baber/WOPTO huggingface dataset:
Patent JP-S6442123-A (JP)
Title: Manufacture of semiconductor device
Inventor: YASUI KATSUHIKO
IPC: H01L21/22
Filed: 1987-08-07
Abstract: PURPOSE:To relax a concentration of an electric field and to enhance the breakdown strength of a P-N junction by a method wherein an isotropic etching operation of a semiconductor substrate is executed selectively by using a mask of an insulating film on the semiconductor substrate where a hole has been made selectively and, then, an impurity whose conductivity type is opposite to that of the semiconductor substrate is introduced into the semiconductor substrate by making use of the insulating film as the mask by using a vapor-phase diffusion method. CONSTITUTION:An opening is made selectively in an insulating film 4 formed on an N-type semiconductor substrate 1 by using a photoetching method; then, an isotropic etching operation of the N-type semiconductor substrate 1 is executed by making use of the insulating film 4 as a mask; then, a P-type impurity is introduced into the N-type semiconductor substrate 1 by making use of the insulating film 4 as the mask by using a vapor-phase diffusion method. A radius of curvature at a junction curved face of a P-type impurity diffusion layer 2 is decided by an etching depth of the N-type semiconductor substrate 1 and a diffusion depth of the P-type impurity diffusion layer 2; even in the comparatively shallow P-type impurity diffusion layer 2, it is possible to form a P-N junction having the junction curved face whose radius of curvature is large if the etching depth of the N-type semiconductor is made sufficiently large. By this setup, is possible to manufacture a semiconductor device having a junction whose junction breakdown strength is high.
Patent JP-H1145925-A (JP)
Title: Substrate processing device
Inventor: MURAOKA YUSUKE
IPC: H01L21/677
Filed: 1997-07-24
Abstract: PROBLEM TO BE SOLVED: To provide a substrate processing device which prevents an atmosphere containing an outside air component from flowing in a processing chamber. SOLUTION: In a wafer processing device provided with a chemical treatment chamber MTC in which a treatment using chemicals is performed for a wafer W and a wash/dry processing chamber in which a treatment using pure water is performed for the wafer W, an atmosphere replacement chamber 1 is provided between an indexer chamber IDC filled with an outside air atmosphere and a transportation chamber TC filled with a gas atmosphere. In the atmosphere replacement chamber 1, an N2 gas is supplied into the chamber while the atmosphere in the chamber is discharged, thereby removing an outside air component from the atmosphere in the indexer chamber IDC, and preventing the outside air atmosphere from flowing into the chemical treatment chamber MTC, etc.  Further, a chemical component is also removed from the atmosphere in the indexer chamber IDC, so that a chemical atmosphere is also prevented from flowing into the indexer chamber IDC.
Patent JP-S6089805-A (JP)
Title: Magnetic erasure head
Inventor: TAKEUCHI GIICHI
IPC: G11B5/127
Filed: 1983-10-24
Abstract: PURPOSE:To attain high erasure efficiency by forming a region having a thickness equal to the depth of gap to an arm of a core element chip at the running direction of a magnetic recording medium. CONSTITUTION:A couple of core element chips 10, 11 are bonded with melting by a nonmagnetic material such as glass via a gap spacer 20, and a winding hole 12 is formed to the core element chip 11 and the depth of gap (d) is specified. Then the region having a thickness equal to the depth of gap (d) is formed to a face being continuous from a point specifying the depth of gap (d) is formed to the arm 13 of the element chip 11. The tape running side of the strength distribution of erasure magnetic field is made gentle as shown in Fig. (h) in this way. Thus, the magnetic field applied to a tape is decreased gradually from the saturated magnetic field, the residual magnetic field is converged to zero and a high erasure efficiency is attained.
Patent JP-S5990123-A (JP)
Title: Power supply circuit of battery back-up memory
Inventor: CHIYOUNO TATSUO
IPC: G06F1/32
Filed: 1982-11-15
Abstract: PURPOSE:To reduce the consumption of a battery by preventing the current to a control circuit after separating the ground line of a DC power supply from the ground line of the battery which supplies the power to a nonvolatile memory for backup when the power supply is cut off. CONSTITUTION:An RAM1 receives the supply of power from a DC power supply 5 after a switch 9 is closed and then backed up by a battery 4 when the supply 5 is turned off. A ground line E between the supply 5 and the battery 4 is separated from a diode 10. At the same time, control lines 13 and 14 are provided between a control circuit 15 and the RAM1, and resistances 11 and 12 are connected to the lines 13 and 14. Then the level of the RAM1 is held at H or L in a back-up mode. While the supply 5 is kept on, the current flows through an SW9, a diode 3b, the RAM1 and the diode 10. When the supply 5 is turned off, the current flows through the battery 4, a diode 3a and the RAM1. Therefore the power supply is discontinued to the circuit 15 during back-up. Thus the consumption of the battery 4 is prevented.
Patent JP-H0549014-A (JP)
Title: Picture processor
Inventor: KUSAO HIROSHI
IPC: H04N7/14
Filed: 1991-08-08
Abstract: PURPOSE:To eliminate a complicated line density conversion processing section by imparting other data to the input picture data of a prescribed size so as to generate a communication format with a different size. CONSTITUTION:At the time of a normal mode selection, an address is supplied to a field memory 3 and a signal is sent and switched to a multiplexer 9 to connect the field memory 3 and a coder 10. After the end of supply of the address, the address is supplied to an additional data memory 4 and a signal is sent to the multiplexer 9 to connect a multiplexer 8 and the coder 10, from which an additional data is outputted. On the other hand, in the self-company mode selected, the address is supplied to the field memory 3 and a signal is sent to the multiplexer 9, which is selected to connect the field memory 3 and the coder 10. After the end of the application of the address, the multiplexer 8 is connected to the coder 10, from which a dummy data is outputted.
Patent JP-H0924351-A (JP)
Title: Ultrasonic washing device
Inventor: SUYAMA HIKARI
IPC: B08B3/12
Filed: 1995-07-11
Abstract: PROBLEM TO BE SOLVED: To prevent the weakening of ultrasonic vibration by interference with the ultrasonic waves heading toward a discharge port by disposing an ultrasonic vibrator transducer and the washing water discharge port of a nozzle chamber in opposite positions and forming the inside wall surface of the nozzle chamber of a material which more hardly reflects the ultrasonic vibrations at least than metals. SOLUTION: The ultrasonic waves generated from the ultrasonic vibrator are propagated while the ultrasonic waves are reflected in the resin nozzle chamber 19 which is formed to the shape tapered toward the discharge port 4 and more hardly reflects the ultrasonic vibration than the metals. While the ultrasonic waves are made incident at a small angle with the inside wall surface of the nozzle chamber 19, the ultrasonic waves are approximately totally reflected but as the ultrasonic waves repeat the reflection on the inside wall surface of the nozzle chamber 19, the ultrasonic waves are eventually made incident at the large angle with the inside wall surface of the nozzle chamber 19. At this time, the ultrasonic waves are absorbed and weakened by the inside wall surface of the nozzle chamber 19. Then, the ultrasonic waves eventually heading toward the direction of the ultrasonic vibrator transducer while repeating the reflection are substantially eliminated. The weakening of the ultrasonic vibration by the interference with the ultrasonic waves toward the discharge port 4 is thereby prevented.
Patent JP-S58100249-A (JP)
Title: Carrier for optical information recording
Inventor: OOTA TAKEO
IPC: G11B7/24085
Filed: 1981-12-09
Abstract: PURPOSE:To adjust an optical recording and reproducing system speedily and accurately by providing a signal track part consisting of recessed and projected pits dedicated to reproduction and a groove track part for recording and reproduction on a substrate, and providing a recording thin film over them. CONSTITUTION:Signals of frequencies f1, f2 and f3 are recorded on mutually adjacent tracks. Track lines of recessed and projected pit signal lines 1 and 2 are provided at the innermost and outermost circumferential parts of a disk. A recording and reproduction part 3 for information is provided at a disk intermediate part surrounded by said signal parts 1 and 2. A thin film for information recording is vapor-deposited over the entire area of the signal parts 1 and 2 and recording and reproduction part 3. This substrate is made of transparent acryl and tracks consisting of the signal parts 1 and 2 having the recessed and projected pit are provided thereupon; when the width d1 of the recessed and projected bit signal and the diameter d2 of irradiation laser spot light are set to be d1<d2.
Patent JP-H0618771-A (JP)
Title: Automatic focusing device for enlarging magnification image pickup device
Inventor: OSAKI MORIHIDE
IPC: G02B21/36
Filed: 1992-07-01
Abstract: PURPOSE:To quickly execute focusing even when the control of an object is low by providing a pair of coupling lenses at mutually different positions within the image forming surface of an objective lens. CONSTITUTION:A pair of image forming lenses 15R and 15L is respectively provided at the mutually different positions within the image forming surface of luminous flux transmitted through the objective lens 12. Besides, image pickup elements 16R and 16L are provided on the respective image forming surfaces of the lenses 15R and 15L. Based on video signals from the elements 16R and 16L, the positions of the centers of the gravity of videos shown by the respective video signals are calculated by an arithmetic part for the position of the center of gravity 17. Based on the calculated positions of the centers of the gravity, the correcting quantity and the correcting direction of a focusing position are calculated by a correction arithmetic part 18.
Patent JP-H0365093-A (JP)
Title: Temperature control method for motor
Inventor: CHIGIRA NOBUTOSHI
IPC: H02P29/62
Filed: 1989-08-02
Abstract: PURPOSE:To operate a servo motor efficiently by making use of the change of the winding resistance value of the coil of a servo motor so as to detect the temperature of the coil of the servo motor, and putting a wait time before the next start based on the detection results or controlling the number of revolutions and the current value. CONSTITUTION:The winding resistance value of a servo motor 5 changes according to the temperature. If the servo motor 5 is driven by a small amount, a current detection circuit 6 detects the current value. The output of the current detection circuit 6 is input into a counter 7. muCPU 1 detects the coil temperature of the servo motor 5 by the table value (temperature data) of ROM3 based on the output of the counter 7. muCPU 1 outputs a control signal to an I/O port 2 according to the detection results. The I/O port 2 drives the servo motor 5 through a driver circuit 4. Hereby, the wait time, the number of revolutions, and the current value are controlled, whereby the servo motor 5 can be utilized effectively.
Patent JP-H1130924-A (JP)
Title: Fixing device
Inventor: HINOKIGAYA TOSHIAKI
IPC: G03G15/20
Filed: 1997-07-09
Abstract: PROBLEM TO BE SOLVED: To directly heat a part coming into contact with a transfer paper, for shortening a rising time and saving energy by using iron or a stainless steel alloy serving as a heat generating part, in an outside layer and to prevent temperature unevenness by using aluminum in consideration of thermal conduction, for an inside layer, in the constitution of the core metal of an induction heating roller. SOLUTION: In this fixing device, fixation is executed by a heating roller 1 and a pressure roller 2 and the heating roller 1 is of the induction heating roller and provided with a fixed-side bobbin part 3 having an induction coil wound on the outer periphery and the core metal 4 coaxially and rotatably arranged in the outside diameter direction of the bobbin part 3. The core metal 4 consists of a first layer 30 made of a material having a large coefficient of linear expansion and a second layer 31 which is fixed on the outside surface of the first layer 30 and made of a material having a small coefficient of linear expansion. The length in an axial direction of the first layer 30 is set greater than that of the second layer 31 and a movement preventing member 22 for blocking the movement in the axial direction of the second layer 31 is provided on the side of the first layer 30.
Patent JP-H0586986-A (JP)
Title: Fuel feeding device for liquefied gas engine
Inventor: ITAGAKI HIDEHIKO
IPC: F02D19/02
Filed: 1991-08-08
Abstract: PURPOSE:To prevent fuel from being discharged to the open air through a carburetor so as to prevent wasteful consumption of the fuel. CONSTITUTION:A fuel feed passage 43 to gasify liquefied gas and feed it to an engine and an air intake passage 47 to feed air are formed independently away from each other. Only during suction of an engine, the fuel feed passage 43 is set in a communicated state.
Patent JP-S6259833-A (JP)
Title: Inspection instrument for rotational mechanism body
Inventor: TOMITA YOSHIYUKI
IPC: G01M13/02
Filed: 1985-09-10
Abstract: PURPOSE:To automate the temporary assembly operation in a process of inspection to the maximum by connecting a power source and load with a rotational mechanism body to be an object of inspection. CONSTITUTION:First, a clamper 12 is rotated and the upper part is opened widely and a speed reducer 2 is set to an inspection instrument main body 1 and connected with the load 3 by a chuck part 4 and an adapter 5 for the chuck. Continuously, a driving unit is lowered until a cup 11 for clamping is brought into contact with the speed reducer 2 by a vertical driving mechanism 14. At that time, a deviation takes place between the direction of a tapered groove of the taper coupling 9 and the direction of a pin of the top of a speed reducer shaft by accuracy of the speed reducer 2 and an error of the setting and the like but a twist between both directions is absorbed by a positioning error correction means. Then, the clamper 12 is a little raised and rotated and directed in the central direction and then, is brought into contact with the cup 11 and lowered until pushing it to an extent. Hereby, the speed reducer 2 is fixed on the main body 1 at the prescribed position via an adapter 13. In this way, the temporary assembly of the speed reducer 2 to be the object to be inspected, the load 3 and the driving unit is finished.
Patent JP-H1145035-A (JP)
Title: Image forming device
Inventor: HAYAKAWA NAOSHI
IPC: G03G21/10
Filed: 1997-07-25
Abstract: PROBLEM TO BE SOLVED: To make a situation that a cleaning blade for cleaning a transfer belt is prevented from being turned up because it is rolled in a transfer belt compatible with a situation that the back surface of transfer material is prevented from being soiled when an image forming device is provided with a transfer device having the transfer belt and the cleaning blade. SOLUTION: This device is constituted so that a toner image is formed in a paper interval on a photoreceptor 4 by a latent image forming means(6 and L2) and a developing device 2 in order to prevent the turnup of the cleaning blade and transferred to the transfer belt 31 so as to be supplied to the sliding part of the cleaning blade 32. In such a case, the absolute value of the electrified amount of toner at the time of adhering to the photoreceptor is <=9 μC/g and the adhesion amount thereof is >=0.43 mg/cm<2> as the developing condition of the device 2 for forming the toner image to prevent the turnup. Furthermore, the absolute value of the electrified amount of the toner on a developing roller 20 is <=4 to 10 μC/g and a developing gap is 0.05 to 0.15 mm.
Patent JP-H0732742-A (JP)
Title: Heat transfer sheet
Inventor: NAKAMURA YUUSUKE
IPC: B41M5/395
Filed: 1993-07-20
Abstract: PURPOSE:To contrive a satisfactory dye transfer which does not cause the unevenness of the transfer, etc., by a method wherein, in a heat transfer sheet having a dye layer containing a heat transfer dye and a binding agent resin formed on its base material sheet, phenyl isocyanate-modified polyvinylacetoacetal resin is incorporated into the binding agent resin. CONSTITUTION:In a heat transfer sheet wherein, by a transfer means such as thermal head, a large number of color dots in three or four colors are transferred to a transfer material and, by such color dots, the full color images of a copy are formed, the transfer sheet is used which is provided with a dye layer containing a heat transfer dye and a binding agent resin formed on its base material sheet. In this case, the binding agent resin consists mainly of the phenyl isocyanate-modified polyvinylacetoacetal resin expressed by the formula and the phenyl isocyanate-modified portion is contained in an amount of at least 5wt.% based on the total weight of the binding agent resin. This makes the affinity for the dye and its releasing function satisfactory and, in particular, permits an even, high-quality color image to be formed on its highlighted part.
Patent JP-2000028789-A (JP)
Title: Method for operating nuclear power generation plant of boiling water type
Inventor: UCHIDA SHUNSUKE
IPC: G21D3/08
Filed: 1998-07-15
Abstract: PROBLEM TO BE SOLVED: To make it possible to accelerate the higher effect than usual injection of hydrogen by injecting more excessive hydrogen than the quantity of hydrogen injected continuously ahead of the implementation of the continuous injection of hydrogen and controlling the property of an oxide film on the surface of a material. SOLUTION: Before hydrogen is continuously injected, a more excessive quantity of hydrogen injected continuously-for example, about twice of the most appropriate quantity in the hydrogen concentration on a reactor basis-is added for the time film-for approximately 20 hours, for instance-required to stabilize a certain value of the property of an oxide. As a result, the replacement of the oxide film with that of a reduced type leads to a condition where the film is a reduced type and the low concentration of oxidative species during the period when hydrogen is injected continuously afterward to secure the soundness of constituting members. As to the position where hydrogen is injected, it may be impregnated from a pipe of a feed water system downstream from a feed water heater 12 in a boiling water nuclear power plant.
Patent JP-H0485265-A (JP)
Title: Buckling device of flatly stacked paper
Inventor: UNO TADAO
IPC: B31F1/08
Filed: 1990-07-26
Abstract: PURPOSE:To properly fold flatly stacked paper on a predetermined fold line by previously plunging a piercing needle vertically onto a two-fold planned line to ensure a press-in position in the case of a buckling blade pressing in the flattly stacked paper between buckling rolls. CONSTITUTION:A piercing needle 15 is additionally provided in a buckling blade 14. The piercing needle 15 is arranged on an edge point line of the blade 14 to protrude a needle point a little from the edge point. Bucking guides 21 are provided in an inlet part where flatly stacked paper 13 is pressed in buckling rolls 11, 12. When the bucking blade 14 is lowered, the piercing needle 15 is plunged ahead into a fine line 20, which is a two-fold planned line, to ensure a press-in position of the blade 14. Accordingly, the blade 14 performs pressing in accurately in the two-fold planned line. In the buckling guide 21, one side of the flatly stacked paper 13 is surely prevented from first being brought into contact with the one buckling roll in the beginning of pressing in by the blade 14, and lateral displacement is prevented by supporting the flatly stacked paper 13, not restricted by edge guides 18 by starting the pressing in, in the vicinity of both sides of the two-fold planned line.
Patent JP-2000026685-A (JP)
Title: Resin composition and injection molded article
Inventor: NARA TOMOYUKI
IPC: C08L51/04
Filed: 1998-07-15
Abstract: PROBLEM TO BE SOLVED: To provide resin compositions having impact strength in a low temperature atmosphere and, at the same time, rigidity in a heated atmosphere, particularly resin composition which can suitably be used as resin tube fitting materials and covering materials for external layers of metal fittings by injection molding. SOLUTION: Resin compositions comprises a vinyl chloride type resin and a graft copolymer obtained by grafting a vinyl monomer on to a rubber polymer having an average particle diameter of not smaller than 260 nm. Injection molded articles are obtained by subjecting these resin compositions to injection molding. As the graft copolymer, a methyl methacrylate/butadiene/styrene type copolymer is preferred.
Patent JP-H0364750-A (JP)
Title: Image forming device
Inventor: NAKAMURA HIROSHI
IPC: G03D13/00
Filed: 1989-08-03
Abstract: PURPOSE:To obtain an image with uniform density even if a photosensitive material is guided by a high-temperature guide member by providing guide members guiding a material, to which an image forming solvent is applied, to a heating means with a light transmitting hole for an optical sensor opposite to the outside of this material image forming area. CONSTITUTION:A heat-development photosensitive material 16 and an image receiving material 32 are guided respectively by the guide members 112 and 113 to a sticking roller 48 to be stuck together. The oblong light transmitting hole 117 for the optical sensor 116 is provided in the vicinity of the longitudinal edge of the guide member 112 and out of the image forming area in the shorter edge of the photosensitive material 16, and an image can be reproduced in a water application area.
Patent JP-2001028300-A (JP)
Title: Insertion light source having radiation resistance characteristics
Inventor: OHASHI TAKESHI
IPC: G21K1/093
Filed: 1999-07-14
Abstract: PROBLEM TO BE SOLVED: To enhance radiation and charged particle beam resistance characteristics and easily form required magnetic field distribution by installing a space between magnet lines, arranged so as to face magnet line formed by arranging rare earth permanent magnets whose magnetizing direction varies periodically, and arranging SmCo base sintered magnets at the ends of a magnet line formed by arranging NdFeB base sintered magnets. SOLUTION: An insertion light source is formed by arranging SmCo-based magnets at the ends of magnet lines where electrode go in and out, and arranging NdFeB-based magnets in portions other than the ends, where magnetic field distribution become a periodical magnetic field. Since the NdFeB-based magnet easily causes demagnetization due to charged particle and the SmCo base magnet rarely causes demagnetization, the SmCo base magnet is used at the ends having high probability of irradiation of radiation or charged particle beams. Use of 2-17 type SmCo base magnet, having holding force mechanism by magnetic domain wall pinning and having both radiation characteristics several steps higher than 1-5 type SmCo-based magnet is preferable as the SmCo-based magnet.