baber/WOPTO huggingface dataset:
Patent JP-H08103036-A (JP)
Title: Apparatus to cope with instantaneous voltage drop
Inventor: IWASAKI TOSHIYASU
IPC: H02M7/48
Filed: 1994-09-30
Abstract: PURPOSE: To enable compensating operation of an inverter and eliminate control failure due to the false detection of load current, by providing a re-arc- extinguishing circuit that supplies arc-extinguishing pulses of the polarity opposite to a latched polarity from the inverter to a thyristor bypass switch again when the overcurrent in inverter output is detected. CONSTITUTION: An inverter overcurrent detecting circuit 8 judges whether there is overcurrent in an inverter 3. If an inverter overcurrent is detected, the present polarity of load current iL, judged by a current transformer CT, is latched into a latch circuit 11, and a thyristor is subjected to re-arc extinguishing with arc-extinguishing pulses of the polarity opposite to the latched polarity. Thereafter, it is judged whether the overcurrent detection by the inverter overcurrent detecting circuit 8 has ceased. If no overcurrent is thereby detected, it is started to supply the inverter 3 with a compensation voltage according to the command from a voltage detecting circuit 7. This maintains a rated load voltage by means of compensation voltage through an injection transformer 4.
Patent JP-S6296878-A (JP)
Title: Sonic wave propagation simulating system
Inventor: OTSUBO HISAYASU
IPC: G06F19/00
Filed: 1985-10-24
Abstract: PURPOSE:To simplify system constitution, by calculating the amplitude value of depth function corresponding to the sample value of a sound ray parameter as a product of lower-order functions of phase differential values from a turning point to a sound source or the depth of a wave receiving point to perform the calculation of a sound field according to the calculated amplitude value having function dependency. CONSTITUTION:Functional approximation is applied to a sonic velocity profile on the basis of the input of an environmental condition from an input terminal 1 and predetermined calculation is performed not only to calculate the surface-of-sea/bottom-of-sea loss characteristics and attenuation characteristic of a sonic wave but also to determine the sonic velocity of a sound source or at the depth of a wave receiving point. The sample valve of a sound ray parameter is determined by a sound ray parameter generating means 3 inputting the sonic velocity profile and sound source/wave receiving point depth informations from the means 2 to be applied to a fundamental route calculation means 4 and a sonic field calculation means 6. Then, the amplitude pattern of depth function corresponding to the sample value of the sound ray parameter is calculated as a product of lower-order functions of phase differential values from a turning point to the sound source/wave receiving point depth by a depth function calculation means 5 and a sound field is calculated according to the amplitude value by a sound field calculation means 7.
Patent JP-S6390876-A (JP)
Title: Drive circuit for semiconductor laser
Inventor: KAWASHIMA SEIICHIROU
IPC: H01S5/068
Filed: 1986-10-03
Abstract: PURPOSE:To enable a stable laser output to be obtained by providing an automatic output control means tor controlling the driving current of a semiconductor laser upon receipt of part of a laser light, and a resistor connected in parallel with the semiconductor laser and having a positive resistance temperature coefficient, thereby compensating the temperature change of the differential quantum etticiency to prevent the degradation of the extinction ratio. CONSTITUTION:There are provided an automatic output control circuit 4 for controlling the driving current of a semiconductor laser 1 upon receipt of part of the laser light emitted by the semiconductor laser 1, and a resistor 20 connected in parallel with the semiconductor laser 1 and having a positive resistance temperature coefficient. For instance, a ditterential amplifier 2, a phot diode 3 and the automatic output control circuit (APC circuit) 4 are provided and an automatic output control means is constructed with the photo diode 3 and the APC circuit 4, and further, the resistor 20 having a positive resistance temperature coefficient is connected in parallel with the semiconductor laser 1. With this, the driving current supplied to the semiconductor laser is adjusted by the resistor 20, so the output light deviation due to the temperature change of the differential quantum efficiency of the semiconductor laser is compensated to prevent the degradation of the extinction ratio, thereby obtaining a stable laser output.
Patent JP-S60127832-A (JP)
Title: Receiver
Inventor: IWAHASHI KOUJI
IPC: H04B17/00
Filed: 1983-12-15
Abstract: PURPOSE:To attain ease of the adjustment of a detection start electric field and a detection voltage sensitivity by outputting a voltage having a prescribed logarithmic characteristic to an input electric field level of a wide range. CONSTITUTION:A signal from an input terminal 13 is amplified and outputted by an intermediate amplifier 7, the signal from input/output terminals 13, 14 is rectified and added by the 1st and 2nd rectifier circuits 30, 31 and outputted from an output terminal 15. Since the negative terminal 32 of the 1st rectifier circuit 30 is connected to earth in order to take the level of the terminal 32 as a reference potential and the negative terminal 34 of the 2nd rectifier circuit 31 is connected to the positive terminal 33 of the 1st rectifier circuit 30, a sum voltage appears between the positive terminal 35 and the negative terminal 32. Thus, when no input is given to the input terminal 13, the potential of the terminal 35 reaches the ground potential and as the intermediate frequency to the input terminal 13 increases, the potential at the terminal 35 is increased.
Patent JP-H0285618-A (JP)
Title: Blast path of outdoor combustion heater
Inventor: FUKUNO KATSUYA
IPC: F24D5/00
Filed: 1988-09-21
Abstract: PURPOSE:To make a heat insulation material unnecessary by simplifying boring work into an outer wall, by a method wherein a blast path of an outdoor combustion heater is made into constitution where a suction side blast path and blowoff side blast path are arranged in a state of concentric double pipe. CONSTITUTION:Warm air is blown off outdoors through a blowoff port 6b of an indoor unit 6 by passing through a blowoff side blast path 7b from an outlet side of a heat exchanger 3 of a chamber 8. Then a suction side blast path 7a is arranged outside of the blowoff side blase path 7b where the warm air passes through and low-temperature air from an indoor side passes through the blast path 7a. With this construction, it is good to provide a sound absorbing material on the blast paths 7a, 7b or the blast path 7a at need without winding a heat insulation material or making use of the same serving as the sound absorbing material. Then since the blast paths 7a, 7b can be passed through an outer wall 9 by boring a hole into a spot of the outer wall 9, boring work is simplified as compared with a traditional matter where it is necessary to bore holes into two spots of the outer wall.
Patent JP-H03100570-A (JP)
Title: Image recording device
Inventor: FUKUMOTO FUMIO
IPC: G03G15/04
Filed: 1989-09-14
Abstract: PURPOSE:To obtain a good image without any image defect by finding deviation amount of image beforehand at the image recording and carrying out recording after compensating the deviation based on that deviation amount. CONSTITUTION:A preliminary scanning is carried out on the image to be project ed, the position of the image is detected by a sensor 33b, and from the detected result, deviation amounts X1 and Y1 with a proper position projected at a time of copying in a direction X and a direction Y are found, and a light axis shifting optical element 16 is rotated by an angle theta1 responding to the deviation amount Y1 in the direction Y. Then, main scanning is carried out, a latent image is formed on a photosensitive body drum 31, developing process is carried out, and activating timing of a timing roll 38 is proceeded or delayed only for the feeding time of a copying paper equivalent to a total value of the devia tion amount X1 in the direction X of the image found earlier and a deviation X2 in the direction X generated by rotating the light axis shifting optical ele ment 16. Thus, even when deviation is generated in the position of the image of a micro film 13, etc., up and down or right and left, it can be recorded in the center of the copying paper.
Patent JP-S6478693-A (JP)
Title: Manufacture of aluminum alloy cylinder block
Inventor: YAMAMOTO YOSHIFUMI
IPC: B23K26/21
Filed: 1987-09-21
Abstract: PURPOSE:To rationalize the welding quality and stage of piece materials by inserting Al material pieces in a water jacket opening part and forming a laser beam welding completion part of the pieces to the water jacket wall surface on the piece side. CONSTITUTION:The plural Al material pieces 7 are inserted in the opening end of the water jacket 6 of a cylinder block 1. Next, high energy beam welding is performed along joining parts (point B from point A) of the upper end face 2a edge part of a cylinder part 2 to the pieces 7. At this time, the laser beam irradiation does not stop at the position (point B) of the weld zone end and the irradiation is carried out continuously up to the inside (point C) of the pieces 7. By this method, a crater of the welding completion part is produced on the position (point C) inside the pieces 7. The crater is prevented from being produced on the liner periphery and the welding quality of the pieces 7 is improved. The need of crater processing is eliminated, so the stage is rationalized.
Patent JP-H10306047-A (JP)
Title: Production of 1,6-hexanediol
Inventor: HARA YOSHINORI
IPC: C07B61/00
Filed: 1997-09-02
Abstract: PROBLEM TO BE SOLVED: To enable to produce the 1,6-hexanediol by directly hydrogenating adipic acid, hydroxycaproic acid or caprolactone in the presence of a specific catalyst in relative mild conditions. SOLUTION: This method for producing 1,6-hexanediol comprises hydrogenating a compound selected from adipic acid, hydroxycaproic acid and caprolactone in the presence of a catalyst containing Ru and Sn in a liquid phase. The coexistence of a Pt component in addition to the Ru and Sn components in the catalyst is preferable because of improving the catalytic activity. The catalyst is preferably used as a carrier type catalyst produced by carrying the active components on a porous carrier. The porous carrier is preferably activated carbon. The hydrogenation reaction is preferably carried out in the presence of the catalyst in an amount of 0.1-100 pts.wt. per 100 pts.wt. of the reaction raw material such as adipic acid at 100-250 deg.C at 1-25 MPa. When used, the solvent is preferably water.  Examples of the raw material include a raw material recovered from the oxidation reaction solution of cyclohexane.
Patent JP-S6393984-A (JP)
Inventor: OKADA TAKAO
IPC: E06B7/18
Filed: 1986-10-07
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H08100072-A (JP)
Title: Polyimide film and laminate
Inventor: INOUE HIROSHI
IPC: B32B27/34
Filed: 1994-09-30
Abstract: PURPOSE: To prepare a polyimide film excellent in dimensional accuracy in various steps of processing, capable of highly accurately transferring characters and reflection of light, and excellent in heat resistance, by making a polymer of a specific acid component and a specific amine component to cause the polymer to have prescribed properties. CONSTITUTION: A polymer is made of an aromatic tetracarboxylic acid component (e.g. 3,3',4,4'-biphenyltetracarboxylic acid dianhydride), preferably comprising 30mol% or more biphenyltetracarboxylic acid component, and an aromatic diamine component (e.g. p-phenylenediamine), preferably comprising 50mol% phenylenediamine, the content of P element in all the film is to be 5 to 500ppm, the Ra of the film surface is to be at least 0.6nm or less, and the tensile modulus is to be 400kg/mm<2> or more.
Patent JP-S61117362-A (JP)
Inventor: NISHIO KAZUNORI
IPC: E04F15/06
Filed: 1984-11-09
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H08103029-A (JP)
Title: Battery pack, charger and charging adapter
Inventor: EGUCHI YASUHITO
IPC: H02J7/00
Filed: 1994-09-30
Abstract: PURPOSE: To shorten precharging period by turning off FET and passing charging current through a parasitic diode when the secondary battery is not in a discharging condition or is in a charging condition, by using a control means. CONSTITUTION: When discharging is stopped and a charger 102 is connected, both of FET3 and FET4 are ON, so that charging current runs through the FET3 and FET4. Therefore, FET3 is kept OFF, by which charging current runs through a parasitic diode 3A. The terminal voltage of a battery pack is higher than that of a conventional type by 0.7V which is the voltage drop of the parasitic diode 3A, so after starting charging, the terminal voltage rises immediately to 5.8V which is necessary voltage to assure the operation of a camcoder 103. It is thus possible to shorten precharging period.
Patent JP-H1083525-A (JP)
Title: Thin film magnetic head and wafer for thin film magnetic head
Inventor: ISO YOSHIYUKI
IPC: G11B5/39
Filed: 1996-09-09
Abstract: PROBLEM TO BE SOLVED: To shorten measuring time without increasing number of probe pins in measurement of electric characteristics of a thin film magnetic head on a wafer for a thin film magnetic head by providing terminals for connecting with a magnetic disk device on at least two surfaces of a head slider element surface and a slider rear surface. SOLUTION: The terminals 15 for connecting with the magnetic disk device are formed on at least two surfaces of the element surface 12 side of the thin film magnetic head 11 and a surface 14 opposite to a magnetic recording medium facing surface 13. Further, pulling terminals having less number of terminals are provided from connecting terminals of element surface sides of respective heads on the wafer for the thin film magnetic head. For example, when (n) pieces of composite heads having four pulling terminals on one head are arranged in a row on the wafer, number of pulling terminals in a row is 4n. Number of pulling terminals is reduced to 2n+1 by prescribed connections and thereby number of shifting at the time of measuring can be reduced.
Patent JP-H0285825-A (JP)
Title: Electro-optical device
Inventor: SONEHARA TOMIO
IPC: G02F1/055
Filed: 1988-09-22
Abstract: PURPOSE:To realize the electro-optical device which is addressable by both optical and electric inputs and can execute simply a retouch and a correction by a light or an electric signal by driving the same electro-optical medium by a substrate having a photoconductive layer and a substrate having a matrix picture element. CONSTITUTION:In a first substrate 101, an electrode 103 is installed on a substrate 102 and a photoconductive layer 104 is formed thereon. In a second substrate 106, a matrix picture element 107 is formed, it is connected to a TFT 108 selected by an X wiring 110 and a Y wiring 111, and a liquid crystal 109 is inserted and held between both the substrates 101, 106. In the case of an electric input, the whole surface is irradiated by a writing light, a photoconductive layer 104 is converted to a low impedance and the TFT 108 is addressed by the X - Y wiring. In the case of an optical input, a constant voltage is applied to the X wiring and the Y wiring, the surface is irradiated with an optical pattern to be written, the voltage applied to the picture element 107 is varied by a light beam, and the optical pattern is written.
Patent JP-H0286483-A (JP)
Title: Printer
Inventor: YOSHIMURA HIDEAKI
IPC: B41J19/20
Filed: 1988-09-22
Abstract: PURPOSE:To enable an appropriate tensile force to be applied to a timing belt by providing an elastic member for energizing a timing pulley plate in the direction for pulling the timing belt between the timing pulley belt and a chassis, and providing a fastening member for fixing the pulley plate and the chassis relative to each other. CONSTITUTION:In the condition where a timing pulley plate 23 is brought close to a motor, a timing belt is passed round a timing pulley 20. Thereafter, the timing pulley plate 23 is released, upon which the plate 23 is pulled by a tensile force of a spring 25, and is maintained in the condition where an appropriate tension is applied to the timing belt. Then, a screw 24 is fitted into a slot 23a of the plate 23, and the plate 23 is attached to a chassis 22. The tension of the timing belt can be set at a desired value by appropriately selecting the spring constant of the spring 25.
Patent JP-S62100545-A (JP)
Title: Flame-retardant polyolefin composition
Inventor: TANAKA YOSABURO
IPC: C08L7/00
Filed: 1985-10-25
Abstract: PURPOSE:The titled composition having improved compatibility, dispersibility and transparency, obtained by blending a polyolefin resin with two or more halogen-containing aromatic flame-retardants having specific different structures. CONSTITUTION:100pts.wt. polyolefin resin (e.g., polyethylene, etc.,) is blended with 1-50pts.wt., preferably 1.5-10pts.wt. total amounts of (A) one or more compounds (e.g., tetrabromobisphenol A or -S bromoethyl ether, etc.,) shown by formula I (R1 and R3 are H, 1-4C alkyl, etc.,; R2 is 1-4C alkylene or sulfide; X is halogen; l and n are 1-3) and (B) a compound [e.g., bis(pentabromophenoxy)ethane, etc.,] shown by formula II(R is oxygen or alkyldioxy; X is halogen; n is O or 3-5) in a weight ratio of the component A/B of 3/1-1/10, preferably 2/1-1/5.
Patent JP-H03103327-A (JP)
Title: Transportation of ferric chloride solution having high concentration
Inventor: KUBOYAMA JUN
IPC: C01G49/10
Filed: 1989-09-13
Abstract: PURPOSE:To transport a concentrated ferric chloride solution for the etching of TV shadow mask without using a heating and heat-insulation means or a large-scale concentration apparatus by transporting crystals precipitated by the cooling of a ferric chloride solution and dissolving the crystal in warm water at the destination. CONSTITUTION:The solution to be used as the starting material for the present process has a concentration giving a mixture of FeCl3.H2O crystal and FeCl3 solution by cooling, i.e., a concentration falling within the range between the dotted line (a) and the curve (b), preferably >44%. The solution is cooled and the precipitated crystal is separated by centrifugal separation, etc. The crystal is transported to a user demanding a high-concentration solution and dissolved at the destination in warm water heated at a temperature sufficiently high to enable the complete dissolution of the crystal. The objective FeCl3 solution having prescribed high concentration can be produced by this process.
Patent JP-H0289997-A (JP)
Title: Heat transfer tube for evaporation and condensation
Inventor: YOSHIDA TAKAYUKI
IPC: F28F1/40
Filed: 1988-09-22
Abstract: PURPOSE:To permit the improvement of evaporation heat and condensation heat transfer characteristics simultaneously by one piece of heat transfer tube for a heat exchanger as well as the mass-production property by a method wherein a plurality of grooves is formed by rolling on the surface of the inner wall of the tube and deposited metal is adhered to projections between the grooves by electroplating. CONSTITUTION:Deposited metal 4, deposited by electroplating, cavities 5, whose inlet port is narrowed, are formed continuously in the lengthwise direction of a heat transfer tube 1 along previously rolled grooves 2 and crests 3. Evaporation heat transfer characteristic may become very excellent since foaming may be promoted same as a tube so far from places whereat the cavities 5, whose inlet port is narrowed, are formed while heat transfer may be improved by the disturbing effect for refrigerant liquid around bubbles generated and separated from said places. The configurations of the deposited metal 4 are irregular and show projected and recessed configurations while the deposited metal 4 itself is porous in some case and, therefore, capillary force is generated and condensed liquid 6 in the grooves 2 is attracted to the deposited metal 4 whereby the thickness of the condensed liquid 6 may be thinned and the heat transfer characteristics of the tube 1 may be improved.
Patent JP-H04118301-A (JP)
Title: Resin wheel
Inventor: NISHIMURO YOICHI
IPC: B29L31/30
Filed: 1990-09-07
Abstract: PURPOSE:To obtain a lightweight resin wheel which possesses the superior mechanical characteristic such as impact strength, rigidity, heat resistance, and fatigueproofness, and also possesses the superior productivity, by integrally forming at least two divided shaped bodies each of which is independently shaped, and carrying out integration through screwing fitting. CONSTITUTION:A resin wheel is formed by integrally forming at least two divided shaped bodies, and after each divided shaped body is molded, integration fitting is performed through screwing. In this case, the quantity of the divided shaped bodies which constitute the resin wheel, division position, etc., are not restricted, and for example, the resin wheel 12 is constituted of the divided shaped bodies 12A, 12B, 12C, and 12D which are divided in a disc part 2 for a rim part 1. Further, the fitting at each fitting part (b), (c), (d) is finished by turning both the divided shaped bodies 12A and 12B in the reverse directions R1 and R2 around the rotary shaft of the resin wheel. Further a pair of male and female screws are formed commonly on the fitting surfaces of both the divided shaped bodies so that fitting can be carried out firmly through screwing.
Patent JP-H03100385-A (JP)
Title: Closed type electric motor-driven compressor
Inventor: YAHIKI JIYUNICHIROU
IPC: F04B39/00
Filed: 1989-09-13
Abstract: PURPOSE:To attempt the orientation to the lowness of noise by providing a valve plate having a suction hole, a cap communicating with the suction hole and with small space formed, a suction tube secured to a closed case, a gas communication material and a resonance muffler opened to the small space. CONSTITUTION:When an electric motor element 3 is started to be driven, a compressor element 4 starts compression with compressed gas delivered from a compressor 1 and returned to a suction tube 12 from a refrigerating cycle. The gas, with no opening in a closed case 2 by a gas communication material 13 further with heat insulated, is sucked to pass through a through hole 10 of a cylinder head and a suction hole 8 of a valve plate 9, and the gas of large density is guided in a cylinder 6. A part of gas compressed again generates a reverse flow in the direction of the hole 8 and becomes blow back gas, and is absorbed by a resonance muffler 15, when it reaches small space 18 of a cap 17, therefore a gas pulsation is damped before the gas communication material 13 with no generation abnormal noise in the refrigerating cycle.