baber/WOPTO huggingface dataset:
Patent JP-H08139390-A (JP)
Title: Gas laser apparatus
Inventor: KOBAYASHI SHINJI
IPC: H01S3/038
Filed: 1994-11-09
Abstract: PURPOSE: To reduce optical loss on the surfaces of discharge electrodes when the discharge electrodes are so constructed as to form an optical waveguide. CONSTITUTION: Both edge parts of a high voltage side discharge electrode 11 and a low voltage side discharge electrode 15 along a laser optical axis are linked with each other and supported by insulating supporting members 18. The distance between the respective discharge electrodes 11 and 15 is not lager than 5mm. With such a small distance, the respective discharge electrodes 11 and 15 function as an optical waveguide. The surface roughnesses of the surface of the respective discharge electrodes 11 and 15 facing each other are not larger than a half of the wavelength of the laser beam. With this constitution, the respective discharge electrodes reflect the laser beam without optical loss, so that the laser output can be improved.
Patent JP-H06101533-A (JP)
Title: Air-fuel ratio control system of engine
Inventor: TSUKAHARA YUTAKA
IPC: F02D41/14
Filed: 1992-09-19
Abstract: PURPOSE:To prevent deterioration of exhaust emission control performance by securing the storage effect of a catalyst when periodically varying fuel injection quantities in order to generate a dynamic model in the air-fuel ratio control of the engine by adaptation control method. CONSTITUTION:An air-fuel ratio control unit is provided with an injector 2 for supplying fuel to an engine 1 and a controller 3 for controlling the pulse width of each injection signal output to the injector 2. The unit is also provided with a desired value setting mechanism 4 for setting a desired air-fuel ratio which is the target figure of fuel injection quantity control, an O2 sensor 6 for detecting the actual air-fuel ratio of the engine 1, and an adaptation mechanism 6 to which a controlled variable computed by the controller 3 and a value detected by the O2 sensor 5 are input and which then produces the dynamic model of the control system and varies the control constant of the controller 3. The desired value setting mechanism 4 outputs following a preset standard model a desired air-fuel ratio which flctuates alternately to the rich and lean sides around a theoretical air-fuel ratio of 14. 7.
Patent JP-H02121074-A (JP)
Title: Free curve generating method
Inventor: KIKUCHI ATSUSHI
IPC: G06T11/20
Filed: 1988-10-31
Abstract: PURPOSE:To generate the title free curve to smoothly link prescribed nodal points by setting control points so that the sum of the squares of the difference vectors of vectors to link either adjoining nodal points or control points can be smaller. CONSTITUTION:A first difference vector (P2-P1)-(P1-P0) between a vector P1-P0 from a first nodal point P0 to a first control point P1 and a vector P2-P1 from the first control point P1 to a second control point P2 and a second difference vector (P3-P2)-(P2-P1) between the vector P2-P1 from the first control point P1 to the second control point P2 and a vector P3-P2 from the second control point P2 to the second nodal point P3 are obtained. Further, the first and second control points P1 and P2 are set so that the sum of the squares G of the first and second difference vectors (P2-P1)-(P1-P0) and (P3-P2)-(P2-P1) can be smaller. Thus, the free curve to smoothly link the prescribed nodal points can be generated.
Patent JP-2000104651-A (JP)
Title: Engine igniting device
Inventor: SHIOBARA KATSUYOSHI
IPC: F02P9/00
Filed: 1998-09-29
Abstract: PROBLEM TO BE SOLVED: To improve the exhaust properties, startability and operability at the time of restarting while preventing the generation of the fuel left as it is not burned by stopping the igniting operation after performing the predetermined number of ignition times after an ignition switch is turned off. SOLUTION: An engine control unit(ECU) 2 controls an ignition coil relay 4 and a power transistor 7. When the ignition switch(IS) 1 is turned on and a power source is connected to the ECU 2, the ignition coil relay 4 is turned on. The ECU 2 computes the ignition time and a requested dowel time during the ON time of the IS 1, and controls the power transistor 7 on the basis of a result of the computing. On the other hand, when the IS 1 is turned off so as to stop and engine, fuel injection to the engine is stopped. A discrimination whether the predetermined number of ignition times is performed or not after the IS 1 is turned off is performed. After performing the predetermined number of ignition times, the ignition coil relay 4 is turned off so as to stop the igniting operation, and an ECU relay 3 is turned off so as to cut off the power source by itself for conclusion.
Patent JP-H1192893-A (JP)
Title: Flat iron base alloy powder for magnetic shield
Inventor: ISHIGURO GINYA
IPC: H01F1/20
Filed: 1997-09-22
Abstract: PROBLEM TO BE SOLVED: To improve the high saturation magnetization and low magnetic coercive force of powder by blending specified ratios of Si, Al, Ti and Fe into the powder. SOLUTION: This powder has a compsn. contg., by atom, 15 to 35% Si and/or Al, 1 to 10% Ti, and the balance Fe with inevitable impurities. At the time of producing the alloy powder, a raw material composed of an Fe-Si alloy, an Fe-Al alloy, Ti for melting and electrolytic iron is melted by a high-frequency induction furnace, and, after the regulation of its comps., it is powdered by a water atomizing method. After that, it is subjected to classifying, flattening, heat treatment and reclassifying by ordinary conditions to form into flat alloy powder in which the average thickness (d) is regulated to 0.02 to 0.6 μm, the size distribution D50 is regulated to 3 to 60 μm, and the aspect ratio D50 /d is regulated to 200 to 500. In this way, the powder showing 7.3 to 11.8 Oe coercive force and about 121 to 159 emu/g saturation magnetization can be obtd.  This powder can suitably be used for shield materials of magnetic recording devices and electronic apparatus.
Patent JP-2001100688-A (JP)
Title: Method and circuit for driving display device
Inventor: KUBOTA AKIYOSHI
IPC: G09G3/36
Filed: 1999-09-28
Abstract: PROBLEM TO BE SOLVED: To provide a method and a circuit for driving a display device realizing low power consumption. SOLUTION: Plural gradation signals GR0-GR15 that at least a part GR1-GR14 of the gradation signals answering to respective gradation levels become fold-back symmetry around a horizontal synchronizing signal are awaited, and the gradation signals according to display data are selected from them to generate a drive voltage.
Patent JP-H02123036-A (JP)
Title: Sheet feeder
Inventor: AOKI TOMOYA
IPC: B65H3/04
Filed: 1988-10-31
Abstract: PURPOSE:To enable a paper form to be conveyed being separated sheet by sheet by constituting a device oscillating a driven roller so as to be pressed to a laminated paper form side when a drive roller is driven rotating. CONSTITUTION:When a drive roller 2 is rotated by power of a drive motor in a direction A, even a connecting rod 4, while though it slips, is rotated with a drive shaft 1 serving as the supporting point, pressing a driven roller 3 to a side of laminated paper form 6. Under this condition, by rotating a conveying belt 5 wound between the rollers 2 and 3, the paper form 6 is separated sheet by sheet and conveyed to a printer side. Subsequently, when the paper form 6 is sucked to the printer side, conveyance of the paper form 6 is stopped by reversely rotating the drive shaft 1 and lifting the driven roller 3 to be separated from the paper form 6.
Patent JP-H09117617-A (JP)
Title: Purifying device
Inventor: SAHO NORIHIDE
IPC: B01D35/06
Filed: 1995-10-24
Abstract: PROBLEM TO BE SOLVED: To easily remove or replace a magnetic filter to improve purifying functions of a purifying device by making a raw water passage of magnetic separation part of the device a return passage structure. SOLUTION: An introducing pipe 30 for a pretreatment water 12 is disposed through a porous magnetic pole 18 and a highly-sloped magnetic filter 20 in a magnetic separation vessel 15 to open the pipe 30 deep in the vessel 15. As a result, the water 12 flows in from the upper part of the pipe 30 and is turned back in the interior of the vessel 15 and flows into the filter 20, where magnetic flocs in the pretreatment water are captured onto the surfaces of magnetic fine wires of packings by large magnetic forces so that purified raw water becomes treated water, which water is stored in a treated water tank 23 through a valve 21 and a water pipe 22.  To replace a filter, if a raw water flow passage at an end of magnetic separation part inlet and outlet is disassembled and separated a filter, together with a water passage, can be removed from a separation part so as to be replaced with a new one.
Patent JP-S62131456-A (JP)
Title: Low voltage arc discharge light source device
Inventor: HERUMUUTO EMU ROI
IPC: H01J61/72
Filed: 1986-11-20
Abstract: In a low pressure arc discharge light source unit for unipolar or bipolar operation comprising a vacuum-tight glass envelope (1) translucent at at least one side thereof, a rare fill gas and a quantity of mercury therein, a coating of fluorescent phosphor on the inner side of the envelope, and at least two electrodes opposed to each other within the envelope and connected to lead-in wires or the like, the envelope (1) is flat and essentially two-dimensional comprising two planar areas essentially parallel to each other at a small distance. The unit provides for better light output, better radiation efficacy and simpler and less costly manufacture, at the same time being more compact. At least 50 % of the radiation of the planar area of the front of the envelope (1) is effective. Means are provided allowing a single cathode to cooperate with a multiplicity of anodes in e.g. a pixel. I
Patent JP-H08113989-A (JP)
Title: Joint structure of wall panel
Inventor: TSUCHIMOTO TOSHINORI
IPC: E04B1/684
Filed: 1994-10-14
Abstract: PURPOSE: To ensure watertightness of a joint by forming properly and surely the joint between adjoining wall panels utilizing a sash cover. CONSTITUTION: An opening 5 surrounded by a frame material 9 including a vertical frame material 6 adjacent to one wall panel 3 is formed in other wall panel 2 and a sash cover 11 having a leg piece 12, the inner end of which is in contact with an outside surface of the vertical frame material 6 is mounted to a sash cover 10 attached to the opening 5. A caulking compound 15 is filled into a joint 4 produced between the leg piece 12 and an external facing board 13 attached to the outside surface of a vertical frame material 14 provided in the adjacent wall panel 3 so as to be adjacent to the wall panel 2.
Patent JP-H02120837-A (JP)
Title: Long film feeding and take-up device
Inventor: MINEGISHI TADASHI
IPC: G03B1/54
Filed: 1988-10-31
Abstract: PURPOSE:To eliminate the need for various transmission mechanisms and to substantially reduce noise by sharing the feeding and taking-up of long film with three motors; feeding motor, a wind-up motor and a take-up motor. CONSTITUTION:The feeding motor 32 rotating and driving a supply sprocket 19, the wind-up motor 33 rotating and driving a wind-up sprocket 17 and the take-up motor 34 rotating and driving a take-up shaft 14 are provided on the side of a photographing device. Since the three motors such as the feeding motor 32, the wind-up motor 33 and the take-up motor 34 share the feeding and taking-up of the film 3, the film can be fed at high speed. Moreover, the need of mechanical transmission mechanism is eliminated to substantially reduce noise arising when the film is fed and taken-up.
Patent JP-H03138533-A (JP)
Title: Hot wire type air flowmeter
Inventor: HANZAWA KEIJI
IPC: G01F15/04
Filed: 1989-10-25
Abstract: PURPOSE:To lessen the influence of an overall offset voltage on temp. by detecting the input offset voltage of an operational amplifier by the input terminal of an offset control circuit. CONSTITUTION:The operational amplifier functions basically to amplify the voltage difference of input terminals +, - with a high gain and to output a voltage to a terminal 30 and is used by feeding a resistor, etc., back to the point between the - input terminal 22 and an output terminal 30. The input offset voltage generated between the terminals 21 and 22 is detected by the offset control circuit, is amplified and is then outputted by the output terminal. The gate voltage of a MOS transistor 31 can be controlled by connecting the output terminal and the terminal 32. Further, the drain current changes cooperatively with the change in the gate voltage. On the other hand, a current mirror circuit is constituted by transistors 29, 23 and, therefore, the change in the drain current is the change in the current of a differential circuit. There is a correlation between the current of this differential circuit and the temp. coefft. of the input offset voltage and the input offset voltage can be regulated.
Patent JP-S61270304-A (JP)
Title: Rare earth-containing alloy powder
Inventor: ISHIGAKI NAOYUKI
IPC: C22C38/00
Filed: 1985-12-10
Abstract: PURPOSE:To obtain alloy powder for a permanent magnet of which the main phase is tetragonal crystal and which contains C, O and Ca at low ratios by using a mixture composed of Nd and Pr and Y, etc., specific heavy rare earth element, B, Fe and Co as a starting raw material and using Ca for a reducing agent. CONSTITUTION:The powders of the compsn. consisting, by atom% of 12.15-20% R (where R1; 0.05-5%), 4-20% B, 45-82% Fe and <=35% Co and mixed. R1 is >=1 kinds among Gd, Tb, Dy, Ho, Er, Tm, Yb which are the heavy rare earth elements. R1 is R1+R2 and R2 is >=1 kinds of the rare earth elements contg. >=80% Nd and Pr and the balance Y except R1. T reducing agent such as metallic Ca and CaCl2 powder, etc. are added to such raw material mixture and the mixture is subjected to a reduction and diffusion treatment in an inert gaseous atmosphere. The rare earth-contg. alloy powder of which the main phase is the tetragonal crystal and which contains <=10,000ppm O, <=1,000ppm C and <=2,000ppm Ca is thus efficiently obtd.
Patent JP-H0795865-A (JP)
Title: Package of chilled-or frozen-type fish boiled with soy sauce
Inventor: SUZUKI SHIGERU
IPC: A23L17/00
Filed: 1993-09-29
Abstract: PURPOSE:To obtain the subject package enabling to recover its entirely original posture as soft boiled fish rich in broth, by heating with no crumbling and torn skin, by reinforcing the solidified broth inherent in fish boiled with soy sauce using a jelly liquor. CONSTITUTION:The characteristic of this package is that both boiled fish and the broth therefrom is monolithically put into a tray in such a state that the boiled fish is covered with a solidified product of the broth. In this case, the solidified product is a mixture of the broth and a broth-flavored jelly liquor. The boiled fish can be held in a tray with its body turned upside down. The tray to be used is pref. of oneway type. The solidified product and boiled fish may be in a frozen state.
Patent JP-H04151210-A (JP)
Title: Molding method for test model
Inventor: SASAOKA KIYOSHI
IPC: B29C39/26
Filed: 1990-10-15
Abstract: PURPOSE:To mold a transparent text model with its inner face of same shape as that of a product easily in a short period of time by forming a film layer of uniform wall thickness on a molded face of a male press mold for molding a thin material, also forming a similar mold based on said film layer as a reference by means of a silicone material and injecting a transparent synthetic resin material into a cavity formed between both molds. CONSTITUTION:A film layer S of uniform wall thickness is formed on a molded face of a male mold 1 for press molding, and a silicone female mold 2 is formed based on said film layer as a reference. A release layer 5 is formed on a face forming a cavity by the inner face of the female mold 2 and the outer face of the male mold 1, and the molds 1 and 2 are bonded together and a molten transparent resin material is injected into the cavity. Then the molds 1 and 2 are put into a vacuum chamber 10, vacummized and left as they are, and residual air in the cavity is exhausted, and the molds are transferred into a constant temperature chamber to cure the resin inside. Then the molds 1 and 2 are split and a molded test model W is released, and the release layer 5 is removed from the surface and lastly the transparent clear or transparent liquid resin is applied to effect vision through.
Patent JP-H04150661-A (JP)
Title: Original reader
Inventor: OOMORI MASATAKE
IPC: G03B27/54
Filed: 1990-10-15
Abstract: PURPOSE:To uniformize the density of a reading picture by interrupting light from a light source opposite to a photodetector surface when reading out an original, interrupting the light from the light source opposite to the original surface when correcting picture information, and arranging a movable object for interrupting an optical path which a photodetector is irradiated with a direct light from the light source arround the light source. CONSTITUTION:A light source 2 is arranged so that both of an original 4 surface is irradiated with the light and a photodetector 6 surface. When reading out the original 4, by rotating a movable object 7 for interrupting an optical path between the light source 2 and the photodetector 6, the light opposite to the photodetector 6 is interrupted and the original 4 is read out, and when correcting the picture information, by rotating the movable object 7 for interrupting the optical path between the light source 2 and the original 4, as interrupting the light from the light source 2 opposite to the original 4 surface, the photodetector 6 is irradiated directory with the light from the light source 2, and this direct light is read out by the photodetector 6, and the correction of the picture information is executed. Thus, without using a reference member to be the reference of a picture information correction, the uniform density can be obtained.
Patent JP-H03137768-A (JP)
Title: Document processor
Inventor: SAKAI YUMIKO
IPC: G06F17/21
Filed: 1989-10-24
Abstract: PURPOSE:To improve work efficiency since the reading and the meaning of a word and the like are displayed in a display part by providing a large capacity storage storing a Japanese dictionary. CONSTITUTION:Characters inputted from a keyboard 4 are sequentially KANA (Japanese syllabary)-KANJI(Chinese character)-converted by a KANA-KANJI conversion program stored in a floopy 8, are transmitted to a display controller 6 and are displayed in CRT 3. When an operator adjusts a cursor to a starting point and depresses the Japanese dictionary key of the keyboard 4 for checking the reading and the meaning of the word, the cursor draws an underline for the word. When the enter key of the keyboard 4 is depressed next, the reading and the meaning for the designated word are displayed.
Patent JP-H11106951-A (JP)
Title: Parts for ornament, ornament, electronic instrument and watch
Inventor: TSUKAMOTO WATARU
IPC: C23C28/00
Filed: 1997-10-08
Abstract: PROBLEM TO BE SOLVED: To provide parts for ornaments excellent in discoloring resistance, corrosion resistance or the like, and ornaments, electronic instruments and watches equipped with the parts. SOLUTION: Exterior parts 1 for watches are ones in which the surface of a base 4 is provided with a substrate 3 composed of at least one layer and a coating layer 9 composed of Pd or a Pd alloy, and on the surface of the coating layer 9, passive film 2 is formed. The passive film 2 can be formed by immersing it into a soln. of bichromate. As the passive film 2, the one in which color difference between the surfaces of the exterior part 1 for watches with and without the presence of the passive film 2 is regulated to <=1.8, particularly <=1.0 is preferable. Furthermore, the one in which the surface of the coating layer 9 is provided with a layer composed of Au or an Au alloy not contg. Ni is more preferable.
Patent JP-H07129951-A (JP)
Title: Magnetic recording medium
Inventor: FUJIWARA ICHIRO
IPC: G11B5/73
Filed: 1993-11-05
Abstract: PURPOSE:To attain superior lubricity by a lubricant layer independently of service environment, to maintain its lubricating effect over a long period of time and to ensure satisfactory traveling performance, wear resistance and durability by forming a mixed lubricant layer having a prescribed structure on a protective layer. CONSTITUTION:A magnetic metallic thin film 2 of Co-Ni and a carbon protective layer 3 are successively formed on a PET film as a non-magnetic substrate 1 and a mixed lubricant consisting of partially fluorinated alkylcarboxylic acid represented by formula I and a titanate coupling agent represented by formula II is stuck as a lubricant layer 4 on the protective layer 3 to obtain the objective magnetic recording medium. The titanate coupling agent has superior lubricating action but this action is deteriorated under severe environment at high temp. and high humidity or low temp. and low humidity. The deterioration of the lubricating action of the coupling agent and the increase of the coefft. of friction are inhibited by mixing the coupling agent with the partially fluorinated alkylcarboxylic acid and satisfactory traveling performance, wear resistance and durability are ensured.
Patent JP-H03136325-A (JP)
Title: Manufacture of semiconductor device
Inventor: TSUDA NAOYUKI
IPC: H01L21/265
Filed: 1989-10-23
Abstract: PURPOSE:To implant impurities into semiconductor, and perform impurity implantation and the etching of a silicon oxide film with high precision, by implanting ions by using a resist film as a mask via a thin silicon oxide film. CONSTITUTION:A thin silicon film 12 of 200-1000Angstrom  in thickness is formed on the surface of semiconductor 11, and resist 13 is spread thereon. A window 13a is formed in the resist 13 by using photolithography. Impurities 15 are implanted in the semiconductor 11 at the window part 13a by ion implanting method using the resist 13 as a mask. In said ion implantation, impurity ions to which acceleration energy capable of penetrating the silicon oxide film 12 is given are projected on the semiconductor 11. The silicon oxide film 12 at the window part 13a is etched and eliminated by etching using the resist 13 as a mask. The impurities 15 are thermally diffused, and an impurity diffusion layer 16 is formed with high dimension precision, and then a silicon oxide film is formed on the surface by CVD method.
Patent JP-H0588241-A (JP)
Title: Camera with built-in stroboscope
Inventor: NAKAMURA YOSHIO
IPC: G03B15/05
Filed: 1991-09-29
Abstract: PURPOSE:To make use of the merits of a flashmatic control system and a guide number control system with simple constitution and operation, to improve image quality, to optimize exposure, to shorten recharging time and to accomplish the power saving of a battery. CONSTITUTION:When a discrimination means discriminates that range-finding data by a range-finding means 4 is longer than a discrimination distance for selecting the flashmatic control and the guide number control, the light emission of a strobe light emitting means 8 is controlled under the control of a flashmatic control means 2. Meanwhile, when the discrimination means discriminates that the range-finding data L is shorter than the discrimination distance LFG, the emitted light quantity of the means 8 is controlled by a guide number control means 3. While control actions selected in such a way are executed, a shutter control is executed by a shutter control means 9 so as to perform film exposure. The above control systems are freely selected by an external operation means 11 instead of selecting them in accordance with the range-finding data.