baber/WOPTO huggingface dataset:
Patent JP-S632570-A (JP)
Title: Welding method for aluminum and aluminum alloy
Inventor: TANAKA KAZUO
IPC: B23K9/167
Filed: 1986-06-19
Abstract: PURPOSE:To prevent a heat-affected zone of base metal close to a bead from being cracked by superimposing a high-frequency current with a specific SP/RP on the titled extrusion material, etc., having recrystallized structure with the crystal grain diameter of a surface layer more than a specified amount to perform the TIG welding. CONSTITUTION:In case the surface layer has the recrystallization with the average grain diameter >=30mum, the SR/RP which is a ratio of a positive polarity component (SP) indicating an average electric current of an AC tungsten electrode minus half-wave to the reversed polarity (RP) indicating the average electric current of a tungsten electrode plus half-wave is made to 60/40-90/10. If the SP/RP is made to >=90/10, since the lack of fusion and the contamination of an oxide take place, the welding work becomes difficult. Furthermore, if the SP/RP is made to <=60/40, since the time till the melting is started is made more than the regular time and a thermal effect is exposed to the arc heat for many hours, a surface crack takes place. Accordingly, the surface crack of a toe part of weld can be prevented under the above condition.
Patent JP-S5267037-A (JP)
Title: Solar heat collector
Inventor: HAYAMA SATORU
IPC: F24S10/70
Filed: 1975-11-28
Abstract: PURPOSE: To prevent the destruction of a double-structure heat collector consisting of heat collecting pipe in closed outer pipe, by constructing it so that the difference of thermal expansion between the outer pipe and heat collecting pipe may be absorbed. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S59161041-A (JP)
Title: Manufacture of semiconductor device
Inventor: KAWASE KATSUYUKI
IPC: H01L21/60
Filed: 1983-08-08
Abstract: PURPOSE:To perform bonding operation using a safe jig easy to be replaced by a method wherein a heater block heating lead frame is provided with a bonding jig with a recession. CONSTITUTION:A heat conductive bonding jig 5 is provided with a central recession. The recession suffices to contain an island 2 of lead frame while a lead 4 supporting the bottom of island 2 and the island itself is provided just to come into contact with the bonding jig 5. The bonding jig 5 available in various shapes may be adapted to any shape of lead frame. The jig is vavorable for safety remarkably reducing the time of replacement since a heater 8 need not be replaced in case of using a lead frame with different shape.
Patent JP-H05343112-A (JP)
Title: Earth structure for electronic unit
Inventor: MIYAMOTO MANABU
IPC: H01R4/64
Filed: 1992-06-05
Abstract: PURPOSE:To simplify the constitution of a shelf and provide earth structure of an electronic unit where general purpose applicability can be enhanced in an electronic device adopting unit structure. CONSTITUTION:An electronic unit 1 is provided with a connector 3 and a pair of turnable levers 12. The whole of the lever 12 is covered with a metal coating film 14. and Is energized in a predetermined rotating direction by a spring 15. The lever 12 is brought into press-contact with a portion 11 of the shelf 6 by energizing force of the spring 15 with the connector 3 of the electronic unit 1 connected in engagement with a connector 8 of a back board 9. Consequently, an earth circuit of the electronic unit 1 is electrically conducted to the shelf 6 via the metal coating film 14.
Patent JP-H01314870-A (JP)
Title: 4-way valve for reversible freezing cycle
Inventor: OZAWA TAKEO
IPC: F25B41/04
Filed: 1988-06-14
Abstract: PURPOSE:To reduce a quantity of heat exchanged between a high temperature high pressure refrigerant and a low temperature and low pressure refrigerant mainly at the piping connection port part of a 4-way valve and to enable improvement of cooling and heating capacity, by a method wherein the material of the connection port of each of the outlet and the inlet of the 4-way valve is varied to a member having thermal conductivity lower than that of a copper. CONSTITUTION:In a 4-way valve, iron having low thermal conductivity is used for a valve body 1, a compressor delivery pipe connection port 2, a piping connection port 3 on the indoor heat exchanger side, a compressor suction piping connection port 4, and a piping connection port 5 on the outdoor heat exchanger side. A high temperature high pressure refrigerant flowing in, as show by an arrow mark A, through the connection port 2 and flowing out through an arrow mark A' to the connection port 5 (an arrow mark A'') first flows to the inner side 7 of the valve body 1 and heats the valve body 1 to transfer the heat to the connection ports 3 and 4. However, since the member of the connection ports 3 and 4 is varied from copper to iron, heat exchange transferred to a low temperature low pressure refrigerant through the connection ports 3 and 4 is decreased, and an amount of heat exchanged with the low temperature and low pressure refrigerant flowing in, as shown by an arrow mark B, through the connection port 3 and flowing out, as shown by an arrow mark B'', to the connection port 4 through an arrow mark B' is decreased to approximate 60% lower than that of a member made of copper.
Patent JP-H11333776-A (JP)
Title: Assembly hand
Inventor: DOUNO SHIGERU
IPC: B25J15/06
Filed: 1998-05-26
Abstract: PROBLEM TO BE SOLVED: To reduce the limit on the outer dimension of a small-sized work to be handled. SOLUTION: This assembly hand comprises a plurality of rotary shafts 13 arranged on the same circumference, a drive part to transmit the rotation to the rotary shafts 13, an arm 15 fixed to each rotary shift 13, and a chucking member 16 provided on a tip of each arm 15 and projected in the axial direction of the rotary shifts 13. The chucking member 16 can be moved not only to the inner circumferential side of the circumference where the rotary shafts 13 are arranged, but also to its outer circumferential side, and the limit of the outer dimension of a work to be held is small. Each chucking member may be driven only by rotating each rotary shaft.
Patent JP-H0815941-A (JP)
Title: Multicolor image forming device
Inventor: MURAISHI TAKAYA
IPC: H01T19/00
Filed: 1994-06-27
Abstract: PURPOSE:To obtain a high quality image by stable discharge while suppressing the generation of a product, such as ozone, which adversely affects an environment, to the lowest degree possible. CONSTITUTION:In a bicolor image forming device, first and second corona electrifiers 3A and 3B, respectively, for causing a constant discharge current to flow, are disposed in order round a photoreceptor 2. The discharge current of the second corona electrifier 3B is made smaller than the discharge current of the first corona electrifier 3A, and the electrifying area of the second corona electrifier 3B is within the electrifying area of the first corona electrifier 3A. Thus, even in the formation of a bicolor image, the photoreceptor 2 is electrified by the stable discharge by causing the discharge current, so controlled as to be constant to flow in the corona wires 3a, 3b and 3c of the first corona electrifier 3A and the second corona electrifier 3B.
Patent JP-H081765-A (JP)
Title: Method and apparatus for thermoforming crystalline resin sheet
Inventor: YOKOYAMA TOSHIYUKI
IPC: B29C51/30
Filed: 1994-06-27
Abstract: PURPOSE:To improve the draw rate by thermoforming a crystalline resin sheet of polyethylene terephthalate (PET), etc. CONSTITUTION:The upper end 53 of a female mold 50 protrudes above the retainer 56 of a lower mold 55. A clamping unit 65 is moved down together with an upper mold 60 to press a PET sheet 90 to the mold 50. When the retaining part 61 of the mold 60 retains the sheet 90 in cooperation with the retainer 56 of the mold 55, the sheet 90 is elongated by the protrusion of the mold 55. Then, the sheet 90 is further elongated by the down movement of a plug 62. Thereafter, the sheet 90 is further elongated by supplying pressurized air into the mold 60 and sucking it into the mold 50.
Patent JP-H1144215-A (JP)
Title: Piston for cylinder injection internal combustion engine
Inventor: MASUDA GOJI
IPC: F02B17/00
Filed: 1998-05-27
Abstract: PROBLEM TO BE SOLVED: To increase a suction valve lift amount at a top dead center through a valve recess and to prevent worsening of stratified lean combustion occasioned by the valve recess. SOLUTION: A protrusion part 21 of the top of a piston 4 comprises a slope 23 on the exhaust valve side and a slope 22 on the suction valve side in parallel to the slope of a pent roof type combustion chamber: a top horizontal surface 30 between the two slopes; and conical side faces 24 and 25 composed of a conical surface concentric to the outline circle of a piston 4. The outer periphery of the protrusion part 21 is provided with a piston reference horizontal surface 26. A cavity combustion chamber 12 is formed in the shape of a complete round and valve recesses 31 and 32 are recessed in a state to be superposed therewith.  The depths of the valve recesses 31 and 32 are not deeper than the reference horizontal surface and the swirl component of the outer peripheral part of a cylinder flows over the piston reference horizontal surface 26, whereby no swirl component flows into the cavity combustion chamber 12.
Patent JP-H10331045-A (JP)
Title: Electronically controlled sample warper with yarn-exchanging structure
Inventor: TANAKA YOSHIHIRO
IPC: D02H7/00
Filed: 1997-06-03
Abstract: PROBLEM TO BE SOLVED: To provide an electronically controlled sample warper with yarn-exchanging structure, capable of exchanging the yarn in a velocity about twice as rapid as the conventional velocity. SOLUTION: This electronically controlled sample warper has yarn-guiding members 6' freely and rotatably attached to the tip parts of one or plural yarn-guiding levers 6 installed in the side face of a warping drum A so as to freely rotate and winding a yarn 22 on the warping drum A, and yarn-selecting guides 127 installed at one terminal part of a base supporting the warping drum A so as to face to the yarn-guiding member 6', so as to be rotated and protruded to a yarn-exchanging position when the yarn is exchanged, and so as to be rotated and housed in a waiting position when the yarn is housed. Further, the electronically controlled sample warper is constituted so that the yarns 22' may be delivered between the yarn-guiding member 6' and the yarn-selecting guide 127, automatically changed according to the prescribed order of yarns 22, and wound on the warping drum A.  When the yarn 22 is delivered from the yarn-guiding member 6' to the yarn-selecting guide 127, the yarn is held by the yarn-selecting guide 127 by allowing the yarn 22 to be released from the yarn-guiding member 6' by moving the yarn-guiding member 6' in the direction for releasing the yarn 22.
Patent JP-S625693-A (JP)
Inventor: MAKINO OSAMU
IPC: H05K1/09
Filed: 1985-07-02
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H0439017-A (JP)
Title: Taking-out method for synthetic resin molded product
Inventor: ARITA HITOSHI
IPC: B25J15/02
Filed: 1990-06-05
Abstract: PURPOSE:To drop reliably a work taken out of a mold from a holding apparatus of a taking-out device, by a method wherein the holding apparatus fastening the work is opened or closed a plurality of times at a releasing position. CONSTITUTION:When a mold is broken, an air cylinder 4 is operated, a piston rod is extended, a holding apparatus 5 is entered between the molds, a pair of claws are closed and a runner of a work is fastened. Then the holding apparatus 5 moved in a process of a rise-turn-fall, is stopped on, for example, a receiving box, the claw 51 is opened and fastening is released. Since the runner of the work is in a softened state at the time directly after opening of the mold, hereupon, it happens sometimes that the work W may not fall by sticking to one side claw 51. At this time, when the claw is closed, sticking force between the work W and claw 51 is slackened by an oscillation at that time. Therefore, when the claw 51 is reopened and the fastening is released, the work W is dropped within a receiving box. In the case if the work W does not drop by one time opening or closing, dropping can be performed reliably by repeating the opening or closing further.
Patent JP-S5571571-A (JP)
Title: Ink injection head for ink jet recorder
Inventor: MARUYAMA MITSUAKI
IPC: B41J2/14
Filed: 1978-11-25
Abstract: PURPOSE:To speed up meniscus return and improve frequency response by reducing flow resistance of the passages leading to the nozzles in a multiple type ink injection head comprising a plurality of pressure of chambers, nozzles, and the like. CONSTITUTION:An ink injection head 4 comprises an ink storage chamber 5 and a series of grooves such as ink feed passages 6, pressure chambers 7, ink passages 8, and nozzles 9 formed by etching or the like. In the head 4, ink in the chambers 7 is injected from the nozzles 9 for recording, by the bending action of electromechanical converter elements 10 arranged in the chambers 7. The grooves of the passage 6 and 8 are formed to be deeper than those of the chambers 7 and nozzles 9, to reduce the flow resistance of the passages leading to the nozzles 9.
Patent JP-H07328141-A (JP)
Title: Automatic lift type water scattering apparatus for fire prevention
Inventor: AKIMOTO HIDEAKI
IPC: B05B15/68
Filed: 1994-06-06
Abstract: PURPOSE:To achieve a reduction in cost of apparatus containing a pit by shortening the overall length of a water scattering gun in a automatic lift type water scattering apparatus which is adapted to open a lid of the pit under the ground housing the water scattering gun utilizing upward movement of the water scattering gun by a supplying water pressure. CONSTITUTION:A water of a water supply pipe 1 pressurizes a lower part of a piston in a water scattering gun body 4 via a bypass pipe 5 and pushes up a lid 26 to turn via a first bearing 15 being extended to a water scattering head 8, a first support base 17, a thrust shaft 19, a second support base 20 and a second bearing. The lid 26 is supported with a hinge 27. As the lid opens to a specified angle alpha with the lifting thereof, a communication hole on the lower side of the piston in the water scttering gun body reaches the position of the water supply pipe 1 to start the supplying of water and the water is discharged at an angle alpha0. As the water scattering gun lowers with the end of discharging water, the thrust shaft 19 comes doing a process opposite to that as mentioned above and the lid is returned to the ground surface automatically. The thrust shaft 19 and the support base 20 are built separable and the lid is inverted easily to inspect the inside thereof.
Patent JP-2000335720-A (JP)
Title: Scum scraping-up device
Inventor: HIRAI ATSUO
IPC: B65G19/00
Filed: 1999-05-26
Abstract: PROBLEM TO BE SOLVED: To provide a scum scraping-up device allowing the use of a drive for a sludge scraping-up device for driving a scum scraping-up plate to ensure scraping-up and discharge of scum. SOLUTION: A scum scraping-up plate 34 which is mounted on an endless rope 33 for circulating movement in a vertical plane on a water surface of a waste water treatment tank is circulatingly driven in one direction by using a striker 51 mounted on a connection rod 5, at the lower end of which a sludge scraping-up device is supported for almost rectangular motion in a vertical plane with a drive 4, so that scum S floating on a water surface of the waste water treatment tank can be scraped up in one direction.
Patent JP-H11340776-A (JP)
Title: Piezoelectric component
Inventor: TANAKA YASUHIRO
IPC: H03H9/17
Filed: 1998-05-27
Abstract: PROBLEM TO BE SOLVED: To provide a piezoelectric component having hold terminals which can hold a piezoelectric resonator securely and stably so that the influence of damping is small. SOLUTION: The piezoelectric component 1 is constituted by sandwiching the piezoelectric resonator 15, which has vibration electrodes 12 and 13 on the upper and lower surface of a piezoelectric substrate 14 and is put in area vibration, between a couple of hold terminals 21 and 22 in a case 11. The hold terminals 21 and 22 consist of electrode parts 21a and 22a and external connection parts 21b and 22b respectively. Between the electrode parts 21a and 22a and vibration electrodes 12 and 13, more than three very small conductive nearly spherical bodies 32 are interposed. The spherical bodies 32 are formed by plating or coating the surfaces of metal such as Cu and Ag, carbon, or spherical glass, ceramic, resin, etc., to make into conductive materials. The diameters of the spherical bodies 32 are larger than the surface roughness (Rmax) of the vibration electrodes 12 and 13.
Patent JP-S6037810-A (JP)
Title: Ceramic filter
Inventor: KANAZAWA SEIICHIROU
IPC: H03H9/60
Filed: 1983-08-10
Abstract: PURPOSE:To decrease the number of components and to attain ease of manufacture by connecting mutually the vicinity of the center position of plural ceramic oscillators oscillated by the thickness-shear oscillating mode in the lengthwise direction by a coupler. CONSTITUTION:The ceramic oscillators 11, 13 oscillated in the energy confinement thickness-shear oscillating mode are connected mutually by a coupler 20 in the vicinity of the center position in the lengthwise direction. A signal of a frequency band having the center frequency set by the characteristic of the oscillator 11 among input signals given from an input terminal t1 is confined as an energy in the overlapped range of electrodes 12-1, 12-2 of the oscillator 11. The torsional oscillation excited by a connection part between the oscillator 11 and the coupler 20 based on the confined signal is delivered to the connection part of the oscillator 13 at the output side by the coupler 20. Thus, the signla of a band pass frequency of the ceramic filter is confined in the overlapped range of electrodes 14-1, 14-2 of the oscillator 13 and the confined signal is extracted.
Patent JP-S5934702-A (JP)
Title: Microwave semiconductor oscillator
Inventor: ISHIBASHI ICHIROU
IPC: H01P7/08
Filed: 1982-08-21
Abstract: PURPOSE:To control the variance of an oscillating frequency, by providing a slit 11 on the earth conductor surface of a microstrip transmission line at the side of a gate in the direction orthogonal to the microstrip transmission line and varying the width and length of said slit. CONSTITUTION:A slit 11 is formed at the side of an earth conductor 13 in the direction orthogonal to a microstrip transmission line at a gate electrode of a microwave semiconductor oscillator. The connection of electromagnetic field between the line 2 and the slit 11 is larger than a case where no slit is provided. The electromagnetic field distribution of the line 2 can be varied greatly by changing the size, i.e. the width and length of the slit 11. As a result, the effective dielectric constant is affected and the reduction factor of wavelength is varied. Thus the variance of each factor of the oscillator is controlled by changing the width and length of the slit 11 by making use of the fact that the conditions of oscillating frequency corresponding to 1/4 half wavelength are varied. Then the variance of the oscillating frequency can be controlled.
Patent JP-S631512-A (JP)
Title: Manufacture of foam-molded material
Inventor: TAKINO MASARU
IPC: B29K105/20
Filed: 1986-06-20
Abstract: PURPOSE:To avoid waster of foamed raw materials and to improve operation efficiency, by a method wherein a reinforcing boardlike insert member coming into contact with a wall surface of a cavity is arranged on a combination of a split mold, a tubular member whose one end is opened toward the inside of the cavity is attached to an inner wall side of an insert member facing to a cavity surface side and the foamed raw materials are injected into the cavity with high pressure. CONSTITUTION:The inside of the skin 2 made of synthetic resin is lined with a foamed layer 3 and the inside of the same is lined with an insert member 4 by serving as shape retention and reinforcemenet. A tubular member 7 whose one end is provided with an outflow opening 6 is attached to the inside of the inset member 4 whereon the foamed layer 3 exists in a form after the insert member 4 surface. An end part of an antiopening part side of the said tubular member 7 is clogged 8 and a foamed material pouring opening 9 is opened extending to the insert member 4 from the tubular member 7 at a position close to the said logging part. Foamed raw materials 3' are pressed in the tubular member 7 through the foamed material pouring opening 9 of the insert member 4 from a direction meeting at that time at right angles with the tubular member 7.
Patent JP-H0310967-A (JP)
Title: Controller for motor-driven type power steering device
Inventor: OSHITA SAIICHIRO
IPC: B62D5/04
Filed: 1989-06-08
Abstract: PURPOSE:To prevent worsening of responsiveness due to the sampling delay of a torsional torque signal, etc., by providing a second phase compensation unit for generating a signal proportional to the differentiated value of an input signal such as an assist direction current command value, in addition to a phase compensating unit for the torsional torque signal. CONSTITUTION:When an assist direction motor current command value (i) is generated from an output torque command function unit 2 according to a torsional torque signal to perform powre assist control, output from a first phase compensation unit 3 for generating a signal proportional to the differentiated value of the torsional torque signal is added to the torsional torque signal. A phase compensation motor current command value (ip) from a phase compensation command function unit 4 to which the output of the first phase compensation unit 3 is output is added to the abovementioned command value (i). A signal proportional to the differentiated value of an input signal indicated by the added signal is generated by a second phase compensation unit 81 of a second phase advance compensation means 8 and the signal is added 82 to the abovementioned input signal. A third phase compensation unit 56 for conducting primary delay simulated integration compensation is provided in a control circuit 5.
Patent JP-S632835-A (JP)
Title: Device for producing optical fiber
Inventor: YABUKI MINORU
IPC: G02B6/44
Filed: 1986-06-24
Abstract: PURPOSE:To improve the quality of the core wire of the title fiber, to prevent the damage, and to reduce the equipment cost by providing a vibration control roll on the upstream side of a resin coating means to prevent the vibration of the drawn fiber core wire. CONSTITUTION:An optical fiber base material 12 is heated by the heating furnace 16 of a wire drawing device 18, and the obtained optical fiber core wire 14 is passed through resin coating means 20, 20A, and 20B and cross-linking means 22, 22A, and 22B and coated with resin. The obtained optical fiber 14A is taken out by a takeout machine 24 and wound on the winding drum 26 of a winding means 28. The vibration control roll 36 for controlling the vibration of the optical fiber core wire 14 is provided on the upstream side of the resin coating means 20 in the optical fiber producing device 10. Consequently, the damage of the optical fiber core wire 14 by the coating die of the resin coating means 20 is prevented, the variance in the roundness of the optical fiber 14A and in the thickness of the coat is prevented, and the quality is improved. Moreover, the course of the optical fiber core wire 14 is changed by the roll 36, the height of the equipment is decreased, and the equipment coat can be reduced.