baber/WOPTO huggingface dataset:
Patent JP-H01146366-A (JP)
Title: Method of driving conductivity modulation mosfet
Inventor: NAKAGAWA AKIO
IPC: H01L29/78
Filed: 1987-12-03
Abstract: PURPOSE:To improve turn-off switching speed without increasing an ON voltage, by previously forming a channel under a second gate electrode before eliminating a channel under a first gate electrode for turn-off driving a conductivity modulation MOSFET having double gate structure. CONSTITUTION:On a semiconductor wafer 1 having a region of the first conductivity type, there are selectively formed a base diffused layer 2 of the second conductivity type, a first source diffused layer 3 of the first conductivity type, a drain diffused layer of the second conductivity type and a second source diffused layer 9 of the first conductivity type. A source electrode 4 is formed in contact with the base diffused layer 2 and the first source diffused layer 3 simultaneously and a drain electrode 10 is formed in contact with the drain diffused layer 8 and the second source diffused layer 9 simultaneously. Further, first and second gate electrode 6, 12 are provided selectively as shown in the drawing through the respective gate insulating films. In order to turn-off drive the conductivity modulation MOSFET thus produced, a channel is formed under the second gate electrode 12 before eliminating a channel under the first gate electrode 6.
Patent JP-H04177709-A (JP)
Title: Releasable type electromagnet device
Inventor: OSHIMA YOJI
IPC: H01F7/04
Filed: 1990-11-09
Abstract: PURPOSE:To bring a movable armature, even if it is tilted, into one point contact with a magnetic frame for stabilizing the suction force thereof to enhance the reliability by a method wherein a spherical projection is formed at least on one contact part between the magnetic frame and the movable armature. CONSTITUTION:Within a title releasable type electromagnetic device wherein a magnetic flux 11 is cancelled by the excitation of an exciting coil 5 so as to release a movable armature 3, at least one contact surface between a fixed armature 1 and the movable armature 3 is formed into a spherical projection A. For example, the spherical projection A is formed on the central bottom surface of the magnetic frame 1 with the other parts structured as usual. In such a constitution, wherein the spherical projection A is formed on the central bottom surface side of the magnetic frame 1, the movable armature 3 even if it is tilted, is constantly brought into one point contact with the magnetic frame 1 to stabilize the magnetic channel thereby bringing about a stable suction state of the movable armature 3.
Patent JP-H02336-A (JP)
Title: Semiconductor device
Inventor: TONISHI SHIGEJI
IPC: H01L21/3205
Filed: 1988-12-01
Abstract: PURPOSE:To effectively check migration by providing a substrate surface with a check pattern which is composed of the same metal as the wiring of semiconductor circuit, and electrically independent of the semiconductor circuit, and has wedge type constriction parts. CONSTITUTION:On a semiconductor substrate, a metal wiring 10 having constrictions 11 partially is arranged as a check pattern, in two perpendicular directions so as to coincide with the wiring direction of semiconductor circuit on the substrate. The wiring 10 is constituted by using the same metal as the metal used for the wiring of the semiconductor circuit, and forms an electrically independent pattern. The width of the constriction part 11 is made equal to or less than the minimum line width of the semiconductor circuit. Thereby stress concentration occurs at the constriction parts 11, and at the same time current density also increases, so that migration can be checked in an accelerated state by observing said part.
Patent JP-H10147903-A (JP)
Title: Pavement material and its manufacture
Inventor: AOKI HARUO
IPC: E01C5/22
Filed: 1996-11-18
Abstract: PROBLEM TO BE SOLVED: To reduce the manufacturing cost by fixing a lower layer section made of a thermoplastic resin to the back side of a surface layer section bound with a granular rubber material. SOLUTION: Waste tires are crushed to form a granular rubber material 4 having the required grain size. A waste material such as agricultural house sheets is utilized to form a granular thermoplastic resin 5. A mixture of the rubber material 4 and a binder made of a thermosetting resin such as a urethane resin is injected into a molding die having the prescribed shape to form a surface layer section 2 having the required thickness. A mixture of the thermoplastic resin 5 and a binder is injected on the surface layer section 2 to form a lower layer section 3 having the required thickness. The molding die is further heated, pressure is applied in the laminating direction of the surface layer section 2 and the lower layer section 3 for a fixed time, and the surface layer section 2 and the lower layer section 3 are connected to form a pavement material 1A.  Since wastes such as the waste tires are utilized, the manufacturing cost can be reduced.
Patent JP-H09144706-A (JP)
Title: Actuator
Inventor: URAI TAKAHIRO
IPC: F15B13/044
Filed: 1995-11-24
Abstract: PROBLEM TO BE SOLVED: To shorten a total length by providing a first and a second magnetostrictive members provided inside the first and the second hole parts of a base body and a restriction means brought into contact with one end side outside the first magnetostrictive member and forming constitution in which an actuator stroke amounts to the elongation total of both magnetostrictive members. SOLUTION: A first hole part 3a in which a first super-magnetostrictive member 1 is internally provided in one end surface of a tube 3 and a second hole part 3b in which a second super-magnetostrictive member 2 is internally provided in the other surface thereof are formed in parallel with each other. When a magnetic field is applied to the super- magnetostrictive members 1, 2 to generate elongation, a tube 3 is moved so far as the elongation of the super-magnetostrictive member 1 in the direction opposite to a fixing wall 4 by the elongation of the super-magnetostrictive member 1.  Further, the super-magnetostrictive member 2 is moved so far as the elongation of the super-magnetostrictive member 1 in the direction opposite to the fixing wall 4 together with the tube 3, and the same elongation as that of the super-magnetostrictive member 1 is also generated in the super-magnetostrictive member 2, and the direction is shown by an arrow A2. Accordingly, the stroke of an actuator amounts to the total of the elongation of the super-magnetostrictive members 1, 2. Therefore, an equal stroke quantity can be obtained by about half length as compared with one in which one super-magnetostrictive member is used.
Patent JP-H10136554-A (JP)
Title: Circuit breaker
Inventor: TOSAKA HIROAKI
IPC: H01H71/44
Filed: 1996-10-31
Abstract: PROBLEM TO BE SOLVED: To keep power supplies to important loads as possible with a circuit breaker to which a plurality of branch circuits are connected on its load side even if an overcurrent is applied. SOLUTION: An advance operation circuit 7 which generates an advance operation signal α when a main circuit current detected through a current transformer 1 exceeds a certain predetermined value and a branch circuit control circuit 8 which receives the advance operation signal α and outputs branch circuit tripping signals β1 , β2 ,... to branch circuit breakers 41-43 in a predetermined order. If a main circuit current approaches a hazardous zone, unimportant load circuits are successively cut off and the tripping operation of a main circuit breaker is avoided to keep power supplies to important loads.
Patent JP-H08148993-A (JP)
Title: Gate control digital phase shifter
Inventor: TANAKA YOSHIAKI
IPC: H03L7/00
Filed: 1994-11-15
Abstract: PURPOSE: To provide the device generating a signal of the same frequency with a different phase as a reference input signal. CONSTITUTION: In the phase locked loop which is made up of a means 1 frequency-dividing an input signal by a frequency division ratio N, a means 4 frequency-dividing an output signal of a frequency variable oscillator 3 by a frequency division ratio M, and a phase comparator 2 comparing phases of two frequency division outputs to control the frequency variable oscillator 3, and the means 4 frequency-dividing the signal by the frequency division ratio M is provided with a means recognizing lapse of frequency division, and in which the frequency division ratios N, M differs very slightly, which is provided with a sub phase locked loop comprising a 2nd phase comparator 6 and a 2nd frequency variable oscillator 7 controlled by the phase comparator 6, and the 2nd phase comparator 6 being the component of the sub phase locked loop compares the phases of output signals of the 1st and 2nd frequency variable oscillators 3, 7, and whether or not phase comparison is executed is controlled by an output signal of the means recognizing the lapse of the frequency division provided to the frequency division means 4 with the frequency division ratio M in the main phase locked loop.
Patent JP-H04176847-A (JP)
Title: Manufacture of aluminum foil for electrode of electrolytic capacitor
Inventor: TANAKA KOICHI
IPC: H01G9/04
Filed: 1990-11-09
Abstract: PURPOSE:To manufacture Al foil for the electrode of an electrolytic capacitor having high capacitance by successively executing each treatment of heating, cooling and rolling to the ingot of an Al material contg. relatively large amounts of impurities such as Fe and Si under specified conditions. CONSTITUTION:The ingot of an Al material having, by weight, >=99.8% Al purity and contg. 0.001 to 0.07% Fe, 0.001 to 0.07% Si with inevitable impurities is heated to >=550 deg.C, preferably to about >=580 deg.C. Next, this ingot is cooled to <=250 deg.C and is thereafter rolled at a temp. not exceeding 300 deg.C into Al foil. In this way, the Al foil for the electrode of an electrolytic capacitor having high capacitance can be obtd. by the use of an inexpensive Al material.
Patent JP-H02151540-A (JP)
Title: Acceleration slip preventing device for vehicle
Inventor: YOSHIDA MASATO
IPC: B60W10/188
Filed: 1988-12-02
Abstract: PURPOSE:To improve acceleration enabling a slip control to be started always in the optimum timing by controlling a drive wheel in accordance with its slip amount so as to start a drive torque control when an engine is placed in a load condition exceeding the predetermined low load condition. CONSTITUTION:In the case of a vehicle provided with an engine having in an intake pipe 22 a main throttle valve 23 operated by an accelerator pedal and subthrottle valve 24 controlled in its opening by a motor 24M with a control signal from a traction controller 15, it reduces drive torque of a drive wheel by adjusting an opening of the subthrottle valve 24 in accordance with a slip amount DV calculated in accordance with a difference between a drive wheel speed VF and a non-drive wheel speed VB. Here an engine load condition detecting means is provided, when a load condition of the engine exceeds the predetermined low load condition, the drive wheel is controlled in accordance with its slip amount so as to start a drive torque control.
Patent JP-H02150878-A (JP)
Title: Fixing device
Inventor: NAKATANI SHIGEHIRO
IPC: G03G15/20
Filed: 1988-12-02
Abstract: PURPOSE:To prevent toner from sticking on the surface of a rotary body on the side where the rotary body is pressed against a toner image by providing a 2nd blade for removal which prevents toner falling from a 1st blade for removal from sticking on the rotary body. CONSTITUTION:This fixing device has the 1st blade 5 for removal which contacts the surface of the rotary body 3 on the side where the rotary body is pressed against the toner image and removes toner sticking on the surface of the rotary body 3 and the 2nd blade 51 for removal which is positioned adjacently to the 1st blade 5 for removal in the rotating direction of the rotary body to contact the surface of the rotary body 3 and prevents the toner falling from the 1st blade from sticking on the rotary body. Namely, when the toner sticking on the side of the 1st blade in the rotating direction of the rotary body falls, the 2nd blade forms a separation path to prevent the toner from sticking on the rotary body side. Further, if the toner sticks, the 2nd blade removes the sticking toner. Consequently, the print staining of the fixing device is reduced and the toner is prevented from sticking, so the durability of the fixing device is improved.
Patent JP-H01147079-A (JP)
Title: Laser beam machining method
Inventor: NISHIKAWA YUKIO
IPC: B23K26/351
Filed: 1987-12-03
Abstract: PURPOSE:To remove the vapor-deposited metal layer of a one-side vapor- deposited film without damaging the base film by projecting a solid laser beam on the vapor-deposited layer while bringing a transparent cooling member into contact with the base film side. CONSTITUTION:When a one-side vapor-deposited film 13 is travelled from an unwinding roll 14 to a rewinding roll 15, a film 16 for cooling is brought into contact with the base film side of the film 13 and travelled in synchronism with the film 13. The film 16 transmits solid laser beams and is endlessly turned by guide rolls 17. Laser beams 10 from YAG laser 9 are projected on the travelling film 13 through a reflecting mirror 11 and a condenser 12 to selectively remove the vapor-deposited metal layer of the film 13. Since the film 16 for cooling radiates heat generated by removing the metal layer, the damage of the base film can be avoided.
Patent JP-H05141242-A (JP)
Title: Pipe for engine cooling water
Inventor: NAKAGAWA KAZUHIKO
IPC: F16L9/14
Filed: 1991-11-21
Abstract: PURPOSE:To provide an engine cooling pipe excellent in heat resistance and corrosion resistance by forming a pipe part, having ring-shaped recessed parts on the peripheral surface, of glass cloth impregnated with heat resistant resin, and fitting brackets, for mounting the pipe part on an engine, into the recessed parts. CONSTITUTION:A pipe part 2 of a pipe 1 for engine cooling water is manufactured by blow molding a glass cloth, impregnated with heat resistant resin, to provide ring-shaped recessed parts 3, 4 on the peripheral surface. Brackets 5, 6 manufactured by a steel plate or the like are fitted to the recessed parts 3, 4. By the constitution thus obtained, the pipe for engine cooling water is excellent in corrosion resistance and heat resistance.
Patent JP-H02152312-A (JP)
Title: Manufacture for piezoelectric resonating device
Inventor: ANDO AKIRA
IPC: H03H3/02
Filed: 1988-12-02
Abstract: PURPOSE:To decrease degradation and variance in the characteristic of a resonating device by applying ceramic paste, which contains piezoelectric ceramics as a main body, so as to cover paste for internal electrode. CONSTITUTION:The paste is prepared by mixing powder body, which is composed of the piezoelectric ceramics, synthetic resin and a solvent and applied on a polyethylene terephthalate film. Then, this paste is dried and ceramic green sheets 1 and 2 are obtained. Next, electrode paste 3-8 is printed and dried on the sheets 1 and 2 and the ceramic paste, which contains piezoelectric ceramic powder as the main body, is printed on electrode paste 5 and 6 on the sheet 2 so as to cover this electrode paste. After ceramic paste 11 is dried, the sheets 1 and 2 are laminated, pressed and unitedly sintered. Then, prescribed polarization treatment is executed to such a sintered body and the piezoelectric resonating device is obtained.
Patent JP-H08167784-A (JP)
Title: Chassis structure of electronic apparatus
Inventor: KUNO TOSHIYUKI
IPC: H05K7/04
Filed: 1994-12-09
Abstract: PURPOSE: To increase amount of parts to be housed by providing a ceiling plate and a bottom plate of a chassis for housing a unit which does not require cooling in parallel to or almost parallel to the gradient for guiding the air in the air inlet duct and the air exhaust duct. CONSTITUTION: A housing rack 12 comprises a plurality of stages of a chassis 14 housing an electronic apparatus unit 13. A chassis 15 houses a closed unit 16 which does not require cooling of a maintenance panel unit or the like housed in the intermediate stage thereof. The ceiling plate and bottom plate of the chassis 15 have the gradient parallel or almost parallel to the gradient for guiding the air of the air inlet duct 18 of the upper electronic unit 13 and the air exhausting duct 19 of the lower electronic unit 13 and are formed to rise when it goes to the rear surface side from the front surface side. The chassis 15 can be set higher as much as the height of the duct to increase the internal volume of the chassis 15, resulting in the increase of parts housing volume.
Patent JP-H01146984-A (JP)
Title: Sticking inhibitor of particulate material
Inventor: MATSUTANI HIROSHI
IPC: C09K3/00
Filed: 1987-12-03
Abstract: PURPOSE:To obtain a sticking inhibitor capable of increasing the lubricity between particles themselves and improving the fluidity thereof, by incorporating a higher fatty acid (salt). CONSTITUTION:0.01-1wt.% 10C or higher straight-chain or branched higher fatty acid (e.g., capric acid) and/or its salt (e.g., sodium stearate), as a sticking inhibitor, is added to a particulate material, such as particulate coal, ore or limestone, contg. particles having a particle size of up to 0.5mm in an amt. of at least 10wt.%.
Patent JP-H07155426-A (JP)
Title: Mah-jongg game machine
Inventor: SAKAMOTO MASANORI
IPC: A63F7/02
Filed: 1993-12-08
Abstract: PURPOSE:To enable all players to fully enjoy the amusement of a game impartially regardless of the level of mah-jongg knowledge of the players. CONSTITUTION:A piece judging means 243 judges whether or not the combination of the present hand pieces are in piece hearing conditions where any one is completed among the roles of plural complete sets being predetermined, and the piece judging means 243 judges that it is in piece hearing condition, a suicidal piece judging means 244 judges which mah-jongg piece it should next put a batted ball into the ball inlet corresponding to so as to complete the role of a complete set. A ball inlet indication means (for example, a winding ball indication lamp 140) indicates the ball inlet port into which to enter a ball, based on the judgment result of the suicidal piece judging means 244.
Patent JP-H08147394-A (JP)
Title: Automatic transaction device
Inventor: IKEDA KAZUHIRO
IPC: G06Q40/00
Filed: 1994-11-16
Abstract: PURPOSE: To continue a transfer transaction even when change is insufficient. CONSTITUTION: When a cash transfer is selected by a customer, whether the change within a cash storehouse is insufficient or not is detected by a change insufficiency detection part 1. Also when change is insufficient as a result of this detection, a processing is not discontinued, the bringing of a customer's card or bankbook by the customer is imagined when the notification to the customer is performed by a change short notification part 2 and the payment of the change to the account of the customer is urged. As a result, when the customer does not bring his card or bankbook or when he does not have his own account, the processing is disconnected, but if he brings the card, the processing is continued.  Namely, the transfer processing is performed in a transfer transaction processing part 3 as usual, and when the change is given, the change is paid to the account of the customer to be a transfer requesting person by a payment transaction processing part 4.
Patent JP-H10140435-A (JP)
Title: Ring gate of twisting disk for twisted selvageforming apparatus
Inventor: WAHHOUD ADNAN
IPC: D03C7/04
Filed: 1997-11-10
Abstract: PROBLEM TO BE SOLVED: To make difficult for a overlocking yarn guided through this ring gate of a twisting disk be broken, by forming an inlet and an outlet for the overlocking yarn so as to have a shape of a specific imaginary cone having the centerline of the ring gate as its centerline. SOLUTION: An inlet 4 and an outlet 5 for overlocking yarns of this ring gate are formed in a shape of an imaginary cone having the centerline 3 of the ring gate as its centerline. The imaginary cones are formed by common tangent lines between two circular arcs, i.e., brims 7, 8 each having a curvature radius R1 and a narrow-necked part 9 forming a yarn passage 6 and having a curvature radius R2 and also formed by annular imaginary lines around the centerline 3, and have opening angles (conical angles) of >=90 deg..
Patent JP-H08161227-A (JP)
Title: Information processor
Inventor: NISHIDA HIDEJI
IPC: G06F12/08
Filed: 1994-12-12
Abstract: PURPOSE: To accelerate a processing speed by judging the address area of an access destination before performing access to a cache memory in a CPU. CONSTITUTION: In the case of performing the access from the CPU 26 to the cache memory 30, before performing the access, the address area of the access destination is judged in an access destination address area judgement circuit 28. Thereafter, a cache access address is outputted from the CPU 26 to the cache memory 30 and an access destination address area judgement signal NCA for indicating the address area of the access destination is transferred to the selector 35 of the cache memory 30. Then, in the cache memory 30, the cache access address is fetched, a cache enabling area/disabled area display register 33 is referred to and whether or not the address of the access destination of the CPU 26 is a cache enabling area is judged.
Patent JP-H04177895-A (JP)
Title: Device for identifying sort of chip
Inventor: KASHIWAGI YASUHIRO
IPC: H05K13/04
Filed: 1990-11-13
Abstract: PURPOSE:To identify the sort of a chip simply by landing the electrode sections of the chip held by a nozzle by air-suction on electrode bodies, and by inspecting the characteristics of the chip, before the chip is mounted on a board. CONSTITUTION:Before chips P are mounted on a board 12, the electrode bodies 22a, 22b of a sort identifying device 20 are positioned at a mounting position B by driving an X-Y table 11. Then, chips P in the parts feeder 7 on a moving bed 6 are taken up by a nozzle 3 by air-suction in order, and transferred above a table 21. And by letting the nozzle 3 go down, the electrode sections Ka, Kb of a chip P are landed on the electrode bodies 22a, 22b on the table 21, characteristics of the chip P such as the resistance value or capacitance are inspected, and its sort is identified. This prevents a different sort of chip P from being mistakenly mounted on the board 12.
Patent JP-H08160964-A (JP)
Title: Case body structure and its working method
Inventor: FUKUSHIMA NORICHIKA
IPC: G10K11/16
Filed: 1994-12-12
Abstract: PURPOSE: To prevent the resonance by vibration, strike or contact from inside and out of a case body and to improve the finishing of the appearance by integrally molding on outside layer molded of a plastic material and an inside layer molded of a material having the higher vibration attenuatability than the outside layer on the inside surface. CONSTITUTION: The case body 20 of a light source for a microscope is composed by integrally molding the outside layer 21 molded of a polycarbonate resin and the inside layer 22 molded of a polyolefin based thermoplastic elastomer having the vibration attenuatability higher than the vibration attenuatability of the polycarbonate resin. An aperture 20a for mounting a cooling fan and screw mounting holes 20b and formed on the front surface of the case body 20 and an aperture 20c for heat radiation is formed on the front surface, Further, an aperture 20d for conducting the illuminattion light from the light source of inside is formed on the left side surface and the base is provided with an aperture 20e for installing the light source, etc., into the case body.  Fasteners 24 for mounting a cap member 23 molded of the same polycarbonate resin as the polycarbonate resin of the outside layer 21 are formed in this aperture 20e.