baber/WOPTO huggingface dataset:
Patent JP-S63127423-A (JP)
Title: Magnetic recording medium
Inventor: MITSUI KEITARO
IPC: C09D7/12
Filed: 1986-11-17
Abstract: PURPOSE:To permit formation of a magnetic layer for data protection with one time of a coating stage by using a magnetic coating compd. prepd. by incorporating low- coercive force powder with high-coercive force powder having 2-10 times the difference in the coercive force of the magnetic powder at the ratio equal to or higher than the ratio of the high-coercive force powder. CONSTITUTION:The difference in the coercive force between the magnetic powder having the high coercive force and the magnetic powder having the low coercive force is specified to 2-10 times at the time of forming the magnetic layer of a medium which can record true data and false data. The mixing is executed at the ratio of the low-coercive force powder equal to or higher than the ratio of the high-coercive force powder to prepare the mixed coating composed thereof. The false data is recorded only on a low-coercive force magnetic material if the true data is recorded on such magnetic layer by the magnetic field stronger than the magnetic field of a high-coercive force magnetic material and the false data is recorded thereon by the magnetic field weaker than the magnetic field of the high-coercive force magnetic material and stronger than the magnetic field of the low-coercive force magnetic material. The coating stage of the magnetic layer is, therefore, executed once and the cost of production is reduced.
Patent JP-H01115817-A (JP)
Title: Production of high-purity magnesium carbonate
Inventor: HOSAKA KOJI
IPC: C01F5/24
Filed: 1987-10-30
Abstract: PURPOSE:To obtain high-purity magnesium carbonate, by adding a small amount of an alkali carbonate to an aqueous solution of a water-soluble magnesium salt, crystallizing crude magnesium carbonate, separating, removing, adding >=a theoretical amount of ammonium carbonate to the purified aqueous solution of magnesium and crystallizing purified magnesium carbonate. CONSTITUTION:A water-soluble magnesium salt (e.g. magnesium chloride) is dissolved in water and reacted with 0.06-0.2 as much as the theoretical amount of an alkali carbonate (e. g. ammonium carbonate) to crystallize crude magnesium carbonate, which is separated and removed. Then the prepared aqueous solution of magnesium is reacted with >= the theoretical amount of an aqueous solution ammonium carbonate to crystallize purified magnesium carbonate, which is filtered and washed to give high-purity magnesium carbonate. The prepared high-purity magnesium carbonate is preferably used as a raw material for high-purity magnesium fluoride useful especially for optical parts.
Patent JP-H0992133-A (JP)
Title: Manufacture of plasma display panel
Inventor: TANAKA YOSHITO
IPC: H01J9/02
Filed: 1995-09-27
Abstract: PROBLEM TO BE SOLVED: To form a magnesium oxide film having <111> orientation being a protective film for obtaining an excellent discharge characteristic by protecting a dielectric layer, at a low temperature with high throughput, in a manufacturing method of an AC type plasma display panel(PDP). SOLUTION: In the case of forming a protective layer of a magnesium oxide to protect a dielectric layer from ion bombardment by plasma discharge by contacting with a discharge space of PDP, high frequency voltage is impressed on a base board holder 13 in a chamber 15 from a power source device 12, and plasma discharge is generated on a surface of a base board. In this condition, the magnesium oxide is evaporated from a crucible 18 by using a thermoelectron flow 16, and a magnesium oxide film is formed on a surface of the base board by an evaporation method. Since plasma discharge is generated, even at a low base board temperature of about 180 deg.C, the magnesium oxide film can be formed with high throughput by the evaporation method. The magnesium oxide film having <111> orientation has an action to reduce driving voltage of an AC type PDP since a secondary electron emitting factor is high. Particularly, it is suitable for manufacturing a plasma display panel having the large area.
Patent JP-H03135622-A (JP)
Title: Image processor
Inventor: KOBAYASHI KENICHI
IPC: G06F3/14
Filed: 1989-10-20
Abstract: PURPOSE:To easily produce an image of a desired reduction ratio by controlling the write address of an input picture signal given to a memory in response to the output of a process means which performs a processing in accordance with the numerator of the reduction ratio given from a setting means. CONSTITUTION:An n-divider 7 performs the control in response to the denomina tor (n) of the reduction ratio received from a setting means 8 which sets the vertical and horizontal reduction ratios. The processing means 101 - 10n perform the processings in response to the numerator (m) received from the means 8 by means of the output of the n-divider 7. Then the write address of the input picture signal given to a memory 4, i.e., an address counter 12 is controlled in accordance with the outputs of means 101 - 10n. Thus an image of a desired reduction ratio is easily obtained with optional control of the n-divider 7 corre sponding to the denominator of the reduction ratio and the means 101 - 10n corresponding to the numerator of the reduction ratio respectively.
Patent JP-2001087263-A (JP)
Title: Transmission circuit of ultrasonograph
Inventor: KIKUCHI HIROMICHI
IPC: A61B8/00
Filed: 1999-09-28
Abstract: PROBLEM TO BE SOLVED: To solve a problem of heating, and amplify an optional waveform in a transmission circuit of an ultrasonograph. SOLUTION: A pedestal clamp circuit (a bias setting circuit) 30 generates a pair of pedestal clamp pulses (bias pulses) Vb1, Vb2 each having a pulse width corresponding to an original transmission signal and having a bipolar symmetric property. A pseudo-linear amplifier 32 sets a bias point according to a level of the pedestal clamp pulses Vb1, Vb2, and linearly amplifies the original transmission signal only in a period of the pulses to thereby become 0 bias on the outside of the pulse period so as to remove useless electric power consumption as well as to eliminate a problem of heating. The pseudo-linear amplifier is desirably composed of a high speed negative feedback type linear amplifier having a bipolar symmetric property.
Patent JP-S62133445-A (JP)
Title: Resist composition of two-layer structure
Inventor: SAITO KAZUMASA
IPC: G03F7/075
Filed: 1985-12-05
Abstract: PURPOSE:To enhance resistance to oxygen plasma by controlling the polymerization degree of a vinyl silane polymer and mixing it with a conventional resist. CONSTITUTION:The reason why the silicone polymer is not uniformly mixed with the conventional resist materials is in the high polymerization degree of the silicone polymer, and the polymer low in polymerization degree is sufficiently mixed with them. Accordingly, a vinyl silane monomer having a vinylsilane bond and a substituent combining with the Si atom composed of 1-3 C alkyl, phenyl, or H undergoes anion polymerization regulated in polymerization degree, and this polymer is uniformly mixed with the conventional resist and used for the upper layer resist of the resist composition of 2-layer structure, thus permitting the upper layer resist superior in oxygen plasma resistance to be formed.
Patent JP-H10102368-A (JP)
Title: Phenolic resin molded felt
Inventor: KURIMOTO YOSHIAKI
IPC: D04H1/655
Filed: 1996-09-25
Abstract: PROBLEM TO BE SOLVED: To obtain the subject felt with high mechanical strength, low in smoke generation during its press molding, by using, as a binder, a novolak type phenolic resin produced by the use of an oxycarboxylic acid as catalyst. SOLUTION: This felt is obtained by pressure molding of a fibrous material by the use of, as binder, a novolak-type phenolic resin of low content (pref. <=0.1wt.%) of unreacted phenolic compounds produced by the use of an oxycarboxylic acid bearing both carboxyl and alcoholic hydroxyl groups in one molecule as catalyst (e.g. tartaric acid, citric acid).
Patent JP-H01114702-A (JP)
Title: Measuring method for length of tubular object
Inventor: MATSUMOTO NOBUO
IPC: G01B5/02
Filed: 1987-10-29
Abstract: PURPOSE:To realize a method for measuring the length of a tubular object by running a running car to which the start end of a tape measure has been fixed, from one end in the tubular object to the other end, and also, detaining the start end of the tape measure to the other end of the tubular object. CONSTITUTION:A running car 1 is provided with a driven front wheel 2 and a driving rear wheel 3, and runs from one end to the other end through the inside of a tubular object P by a remote control by radio. In this state, when the front wheel 2 is about to be detached from the other end of the tubular object P, a stopper 4 is detained to the other end face of the tubular object P and the running car 1 stops. In this case, to the stopper 4, the start end of a tape measure 5 is connected, and a measuring worker draws the tape measure 5 by one end side of the tubular object P and strains it, reads the graduations of the tape measure 5, and can know length of the tubular object P. After the measurement, when the running car 1 is started for a backward motion, the front wheel 2 runs on the inside of the tubular object P and the detainment is detached, and the running car 1 moves backward and collected from one end of the tubular object P.
Patent JP-H11218047-A (JP)
Title: Control device for engine
Inventor: NISHIMURA HIROBUMI
IPC: F02D41/34
Filed: 1998-09-29
Abstract: PROBLEM TO BE SOLVED: To enhance uniformity of fuel distribution in a combustion chamber when an engine is operated in a stratified charge combustion state in a low load area and in an uniform combustion state in other region, to enhance stability by increasing a combustion speed, and to further improve fuel consumption and reduce an NOx discharge amount by enlarging an exhaust returning limit. SOLUTION: When an engine is in an operation region in a homogeneous combustion state, at the suction stroke of a cylinder, two-division injection of fuel from a fuel injection valve is effected such that a central timing (m) between an early injection starting timing s1 and a rear stage injection starting period s2 is earlier than a suction stroke central timing M and a part of exhaust gas is caused to return to an intake passage by a fuel returning device. The opening of an exhaust returning control valve is controlled such that an exhaust return rate is regulated to a maximum approximate 20-40%.
Patent JP-H03140630-A (JP)
Title: Synchromesh mechanism for manual transmission
Inventor: KONO TADAO
IPC: F16H3/12
Filed: 1989-10-21
Abstract: PURPOSE:To prevent any wear acceleration from occurring with certainly by letting a coupling sleeve secure its width for loosely sliding against a pressing means which presses a synchronous ring to the side of a main gear, and preventing any contact between the synchronous ring other than shift operating time and the main gear. CONSTITUTION:A clearance W is provided in space between chamber surfaces 23B at both ends of an inner spline 23A of a main reverse gear 23 and bulged parts 24A at both ends of an insert spring 24, while each of main first and second gears 25, 26 with conical parts 25A, 26B and clutch gear 25B, 26B is installed at both sides of the main reverse gear 23. In addition, both first and second synchronous rings 27 and 28 are interposed between these gears 25, 26 and the main reverse gear 23, making the main first gear 25 to be normally engaged with an input second gear on the input shaft, and then the main reverse gear is connected to an input reverse gear via a reverse idler gear. Accordingly, any contact between the synchronous rings 27, 28 other than shift operating time and the main gears 25, 26 is kept back so that wear acceleration is surely preventable in this way.
Patent JP-H10119275-A (JP)
Title: Ink jet recording head
Inventor: KAWAMURA SHOGO
IPC: B41J2/05
Filed: 1996-10-17
Abstract: PROBLEM TO BE SOLVED: To control rise in temperature of a recording element substrate by preventing corrosion of a heat radiation component by a method wherein a part or the whole of four directional end faces of the recording element substrate is brought in contact with the heat radiation component. SOLUTION: A heating resistant element layer, wiring, etc., are patterned on a silicon wafer by a photolitho technique, a nozzle wall and a discharge opening 2 are formed of photosensitive resin, and a recording liquid feed route 6 is formed by anisotropic etching to form a recording element substrate. The recording element substrate 1 is connected to a wiring substrate 4 for receiving a recording signal. Further, the recording element substrate 1 is connected to a molding component 7 forming the recording liquid feed route 6 to form an ink jet recording head. The recording element substrate 1 comes to have a structure of being enclosed with a heat radiation component 8, and rise in temperature of the recording element substrate 1 is prevented.  Further, since all the rear face is fixed to the molding component 7 by bonding, possibility of corrosion caused by recording liquid of the heat radiation component 8 is entirely gone.
Patent JP-S62136552-A (JP)
Title: Rare earth element-iron type permanent magnet alloy
Inventor: INOKOSHI YOSHIO
IPC: H01F1/053
Filed: 1985-12-06
Abstract: PURPOSE:To obtain a permanent magnet alloy having superior temp. characteristics, superior environmental resistance and high reliability without deteriorating high magnetic characteristics peculiar to a rare earth element-iron type permanent magnet alloy by adding Ni to the alloy. CONSTITUTION:This permanent magnet alloy consists of one or more kinds of rare earth elements (R) other than Sm, Er and Sc, B, Ni and Fe and is represented by the formula (where 13<=x<=18, 6<=y<=10 and 5<=z<=15). The permanent magnet alloy has superior corrosion and heat resistances, superior temp. characteristics and high magnetic characteristics.
Patent JP-S61155862-A (JP)
Title: Current transformer
Inventor: UEDA RYUZO
IPC: H01F38/20
Filed: 1984-12-28
Abstract: PURPOSE:To obtain a device which is used for both AC and DC currents and transforms even a fine current with high precision by providing the 1st - the 4th windings, etc. CONSTITUTION:A transformer 1, a magnetic flux detecting circuit 4, a current amplifier 7, etc., are provided. The transformer 1 is constituted by providing primary winding 11, secondary winding 12, tertiary winding 13, and quadratic winding 14 around a core 15. The voltage induced across the winding 14 when a current I1 to be detected is zero is based upon an exciting current Iex and magnetism characteristics of the core 15, so the magnetism characteristic curve of the core 15 is symmetric between a plus and a minus side. The induced voltage of the winding 14 is also symmetric between a plus and a minus side and the asymmetric detection output of the circuit 4 is zero. When the current I1 is not zero, the core 15 is biased according to the level of the current. Consequently, positive and negative crest values of the voltage induced across the winding 14 are different. Therefore, when only a positive and a negative voltage whose amplitude are larger than some value are considered, it is known how the core 15 is biased by the current I1. For the purpose, a current I2 is flowed to the winding 12 by using an amplifier 7 so that the bias of the core 15 is zero, and then the level and polarity of the current I1 are known.
Patent JP-H02122186-A (JP)
Title: Freezer
Inventor: NAKAYAMA MIKIHIRO
IPC: F25D23/00
Filed: 1988-10-31
Abstract: PURPOSE:To prevent the stored foodstuff from adhering to the side surface of the inner box due to freezing and facilitate the removal of the foodstuff by providing a plastic drainboard having a bottom and two side members, the bottom of the drainboard being narrower than that of the inner box of the freezer casing. CONSTITUTION:The device consists of a freezer cabinet 1 having an open top, a lid 2 which covers the opening and a plastic drainboard 9 having two side members. The bottom of said drainboard 9 is made narrower than that of the inner box of the freezer casing 1. When the foodstuff 8 is placed on the bottom of the drainboard 9, it will not adhere by freezing to the side surface of the inner box 4 even if it leans thereto. Further, because the bottom of the drainboard 9 is narrower than that of the inner box 4, it is easy to remove the foodstuff 8. Moreover, even when the foodstuff 8 adheres to the other side surface of the inner box 4 which is not covered by the drainboard 9, the foodstuff 8 can easily be removed by lifting the drainboard 9 by its side members.
Patent JP-H05113098-A (JP)
Title: Driving direction detection mechanism in propulsive embedding equipment of pipe
Inventor: KAWARA MASAYA
IPC: E21D9/06
Filed: 1991-10-23
Abstract: PURPOSE:To enable a driving direction at the forced propulsion of a pilot pipe to be detected simply and accurately. CONSTITUTION:Each of the specified numbers of pilot pipes 4 is connected to a pilot head 3 performing the compression and removal or excavation of earth and sand, and two illuminants 23, 27 are set up in an inner part of one of these pilot pipes 4 separately in two spots in the axial direction as varying their setup modes. At the forced propulsion of the pilot pipes 4, each position of both these illuminants 23, 27 is recognized by a camera means positioned in a starting shaft, and the driving direction is controlled as detecting the extent of dislocation between both these illuminants 23, 27 and a pipe buried planning line.
Patent JP-S62134997-A (JP)
Inventor: MORIMOTO RYOICHI
IPC: H05K3/46
Filed: 1985-12-07
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-H01120486-A (JP)
Title: Slide ring for mechanical seal
Inventor: AIBA YOSHIRO
IPC: F16J15/34
Filed: 1987-10-30
Abstract: PURPOSE:To improve wear resistance and heat resistance of a mechanical seal by forming outer periphery portion of a sliding ring for mechanical seal of silicone nitride ceramics which has a cristal phase and specified value of density Young's modulus, Vickers hardness and three-point bending strength under ordinary temperature. CONSTITUTION:A ring like space 4 is provided with a rotary shaft 1, a casing 2 and a flange 3. In the space 4, is attached to the flange 3 via an O-ring 6 a fixed ring 5 made of silicone nitlide ceramics, which shall be alpha in cristal phase, 3.2 in density, 360GPa in Young's meduIus, 2400-3100 in Vickers hardness and 60kg/mm in three point bending strength under ordinary temperature. In this way, wear resistance and heat resistance of a mechanical seal can be improved.
Patent JP-H11111762-A (JP)
Title: Method for mounting semiconductor chips and packed semiconductor chip parts
Inventor: KIRA HIDEHIKO
IPC: H05K3/30
Filed: 1997-10-08
Abstract: PROBLEM TO BE SOLVED: To prevent positional shift between bonding bumps and lands during operation, and to ensure reliability, by tacking a semiconductor chip to a mounting substrate through a tacking member, and thereafter curing a bonding agent supplied between the semiconductor chip and the mounting substrate for fixing. SOLUTION: A tacking member 1 and a thermosetting bonding agent 4 are provided to a mounting substrate 3. A tackiness agent or the like used for an adhesive tape is usable as the tacking member 1. A semiconductor chip part 2 is built up on the mounting substrate 3 with positional adjustment so that individual bonding bumps 5 correspond to individual lands 6, respectively. Under this condition, the semiconductor chip part 2 is tacked to the mounting substrate 3 through the tacking member 1, and therefore positional shift is completely prevented when conveyed. When the bonding agent 4 is cured by using a heating head 40, the semiconductor chip 2 is fixed to the mounting substrate 3 at a given position thereof, thereby obtaining a packed semiconductor chip body 2.
Patent JP-H07126703-A (JP)
Title: Water atomizing nonannealed iron powder for powder metallurgy and its production
Inventor: ISHIKAWA HIROYUKI
IPC: B22F1/00
Filed: 1993-11-04
Abstract: PURPOSE:To produce iron powder excellent in compactibility and compressibility even without annealing after atomizing in atomizing iron powder for powder metallurgy and to provide a method for producing the same. CONSTITUTION:This nonannealed iron powder for powder metallurgy is the one having a compsn. contg. <=0.005% C, <=1.0% O, <=0.4% Mn, <=0.4% Cr, <=0.1% Si, <=0.1% S and <=0.03% P, and in which the relationship between the rattler value (RV: %) and green density (CD: Mg/m<3>) of the green compact compacted under 490MPa compacting pressure is regulated to RV<=4.25XGD-26 and, preferably, the content of iron powder of -325 meshes is regulated to >=30%.
Patent JP-H05117707-A (JP)
Title: Electrical sintering method and device
Inventor: TAKAHARA KAZUKI
IPC: B22F3/10
Filed: 1991-10-23
Abstract: PURPOSE:To produce a sintered body uniform in quality with a simple device by filling a conductive raw powder in a sintering die, pressing the raw powder with upper and lower punches and electrically heating and sintering the compact with the plural electrode bodies forming the sintering die. CONSTITUTION:Electric insulators 6-9 and electrode bodies 10-12 are alternately laminated and vertically clamped by a bolt 14 and a nut 15 to form a sintering die 1. A raw conductive powder 3 is filled in the central space 2 of the die, an upper punch 4 is lowered to vertically press the raw powder with a lower punch 5 by the pressing force A. The electrode bodies 10-12 are connected to capacitors 16-19 through electric switches 20-23, and the capacitors are charged by a power source 28. When the raw powder 3 is pressed by the upper and lower punches 4 and 5, the switches 20-23 are successively or simultaneously closed, hence a heavy current is applied from the capacitors 16-19 to the raw powder which is heated in the shortest time and sintered, and the high-quality sintered body uniformly sintered in the vertical direction is obtained with a single power unit.
Patent JP-S61153700-A (JP)
Inventor: YAMAMOTO SATORU
IPC: G09G3/28
Filed: 1984-12-27
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-S61139440-A (JP)
Title: Curing cloth member
Inventor: ASHIIYU SHIOTEI
IPC: C08J5/06
Filed: 1985-12-07
Abstract: A latent curing fibre is produced by coating a glass fibre with an (optional) thermoplastic (polyamide) adhesion-promoting layer, a (preferably brittle) curing agent layer (eg. styrene/maleic anhydride), and a flexible curable layer of epoxy plus curable polyester. Composites of this fibre with non-reactive glass braids consolidate and cure exceptionally well under a heat-shrink sleeve to provide Class F electrical insulation.
Patent JP-H04266971-A (JP)
Title: Bis cationic azo dye and bibonding imidazolylpyridone
Inventor: MANFUREETO RUSUKE
IPC: C09B44/10
Filed: 1991-10-24
Abstract: PURPOSE: To obtain a novel biscationic dye and a bibonded imidazolylpyridone having uniform dyeability, pH insensitivity, light fastness, wettability fastness, etc., for dyeing or printing paper, synthetic and natural fibers, leather, etc.  
     CONSTITUTION: The biscationic azo dye is represented by formula I [wherein R 1  is H, phenyl, a 1-5C alkyl which may be substituted; R 2  is H, a 1-5C alkyl; R 3 , R 4  are each H, methyl; D is an aromatic diazo component not containing sulfonic group, 1,4-phenylene which may be substituted with a 1-4C alkyl or a 1-4C alkoxy, a group of formula II (wherein Z is a bridge member); Y is H, a 1-18C alkyl, a 2-6C alkylene, xylidene, phenylene; An -  is one equivalent of an anion; (m) and (n) are each 1, 2] and the bibonded imidazolylpyridone is represented by formula III (wherein L is a 2-6C alkylene, xylidene, phenylene). The azo dye is prepared by diazotizing an aromatic amine and coupling the product with an imidazolylpyridone. 
     COPYRIGHT: (C)1992,JPO
Patent JP-S63124007-A (JP)
Inventor: UIRIAMU PATORITSUKU TORANBURU
IPC: G02B1/10
Filed: 1987-11-02
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。