baber/WOPTO huggingface dataset:
Patent JP-H11135875-A (JP)
Title: Method of manufacturing semiconductor optical element
Inventor: MOMOSE MASAYUKI
IPC: H01S5/00
Filed: 1997-10-29
Abstract: PROBLEM TO BE SOLVED: To prevent an element from being introduced into a region which does not squire the element, when the elements are added into an active layer of the end of a laser resonator to increase the forbidden bend width by forming a thin film made of a material, containing impurities diffused in the end of a resonator of a semiconductor laser element and then heat-treating the thin film. SOLUTION: Nitrogen ions are implanted into the one side end of an element comprising an n-GaAs substrate 21, an n-AlGaInP clad layer 22, an InGaP/ AlGaInP MQW active layer 23, a p-AlGaInP clad layer 24, p-side electrode 25, and an n-side electrode 26, and then the element is heat-treated by a RTA method in a nitrogen atmosphere, for example, at a temperature of 600 deg.C for 50 seconds to produce a region 27 into which nitrogen ions are introduced. The introduction of nitrogen ions into the end of a resonator forms bindings such as Ga-N, Al-N which, as a result, increase a forbidden band width at that end portion. This restrains the absorption of laser light at the end of the resonator and hence makes a break at the end surface thereof unlikely to occur.
Patent JP-H02143429-A (JP)
Title: Semiconductor device for its manufacture
Inventor: INABA MICHIHIKO
IPC: H01L23/52
Filed: 1988-11-24
Abstract: PURPOSE:To improve conductivity and electromigration resistance by arranging a wiring layer on an insulating layer via a diffusion barrier layer, and forming said wiring layer of Cu-Ag alloy. CONSTITUTION:On an Si substrate 1 on which elements have been formed, an SiO2 film 2 is deposited, and thereon a diffusion barrier layer 3 and an Ag pattern 4 are formed; after a Cu layer 5 is formed on the pattern 4, a passivation film 6 is deposited. When annealing is performed in an N2 atmosphere, the Ag pattern 4 is diffused into the Cu layer 5, and a wiring layer 5 composed of Cu-Ag alloy is formed. In this constitution, the layer 7 has a conductivity approximate to that of pure copper; the generation of disconnection caused by electromigration and stress migration can be prevented; diffusion into the alloy film 2 constituting a wiring layer is avoided.
Patent JP-H07150394-A (JP)
Title: Method for removing sludge depositing on electrode in electrodeposition coating device and device therefor
Inventor: OGIWARA SEISUKE
IPC: C25D13/24
Filed: 1993-11-26
Abstract: PURPOSE:To prevent the diffusion of the sludge released from a bare electrode provided at the bottom of an electrodeposition tank into an electrodeposition paint and to prevent the deposition of the sludge on a material to be coated. CONSTITUTION:A side electrode 4 covered with a diaphragm 7 and a bare bottom electrode 5 having no diaphragm 7 are provided in an electrodeposition tank 1. The bottom electrode 5 is enclosed with an electrode case 24 on which a net permeable to an electrodeposition paint and impermeable to sludge is wound. A pump 28, filter 29 and flow control valve 30 are furnished to an electrodeposition paint circulating pipeline 26 with one end connected to the inside of the case 24 and the other end to a riser 31 in the tank 1. The sludge released from the bottom electrode 5 is sucked into the pipeline 26 along with the paint and passed through the filter 29, and a clean electrodeposition paint free from sludge is returned to the tank 1.
Patent JP-2000039345-A (JP)
Title: Water meter
Inventor: KYO TATSUEI
IPC: G01F1/075
Filed: 1998-10-19
Abstract: PROBLEM TO BE SOLVED: To provide a water meter capable of exactly sensing even little flowrate of water supplied. SOLUTION: A water meter has a meter body 1 having a flow inlet 2 and an exhaust outlet 3 and an upper cover 12 closing the upper end opening of the meter body 1. In the bottom inner surface center of the meter body 1, a projection 20 is formed and a water wheel 4 is supported by pivot on the projection 20. In the upper part of the water wheel 4, a gear placing plate 24 is provided, to which 24 a worm gear 26 in a super gear form provided with punched holes 27 for reducing weight and a magnet 10 is supported. The worm 5 of the water wheel 4 and the worm gear 26 are gearing in. In the upper part of the gear placing plate 24, a sensor 11 sensing the rotation of the worm gear 26 is provided.
Patent JP-H07153001-A (JP)
Title: Output detector circuit for magnetoresistance element
Inventor: ENDO YOICHI
IPC: G11B5/39
Filed: 1993-11-26
Abstract: PURPOSE:To differentially amplify an output of a magnetoresistance element without delay of a transient response time by providing a delay circuit for delaying switching of a differential amplifier from switching of a bias circuit. CONSTITUTION:Switchings of transistors Q31, Q32 of second and third constant current means in a differential amplifier 3 from ON to OFF are delayed from switching of a transistor Q22 of first constant current means of a bias circuit 2 by a delay circuit 4. That is, when currents I31, I32 flow to the transistors Q31, Q32, a bias current I22 always flows to a magnetoresistance element (MR) 1, and a DC potential difference is generated between terminals V1 and V2 of the MR1. Thus, a capacitor C3 is charged in an initial read mode, and charge of the C3 is not discharged upon switching of its following mode. Accordingly, a potential difference of outputs OUT1 (V5), OUT2 (V6) of the amplifier 3 is set to zero, and a transient response time from reception of a control signal for operating the amplifier is shortened thereby to eliminate a delay.
Patent JP-H02144113-A (JP)
Title: Air cleaning system
Inventor: ISHIDA YOKO
IPC: B01D46/42
Filed: 1988-11-24
Abstract: PURPOSE:To improve the cleaning efficiency of the title system by providing a controller for separately adjusting the amts. of air to be blown by the output signal detecting a contaminant source, and suspending a filter around a blowoff port. CONSTITUTION:A filter 7 is extended vertically downward from a ceiling surface 13 along the blowing surface in a room 9. The blowoff port 1 and the suction port 2 are connected by a duct 3. A fan 8 and a filter 4 for collecting ultrafine contaminant such as the smoke of cigarette 10 are provided in the duct 3, and a controller 6 for adjusting the amts. of air to be blown from the blowoff ports 1 at the two end faces confronted with each other by an IR sensor 5, etc., for detecting the contaminant source position and its output signal is also furnished. The air is discharged from the blowoff port 1, circulated in the room 9, and returned to the suction port 2 while being cleaned. consequently, the air cleaning efficiency by ventilation is improved. In addition, the amts. of air to be blown from the blowoff ports 1 are adjusted by the controller 6 to generate an ascending air current at the position of the contaminant source 10.
Patent JP-H01141248-A (JP)
Title: Positioning of mounting base standard plane for plural vibration suppressing devices
Inventor: FUKUDA MASAYOSHI
IPC: F16F15/04
Filed: 1987-11-24
Abstract: PURPOSE:To permit the use of plural small-sized vibration suppressing devices similarly as a single large-sized vibration-suppressing device by setting the mounting base of one vibration suppressing device as standard and carrying out the compulsory positioning so that the level of the mounting base of the other vibration suppressing device is positioned on an equal plane to that of the mounting base as standard. CONSTITUTION:A vibration suppressing device 10 as standard and a vibration suppressing device 20 to be controlled are installed. Each distance from the standard plane S at the both edges of the mounting base 11 of the vibration suppressing device 10 is represented as X1, X2, and each distance from the standard plane S at the both edges of the mounting base 21 of the vibration suppressing device 20 is represented as X3, X4. When the length (a) of each mounting base of the vibration suppressing device 10 and 20 is represented by (a), and the distance between the centers of the mounting bases 11 and 21 of the vibration suppressing devices 10 and 20 is represented by (b), each distance X3, X4 on the mounting base 21 can be represented by the distance X1, X2 on the mounting base 11. Therefore, the level of the mounting base 21 of the vibration suppressing device 20 can be controlled by detecting the positions of two points on the mounting base 11 of the vibration suppressing device 10.
Patent JP-H02145141-A (JP)
Title: Depth measuring float
Inventor: OTSUKA KATSUMI
IPC: A01K93/00
Filed: 1988-11-26
Abstract: PURPOSE:To enable simple determination of the depth under a float ('TANATORI') in a short time by connecting a clamping mechanism having a specific construction, so-called one-way clamp to the lower end of a float. CONSTITUTION:The above-mentioned depth measuring float is provided with a one-way clamping mechanism in which the whole clamping unit 4 or a part in contact with a main line 2 is made of an elastomer, such as rubber, having a high friction coefficient with the main line and a lower hardness than that of the main line. For example, the clamping unit 4 is urged upward with a spring 5, etc., and brought into contact with the inner surface of an upward opening slope 6 so as to nip the main line 2 between a pressure receiving surface 9 and the clamping unit 4.
Patent JP-H09136359-A (JP)
Title: Repairing method for bathtub
Inventor: TAKAHASHI SABURO
IPC: A47K3/02
Filed: 1995-11-15
Abstract: PROBLEM TO BE SOLVED: To carry out repairs to hold a sense of beauty for a long period without releasing due to the engagement by a pawl by finishing in a clear surface after a damage is eliminated. SOLUTION: A colored ultraviolet curable resin 3 colored with the same color as that of a bathtub 1 is charged in the recess 2 provided on the damaged part of the bathtub 1. The part charged with the resin 3 and the vicinity are coated with transparent ultraviolet curable resin 4. The layer of the resin 4 is coated with transparent resin film 5 having no adhesive properties, and a masking material 7 cut out with an opening 6 is laminated on the film 5. Then, ultraviolets are emitted to the resins 4, 3 from an ultraviolet lamp 8 disposed above the material 7 via the opening 6 to cure not only from directly above but also from obliquely above. Thereafter, the material 7 and film 5 are released, and the part of uncured resin 4 is removed.
Patent JP-H09255943-A (JP)
Title: Cold storage material
Inventor: TAKEI MASAYOSHI
IPC: C09K5/08
Filed: 1996-10-18
Abstract: PROBLEM TO BE SOLVED: To obtain a cold storage material which has a shortened time necessary for being cooled and does not freeze and remains flowable even when it is cooled to a temperature considerably lower than 0 deg.C by mixing butanediol with polyethylene glycol. SOLUTION: This material is obtained by mixing butanediol with 2-10wt.%, based on the butanediol, polyethylene glycol having a molecular weight of 190-60,000. When the material has a suitable composition, it does not freeze and can remain liquid to a temperature as low as -70 deg.C. It may optionally contain 1-99wt.% (inner %), based on the butanediol/ethylene glycol mixture, water.
Patent JP-H02143694-A (JP)
Title: Picture signal conversion circuit
Inventor: NAGASHIMA KUNIO
IPC: H04N9/67
Filed: 1988-11-24
Abstract: PURPOSE:To attain the conversion of a video signal in the state of a digital signal and to hardly receive noise effect by using a conversion list in a memory so as to convert a luminance color difference video signal into an RGB video signal. CONSTITUTION:Inputted luminance color difference video signals Y,I,Q are converted into digital signals Y,I,Q by A/D converters 100,101,102 respectively and fed to address inputs A0 - A3, A4 - A7, A8 - A11 of a memory 103. RGB video signals R,G,B corresponding to the signals Y,I,Q being the result of digital coding are written in addresses Q,I,Y of the memory 103 in advance. Thus, the values R,G,B are read at outputs D0 - D3, D4 - D7, D8 - D11 of the memory 103. The signals are converted into video signals R,G,B by D/A converters 104,105,106.
Patent JP-H05107972-A (JP)
Title: Pressurizing roller for fixing device
Inventor: SAKAIZAWA KATSUHIRO
IPC: G03G15/20
Filed: 1991-10-18
Abstract: PURPOSE:To provide the pressurizing for a fixing device which can exhibit good fixability while preventing the generation of paper wrinkle. CONSTITUTION:The elastic layer of the pressurizing roller 9 is formed of a sponge layer 10 formed of porous silicone rubber and a PFA tube 11 clad on a sponge layer 10. The roller hardness is set at >=45 deg. to 60 deg. (ASKER-C). As a result, an adequate nip is formed without impairing the function to prevent the paper wrinkling by porosity and the good fixability is obtd.
Patent JP-H09129692-A (JP)
Title: Method of inspecting wafer
Inventor: ERUNSUTO BIIDAAMAN
IPC: G01N21/55
Filed: 1996-10-21
Abstract: PROBLEM TO BE SOLVED: To accurately conduct inspection work by sorting defective wafers in such a way that the wafers are directly exposed to light and the surface reflectivity of the wafers at dots is detected at a prescribed angle, and then, the detected reflectivity values are temporarily stored and whether or not the waters are normal is discriminated by comparing the stored reflectivity values with prescribed comparative values. SOLUTION: When a wafer WF to be inspected is directly exposed to light from an aligner Lt1, a resist film reflects the incident light Lt. An image pickup device CAM detects the picture of the film in dots and transmits the reflectivity R value of the resist film detected at many dots to an evaluating device PC for temporary storage. Then whether or not the detected wafer WF is normal is decided by comparing the detected and temporarily stored reflectivity R values with prescribed comparative values which are similarly detected from a comparative wafer and stored in advance. Detected detective wafers are sorted and disposed or corrected. Therefore, the inspection work can be performed accurately and, at the same time, the burden of the inspector can be lightened.
Patent JP-H10120788-A (JP)
Title: Polysulfide polymer
Inventor: MATSUI TATSURO
IPC: C08G75/02
Filed: 1996-10-21
Abstract: PROBLEM TO BE SOLVED: To obtain a polysulfide polymer having excellent stability, oil resistance, chemical resistance, weather resistance and gas barrier property and useful as a sealing material, etc., by controlling the structure so that the polymer is liquid at the ambient temperature and has an average bonding number of sulfur in a recurring unit in a specific range. SOLUTION: Into the main chain of a polymer of the formula: R<2> SR<1> (Sx R<1> )n SR<2> [R<1> is a 2-10C (oxy) alkylene or a polyoxyalkylene having an oxygen number of 2-20; R<2> is OH, vinyl or silyl and free from SH; (x)=1,7-2; (n)=1-50], sulfur is added so that (x) satisfies the relation 2<x<=6, for example, by using an alkali catalyst such as an amine or an anionic surfactant in an amount of 0.02-5.0 pts.wt. based on 100 pts.wt. of the polymer at a temperature of 40-110 deg.C.
Patent JP-2001118796-A (JP)
Title: Reaction tube for semiconductor wafer
Inventor: MORIYA KAZUO
IPC: H01L21/66
Filed: 1999-10-20
Abstract: PROBLEM TO BE SOLVED: To solve the problem that temperature cannot be accurately measured since the radiation rate of a wafer is changed according to the temperature and the type of films by an infrared radiation thermometer, a thermocouple being provided on the surface of a dummy wafer falls off, and a device for maintaining the airtightness of feedthrough or the like is required although the infrared radiation thermometer is used for measuring the temperature of a semiconductor wafer, or the dummy wafer where the thermocouple is provided on the surface is used for setting the temperature conditions of film formation in a conventional reaction tube for semiconductor wafers. SOLUTION: In a reaction tube for semiconductor wafers, a plurality of cylindrical projections for supporting wafers inside a flat tube body with spaces for accommodating semiconductor wafers inside, and an insertion part for inserting a temperature sensor from the outside is formed inside the plurality of projections. The cylindrical projections are formed in an inverted cup shape for blocking a through hole being connected to the space being provided on a bottom wall of the tube body, an internal thread is formed on the inner- periphery surface of the through hole, and a temperature sensor is screwed to the internal thread part.
Patent JP-H10121597-A (JP)
Title: Sound absorption body and vehicle using the same
Inventor: MATSUOKA YOSHITO
IPC: E04B1/86
Filed: 1996-10-22
Abstract: PROBLEM TO BE SOLVED: To demonstrate sound absorption superior in a wide frequency band by specifying density and thickness of a skin and the density of an inside body respectively in a sound absorption body provided with the porous inside body and the fine skin formed on the surface of the inside body. SOLUTION: In a sound absorption body provided with a porous inside body and a fine skin formed on the surface of the inside body, density of the skin is 0.15-0.6g/cm<3> , thickness of the skin is 0.01-0.2mm, and the density of the inside body is 0.015-0.075g/cm<3> . In other words, the skin is fine to some degree, and has a high density as compared with the inside body, and ventilation is suppressed, so that sound absorption is produced by film resonance in a low frequency range, the density of the skin is made slightly small, the skin is provided with, ventilation property, and sound absorption is produced by air friction of the inside body in a high frequency range. Thereby sound absorption property superior in the wide frequency band of 500-6300Hz can be demonstrated.
Patent JP-H04171794-A (JP)
Title: Manufacture of metal-clad laminate board
Inventor: YAMAKAWA MASAE
IPC: H05K3/38
Filed: 1990-11-02
Abstract: PURPOSE:To ensure a reliability test even with a very thin base material layer by superimposing on one surface of a prepreg a metal foil with four sides each side being longer by a predetermined length than the prepreg and an upper mirror plate of the same size as the former, and further superimposing on the opposite surface a metal foil with four sides each side being shorter by a predetermined length than the prepreg and a lower mirror plate of the same size as the upper mirror plate. CONSTITUTION:A prepreg 2 is held between a metal foil 1 with its four sides, each side being longer about 5-150mm than the prepreg and a metal foil 8 with four sides, each side being shorter by about 5-100mm than the prepreg, and further an upper mirror plate 3 of the same size as the metal foil 1 is superimposed on the prepreg and a lower mirror plate 3 of the same size as the lower mirror plate superimposed. Further, a mold-release sheet 4 is bonded to the inner surface of the lower mirror plate 3 so as to overlap the end of the metal foil 8. The constituent material described above is heated and pressurized and molded to yield a metal-clad laminate board Hereby, there can securely be performed an electrical raliability test of the metal-clad laminate board comprising an about 50-100mum thick insulating base material before processing a circuit.
Patent JP-H01138671-A (JP)
Title: Synchronizing type storage device
Inventor: TERAOKA EIICHI
IPC: G11C11/34
Filed: 1987-11-25
Abstract: PURPOSE:To reduce an electric energy consumption by making coincident the level of a bit line, detecting that a word line is selected, sensing the difference between the levels of a bit line in accordance with a control signal outputted and making one side level into a constant potential. CONSTITUTION:Transistors 1 and 2 for equalization, when an enable signal 3, which becomes a synchronizing signal, becomes 'H', is turned ON, bit lines 22a, 22b, 22c and 22d are respectively conducted and a level is made coincident. A control circuit 4, when the enable signal 3 is 'L', detects that word lines 23a-23c are selected, outputs a control signal 5, sense circuits 6 and 7, when the control signal is received, sense the bit line of the L level side of a pair or two connected bit lines 22a, 22b or 22c, 22d, makes the level of one side bit line into a constant potential, and lowers the level of the bit line to execute a discharging.
Patent JP-H03157634-A (JP)
Title: Sector opening and closing device
Inventor: ODA HAJIME
IPC: G03B9/10
Filed: 1989-11-16
Abstract: PURPOSE:To make the device compact and to reduce the cost of the device by providing a sector energized in a direction where an aperture is closed, two rope-like shape memory alloys which perform the opening action and the release action of the sector by impressing a voltage and an intermediate mechanism. CONSTITUTION:By impressing a voltage pulse on the rope-like shape memory alloy 18, the alloy 18 is suddenly contracted. Since a tension spring 22 is stronger than a torsion coil spring 17, at such a time, a coupling member 21 does not move and a 2nd driving lever 14 rotates clockwise resisting the force of the spring 17. Then, a 1st driving lever 12 follows it and shutter blades 4 and 5 are opened. When the voltage pulse is impressed on the 2nd shape memory alloy 24 after specified time, the member 21 rotates clockwise resisting the spring 22 to push the alloy 18 clockwise, and the blades 4 and 5 are rapidly closed by the force of the spring 17, thereby complying with even an object with high brightness. Since the alloys 18 and 24 are like a rope, direction change is freely performed and the alloy is appropriate for making the device compact. Furthermore, the cost of electric parts is reduced by actuating the alloy at a low voltage.
Patent JP-2000121908-A (JP)
Title: Method and device for lens driving
Inventor: YASUDA TOSHIYUKI
IPC: G02B7/04
Filed: 1998-10-20
Abstract: PROBLEM TO BE SOLVED: To provide a lens driving device at which a stepping motor gets out of the infeasible state of operation even though the stepping motor is set in the infeasible state of the operation by exceeding the moving range of a lens. SOLUTION: When it is detected that the stepping motor (stepping motor unit 4) is set in infeasible state of the operation by exceeding the movable range of a focusing lens 1 by a signal from a photointerrupter 5 by a microcomputer (detecting means and controlling means), the microcomputer 10 controls to supply the driving pulses of a specified number in the get-out-of direction of the lens from the outside of the movable range and to supply the driving pulses whose number is smaller than the specified number in a reverse direction of the get-out-of direction to repeat the supply.
Patent JP-H08208682-A (JP)
Title: Production of alkyl glycoside
Inventor: BURUKUHARUTO GURIYUUNINGU
IPC: C07H15/04
Filed: 1995-11-16
Abstract: PROBLEM TO BE SOLVED: To efficiently obtain the subject glycoside useful as a sugar surfactant, etc., by acetalizing a sugar with an excess amount of an alcohol and subsequently separating the excess alcohol by extraction with an extraction agent, close to a critical point, at a specific reduced pressure.  
     SOLUTION: This method for efficiently producing the alkyl glycoside comprises acetalizing a sugar such as glucose with an excess amount of an aliphatic alcohol such as dedecyl- or tetracyl-alcohol, feeding a mixture of the aliphatic alcohol FA and the alkyl glycoside APG from a feed container FB into an extraction tower EK with a pump P, feeding an extraction agent K close to the critical point, such as dimethyl ether, into the bottom of the extraction tower EK through a heat exchanger W at a reduced pressure in the range of 0.8 to 1.3, preferably of 0.9 to 1.2, at pressures, which are selected so that the density of the extraction agent, which is close to the critical point, is greater than 180 kg/m 2 , thus extracting off the excess aliphatic alcohol, and subsequently releasing the produced alkyl glycoside APG into a spray device S at the atmospheric pressure to perfectly remove the extraction agent. 
     COPYRIGHT: (C)1996,JPO