baber/WOPTO huggingface dataset:
Patent JP-H09108900-A (JP)
Title: Hydraulic circuit for hydraulic cylinder
Inventor: KAWAGUCHI KOJI
IPC: B30B15/18
Filed: 1995-10-19
Abstract: PROBLEM TO BE SOLVED: To prevent pulsation by lowering the back pressure of a return line and also to reduce swing of a drain hose at the time of punching at top dead center. SOLUTION: A circulating return circuit 29 is provided branching on the way of the return line 73 of the hydraulic circuit 27 for a hydraulic cylinder 17 for reciprocating a ram. A twoposition solenoid switching valve 99 is provided in this circulating return circuit 29. Circulating pipeline 101, 103 for circulating between the inlet-side and outlet-side ports of this two-position solenoid switching valve 99 are provided and also a return pipeline 105 which is communicated with a tank 39 is provided. Then, by returning dividing the large flow-rate of returned oil which is generated at the time of punching at the top dead center with the circulating return circuit 29, the back pressure of the returned oil is lowered, pulsation is prevented and swing of the drain hose 72 is reduced.
Patent JP-H01118644-A (JP)
Title: Weft yarn treatment method of fluid jet type loom
Inventor: ONISHI KIMIMASA
IPC: D03D47/34
Filed: 1987-10-27
Abstract: PURPOSE: To firmly thread a newly drawn out weft to a main nozzle after detecting the absence of a weft on a route from a winding arm to the main nozzle with a sensor, cutting the remaining weft on a storage drum in a plane crossing the drum surface and removing the cut off weft by suction. CONSTITUTION: When a fluid jet loom has a weft storage drum 2, a weft is firmly threaded as follows: (1) when detecting the absence of a weft due to weft breakage on a route from a winding arm 4 to a main nozzle 8 with a sensor 63, a cutter 34 cuts the remaining weft W on the drum 2 in a wound state in a plane crossing the drum surface and a blower 40 removes the cut off weft W by suction into a shed 38; (2) forming an air current for threading a weft by jetting compressed air from a nozzle 42 and the main nozzle 8 and threading a newly drawn out weft W from a yarn feeding package 1A to the main nozzle 8 in a state that a remaining weft on the drum 2 is completely removed.
Patent JP-H03135035-A (JP)
Title: Manufacture of electrode of semiconductor device
Inventor: IKETANI MASAHISA
IPC: H01L29/41
Filed: 1989-10-20
Abstract: PURPOSE:To form a hole in selt-alignment with an electrode and to avoid a disconnection of an element by a dislocation of a mask or the like by a method wherein, when the electrode of a GaAs FET is formed, a metal electrode of a via hole is formed at an early stage of a process, a substrate is etched by making use of the metal electrodoe as a mask and the hole is formed. CONSTITUTION:Island-shaped source electrodes 22 and an insulating film 23 are formed one after another on a GaAs wafer 21; the film 23 between the electrodes 22 is removed by a dry etching method using a photoresist pattern 24 as a mask. Then, an Al current film 25 to be used as an electrode wire by a selective electrolytic Au plating operation later is applied to the wafer 21; then, a photoresist pattern 26 is formed in the central part on the film 23 and between the electrodes 22. After that, an Al-plated layer 27 is applied to the film 25 by using the pattern 26 as a mask; the pattern 26 is removed wholly by using an organic solvent; in addition, the film 25 under the pattern 26 removed partly by using an acid-based liquid; an opening part 25a is formed; a via hole 28 is formed in a surface part of the wafer 21 by using a phosphoric acid-based liquid by making use of the film 25 as a mask.
Patent JP-H03134279-A (JP)
Title: Trochoid oil pump
Inventor: KOBAYASHI SHIGEMI
IPC: F04C2/10
Filed: 1989-10-20
Abstract: PURPOSE:To prevent generation of cavitation by providing the point end of a pressure reducing shallow groove from a delivery side to a suction port side on an intermeshing pitch line and the rear end of the groove in an outer position from the intermeshing pitch line and possible to communicate with a delivery port. CONSTITUTION:The point end of a pressure reducing shallow groove D from a delivery port 5 to a side of a suction port 4 is provided almost on an intermeshing pitch line l with the rear end of the groove D provided in an outer position from the line l and possible to communicate with the delivery port 5. When a trochoid oil pump is driven, oil, even placed in a position of maximum volume Vmax in a space part S between outer and inner rotors 2, 3, is pressed to a base part side of the pressure reducing shallow groove D by rotating the inner rotor 3, and a pressure of reverse flow pressure-reduced oil from the delivery port 5 is further decreased to perform action so that cavitation gradually disappears. Thus by suppressing generation of the cavitation to prevent erosion, the improvement of durability and the prevention of generation of noise can be contrived.
Patent JP-H07127209-A (JP)
Title: Installation device for beam receiver
Inventor: OCHI KOJIRO
IPC: E04H6/02
Filed: 1993-10-29
Abstract: PURPOSE:To improve freedom of an installation position of a beam receiver by arranging the beam receiver under a throating piece along a rafter and connecting it to the rafter by a mounting bracket free to slide along the throating piece. CONSTITUTION:Horizontal pieces 1, 1 directed outward are extensively provided on both lower end parts of a rafter 2, vertical pieces 5, 5 confronting the rafter 2 of the horizontal piece 1 are held up, and a throating piece 14 is constituted of the horizontal piece 1 and the vertical pieces 5. Thereafter, a beam receiving bracket 6 to receive a beam is arranged under the throating piece 14 and it is connected to the rafter 2 by mounting brackets 3, 3 free to slide along the throating piece 14. In the case of providing a plural number of the beam receiving brackets 6 under the throating piece 14, it is desirable to connect the receiving brackets 6 to each other by an intermediate sach bar 4.
Patent JP-H01117658-A (JP)
Title: Ac/dc converting circuit
Inventor: KUROKI KAZUO
IPC: H02M7/155
Filed: 1987-10-29
Abstract: PURPOSE:To improve conversion efficiency, by connecting an AC reactor to AC input side of a full-wave rectifying circuit while connecting a capacitor to DC output side and arranging a self-extinguishing semi-conductor switch in reverse parallel to half number of rectifying diodes. CONSTITUTION:An AC/DC converting circuit comprises rectifying diodes 10-16 constituting a full-wave rectifying circuit, and an AC filter 20 is connected through an AC current transformer 18 and an AC reactor 34 to AC input side of the rectifying circuit. A capacitor 28 and a load 34 are connected respectively in parallel to DC output side of the rectifying circuit. Transistors(Tr) 36, 38 are connected in reverse parallel to the rectifying diodes 10, 12. A control circuit 32 turns the transistors 36, 38 ON/OFF with high frequency such that the waveform of AC input voltage matches with the waveform of current detected through the AC current transformer 18. Furthermore, DC output voltage is maintained at a constant level by regulating the ratio between ON and OFF operation.
Patent JP-2001091169-A (JP)
Title: Plate type heat exchanger
Inventor: ABE TADAO
IPC: F28D9/02
Filed: 1999-09-27
Abstract: PROBLEM TO BE SOLVED: To provide a plate type heat exchanger which is easily processed and allows the equipment cost to be suppressed low for manufacturing. SOLUTION: Dish-like plates 3 having flat bottoms are stacked one above another, shield members 5 composed of separate members for holding spaces at approximately equal distances between the individual plates 3 and causing the turbulence are inserted between the plates 3 and they are bonded in one body to form two lines of fluid liquid passages between the alternating plates.
Patent JP-H11107498-A (JP)
Title: Unit flooring and manufacture of flooring main body used for unit flooring thereof
Inventor: TAKAHASHI MASAYORI
IPC: E04F15/02
Filed: 1997-10-03
Abstract: PROBLEM TO BE SOLVED: To obtain excellent workability by installing a flooring main body and a support member supporting the flooring main body from the lower side and having a plurality of legs and fixing the flooring main body and the support member by pressing in press-in fittings to the fitting section of the top face of the support member. SOLUTION: A flooring main body 2, in which a molding material containing an inorganic composition using at least SiO2 -Al2 O3 powder, an alkali metal silicate and water as main components is cured and formed in a tabular shape, is molded. The unit flooring 1 is formed of the flooring main body 2 and a support member 3 with a lattice frame-shaped base section and a plurality of engaging sections 33 and legs. In press-in fittings 4, discoidal retaining sections 41 are formed at one ends, and press-in sections 42 with umbrella-shaped projections 42a are formed at the other ends.  In the flooring main body 2 and the support member 3, the press-in sections 42 of the press-in fittings 4 projected from the underside of the flooring main body 2 are faced into the press-in holes of the support member 3, and the press-in sections 42 are pressed into up to the underside side of the base section and unified. Accordingly, manufacturing workability is improved, and the unit flooring can be manufactured at low cost.
Patent JP-S63126172-A (JP)
Title: Fuel cell
Inventor: TOMIKI HIROSHI
IPC: H01M8/04
Filed: 1986-11-17
Abstract: PURPOSE:To maintain excellent cell properties and enable a long life and a high performance by making a reaction gas supplied to plural fuel cell bodies to be uniform in each fuel cell body. CONSTITUTION:Output voltages 24a-24c of lamination upper cells and output voltages 25a-25c of lower cells of each fuel cell body 7a-7c laminated are measured and compared by a voltage measuring device 26. And the opening/ closing of fuel gas flow control valves 10a-10C or oxidant gas flow control valves 13a-13c is controlled by a reaction gas distribute flow controller 27 based on the value. And the reaction gas distribute flow controller 27 operates, opens the fuel gas flow control valve 10a, increases the supply quantity of the fuel gas F, increases the voltage of the laminated lower cell, and controls the voltage so as to the difference between the upper and the lower cell voltage is eliminated based on relative values when the cell voltage 25a of the lamination lower part is lower compared with the cell voltage 24a of the upper part. Thus reversing phenomena by a shortage of the reaction gas can be prevented.
Patent JP-H08109628-A (JP)
Title: Soil improvement device
Inventor: IKEDA TSUTOMU
IPC: E02D3/12
Filed: 1994-10-12
Abstract: PURPOSE: To greatly enhance the shear force in comparison with the technology by the prior art, improve the preventive effect of a common rotation phenomenon and a dumpling phenomenon of excavated soil greatly, execute better stirring and mixing even if hardener can not be easily mixed with soil such as viscous soil, to increase the speed of excavation and complete the soil improvement work in a short time. CONSTITUTION: In the soil improvement device capable of improving soil by boring a hole in the ground, a plurality of stages of stirring wing bodies consisting of middle wings 13 and external wings 15 projected at right angles to internal ad external shafts 12 and 14 vertically are continuously provided. The middle wings 13 and external wings 15 in stirring wing bodies continuously provided are different in their rotational directions with the forward and reverse rotation of the internal and external direction.  The uneven parallel middle wings 13 and external wings 15 adjacent to each other in the stirring wings bodies continuously providing a plurality of stages are connected, and one connection body A between the middle wing 13 and external wind 15 connected with each other and the other connection body B between the middle wind 13 ad external wing 15 are different in their rotational directions with the forward and reverse rotation of the internal and external shafts 12 and 14.
Patent JP-2000081594-A (JP)
Title: Projection type display device
Inventor: KAMIHIRA KAZUTAKE
IPC: G03B21/00
Filed: 1999-09-27
Abstract: PROBLEM TO BE SOLVED: To make it possible to project and display images of extremely high fineness in such a manner that the utilization efficiency of light is enhanced by providing the device with plural mirrors which are installed in correspondence to each of display elements, reflect the light subjected to intensity modulation by the display elements and make the light incident on a projection lens and do not intersect with the optical axis of the lens within the face exclusive of the periphery. SOLUTION: A triangular prism-like mirror 1 is arranged adjacently to the projection lens 3. The two flanks RP1, 2 on the lens side of the triangular prism constitute reflection faces and integrally form two mirrors. The vertex of the triangular prism is placed on the optical axis (m) of the lens 3. The incident ray along the optical axis of the lens 3 from a screen 6 side passes the lens 3, is bisected by the reflection near the vertex of the mirrors and these rays head toward liquid crystal display elements 21, 22. The liquid crystal display elements 21, 22 are so arranged that these rays pass the center of the display faces of the liquid crystal display elements. As a result, the projection and display of the center of the images displayed on the liquid crystal display elements 21, 22 onto the extension line of the optical axis on the screen 6 are made possible.
Patent JP-H05202992-A (JP)
Title: Monopin locker joint bushing chain
Inventor: FUIRITSUPU JIEI MOTSUTO
IPC: F16G13/06
Filed: 1992-10-09
Abstract: PURPOSE: To provide a rocker joint type chain with a reduced number of pins. CONSTITUTION: A rocker joint is constructed from the pins 60 and bushings 76 of the links. The pin members have a working front surface 80 and a convex back surface 82. The bushings have apertures 100 therein which include an arcuate working surface 104. The pins are disposed in the apertures of the bushings such that the pin member working surface engages and rocks on the curved surface defined by the aperture of the bushing. The rocker joint has application to roller chain and silent bushing chain.
Patent JP-H03134297-A (JP)
Title: Axial blower
Inventor: UCHIDA TOSHIHIKO
IPC: F04D29/04
Filed: 1989-10-19
Abstract: PURPOSE:To prevent oil leak from a bearing part by providing a magnetic fluid seal which is inserted in a bearing sleeve so that it may be opposed to the end of an oil-impregnated sintered bearing and which has a permanent magnet for holding magnetic fluid on a rotary shaft. CONSTITUTION:A magnetic fluid seal 17, whose outside diameter is approximately same as that of a bearing sleeve 4, is provided with two pole plates 18 with a little larger inner diameter than a rotary the diameter of shaft 6, and a permanent magnet 19 interposed between them, and a magnetic fluid 20 poured on each inner periphery side of the pole plates 18 is held on the rotary shaft 6 by the permanent magnet 19. Oil oozes out from an oil-impregnated sintered bearing 5 with the rotation of a rotor 10, however, oil which has oozed out to the rotor 10 side is returned to the bearing 5 side without leak to the outside of the bearing part because the end of the rotor 10 side is sealed by the magnetic fluid seal 17 and the magnetic fluid 20. Oil which has oozed out to the opposite side of the rotor 10 is also shut off by a name plate 15 and is returned to the bearing 5 side. It is thus possible to prevent oil leak and improve durability.
Patent JP-H1195611-A (JP)
Title: Method for controlling fixing heater and image forming device
Inventor: NISHIDA YOSHIAKI
IPC: G03G15/20
Filed: 1997-09-18
Abstract: PROBLEM TO BE SOLVED: To provide a method for controlling a fixing heater and an image forming device adopting the same, capable of reducing a drastic current change caused by the fixing heater, without depending on the phase control. SOLUTION: Right after the start of applying an AC power source voltage when the heater temp. falls to fellow a target temp., in order to reduce the heater current, by regarding 3 halfwave lengths as a period of the AC power source voltage applied to the fixing heater, the thinning number is decreased from a large number to a small one. When the device is provided with two heaters, the same method is successively applied to each of the heater (states a, b, c and d). Subsequently, application of voltage is performed with the thinning number 0.  At this time too, by regarding the successive 3 halfwave lengths as one period, power is applied to a first heater by thinning the waveform of one halfwave length or two halfwave lengths out of 3 halfwave lengths for one period, while the power having the waveform of only halfwave lengths which are used for thinning the first heater is applied to a second heater, which is a state (f) of applying a first energizing pattern. The state (f) and the state (e) of energizing only one of the heaters (or state of reversing the relation between both heaters in the state (f)) are alternately repeated, until the heater temp. reaches the desired temp.
Patent JP-2001088924-A (JP)
Title: Article conveying body
Inventor: ISHII TORU
IPC: B65G17/46
Filed: 1999-09-27
Abstract: PROBLEM TO BE SOLVED: To provide an article conveying body capable of holding an article in a centered condition and easily performing jaw. SOLUTION: A placing stage 12 forming the article conveying body 10 is descended by a weight of fruits and vegetables A themselves to accommodate the fruits and vegetables A in an accommodating part 16. Holding members 13, 14 are turned inside by ascending and descending the placing stage 12 to be projected above coming out grooves 11a, 11b and coming out holes 12a, and the fruits and vegetables A are held in the centered condition by the long holding members 13... or the short holding members 14.... The placing stage 12 is ascended at releasing of holding to let the holding members 13, 14 go into the coming out grooves 11a, 11b and the coming out holes 12a, followed by horizontally rotating the placing stage 12 at a specified angle, and the holding members 13, 14 are held in a condition being accommodated in a conveying stage 11.
Patent JP-H04148528-A (JP)
Title: Positioning apparatus of specimen
Inventor: KOBAYASHI ISAO
IPC: B23Q1/00
Filed: 1990-10-12
Abstract: PURPOSE:To shorten the time required to position a specimen stage by a method wherein the positioning operation in the x-direction of the specimen stage and the control operation of its posture are executed by using independent compensators. CONSTITUTION:The displacement in the x-direction of a specimen stage 2 which holds a wafer and which can be moved in the x-direction and the y-direction is measured by using a first length-measuring instrument and a second length-measuring instrument 301, 302. A deviation amount between the output of the first length-measuring instrument and the position target value in the x-direction is input to a first compensator 401. A difference between both length-measuring instruments is found by using a first adder 501; it is input to a second compensator 402; its output is input to a second adder and a third adder 502, 503 via a voltage holding circuit. The second adder inputs the difference in an output between the first compensator and the second compensator to a first driver and a second driver 801, 802; the third adder inputs the sum of both to the first and second drivers. Fine-movement actuators 901, 902 are driven by their output; a fine-movement stage 10 and a specimen stage mounted on it are driven to the x-direction. The posture of the specimen stage is changed by the difference between input values to both actuators. The long-distance movement of the specimen stage is executed by a coarse-movement stage 11 after the specimen stage has been detached from the fine-movement stage.
Patent JP-H10119516-A (JP)
Title: Traveling body with rug
Inventor: EOMO SAKAE
IPC: B60C11/11
Filed: 1996-10-15
Abstract: PROBLEM TO BE SOLVED: To make mud difficult to be sticked at works in an ill-drained paddy field and a soft field, etc., by coating the surface of a rug bottom part with a mud sticking prevention layer made of elastic body layers with low hardness and arranging a plurality of grooves on the surface of this mud sticking prevention layer, in a traveling body with rug which is provided with a plurality of rugs on a tread. SOLUTION: A bias tire 1 for vehicle for agricultural work is provided with a plurality of rugs 3 in the peripheral direction on a tread 2. The side surfaces of these rugs 3 and the surface of the tread 2 including a side wall part 4 and a shoulder area 5 are coated with a mud sticking prevention layer 6 made of elastic body layers with low hardness. On the external surface of this mud sticking prevention layer 6, a plurality of grooves M are arranged. These plurality of grooves M are formed to extend substantially linearly in the extending direction of rough rugs 3. By these grooves M, the influence on the surface layer of a rubber flow toward a rug apex for a rug formation generated in a cure process, that is, the rubber flow on the mud sticking prevention layer 6 is suppressed and thickness of a layer in a rug bottom part L is sufficiently secured.
Patent JP-S63126093-A (JP)
Inventor: NOGAKI KENJI
IPC: G07F19/00
Filed: 1986-11-15
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-S61149930-A (JP)
Title: Optical element
Inventor: NISHIMURA YUKIO
IPC: G02F1/01
Filed: 1984-12-24
Abstract: PURPOSE:To obtain a clear image having high degree of resolution by providing a pair of electrode and a liquid layer contg. a polymer capable of absorbing the liquid by the effect of an electric field and desorbing the liquid in non- electric field. CONSTITUTION:An optical element comprises a substrate 1, a liquid layer 2 contg. gel, a transparent protecting plate 3, a picture element electrode 7 and a counter electrode 8. The layer 2 comprises the liquid and liquid absorbing and desorbing polymer. When an electric field is applied to the polymer, the polymer swells absorbing the liquid. When the electric field is interrupted, the polymer contracts desorbing the liquid. When the switch 5-2 is turned OFF, the gel 4-2 contracts preserving its very small parti-size. So the light 9-2 is scattered or refracted by the gel 4-2, and the rectilinear propagating characteristic of light is inhibited. On one hand, when a switch 5-2 is turned ON, the gel 4-1 is swollen. As the result, the scattering and refracting characteristics for light are lost, so the light 9-1 can proparagate rectilinearly. Since the gel can be made to very fine particle size, a clear image having high degree of resolution is obtd.
Patent JP-H04147793-A (JP)
Title: Production of melting type low bulk specific gravity flux for welding
Inventor: NISHIO KANAME
IPC: B23K35/362
Filed: 1990-10-12
Abstract: PURPOSE:To facilitate the arbitrary and exact adjustment of the bulk sp. gr. of a flux by adding a specific ratio of MnO2 to compounded raw materials and subjecting the compounded raw materials to dissolving and water granulating, thereby adjusting the materials to the low bulk sp. gr. of a specific range. CONSTITUTION:The MnO2 is added at <=6wt.% to the compounded raw materials and the compounded raw materials are subjected to the dissolving and water granulating to adjust the bulk sp. gr. to the 0.7 to 1.4 range. The amt. of the MnO2 affects the foamability of the flux. The sp. gr. is low if the amt. is small. The control of the bulk sp. gr. to the prescribed value is difficult and the effect of adding the reducing agent is low if the amt. of the addition exceeds 6%. The surface of the flux is drastically increased and the moisture contained therein is increased if the bulk sp. gr. is below 0.7. Many blowholes and pits are then generated. The workability in high-speed welding is degraded and undercuts are more easily generated if the bulk sp. gr. exceeds 1.4.