baber/WOPTO huggingface dataset:
Patent JP-H09131096-A (JP)
Title: Protective device for exciting circuit of variable speed generator-motor
Inventor: NAKANO HIDEYUKI
IPC: H02H7/06
Filed: 1995-10-30
Abstract: PROBLEM TO BE SOLVED: To provide a protective device for the exciting circuit of a variable- speed generator-motor capable of detecting the grounding of the exciting circuit for the primary winding of a motor generator composed of an inverter and a converter with good precision in accordance with the point of grounding. SOLUTION: An exciting circuit for a variable-speed motor-generator has an inverter 2 by pulse width modulation, a converter 3, and a DC linking part B which connects the inverter 2 and the converter 3 with a direct current. And, the input part of the converter 3 is connected to a power system, and the output part of the inverter 2 is connected to the secondary windings of a generator-motor. And the output of the primary windings of the generator- motor is controlled by AC-exciting the secondary windings of the generator- motor. At this time, the current or voltage of a grounding resistor 8 for grounding the DC linking part B is detected, and first-order lag operation is performed to this detected output. And a comparing means 12 compares this first-order lag operation value with a set value for judging a grounding current, and outputs a grounding detection signal. Consequently, it becomes possible to detect grounding with precise sensitivity at the time of grounding.
Patent JP-H08111647-A (JP)
Title: Decoder of single error correction and multiplex error detection bch code
Inventor: OKANO HIROICHI
IPC: H03M13/00
Filed: 1994-10-20
Abstract: PURPOSE: To enforce efficient error correction and detection by preventing an unnecessary error correction from being executed by using the decision expression calculated from syndrome. CONSTITUTION: Syndrome Sj is calculated by a syndrome generation mean 1 from a reception word, and when all the syndrome is zero, it is decided that an error does not exist. In an error correction/detection discrimination means 3, the number of errors is decided by the discrimination expression Z for which the syndrome Sj is used. When the Z is zero, it is decided that the number of errors is within 1. When the Z is not zero, it is decided that the number of errors is 2 or more. Each decision signal is transmitted to an error correction execution/detection means 4. When the number of errors is within 1 or in parallel to a decision operation, the decoding means 2 of a multiplex error correction BCH code determines the number of error locations within 1 of error.  When the number of error is within 1, the error correction execution/detection means 4 executes the error correction based on the number of error locations. When the number of errors is 2 or more, an error detection mark is set and the correction is not executed.
Patent JP-H09129682-A (JP)
Title: Bonding tool and device mounting method
Inventor: SAKAMOTO YASUHIRO
IPC: H01L21/60
Filed: 1995-10-30
Abstract: PROBLEM TO BE SOLVED: To provide a bonding tool capable of preventing an suction fail of a TCP(tape carrier package) device due to a device suction jig and performing mounting onto a circuit substrate of the TCP device with high manufacturing yield; and a device mounting method. SOLUTION: A TCP device 200 is sucked to a device suction face 11a of a device suction jig 11. A bonding tool body 10 is driven so as to descend, and a support ring 22 of the TCP device 200 which is sucked and fixed to the device suction jig 11 is abutted against a mounting face of a circuit substrate. Next, the bonding tool body 10 is further driven so as to descend, so that a spring 13 is contracted while a device press face 11a of the lead press jig 11 is abutted against an outer lead 21, and the outer lead 21 and an electrode group are pressed to be connected to each other.
Patent JP-H05119641-A (JP)
Title: Image forming device
Inventor: OTSU KAZUHIKO
IPC: G03G15/16
Filed: 1991-10-28
Abstract: PURPOSE:To obtain an image forming device by which excellent printing quality is attained by executing electrostatic charge by the output voltage of a transfer electrostatic charger and setting the surface potential of a recording paper arriving a first printing station to be within prescribed range. CONSTITUTION:The printing stations 71-74 obtained by opposedly arranging at least an electrostatic charger 4, an exposure device 5 and a developing device 6 on the circumferential surface of a latent image carrier 2 are provided. Besides, a paper supply device 10 and the transfer electrostatic charger 11 are arranged. Then, a destaticizer 21 is opposedly arranged and an output regulation means which regulates the destaticizing output of the destaticizer 21 within the range where potential difference is left at the attachment part and the non-attachment part of developer on the surface of the carrier 2 is provided. Then, the electrostatic charge is executed by the output voltage of the charger 11 and the surface potential of the recording paper arriving at the first printing station 7 is set to be 600-1000(V) by an absolute value. Therefore, the surface potential of the recording paper passed through the plural printing stations 71-74 is maintained within the excellent range for transferring toner. Thus, the image forming device by which the excellent printing quality is attained is obtained.
Patent JP-H03183183-A (JP)
Title: Electric wavelength tuning semiconductor laser
Inventor: MIHIAERU SHIRINKU
IPC: H01S5/11
Filed: 1990-10-19
Abstract: PURPOSE: To provide a semiconductor laser having a wider continuous tuning wavelength range and a high optical output by making the energy of photons injected into a laser activation region from a photon emission region lager than the sum of the chemical potential of electron-hole pairs and the energy of vertical phonons in the laser activation section. CONSTITUTION: When photons are injected into a laser activation region from a photon emission region of a semiconductor laser with energy hνWG, a photon can raise one electron to a conductor band B from the Fermi sea of a valence band A. When an electron generated by the injection of the photon has energy higher than the chemical potential of the electron and hole plasma(EHP) in the laser activation region by at least the magnitude of the lattice energy, the electron scatters one photon of an optical mode with energy hνLO. In order to block this process, the band edge energy EWG=hνWG in a waveguide region must be larger than the energy hνLO of the photon.
Patent JP-H05116265-A (JP)
Title: Manufacture of phenol-resin laminated board
Inventor: AIBA HIROSHI
IPC: C08L61/04
Filed: 1991-10-28
Abstract: PURPOSE:To obtain a laminated phenolic resin board having excellent curability and superior punchability, water resistance, electrical characteristics and mechanical characteristics by adding a drying-oil-modified cresol/aldehyde resin to a drying-oil-modified phenol-form-aldehyde resin. CONSTITUTION:The mixture of an m-cresol/p-cresol mixture, aldehydes and an acid catalyst is reacted for 0.5-5 hours at 60-150 deg.C as an A component, aldehydes are dropped for reaction, drying oil and the acid catalyst are added, and the whole is reacted for 0.5-5 hours at 100-150 deg.C. Drying oil such as tung oil and phenols are reacted under the acid catalyst as a B component, and reacted in the presence of formaldehyde and a basic catalyst and changed into a resol. The 3-50 pts.wt. A component is added to the 100 pts.wt. B component.
Patent JP-H05102418-A (JP)
Title: Manufacture of semiconductor device
Inventor: TANAKA HIROYUKI
IPC: H01L27/04
Filed: 1991-10-03
Abstract: PURPOSE:To provide a manufacturing method of a semiconductor device which enables easy formation of an extremely thin capacitor insulating film of a low defective density and a low leak current and wherein an increase of a cell capacity can be expected. CONSTITUTION:After a gate electrode 3 and a source/drain 4 are formed on a semiconductor substrate 1, an SiO2 film 5 is formed all over and a cell contact 5a is formed. Then, after a storage electrode 6 and a silicon nitride film 7 which becomes a capacitor insulating film are formed one by one and annealed at a high temperature, a surface of the silicon nitride film is oxidized in water vapor atmosphere and a cell plate electrode 8 is formed on an upper surface thereof. Thereafter, a BPSG 9 is formed all over and an aluminum 10 is formed on an upper surface thereof.
Patent JP-H07273031-A (JP)
Title: Manufacture of silicon substrate
Inventor: HAYASHI YUTAKA
IPC: H01L21/318
Filed: 1994-11-16
Abstract: PURPOSE:To obtain a silicon substrate excellent in electrical and photoelectric properties by a method wherein a buffer layer is interposed between a ceramic substrate and a crystalline silicon film so as to lessen contaminant impurities which migrate from a ceramic substrate to a crystalline silicon film and to enable crystals of large grain diameter to grow in the crystalline silicon film. CONSTITUTION:A buffer layer 2 of silicon nitride single layer film or silicon oxide.nitride intermcdiate compound single layer film is provided onto the surface of a ceramic substrate 1, and a silicon film is deposited thereon and melted into a crystalline silicon film 3.
Patent JP-H01310729-A (JP)
Title: Method for setting an adjusting mixing ratio of plural species of particulate, and method and apparatus for mixing them
Inventor: MATSUNAGA MASABUMI
IPC: B01F15/04
Filed: 1987-11-07
Abstract: PURPOSE:To attain a mixing of high accuracy and high dispersion while air- spraying plural species of particulate with respective ejectors by controlling air supplies to the ejectors by electric pulse signals and making the sprays collide with each other. CONSTITUTION:Plural species of the particulates A and B are air-sprayed into a semi-closed funnel-shaped vessel 1 by respective particulate ejectors 3A and 3B. These spray flows collide with each other to form an aerosol and are mixed up together by reflected flows Sr and Sc generated at that time. A mixing ratio at that time is regulated by (volume)X(velocity) of air supplied to the particulate ejectors 3A and 3B. Therefore, a desired mixing ratio is obtained by selecting cycles and interruption times of electric pulse signals in millisecond unit, setting them into a commercial pulse controller 6 and sending these signals to solenoid-type air valves 5A and 5B. A mixture thus formed is led to an air-powder separator 8.
Patent JP-H02127809-A (JP)
Title: Surface acoustic wave transducer
Inventor: YAMAMOTO TAIJI
IPC: H03H9/145
Filed: 1988-11-07
Abstract: PURPOSE:To attain the weighting with a degree of freedom and to prevent the deterioration due to the effect of diffraction by differentiating the width of an electrode finger of electrode elements in pairs opposite and adjacent to each other on a piezoelectric substrate and making the electrode pitch of each electrode finger constant. CONSTITUTION:Electrode fingers 13, 14 of finger widths G1, G2, different from each other are provided to the 1st and 2nd electrode elements 11, 12. In this case, the structure is a single electrode and the sum of the finger width G1 of the electrode finger 13 and the finger width G2 of the electrode finger 14 is selected to be a half the wavelength lambda of a surface acoustic wave. Then the ratio of the part with a pattern and the part without of it is 1:1, but the widths G1, G2 of the electrode fingers 13, 14 in pairs are differentiated. Thus, the exciting efficiency of a surface acoustic wave SAW is lowered in comparison with 1:1 and weighting is applied by using the dependency of the exciting efficiency on the width ratio and the weighting with a degree of freedom is attained and the deterioration in the characteristic diffraction effect is prevented.
Patent JP-H07108524-A (JP)
Title: Drilling machine for hard material drilling and diagnosis
Inventor: TSUJIMOTO MASAHARU
IPC: E04G23/08
Filed: 1993-10-15
Abstract: PURPOSE:To provide a drilling machine for hard material drilling and diagnosis which can conduct perpendicular drilling for the prescribed part of a drilled member, and sample the material of the drilled member at prescribed depth. CONSTITUTION:This drilling machine is provided with a drill 2 for hard material drilling equipped with a water passing hole which is drilled along the axial center of a rod-shaped body and is open at its top end part, and a diamond bit 21, a rotating drive part which is connected with the drill and drives its rotation, a water charging means 4 which charges water into the water passing hole of the drill with a no-seal structure, a guide body 61 which is brought into contact with the drilled member and in which a drill inserted hole 64a and a discharge hole 61b are drilled, a guide rod which is mounted, standing from the guide body 61, parallel to the drill 2, and passes through a drill machine body A so that it may slide smoothly, a sucking means which is connected to the discharge hole 61b of the guide body 61 through a discharge flow passage 6A, and a filter means 6F which is removably-provided in the discharge flow passage 6A and filters cutting chips at the time of drilling.
Patent JP-H10120352-A (JP)
Title: Operation device of wheelchair escalator
Inventor: OHIRA SHINICHI
IPC: B66B29/00
Filed: 1996-10-24
Abstract: PROBLEM TO BE SOLVED: To make a wheelchair user so as to be completely conveyable even in case of power failure due to an earthquake by making an induction motor connected to an inverter into a Y connection at the time of power failure, holding down a current in the motor, and capacitating an escalator for its operation by means of a storage battery even in time of the power failure. SOLUTION: When an earthquake of low GaL has occurred during wheelchair driving, a magnetic contactor is de-energized by a low GaL seismoscope, and a high GaL earthquake has occurred, by a high GaL seismoscope, respectively and thereby ac power sources R, S and T are stopped in power supply. Then an outage magnetic contactor is de-energized, closing a contact point 13g, and dc power of a battery 10 is converted into an alternating current by an inverter 9 and it is fed to an electric motor 7. At this time, three contact points 13a to 13c are opened and three contact points 13d to 13f are closed instead, thereby making the motor into a Y connection, and when a motor current is held down, the inverter 9 starts an escalator. With this, a wheelchair user is easily conveyable to a refuge floor even during the power outage.
Patent JP-2000110416-A (JP)
Title: Safety door pull for sliding door
Inventor: SEKI TAKAYUKI
IPC: E05B1/06
Filed: 1998-10-05
Abstract: PROBLEM TO BE SOLVED: To prevent a finger tip touched a door pull from being caught into it. SOLUTION: A safety door pull for sliding door 11 is formed by fitting a plugging member 15 of channel-shape cross section to one recessed part space of two recessed part spaces provided in a door pull main body 12 so that it can be moved forward and backward freely, and fitting a drive member 17 forming a pressed-in surface 16 in the other space 14 so that it can be pressed in freely so as to connect the plugging member 15 and the drive member 17 together through an oscillating mechanism.
Patent JP-H01124427-A (JP)
Title: Cool-keeping pot
Inventor: INOUE TAKASHI
IPC: A47J41/00
Filed: 1987-11-09
Abstract: PURPOSE: To obtain a lightweight cold keeping pot high in internal vol. ratio and strong against an impact by providing a magnet material and a superconductive material in opposed relationship and using the heat insulating effect due to the space with the magnet material due to the Melssner effect of the superconductive material. CONSTITUTION: An inner container 2 composed of a magnet material is put in an outer container 1 composed of a superconductive material and a clamp jig 5 is put in the container 1 to form a uniform air layer 3 between the inner and outer containers 2, 1 naturally by the Meissner effect of the superconductive material of the outer container 1. Since the inner container 2 is pressed by the clamp jig 5, it is prevented from flying out. The magnetism of the inner container 2 is shielded by the outer container 1 and no metal is attached toy the periphery of the outer container. Therefore, a cold keeping pot extremely easy in assembling, strong against an impact, light in wt. and characterized by that the ratio of the internal vol. to the total vol. of the pot is sufficient large can be realized.
Patent JP-H0949505-A (JP)
Title: Rotary actuator
Inventor: TAKEUCHI TERUMASA
IPC: H02K49/10
Filed: 1995-10-03
Abstract: PROBLEM TO BE SOLVED: To provide a rotary actuator capable of rotating stably with large torque and little torque variation and utilizing a magnetic screw. SOLUTION: A piston 17 has a female magnetic screw 15 formed parallel to the sliding direction and having a spiral magnetized band on the inner circumferential, a circumferential groove 17a formed of the inner circumferential of the piston 17 and the female magnetic screw 15 and an O-ring 18 provided in the circumferential groove 17a on the inner periphery of the piston 17. A rod 12 is rotatably attached to the female magnetic screw 15, while having a male magnetic screw 14 having a spiral magnetized band on the outer periphery. End covers 21, 22 extendedly enter the circumferential groove 17a of the piston 17, and have seal guides 21a, 22a abutting against the O-ring 18 so that the male magnetic screw 14 receives magnetism from the female magnetic screw 15 by the slide of the piston 17 to rotate the rod 12.
Patent JP-H04157317-A (JP)
Title: Absolute encoder
Inventor: KOBAYASHI HIROSHI
IPC: G01D5/249
Filed: 1990-10-19
Abstract: PURPOSE:To make an encoder small and compact in size by providing pairs of a light source and a photoelectric converting element of the same number as the tracks in a manner to confront each other in the peripheral surface of a scale and spirally around a cylindrical shaft of tire scale. CONSTITUTION:A code pattern 3 is formed in a shaft 5 to be used as a scale, which is formed of a plurality of tracks. Moreover, a plurality of light sources 7 and photoelectric converting elements 8 are provided to confront, each other in the peripheral surface of the scale with the pattern 3 and spirally around the cylindrical shaft of the scale. The light source 7 pairs with the confronting element 8. A light projected from an optional light source 7 is cast to the confronting track, and the reflecting light is modulated by the change of the reflectivity of the grating pattern of the tracks. The intensity of the modulated reflecting light is photoelectrically converted by the element 8 pairing with the light, source 7. Accordingly, a bit signal corresponding to the track can be obtained.
Patent JP-H05118149-A (JP)
Title: Wave making pool
Inventor: TATSUMI TOSHIYUKI
IPC: E04H4/00
Filed: 1991-10-29
Abstract: PURPOSE:To improve the extent of performance in use of a site and a space as well as to aim at the promotion of efficiency in maintenance by adjoining a drop type large wave making device and an air type small wave making device to the periphery of a pool, and generating both large and small waves from a common wave outlet optionally. CONSTITUTION:A large wave making device 1 and a small wave making device 2 are adjoined to each other at the pool side of a wave outlet E installed in the inner part of a conduit after being formed in a bulb form, by way of example. Next, when a large wave is made up, a small wave blower 32 is stopped, opening an exhaust hole instead, and a feed hole and a water gate 52 are closed. Here a gate valve 12 in a water storage tank 5 is closed, collecting a specified amount of water through a storage pump 8, and a cylinder 18 of the large wave marking device 1 is operated. In succession, the gate valve is opened, and water is discharged into a water chamber from the water storage tank 5, making the water flow into a pool at a sroke. When a small wave is made up in succession, the gate valve 12 is closed, opening the water gate 52 instead, and water in an air chamber 28 is pressed by means of compressed air, thereby extruding this water into the pool from an interconnecting hole 27. In this connection, the small wave may be continuously formed by means of repeating the changeover in a periodic manner.
Patent JP-H08121991-A (JP)
Title: High anti-corrosion type corrugated pipe
Inventor: HONCHI MASAHIRO
IPC: F28F1/08
Filed: 1994-10-21
Abstract: PURPOSE: To provide a pipe having a high anti-corrosion against sea water and having a superior heat transfer characteristic. CONSTITUTION: High Cr ferrite stainless steel containing Cr of 25% or more and C+N limited to a value of 150ppm or less is applied as a raw material for pipe. The pipe is worked to have a corrugation. High anti-corrosion can be attained by high Cr, a cold machining work is improved under a limitation of C+N, resulting in that a corrugate machining can be attained.
Patent JP-H09122376-A (JP)
Title: Washing and dewatering machine
Inventor: TOZAKI SO
IPC: D06F33/02
Filed: 1995-10-31
Abstract: PROBLEM TO BE SOLVED: To prevent generation of abnormal vibration and noises and to improve dewatering efficiency, by starting dewatering at a high level of residual water in the rotary tub when washing amount is much and at a low level when little in performing from draining to dewatering. SOLUTION: For controlling a sequence from draining to dewatering by a control circuit, whether the sequence is after rinsing or not is judged at first, and, when the answer is 'YES', the level of dewatering start is set according to the amount of washing judged at the initial period of washing. That is, a higher water level A1 is set when the washing amount is 'MUCH', a medium level A2 when 'STANDARD', and a lower level A3 when 'LITTLE' respectively. At second, a drainage valve 9 is opened to drain water in a rotary tub 4 through a main drainage path 11, and when the residual water level is detected to be a level lower than a prescribed level, dewatering is started. At that time, washing is uniformly displaced toward periphery parts to suppress generation of imbalance.
Patent JP-2001106679-A (JP)
Title: Method for vapor phase oxidation
Inventor: KAKIMOTO YUKIHIKO
IPC: C07D301/10
Filed: 1999-10-04
Abstract: PROBLEM TO BE SOLVED: To provide a method for vapor phase oxidation comprising conducting an exothermic reaction using a shell-and-tube type reactor for e.g. producing ethylene oxide by vapor phase oxidation of ethylene through suppressing the formation of by-products such as aldehydes as impurities to a minimum so as to enable the objective high-purity oxidation product of low impurity content to be obtained. SOLUTION: This method for vapor phase oxidation comprises conducting a vapor phase oxidation reaction in the presence of an oxidation catalyst using a shell-and-tube type reactor; wherein a space is provided on the reaction gas outlet side of each of the reaction tubes.
Patent JP-H07138281-A (JP)
Title: Lithium salt of taste-relating substance and its use
Inventor: SHIMIZU CHUICHI
IPC: A61K31/7052
Filed: 1993-11-12
Abstract: PURPOSE:To obtain a lithium salt which is a lithium salt of a taste-relating substance, 5'-inosinic acid, has hypotensive action of high safety with reduced side effect and can be used as an effective hypotensor in the forms of oral, injection and drip phleboclytic preparations. CONSTITUTION:Triethyl phosphate is allowed to react with phosphorus oxychloride under stirring, the reaction mixture is cooled down to 5 deg.C and dripped in water, then inosinic acid is added to effect phosphorylation. The reaction mixture is poured in water at 0 deg.C to continue the reaction at 5 deg.C for 1 hour, then extracted with toluene. Then, the solvent is removed from the extract to collect the residue. The residue is passed through the activated carbon column treated with lithium hydroxide and hydrochloric acid, eluted with 3.5% lithium hydroxide, the eluate is concentrated at 60 deg.C, then cooled down to 25 deg.C to precipitate crystals whereby new lithium 5'-inosinate is obtained. The compound is formulated with alpha-form starch, corn starch and magnesium stearate into a hypotensive preparation of low toxicity with no side effect.