baber/WOPTO huggingface dataset:
Patent JP-S58100990-A (JP)
Title: Sealing method for part where welded overlay starts in electroslag welding
Inventor: MAEKAWA MITSUO
IPC: B23K25/00
Filed: 1981-12-08
Abstract: PURPOSE:To simplify sealing works and to stabilize initial conditions of welding in a part where overlaying starts by forming a stepped pocket on the end face side in contact with the mold of a start tab and packing a sealing material in the pocket of the lower step. CONSTITUTION:A core material roll 13 is disposed at the center of a mold 11, and the top end of a start tab 12 is mated with roughly the middle of the height of the mold 11. Two stages of level differences are formed from the top surface to the outside circumferential edge of the tab 12 and a sealing material 16 is inserted in one turn lightly in the pocket 22 of the lower step thereof, and iron powder 26 is inserted into the pocket 21 of the upper step to the extent that the material 16 is concealed. Thereafter, welded overlay is executed by hot starting. According to this method, sealing work time is reduced and the product having no defect at the overlaid end face is obtained.
Patent JP-H0747687-A (JP)
Title: Ink cartridge
Inventor: MIZUTANI TSUYOSHI
IPC: B41J2/175
Filed: 1993-08-06
Abstract: PURPOSE:To supply high quality ink constantly to a head. CONSTITUTION:The ink cartridge body 1 is provided with three ink bag containing rooms 3A, 3B, 3C containing ink bags 2A, 2B, 2C, respectively. An ink of same color is encapsulated in the ink bags 2A, 2B, 2C. Membrane plugs 4A, 4B, 4C and the ink mags 2A, 2B, 2C are pierced with unsealing needles 5A, 5B, 5C and the ink flows out from the ink bangs 2A, 2B, 2C into a reservoir 6 thence fed to the head. A user confirms the residual quantity of ink in the reservoir 6 and unseals the ink bags 2A, 2B, 2C, as required, by means of the unsealing needles 5A, 5B, 5C thus feeding the ink into the reservoir 6.
Patent JP-2000028082-A (JP)
Title: Heat insulating hose
Inventor: MASUI HIROYUKI
IPC: F16L59/147
Filed: 1998-07-10
Abstract: PROBLEM TO BE SOLVED: To provide a heat insulating hose having excellent heat insulating effect, in which the manufacturing efficiency of a heat insulating member can be enhanced, and also the heat insulating member can be fitted into an inner tube with ease and having enough retaining force. SOLUTION: In this heat insulating hose equipped with a synthetic resin jointless bendable/deformable inner tube 1 and a foamed synthetic resin heat insulating layer 2 covering the peripheral surface of the inner tube 1, the inner tube 1 is covered with the heat insulating layer 2 under a condition that, on the inner tube 1 having an inside diameter ID, many annular projected grooves 11 having a vertical angle θ of 10 to 30 degrees in a cross sectional shape in a longitudinal direction, having a circular arc shape in their top parts, having width W and having the maximum diameter OD of 1.2 times more than the inside diameter ID are formed at intervals in a size larger than at least 1.6 times the width W, and also the inside diameter 12 of the heat insulating layer 2 is set smaller than the maximum diameter OD of the inner tube 1 and the end parts of the annular projected grooves 11 are bitten into the heat insulating layer 2.
Patent JP-S5897200-A (JP)
Title: Information processor
Inventor: ONO KAZUHIKO
IPC: G06F21/14
Filed: 1981-12-07
Abstract: PURPOSE:To obtain an information processor which can keep the confidentiality of the program content without losing the test function, by outputting the content of a memory externally after conversion. CONSTITUTION:The program content of an ROM2 via a CPU1 is converted at a conversion circuit 7 via an RAM3, applied to an ROM readout circuit 6, from which an output is given externally for external readout and tests can be executed as required without hindrance. Through the constitution of conversion output, an information which can keep the confidentiality of program content without losing the test function, can be attained.
Patent JP-S5897856-A (JP)
Title: Semiconductor device
Inventor: TAKAOKI KIYOSHI
IPC: H01L21/331
Filed: 1981-12-07
Abstract: PURPOSE:To reduce the sheet resistance of a collector region sufficiently, and to lower saturation voltage by making the impurity concentration of a buried layer just under the collector region lower than the impurity concentration of a buried layer just under the transistor of other regions. CONSTITUTION:The region of a semiconductor layer surrounded by P type isolation layers 25 connected to the P type collector region 24 on the first buried layer 21 and said collector region 24 functions as a base region 26, and a vertical PNP transistor 32 is formed by a P type emitter region 27 shaped into the region 26 and the region 26. The vertical NPN transistor 30 is formed by the base region 28 of the upper section of the second buried layer 22, an N type emitter region 29 shaped into the base region 28 and a semiconductor layer 23. The concentration of the base region 28 and a semiconductor layer 23. The concentration of the region 24 is sufficiently increased and saturation voltage is lowered because the impurity concentration of the layer 21 is made lower than that of the layer 22 in the semiconductor device 31 formed in this manner.
Patent JP-S6175548-A (JP)
Title: Semiconductor device
Inventor: TSUNENO HIROSHI
IPC: H01L23/14
Filed: 1984-09-21
Abstract: PURPOSE:To form a light weight substrate, reduce a thermal resistance and prevent crack or missing of material by collision with other substance by forming a substrate which loads a material for semiconductor device, particular ly a semiconductor element with Al metal. CONSTITUTION:Since a substrate 1 which loads a semiconductor chip is formed with Al metal, an insulating film 7 consisting of an oxide is provided between a wiring portion 5 and the substrate 1. This insulating film 7 can be formed easily by compound processing of Al metal used for the substrate 1. Namely, a dense oxide film can be formed at the surface of A4l metal by processing the surface of substrate 1 with an acid such as sulfuric acid and then conducting the heat processing.
Patent JP-H0482283-A (JP)
Title: Laser diode driving circuit
Inventor: IMAMURA KEIICHI
IPC: H04B10/60
Filed: 1990-07-25
Abstract: PURPOSE:To satisfactorily follow the rapid transition state of input signals thereby enabling the high quality output photo-signals to be transmitted by a method wherein a resistor is interposed between the collector of a transistor wherein the driving current is running to a laser diode and the laser diode itself. CONSTITUTION:A resistor R1 is interposed between the cathode of a laser diode LED and the collector of a transistor TrQ1. Next, when the driving current running in the TrQ1 starts to be raised, the voltage between both ends of the resistor is boosted while the voltage between collector and emitter of the TrQ1 is lowered as the TrQ1 almost reaches the saturated state, the frequency characteristics are to be deteriorated. Resultantly, the driving current is to be raised slowly. On the other hand when TrQ1 reaches the non-conductive state the driving current running to the LED is cut off. At this time, the TrQ4 reaches the conductive state thereby rapidly decreasing the potential difference between both ends of the resistor R1 for making the driving current fall down steeply. Through these procedures, the driving current compensating the characteristics of the LED can be generated thereby enabling the limit of the rapid modulation to be raised.
Patent JP-H0361918-A (JP)
Title: Semiconductor laser scanning type optical microscope
Inventor: TAKEI TOSHIJI
IPC: G01B11/24
Filed: 1989-07-31
Abstract: PURPOSE:To miniaturize a semiconductor laser scanning type optical microscope, to simplify the constitution and to extremely easily adjust an optical system by arranging an optical deflector, making reflected light from an object reincident upon the end face of a semiconductor laser, detecting a change in the output light of a semiconductor laser or a change in the driving current of the semiconductor laser, and having a semiconductor laser active layer as a slit and a pin hole. CONSTITUTION:The optical microscope is provided with the semiconductor laser 16, an objective lens 11 for concentrating light radiated from the semiconductor 16 into the object and at least one optical deflector 5a arranged between the laser 16 and the lens 11 to change the incident angle of light made incident upon the lens 11, and scan the surface of the object. The microscope is also equipped with a photodetecting means for making reflected light from the object 12 reincident upon the active layer of the laser 16, and detecting a change in the output light of the laser 16 and an image processor for forming a two-dimensional image based upon an output signal from the photodetecting means. In such a case, the active layer of the laser 16 is utilized as a slit or a pin hole. Consequently, the scanning type optical microscope having constitution and construction capable of easily reducing the weight, size and cost is obtained.
Patent JP-S6255423-A (JP)
Title: Turbo compressor system
Inventor: TAGUMA YOSHIYUKI
IPC: F02C6/10
Filed: 1985-09-04
Abstract: PURPOSE:To facilitate the start of a compressor by providing a bypass piping having a valve between the inlet and outlet sides of the compressor. CONSTITUTION:A turbine 2a is driven by exhaust gas from a fuel cell generating system 1 to drive a compressor 2b for supplying compressed air to said system 1. A bypass piping 17 having a valve 18 is provided between the inlet and outlet sides of the compressor 2b. In starting the compressor is opened the valve 18, and after the start is closed the valve 18. thus, the start of the compressor can be facilitated.
Patent JP-S6258034-A (JP)
Title: Fuel injection controller for diesel engine
Inventor: KAWAGOE MICHIO
IPC: F02D41/00
Filed: 1985-09-05
Abstract: PURPOSE:To aim at slow combustion as well as to reduce a combustion noise, by letting a controller incrementally compensate the extent of pilot injection to a drop in cooling water temperature and/or a suction air temperature, in case of the controller that performs the pilot injection an advance of main injection. CONSTITUTION:In case of a Diesel engine M1 provided with a fuel injection device M2 performing main injection after the elapse of the specified time, after performing such pilot injection as sprayinf the specified quantity, at the time of fuel injection to this Diesel engine M1, there is provided with a temperature detecting device M3 which detects cooling water temperature and/or suction air temperature. And, the specified quantity at the time of the pilot injection is made so as to be incrementally compensated by a compensating device M4 in a manner conformable to a drop in the temperature detected by this temperature detecting device M3. With this constitution, slow combustion in the Diesel engine M1 by proper pilot injection comes to fruition, and reduction in a combustion noise is promoted.
Patent JP-H0484827-A (JP)
Title: Waste straw-conveying machine in thresher
Inventor: NAKAI MASAJI
IPC: A01F17/02
Filed: 1990-07-24
Abstract: PURPOSE:To increase strength of a side board of a rear part in a threshing chamber by providing left and right reinforcing frames by fitting a base part on a side board of a rear part in a thresher and connecting the reinforcing frames with a rear part frame in one body. CONSTITUTION:A thresher 9 is driven and threshing work is started with driving every rotating parts in a machine body. Crop culm is fed into a threshing chamber 1 and subjected to threshing treatment with being conveyed with a conveying machine 10. Waste straw is nipped by a waste straw chain 7 and a guide bar and conveyed, then fed to a cutter 12 in a rear part. In such a work, whole of the thresher 9, especially a part of waste straw is firmly constructed with left and right reinforcing frames 4 and 4' and a rear frame 6 in frame construction, thus enabling safe and sure work.
Patent JP-H0646545-A (JP)
Title: Electromagnetic switch unit and manufacture of movable contact assembly therefor
Inventor: TOMITE TOSHIO
IPC: H01H50/20
Filed: 1992-07-23
Abstract: PURPOSE:To enhance durability while employing resin shaft in a movable contact mechanism. CONSTITUTION:Shaft 16 of a movable contact assembly 15A is constituted of first and second resin components 20, 21 split in the axial direction. After assembling a movable contact 15 and a push spring 17, the first and second components are subjected to ultrasonic diffusion bonding. Since bonding is made after assembling the movable contact 15 and the push spring 17, the movable contact 15 and the push spring are not removed even upon repeated application of operational impact, resulting in considerable enhancement of durability.
Patent JP-H0845117-A (JP)
Title: Method and device for grinding master disk for optical disk
Inventor: YAMASHITA SHIGETERU
IPC: B24B57/02
Filed: 1994-08-01
Abstract: PURPOSE:To simplify and miniaturize a device for grinding master disk by grinding the surface of a glass master disk with an abrasive while rotating this master disk, then washing away the abrasive with a washing liquid injected from nozzle. CONSTITUTION:This master disk grinding device rotates the glass master disk for optical disk on a turn table 2 and has a grinding pad part 3, a rotary brush, a front surface nozzle 5 and rear surface nozzle 6, and a flow type ultrasonic washing unit 7. The grinding pad part 3 is composed of a motor 12, a rod unit 13, a spindle 14 and the grinding pad 15. The glass master disk on the turn table 2 driven by a motor 11 is ground by rotation of the grinding pad 15 while an abrasive, such as CeO2, and pure water are supplied. A rod unit 13 executes a grinding operation while this unit is vertically moved by an air cylinder (not shown is the Fig.). The pure water is discharged to wash the master disk while the pure water is ultrasonically vibrated by the flow water ultrasonic nozzle 17 and the vibrator (not shown in the Fig.,) disposed thereto in the flow type ultrasonic washing unit 7.
Patent JP-S5985766-A (JP)
Title: Ink jet recording head
Inventor: MIYAGAWA AKIRA
IPC: B41J2/05
Filed: 1982-11-09
Abstract: PURPOSE:To make it possible to always stably emit ink with respect to temp. change, by such a simple constitution that an accumulation passage for accumulate ink in a liquid chamber to supply the same to an emission flowline and the part of the wall surface thereof is formed of a material deformed by temp. change. CONSTITUTION:An accumulation passage 12 for supplying the ink received in a liquid chamber 8 while accumulating the same is provided and the part of the wall surface thereof is formed of a material deformed by temp. change to form an ink jet recording head. For example, ink is introduced into the liquid chamber 8 through a tube 7 and emitted as liquid droplets 6 from the cylindrical ink emission flowline 9 of which the leading end has a rectangular cross-sectional area of the liquid chamber 8. In this case, a cylindrical accumulation passage 12 of which the upper and the lower walls 11, 11 are constituted of bimetal is provided in the liquid chamber 8 so as to be connected to the flowline 9 and the interval H between the upper and the lower walls of the accumulation passage 12 is changed by temp. change to compensate the variation in an ink emission amount corresponding to ink viscosity to perform ink emission always stably.
Patent JP-H1046382-A (JP)
Title: Production of fine metallic fiber and conductive paint using the fiber
Inventor: NAKABAYASHI AKIRA
IPC: C09D5/24
Filed: 1996-07-26
Abstract: PROBLEM TO BE SOLVED: To obtain a conductive paint forming a coating film capable of shielding an electromagnetic wave and reflecting an electric wave and having transparency, etc., by obtaining an extremely fine metallic fiber and using the fiber in a conductive filler. SOLUTION: An aluminum material 10 is oxidized to form a porous oxide film 11 having micropores 12 the film 11 is plated to fill the micropore with a metal 13a, and the film surface is coated with a metallic film 13b. The film 11 is dissolved, a frog-like deposit 13 with the plating film 13b bristled with the fibrous metal 13a is separated from the aluminum material 10, and a curing soln. is poured on the bristling metal 13a side of the deposit 13 and cured to form a hard film 14. The hard film is released from the deposit, the replica 15 of the film pierced with a micropore 16 is formed and stuck to a conductor plate 19, the conductor plate is plated to fill the micropore of the replica with a metal 17, the replica is then dissolved to disperse the fine metallic fibers 18 in the soln., and the fine metallic fiber is separated from the replica soln. and obtained.
Patent JP-H0945977-A (JP)
Title: Optical fiber amplifier and optical fiber transmitter
Inventor: ODANI JIYUN
IPC: H01S3/07
Filed: 1995-08-02
Abstract: PROBLEM TO BE SOLVED: To realize an optical fiber amplifier for suppressing the difference of gain in the amplification of wavelength multiplex signal light. SOLUTION: The optical fiber amplifier comprises optical fibers 1, 2 added with Er ions, semiconductor laser light sources' 3, 4 for pumping the oscillation wavelength band of 1.48μm, multiplexers 5, 6 for multiplexing a signal light of wavelength band 1.55μm and a pumping light from the semiconductor laser light sources 3, 4, a signal demultiplexer 7 for demultiplexing a signal light into components of wavelength band 1.54μm and 1.55μm, a signal multiplexer 8 for multiplexing the signal components of wavelength band 1.54μm and 1.55μm, and optical isolators 9, 10 for preventing deterioration due to noise and distortion. A wavelength multiplexed signal light of 1.54μm and 1.55μm bands entering into the input terminal 11 of an optical fiber amplifier is demultiplexed by the signal demultiplexer 7 into 1.54μm and 1.55μm bands.  The 1.54μm band is amplified by the optical fiber 1 added with rare earth ions while the 1.55μm band is amplified by the optical fiber 2 added with rare earth ions before being multiplexed by the signal multiplexer 8.
Patent JP-H0845626-A (JP)
Title: Electric connector
Inventor: NISHIO ATSUSHI
IPC: H01R13/428
Filed: 1994-07-30
Abstract: PURPOSE:To provide an electric connector whose straight portion and/or contacting piece part are free from risk of inclining and rattling even though a metal piece as a contact is mounted on the body part followed by folding of its terminal part. CONSTITUTION:A contacting metal piece 20 as a contact is composed of a contacting piece part 22 to be in contact with a flexible printed circuit board (FPC) 70 inserted in the body part 10, a straight portion 24 to be in continuity to the contacting piece part 22, and a folding terminal part 26 for surface mounting which is folded in the direction opposite the contacting piece part 22 from the straight portion. A holding part 24a having a large width is formed in the lower part of the stratght portion 24, and in the upper part a pressure fit projection 27 is formed in such an arrangement as biting into the inner side face of the insertion part 12 of the body 10.
Patent JP-2000055210-A (JP)
Title: Device for uncontactedly sealing gap between parts
Inventor: BEECK ALEXANDER DR
IPC: F01D11/04
Filed: 1999-07-12
Abstract: PROBLEM TO BE SOLVED: To obtain a device for uncontactedly and economically sealing a gap produced in a fluid machine. SOLUTION: A gap 20 formed between a first and second parts 21 and 22 relatively fixed with each other is sealed uncontactedly to a first fluid 10 by secondary fluid 11. The fluid 11 forms a vortex flow 13 in the range of at least single or plural parts along the gap inside the gap 20.
Patent JP-H1039526-A (JP)
Title: Electrophotographic image forming method
Inventor: WATANABE KAZUMASA
IPC: G03G5/05
Filed: 1996-07-26
Abstract: PROBLEM TO BE SOLVED: To prevent the blurring of an image immediately after the restarting of image formation in an image forming process accompanied by a slight reduction in the film thickness of a photoreceptor by using an electrophotographic photoreceptor contg. a hindered amine compd. having a specified structure. SOLUTION: A photoreceptor used in this electrophotographic image forming method contains a hindered amine compd. having >=1 amine unit per mol.wt. of 600. The amine unit is represented by the formula. The amine compd. may be contained in any layer of the photoreceptor. When it is contained in the electric charge transferring layer(CTL), the amt. is 0.1-100wt.%, preferably 1-50wt.% of the amt. of an electric charge transferring material in the layer. When the amine compd. is contained in the protective layer, the amt. is 0.1-100wt.% preferably 1-50wt.% of the amt. of a resin binder in the layer. This image forming method is preferably used in an image forming device such as a printer or facsimile combined with a reversal developing process.
Patent JP-S6090920-A (JP)
Title: Subsidiary combustion chamber for diesel engine
Inventor: MATSUMOTO HIROMITSU
IPC: F02B19/14
Filed: 1983-10-24
Abstract: PURPOSE:To enhance combustibility of fuel, by heating air introduced into a subsidiary combustion chamber (subsidiary chamber) which is communicated with a main combustion chamber formed in the top surface of a piston via a through-hole by disposing a glow plug in the subsidiary chamber in the manner that it is located in the vicinity of the through-hole and extends substantially in parallel to the axis of said through-hole. CONSTITUTION:A subsidiary chamber 7 is constituted by a flat bottom surface 7a shaped in a substantially circular form, a conical side wall 7b contiguous to the bottom surface 7a and a hemi-spherical top surface 7c formed in the bottom surface of a cylinder head 3. The bottom surface 7a of the subsidiary chamber 7 is slightly recessed at the portion near a through-hole 6, and the top 10a of a glow plug 10 extended through a side wall 7d of a nozzle member 8 is located at the recessed portion of the bottom surface 7a. Here, the top 10a of the glow plug 10 serving as a heating part is disposed in the subsidiary chamber 7 in the manner that it is exposed substantially at the central portion of the through-hole 6 and extends substantially in parallel to the axis of the hole 6. Compressed air is introduced into the subsidiary chamber 7 via the through-hole 6 along the axis of the glow plug 10 while keeping contact with the same, and the compressed air thus introduced into the subsidiary chamber 7 is heated to a high temperature. With such an arrangement, it is enabled to ignite air-fuel mixture positively and to enhance the combustibility of the same.
Patent JP-2001022161-A (JP)
Title: Electrifier and electrophotographic device
Inventor: KONDO HIROSHI
IPC: G03G15/02
Filed: 1999-07-12
Abstract: PROBLEM TO BE SOLVED: To uniformly electrify an object to be electrified by configuring adjacent electrodes so that they have portions of different shapes. SOLUTION: A pair of discharge electrodes 2 and 3 are provided on the same flat surface of an electrical insulating substrate 1. Also, dielectric walls 4-6 are provided between and outside the discharge electrodes 2 and 3 on the substrate 1 so as to held the discharge electrodes 2 and 3 and so as to form almost closed spaces round the discharge electrodes 2 and 3. The spaces formed with the discharge electrodes 2 and 3 between the dielectric walls 4-6 serve as ion generating parts. In this case, the discharge electrodes 2 and 3 are configured to be different from each other in shape. For instance, whereas the discharge electrode 2 has such a shape that a face on the side of the ion generating part is at an angle to the substrate 1, the discharge electrode 3 has such a shape that a face on the side of the ion generating part is parallel to the substrate 1.  Thus, a portion in which the intensity of an electric field is high is formed, discharge is generated a low voltage, and an amount of ozone generation, therefore, decreases.