baber/WOPTO huggingface dataset:
Patent JP-H1122778-A (JP)
Title: Fluid sealed type vibration damper
Inventor: HORI HIROAKI
IPC: F16F13/26
Filed: 1997-07-04
Abstract: PROBLEM TO BE SOLVED: To sufficiently ensure the freedom of tuning of an orifice passage even when the forming space of the orifice passage is limited, and advantageously provide a damping characteristic by arranging an elastic film on each orifice passage so as to partition the orifice passage. SOLUTION: The spring characteristics of rubber elastic films 96, 104 arranged on a first orifice passage 90 and a second orifice passage 92 are regulated, whereby the frequency band capable of advantageously exhibiting the damping effect based on the resonance effect of a fluid carried in the orifice passages can be regulated. Therefore, each orifice passage 90, 92 can be advantageously and easily tuned to a frequency band intending a damping within the limited setting range of passage sectional area or passage length. Thus, a damping effect extremely effective to a vibration to be damped can be advantageously provided without being accompanied by the enlargement of a mount size.
Patent JP-H0345174-A (JP)
Title: Ultrasonic oscillator and ultrasonic motor
Inventor: YAMAGUCHI MASAKI
IPC: H02N2/00
Filed: 1989-07-11
Abstract: PURPOSE:To operate with a large output and a high efficiency by arranging a lamination type piezo-electric element in the pressing mechanism of an ultrasonic oscillator to change a pressing force. CONSTITUTION:The ultrasonic oscillator 11 of an ultrasonic motor is equipped with a driving piezo-electric element 20 having a circular hole at the center thereof while electrodes 21, 22 are attached to both surfaces of the driving piezo-electric element 20. An elastic body 23 is attached to the other surface of the electrode 21 and a controlling piezo-electric element 24, consisting of a lamination type piezo-electric elements, is attached to the other surface of the electrode 22 while these parts are clamped to a base table 26 through a bolt 25. As a result, when a DC power source 31 is impressed on the controlling piezo-electric element 24, the pressing force of the elastic body 23 may be changed.
Patent JP-H0710376-A (JP)
Title: Winding control method
Inventor: NAKADE KIYOSHI
IPC: B65H54/28
Filed: 1993-06-25
Abstract: PURPOSE:To make yarn windable into a desired form by means of merely detecting a span of winding time by driving both traverse and spindle drive units on the basis of traverse value and spindle speed at each winding time calculated in conformity with information in regard to the winding. CONSTITUTION:When a winding start command is inputted into an arithmetic circuit 14 and a timer 15, this timer 15 gets measuring a span of winding time as the elapsed time since the winding has started, and simultaneously this arithmetic circuit 14 is also starting its control operation. In addition, those of winding form, winding density, yarn unit weight and target yarn velocity are set to this arithmetic circuit 14 as information on the winding in advance, and on the basis of this information on the winding, traverse value and spindle speed at each time to be measured by the timer 15 are calculated. Thus, on the basis of the calculated traverse value and spindle seed, a traverse drive unit 5 and a spindle drive unit 11 are driven in this way.
Patent JP-S5880806-A (JP)
Title: Small inductance element
Inventor: SAKAMOTO TETSUYA
IPC: H01F27/29
Filed: 1981-11-10
Abstract: PURPOSE:To eliminate unnecessary inductance and reduce adverse influences by the floating capacitance by a method wherein electrodes are provided on both end parts of a plastic ferrite having a hollow part, and the end parts of an electric wire wound up around a drum core provided in the hollow part are connected respectively to said electrodes. CONSTITUTION:Through-holes 13, 23 are provided in plastic ferrites 11, 22 so that inside ferrite cores may be inserted. Besides, electrodes 16, 26 constituted of metallic are provided on both end parts in the axial direction, and terminals 14, 24 are mounted on the electrodes 16, 26 so that the wire end parts wound up around the inside ferrite core may be connected.
Patent JP-S57103469-A (JP)
Title: Picture reader
Inventor: TSUKADA MASAHARU
IPC: G06T1/00
Filed: 1980-12-18
Abstract: PURPOSE:To obtain an accurate read signal of an original picture in a high speed, by using a parallel A/D converter in a photodetection sensitivity correcting circuit in the picture reader using a solid image sensor. CONSTITUTION:Before reading an original, switch terminals of an analogue switch 13 are switched to the 1-3 side by a sequence control circuit 22, and a standard original 1 is read by a solid image sensor 3, and the read signal is inputted to a parallel A/D converter 14 and is stored as a correction signal in a memory 18. Next, switch terminals of the analogue switch 13 are switched to the 1-2 side, and an original 2 is read, and the read signal is inputted to a resistance ladder 19. Then, turn-on and off of an analogue switch circuit 20 are set on a basis of the correction signal stored in the memory 18, and the correction signal is converted to an analogue signal and is added to the original read signal by an adder 21, thus correcting the photodetection sensitivity.
Patent JP-H1026642-A (JP)
Title: Spectrum analyzer
Inventor: ARATA HIROO
IPC: G01R23/16
Filed: 1996-07-10
Abstract: PROBLEM TO BE SOLVED: To enhance the frequency resolution of a spectrum analyzer in which a window function and a Fourier transform are used. SOLUTION: Zero-signal adders 1, 5 which extend a length in the direction of a time base when signals whose amplitude is zero are added to parts before and after a signal, π/2 phase shifters 3, 7 which cut a DC component, π/4 phase shifters 11, 12 which pass the DC component, multipliers 8, 13, Fourier transformers 9, 14, absolute-value circuits 10, 15 and a vibrator 16 are used. Thereby, the omission of a spectrum which is generated in an obsorvation method using a window function 4 is reduced, and the measuring resolution of the spectrum is enhanced.
Patent JP-S5882048-A (JP)
Title: Combustion-air supplying apparatus for stirling engine
Inventor: HARAMURA SHIGENORI
IPC: F02G1/043
Filed: 1981-11-12
Abstract: PURPOSE:To reduce the size of a Stirling engine and to reduce the noises produced by the same, by providing a guide piston coaxially with a work piston in the manner that these two pistons face toward each other, and feeding air into a combustion chamber from suction and discharge valves of a piston cylinder. CONSTITUTION:With upward movement of a work piston 9 and a guide piston 15 connected to the work piston 9, air in a chamber 19 is compressed and supplied to a combustion-air inlet port 5 from a discharge valve 26. At the same time, air is drawn into other chamber 20 from an air cleaner 27 via a suction valve 25 since pressure in the chamber 20 becomes negative. On the other hand, when the piston 15 is moved from the top dead point to the bottom dead point, air in the chamber 20 is compressed and supplied to the inlet port 5 via the discharge valve 26. At the same time, air is drawn into the chamber 19 from the air cleaner 27 via the suction valve 25. By thus compressing and expanding air in the work chambers 19, 19' and 20, 20' disposed respectively on the opposite sides of the guide pistons 15, 15' through reciprocal movement of the work pistons 9, 9', it is enabled to supply combustion air from the driving section.
Patent JP-H0936467-A (JP)
Title: Solid state laser resonance element and solid state laser resonator
Inventor: TOSAKA FUKUTAKA
IPC: H01S3/042
Filed: 1995-07-17
Abstract: PROBLEM TO BE SOLVED: To obtain a miniature solid state laser resonance element having simple structure and insusceptible to ambient temperature and illumination conditions at low cost. SOLUTION: The solid state laser resonance element comprises a saturable absorber 30 of YAG crystal, a dielectric coating 33 applied to one side of YAG crystal 30 in order to reflect the light having wavelength of 1064nm totally, and an antireflection coating 32 applied to the other side of YAG crystal 30 in order to prevent reflection of light having wavelength of 1064nm.
Patent JP-S5970481-A (JP)
Title: Spot welding method
Inventor: SUZUKI TAKATOSHI
IPC: B23K11/11
Filed: 1982-10-14
Abstract: PURPOSE:To weld securely the superposed parts of a thin copper alloy sheet and an auxiliary sheet of an alloy having the electric conductivity lower than that of said sheet by superposing the latter sheet on the surface of the former sheet, and conducting electricity thereto under pressure while the rear of said thin sheet is held superposed on a thick iron alloy plate. CONSTITUTION:An auxiliary sheet 4 of an alloy having the electric conductivity smaller than that of a thin material 3 to be welded consisting of either one of phosphor bronze and beryllium copper and having a suitable thickness is superposed on the surface of said thin sheet. On the other hand, the rear of the sheet 3 is superposed on the surface to be welded of a thick iron alloy plate 2 and these sheets and plates are disposed in a superposed state between electrodes 1 and 1' for spot welding. An input is made into a welding machine to conduct electricity to the electrodes 1, 1' under the pressure exerted thereon so that three sheets of the alloy plates including the above-described plate 2, the sheet 3 and the sheet 4 are welded to one another at the contact surfaces thereof. The secure spot welding of the thin copper alloy sheet having large air permeability to the thick iron alloy plate with high quality is thus made possible.
Patent JP-H09153598-A (JP)
Title: Dielectric thin film element and fabrication thereof
Inventor: MATSU YOSHIYUKI
IPC: H01L21/8242
Filed: 1996-07-10
Abstract: PROBLEM TO BE SOLVED: To realize high reliability by forming a dielectric thin film using a perovskite-type sintered oxide as a target and a sputter gas containing neon thereby reducing the leak current. SOLUTION: A silicon thermal oxide film 2 is formed, as an insulating layer, on the surface of an n-type silicon substrate 1. A Ta adhesive layer 3 and a Pt lower electrode layer 4 are then formed sequentially by sputtering on the silicon thermal oxide film 2. Subsequently, a strontium titanate (SrTiO3 ) dielectric thin film is deposited, as a dielectric thin film 5 on the Pt lower electrode layer 4. More specifically, the SrTiO3 dielectric thin film is deposited by RF sputtering using a sintered oxide of SrTiO3 as a sputter target in an atmosphere of sputter gas ratio of Ne/O2 =5/5 in deposition chamber. After depositing the SrTiO3 dielectric thin film, an oxygen atmosphere is brought into the deposition chamber and cooled down to the room temperature. Finally, a Pt upper electrode layer 6 is formed on the dielectric thin film.
Patent JP-S6161359-A (JP)
Title: Electron microscope
Inventor: TOMITA MASAHIRO
IPC: H01J37/26
Filed: 1984-08-31
Abstract: PURPOSE:To obtain dark stem picture and bright stem picture by a simple operation by mounting a deflecting coil directly under an upper detector and by demounting them when a transmitted image is observed. CONSTITUTION:A connecting plate 12 is assembled at a tip of a body 6 and a deflecting coil 13 is mounted in its bottom so as to locate in the center of an electron beam axis. Coil current of the deflecting coil 13 is adjusted so that a main spot is introduced into a detector. When a detector 1 is shifted from the electron beam 15 and the center of a hole of the connecting plate moves to the beam axis 15, the coil 13 is automatically shifted from the beam axis 15. Thereby, a dark stem picture and a bright stem picture are obtained by simple operation.
Patent JP-H0368868-A (JP)
Title: Oxidative denaturation of analyzed protein
Inventor: JIEIMUZU ERUTEINGU
IPC: C07K16/00
Filed: 1990-07-10
Abstract: PURPOSE: To give an antigenicity to protein or enhance the antigenicity by using an oxidizing agent such as a periodate, for example, having a sufficient performance for splitting the disulfide bond of protein when a protein is subjected to be bound with an antibody reagent in an immunity testing method. CONSTITUTION: A protein is treated with an oxidizing agent having a sufficient performance for splitting the disulfide bond in the protein, and the generated composite matter is allowed to react with the oxidizing agent with produced complex remaining after the preset reaction time, and it is brought into contact with a sufficient amount of reducing agent for inactivation. At this time, the oxidizing agent is allowed to have an oxidizing performance of at least about 1.3V, and a periodate, peroxodisulfate, a hypochlorite, etc., are used as an oxidizing agent. In addition, a thiosulfate, a dithionate, a dithiothreitol, etc., are used as a reducing agent, and the oxidizing stage is executed at about 20 to 70 deg.C. Further, after the protein is denaturated through reaction with the oxidizing agent, it may be brought into contact with a reducing agent.
Patent JP-H0229709-A (JP)
Title: Lens moving device for camera or the like
Inventor: HIROHATA MICHIRO
IPC: G02B7/08
Filed: 1988-07-20
Abstract: PURPOSE:To reduce effects by the error of the electric detection of a switch by providing a rotating member for transmitting rotation to a focusing mechanism and a click stop for temporarily locking the rotating member at a 1st position. CONSTITUTION:The click stop 22 provided with a ball 14 which falls into two notched grooves 6b and 6c formed on the outer peripheral surface of the rotating member 6 is attached to a structural member and the ball 14 is energized to fall into the notched groove by a spring 15. Electric pulses generated by making the leading edge of a switch piece 8a slide on a signal pattern part 20a are inputted in a lens movement detection circuit 8d, so that the moving quantity of a lens at the time of focusing can be electrically detected. In such a case, when the focusing lens reaches a fixed point, the ball 14 of the click stop 22 falls into the notched groove 6b of the rotating member 6 and the rotating member 6 is ceased by the click stop 22. Therefore, the position of the lens can be accurately controlled even if the small error is caused in the output from an electric lens detection means.
Patent JP-H0472014-A (JP)
Title: Method for continuously casting spheroidal graphite cast iron bar
Inventor: HATTA MASAMI
IPC: C21D8/06
Filed: 1990-07-09
Abstract: PURPOSE:To continuously cast a spheroidal graphite cast iron bar having high strength and high toughness by executing holding, rapid cooling and slow cooling, etc., in order at the specific temp. for the specific time after drawing out and rapid cooling the spheroidal graphite cast iron bar. CONSTITUTION:The spheroidal graphite cast iron bar formed by cooling the molten metal having spheroidal graphite cast iron composition housed in a holding furnace is drawn out at the fixed velocity and rapidly cooled and after soaking by holding this in the temp. range of 830-900 deg.C for 0.5-1.5hr, or this is rapidly cooled at cooling rate which does not develop pearitic structure, and the above rapid cooling is once stopped at the temp. of Ms point or higher and successively, this is slowly cooled in the temp. range of 200-400 deg.C for the prescribed time or this is held at the fixed temp. in the temp. range of 200-400 deg.C for >=0.5hr and after that, this is cooled at room temp., and the surface and the neighborhood are made to mixed structure of fine pearite and retained austenite and the part near core is made to the pearitic structure.
Patent JP-H0712136-A (JP)
Title: Cylindrical bush assembly
Inventor: HAYASHI YOICHIRO
IPC: F16C35/02
Filed: 1993-06-25
Abstract: PURPOSE:To provide a cylindrical bush assembly able to support a shaft slidably and desirably by a cylindrical bush over a long period of time without the generation of such a state that the cylindrical bush slips out of a supporting member even if stress relaxation is generated to the fittingly fixed part to the supporting member. CONSTITUTION:In a cylindrical bush assembly 1, the outer peripheral surface 5 of a cylindrial bush 4 made of synthetic resion so as to support a shaft 3 slidably on the inner peripheral surface 2 is fittingly fixed into the through hole 7 of a supporting member 6 with an interference, and on one end face 9 side of the cylindrical bush 4 protruding from one side face 8 of the supporting member 6, an endless groove 10 extended in the circumferential direction of the cylindrical bush 4 is formed on the outer peripheral surface 5 of the cylindrical bush 4. The cylindrical bush 4 is then press-fitted into the through hole 7 of the supporting member 6 so that the distance from the end face 9 of the cylindrical bush 4 to the side face 8 of the supporting member 6 is longer than the distance from the end face 9 of the cylindrical bush 4 to the opening end 11 of the endless groove 10 positioned on the end face 9 side.
Patent JP-S6424158-A (JP)
Title: Intake heater control device
Inventor: SHIBUYA MASATOSHI
IPC: F02N19/04
Filed: 1987-07-20
Abstract: PURPOSE:To enable the accurate time of temperature rise to be determined despite the presence of an earth resistor by supplying a constant current only to a heater resistor while battery voltage to the heater resistor and a current limiting resistor so as to calculate the present heater temperature and heater resistance value. CONSTITUTION:A heater resistor RH preheating intake, current limiting resistor RD connected to and separated from the heater resistor RH by a three-position switch S and a controller 1 grounded to a car body providing a built-in constant- current regulated power source 2 are respectively provided. While supplying a constant current from the constant-current regulated power source 2 only to the heater resistor RH with the three-position switch S controlled by the controller 1, voltage from a battery Ba is supplied respectively to the heater resistor RH and the current limiting resistor RD. While the controller 1 respectively calculates the present heater temperature and the value of an earth resistor RG connected to the heater resistor RH. By the control thus obtained, the heater resistor RH is heated by obtaining the time of rapid temperature rise for reaching the target temperature.
Patent JP-H1027797-A (JP)
Title: Aluminum/titanium laminated wiring and formation method thereof
Inventor: NARITA TADASHI
IPC: H01L23/52
Filed: 1996-07-10
Abstract: PROBLEM TO BE SOLVED: To prevent Ti and Al from reacting on with each other and pinhole from being formed in an Al-Ti laminated wiring, by a method wherein an Al layer is made to contain Si high enough in concentration near at its interface with a Ti layer so as to restrain the reaction of Al to Ti at an interface be tween them. SOLUTION: An Al/Ti laminated is constituted with a base layer 11, a Ti layer 13, an Al layer 15, a part of Al layer 15a close to the Ti layer 13, and an upper part 15. The lower part 15a of the Al layer 15 close to the Ti layer 13 contains Si high enough in concentration so as to restrain Al and Ti from reacting on each other at an interface between the layers 15 and 13. The upper part 15b of the Al layer 15 is set so low in Si concentration even at its maximum as not to generate pinholes in it. By this setup, an Al/Ti laminated wiring layer where Ti and Al are restrained from reacting on each other and pinholes are prevented from being formed can be realized.
Patent JP-H1026182-A (JP)
Title: Coil spring assembly and damper mechanism
Inventor: TAKEHIRA YASUSHI
IPC: F16F15/12
Filed: 1996-07-10
Abstract: PROBLEM TO BE SOLVED: To prevent unfavorable conditions from occurring in the process of assembly of a coil spring and a seat member. SOLUTION: A coil spring assembly 20 comprises a coil spring 25, seat members 26, and soft annular members 30. Each seat member 26 has a receiving portion 27 for contacting each end of the coil spring 25, and a projecting portion 28 extending from the receiving portion 27 into the coil spring 25. The soft annular member 30 is disposed between the projecting portion 28 and the seat winding portion of the coil spring 25 and compressed to temporarily stop the coil spring 25 and the seat member 26.
Patent JP-S5883670-A (JP)
Title: Novel preparation of prostaglandin e1 and its kind
Inventor: NOYORI RIYOUJI
IPC: C07C401/00
Filed: 1981-11-13
Abstract: PURPOSE:To obtain the titled compound useful as an inhibitor of blood platelet aggregation, hypotensor by a short process in high yield, by reducing selectively a DELTA<7>-prostaglandin E, and, if necessary, deprotecting and/or hydrolyzing the reaction product. CONSTITUTION:A DELTA<7>-prostaglandin E shown by the formulaI(R<1> is H, 1-10C alkyl, or tri(1-6C)hydrocarbon-silyl; R<2> is 1-10C alkyl, 5-6-membered cycloalkyl; R<5> is H or methyl; R<3> and R<4> are OH-protecting group; A is a group of CH2CH2, a group of CH=CH, a group of C C) is subjected to catalytic reduction using a zinc reducing agent (zinc powder, zinc-silver, or zinc-copper), or Raney-nickel in an atmosphere of hydrogen. If necessary, the reaction product is deprotected and/or hydrolyzed, to give the desired compound shown by the formula II (R<31> and R<41> are H or OH-protecting group). The starting substance shown by the formulaIis obtained by reacting a compound shown by the formula III with a reactive derivative of an organic sulfonic acid in the presence of a basic compound.
Patent JP-2000014187-A (JP)
Title: Direct-current brushless motor drive and room air conditioner using it
Inventor: TAKAKURA YUHACHI
IPC: H02P6/08
Filed: 1998-06-26
Abstract: PROBLEM TO BE SOLVED: To enhance the accuracy of detection of the timing of switching between energized sections without use of a filter and thus the driving efficiency of a direct-current brushless motor. SOLUTION: Motor terminal voltages Vu, Vv, Vw in phases U, V, W are detected from a direct-current brushless motor 12 which is driven by an inverter 11 supplied from a drive unit 1 with driving signals U+, U-, V+, V-, W+, W-, and compared with a reference voltage of Yd/2 obtained by detection resistance at comparators 8a, 8b, 8c in a rotor magnetic pole position detecting circuit 2. Thereby magnetic pole position detection signals U, V, W in respective phases are obtained and supplied to the drive unit 1. In the drive unit 1, the levels of the magnetic pole position detection signals U, V, W are detected with timing of chopping driving signals, and the positions of the magnetic poles of the rotor 3 are detected from variation in the level. Then the point at which energized sections are next switched is determined from the point of the detection.
Patent JP-S6425426-A (JP)
Title: Manufacture of semiconductor device
Inventor: OKADA NORIAKI
IPC: H01L27/11
Filed: 1987-07-22
Abstract: PURPOSE:To reduce a standby current increased due to a heat treatment at the time of assembling by irradiating a semiconductor chip having a high resistance element after assembling with an ultraviolet ray. CONSTITUTION:After an element 10 having a plasma nitride film 16 is bonded to a chip at 450-480 deg.C, hydrogen diffused from the film 16 into a high resistance polycrystalline silicon 14 is separated by irradiating it with an ultraviolet ray, a high resistance polycrystalline silicon 14 is enhanced in its, resistance, thereby reducing a standby current. Then, a frame is wired to a chip, and a whole lead frame is sealed with molding resin.