baber/WOPTO huggingface dataset:
Patent JP-S5923930-A (JP)
Title: Reducing device of impulsive noise
Inventor: ISHIGAKI YUKINOBU
IPC: H04B1/10
Filed: 1982-07-30
Abstract: PURPOSE:To obtain an audio signal having good quality, by forming a compensating signal so as to interpolate a missing part of a signal during the period of impulsive noise, in audio equipment by an analog circuit with a simple circuit constitution. CONSTITUTION:An input audio signal outputted from a delay circuit 2 is applied to an input terminal 5a of a signal correcting circuit 5. An output signal S3 from the signal compensating circuit 5 is differentiated and a differentiated output signal S4 is applied to a sample-and-hold circuit 7. A control signal S2 generated at a control signal generating circuit CSG is used as a sampling pulse to the circuit 7. An output signal S5 from the circuit 7 is applied to a gate circuit 8. A signal S6 outputted from the gate circuit 8, i.e., the pulse S6 having ramp information of the desired signal during the period where impulsive noise in the input audio signal is produced is applied to a terminal 5d of the signal compensating circuit 5, then the circuit 5 forms a compensating signal so that the missing part of the signal produced during the period of mixing of impulsive noise in the input audio signal based on the signal S6 is interpolated linearly for performing linear interpolation of the signal with the compensating signal and transmits the signal S3 to an output terminal 9.
Patent JP-2000320663-A (JP)
Title: Control device for drive device
Inventor: TABATA ATSUSHI
IPC: B60W10/10
Filed: 1999-05-13
Abstract: PROBLEM TO BE SOLVED: To provide a control device to perform switch control of a plurality of clutches arrayed in series to each other on the output side of a power source without worsening a shock. SOLUTION: A control device for a drive device outputs a power, outputted from a power source, in order, through an input clutch and a transmission mechanism with a lockup clutch. This device comprises switch control detecting means (steps S2 and S4) to detect that switch control of either an input clutch or a lockup clutch is executed; and a switch prohibiting means (steps S3 and S5) to prohibit that switch control of one clutch is performed when it is detected by the switch control detecting means (S2 and S4) that the other clutch is under switch control.
Patent JP-H0249385-A (JP)
Title: Manufacture of electric connection member
Inventor: YOSHIZAWA TETSUO
IPC: H01L21/48
Filed: 1988-05-31
Abstract: PURPOSE:To make it possible to connect in a high density at numerous points and to improve the thermal property by connecting a circuit base with an electrical connection member. CONSTITUTION:In holders 111 which consist of an organic material, metallic members 107 are buried. One ends of the metallic members 107 are exposed at one side surfaces of the holders 111, and the other ends are exposed at the other side surfaces of the holders 111, to produce an electrical connection member 125. Then, at the connections 102 of a semiconductor element 101, the connections 102 are alloyed with the ends of the metallic members 107 exposed at one end surfaces of the holders 111 and connected. After that, at the connections 105 of a circuit base 104, the connections 105 are alloyed with the other ends of the metallic members 107 exposed at the other side surfaces of the holders 111 and connected. The connections 102 and the connections 108 of the member 125 are positioned so as to oppose the connections 105 and the connections 109 of the member 125.
Patent JP-S5772926-A (JP)
Title: Manufacture of pyrocatechol and hydroquinone
Inventor: KURISUTOFU YUUPE
IPC: C07C39/08
Filed: 1981-08-27
Abstract: A process for the preparation of pyrocatechol and hydroquinone by reaction of phenol with a peroxidic hydroxylating reagent followed by working-up of the resultant reaction mixture is disclosed. The work-up procedure is carried out in a first rectification column operated under specified conditions and having specified separation stages in a rectification section and a stripping section whereby there is distilled overhead components which boil at a temperature lower than phenol. Taken off from the bottom is a mixture comprising phenol and materials of higher boiling point which are fed into a second rectification column which is also operated under very specified conditions whereby pure phenol is recovered overhead leaving a bottoms comprising phenol pyrocatechol and hydroquinone which are then processed to separate phenol from a mixture of pyrocatechol and hydroquinone.
Patent JP-S61291560-A (JP)
Title: Formamidoxime derivative, production thereof and agricultural and horticultural germicide containing said derivative as active constituent
Inventor: TAKAHASHI JUNYA
IPC: C07C239/00
Filed: 1985-06-19
Abstract: NEW MATERIAL:A compound expressed by formula I [X is halogen, lower alkyl, lower haloalkyl, nitro, cyano, etc.; Y is expressed by formula IV (A and A' are 0 or S; R1 is lower alkyl, lower alkenyl, lower alkynyl, etc.) or formula V (R2 is lower alkyl), etc.; R is H, lower alkyl, lower alkenyl, etc.; R' is lower alkyl, lower alkenyl, lower cyanoalkyl, etc.]. EXAMPLE:N-( 3-Chloro-4-allyloxy-5-methoxycarbonylaminophenyl )-N'-methoxy formamidine. USE:An agricultural and horticultural germicide capable of exhibiting selective germicidal effect on plant pathogenic germs, etc., exhibiting resistance to cyclic imide based germicides. PREPARATION:A compound expressed by formula II (R'' is lower alkyl) is reacted with a compound expressed by formula III in an organic solvent, e.g. methanol or ethanol, to afford the aimed compound expressed by formula I.
Patent JP-S5358764-A (JP)
Title: Bonding method of flip chip
Inventor: KATAOKA MASAYUKI
IPC: H01L21/60
Filed: 1976-11-06
Abstract: PURPOSE: Assessment of non-defective and defective of flip chips is facilitated by transferring the flip chip to a pincette by rotating it 180°. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H09321286-A (JP)
Title: Control method for threshold voltage, of semiconductor device the semiconductor device, and manufacturing method
Inventor: ERIGUCHI KOUJI
IPC: H01L29/78
Filed: 1996-05-28
Abstract: PROBLEM TO BE SOLVED: To reduce a variation in threshold voltage of each MIS transistor in a manufacturing step for a semiconductor device. SOLUTION: A threshold voltage of an MIS transistor in a semiconductor wafer is monitored previously. The semiconductor wafer is put in a vacuum container, and a gas is fed in the vacuum container. A high frequency field is applied and the gas is ionized to generate plasma. The time or condition of plasma generation is adjusted and a charge is injected in a gate insulating film through a wiring of a semiconductor device to adjust the density of traps in the gate insulating film and obtain a desired threshold voltage of the MIS transistor under control. In this case, the distribution of variations in threshold voltage of the wafer related with the condition of plasma generation is stored and the control is carried out on the basis of the relation and the monitored result, so the threshold voltage in each MIS transistor is made uniform in the semiconductor wafer.
Patent JP-S5924495-A (JP)
Title: Bootstrap circuit
Inventor: SATOU TAKASHI
IPC: G11C11/34
Filed: 1982-08-02
Abstract: PURPOSE:To improve the efficiency of boosting, by installing an element which is controlled by a signal of a phase reverse to a delay pulse around an electrode at the delay pulse side and enlarging the pulse amplitude of another electrode of boosting capacity. CONSTITUTION:When the output pulse phiX of a pulse generating circuit phiX-G rises to a high level VCC, charging up is performed on a bootstrap capacity CB and a parasitic capacity Clb. Therefore, the node N of the electrode at the diffused layer side of the bootstrap capacity CB, which is the connecting point of both, is brought up to an intermediate voltage V1 in accordance with the capacity ratio of both capacities CB and Cb. When the delay signal phix' of a delay circuit D becomes a high level VCC, a voltage held by the bootstrap capacity CB is added to this voltage VCC and the selection level of a word line of a dynamic type RAM is formed at a high voltage. Therefore, delivery and reception of a writing/reading-out level against a memory cell can be performed without any level loss caused by the threshold voltage of the switching MOS FET of the memory cell.
Patent JP-S5562047-A (JP)
Title: Preparation of methacrylic acid ester
Inventor: MATSUMURA HIROSHI
IPC: C07C69/54
Filed: 1978-10-31
Abstract: PURPOSE:To prepare an ester of methacrylic acid, economically, without using distillation and flushing processes, by reacting methacrylic acid with a lower aliphatic alcohol under specific esterification conditions and extracting the alcohol under specific conditions. CONSTITUTION:1 Mole of methacrylic acid is reacted with 1.2-3.0 moles of a lower aliphatic alcohol (e.g. methyl alcohol, etc.) in liquid phase at 70-100 deg.C in the presence of an acidic solid catalyst, e.g. polystyrene-sulfonic acid-type cation exchange resins, etc. The reaction product is directly fed into an alcohol-extraction column maintained at 30-70 deg.C to separate the alcohol, and thereafter low boiling point materials are eliminated. Unreacted methacrylic acid is separated at a methacrylic acid ester-purification column and methacrylic acid is recycled to the esterification process. The elimination of the low boiling point materials is pref. carried out by taking the lower phase from the top condensate which is separated into two phases.
Patent JP-H10325644-A (JP)
Title: Heat exchanger and refrigerating cycle device
Inventor: OHATA YOZO
IPC: F24F1/00
Filed: 1997-05-23
Abstract: PROBLEM TO BE SOLVED: To reduce and prevent the formation of oil film on the internal surface of a heat exchanging tube to improve heat exchanging efficiency and reduce the staying amount of refrigerating machine oil in the heat exchanging tube by forming a groove, for conducting the refrigerating machine oil to flow therethrough, on the internal surface of the heat exchanging tube axially. SOLUTION: Heat exchange is effected between refrigerant 3 and air 4 by ventilating air 4 and the like through heat radiating fins on the outer surface of a coiled heat exchanging tube 2 while an oil groove 6 is formed on the inner bottom surface of the heat exchanging tube 2 axially along the whole length of the same tube. When the refrigerant 3, having a required pressure, is conducted to flow through the inside of the heat exchanging tube 2, refrigerating machine oil 5 in the refrigerant 3 adheres to the internal surface of the heat exchanging tube 2 and is dripped downward by the gravity of the same, then, flows into the oil groove 6 and flows axially by the pressure sending force of the refrigerant 3.  In this case, when the flow speed of the refrigerant 3, flowing through the inside of the heat exchanging tube 2, is high, the refrigerating machine oil 5 flows while being diffused whereby the refrigerating machine oil 5 flows into the oil groove 6 and flows axially even when the oil groove 6 is not provided on the inner bottom part of the heat exchanging tube 2. According to this method, oil film, formed on the internal surface of the heat exchanging tube, is reduced and prevented whereby heat exchanging efficiency can be improved.
Patent JP-S5757931-A (JP)
Title: Electromagnetic spring brake
Inventor: ISHIUCHI SUETOSHI
IPC: F16D65/18
Filed: 1980-09-26
Abstract: PURPOSE:To decrease weight of an electromagnetic spring brake, by using a braking coil spring partially as a magnetic flux circuit generated from voltage applied to an electromagnetic coil. CONSTITUTION:A coil spring 25 of square shaped section is interposed between a bottom part 13A of a cubic body 13 housing an electromagnetic coil and an armature 20. To stop driving motion of a rotary shaft when a power source circuit is opened, application of voltage is simultaneously suspended to the electromagnetic coil 1, then magnetic flux disappears to demagnetize the armature 20. Accordingly, the armature 20 strongly presses a friction plate 21 to a mounting plate 16 to block its racing.
Patent JP-S5258811-A (JP)
Title: Pulse motor driving circuit
Inventor: NOMURA KEIZOU
IPC: H02P8/14
Filed: 1975-11-10
Abstract: PURPOSE:To start and control a driving circuit smoothly by the provision of a function generator, an integrator, a discharging circuit and a mono-stable multivibrator, and by driving a pulse motor by the outputs of the monostable multivibrator.
Patent JP-2000318593-A (JP)
Title: Hydraulic booster
Inventor: KOBAYASHI MICHIO
IPC: B60T13/12
Filed: 1999-05-14
Abstract: PROBLEM TO BE SOLVED: To provide a hydraulic booster capable of further effectively shortening the whole length. SOLUTION: When an input shaft 8 moves forward, a cup seal 14 is positioned in front of a radial hole 7c, since a reaction chamber 11 is cut off from reservoir 17 and hermetically closed, hydraulic pressure is generated in the reaction camber 11. The hydraulic pressure in the reaction chamber 11 is introduced as control pressure into a control pressure chamber 29 via an axial hole 8b, a radial hole 8c, an annular space 5b, a radial hole 5c, an annular chamber 12 and a passage hole 4d and acts on the rear face of a control piston 22. The control piston 22 is thereby moved forward by this control pressure, and after a second valve seat 22a abuts on a conical valve 20a, the conical valve 20a is separated from a first valve seat 21a. Hydraulic pressure of a hydraulic pressure source is thereby introduced into a power chamber 18, and a power piston 7 moves forward, so that a hydraulic booster 2 is actuated for outputting. Since a control valve 19 is provided in parallel with the power piston 7, the length of the power piston 7 is shortened.
Patent JP-H11312132-A (JP)
Title: Communication method, parallel computer and communication method between client and server
Inventor: SONODA KOJI
IPC: G06F13/00
Filed: 1998-04-28
Abstract: PROBLEM TO BE SOLVED: To obtain a communication method, having generality to be utilized for the communication of various formats and enabling an application to change and optimize communication protocol processing, in accordance with a communication format. SOLUTION: In the processing of a communication protocol by a communication management part in an OS of a node (e.g., a node 101) in a parallel computer, a protocol processing function defined by a communication user out of a protocol processing function group 123 for executing communication protocol processing is registered in a communication terminal point (communication terminal point table 117), and if the protocol processing function defined by the user is registered in the communication terminal point at the time of communication, a part of communication protocol processing for processing the communication of the communication terminal point is executed by using the registered protocol processing function defined by the user.
Patent JP-H1045807-A (JP)
Title: Polymerization apparatus and its control
Inventor: FEURSTEIN MARKUS
IPC: B01J19/12
Filed: 1997-05-07
Abstract: PROBLEM TO BE SOLVED: To provide a polymerization apparatus capable of retaining the rapid polymerization of a material without producing an insufficiently polymerized material especially in the dental field, improving the operating efficiency and omitting the additional treatment of the material. SOLUTION: This polymerization apparatus 10 comprises light sources 12 and heat sources for a material 22 installed on a supporting board. In this case, a controller for controlling the polymerization apparatus 10 is provided therein. The light sources 12 are contained in a hood 14, which can be lifted from the supporting board 24 to release the material 22 when lifted. The material 22 to be polymerized can be irradiated with light from the light sources 12 and additionally heated in the method for controlling the polymerization apparatus 10. The feed of light and heat during the polymerization cycle is controlled with the controller and the light sources 12 are switched on simultaneously with the start of the polymerization cycle. The material 22 is heated for a prescribed heating time after switching on the light irradiation.
Patent JP-H0684398-A (JP)
Title: Semiconductor memory device
Inventor: KATANOSAKA TADAO
IPC: G11C11/401
Filed: 1992-05-27
Abstract: PURPOSE:To improve the inspection efficiency of a semiconductor memory device having many data output pins by providing newly an exclusive logic circuit (EX-NOR circuit) as a data comparison inspecting circuit. CONSTITUTION:At the time of readout, outputs from respective memory cells 1, 2 are fed to the EX-NOR circuit 17 as the data comparison inspecting circuit and logically operated. When two data are the same, '1' is outputted, when the data are not the same, '0' is outputted. Furthermore, when the output phiTO of the EX-NOR circuit is '1', a Q15 is set to ON and Q16 is set to 'OFF' and output DQ2 goes to a LOW level. When the output phiTO is '0', output DQ2 goes to a HIGH level. When the output DQ2 is '1', it is assumed that correct data from the memory cells are outputted since the same data are written in the memory cells 1, 2. When the output DQ2 is '0', it is understood that one of them is not correct. Thus, a data for two blocks are decided at the same time by the decision of the output of the DQ2.
Patent JP-H01304350-A (JP)
Title: Gas sensor
Inventor: OCHIWA SHINICHI
IPC: G01N27/12
Filed: 1988-06-01
Abstract: PURPOSE:To suppress the degradation in sensitivity by oxidation of a gas to be detected at a high temp. by forming a catalyst layer of a mixture composed of active alumina and tin oxide and adding a noble metal to the active alumina. CONSTITUTION:A pair of platinum electrodes 2, 3 are provided on one face of a sensor substrate 1 made of alumina 1 and a gas sensitive body 4 is provided across the electrodes 2, 3. The surface of the sensitive body 4 is coated with the oxidation catalyst layer 5 in order to prevent the erroneous alarm by alcohol vapor. Powder deposited with platinum on gamma-alumina is prepd. by impregnating an aq. chlorsplatinic acid soln. contg. 1wt.% platinum in gamma-alumina powder in order to form the above-mentioned catalyst layer 5. This platinum-added gamma-alumina powder and tin oxide powder are mixed and water is added to form paste. This paste is coated on the sensitive body 4 so as to coat the same. The oxidation catalyst layer is thus formed of the mixture composed of the active alumina and tin oxide, by which the degradation in the sensitivity by the oxidation of the gas to be detected at a high temp. is suppressed.
Patent JP-S61292376-A (JP)
Title: Zener diode
Inventor: NISHII MASAHARU
IPC: H01L29/866
Filed: 1985-06-20
Abstract: PURPOSE:To prevent the short circuit between the cathode region and the insular region of a Zener diode due to the dislocation of a mask by providing a base region so that it contacts with an anode region around the anode region. CONSTITUTION:The Zener diode has a P<+> type anode region 26 formed on the surface of the insular region 25 that is insulated by a P<+> type separation region 24, and an N<+> type cathode region 27 formed on the surface of the anode region 26. The diffusion depth of a P-type base region 28 that is provided around the anode region 26 so as to contact with it is made deeper than that of the cathode region 27 and shallower than that of the anode region 26 so as to decrease the pattern dimension of the insular region 25. Moreover, the opening area of the anode region 26 is equal to that of the cathode region 27 or slightly larger than that of the region 27. With this structure, the short circuit with the insular region 25 can be prevented even if the cathode region 27 protrudes from the anode region 26 due to the dislocation of a mask.
Patent JP-H0270134-A (JP)
Title: Noise reducer for electric acoustic system
Inventor: MIKUROSU IMURAA
IPC: H03G9/18
Filed: 1987-05-29
Abstract: PURPOSE: To improve the reliability and economy by providing a specific correction circuit including a threshold level detector. CONSTITUTION: An output voltage signal Vs whose S/N within a predetermined frequency band is improved is obtained at an output terminal 12 of a dynamic filtering correction circuit 100 for an input signal Ve received at an input terminal 11. The circuit 100 is in operation within a frequency band limited around a predetermined frequency. The signal Ve is fed to a total sum circuit 9 via an inverting circuit 7. An output from a band pass filter 2 is given to the circuit 9 via a compression limit circuit 3 and an element 8. The element 8 adjusts a level of a voltage VL the same polarity as that of the voltage Ve at a terminal 4. The voltage Ve at the terminal 4 is fed to a gain variable linear amplifier 5 whose gain is adjustable and then fed to a threshold level detector 6, which controls the circuit 3.  An inverting input terminal of an operational amplifier 90 in the circuit 9 is connected to the terminal 12 via a loop resistor 93. Thus, the device is used without the need for signal coding with high reliability and economy.
Patent JP-S5359815-A (JP)
Title: Motor stop controlling system
Inventor: ISHIBASHI MASAYUKI
IPC: G11B15/48
Filed: 1976-11-10
Abstract: PURPOSE: To stop at a determined position by fkiwing the first braking current by a time point decelerated to1/4 of a constant speed time of a motor rotational speed from a motor stop beinning time point, and later supplying the second braking current during a determined period. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H09321011-A (JP)
Title: Device for spin cleaning treatment
Inventor: HIROSE HARUMICHI
IPC: B08B3/02
Filed: 1996-05-29
Abstract: PROBLEM TO BE SOLVED: To facilitate the replacing work and steadily clean the lower surface of a work by forming a nozzle having a hole at the center of a fixed shaft on an umbrella of the fixed shaft and size enough to cover a screw which mounts a turn table removably on a rotary shaft. SOLUTION: A lower nozzle 26 has an umbrella 26b covering the top end face of a rotary shaft 3 to block a cleaning liq. used for cleaning semiconductor wafers from penetrating into this shaft 3. The umbrella 26b of the nozzle 26 covers the top face of a turn table 9 and removably screwed in the center 26a. This allows the umbrella 26b to be removed from the center 26a to expose a screw 9a which mounts the table 9 on the top end of the shaft and hence the table 9 to be removed from the shaft 3 by loosing the screw 9a. Thus it is possible to easily and surely replace the turn table only.
Patent JP-H05333069-A (JP)
Title: Method for measuring electric resistance
Inventor: OOTA TOMOICHIROU
IPC: G01R27/02
Filed: 1992-05-27
Abstract: PURPOSE:To measure a stable and highly accurate resistance value without dependence on power supply voltage by producing pulse signals having different pulse widths according to a resistance value of a resistor to be measured and measuring its pulse width. CONSTITUTION:When power is supplied to a circuit, operational amplifiers OP1, OP2 actuate. Since the amplifier OP2, with normal feedback applied by resistors R1, R2, operates as a hysteresis comparator, output voltage V1 from the amplifier OP1 rises due to flow-in current from a resistor RX to be measured and if it exceeds reverse voltage VT determined by the resistors R1, R2, output voltage V0 from the amplifier OP2 is instantaneously inverted to be applied to the resistor RX. Then a flow-in current direction to the amplifier OP1 is also inverted and if the voltage V1 exceeds the reverse voltage VT, the voltage V0 is again inverted having voltage V0 of original polarity applied to the resistor RX. Thus the amplifiers OP1, OP2 maintain oscillation states. Pulse width of an oscillating waveform at this time is stable and is proportional to a resistance value of the resistor RX, so that a correct resistance value can be obtained by measuring this.