baber/WOPTO huggingface dataset:
Patent JP-H0946144-A (JP)
Title: Insulated class d amplifier
Inventor: NAKAJIMA YASUFUMI
IPC: H02M7/48
Filed: 1995-07-28
Abstract: PROBLEM TO BE SOLVED: To realize a class D amplifier whose output is isolated from a voltage source and in which a maximum output is properly set. SOLUTION: The amplifier is mainly made up of a primary circuit having a transformer 21 and switch means 11, 12 of half bridge, full bridge or push-pull configuration and a secondary circuit having the transformer 21 and combination of one or two switch means 23, 24 in pairs driven complementarily. Then a 3rd signal for driving the secondary side obtained by an output of a logic circuit 19 receiving a 1st signal for driving the primary side and a 2nd signal subject to 2-state modulation of an amplified signal is used to drive the secondary circuit. Thus, the 2-state modulation signal is amplified for the power and the resulting signal is given to a low-pass filter 10 to realize desired isolation and power amplification.
Patent JP-H0943173-A (JP)
Title: Auger electron spectroscope
Inventor: HOSOKAWA FUMIO
IPC: H01J37/22
Filed: 1995-07-28
Abstract: PROBLEM TO BE SOLVED: To accurately detect and correct the deviation of an analyzed position due to the drift of a sample and the temperature stability of an illumination system. SOLUTION: When an Auger electron analysis is started, a secondary electron image collector 10 collects a standard secondary electron image, and stores it in a Fourier transform standard image memory 17. After the Auger electron analysis is started, the analysis is interrupted, the collector 10 collects comparison secondary electron image, stores it in a Fourier transform comparison image memory 18, detects the deviation of the analyzed position by the cross- correlation with standard secondary electron image by an inverse Fourier transforming unit 20 and a deviation detector 21, and corrects the analyzed position. The deviation of the analyzed position can be accurately detected and corrected. The Auger electron analysis is interrupted in a short time repeatedly for an each predetermined time during the Auger analysis, and the correction of the analyzed position can be executed.
Patent JP-H0479293-A (JP)
Title: Formation of conductor film on board surface
Inventor: MASAKI YASUSHI
IPC: H01L21/285
Filed: 1990-07-20
Abstract: PURPOSE:To improve the bonding power between a conductor film and the surface of a board by cleaning the surface of the board and forming a precoat layer by ion bombardment simultaneously under the condition where a precoat material is laid out near the surface of the board. CONSTITUTION:After a processing chamber 10 is evacuated, Ar gas is introduced into the chamber 10. High frequency voltage is applied to a board 22 by way of a board holder 20 under the state where a shutter mechanism 40 is closed, thereby generating the plasma of Ar between the shutter mechanism 40 and the board 22. The surface of the board 22 is cleaned by the bombardment of Ar<+> ions to the side of the board 22. At that time, a precoat target frame 30 which keeps the same potential to the board 22 is simultaneously bombarded so that the precoat material maybe subjected to sputtering, thereby forming the precoat layer on the surface of the board 22. The shutter mechanism 40 is opened to the board 22 where voltage is applied to a conductor target 50 and a conductor film is formed on the surface of the board 2 by sputtering. This construction makes it possible to reduce work process, shorten opening time and enhance bonding power between the conductor film and the board as well.
Patent JP-S6171236-A (JP)
Title: Shock absorbing device for cylinder of dump truck
Inventor: KURODA KOJIRO
IPC: F16F7/00
Filed: 1984-09-14
Abstract: PURPOSE:To relieve a shock by rotatably supporting the piston rod of a cylinder for a dump truck on one end of a bracket which is rotatably supported by an elevatable frame while holding the other end of said bracket between rubber cushions. CONSTITUTION:The lower end of the cylinder 2 of a dump cylinder is rotatably supported by a bearing base 4 which is projectingly provided on a chassis frame 3. The upper end of the piston rod 5 of the dump cylinder is also rotatably supported by one end 7a of a bracket 7 which is rotatably supported by an elevatable frame 6. The other end 7b of the bracket 7 is held, on its both sides, by rubber cushions 8a, 8b which are fixed to retainer boards 9a, 9b which are provided on the elevating frame.
Patent JP-S5896247-A (JP)
Title: Detector for welded part
Inventor: FUJIMOTO MINORU
IPC: G01N29/40
Filed: 1981-12-03
Abstract: PURPOSE:To obtain an apparatus for detecting a welded section of metal material such as seam welded pipe by a method wherein a horizontal ultrasonic wave generated in a metal material is detected propagating therethrough and then, a welded part is determined from the reflected horizontal ultrasonic waves based on the preset reference reflected wave. CONSTITUTION:When a transmitting/receiving coil 4 is pulse excited with a pulse generator 6 while a D.C. coil 2 is excited by an excitation power source 5, an electromagnetic force works on the surface of a steel pipe and causes varying strains which are propagating through the steel pipe as a horizontal mode ultrasonic wave. The ultrasonic wave reflected back on the inner surface of the steel pipe produces an induction current on the outer surface of the steel pipe and a magnetic change by the induction current is received with the transmitting/receiving coil as voltage. The voltage received is transmitted to gate circuits 9A and 9B. Only signals in the sector set by a gate setting circuit 17 are transmitted to a peak hold devices 10A and 10B and added with an adder 11. After the addition, the signals are sample held at a timing controlled with a timing control circuit 16. When the sample value becomes lower than the set value, a comparator 13 works to detect a seamed part. The detection and indication of the seamed part is performed with an output relay 15 ON.
Patent JP-H0840120-A (JP)
Title: Rear seat for vehicle
Inventor: HORISAWA KOTA
IPC: B60N2/14
Filed: 1994-07-27
Abstract: PURPOSE:To extensively reduce the manufacturing cost in a simple constitution by making a revolving part of a seat of only a side support part of a seat back. CONSTITUTION:Seat backs 2L, 2R are constituted by fastening a center support frame 10 to hold a center supporting part on a supporting shaft 9 free to rotate and holding an upright revolving shaft 12 on bearing parts 11L, 11U formed on the support shaft 9 and the center support frame 10. A side supporting frame 13 to hold a reverse U shaped side support part 5 is fastened on the revolving shaft 12, and a revolving position of the revolving shaft 12 is regulated by a revolution positioning mechanism 15 constituted of a rachet plate 16, a lock lever 19, a wire 20 for release and a plate spring 21. Only the seat backs 2L, 2R are inclined at an optional angle.
Patent JP-H1141325-A (JP)
Title: Bus analyzer
Inventor: FURUKAWA YASUSHI
IPC: H04L69/40
Filed: 1997-07-18
Abstract: PROBLEM TO BE SOLVED: To exactly measure the arriving time of packet data by providing a package arrival time measuring circuit for counting a time synchronously with the clock signal of a physical layer IC and a link layer IC, and storing a time at the time of receiving packet data in the link layer IC. SOLUTION: When packet data 100 are received by a physical layer IC4, an FIFO memory control circuit 13 of a packet arrival time measuring circuit 51 reads 32 bit data counted by a timer circuit 12 synchronously with a detection signal from a reception detecting circuit 15, and writes the data in an FIFO memory circuit 14 for a time. A packet storing circuit 17 sequentially reads data from the link layer IC5, and also reads the arrival time of data from the FIFO memory circuit 14 for a time, and stores the data. Then upon receiving the packet data 100, the arriving time is stored in the FIFO memory circuit 14 for a time so that the arrival time of the packet data 100 can be exactly measured.
Patent JP-H1017965-A (JP)
Title: Aluminum alloy having sulfuric acid anodizing film coloring into whitish color, and its production
Inventor: MORIYAMA TAKESHI
IPC: C22C21/00
Filed: 1996-07-04
Abstract: PROBLEM TO BE SOLVED: To provide an Si-containing aluminum alloy, which has an anodic oxidation coating, formed by sulfuric acid bath, capable of coloring into whitish color with stability even if significant amounts of Si coming from scrap material, etc., are contained, and its production. SOLUTION: The aluminum alloy, coloring into whitish color by means of sulfuric acid anodizing treatment, has a composition which consists of, by weight, 1.0-2.0% Fe, 0.02-0.3% Si, <=1.0% Mg, <=0.03% Mn, and the balance Al with impurities excluding Si and Mn and in which Mg/Si by weight ratio is regulated to >=3.0 and to which a structure-improving element such as Ti is added. Further, the amount of precipitation and crystallization of Si as simple substance is controlled to <=0.02%.
Patent JP-S6253587-A (JP)
Title: Magnetic recording and reproducing system
Inventor: OBARA NAGAYOSHI
IPC: G11B20/06
Filed: 1985-09-03
Abstract: PURPOSE:To synthesize an FM luminance signal, a band-compressed carrier chrominance signal and an FM sound signal and to record it on a video track by frequency-dividing a carrier chrominance signal, compressing its band and inserting the FM sound signal to an empty band generated by a band compression. CONSTITUTION:A video signal is supplied to a luminance signal process circuit 12 and a chromaticity signal process circuit 13 through an input terminal 11. The luminance signal is converted to the FM luminance signal, and the carrier chrominance signal, after being divided, is converted to the band-compressed carrier chrominance signal, being synthesized at a synthesizing circuit 14, and is supplied to one side input terminal of a synthesizing circuit 15. Meanwhile, stereo signals L and R are supplied respectively to input terminals 21 and 22 and a signal introduced by the selection of a switch 29 is supplied to the other side terminal of the synthesizing circuit 15. Therefore, a recording signal including each information regarding luminance, color and sound is obtained from the synthesizing circuit 15 and the signal is supplied to each of video heads A and B through recording amplifiers 30 and 31 provided in parallel.
Patent JP-H0359859-A (JP)
Title: Floating head slider
Inventor: MASUKAWA TETSUO
IPC: G11B21/21
Filed: 1989-07-28
Abstract: PURPOSE:To enlarge the rigidity and attenuation of an air film and to stabilize a head floating quantity by enlarging the width of a slider rail in an air flowout end compared to that in an air inflow end. CONSTITUTION:The width of the slider rail in the flowout end part of an air flow is made wider than a flat part 2 on the inflow end-side of the air flow. The depth of a groove part 4 where air pressure is not generated is set to be 20mum, for example. Since a flat part 3 has a function as a step bearing, the rigidity of the air film can be improved and the width of the slider rail in the flat part 3 is wider than that in the flat part 2, a squeeze effect in the part is generated and attenuation is enlarged. Thus, the rigidity and the attenuation of the air film can be enlarged not by changing the head floating quantity and a head pressing load but by changing the form of the head slider rail. Consequently, the head floating quantity can be stabilized.
Patent JP-S5983777-A (JP)
Title: Corrosion inhibiting method of carbon steel device utilizing heat-insulating material
Inventor: OOKUBO KATSUO
IPC: C23F11/00
Filed: 1982-11-04
Abstract: PURPOSE:To easily provide a carbon steel device with anticorrosive property at a low cost, by using an anticorrosive heat-insulating material prepd. by impregnating a heat-insulating material with a nitrite as a lagging material for the carbon steel device. CONSTITUTION:Calcium silicate asbestos, glass wool, etc. may be used, for instance, as the heat-insulating material, while sodium, potassium, calcium or ammonium nitrite may be used as the nitrite. The treatment to impregnate the heat-insulating material with the nitrite is performed either by dipping the inner layer of the heat-insulating material in an aqueous nitrite solution or by applying or spraying the aqueous nitrite solution onto the inner surface of the heat- insulating material. Said content is made above about 0.01g by 1cm<2> of the heat- insulating material. After the impregnation, the heat-insulating material is dried. Sodium silicate or synthetic resin emulsion may be conjunctly used in addition to the nitrite.
Patent JP-2000031386-A (JP)
Title: Semiconductor device
Inventor: MATSUI YOSHINORI
IPC: H01L21/822
Filed: 1998-07-09
Abstract: PROBLEM TO BE SOLVED: To provide a semiconductor device in which an input terminal (bonding pad) can be adjusted to have a specified capacitance without needing a large area, increasing manufacturing process, and enlarging delay in an input signal. SOLUTION: This semiconductor device consists of a first input protective resistor 101 for preventing electrostatic breakdown which is connected with a bonding pad, an input circuit part 102 connected with the bonding pad through the first protective resistor, a second input protective resistor 107 for preventing electrostatic breakdown which is connected with the bonding pad, and elements 104, 105 for adjusting input terminal capacitance which are connected with the bonding pad through only the second input protective resistor out of the first and the second input protective resistors.
Patent JP-H0531953-A (JP)
Title: Ion flow electrostatic recording head
Inventor: SHIGA NAOHITO
IPC: B41J2/415
Filed: 1991-08-02
Abstract: PURPOSE:To enhance the durability of second electrode, to uniformize a discharge state and to stabilize the generation quantity of an ion by providing an oxidative deterioration preventing treated layer to the peripheral surface of the metal foil forming the second electrode having an aperture part formed thereto corresponding to a first electrode and a matrix. CONSTITUTION:In an ion flow electrostatic recording head, a plurality of first electrodes 4 extend in parallel to the direction vertical to the surface of a drawing and a plurality of second electrodes 5 extend in the direction different from that of the electrodes 4 and have the aperture parts 5a corresponding to the first electrodes 4. A dielectric layer 6 is held between the electrodes 4, 5 and third electrodes 8 having ion passing aperture parts 8a are arranged on the side opposite to the second and first electrodes 5, 6 and an insulating layer 9 is held between both electrodes 5, 8. In this case, an oxidative deterioration preventing treated layer 21 composed of a noble metal such as platinum with thickness of about 0.7mum is provided to the surfaces of the inner peripheral walls of the aperture parts 5a of the second electrodes 5 and both upper and rear surfaces around the aperture parts 5a.
Patent JP-H0645783-A (JP)
Title: Matched type radio wave absorbent
Inventor: OUCHI YASUMASA
IPC: B32B33/00
Filed: 1992-07-21
Abstract: PURPOSE:To obtain a matched type radio wave absorbent which is lessened in weight and excellent in radio wave absorbing performance by a method wherein a conductive reflector is provided behind a radio wave absorbing layer where powder of high permeability is mixed. CONSTITUTION:A matched type radio wave absorbent 1 is composed of a plate- like radio wave absorbing layer 2 and a conductor reflector 3 provided behind the absorbing layer 2. The radio wave absorbing layer 2 is composed of dielectric material such as mortar or synthetic fiber and material of high permeability mixed into dielectric material. It is preferable that a dielectric fiber such as carbon fiber is mixed. The conductive reflector 3 is composed of a metal foil, net of carbon fiber possessed of a large number of through-holes, metal net, punching metal, and metal expander and serves to reflect radio waves which penetrate into the radio wave absorbing layer 2. By this setup, the radio wave absorbing layer 2, which is optimal to absorb television broadcasting electric waves and to enable incident electric waves and the reflected waves from the conductive reflector 3 to interfere with each other to be weakened, can be lessened in thickness and weight.
Patent JP-H0925524-A (JP)
Title: Production of sintered aluminum material
Inventor: NISHIO JIRO
IPC: B22F3/24
Filed: 1995-07-05
Abstract: PROBLEM TO BE SOLVED: To provide a new sintered aluminum alloy material improved in productivity, capable of production at a low cost, excellent in workability in the subsequent stages, and minimal in evolution of gas. SOLUTION: A lubricant is mixed with a metal powder composed essentially of aluminum powder prepared in an oxygen-containing atmosphere. The resulting mixture is compacted and formed into a green compact having >=95% true density ratio. After degreasing treatment is applied to the green compact, heating is performed in a vacuum of 10<-3> to 10<-5> Torr, by which a sintered compact is formed. At this time, in the case where an additive metal, such as copper, to be alloyed with aluminum is mixed with the metal powder, its grain size is regulated to the prescribed value or below according to the required levels of surface roughness and gas evolution after working. By this method, the clean sintered material, improved in machinability and minimal in evolution of gas, can be obtained.
Patent JP-H04251942-A (JP)
Title: Semiconductor device
Inventor: MOTAI KENJI
IPC: H01L23/544
Filed: 1991-08-05
Abstract: PURPOSE:To obtain an electrode structure which can improve the non-defective rate of products by ameliorating solderability with an execution object of a disc type semiconductor device where electrode plates are soldered on both sides of a semiconductor chip. CONSTITUTION:A protruding step 2b protruding to a solder-bonding face 6 of a semiconductor chip 1 is formed by swelling at the center of the substrate 2a of an electrode plate 2, and this protruding step is applied on the solder- bonding face of the semiconductor chip to make soldering with the substrate of an electrode plate floated from a protection layer 5 formed on the surface on the semiconductor chip side. This process prevents the semiconductor chip from sliding outward of the electrode plate by the surface tension of molten solder and from being damaged by direct. application of pressurization load on the above-mentioned protection layer from the electrode plate and allows electrode plates to secure an insulating sap D larger than the thickness (d) of the semiconductor chip.
Patent JP-S6255588-A (JP)
Title: Scale plate and manufacture thereof
Inventor: KUMAGAI MITSUHARU
IPC: B29C45/26
Filed: 1985-09-05
Abstract: PURPOSE:To enable the molding of a scale plate with a high plane accuracy having a protruded scale part of the surface thereof, by inserting a thin surface layer paper into a die to do an injection molding. CONSTITUTION:A thin surface paper 5 formed in a shape of a specified scale plate is inserted into dies 11 and 12 of an injection molding machine and a melt resin 6a is injected into the dies 11 and 12 to mold a base 6 integral. The surface layer paper 5 is bulged into a die scale recess part 12a at the part corresponding to a scale by a resin injection pressure during the molding to the base to obtain a scale plate 7 having a protruded scale part 5a made up of bulged projections of the surface layer paper on the surface thereof. After the molding, a molding takeoff unit with a vacuum suction type sucker between the dies 11 and 12 is advanced and the scale plate 7 is sucked to be taken out between the dies 11 and 12. This facilitates the die release of the scale plate 7 making it easy to take out without firm sticking of the resin 6a to the inner surface of the die 12.
Patent JP-2000024455-A (JP)
Title: Treatment of carbon dioxide
Inventor: KOTAKI TORU
IPC: B01D53/34
Filed: 1998-07-09
Abstract: PROBLEM TO BE SOLVED: To easily and efficiently execute treatment of carbon dioxide contained in waste gases generated in ships and floating structures of the ocean and rivers, by compressing or thickening the carbon dioxide included in the waste gases after cooling the waste gases, mixing the same with seawater or fresh water to absorb and dissolve the carbon dioxide and discharging the water into the sea or the fresh water. SOLUTION: The waste gases 1 discharged form the main engines, or the like, of the ships are first cooled by a gas cooler 2 down to a temp. at which the carbon dioxide may be efficiently absorbed. The waste gases are subjected to desulfurization and denitration when the ship has a desulfurization and denitration apparatus 3 for the waste gases. Next, pressure is applied on the waste gases to adsorb the carbon dioxide in the gases to adsorbents. The gases are then introduced into a thickener 4 which deaerates the adsorbed gases to thicken the gases. The carbon dioxide 5 after the thickening is bubbled in an absorbing and dissolving device 8 taking in the seawater 7 which may be easily acquired from outside the ships by a seawater supply pump 6, or the like, and is absorbed and dissolved into the seawater.  The water 9 dissolved with the carbon dioxide is thereafter discharged into the seawater against the water pressure by an outboard discharging device 10.
Patent JP-H0358119-A (JP)
Title: Dual system of external storage device
Inventor: KUWAYAMA TAKUZO
IPC: G06F3/06
Filed: 1989-07-26
Abstract: PURPOSE:To ensure the contents of two external storage devices even when a computer breaks down by defining the dual external storage to a main device and a sub-device, and allowing them to have a function for writing the same information and a function for reading in one of them. CONSTITUTION:A computer 1 is provided with an input/output request processing mechanism 2 and an input/output control mechanism 3, and to the computer 1, a main device 4 and a sub-device 5 are connected as external storages. The input/output control mechanism 3 has a correspondence table of a logical device name and a physical device number, and executes an input/output control by converting the logical device name to the physical device number, based on the correspondence table. In such a way, with respect to an input/output request processing, an input/output request is executed by the logical device name, an input/output control is executed to both the main device and the sub-device of a physical device by an input/output mechanism, and as for an input, an input request is executed in order of the main device and the sub-device, and as for an output, an output request is executed in order of the sub-device and the main device, by which even when the computer in the course of input/output request breaks down, the contents of the main device and the sub-device are unified.
Patent JP-H0244634-A (JP)
Title: Color image receiving tube
Inventor: KONOSU OSAMU
IPC: H04N9/28
Filed: 1988-08-04
Abstract: PURPOSE:To correct misconvergence in the vertical and horizontal directions and reduce shape distortion of a beam spot by allowing only positive half cycle of vertical deflecting current to flow in a coil wound on No.1 channel-shaped core of a corrective mag. field generator, and by permitting only negative half cycle to flow in a coil wound on No.2 channel-shaped core. CONSTITUTION:A corrective mag. field generator consists of No.1 and No.2 channel-shaped core 15a, 15b and coils 16a, 16b wound on them. Half cycle component of the vertical deflection current flowing into a vertical deflection coil 18 from a vertical deflection output circuit 19 flows in the coil 16a while the remaining half cycle component in the other coil 16b. In the period the upper half of a fluorescent surface is scanned with electron beam, corrective mag. field in barrel tendency is generated only between the two legs of the lower core 15b, and a force F directed outward is applied to electron beams on the two sides. In the period the lower half of the fluorescent surface is scanned, on the other hand, vertical correction mag. field in barrel tendency is alike generated only between the two legs of the upper core 15b.