baber/WOPTO huggingface dataset:
Patent JP-H1118621-A (JP)
Title: Heating device for aquarium fish tank
Inventor: YOSHIDA NOBUYUKI
IPC: H05B3/20
Filed: 1997-06-30
Abstract: PROBLEM TO BE SOLVED: To provide a heating device for an aquarium fish tank, causing no abnormal heating when the tank is broken and capable of accurately controlling water temperature by shaping it into a plate, with a heating element inside, to support the tank. SOLUTION: This heating device 1 for an aquarium fish tank is obtained by shaping it into a plate, with a heating element 2 inside, to support the tank T. The heating element 2, to be heated to a given temperature, is preferably a planar element with an automatic temperature controlling function. In particular, the layers 3 and 4 which constitute the surface and back sides of the heating device 1 hold the heating element 2 in-between, and may be made of an elastic material for an insulator function to absorb fine vibration generated by, e.g. a pump for the tank, or made of a frictional material for a function to prevent the tank from moving in an earthquake.
Patent JP-S6432546-A (JP)
Title: Clock disconnecting circuit
Inventor: YAGYU MIKITO
IPC: H03K5/19
Filed: 1987-07-28
Abstract: PURPOSE:To improve the operating efficiency of the circuit by detecting whether or not a clock signal from a timing extraction circuit is a prescribed level or below, using the detected output signal as a control voltage so as to control the amplifier circuit of a single ended type thereby quickening the operation of the titled clock disconnecting circuit. CONSTITUTION:An output clock signal recovered by a timing extraction circuit 1 of the timing disconnecting circuit is extracted, and when the clock signal reaches a prescribed level or below, an output voltage V of a peak detecting circuit 2 of a clock disconnection control circuit 16 is lower than a reference voltage Vref of a comparator 3. In response to the result of comparison of the comparator 3, a transistor TR5 is operated. Through the operation of the TR5, the voltage drop of a resistor 6 of a single end type amplifier 15' is increased to control the base of a TR20 to 0V thereby cutting off the TR20. Then the operation of the clock disconnecting circuit is quickened.
Patent JP-S57112980-A (JP)
Title: Electric resistance welding method
Inventor: KAWAHARA KENJI
IPC: B23K11/10
Filed: 1980-12-29
Abstract: PURPOSE: To ease the restrictions of welding conditions and to improve welding quality in welding metallic plates of the same kind and a large difference in thickness by inserting a cope plate between the thinner metallic plate and an electrode.  
     CONSTITUTION: A metallic plate 1 of a small thickness T 1  and a metallic plate 2 of the same kind and of large thickness T 2  are superposed and are held in place between electrodes 4 and 5, thence the contact faces 1a, 2a of the plates 1, 2 are stuck by melting. At this time, a cope plate 3 of thickness T 3  is inserted between the electrode 4 on the thinner plate 1 and the plate 1. The thickness T 3  of the plate 3 is made equal to or smaller that the thickness T 1  of the thin plate 1 so that the ratio between the sum (T 1 +T 3 ) of the thickness T 1  of the plate 1 and the thickness T 3  and the thickness T 2  of the plate 2 attains about ≤1:3. Thereby, the welding conditions depending upon the differences in plate thicknesses are eased considerably. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S6249343-A (JP)
Title: Dimming device for exposing lamp
Inventor: KAMEI CHIKA
IPC: G03B27/72
Filed: 1985-08-28
Abstract: PURPOSE:To attain stable dimming of an exposing lamp by controlling the conducting angle of a thyristor by a trigger pulse generated in accordance with a value obtained by dividing a difference value between specific data read out from a table and digital data obtained from a conversion means by a prescribed value every prescribed time. CONSTITUTION:Light radiated from the exposing lamp 4 is detected and transmitted by a glass fiber 4 and then detected by a photodiode 61 arranged on a position separated from the lamp 4 and the detected light is converted into a current value. The optical current generated from the photodiode 61 is converted into a voltage value by a current/voltage conversion circuit 62, amplified by an amplifier 64 and sent to an A/D converter 65 and the converted digital data are sent to a microcomputer 31. The mirocomputer 31 actuates a timer function included in itself in accordance with the value obtained by dividing the difference value between the level of the input data and the level of reference data corresponding to te setting of exposuer by '2' (H). Consequently, a trigger pulse is generated and the conducting angle of the thyristor 22 is controlled by the trigger pulse to control a voltage impressed to both the ends of the exposure lamp 4.
Patent JP-H0359435-A (JP)
Title: Wind tunnel and method of aerodynamic sur- face test
Inventor: ROBAATO ERU BAATON
IPC: G01M9/02
Filed: 1990-07-17
Abstract: PURPOSE: To conduct an aerodynamic test in a hypersonic wind tunnel by forming a cylindrical wind tunnel, and circulating gas along the periphery thereof. CONSTITUTION: A model 76 is disposed at a testing area 74, and a rotor 50 is rotated in the direction of arrow 102, so that gas starts flowing in a free flow recovery area 104, and the area 104 allows gas after passing through a mixing area 106 to be subjected to smooth compression and reacceleration. Next, compressed gas is divided into two by a spoon-like face 86, one of them is suctioned in an intake area 108, and the other flows in a bypass area 110. Herein, an amount of gas suctioned in the area 108 is controlled by a radial directional position at the tip end part 88 of the face 86, and in ideal conditions, about 75% of gas flows in the area 108 and about 25% flows in the area 110.  Then, the area 110 forms an elongated cylindrical nozzle and accelerates a stream of the bypass gas for cooling gas, and a stream of the gas passed through the area 108 comes through an inlet impulse wave part and then is dispersed by the nozzle 90 to enter in a test area 74, and further it passes through a model 76 and flows in an exhaust area 114, and is mixed with gas from the area 110 to then be re-entered in the area 104.
Patent JP-H0636711-A (JP)
Title: Projection type television set
Inventor: NAKANO YUZO
IPC: G02B7/02
Filed: 1992-07-16
Abstract: PURPOSE:To prevent the dew condensation on the surface of a lens by arranging a heating wire on the inner face of a lens barrel made of aluminum. CONSTITUTION:A heating wire 7 is arranged on the inner face of a lens barrel 5 made of aluminum. The temperature difference between the front and rear of a lens 6 is eliminated by the Joule's heat of the heating wire 7, and no dew condensation is generated on the surface of the lens 6. An image cast on the fluorescent screen of a cathode-ray tube 1 is expanded and projected by the lens 6 via a coolant 4, and a sharp image is formed on the screen even in winter.
Patent JP-H0637337-A (JP)
Title: Semiconductor integrated circuit
Inventor: YOSHIDA SHINYA
IPC: H01L29/861
Filed: 1992-07-16
Abstract: PURPOSE:To enable manufacture of a semiconductor integrated circuit by a relatively general semiconductor integrated circuit manufacturing process and to improve the precision of a divided voltage. CONSTITUTION:In a voltage dividing circuit 10, junction type diodes D1 to Dn totaling (n) are connected in series so that forward current directions thereof are all the same. Besides, reference voltages VREF are connected to the opposite ends of the series connection of the diodes so that they have directions reverse to the forward current direction of the connection. Divided voltages can be obtained from terminals V0 to Vn. Voltage division of the reference voltage VREF into the divided voltages is executed by using the voltage-current characteristic of the junction type diodes D1 to Dn. These junction type diodes D1 to Dn can be built in by a general semiconductor integrated circuit manufacturing process. Besides, the characteristics thereof are stable relatively.
Patent JP-H0637116-A (JP)
Title: Manufacture of semiconductor device
Inventor: ONO KATSUJI
IPC: H01L21/306
Filed: 1992-07-16
Abstract: PURPOSE:To provide a semiconductor device manufacturing method by which an ohmic electrode the electric resistance of which is reduced at its boundary can be formed. CONSTITUTION:An n-type GaAs layer 32 is formed on a semi-insulating GaAs substrate 31 as a first semiconductor layer by adding Si to the layer 32 as an n-type impurity by ion implantation or the CVD method. Then a WSi gate electrode 33 and SiON masks 34 with windows at a source and drain ohmic electrode forming sections A are formed on the layer 32. After forming the mask 34 and the surface of the first semiconductor layer 32 is etched with a gas, a second semiconductor layer of the same conductivity type is formed on the exposed new surface S of the layer 32. By performing the gas etching so that the same n-type impurity as that of the layer 32 can remain and accumulate on the new surface S of the layer 32, a depletion layer caused by a lattice defect at the boundary between an ohmic junction layer selectively formed on the new surface S and the substrate 31 or remaining impurities in a vacuum are offset and the electric resistance at the boundary is reduced.
Patent JP-2000299344-A (JP)
Title: Flip-chip structure and manufacture thereof
Inventor: RYU BUNSHUN
IPC: H01L21/60
Filed: 1999-07-02
Abstract: PROBLEM TO BE SOLVED: To tailor a flip-chip structure and a method of manufacturing the same for a conventional carrier structure and packaging step, without effecting a complicated lithography etching and electroplating step, by arranging a conductive material on a bonding pad and arranging a metal ball on this conductive material. SOLUTION: A bonding pad 32 is formed on a chip 30, and after forming a barrier film 34, the pad 32 is exposed. As the material of the pad 32, aluminum is, e.g. used, and the pad 32 is connected to wiring and an electrical element on the chip 30. A conductive resin is used as a conductive material 36 formed on the pad 32. A copper metal ball 38 is arranged on the material 36, and a bump is formed of the material 36 and the ball 38. A plated film 39 is formed on the ball 38 by electroplating the ball 38 in advance, to thereby improve solderability, resistance to oxidation, and resistance to corrosion in subsequent steps.
Patent JP-S6168568-A (JP)
Title: Low/high temperature handler employing electronic cooler
Inventor: TOKUNAGA MASAKI
IPC: F25B21/02
Filed: 1984-09-12
Abstract: PURPOSE:To enable the setting temperature at a low/high temperature testing of an IC in a short time and at a low cost, by providing an cooling mechanism for absorbing heat generated from a Peltier element during the cooling and an air curtain for preventing dew formation during the cooling. CONSTITUTION:An IC4 to be measured fed from an IC supply magazine 11 is cooled by a cooling effect of a Peltier element 5 of a cooling section 3 and a temperature sensor 6 detects the temperature of the cooling section 3. A water cooling mechanism 7 absorbs heat generated during the cooling due to the Peltier element 5 and the time is reduce until the heat reaches the set target value. On the other hand, an air of a fixed pressure is fed to an air jet port 9 and an air curtain shuts down the perimeter of the cooling section 3 to eliminate temperature difference between the cooling section 3 and the perimeter thereof, which prevents dew formation at the cooling section 3. Then, a temperature characteristic test is performed for the IC4 being measured with a test head 10 of a measuring section 2 and thus, it is distributed to an accepted product holding magazine 14 and a rejected project holding magazine 13.
Patent JP-H1030146-A (JP)
Title: Aluminum alloy sheet for automotive bumper and automotive bumper
Inventor: TAKAGI YASUO
IPC: C22C21/06
Filed: 1996-07-18
Abstract: PROBLEM TO BE SOLVED: To increase the strength of an alloy sheet and furthermore to improve its formability by prescribing the compsn. of elements and the ratio of a subgrain structure. SOLUTION: This alloy sheet is composed of, by weight, 3.0 to 4.0% Mg, 0.5 to 1.0% Mn, 0.05 to 0.3% Zr, and the balance Al. Mg imparts required strength to a bumper. Mn imparts strength thereto and furthermore prevents stress corrosion cracking therein. Zr has effects of disturbing recrystallization at the time of finish annealing and allowing a subgrain structure to remain. By allowing this subgrain structure to remain, strength moreover improves, but with regard to formability as well, the volume ratio thereof is regulated to 50 to 90%. Then, for obtaining proof stress after bumper forming by cold working, the proof stress of the alloy sheet as the stock is required to be regulated to 140 to 170N/mm<2> .
Patent JP-H0744984-A (JP)
Title: Device for dubbing video disk
Inventor: SAITO YOSHITAKA
IPC: G11B7/00
Filed: 1993-07-30
Abstract: PURPOSE:To shorten the time required for dubbing/transmitting program material by increasing the number of heads and input/output signal processing systems and simultaneously reproducing/recording plural positions on a disk. CONSTITUTION:In a reproducing side VDR 1, the dubbing material is divided equally into five parts on the disk, and five pieces of heads A, B, C, D, E are set on the leading tracks of respective parts divided equally. Then, by specifying the frame numbers of respective tracks, respective heads are set to prescribed positions. On the other hand, in a recording side VDR 2 also, five pieces of heads are arranged similarly. From such a state, the reproduction are started by respective heads simultaneously, and the signals are sent to the recording side VDR as shown in the figure, and are recorded. By such a method, the time required for dubbing is reduced to nearly 1/5.
Patent JP-H0355037-A (JP)
Title: Apparatus for positioning of revolution in x-ray photographing apparatus
Inventor: TAMURA JOICHI
IPC: A61B6/00
Filed: 1989-07-22
Abstract: PURPOSE:To make it possible to control surely positioning by means of a torque motor with a small capacity by providing an electromagnet on one of a movable part or a fixed part connected with the torque motor and a stopper with which the electromagnet is brought into contact on another one of them. CONSTITUTION:At least one of an X-ray tube or an X-ray treating part is provided with free rotation on an arm through a relatively positioning apparatus 30. In the rotatively positioning apparatus, a rotating cylinder 31 connected with the X-ray tube is connected with a torque motor 35 through a speed reducer 32 and a brake 33 with a rotating shaft and an electromagnet 37 is set on a (movable) rotating cylinder and a stopper 39 with which the electromagnet is brought into contact is fixed on the apparatus main body 38 side of a fixed part. When the electromagnet is brought into contact with the stopper, as the electromagnet is pressed on the stopper by the torque of the torque motor and it is attracted to the stopper by the magnetic force of the electromagnet, this contact condition can be strongly held by the torque motor with a small capacity and a positioning control can be surely performed.
Patent JP-H0476865-A (JP)
Title: Digital dubbing system
Inventor: SEKI TAKAHITO
IPC: G11B20/10
Filed: 1990-07-18
Abstract: PURPOSE:To connect dubbing using a digital VTR by a comparatively long transmission line by executing an error correction processing to a regenerated digital video signal and a regenerated digital sound signal, synthesizing those signals and transmitting them. CONSTITUTION:The compressed digital video signal is supplied to a mixing circuit 216 after adding a parity in a parity generating circuit 213. Among regenerative data correcting error in an error correcting circuit 223, the digital sound signal and the sub data supplied to the mixing circuit 216 after adding the parity in the parity generating circuit 213. The mixing circuit 216 mixes the digital video signal, digital sound signal and sub data, and a synthesized digital data is supplied to a regenerative data output terminal 231 for dubbing. Then, the synthesized digital data is transmitted to a recording data input terminal 332 for dubbing of a second digital VTR 300 connected to the regenerative data output terminal 231 for dubbing.
Patent JP-S5979937-A (JP)
Title: Gas discharge panel
Inventor: SHINODA TSUTAE
IPC: H01J11/14
Filed: 1982-10-28
Abstract: PURPOSE:To reduce the arranging pitch of discharge sustaining electrodes and easily provide the high resolution of a face discharge-type gas discharge panel by making the discharge sustaining electrodes with paired comb tooth sections in an electrode structure with individual comb tooth sections engaged with each other. CONSTITUTION:Discharge sustaining electrodes 32, 33 with adjacent and paired comb tooth sections 32a, 33a are arranged face to face on a lower glass substrate 31 functioning as an electrode support substrate so that individual comb tooth sections 32a, 33a are engaged with each other. Discharge sustaining discharge cells Sc are constituted between the comb tooth section 32a of one discharge sustaining electrode 32 and the portion with no comb tooth section of the other discharge sustaining electrode 33, for example. Writing electrodes 35 are arranged on them through a thick dielectric layer 34 made of low-melting point glass in a direction crossing individual discharge sustaining electrodes 32, 33, and writing discharge cells Wc are constituted corresponding to each intersection with either one of the discharge sustaining electrodes 32, 33 respectively. In addition, said writing electrodes 35 are coated with a surface layer 36.
Patent JP-H0361752-A (JP)
Title: Pulley
Inventor: BUARERII ANATORIEBUICHI IBUANO
IPC: E21B19/00
Filed: 1989-07-21
Abstract: PURPOSE: To facilitate replacement of a lining insert without removing a lining from a pulley by securing removal of a flexible link from a through hole having width of a groove extending to the inside of the through hole of each of the inserts. CONSTITUTION: Each insert has a groove 8 ending in the inside of a through hole 5 on the outside of a pulley, and the groove 8 has width large enough to draw a flexible link element 6 through the groove from the hole 5. The defected insert 4 is lifted up to height of an outer ring flange of the pulley by loosening a rope 7 as a skip of a lifting mechanism is lowered below a zero level mark. Thereafter, the flexible link 6 is also loosened by an extension mechanism and thereafter, the damaged insert 4 is removed to be replaced with a new insert. Then the insert to be replaced with is drawn from a contact range with the lifting rope, after the defected insert 4 is replaced, the flexible link 6 is tightened, a correct position is checked, the rope 7 is arranged on a support surface of the insert 4, and the lifting mechanism is started.
Patent JP-H0536765-A (JP)
Title: Prober
Inventor: KUROKAWA EIJI
IPC: H01L21/66
Filed: 1991-07-31
Abstract: PURPOSE:To give proper overdrive amounts and to easily control a probe card by a method wherein the overdrive amounts of the probe card are compared by detecting needle traces on a pad with a camera. CONSTITUTION:A needle trace formed on an electrode pad on a semiconductor chip is recognized by using a camera 2; an image signal which has been picked up by using the camera 2 is processed in an image processing control part 6 and a binary-coding part 7; the signal is stored in a storage part A 10 by the instruction of an addressing part 8. Needle traces after contact operations of several times are stored in a storage part B 11 in the same manner; a comparison image is formed in a comparison part 12 on the basis of data which have been read out from the storage part A 10 and the storage part B 11 by the instruction of an image instruction from a prober control part 5. On the basis of the comparison image, the similarity degree of two stored images is recognized. According to this judgment result, the drive command of a stage 3 is issued from the prober control part 5. Thereby, it is possible to automatically correct the overdrive of a prober.
Patent JP-H02177193-A (JP)
Title: Semiconductor memory
Inventor: SUU-IN CHIYO
IPC: G11C11/4097
Filed: 1989-07-25
Abstract: PURPOSE: To stabilize a sensing operation by making adjacent bit lines to be of stand-by state and decreasing them and their couplings. CONSTITUTION: After electric charges stored from memory cells M321 -M32 K are transmitted to bit lines -BLMI--BLMK, MOS transistor -54 enters ON state by a signal ϕ L and a sense amplifier 40M operates sensing. At this time, the sense amplifier 40M and its adjacent sense amplifiers 40U and 40D are not activated due to a signal ϕL and its reversed signal -ϕL. Therefore, bit lines -BLM1 --BLMK and their adjacent bit lines BLD1 -BLDK are in stand-by state, namely, each of them is stabilized with a pre-charge voltage. Consequently, malfunctions in data reading with coupling capacitance are decreased at the time of sensing operation.
Patent JP-S6083368-A (JP)
Title: Two-terminal semiconductor device
Inventor: KUROSU TOSHIKI
IPC: H01L29/74
Filed: 1983-10-14
Abstract: PURPOSE:To enable to improve the breakover voltage of the titled semiconductor device by a method wherein a J3 junction end face is provided on the whole surface of an electrode (main surface). CONSTITUTION:An NE layer, a PB layer and an NB layer are formed on a P type semiconductor substrate 1 having the specific resistance of 40-120OMEGA/cm or thereabout by diffusing from both surfaces N type impurities such as phosphorus, arsenic and the like of 5X10<17>-5X10<18>atom/cm<3> in surface density, and forward and inverse withstand voltage junctions J1 and J2. Then, a PE layer is formed by selectively diffusing the P type impurities such as boron and the like of 5X10<19>atom/cm<3> or thereabout using a photoresist method and the like. Nickel, aluminum and the like are used as the material of electrodes 2 and 3. At this time, the J3 junction end face comes in contact with all the electrodes. As a result, the impurity density in the vicinity of the J3 junction end face can be increased, thereby enabling to obtain a long creeping surface distance between the J2 junction and the J3 junction.
Patent JP-S6345889-A (JP)
Inventor: SUZUKI SATORU
IPC: H05K3/30
Filed: 1986-08-13
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H0832542-A (JP)
Title: Time division data transmission circuit and switch display circuit of automatic vending machine using the same
Inventor: FUKUYAMA MASAAKI
IPC: G07F9/00
Filed: 1994-07-20
Abstract: PURPOSE:To send many signals through a few number of wires between sender side and receiver side circuits in the time division data transmission circuit utilizing a ring counter circuit and a switch display circuit of an automatic vending machine using the data transmission circuit. CONSTITUTION:A ring counter circuit and an AND gate circuit are used for each of circuits for switch display units 52-57 having a selector switch and a display device of a switch panel side 51 and circuits for controller side interface 61, plural asynchronous parallel data signals are converted into serial signals at a sender side and sent in time series and the receiver side converts the serial signal into the parallel signal. A set of ring counter circuits are used in common for transmission and reception and two-way transmission is attained with a few component numbers and wires.