baber/WOPTO huggingface dataset:
Patent JP-H06147946-A (JP)
Title: Ultrasonic wave flow meter
Inventor: OTA TORU
IPC: G01F1/66
Filed: 1992-11-12
Abstract: PURPOSE:To increase propagation coefficient of sound wave in a wedge material by relaxing stress between a vibrator and the wedge material. CONSTITUTION:Relating to an ultrasonic wave flow meter wherein the flow speed or rate of an object is measured based on the difference of sound wave propagation coefficient between that of from the ultrasonic wave vibrator on the upstream side to that on the downstream side, and that of opposite direction, by mixing a filter with a wedge material 3 for driving-in the sound wave from the ultrasonic vibrator 6 at a specified driving angle to the flow of fluid, linear expansion coefficient of the wedge material 3 is decreased. By decreasing the density and hardness, so, thermal stress is relaxed for use in a wider range of temperature.
Patent JP-H07156375-A (JP)
Title: On-demand type ink jet recording head
Inventor: HIROTA TETSUO
IPC: B41J2/01
Filed: 1993-12-01
Abstract: PURPOSE:To reduce in size, noise and cost by disposing a laminated electrostrictive element driver at a shortest distance. CONSTITUTION:Print information data from a controller 1 is converted to serial data, which is transmitted to a head board 3 through a flexible cable 2. A serial-to-parallel converter 4a on the board 3 converts received data into parallel data (64 channels), and a signal from a driver 4b is input to an electrostrictive element 6 through an internal pattern 5. Electronic components such as an integrated circuit, etc., are adhesively fixed to the board 3 in the same plane as an adhering surface of the element 6.
Patent JP-S63152209-A (JP)
Title: Series resonator for ladder type electric filter
Inventor: ACHINAMI AKIRA
IPC: H03H9/58
Filed: 1986-12-17
Abstract: PURPOSE:To improve the yield in the manufacturing process by forming a dummy electrode to one face of a dielectric element plate with a partial electrode formed thereupon and selecting the front and rear sides so as to have nearly the same physical condition. CONSTITUTION:The partial electrode 4 is formed to one face of the dielectric component plate 2 and the full face electrode 3 is formed to the other side. A dummy electrode 6 is formed to one side of the dielectric element plate 2 with the partial electrode 4 formed thereupon and the front/rear sides have nearly the same physical condition. Thus, in baking and forming the partial electrode 4 and the dummy electrode 6 to the single dielectric plate 2, the bent of the plate 2 is eliminated. Moreover, in forming the dummy electrode, it is confirmed that the vibration is suppressed and the frequency constant is decreased. Thus, in causing a specific resonance frequency Fr, the length of the side is decreased to form the dummy electrode resulting in decreasing the serial resonator in size.
Patent JP-H01142450-A (JP)
Title: Sf6 decomposition gas sensor for high voltage ac load switch
Inventor: KADOTANI KENZO
IPC: G01N27/12
Filed: 1987-11-30
Abstract: PURPOSE:To diagnose the operative inferiority of the switching operation of a contact or the losing effect of an adsorbent, by arranging a sensor, which is provided with a resistance measuring electrode for measuring the surface resistance of the small piece cut from a glass cloth laminated sheet in the direction of the blocking layer thereof, in the container of a switch. CONSTITUTION:A sensor 1 is constituted by providing silver paste electrodes to the surfaces of a disc-shape small pieces composed of a glass cloth laminated sheet gradually lowered in its surface resistance by the long-time exposure to SF6 decomposition gas and drawing out lead wires 4 from said electrodes. This sensor 1 is arranged in the container of a high voltage AC load switch (not shown) having SF6 gas sealed therein and the secular change of the insulating resistance between the electrodes 3 is measured from the outside. Since the glass cloth laminated sheet is lowered in its surface resistance upon the exposure to the SF6 decomposition gas, the inferiority of the switching operation of a contact and the losing effect of an adsorbent can be diagnosed by detecting the amount of the SF6 decomposition gas.
Patent JP-H03163862-A (JP)
Title: Semiconductor device
Inventor: FUKAZAWA TORU
IPC: H01L25/11
Filed: 1989-11-22
Abstract: PURPOSE:To contrive the improvement of a heat dissipation property and a heat resistance between a case and metal substrates by a method wherein the metal substrates are installed on the protrusions of the step parts of the case and are fitted and fixed in the case in such a way that the side and base surfaces of the substrates are exposed from the base of the case. CONSTITUTION:Previously manufactured can type semiconductor elements 3 are fixed and connected on and to a pair of metal substrates 1 two pieces by two pieces through a brazing metal 2 owning a prescribed rectifier direction and upper side electrodes on glass seal parts of the elements 3 are electrically connected to each other by metal plates 7 to form a single-phase full-wave rectifier bridge circuit. Then, after the substrates 1 are fixed on prescribed step parts of a previously formed frame type case 4a, a previously molded base plate 4b is fitted in the base part of the case 4a and is bonded to the case 4a with an insulative resin 8. In such a way, the substrates 1 with the can type semiconductor elements 3 soldered thereon are fitted and fixed in the insulative case 4a to eliminate an insulating resin between the substrates 1 and the base part 4b of the case. Thereby, the improvement of a heat dissipation property and a heat resistance between the substrates 1 and the case is contrived.
Patent JP-2001127038-A (JP)
Title: Manufacturing method of semiconductor device
Inventor: SATO MASAYUKI
IPC: H01L21/768
Filed: 1999-10-25
Abstract: PROBLEM TO BE SOLVED: To provide a new manufacturing method of a semiconductor device which materializes the suppression of microloading effect and etching at high selectivity ratio while curtailing the quantity of discharged PFC gas, and besides is high in productivity, in the fine processing by dry etching of a silicon nitride film (Si3N4). SOLUTION: This is the manufacturing method of a semiconductor device which forms a gate electrode through a gate oxide film 2 on a semiconductor substrate 1, grows a silicon oxide film 6 on the semiconductor device consisting of source and drain diffusion layers 1a and 2b provided to catch this gate electrode, further grows a silicon nitride film 7 on this silicon oxide film 6, and forms a sidewall at the gate electrode. This includes at least a first process of etching the silicon nitride film 7 using the etching gas 8 including a halogen gas or a hydrohalide gas until the silicon oxide film 6 is exposed, and a second process of etching the gate oxide film 2 and the silicon oxide film 6 using the mixed gas 9 between fluorocarbon gas and He until the diffusion layers 1a and 1a are exposed.
Patent JP-H07134267-A (JP)
Title: Optical circulator
Inventor: KONNO YOSHIHIRO
IPC: G02B27/28
Filed: 1993-11-08
Abstract: PURPOSE:To enhance the reliability of optical prisms and an optical circulator including these optical prisms by eliminating resin fixing part, to enable adjustment as discrete polarized light beams at the time of assembly and to control the crosstalks between ports and insertion loss to optimum positions. CONSTITUTION:In this optical circulator, two pieces of pentagonal columnar prisms are arranged in symmetrical positions with ray transmission window parts A, G on the outer side, and a polarization independent type optical isolator formed by using flat plate double refractive crystals is arranged between these prisms, and also, one piece or plural pieces of the double refractive crystal plates B1 to B6 having the bearings and thicknesses of the crystals necessary for separating and coupling the rays which are reflected by the reflection side slopes M1, M2 of the pentagonal columnar prisms and propagate in a direction perpendicular to the propagation direction of the rays which are made incident, propagated and emitted on and from the ray transmission window parts, is arranged.
Patent JP-H01144539-A (JP)
Title: Cooling device for projection television
Inventor: MITANI KATSUAKI
IPC: H01J29/89
Filed: 1987-11-30
Abstract: PURPOSE:To maintain the performance against the temperature drift, make a device lightweight and small-sized, and reduce the cost by using a three-liquid mixture of ethylene glycol, diethylene glycol and glycerol as a cooling liquid filled in a liquid-tight space. CONSTITUTION:A liquid-tight space 9 is formed with a projection tube 1, a spacer 2, a radiator 3 and a lens 4, a cooling liquid 9a is filled to cool the projection tube 1. The cooling liquid 9a is formed with three-liquid mixed liquid of ethylene glycol, diethylene glycol and glycerol. This cooling liquid 9a has little permeation quantity, the vapor pressure is low and the inner pressure of the space 9 is low, thus the lens 4 and the cooling liquid 9a can be brought into direct contact with each other. The deterioration in lens performance due to the temperature drift does not occur, a liquid having the refraction factor approximate to that of the lens 4 can be obtained, and the contrast is improved. The device is thereby made lightweight and small-sized, and the cost can be reduced.
Patent JP-H05115156-A (JP)
Title: Method and apparatus for manufacturing screwed stator and rotor for motor
Inventor: OOHITO HAYATO
IPC: H02K15/02
Filed: 1991-10-21
Abstract: PURPOSE:To facilitate lamination work of thin core boards and coil insertion work by laminating the thin core boards while arranging the phase in peripheral direction to form a laminate, inserting a coil into linear slots made in the laminate, further inserting a rod into a positioning groove made in the outer peripheral surface of the laminate and then twisting the laminate. CONSTITUTION:Multiple slots 2 opening to the inner peripheral surface are formed in the peripheral direction of thin core boards which are also provided with a plurality of positioning grooves 3 at same intervals in the peripheral direction. A multiplicity of such thin core boards are laminated while arranging the phase in peripheral direction thus forming a thin core board laminate 10. The slots 2 and the positioning grooves 3 become parallel with the axis of the laminate 10. A coil is then inserted into the slots 2 followed by insertion of screwed rod 19 into a pair of positioning grooves 3. When two rods 19 are twisted in same direction, the slots 2 incline against the axis of the laminate 10 and screwed. According to the method, manufacturing manpower can be reduced and mechanization is realized.
Patent JP-H01143999-A (JP)
Title: Storage treatment of gas
Inventor: KOBAYASHI YOSHIHIRO
IPC: G21F9/00
Filed: 1987-11-30
Abstract: PURPOSE:To enable the storage treatment of gas with high implantation effi ciency by selecting the voltage to be impressed to a sputtering electrode within a range from -1.5kV to -2.5kV and the voltage to be impressed to the ion implantation electrode within a range from -150V to -300V. CONSTITUTION:This gas storage treatment device is equipped with a flow meter 15 and a pressure gage 16 to a gas suction pipe 8 and is also equipped with a system controller 17 which monitors the treatment quantity and pressure of the gas at all times by the output signals thereof and commands the sputtering voltage and ion implantation voltage. A voltage setter 18 which finely adjusts the voltage values of a sputtering power supply 10 and an ion implantation power supply 11 by the signals of the controller 17 is provided. The voltage to be impressed to the ion implantation electrode is so selected as to be within the voltage range from -150V above the threshold value to -300V generating a rerelease phenomenon. The operation is carried out by selecting the voltage to be impressed to the sputtering electrode so as to be within the voltage range from -1.5kV above the threshold value to -2.5kV at which the implantation rate attains saturation and the implantation efficiency tends to decrease.
Patent JP-H01201496-A (JP)
Title: Method for preventing local corrosion of weld zone
Inventor: KOSEKI TADASHI
IPC: B21B3/00
Filed: 1987-11-30
Abstract: PURPOSE:To prevent the local corrosion of a weld zone without a heat treatment after welding by welding a steel product having a specific compsn. consisting of C, Si, Mn, Nb, Cu, and Ni as basic components by a welding material having a specific compsn. which is limited in the content of Cu or the content of Ni. CONSTITUTION:The steel product which contains 0.05-0.12wt.% C, 0.1-0.4% Si, 0.8-1.5% Mn, <=0.1% Nb, 0.30-1.00% Cu, and 0.30-1.50% Ni as basic components, has 0.30-0.45% hardening parameter P at the time of welding expressed by the formula P=C+Si/20+Mn/6+Cu/20+Ni/20+Nb/12, and consists of <=0.005% S, 0.01-0.05% solAl, 0.005-0.01% Ca, <=0.05% Ti, and <=0.025% N is heated to 900-1,200 deg.C and is then subjected to controlled rolling at >=700 deg.C. The steel product is cooled with water down to <=350 deg.C immediately thereafter and is further tempered at 550-700 deg.C. The steel product obtd. in such a manner is welded by a welding material contg. C, Si, Mn, and Ti at the ratios equal to the ratios of the base metal, <=0.005% B, and further contg. the Cu less by 0.1-0.5% than the content of the Cu in the base metal and the Ni less by 0.2-1.5% than the content of the Ni in the base metal.
Patent JP-H11221686-A (JP)
Title: Method and apparatus for monitoring quality of laser beam weld part by measuring plasma size
Inventor: CHOU MAU-SONG
IPC: B23K26/20
Filed: 1998-10-23
Abstract: PROBLEM TO BE SOLVED: To provide a method and an apparatus for monitoring the quality of a laser beam weld part through the measurement of the plasma size. SOLUTION: In a method and an apparatus for monitoring the quality of the laser beam machining, for example, a laser beam welding, the beam emitted from the welding plasma above a surface 62 of a work irradiated with the laser beam is monitored. The plasma size is determined from the emitted beam, and compared with the prescribed value of the size determined under the machining condition and the condition of the work to produce a weld part of the quality of the acceptable level. The monitored plasma size which is larger than the prescribed value can provide a nonacceptable weld part. Such a nonacceptable one deviated from the prescribed value may be attributable to the change in the laser beam output and the work speed, problems in convergence of the laser beam, insufficient shield gas flow, deformation of the work, and pollution of the weld part. In the monitoring method, the emitted beam is monitored from the selected wavelength range corresponding to the main emission peak of the emission spectrum. The in-process control becomes possible in this method.
Patent JP-H09141585-A (JP)
Title: Semiconductor chip pick-up device and pick-up method
Inventor: TAKAHASHI YOSHIHARU
IPC: B25J15/06
Filed: 1995-11-22
Abstract: PROBLEM TO BE SOLVED: To pick up a semiconductor chip positively without generating dislocation of an adhesive sheet and the chip and generate no dust at the time of picking up. SOLUTION: The lower face of an adhesive sheet 2 with a plurality of individually divided semiconductor chips 1 stuck thereto is guided by a sheet guide face 14 formed of porous material 15, and the adhesive sheet 2 is sucked to the sheet guide face 14 by negative pressure acting through the sheet guide face 14. The tip of a pick-up needle 17 with the tip shape formed into a plane or a curved face is brought into contact with the lower face of the adhesive sheet 2 to push up the semiconductor chip 1 by the pick-up needle 17, thus separating the semiconductor chip 1. At the same time, the semiconductor chip 1 is sucked by a section nozzle 18 to separate the semiconductor chip 1 from the adhesive sheet 2.
Patent JP-H02149762-A (JP)
Title: Air supply structure for gas engine
Inventor: KUBO KATSUNORI
IPC: F02B43/00
Filed: 1988-11-29
Abstract: PURPOSE:To improve governing performance and stiffness of an air supply manifold and to uniformly supply air-fuel mixture to each cylinder by making the air supply manifold as a double tube structure having an inner tube and an outer tube and the inner tube as the tube for supplying air to a carburetor and the outer tube as the tube for supplying the air-fuel mixture to a combustion chamber and providing a plurality of the carburetors at an single air supply manifold. CONSTITUTION:Air flowed into an air cooler 4 from a turbocharger 3 via an air supply communicating tube 8 is cooled and then it is flowed into a carburetor 5 via an inner tube 10 and an air supply communication tube 12 and is mixed with fuel gas to be flowed in the combustion chambers of respective combustion chamber via an outer tube 11 and a connecting tube 15 and is combusted therein. Since an air supply manifold 9 is made as a double tube structure, the diameter of the outer tube 11 is made in a large diameter, air-fuel mixture capacity can be made small, governing performance can be improved and the vibration of the air supply manifold can be prevented. Two carburetor 5 are provided at a single of the air supply manifold 9 so that air-fuel mixture can be uniformly supplied to the combustion chambers of respective cylinders so as to prevent the change of combustion and the change of load.
Patent JP-2000123109-A (JP)
Title: Optical recording medium and optical recording medium writer/reader
Inventor: SUZUKI HIDEO
IPC: G03H1/04
Filed: 1998-10-09
Abstract: PROBLEM TO BE SOLVED: To prevent forgery and alteration by performing recording onto an optical recording medium while providing a recording part and an erasing part for a hologram pattern so that a combinational code composed of binary codes can correspond to the recording part and erasing part for the hologram pattern. SOLUTION: The information of binary codes, to which combinational coding is performed, is recorded on an optical recording medium 1 corresponding to the erasure/non-erasure of a hologram image. Every information, to which combinational coding is performed, is recorded by the erasure/non-erasure of plural holograms 2 in a group allocated for every information. As an erasing method for holograms 2, they are erased by a thermal head 3. The light of LD is reflected on the hologram 2, its image is received by an imaging device, and information is provided by judging the non-erasure/erasure of the hologram 2 corresponding to the presence/absence of the desired hologram image. In alteration analysis, the imaging device comprehends the presence/absence of the hologram image as binary codes and when the combinational code is formed as ruled, the absence of alteration is judged.
Patent JP-2000126177-A (JP)
Title: Ultrasonic diagnostic apparatus
Inventor: KONDO YUJI
IPC: A61B8/00
Filed: 1998-10-26
Abstract: PROBLEM TO BE SOLVED: To reduce the side lobe in an ultrasonic diagnostic apparatus. SOLUTION: The first beam and the second beam adjoining each other are formed simultaneously or in time sharing. The first receiving signal 100 and the second receiving signal respectively corresponding to them are converted to complex signals and phase correction is performed to one of the complex signals 106 between them. After the phase correction, weighting is performed to two complex signals and then, addition is performed and absolute value operation is performed to the complex signals after the addition. It is possible thereby to adjust amt. of correction while the displayed tomographic image is observed and to reduce side lobe by such the adjustment as this. It is also possible to set automatically amt. of the phase correction.
Patent JP-H09119573-A (JP)
Title: Flexible hume pipe
Inventor: MIYAHARA TSUYOSHI
IPC: F16L27/10
Filed: 1995-10-26
Abstract: PROBLEM TO BE SOLVED: To facilitate the handling of a Hume pipe and simultaneously prevent water tightness from lowering by limiting the deformation of a flexible part. SOLUTION: A flexible part 3 is arranged comprising a pair of T-shaped rigid ring bodies 4 arranged opposedly at a specified distance, an elastic ring body 5 which is provided between the rigid ring bodies so that a space part 18 is present on the outer side between the rigid ring bodies and integrated through a fixing means 6, and an anchor 7 which is projected to the side opposite to the elastic ring body of the both rigid ring bodies. Also a fiber-reinforced resin rigid layer 21 is formed on the outer surface of the rigid ring bodies across the both rigid ring bodies, and foaming urethane is filled into a filling hole 19 drilled in the fiber-reinforced resin rigid layer so as to form a foaming urethane layer 20.
Patent JP-H01143908-A (JP)
Title: Thin film thickness measuring instrument
Inventor: KATAGIRI KIYOO
IPC: G01B11/00
Filed: 1987-11-30
Abstract: PURPOSE:To improve the convergence efficiency of a projected laser light beam and to improve the accuracy of measurement by drooping and supporting an eddy current sensor which measures the distance to the surface of a substrate at the center part of an instrument frame and also arranging a laser sensor which measures the distance to the surface of a thin film at its periphery. CONSTITUTION:The eddy current sensor 2 which is drooped and fitted to the center part of the instrument frame 1 measures the distance to the surface of the substrate 12a and the laser source 3 composed of a light projection part 3a and a photodetection part 3b is arranged at the periphery of the sensor 2 and measures the distance to the surface of the thin film 12b. A distributed index lens 5 is used as the converging lens of the projection part 3 and its length is set to an equation I (where lambda is the wavelength of the light beam in the lens 5, (n) is an integer, and alpha<lambda/4). Thus, the substrate 12a is a conductor, so the sensor 2 measures the distance L to the surface of the substrate 12a and the sensor 3 measures the distance L to the surface of the thin film 12b at the same time. Consequently, the distance L-L is detected and measured as the thickness of the thin film.
Patent JP-H03163836-A (JP)
Title: Charge coupled device
Inventor: UENO MASAFUMI
IPC: H04N5/355
Filed: 1989-11-21
Abstract: PURPOSE:To avoid the deterioration in the transfer efficiency thereby enabling the title charge coupled device to be highly integrated by a method wherein an electrode group exhibiting no overlap structure as well as an electrode impressed with DC voltage as an upper layer of the electrode group is provided. CONSTITUTION:An upper layer electrode 10 is provided above a lower layer electrode group comprising electrodes 3-6 through the intermediary of an insulating film 9 comprising e.g. an SiO2 film while the electrode 10 is impressed with DC voltage from a DC power supply 11. That is, the electrode 10 is provided as if overlapping with the electrode group 3-6 and then the electrode 10 is impressed with DC voltage to control the potential below the lower layer electrode group 3-6 so that the electrode length of said group may not be restricted just like in case of an overlap electrode structure to abolish the potential barrier between said electrode group causing the deterioration in transfer efficiency. Through these procedures, the title charge coupled device can highly be integrated for improving the transfer efficiency.