material of corrosion-resisting Al alloy to vacuum brazing in combination with a fin material of Al alloy having a sacrificial anode effect. CONSTITUTION:An alloy containing, as principal components, 0.005-1% In, 0.0005-0.1% Li, 0.5-1.5% Mn, 0.1-0.7% Fe, and <=0.4% Si and having the balance Al is used as inner shell material. A welded triple water tube material is formed by use of the above inner shell material, the core material of corrosion-resisting Al alloy such as the one of Al-Mn, etc., and an outer shell material of Al-alloy brazing filler metal. This water tube material is combined with the fin material of Al alloy such as the one of Al-Zn, Al-Mn-Zn, Al-Sn, etc., having the sacrificial anode effect. The above is brazed in an atmosphere under 10<-2>Torr or below to be formed into a core for a radiator. If necessary, proper amounts of Cu and one or more elements selected from each of the following groups are incorporated to the composition of above-mentioned inner shell material: Zn, Sn, and Mg; Cr, Zr, Ti, and V; Zn, Sn, and Mg; Cr, Zr, Ti, and V.