baber/WOPTO huggingface dataset:
Patent JP-H04109620-A (JP)
Title: Manufacture of semiconductor device
Inventor: OSANAI JUN
IPC: H01L21/302
Filed: 1990-08-29
Abstract: PURPOSE:To reduce dispersion on manufacture, and to obtain the excellent shape of a contact hole by composing an intermediate insulating film of two layer films having different impurity concentration and conducting the boring method of the contact hole at the two stages of isotropic etching in a solution and anisotropic etching in vapor phase. CONSTITUTION:An insulating film 2 electrically isolating a semiconductor substrate 1 and a metallic wiring is formed in two layer structure having different impurity concentration, and a boring method for obtaining the electrical coupling of the semiconductor substrate 1 and the metallic wiring is carried out at two stages by isotropic etching in a solution and anisotropic etching in vapor phase. Consequently, etching can be stopped near the boundary of a first layer film 5 and a second layer film 5' in isotropic etching in the solution at a time when a contact hole 6 is bored to intermediate insulating films 5, 5', and extrusion from a gate electrode 4 of a contact can be prevented. Accordingly, a semiconductor device having the excellent shape of the contact and being superior even from the viewpoint of long-term reliability can be acquired.
Patent JP-S6473266-A (JP)
Title: Logic tester
Inventor: ABE SEIICHI
IPC: G01R31/317
Filed: 1987-09-16
Abstract: PURPOSE:To enable the picking up of abnormality in the switching of a signal, by providing a hysteresis holding circuit to hold a hysteresis of an output signal waveform of a logic circuit to be tested and a hysteresis deciding circuit to judge the data thereof. CONSTITUTION:An input pattern 31 or the like is inputted into a logic circuit 40 to be tested through a drive circuit 20 from a tester controlling circuit 30. An output 42 from the logic circuit 40 being tested gives the results 33 of decision to the tester controlling circuit 30 as input through a checking circuit 10, which is made up of a threshold generation circuit 13, a comparator circuit 11, a decision circuit 12, an extraction circuit 14, a hysteresis holding circuit 15 and a hysteresis judging circuit 16. Then, the hysteresis judging circuit 16 checks a hysteresis pattern depending on an output of the hysteresis holding circuit 15 using a counter which counts the frequency at which the output signal 42 passes a threshold value and the output of a counter 17 which holds a hysteresis of an expected value pattern 34.
Patent JP-H0894740-A (JP)
Title: Ultrasonic distance measuring apparatus
Inventor: CHITOKU MINORU
IPC: G01S7/526
Filed: 1994-09-26
Abstract: PURPOSE: To improve the response speed by judging a reflected wave as the regular reflected wave when the reflected wave exceeding a thrshold level is received excepting the time when the present operated distance value is less than the operated distance value at the previous time and the level of the reflected wave is small, and updating the present receiving level. CONSTITUTION: An ultrasonic-wave transmitting/receiving means comprises a transmitting-pulse generator 1 and a transceiver 2. An A/D converter 4 converts the received signal C from the transceiver 2 into the digital signal D and outputs the signal into a microcomputer 5. A counter circuit 3 counts the time from the transmission of the ultrasonic wave to the reception of the reflected wave exceeding a constant threshold value. In the microcomputer 5, a constant value, which is equal to the reciprocating time for the maximum measuring distance in the measuring range, is set as the transmitting time interval of the ultrasonic wave, and the threshold value for the reflected wave is set.  The microcomputer 5 detects the reception of the regular reflected wave exceeding the threshold value based on the signal D, and obtains the distance to the object to be measured based on the time until the reception of the regular reflection exceeding the threshold value.
Patent JP-H1169601-A (JP)
Title: Power-supply circuit for load
Inventor: TABATA YUKINOBU
IPC: H02H3/08
Filed: 1997-08-26
Abstract: PROBLEM TO BE SOLVED: To provide a power-supply circuit which omits a conventional relay as measures against failures and prevents the malfunction of a load due to short-circuit and the failure of a switching element. SOLUTION: When one of switching elements 31a, 31b, 31c is short-circuited and broken down, breakdown is detected by a microcmputer chip 32. All switching elements 31a, 31b, 31c are changed over forcibly to a closed state, and a current is made to flow forcibly to all loads 21a, 21b, 21c. At this time, the allowable current value of a fuse 23 has been set low in advance and the fuse 23 is blown. Thereby, it is possible to prevent the malfunction of the load applied to the switching element which has been short-circuited and broken down.
Patent JP-H11128365-A (JP)
Title: Expanding catheter for introducing expandable stent
Inventor: VENTURELLI ANDREA
IPC: A61F2/06
Filed: 1998-08-14
Abstract: PROBLEM TO BE SOLVED: To provide an expanding catheter creating an effective and sure grip for holding and contact with a stent provided there from inside in order to prevent the detaching of the stent at an introducing stage without obtaining an effect made by the expansion of a balloon at the time of expansion and releasing of the stent. SOLUTION: The catheter is provided with the expandable balloon 13, which is provided so as to wrap the catheter at the terminal of the catheter in an empty state in order to provide the contracted stent 15 around the balloon at the terminal 12 of the catheter. The outer surface of the balloon is made rough by giving material or deforming in order to provide larger contact and grip for the stent tightly contracted around the balloon.
Patent JP-H0393753-A (JP)
Title: Production of alpha-amino acid
Inventor: MIZUNO TADASHI
IPC: C07C229/02
Filed: 1989-09-04
Abstract: PURPOSE:To advantageously obtain the subject compound useful as a food, feed, medicine and intermediate for polymers without using a water-soluble acid or alkali by bringing an alpha-amino acid amide as a raw material in the liquid phase into contact with water in the presence of a specific metal oxide and hydrolyzing the aforementioned compound. CONSTITUTION:An alpha-amino acid amide (e.g. aminoacetamide) expressed by the formula (R1 and R2 are H, lower alkyl, substituted lower alkyl, cyclohexyl, phenyl or substituted phenyl) in the liquid phase is brought into contact with water in the presence of at least one metal oxide selected from the group consisting of zirconium oxide, titanium oxide and niobium oxide and hydrolyzed to afford the objective compound. The reaction is preferably carried out at a temperature within the range of 100-200 deg.C. The equiv. amount of the water is preferably about >=10 times based on the compound expressed by the formula. The metal oxide is used in a molar amount within the range of about 0.01-5 times based on the compound expressed by the formula.
Patent JP-2001046902-A (JP)
Title: Crushing device
Inventor: UEDA HIDETOSHI
IPC: B02C18/00
Filed: 1999-08-17
Abstract: PROBLEM TO BE SOLVED: To crush a treating material without damaging a rotary blade by rotating at a low torque. SOLUTION: In this device, 2 pieces of upper and lower disks 14 are provided at the upper end of a rotary shaft 5 and a rotary blade 6 is freely rotatably attached to the shaft between the disks 14 with a pin 15. The rotary blade 6 is flexible. The treated material charged in a crushing chamber is crushed rotating the rotary blade 6. In such a case, when the treated material hits against the rotary blade 16, the rotary blade 6 is greatly curved to be housed in a groove 17 around the guide body 16 of the base end part.
Patent JP-H0279562-A (JP)
Title: Image reader
Inventor: SUZUKI EIJI
IPC: G06T1/00
Filed: 1988-09-14
Abstract: PURPOSE:To send image data by two picture data through the read of one picture by providing an image edit and storage section storing the image data to be read and a dual storage command section commanding whether or not the read image data is stored in the image edit and storage section in duplicate. CONSTITUTION:A control section 3 controls an image read section 1 by a command of read start by an operation section 2 to read image and when a duplicate storage command exists in a duplicate storage command section 5, the read range of the image is sensed sequentially from a scanning start position S in the main scanning line number M longitudinally and in the subscanning line number N/2 laterally to obtain data of MXN/2 bits. The data read in this way is stored sequentially twice in an image edit and storage section 6. Then the stored data is sent externally through an external interface section 4 according to the predetermined procedure as transmission data.
Patent JP-H04111510-A (JP)
Title: Amplifying circuit
Inventor: FUJISAWA MASANORI
IPC: H03G5/04
Filed: 1990-08-30
Abstract: PURPOSE:To emphasize heavy bass by allowing the low frequency component of an acoustic signal to pass a low-pass filter to invert the phase and amplifying this output signal and the acoustic signal by a first amplifying means to obtain a first output signal and amplifying the output of the low pass filter by a second amplifying means to obtain a second output signal. CONSTITUTION:A low-pass filter 11 which allows the low frequency component of the acoustic signal to pass through and inverts the phase, a first amplifying means A1 which amplifies the acoustic signal and amplifies the output signal of the low-pass filter 11, and a second amplifying means A2 which amplifies the output signal of the low-pass filter 11 are provided. A load R7 is provided whose one end and the other the output signal of the first amplifying means A1 and that of the second amplifying means A2 are applied to respectively. The acoustic signal is amplified, and its low frequency component is subjected to BTL(balanced transformerless) amplification. Thus, heavy bass is emphasized and amplified.
Patent JP-2000068875-A (JP)
Title: Frequency error detection circuit
Inventor: SHIRATO YASUSHI
IPC: H04B17/309
Filed: 1998-08-17
Abstract: PROBLEM TO BE SOLVED: To detect a frequency offset with high accuracy even when the frequency error detection circuit is in use under a multi-path environment where a signal is propagated through plural paths between a transmitter and a receiver. SOLUTION: The frequency error detection circuit is provided with a transmission line estimate device 100 consisting of a transversal filter 150 that receives an reception signal at its input, of a subtractor means 160 that subtracts an output of the transversal filter 150 from the received signal, of a tap coefficient update means 170 that updates a tap coefficient of the transversal filter 150 based on its output and the received signal according to a prescribed adaptive algorithm 170, and with a phase rotation detection means 200 that uses a tap coefficient applied to at least one tap of the transversal filter 150 for an input signal and detects a phase rotation amount of the input signal per unit time.
Patent JP-H0762956-A (JP)
Title: Assembled screen door device
Inventor: NARUKAWA TSUTOMU
IPC: E06B9/52
Filed: 1993-08-25
Abstract: PURPOSE:To easily and simply adjust wire tension by simplifying the wiring of a wire tension mechanism, improving workability, fixing wires to a coupling member removably provided on at least one of both the upper and lower end sections of a moving member, and making the vertical size of the moving member properly cuttable. CONSTITUTION:This assembled screen door device main body 10 is constituted of the first and second fixed members 11, 12 and a moving member 13. Multiple wires 31, 32 constituting a wire tension mechanism 30 are wired without being crossed in the moving member 13 between the fixed members 11, 12 and the moving member 13, both end sections of the wires 31, 32 are fixed to a coupling member 41 removably provided on at least one or both of the upper and lower end sections of the moving member 13, and vertical size of the moving member 13 can be simply adjusted when the moving member 13 is properly cut.
Patent JP-2001026271-A (JP)
Title: Container cart for harvesting potato
Inventor: NISHIMURA HISAO
IPC: A01D90/00
Filed: 1999-07-13
Abstract: PROBLEM TO BE SOLVED: To provide a container cart for harvesting potatoes capable of reducing a worker's labor and fatigue by placing a container on the cart provided with wide wheels, thereby lightly and freely moving the container in a soft and rolling field while the potatoes are taken in the container. SOLUTION: A sleeve 11 is fitted to each of shafts provided on the front and rear parts of an angle frame, and loaded with a wide wheel 2. After that, a washer 10 and a split pin 5 are fitted to the sleeve. A handle and a rope storing metal fitting 9 are provided on the front side of the angle frame 1, and a stopper is provided as a flat bar on the rear side thereof.
Patent JP-H0685774-A (JP)
Title: Signal system changeover system for transmitter
Inventor: ARAKI HIROFUMI
IPC: H04J3/14
Filed: 1992-08-31
Abstract: PURPOSE:To surely transmit a signal at a low cost regardless of the insertion/ withdrawal of a changeover control panel or a signal transmission panel or the like in the signal system changeover system for a transmitter. CONSTITUTION:A signal changeover means 1 selects either signal system of an active system or a standby system based on a switching signal 2a from a changeover control means 2. Furthermore, the switched state is stored as changeover information 1a and kept till a new switching signal is inputted. Then the changeover control means 2 outputs a changeover signal 2a used to command the changeover of either the active or the standby signal system based on the changeover information 1a from the signal system changeover means 1.
Patent JP-H0548565-A (JP)
Title: Data multiplexing device and multiplexed data separating device
Inventor: KOYANAGI HIDEKI
IPC: H04L5/22
Filed: 1991-08-19
Abstract: PURPOSE:To obtain a data multiplexing device capable of equalizing the multiplexing unit with the physical recording unit of a storage medium and to obtain a multiplexed data separating device without causing failure even when prior reading of data at the time of time-division-multiplexing plural variable data items with multiplexing unit of fixed data length. CONSTITUTION:The devices are provided with a controller 4 that carries out time-division-multiplexing of plural variable rate data items D1, D2, ... Dn in multiplexing unit of fixed data length. Further, at least the capacity of fixed data length in multiplexing unit is prepared in plural buffers S1, S2,...Sn each of which is installed corresponding to plural original data items that are regenerated from multiplexed data items obtained by carrying out time-divisioin- multiplexing of plural variable rate data items in multiplexing unit of fixed data length.
Patent JP-H0761870-A (JP)
Title: Method for metallizing ceramics and silver solder material used therefor
Inventor: SUDO HIDEKAZU
IPC: B23K35/30
Filed: 1993-08-24
Abstract: PURPOSE:To obtain an inexpensive silver solder material capable of readily metallizing ceramics in a simple equipment by adding Ni, Co or Fe to silver solder. CONSTITUTION:This silver solder material is obtained by adding 2-25wt.% of one or two or more kinds of metals selected from Ni, Co and Fe to silver solder. In this silver solder material, since either one or two powder of Ni, Co and Fe contained is dispersed into the solder material in a state of powder without fusing at a temperature at which the silver solder material is fused, usually, at 600-900 deg.C, the powder suppresses aggregation of the silver solder material and improves wetting property of the solder material to the ceramic surface. When an amount of Ni, Co and Fe added is <2wt.%, ceramic surface can not uniformly be metallized and when an amount of Ni, Co and Fe added is >25wt.%, the ceramic surface can not be metallized, because the silver solder is not wetted on the ceramic surface.
Patent JP-H04232614-A (JP)
Title: Magnetic recording hard disk whose surface is roughened and surface roughening method
Inventor: BURUUSU PIITAA KURUUGAA
IPC: B24C1/04
Filed: 1991-08-20
Abstract: PURPOSE: To roughen the surface of a hard disk for magnetic recording by bringing particles into collision against a substrate surface without removing the base material of the disk by using an ultrasonic probe at the time of roughening the surface of the hard disk. CONSTITUTION: The disk-shaped aluminum base member 13 is mounted at a rotatable supporting hub 20 and is placed in a vessel 21 housing a polishing slurry 22 of about 3 micron in diameter. When an accelerating force generating member, i.e., the ultrasonic probe 23 is mounted at this vessel and is energized, a tip 24 generates vibration and ultrasonic motion in a perpendicular direction and accelerates the slurry 22 so as to bring the slurry into collision against the surface region 15 of the base member 13. As a result, the slurry acts in the form of inducing the plastic deformation of the base material without removing the base material from the base member.
Patent JP-H0544657-A (JP)
Title: Control of displacement volume of vane pump
Inventor: SHIMOSAKO ISAMU
IPC: F04C14/22
Filed: 1991-08-20
Abstract: PURPOSE:To secure the pump operation at the low temperature start of a vane pump by making the displacement volume of a vane pump to a prescribed minimum value at the start of a rotor. CONSTITUTION:A cam ring 1A is shifted in the vertical direction by one actuator 3 and the other actuator 2 which are installed on both the sides in the vertical direction for the rotary shaft of a rotor 1B, and the displacement volume of a displacement chamber 3f can be varied by this shift. The displacement volume at the start of the rotor 1B is set to a value not higher than the maximum displacement volume and not lower than the minimum displacement volume for permitting the pressurized oil discharged by the pumping action to generate a prescribed oil pressure, and after the discharged pressurized oil is generated, the displacement volume is controlled to the magnitude demanded for the formation of the hydraulic pressure of the discharged pressurized oil which is necessary afterwards. Accordingly, the pump operation on the low temperature start of a vane pump 1 can be secured.
Patent JP-2000066280-A (JP)
Title: Film cartridge type camera
Inventor: INAZUKA MASAHIRO
IPC: G03B17/00
Filed: 1998-08-18
Abstract: PROBLEM TO BE SOLVED: To provide a film cartridge type camera having a lock mechanism locking a cover member of a film cartridge housing chamber which is simple, and small in an occupied space and capable of reducing the cost. SOLUTION: A gear switching means 52 is equipped with a sun gear 30, 1st and 2nd planet gears 32 and 34 and a planet lever 54. The sun gear 30 meshes with an upstream-side gear 28 on a side where rotational driving force is given in a winding and rewinding gear train 22 and meshes with the gears 32 and 34. The lever 54 is provided on the supporting shaft 30A of the gear 30 rockingly through a friction spring to the gear 30 and the gears 32 and 34 are rotatably supported on the lever 54 in the state that they mesh with the gear 30. Projecting parts 56 and 58 abutting on a lock pawl 68 locking the cover member 64 in a closed state are provided on the lever 54.
Patent JP-S6388253-A (JP)
Title: Choke device for turn throttle valve type carburetor
Inventor: YAOITA AKIO
IPC: F02M1/02
Filed: 1986-09-30
Abstract: PURPOSE:To promote the miniaturization of a carburetor and the improvement of its suction efficiency when a choke valve is fully opened, by concentrically providing a choke valve turning groove with a turning throttle valve in its periphery and turnably arranging the choke valve of internal arc-shaped section in said choke valve turning groove. CONSTITUTION:A throttle valve guide cylinder 13 is provided to be drilled in the intermediate part of an intake path 12 in a carburetor 10, and a turning throttle valve 16 is turnably arranged in the guide cylinder 13. While the carburetor 10 provides from its main unit upper surface to the bottom part of the intake path 12 a choke valve turning groove 30 formed into a circular arc shape concentrically with the outside diameter of the turning throttle valve 16. And a choke valve 31, which forms a shield shape with its section in a circular arc shape, is turnably arranged in the turning groove 30. In this way, the carburetor enables its main unit intake path to decrease the length in the lengthwise axial center direction further the suction efficiency, when the choke valve is fully opened, to improve.
Patent JP-H0786532-A (JP)
Title: Semiconductor device and its manufacture
Inventor: MOMIYAMA YOICHI
IPC: H01L21/8247
Filed: 1993-09-17
Abstract: PURPOSE:To improve a load driving capability by employing semiconductor layers formed on an insulating amorphous substrate. CONSTITUTION:A polycrystalline silicon layers 13a, a polycrystalline silicon layer 13b and a polycrystalline silicon layer 13c which correspond to a polycrystalline silicon layer 12a, a polycrystalline silicon layer 12b and a polycrystalline silicon layer 12c of which a memory cell is composed are employed to compose a transistor for a driving circuit, a peripheral circuit or the like as a double-gate type transistor 13 having an upper gate 27 and a lower gate 26. The semiconductor layers formed on an insulating amorphous substrate 11 are employed and the load driving capability of the transistor can be improved and the high speed operation of the transistor can be achieved.
Patent JP-H1074992-A (JP)
Title: Piezoelectric transformer component
Inventor: FUKUSHIMA HIROSHI
IPC: H01L41/107
Filed: 1996-09-02
Abstract: PROBLEM TO BE SOLVED: To prevent the generation of audio-frequency vibration sound and provide a method for holding a highly reliable piezoelectric transformer which can be miniaturized, especially at the time of loading a cold cathode tube. SOLUTION: A Rosen-type piezoelectric transformer, which is provided with driving electrodes 4 and 5 formed on the front and rear planes of a piezoelectric element and a generating electrode 6, is stored in an armor case 11, which has input/output conducting parts 10 and 13, and a piezoelectric transformer holding structure sandwiches a piezoelectric transformer main body 1 via the armor case 11 through rubber elastic body 12.  In this case, the rubber elastic bodies 12 and 14 positioned at the generating electrode 6 and the part of the driving electrodes 4 and 5 of the piezoelectric transformer are conductive, the conductive parts 10 and 13 are connected to the generating electrode 6 and the driving electrodes 4 and 5 through the conductive rubber elastic bodies 12 and 14, and at least one supporting position of the rubber elastic body 15 or the conductive rubber elastic bodies 12 and 14 is located at a part away from the vibration node by 1/8 of a wavelength.
Patent JP-H0571651-A (JP)
Title: Depressure valve gear
Inventor: IMADA YOSHIO
IPC: F16N25/02
Filed: 1991-09-11
Abstract: PURPOSE:To impart a time difference while a depressure action takes place since it has reached to the preset working pressure because there is a fear of causing an operational failure when a main pipe is lengthened, if a depressure valve being used in a depressure responding type distribution system is a type that immediately responds to the stop of a pump. CONSTITUTION:A valve stem 5 is pressed by a strong spring 4, and a ring piston 7 holding this valve stem 5 free of sliding motion is pressed by a weak spring 6. The valve stem 5 is provided with an engaging part 8a, and it is made so as to open a bypass port 9 at an upper limit position of the ring piston 7 so quickly till this piston 7 canes into contact with the engaging part 8a but after contacting, it further goes up in a state of being decelerated.