baber/WOPTO huggingface dataset:
Patent JP-H06291459-A (JP)
Title: Manufacture of printed wiring board
Inventor: MURAKAMI ASAO
IPC: H05K3/40
Filed: 1993-04-01
Abstract: PURPOSE:To provide a method of manufacturing a printed wiring board in which the burr and the separation of a copper-plated layer are not caused and which has a semithrough hole whose connection reliability is high. CONSTITUTION:A part of a soft copper-plated layer 3 is removed in advance in the axial direction of a through hole 4 which becomes the edge of a semithrough hole 14, the burr and the separation of the copper-plated layer 3 are prevented from being caused by the rotation of a rooter bar 7 in a rooter working operation, and a printed wiring board which has the through hole 14 whose connection reliability is high is obtained.
Patent JP-H04262431-A (JP)
Title: File management apparatus
Inventor: TOKUNAGA TOSHIRO
IPC: G06F12/00
Filed: 1991-02-15
Abstract: PURPOSE:To make it possible to carry out file management efficiently by reducing user's work required for selecting an unnecessary file and for preparing a backup file. CONSTITUTION:An internal file sweepout means 4, when a used area in an internal storage medium (fixed disk unit 5) exceeds a predetermined quantity, makes a request for writing to the internal storage medium wait once, while the internal file sweepout means 4 reads out low significance files from the internal storage medium and sweeps the read files outside until a constant amount of vacant area is available, and when low significance files are swept out from the internal storage medium and a constant amount of vacant area is opened available therein, the internal file sweepout means 4 allows the file management apparatus to execute the write request that has been made to wait. An external backup means 7 stores files swept out from the internal file sweepout means 4 in an external storage medium 9 to backup.
Patent JP-H05240378-A (JP)
Title: Jointing structure between hydraulic piping joint and hydraulic machine
Inventor: SUZUKI KOJI
IPC: F16L15/00
Filed: 1992-02-26
Abstract: PURPOSE:To provide a function to absorb vibration from a hose and the like which is connected to a pipe joint, for the pipe joint which is installed in the hydraulic machine. CONSTITUTION:A ring-shaped screw relief groove 7, a male screw 6, and a seat surface 4 are formed in order toward the terminal side on the outer periphery of the installation side end part of an elbow body 1 which is a pipe joint. A female screw 10, a ring-shaped screw relief groove 11, a seat surface 13 are formed in order toward the opening end side on the inner periphery of the connecting port 8 of the hydraulic machine 8. Besides, an O ring which is interposed between both the seal surfaces 4 and 13 is pressurized by screwing the male screw 6 of the elbow body 1 into the female screw 10 of the hydraulic machine 8, and when screwing is completed, the male screw 6 is engaged with the screw relief groove 11 in the hydraulic machine 8 and the female screw 10 is engaged with the screw relief groove 7 in the elbow body 1 so as to rotate freely.
Patent JP-H05238008-A (JP)
Title: Ink jet head
Inventor: NISHIGAKI HIDEO
IPC: B41J2/045
Filed: 1992-02-27
Abstract: PURPOSE:To reduce noises in operation of piezoelectric elements, and to prevent deterioration of printing quality with ink drops maintained in appropriate sizes. CONSTITUTION:Leading edge of a clock signal in 16kHz driving frequency generated by a clock oscillation device is detected, and an ejection nozzle whose pressure chamber is supplied with ink and an ejection nozzle whose pressure chamber is not supplied with ink are driven alternately. Namely, the ejection nozzle to which the ink is supplied and the ejection nozzle to which the ink is not supplied are driven alternately on 8kHz frequency. Therefore, the ink jet head is driven as a whole on 16kHz, reducing noises produced in operation of the head.
Patent JP-H01251647-A (JP)
Title: Semiconductor package
Inventor: SASAKI TOMIYA
IPC: H01L23/04
Filed: 1988-03-31
Abstract: PURPOSE:To obtain a semiconductor package also applicable to large power supplying, by dispersing a plurality of small-sized semiconductor chips, putting them between a cathode electrode and an anode electrode, jetting cooling liquid and making it collide against the recessed part of a thin metal plate. CONSTITUTION:A plurality of small-sized semiconductor chips 3 are dispersed, and put between a copper cathode electrode 1 and a copper anode electrode 2. Inner parts of the cathode electrode 1 and the anode electrode 2 form a cavity, which constitutes a vessel together with a thin copper plate 6 arranged on the side interposing the small-sized semiconductor chips 3. The thin copper plate 6 has a recessed part, and the same number of nozzles 4 as the small-sized semiconductor chips 3 are arranged on both sides of the cathode electrode 1 and the anode electrode 2, in order to jet insulative cooling liquid 5, e.g., freon liquid, and make it collide against the small-sized semiconductor chips 3. Since the small-sized semiconductor chips 3 are used, the manufacturing yield is excellent even in the case of larger electric power. By the effect of the recessed part arranged on the thin copper plate 6, all the thermal distortion with the small-sized semiconductor chips 3 can be absorbed.
Patent JP-H06264149-A (JP)
Title: Production of high strength galvannealed steel sheet for deep drawing, having baking hardenability
Inventor: MIYAHARA MOTOYUKI
IPC: C22C38/00
Filed: 1993-03-09
Abstract: PURPOSE:To produce a high strength galvannealed steel sheet for deep drawing, excellent in tensile strength, particularly in deep drawability, causing no powdering at the time of press forming, excellent in adhesion, and having baking hardenability. CONSTITUTION:A steel, which has a composition consisting of, by weight, 0.0005-0.004% C, <=0.10% Si, <=0.5% Mn, <=0.050% P, <=0.20% S, 0.020-0.120% Al, <=0.005% N, 0.8-2.0% Cu, 0.2X7.75(C-0.005) to 7.75(C-0.0005)% Nb, Ni by the amount satisfying the relation in 0.3<=Ni/Cu<=1.0, Ti or B by the amount satisfying 0.5X3.43N<=Ti<=1.5X3.43N or 0.5X0.8N<=B<=1.5X0.8N, and the balance iron with inevitable impurities, is used. After finish rolling is finished at a temp. not lower than the Ar3 transformation point, coiling is done at >=500 deg.C to precipitate Cu. Then, pickling and cold rolling are done. The resulting steel sheet is annealed at a temp. between the recrystallization temp. and the Ar3 transformation point, hot-dip-galvanized, and subjected to galvannealing treatment.
Patent JP-S61233505-A (JP)
Inventor: KITASHIRO YOUSUKE
IPC: B28B13/02
Filed: 1985-04-09
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-S572242-A (JP)
Title: Preparation of 2-bromo-2-nitro-1,3-propanediol
Inventor: HARAKAWA MICHIO
IPC: C07C201/12
Filed: 1980-06-06
Abstract: PURPOSE: To obtain the titled compound in high purity and in high yield, by reacting nitromethane with formaldehyde using a mixed solvent or water and methanol or ethanol and utilizing an alkali hydroxide both for a catalyst and a salt-forming substance, followed by bromination.  
     CONSTITUTION: 1 Mole nitromethane is reacted with 2 or more mole formaldehyde in a mixed solvent of water and methanol or ethanol (a weight ratio of alcohol/ water 0.5W4) in the presence of an alkali hydroxide, to give a reaction product, which is brominated to give the desired compound.  
     EFFECT: The reaction is carried out relatively mildly and smoothly with easy control and at low cost. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H06266848-A (JP)
Title: Method for finding out tangent of measured characteristic curve
Inventor: USUDA KOICHI
IPC: G01D1/10
Filed: 1993-03-11
Abstract: PURPOSE:To simply and accurately find out the tangent at an optional data point on a characteristic curve of a characteristic measuring instrument by finding out a tangent at a specified data point by a specific formula. CONSTITUTION:An input means 22 sets up a cursor on a data point P optionally specified on a characteristic curve displayed by a display means 24. A control and calculation means 20 finds out the X and Y coordinate points of the data point PN. Then the X and Y coordinate values of two data points PN-1, PN+1 adjacent to both the sides of the data point PN on the characteristic curve are found out. A curve passing the three points PN-1, PN, PN+1 is found out by an interpolation method using the X and Y coordinate values of these three points. A spline interpolation method is optimum to this interpolation method. A tangent on the specified data point PN is found out based upon the found formula. The found tangent is displayed on a display means 24.
Patent JP-S57193609-A (JP)
Title: Earthquake-proof building structure with reinforced levee for disaster countermeasure purpose
Inventor: SHIBATA SABUROU
IPC: E02B3/04
Filed: 1981-05-22
Abstract: PURPOSE:To utilize a levee even as emergent shelter as well as for its original function by a method in which a three-dimensional structure of a comparatively high and strong levee is constructed and various facilities are installed inside the levee. CONSTITUTION:On the outside of the riverbed, a comparatively high and strong levee having excellent earthquake-resistant structure is constructed. The inside of the levee is divided into a large number of chambers. A part of the chambers is used water storage chamber, and the other paet is provided with as underground facilities medical facilities, e.g., hospital, etc., education facilities, communication center, cultural center, sport center, the headquater or others of government and public offices 8, and food warehouse 7, as well as a common trench 4 for piping, wiring, etc. On the other hand, on the upside of the levee, facilities, e.g.,  heliport, air port, etc., and roads are provided.
Patent JP-H11261064-A (JP)
Title: Power mosfet circuit
Inventor: SAITO HIRONORI
IPC: H01L21/8234
Filed: 1998-03-10
Abstract: PROBLEM TO BE SOLVED: To enable the withstand voltage of a power MOSFET provided to a voltage limiting circuit to be measured. SOLUTION: A depleting-type MOSFET 6 connected to a gate terminal 8 and a voltage limiting circuit 5 serving as an active clamp are connected in series between the drain and gate of a power MOSFET 4. When a load is driven by the power MOSFET 4, the terminal 8 is opened, and the MOSFET 4 is kept in a normally-ON state, and when an overvoltage such as a surge or the like occurs, the drain-source of the Power MOSFET 4 is clamped by the voltage limiting circuit 5. When the withstand voltage of the MOSFET 4 is measured, a prescribed voltage is applied to the terminal 8 to turn the MOSFET 6 off, the voltage limiting circuit 5 is put into an inactive state, and a drain-source breakdown voltage is measured when a sink current is applied to the drain of the MOSFET 4 kept in the OFF state.
Patent JP-H01251168-A (JP)
Title: Image filing system
Inventor: YAMAMOTO MASAKAZU
IPC: G06F17/30
Filed: 1988-03-31
Abstract: PURPOSE:To easily and quickly read documents printed on both sides by using a means which reads continuously even or odd pages and then inverting vertically a document as a whole to read continuously the other pages. CONSTITUTION:An image scanner 1 works to read image data on a first even page and to expand the image data to a page memory 3 for display it on an image display device of a WS 7. When an operator delivers an instruction for confirmation, the data on the memory 3 is written in an optical disk device 4 and at the same time an image number is given said data. Then this data is stored/registered in a page information memory 8 as the first even page. When the registration of all even pages is ended, forms having reading jobs ended are vertically inverted and reset on an automatic form feeding device so that the odd pages are read. Thus the odd pages are registered in the same way as the even pages.
Patent JP-H01251963-A (JP)
Title: Display device for moving object locus
Inventor: KYO MASAAKI
IPC: H04N5/262
Filed: 1988-03-31
Abstract: PURPOSE:To make a special circuit for displaying the locus of moving object unnecessary and to simplify a circuit configuration by displaying the locus of the moving object using a noise reducer circuit. CONSTITUTION:An input video signal is multiplied by (1-K) (0<K<1) at a noise extracting circuit 1, and a delay signal is multiplied by K and added. An input video signal X and a video signal delayed for one-frame (field) time are subtracted by a first subtracting circuit 12 by using this noise reducer circuit. Thereafter, an object is regarded as the moving object when the level of an obtained difference signal (e) is large, and the locus of the moving object is displayed by successively adding a moving part for every frame (field) after prescribed non-linear processing is executed. Thus, the complicated circuit for extracting and displaying the locus of the moving object becomes unnecessary.
Patent JP-S62235366-A (JP)
Title: Green pigment for filter
Inventor: ITO NAOTO
IPC: G02B5/22
Filed: 1986-04-04
Abstract: NEW MATERIAL:The compound of formula I (R<1>-R<10> are H, alkyl, halogen, alkoxy, or hydroxyalkyl). EXAMPLE:The compound of formula II. USE:Green pigment for optical filter. The coloring substrate is e.g. a thermoplastic resin such as PS, PE, PP, acrylic resin, etc., a thermosetting resin such as amino resin, phenolic resin, etc., alumina film, silica film, etc. PREPARATION:The objective compound can be produced e.g. by mixing 4,5- dinitro-1,8-dihydroxyanthraquinone, aniline and boric acid, reacting the components at 150 deg.C for 7hr, pouring the reaction liquid into methanol, separating the precipitated crystals by filtration and purifying with a column.
Patent JP-2000273947-A (JP)
Title: Building method
Inventor: KIMURA SUTAA
IPC: E04B1/16
Filed: 1999-03-19
Abstract: PROBLEM TO BE SOLVED: To facilitate construction of a building having high accuracy and high quality, and to reduce construction costs and shorten a construction period. SOLUTION: In a wall plate 1 constituted of a vertically supported concrete panel, a form 2 using the internal surface of the wall plate as one side wall is horizontally extended. The wall plate 1 supports a roof plate 8 or a floor plate 20 which is formed of a concrete panel, such that an end 8a protrudes into the form. Then, concrete is placed in the form, to thereby form a concrete beam 18 for supporting the wall plate and the roof plate or the floor plate.
Patent JP-S522278-A (JP)
Title: Device of bonding nail head of wire
Inventor: SHIMATA TSUTOMU
IPC: H01L21/60
Filed: 1975-06-24
Abstract: PURPOSE: To bond nail head in an nitrogen atmosphere and to prevent the oxidation of lead frame by feeding oxygen to the flame of a torch mechanism. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S58193233-A (JP)
Inventor: DEMUKAI MAKOTO
IPC: B65B51/10
Filed: 1982-05-07
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-S61235887-A (JP)
Inventor: EBIZUKA KIYOSHI
IPC: G06F3/048
Filed: 1985-04-11
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-H02254633-A (JP)
Title: Stored information reproducing device
Inventor: TANAHASHI YUTAKA
IPC: G11B20/10
Filed: 1989-03-28
Abstract: PURPOSE:To detect a pit in which margin for reproducing is deteriorated by checking whether or not a zero cross point of a differential waveform corresponding to the peak position of a reproducing analog signal and the zero cross points of thresholds just before and after the former zero cross point exist in the same data discrimination window. CONSTITUTION:A signal amplitude decision circuit 401 outputs a signal in which the zero cross point which appears just after the amplitude of the positive side of a differential signal (b) becomes equal to or exceeding a specified value is taken as a peak point as the decided result to a coincidence detection circuit 403. A zero cross comparison circuit 402 outputs the result obtained by comparing the differential signal (b) with a zero level to the coincidence detection circuit 403. Then, a peak signal (c) obtained from conditions that both of them are coincident is inputted in a window generation circuit 5 and a data discrimination circuit 6 so as to generate a data discrimination window signal (d) whose phase of last transition is made to synchronize with the first transition, and data is discriminated from the peak signal (c) by setting the signal (d) as a reference. Thus, that the same stored information can not be reproduced by the difference of the S/N of a device is prevented and satisfactory reproducing error rate is secured.
Patent JP-H03279349-A (JP)
Title: Production of unsaturated diester
Inventor: TSUJI AKIHIRO
IPC: C07C67/10
Filed: 1990-03-27
Abstract: PURPOSE:To obtain the subject compound by reacting a conjugated diene with a carboxylic acid and O2 while adding a specific amount of an organic halogen compound into a system according to a fluidized bed reaction method for fluidizing a specified supported type palladium-based catalyst in a powdery form with a reaction gas. CONSTITUTION:A supported type palladium-based catalyst in which palladium, antimony, vanadium, an alkali metal carboxylate and an alkali metal halide are supported on a suitable carrier is used as a catalyst and a mixed gas composed of a conjugated diene, a carboxylic acid, oxygen and an organic halogen compound (in an amount of 100-700wt. ppm based on the above-mentioned carboxylic acid) is reacted in a fluidized bed having the aforementioned catalyst to afford an unsaturated diester. Chlorine derivatives of carboxylic acids and/or chlorine derivatives of methane are especially preferred as the organic halogen compound. The unsaturated diester can be produced with excellent productivity for a long period by the above-mentioned method.
Patent JP-H09263762-A (JP)
Title: Method and apparatus for controlling travelling speed of moving machine for coke oven operation
Inventor: YOSHIDA SHIGEKI
IPC: G05D13/62
Filed: 1996-03-29
Abstract: PROBLEM TO BE SOLVED: To correctly control the travelling speed in the accelerated or decelerated state of a moving machine for coke oven operation without being affected by wheel slip and skid. SOLUTION: The travelling distance Lc from the starting point of acceleration or decelearation is calculated in a travelling-distance calaculating circuit 13b on the basis of the number of revolutions of a driving wheel, etc., of a moving machine for coke oven operation, and the calculation: Vc =(2αLc +V0 <2> )<1/2> is performed in a speed command value calculating circuit 18 on the basis of the acceleration and deceleration change rate α and the speed V0 at constant- speed travelling to give a speed command value Vc in acceleration or deceleration. The speed of an electric motor 3 driving a driving wheel 2b is controlled with a speed control apparatus 23 on the basis of the difference between the value Vc and the actual speed sent from a speed calculation circuit 16.  After the speed control, a fine speed control is performed; then the motor is brought into the state of inertial running at the vicinity of the stop position; and when the stop position is detected with a stop position detecting mechanism, the brake mechanism is brought into operation.
Patent JP-H06290945-A (JP)
Title: Filter element
Inventor: NAKAO AKIRA
IPC: H01G4/40
Filed: 1993-04-05
Abstract: PURPOSE:To realize a filter element at a low cost through a simple manufacturing process by method wherein insulated conductor wires are successively wound on a core, and the both ends of the one conductor wire and the one end of the other conductor wire are connected to the corresponding terminals. CONSTITUTION:Three terminals 5A, 5B, and 5C are provided to a core 11 possessed of a cylindrical barrel 12. Two insulated conductors 1A and 1B of conductor wires are successively wound in parallel on the outer circumferential surface of the barrel 12 of the core 11. Both ends of the conductor 1A and the one end of the conductor 1B are connected to the corresponding terminals 5A, 5B, and 5C. By this setup, a filter element can be manufactured at a low cost through a very simple manufacturing process.
Patent JP-2000276966-A (JP)
Title: Movable contact body and its manufacture
Inventor: SATO TAKESHI
IPC: H01H13/52
Filed: 1999-03-23
Abstract: PROBLEM TO BE SOLVED: To provide a movable contact capable of exactly executing contact switch functions irrespective of the size of a contact and provide a manufacturing method thereof. SOLUTION: In this movable contact, an electrical short circuit is made in a pair of comb teeth-shaped electrodes of a contact 31a by causing conductive carbon ink 22 printed on a circular contact part 20 to abut on the fixed contact 31a, thus providing a function of a contact switch. Prior to the printing of the ink 22, a substantially circular dish-shaped recessed surface 21 is formed on an ink-print end of the contact 20 of the movable contact body 11. A flat part 21a is provided substantially in a middle of the recessed surface 21. The liquid carbon ink 22 is printed on the recessed surface 21 by a predetermined pin and solidified, thus forming the contact 20. The film thickness of the ink 22 is increased by the depth of the recess of the recessed surface 21. Also, an arc-shaped contact 23 is formed in a similar manner.
Patent JP-S61234839-A (JP)
Inventor: TANAKA TOSHITAKE
IPC: A61B5/01
Filed: 1985-04-11
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-H01250414-A (JP)
Title: Conjugate monofilament and production thereof
Inventor: KIRIYAMA SHUNICHI
IPC: D21F7/08
Filed: 1988-03-29
Abstract: PURPOSE:To provide the title fiber consisting of a nylon 46 polymer and another polyamide, having specific sectional shape and specific physical properties, excellent in mechanical strength characteristics, good in hydrolysis resistance and dimensional stability, produceable in high productivity. CONSTITUTION:Firstly, (A) a nylon 46 polymer >=0.8 in relative viscosity and (B) another polyamide are each put to melt spinning and passed through a hot cylinder 250-400 deg.C in temperature and 50-500mm in length just under the spinneret followed by take-up in a warm water bath at >=60 deg.C. Thence, the resultant yarn is subjected to multistage drawing by drawing means including a liquid bath at >=60 deg.C and put to shrinking treatment of 5-15%, thus obtaining the objective fiber having the following characteristics: 1. the component B is surrounded by the component A, 2. the area of the component B accounts for 5-60% of the fiber sectional area, 3. loop strength ratio L1/L2...>=0.75 4. linear strength retention rate T2/T1...>=85% 5. boiling water shrinkable rate  S...>=5% (T1 is linear strength; L1 is loop strength; T2 is linear strength after wet heat treatment at 120 deg.C with a steam of 1kg/cm<2>G) 6. diameter ...0.1-3mm.
Patent JP-S60220351-A (JP)
Title: Photosensitive body for electrophotographic copying device
Inventor: YAMAMOTO AKIRA
IPC: G03G5/00
Filed: 1984-04-17
Abstract: PURPOSE:To obtain a photosensitive device which is free from drop-out without spoiling the potential stability thereof by changing continuously the concn. of Te in the thickness direction of the Se-Te photosensitive body so that the concn. of Te is maintained within a 15-30% range in the region of 1mu thickness from the surface. CONSTITUTION:The Se-Te photosensitive layer having 20-120mum thickness is provided on a substrate. The concn. of Te in the thickness direction of the photosensitive layer increases relatively gently from about 2-7% in the psition of about 10mum from the surface of the position of about 2mum from the surface. The concn. increases and changes slightly sharply and continuously up to the surface thereafter and the concn. of Te in the region of about 1mum from the surface is maintained within the 15-30% range. The image having high quality without drop-out is thus inexpensively obtd.