baber/WOPTO huggingface dataset:
Patent JP-H0629611-A (JP)
Title: Surface light emitting semiconductor laser
Inventor: SUGIMOTO MITSUNORI
IPC: H01S5/00
Filed: 1991-12-12
Abstract: PURPOSE:To enable the electric resistance in DBR reflecting film base to be lowered without decreasing the differential quantum efficiency by increasing the impurity concentration in the part near the hetero junction with a multilayer GaAs/AlAs film to be brought into an inverse bias state. CONSTITUTION:The hetero junction 17 and the nearby part thereof having the forbidden band width Eg fluctuating from small value to large value from multilayer interferance reflection film 2 and 4 to respective active regions 3 out of GaAs/AlAs hetero junction are doped with Si and Be in high concentration. At this time, the doped hetero junction 17 in high concentration is to be inverse-biased in the state wherein the space between the electrodes 6 and 7 of the title surface beam emitting semiconductor laser is impressed with a DC voltage in the normal direction. Through these procedures, the part near the hetero junction 17 to be inverse-biased is doped with impurities in high concentration facilitating the current running for making the high resistance avoidable. Furthermore, the effect of beam absorption due to the free carrier in the high concentration doped region 18 can be suppressed to the minimum thereby enabling the deterioration in the differential quantum efficiency to be avoided.
Patent JP-H04203376-A (JP)
Title: Scroll compressor with pressure control
Inventor: SUEFUJI KAZUTAKA
IPC: F04C18/02
Filed: 1990-11-30
Abstract: PURPOSE:To provide a compressor of which use is convenient under an assurance of a difference of supplied hydraulic pressures by a method wherein as a differential pressure between a discharging pressure and a pressure of a back pressure chamber is judged to be lower than a limited value, an area of a suction passage is reduced and a suction pressure is lowered than a pressure at an outlet of an evaporator. CONSTITUTION:A controller 20 detects a differential pressure between a discharging pressure and a pressure in a back pressure chamber, i.e., an oil supplying pressure and when the oil supplying pressure is too low, it generates an instruction to make a slight closing of a metering valve 17. The instruction is sent to the metering valve 17 through a circuit 21 and the valve is slightly closed. As the metering valve 17 is slightly closed, an area of the suction passage is reduced, resulting in that a pressure loss between an inlet and an outlet of the valve 17 is increased and a sucking pressure at a compressor is lower than a pressure at an outlet of an evaporator of a freezing cycle. As the sucking pressure is decreased, the pressure in the back pressure chamber 12 is also decreased. As a result, the oil supplying pressure, i.e., a difference between the discharging pressure and the pressure in the back pressure chamber is larger than that of a condition in which the metering valve 17 is slightly closed In this way, the metering valve 17 is controlled and set in such a way as a differential pressure of supplying oil may not be lower than a certain limited value and then an amount of oil suitable for lubricating the bearing is supplied.
Patent JP-H09172359-A (JP)
Title: Gate circuit for voltage driven semiconductor switching element
Inventor: KIN HIRONOBU
IPC: H03K17/12
Filed: 1995-12-19
Abstract: PROBLEM TO BE SOLVED: To improve the current balance in a chip by connecting each gate resistor suitable for an on-characteristic and an off-characteristic of a voltage driven semiconductor switching element between a gate drive circuit and a gate terminal respectively. SOLUTION: The voltage drive semiconductor switching element IEGT (SD) is formed by containing plural chips ch1-chn in one package, connecting anodes, cathodes, gates of each chip in common respectively and leading out an anode terminal A, a cathode terminal K and a gate terminal G as external terminals. Then a gate resistor RP whose resistance is suitable for an on-characteristic of the IEGT (SD) is connected between a gate drive circuit 1 and the gate terminal G via a diode DP and a gate resistor RN whose resistance is suitable for an off-characteristic of the IEGT (SD) is connected between the gate drive circuit 1 and the gate terminal G via a diode DN. Thus, the IEGT(SD) is controlled by using the suitable resistor RP (RN) for the ON (OFF) state respectively.
Patent JP-H11156416-A (JP)
Title: Control method for rolling mill
Inventor: SUZUKI TAKENORI
IPC: B21B37/58
Filed: 1997-12-01
Abstract: PROBLEM TO BE SOLVED: To reduce an unrolling down length occurring when a strip with preceding steel strip and succeeding steel strip connected, passes through a skin pass mill. SOLUTION: When the connected part of the strip 2 with the preceding stainless steel strip and the succeeding stainless steel strip connected, passes through the skin pass mill 11, a threading speed change pattern 26 before and after the connected part passes through the mill, is found according to respective plate thicknesses. By using a found threading speed change pattern, a rolling load P1 to be set to the preceding stainless steel strip, the soft touch load P5 of a lower rolling roll 11b and a rolling load P9 to be set to the succeeding stainless steel strip, the decompression start timing and the pressure intensification start timing of the rolling rolls 11a, 11b, are determined so that the unrolling down length (S1 +...S8 ) in before and behind of the connected part, becomes small.
Patent JP-H08156537-A (JP)
Title: Road surface state estimating device
Inventor: KAWAI HIROYUKI
IPC: B60C23/00
Filed: 1994-12-08
Abstract: PURPOSE: To estimate the state of a road surface by the change of the air pressure of a tire accompanying a travel in a vehicle having a pneumatic pressure detecting device. CONSTITUTION: In a road surface state estimating device 10 for a vehicle having a pneumatic pressure detecting device 16 for detecting the pneumatic pressure of a tire, a tire pneumatic pressure Pe at a point of time after the lapse of a prescribed time from the traveling start of the vehicle is estimated from the tire pneumatic pressure Po at a point of time of the traveling start and an outside temperature T, and the state of the road surface is estimated on the basis of the comparison with the estimated tire pneumatic pressure Pe with the actual tire pneumatic pressure Pa after the lapse of the prescribed time from the traveling start.
Patent JP-H07186732-A (JP)
Title: Battery case structure of electric vehicle
Inventor: NAMIIRI ATSUSHI
IPC: H01M2/10
Filed: 1993-12-27
Abstract: PURPOSE:To provide an electric vehicle with a battery case structure of which rigidity is high, effect due to thermal expansion or the like can be reduced, and arrangement of harness can be safely performed. CONSTITUTION:A battery case 12 having a front battery case 13A and a general part 13B is installed on the upper part of a battery frame 1 arranged with a plurality of batteries. Diffusers 14 for introducing temperature-controlled wind are provided on the front part of the front battery case 13A. A pair of right and left through holes 18 for drawing harnes outside are provided on the center part in the vehicle width direction of the front battery case 13A, and the boundary part of both is formed into a spreading out shape. Extending over the whole front battery case 13A in the vehicle width direction, a lower rib is provided sandwiching the diffusers 14 with the upper rib 21. The front battery case 13A is fixed to the battery frame 1 setting the center part in the vehicle width direction as a fitting basis.
Patent JP-H03192444-A (JP)
Title: Address conversion circuit
Inventor: MASAKI TOMOAKI
IPC: G06F12/10
Filed: 1989-12-22
Abstract: PURPOSE:To smoothly execute an address setting processing for data transfer by respectively providing converting means to convert addresses designated from a CPU to the physical addresses of respective memories between the respective memory and an address bus. CONSTITUTION:Address conversion circuits 3a - 3c to be the address converting means are provided between respective memories 2a - 2c and an address bus AB. When a data transfer address or a data copy address is instructed from a CPU 1 through the address bus AB, the address conversion circuits 3a-3c convert the address to the physical addresses of the respective memories 2a-2c and corresponding to the converted address, data transfer or data copy is executed. Thus, in comparison with an address conversion processing by a software, address conversion processing speed can be accelerated and data transfer processing time or data copy processing time can be shortened.
Patent JP-2001151752-A (JP)
Title: Method for producing indolenine compound and oxonol dye
Inventor: YASUKAWA HIROYUKI
IPC: C09B23/08
Filed: 1999-11-22
Abstract: PROBLEM TO BE SOLVED: To provide a safe and convenient method excellent in manufacturing suitability and economical efficiency which enables an indolenine compound and an oxonol dye which are high in molecular extinction coefficient and purity and have a substituent having displaced methane chain in a high yield to be produced. SOLUTION: This method for producing the indolenine compound features employing a pyridinium compound represented by formula (I) (wherein X is a saturated or unsaturated heterocyclic group; Y1, Y2 and Y3 are each H or a substituent; Z- is an anion; and (m) is an integer necessary to neutralize electric charges in a molecule and is 0 in the case of an inner salt) and producing the indolenine compound represented by formula (II) (wherein two R1s, two R2s and two R3s are each H or a substituent; two Q1s are each nonmetal atomic group necessary to form a (substituted) aromatic ring or heterocondensed ring; W- is an anion; and (n) is 0 or 1 and in 0 when the dye forms an inner salt).
Patent JP-H09169225-A (JP)
Title: Running control device for vehicle
Inventor: OTANI JUNICHI
IPC: B60W30/00
Filed: 1995-12-20
Abstract: PROBLEM TO BE SOLVED: To prevent the sudden change of acceleration or deceleration due to the change of control mode by shifting a distance-between-vehicles mode to a constant speed mode via an acceleration/deceleration control mode. SOLUTION: An ECU 11 to which switches and sensors for detecting input driving state has a distance-between-vehicles mode which keeps the distance a vehicle and the one ahead at an aiming distance and a constant speed mode which keeps a vehicle speed at an aiming vehicle speed. The distance-between- vehicles control mode is shifted to the constant speed mode via an acceleration/ deceleration control mode: an aiming acceleration or deceleration is determined by product of a vehicle acceleration or deceleration and the rate of change of an aiming acceleration and the aiming acceleration or deceleration is corrected based on the deviation of an actual vehicle speed from a control speed calculated from the integral of the aiming acceleration or deceleration.  When the deviation of the absolute value between the actual acceleration or deceleration and the corrected aiming acceleration or deceleration is less than a specified value, the mode is shifted to the constant speed mode.
Patent JP-H11224487-A (JP)
Title: High density semiconductor memory in which row pre-charge time can be reduced
Inventor: LEE JUNG-HWA
IPC: G11C11/409
Filed: 1998-11-20
Abstract: PROBLEM TO BE SOLVED: To provide a semiconductor memory in which a row recharge time can be shortened. SOLUTION: This device is provided with at least two equalizing circuits 300, 320 for equalizing signal lines 310m, 310n for isolation transistors. The circuits 300, 320 simultaneously equalize the signal lines 310m, 310n for transmitting signals to control switch circuits 160 respectively corresponding to adjacent memory cell blocks 100m, 100n at the time of row pre-charge operation in accordance with each signal (for example, bit line equalizing signals PEQmB, PEQnB and switch insulation signals ISOm, ISOn).
Patent JP-H01171712-A (JP)
Title: Machine method and machining drill for fine hole
Inventor: MATSUSHITA HIDEO
IPC: B23P15/28
Filed: 1987-12-26
Abstract: PURPOSE:To enable cutting at the maximum cutting speed even with a fine diameter or with a hard cutting material by pushing a twist drill which has the specific ratio of cutting-edge diameter to length and in which a super adrasive grain powder with a specific mesh is fixed to the peripheral face of a cutting edge with a specific diameter, against a workpiece and rotating it for specific number of times. CONSTITUTION:A twist drill having the ratio of cutting-edge diameter to length at 1:1.6-1:13 and in which a super abrasive grain of 20-1000mesh is fixed to the peripheral face of a cutting edge 2 with a diameter below 3.0mm, is pressed against a workpiece and rotated at above 12000R/M. Since the twist drill 3 is thus formed by fixing the powder of a super adrasive grain 8 on the peripheral face of the cutting edge 2, at the time of carrying out the machining of a fine hole by pressingly rotating the drill 3 against a workpiece of a ceramic, etc., the discharge of chips and the circulation of a coolant are favorably carried out while chemically fixing the abrasive grains and a plated layer onto the uneven face of the drill. Hence, the abrasive grains can be fixed more firmly as compared to the conventional case in which merely a diamond powder is chemically bonded to a cylindrical base metal, thereby, enabling the abrasive grains to stand a higher cutting resistance, to enable the drill to carry out highly efficient machining.
Patent JP-H07187675-A (JP)
Title: Production of oxide superconductor
Inventor: IZAWA KAZUYUKI
IPC: H01L39/24
Filed: 1993-12-27
Abstract: PURPOSE:To provide a production method of an oxide superconductor capable of producing in large amount a Hg-based 1223 type oxide superconductor having >=90% volumetric efficiency and good in quality and having a single phase by simple method. CONSTITUTION:This method is constituted of a stage where oxide starting materials of metals constituting an oxide superconductor having a composition expressed by HgBa2Ca2Cu3O8+y are mixed so as to obtain the composition to produce a powdery mixture, a stage where this powdery mixture is formed to produce a formed body and a stage where this formed body is enclosed in a closed vessel and subjected to a heat treatment for at least 20 hours at a temp. causing a solid-state reaction to form the superconductor.
Patent JP-H05167742-A (JP)
Title: Call incoming circuit for charge collection type telephone set
Inventor: SUKAI NAOKI
IPC: H04M1/00
Filed: 1991-12-16
Abstract: PURPOSE:To surely detect the presence of an incoming call even when the telephone set is hooked off in a short time after the incoming call when a control section started by a DC power supply supplied from a station detects the incoming call from the station after the forming of a DC loop. CONSTITUTION:When a hook switch HS1 is closed through the off-hook operation initially after an incoming call signal sufficiently charges to a capacitor C3 storing information of the presence of the incoming call signal, a DC loop for incoming call reply comprising a line terminal L2, a changeover contact V1, a photo thyristor PS2, a speech circuit 8, a power supply circuit 9, a diode D3, and a line terminal L2 in this order is formed. After the loop is formed, a control section 12 discharges the charge in the capacitor and the presence of the incoming call is discriminated depending on the presence of a discharge current. Furthermore, after the capacitor C3 is sufficiently charged, a rectified output of the incoming call signal is impressed to a ringer circuit 15.
Patent JP-H01172194-A (JP)
Title: Flexible rigging chain and molding method thereof
Inventor: SUTEIIBUN II KENDOORU
IPC: B66C1/00
Filed: 1987-12-26
Abstract: PURPOSE: To enhance a weight to strength ratio of a chain by linking and coupling each loop in which a core part of nonmetal strand wound endlessly to a prescribed loop dimension is surrounded within a flexible outside casing in a non-fixed state. CONSTITUTION: A core 22 is composed by endlessly winding strand 24 made of synthetic resin materials of high tensile strength to weight such as polyester and nylon via a pin 50 erected on a side, being wound on sprockets 30, 32 through a link chain 34 and rotating, within a loop 7. Next, the surroundings of this core 22 are wrapped with a sheath 26 made of weight canvas or woven fabrics such as polyester and nylon, are stitched 28 and are link-coupled with each other as loops 7. This link coupling is repeated and a link-shaped loop lifting chain of a prescribed length is formed. Thus, a weight to strength ratio of the chain can be improved.
Patent JP-H03193836-A (JP)
Title: Titanium alloy having excellent corrosion resistance
Inventor: MITSUYOSHI YASUHIRO
IPC: C22C14/00
Filed: 1989-12-21
Abstract: PURPOSE:To manufacture the titanium alloy having excellent corrosion resistance by preparing a titanium alloy contg. specified ratios of Nb and Ru. CONSTITUTION:A titanium alloy having the compositional ratio of, by weight, 20 to 55% Nb, 0.05 to 2.0% Ru and the balance Ti with inevitable impurities is prepd. In this way, the titanium alloy showing excellent corrosion resistance in a nonoxidizing environment, particularly in high temp. high concn. hydrochloric acid and sulfuric acid, furthermore excellent in workability and free from maintenance cost can be obtd.
Patent JP-H08226992-A (JP)
Title: Method and device for improving residual stress in reactor structure
Inventor: ENOMOTO KUNIO
IPC: G21D1/00
Filed: 1995-12-20
Abstract: PURPOSE: To suppress the radioactive contamination of a pump supplying nozzle with water. CONSTITUTION: A nozzle 3 is connected to a high pressure hose 15 connected with a high pressure pump 14. The nozzle 3 is inserted in reactor water in a pressure vessel 33 filled with reactor water. Pure water is pressurized with a high pressure pump 14 and supplied to the nozzle 3 from outside by way of the high pressure hose 15. The flow of pure water discharged from the nozzle 3 and accompanied by cavity is impinged to the surface of reactor structures contacting reactor water. As the pure water is led to the nozzle 3 after pressurized by the high pressure pump 14, radioactive contamination of the high pressure pump 14 is suppressed. Therefore, the maintenance and inspection of the high pressure pump 14 is easily conducted.
Patent JP-H05165111-A (JP)
Title: Photographic printer and minilaboratory device
Inventor: KIMURA TSUTOMU
IPC: H04N1/38
Filed: 1991-12-16
Abstract: PURPOSE:To reduce the crosstalk of a color and to obtain an image with high saturation by using a photosensitive material sensitized to light other than visible light for at least two photosensitive layer and executing scanning and exposure by using three kinds of light sources whose wavelength regions are different. CONSTITUTION:Magnetic data recorded on the magentic recording layer of a negative film 10 is read by a magnetic head 15 while the film 10 is transported, converted to trimming information by a magnetic reading part 16 and sent to an image processing part 17. In the processing part 17, image data for exposing a color paper 26 provided with at least two layer structure which is sensitized to the light of the wavelength region other than the visible light is outputted. A color line printer 25 is provided with three kinds of infrared light emitting diodes and the paper 26 is scanned and exposed based on the image data from the processing part 17. In such a way, since the scanning and the exposure are executed by using three kinds of light sources whose wavelength regions are different and the paper 26 provided with the photosensitive layers corresponding to the respective light sources, the crosstalk of the color is reduced.
Patent JP-H07190735-A (JP)
Title: Optical measuring device and its measuring method
Inventor: ASAE TERUO
IPC: G01B11/30
Filed: 1993-12-27
Abstract: PURPOSE:To accurately measure each position for flaws or dents of a measured object by providing a spot light source other than a measuring laser beam source, irradiating spot light on the measured object, and thereby forming each reference point. CONSTITUTION:Sector shaped-filament laser beam 11 is irradiated over a measured object 100 from a laser beam source section 2, spot light 15 is concurrently irradiated from a spot light source section 3 in such a way as to be overlapped, and a cross mark acting as a reference point is thereby formed over the measured object 100. Reflecting light of measuring laser beam and reflecting light from the reference point are converged by a lens 43, and projected over a CCD camera section 41 so as to be measured. In this case, the light source section 3 is moved by a controller and an actuator in such a way that reflection light of spot light from the mark passes through the center section of the lens 43 at all times, so that the deformation of the mark is thereby reduced. A distance from the reference point over the measured object 100 to each target point (flaws, dents and the like) is detected by the camera section 41, so that each actual dimension is thereby operated.
Patent JP-H01174135-A (JP)
Title: Error detecting circuit
Inventor: KIRIYAMA TAKASHI
IPC: H03M13/00
Filed: 1987-12-28
Abstract: PURPOSE:To detect an error not detected by parity check by adding a simple hardware comprising an FF circuit, a subtractor, an absolute value converting circuit, a code comparator, an error permissible value output device and a comparator. CONSTITUTION:A code inputted to a reception terminal A is latched by an FF circuit 2 and a difference between the existing code from the reception terminal A and a preceding code being an output of the FF circuit 2 is obtained by a subtractor 3. Moreover, the sign of the existing code and the preceding code is compared by a sign comparator 4 and the allowable value of the sign error is outputted from an error permissible value output device 5 based on the said output. The output of the subtractor 3 is supplied to a comparator 6 via an absolute value converting circuit 1, compared with the output of the error permissible value output device 5 to detect whether or not the existing sign has an error.
Patent JP-H06181235-A (JP)
Title: Semiconductor device
Inventor: NODA HIROSHI
IPC: H01L23/50
Filed: 1992-12-14
Abstract: PURPOSE:To provide a semiconductor package capable of reducing the size of a semiconductor chip, capable of providing leads with high density, and capable of improving the signal transfer characteristic. CONSTITUTION:A plurality of pads 2 are formed on the surface of a semiconductor chip 1. And a plurality of leads 4, 5, and 6 are electrically connected corresponding to the pads 2 respectively. The leads 4, 5, and 6 are insulated from one another by insulating substances 7a and 7b, and are laminated in the direction of the height from the surface of the semiconductor chip 1.
Patent JP-H05140380-A (JP)
Title: Heat-resistant resin composition
Inventor: DOI TORU
IPC: C08L67/00
Filed: 1991-11-22
Abstract: PURPOSE:To provide the subject composition comprising a specific maleimide copolymer resin, a polyester, and an elastomer in a specified ratio, excellent in the rigidity, impact resistance and mechanical characteristics, and useful in the fields of automobiles, etc. CONSTITUTION:The objective composition comprises (A) 1-99wt.%, preferably 10-75wt.%, of a resin comprising 30-98mol.% of constituting units of formula I (R<1> is 1-18C alkyl, 3-12C cycloalkyl) and 70-2mol.% of constituting units of formula II (R<3>, R<4> are H, 1-8C alkyl),and having a weight-average mol.wt. of 1X10<3> to 5X10<6> converted into polystyrene, and (B) 1-99wt.%, preferably 25-90wt.%, of a polyester resin such as polybutylene terephthalate, and (C) 0-40wt.%, preferably 10-30wt.%, of polybutadiene.