baber/WOPTO huggingface dataset:
Patent JP-S61263995-A (JP)
Title: Production of cytosine nucleoside
Inventor: HATANAKA CHITOSHI
IPC: A61K31/7064
Filed: 1985-05-16
Abstract: PURPOSE:To obtain the titled compound useful as a medicine or its synthetic intermediate, in high yield, by reacting uridine with a hexaalkyldisilazane and an acid amide in a closed vessel, thereby carrying out the amination of the 4-site of uridine under low pressure at a stroke. CONSTITUTION:The objective compound can be produced by reacting (A) uridine which may be protected at the OH group with (B) a hexaalkyldisilazane [preferably the compound of formula (R<1> is alkyl), especially hexamethyldisilazane and (C) an acid amide {e.g. the compound of formula R<2>CONHR<3> [R<2> and R<3> are H, (substituted) alkyl, aralkyl, aryl or alkenyl], e.g. acetamide, etc.} in a closed vessel preferably at 90-170 deg.C and 1-25kg/cm<2> pressure, and if necessary, removing the protecting group. The amounts of the components B and C are 2-10mol and 0.1-3mol per 1mol of the component A, respectively.
Patent JP-S63270402-A (JP)
Title: Method for compacting granular powder
Inventor: KUROKI TAKANORI
IPC: B22F7/04
Filed: 1987-04-28
Abstract: PURPOSE:To enable compacting of granular powder having uniform quality and accurate shape by packing the granular powder in space of double cylindrical case, moving a pressurized position while autorotating the case and deforming the case to the prescribed shape. CONSTITUTION:In the space between inner wall 1a and outer wall 1b of metal- made cylindrical case 1 having double wall construction, the granular powder 2 composing of metal, ceramic, carbon or their mixed material, is packed and the upper opening part is closed by annular end plate 3. While autorotating the cylindrical case 1 under horizontal laying condition, etc., as centering the longitudinal directional axis of the case 1, the pressurizing jig 4 is locally pressed, and while shifting the pressurized part, the prescribed plastic deformation is executed to the case 1. The position applying the pressurizing jig 4 is any side among the outer wall 1b side, the inner wall 1a side or from both sides. By this method, the granular body 2 holds generally uniform quantity at any position and compacting density of the obtd. compact becomes almost constant.
Patent JP-H06317767-A (JP)
Title: Contact lens and its production
Inventor: SAWANO TADASHI
IPC: G02C7/04
Filed: 1993-05-06
Abstract: PURPOSE:To improve the exchangeability of the tears existing between the contact lens and the cornea, to maintain the stable corrected sight and to adequately adjust the ratio of an area covering the cornea to enhance the feel of use by determining the outside diameter of the contact lens by the radius of curvature at the vertex of the inside surface. CONSTITUTION:This contact lens 1 consists of a convex outside surface 2, the concave inside surface 3 and a connecting surface 4 for connecting the outside surface 2 and the inside surface 3. The inside surface 3 is a part in contact with the human cornea and, therefore, corresponds to the shape of the cornea. The outside diameter of the contact lens 1 is determined from the average radius of curvature of the cornea in such a manner that the contact lens 1 adequately adjustable in the area covering the cornea is provided simply by measuring the average radius of curvature of the cornea of a wearing person by noticing the fact that the eyeball having the large cornea diameter has a tendency to the large average radius of curvature of the cornea as well. The average radius of curvature of the cornea is assumed to coincide with the radius BC of curvature at the vertex of the contact lens 1.
Patent JP-S59579-A (JP)
Title: Gate valve device for concrete pump
Inventor: HASEGAWA NOBUYUKI
IPC: F04B15/02
Filed: 1983-06-15
Abstract: PURPOSE:To reduce the weight and the manufacturing cost of a gate valve device for a concrete pump, by employing such an arrangement that a pair of guide plates having the same form and formed respectively with a actuator rod supporting part and a flange for covering holes in a housing are disposed in the housing in a freely detachable manner. CONSTITUTION:Holes 2a, 2b are formed in a pair of symmetrical housings 1 in which a gate valve means is placed. A pair of guide plates 6 consist respectively of a main body 6a, an actuator rod supporting part 6c for supporting an actuator rod 3 in a freely reciprocable manner, and a flange part 6c for covering the inside of the hole 2a or 2b formed in the housing 1. Therefore, wear of the housings 1 due to their contact with the actuator rods 3 is prevented by the actuator rod supporting parts 6b while wear of the housings 1 due to their contact with a gate valve 4 is prevented by the flange parts 6c.
Patent JP-H11287156-A (JP)
Title: Fuel control valve in carburetor
Inventor: KUROKI NOBUYUKI
IPC: F02M3/12
Filed: 1998-03-31
Abstract: PROBLEM TO BE SOLVED: To prevent variation in a fuel flow rate due to installation of an action restricting lid to the head part of a fuel control valve or vibration of an engine. SOLUTION: A screw hole 25a extending inward in order and a fuel passage hole 23a with a diameter smaller than that of the screw hole 25a are arranged coaxially in a carburetor main body 20, while a screw shank part 4 screwed into the screw hole 25a from a head part 7 to the tip in order and a tip needle part 3 fitted in the fuel passage hole 23a are arranged in a fuel control valve 2. By means of the tip needle part 3, a passage area of the fuel passage hole 23a is regulated. A cylindrical part 61 opening to the tip part is arranged in the tip needle part 3, and a slit 62 is arranged on the circumferential wall of the cylindrical part 61.
Patent JP-H10303696-A (JP)
Title: Polar type saw filter
Inventor: EBARA NAGANORI
IPC: H03H9/46
Filed: 1997-04-23
Abstract: PROBLEM TO BE SOLVED: To improve the frequency characteristics by connecting a resonator type SAW filter, using a serial arm consisting of a phase shifting circuit of a two-terminal couple circuit and a surface acoustic resonator and a parallel arm consisting of a phase shifting circuit and a surface acoustic wave resonator, and the impedance of the two-terminal couple circuit in parallel. SOLUTION: The impedance (Za)200 of the two-terminal couple circuit is made smaller than the impedance of serial arm SAW resonators 110 and 111 and a parallel arm SAW resonator 120. Tip open impedance (Z0 (1)) is invariable and only tip shorted impedance (Zs (1)) is variable, so the frequency can be varied to be Z0 (1): Zs (1). Further, a phase shifting circuit 101 is added to a 1st serial arm SAW resonator 110 and the bandwidth where the tip open impedance and tip short-circuited impedance become equal to each other become wider.
Patent JP-H06294374-A (JP)
Title: Power generator
Inventor: OKUBO SHUICHI
IPC: F03G7/00
Filed: 1993-04-09
Abstract: PURPOSE:To develop a micro power generator for a micromachine anew. CONSTITUTION:A power generator is provided with conductive liquid between parallel electrodes 2, 3, a closed cell 1 in which liquid crystal L is representatively filled, rotors 5 arranged in the vortex centers in the range where convection vortex is generated in the case of applying voltage, output shafts 6 extended outside the cell and a voltage applying means 4. In the cell, convection is generated on the peripheral part when voltage is applied between the electrodes as indicated by arrows. The convection energy is taken out by the rotors and taken as a motor. It is preferably to use nematic liquid crystal and smectic liquid crystal taking SmC* phase as a typical example.
Patent JP-H05137100-A (JP)
Title: Information recording and/or reproducing device
Inventor: OGAWA KAZUYUKI
IPC: H04N5/7826
Filed: 1992-03-31
Abstract: PURPOSE:To easily retrieve a recording content based on the data of a recording date, etc., by recording such data on an area between an audio signal and a video signal divided and recorded sequentially on helical tracks. CONSTITUTION:A system control circuit 4 outputs time information and the information DS of the recording date, etc., reacting according to the operation of an operator 5 to a market processing circuit 8. The circuit 8 forms a marker signal ma by modulating the information DS, and after that, outputs the signal ma to a magnetic head 10 at a time when a prescribed time elapses when the recording of a digital audio signal PCM is completed, and records it on a magnetic tape 2. Thence, the video signal VD is recorded after the lapse of the prescribed time. Thereby, it is possible to extract the signal ma from a reproducing signal and to retrieve a desired signal VD by performing fast feed in reproduction, and to display the signal by superimposing as necessary.
Patent JP-H10300304-A (JP)
Title: Thermoelectric module type electric refrigerator
Inventor: KITAGAWA HIROAKI
IPC: F25B21/02
Filed: 1997-04-23
Abstract: PROBLEM TO BE SOLVED: To further improve the thermal efficiency by reducing the condensate to be generated in a thermoelectric heat exchange block and a heat absorption piping system, and reducing the thermal effect of the thermoelectric heat exchange block and a heat radiation piping system on a chamber. SOLUTION: A thermoelectric heat exchange block 11 is provided in the external chamber 9 of a refrigerator body 1 and in an internal chamber 17 partitioned by a heat insulation wall 8, pipes at an inlet part 27a and an outlet part 27b of a first circulation passage at the first heat exchange part 26a of the thermoelectric heat exchange block 11 are pulled to the external chamber 9 of the refrigerator body 1 through the heat insulation wall 8 from a part opposite to the heat insulation wall 8 of the thermoelectric heat exchange block 11, and the first heat exchange part 26a of the thermoelectric heat exchange block 11 is covered around by the heat insulation wall 8.
Patent JP-S62262255-A (JP)
Title: Rotary head type video signal reproducing device
Inventor: ANDO HISASUMI
IPC: H02P29/00
Filed: 1986-05-09
Abstract: PURPOSE:To prevent adverse effect of noise due to product at the time of phase comparison is executed at the horizontal period by holding a phase error signal before a dropout period at the dropout period. CONSTITUTION:A dropout detection signal is fed to a switching amplifier 49 from an input terminal 48. The dropout detection signal is a signal whose level is at 'H' when the envelope level of a reproducing signal is a prescribed level or below. A retriggerable monostable multivibrator 47 is triggered by the trailing edge of output signal of the switching amplifier 49, a pulse signal is generated and the monostable multivibrator 45 is reset when the pulse signal is at 'H'. Since the monostable multivibrator 45 is reset, while an output signal of the retriggerable monostable multivibrator 47 is at 'H', no gate pulse is generated, then the output signal of a sample and holding circuit 43 is a signal where an error voltage just before the muting is started.
Patent JP-H01276748-A (JP)
Title: Salient electrode of semiconductor element
Inventor: SHIRAHATA HISASHI
IPC: H01L21/60
Filed: 1988-04-28
Abstract: PURPOSE:To improve both bonding strength and reliability by providing a salient electrode whose upper surface is flat on a metal film around an opening of a protective film of a metal pad. CONSTITUTION:A metal pad 2 is provided on an SiO2 film 1a of an Si substrate and is covered with a protective film 3 and then opened. An Au film 5 is bonded to both the opening 4 and the protective film 3a around the opening 4. Except for a resultant recess 5a, a salient electrode 16 is formed on the flat periphery part of the Au film 5 over the protective film 3a. According to the constitution, in which the salient electrode is arranged on the flat part of the Au film 5, the upper surface of the electrode is also made flat. This allows a large bonding strength and reliability to be obtained when the salient electrode 16 is bonded to the corresponding metal surface.
Patent JP-S5873875-A (JP)
Inventor: HAABAATO EI NOORUTON
IPC: G01R1/067
Filed: 1982-06-22
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-H08294341-A (JP)
Title: Fixture for scallop cultivation
Inventor: KUDO KIYONARI
IPC: A01K61/00
Filed: 1995-04-28
Abstract: PURPOSE: To provide fixtures for scallop cultivation having a confirmation mark for identifying a kind, etc., of a ladder-shaped formed article on one of the lateral members of the formed article, enabling the sure fixing of the fixture and having an improved workability. CONSTITUTION: A ladder-shaped formed article 1 is made of many fixtures 2 and upper and lower lateral members 3, 4, and they are integrally molded with a resin. In the formed article 1, fixtures 2 are connected to the upper and lower lateral members 3, 4 at upper and lower ends and many fixtures are placed in parallel. A confirmation mark 5 for identifying a kind and upside or downside of the formed article 1 is formed on at least one of the lateral members 3, 4. Further, the confirmation mark 5 is preferably constructed by a protrusion formed on at least one of the lateral members 3, 4.
Patent JP-H0320263-A (JP)
Title: Tertiary alkylated piperazin derivative
Inventor: MAGITSUDO ABUDERUUMEGITSUDO AB
IPC: C07D295/10
Filed: 1990-04-21
Abstract: Compounds of the formula <CHEM> in which R<1> is alkyl; R<2> and R<3> are alkyl or taken together they are polymethylene, R<2> and R<3> complete a 5-norbornen-2-yl moiety; X is -CO2-, -OCO-, -OCO2-, -N(R<7>)CO-, -NHNHCO-, -ON(R<7>)CO-, -CON(R<7>)-, -N(R<7>)CO2-, -OCON(R<7>)- or -N(R<7>)CON(R<8>)-, wherein R<7> and R<8> are, independently, hydrogen, alkyl, phenyl, benzyl, substituted phenyl or substituted benzyl in which the substituents are halo, alkyl, alkoxy, cyano, nitro or perhalomethyl; R<4> is hydrogen or alkyl; R<5> is hydrogen, alkyl, hydroxyalkyl, phenyl, benzyl, substituted phenyl or substituted benzyl in which the substituents are hydroxy, halo, alkyl, alkoxy, trifluoromethyl, nitro, cyano, carbalkoxy, carboxamido, amino, alkylamino, or dialkylamino; R<6> is phenyl, benzyl, 2-, 3-, or 4-pyridinyl, 2-pyrimidinyl or 2-pyrazinyl, any of which may be substituted by one or more hydroxy, halo, alkyl, alkoxy, trifluoromethyl, nitro, cyano, carbalkoxy, carboxamido, amino, alkylamino or dialkylamino; n is one of the integers 1, 2, 3, 4 or 5; or a pharmaceutically acceptable salt thereof, with the proviso that when X is -CON(R<7>)- and R<7> is alkyl, R<6> is other than 2-pyrimidinyl, are antidepressant and/or anxiolytic agents.
Patent JP-S63273582-A (JP)
Title: Laser beam machine
Inventor: OGURA YASUHIRO
IPC: B23K26/00
Filed: 1987-05-01
Abstract: PURPOSE:To perform the laser beam machining with the high reliability without interrupting the laser beam machining by the trouble, etc., of a laser beam oscillation part by providing two laser beam oscillation parts to supply a laser beam and a changeover means of a supply source of the laser beam to a laser beam machining part. CONSTITUTION:The laser beam 16 emitted from the laser beam oscillation part 11 enters a transmission optical path 15 and is led to the laser beam machining part 10 by a reflection mirror 14 and a changeover mirror 13a. Moreover, the laser beam 16 emitted from the laser beam oscillation part 12 enters the transmission optical path 15 and is led to the laser beam machining part 10 by the reflection mirror 14 and a changeover mirror 13b. Here, the laser beam 16 from the laser beam oscillation parts 11 and 12 can be optionally led to the laser beam machining part 10 by taking the changeover mirrors 13a and 13b in and out of the transmission optical path 15. Accordingly, in case one laser beam oscillation part 11 breaks down, the supply source of the laser beam 16 is changed over to the other laser beam oscillation part 12, by which the laser beam 16 can be supplied to the laser beam machining part.
Patent JP-H05118004-A (JP)
Title: Crossing structure of railroad
Inventor: MATSUMOTO TSUNEKAZU
IPC: E01C9/04
Filed: 1991-04-01
Abstract: PURPOSE:To obtain a simple structure of crossing to be removed or recovered in a short time by a method in which a support beam is set between rails and fixing blocks and a cross plate is detachably attached to the upside of support beams. CONSTITUTION:A pair of support beams are set with a spacing in the direction of rails 3 between the left and right-handed rails 3 or between the rails 3 and fixing blocks 14. The support beams 2 are inclined slantly to the placing direction of rails, one of them is contacted with the recessions 3a of the rails 3, and the beams 2 are turned to fit the other one in the recessions 3a of facing rails 3 or the fitting recessions 15 of the fixing blocks 14. Fitting pieces 5a of fitting metals 5 fixed with cross plates 1 are fitted in the grooves of the beams 2 and set on the beams 2. They are clamped by the beams 2, the fitting pieces 5a, bolts 9, and nuts. A simple structure of crossing can thus be obtained by small member of workers without use of specific tools.
Patent JP-S5730980-A (JP)
Title: Sound generating circuit for clock
Inventor: MAKUTA SHIYUNICHI
IPC: G10L21/00
Filed: 1980-08-01
Abstract: PURPOSE:To generate a sound with a frequency changing repetitively with a displaced sound generation period to provide an imitation sound like a bird and an insect, by giving a reference signal for determining a displaced sound generation period to a frequency dividing ratio selecting counter and driving a speaker according to the output of a program frequency divider. CONSTITUTION:Provided are a generator 10 for a sound generation reference signal with a constant frequency, a program frequency divider 12 that frequency-divides and outputs a sound generation signal with a different frequency dividing ratio according to a prescribed program and a frequency dividing ratio selecting counter 14 that supplies the output of a counter performing repetitive counting with a sound generation period to the divider 12 as a frequency dividing ratio selecting signal and has a sound generation period that displaces in itself with a prescribed repetitive period. Further, a reference signal for determining a displaced sound generation period is supplied to the counter 14 by a reference signal generator 20 for a sound generation period comprising a frequency divider, and according to the output of the divider 12 a speaker 26 is driven, thus allowing a sound generation with a frequency changing repetitively with a displaced sound generation period. This circuit is made to actuate with an alarm signal generated by turning-on of an alarm contact point 30 of a clock 28 through a controlling circuit 32, permitting generation of an imitation sound such as a bird and a insect.
Patent JP-H11304910-A (JP)
Title: Obstacle detecting equipment for vehicle and arrangement method of transducers for obstacle detection
Inventor: OKA TAKUJI
IPC: G01S7/521
Filed: 1998-04-16
Abstract: PROBLEM TO BE SOLVED: To facilitate sensuous recognition of positional relation of an obstacle and a vehicle, by adjacently arranging two transducers(Tr) with a specified open angle in such a manner that the borderline of a non-overlap detection region and an overlap detection region is positioned on the extension line of the side and the front end (rear end) of a vehicle. SOLUTION: Detection units Tr 1, 2 set at four corners of an automobile 11 are adjacently arranged in units, so that fan-shaped transmitting and receiving areas 12 constituted of areas 1-5 are formed in corner peripheries. An arrangement angle (open angle) of the two Tr's 1, 2 is previously determined by a covering angle (about 120 deg.) of transmitting ultrasonic wave and the setting manner of an overlap region of transmitting and receiving areas. For example, the Tr's 1, 2 are arranged at corners of the automobile in such a manner that the borderline of an area 1 (non-overlap region) and an area 2 (overlap region) coincides with an extension line of the side of the automobile 11, and the border line of an area 4 (overlap region) and an area 5 (non-overlap region) coincides with the extension line along the front end of the automobile 11.
Patent JP-S5630588-A (JP)
Title: Sealing apparatus of rotary accumulation type heat exchanger
Inventor: TAKEUCHI TOORU
IPC: F28D19/04
Filed: 1979-08-23
Abstract: PURPOSE: To reduce the change of pressing force even if a sealing member is inclined, by arranging a groove in a pressing surface of the sealing member, whose pressing surface will be abutted on a matrix, and introducing a high pressure acting fluid to said groove.  
     CONSTITUTION: The groove 10 is arranged along a longitudinal center line of the pressing surface of the sealing member 7, whose pressing surface will be abutted on the matrix 1, in the groove 10 are formed a plurality of communication ports 11 for introducing a low temperature and high pressure air, and if necessary, a throttle 12 is arranged in each communication port 11. Thus though when the sealing member 7 is inclined with the gap between it and the matrix 1 diverged to a high pressure side 2 from a low pressure side 3, the pressure distribution over the width of the sealing will not be abruptly changed, when the gap is diverged to the low pressure side 3 from the high pressure side 2, and the pressure in the groove 10 is going to be low, a high pressure air is fed through the communication ports 11 to keep the pressure in the groove 10 high, so that when the sealing member 7 is slightly inclined, the pressure distribution over the width of the sealing will not be greatly changed, the increased driving force or wear will be prevented when the pressing force is increased, and the leakage will also be prevented when the pressing force is decreased. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H02284102-A (JP)
Title: Linear light source and light trap used for this light source
Inventor: OE MAKOTO
IPC: G02B6/00
Filed: 1989-04-26
Abstract: PURPOSE:To obtain the linear light source which is uniform and bright and can be used without daring to use a mixing member and is usable as a cold light source as well by combining a unique multiprism sheet with a bar-shaped light transmission body. CONSTITUTION:A light trap 1 is constituted of the bar-shaped light transmission body 10 and the multiprism sheet 11 provided atop the body. All the surfaces of the light transmission body 10 exclusive of its light incident end face 10A and light exit face 10B are provided thereon with a light reflecting layer 12. The multiprism sheet 11 having a prism group orthogonal with the progressing axis of light can concentrically emit the incident light from a diagonal direction to a prescribed direction (for example, a normal direction) and, therefore, the uniform and bright illumination of this surface is possible. The use of the linear light source as the cold light source as well is enabled in this way by combining the linear light source which is uniform and bright and is light in weight and compact in the constitution with an optical fiber.
Patent JP-H02284914-A (JP)
Title: Production of polyarylate
Inventor: MASAMOTO JUNZO
IPC: C08G63/19
Filed: 1989-04-26
Abstract: PURPOSE:To efficiently obtain in economically advantageous manner the title polymer excellent in resistance to heat and impact and mechanical strength by reaction, in the presence of a specific solvent through a specified process, between a diester derivative of aromatic dihydroxyl compound and an aromatic dicarboxylic acid. CONSTITUTION:A reaction is carried out between (A) a diester derivative of aromatic dihydroxyl compound (pref. bisphenol A diacetate) and (B) an aromatic dicarboxylic acid (pref. terephthalic acid), at a reaction temperature 260-350 deg.C in the presence of an inert solvent with its boiling point lower than that of said reaction temperature (pref. diphenyl ether), through the following process: said solvent is drawn out in the form of vapor from the reaction system at a rate of 1/30 to 3 weight times based on the theoretical amount of the final polyarylate to be produced, along with making up for its deficiency; thus obtaining the objective polymer 0.5-1dl/g in reduced viscosity. It is preferable that the above-mentioned reaction be made in an inert gas atmosphere such as nitrogen.