baber/WOPTO huggingface dataset:
Patent JP-H02226232-A (JP)
Title: Directional coupler type optical switch
Inventor: KOMATSU YOSHIRO
IPC: G02F1/313
Filed: 1989-02-28
Abstract: PURPOSE:To reduce crosstalk by applying electric fields to two three-dimensional semiconductor waveguides, provided on a semiconductor substrate, independently and forming the semiconductor directional coupler type optical switch which does not depend upon the polarization state of incident light. CONSTITUTION:On the semiconductor substrate 101 which has a (111) surface azimuth, a 1st semiconductor clad layer n-AlGaAs 102, a semiconductor laser i-GaAs 103, and a 2nd semiconductor clad layer i-AlGaAs 104 are laminated to form the two three-dimensional waveguides closely to each other. When the length required to transfer the power of waveguide light from one three- dimensional optical waveguide to the other optical waveguide is set to LTE for a TE mode and LTM for a TM mode, the element length of a directional coupler is so set that LTE<=L<=LTM. Consequently, even if the two modes differ in complete coupling length slightly, the crosstalk can be made small.
Patent JP-H08250494-A (JP)
Title: Wiring material and formation of metallic wiring layer
Inventor: TAKAYAMA SHINJI
IPC: H01L23/532
Filed: 1995-03-08
Abstract: PURPOSE: To provide a wiring material which has an extremely low electric resistance and is free from such defects as hillocks, pinholes, etc., even when the material is heated to a high temperature and with which a solid oxide film can be formed by using the anodic oxidation method. CONSTITUTION: An alloy having a composition expressed by Alx (My N1-y )1-x , where M and N respectively represent at least one element selected from the group of rare-earth elements and at least one element selected from among Nb, Zr, and Ta and (x) and (y) respectively represent 98-99.5at.% and 0.1-0.9at.%, is used as a wiring material so that, when the alloy is heat-treated, an intermetallic compound of Al and the element represented by N or M can deposit in the matrix. The purpose can be accomplished even when an alloy to which Nb is added at a rate of 0.5-2.0at.% against Al is used. It is preferable to control the heat-treating temperature within the range of 250-450 deg.C.
Patent JP-S57162952-A (JP)
Title: Plate brush for miniature motor
Inventor: MABUCHI RIYUUICHI
IPC: H01R39/24
Filed: 1981-04-01
Abstract: PURPOSE: To inexpensively reduce the variation in the rotating speed of a motor simply by forming many dense ultrafine unevennesses on the sliding surface of the commutator of a brush when using a plate-shaped brush.  
     CONSTITUTION: When a plate brush 6 made of conductive metal plate is slided with a commutator 1 in use, many dense ultrafine unevennesses are formed on the sliding surface of the brush 6. The grooves 10 of the unevennesses are longitudinally, laterally or obliquely formed. In this manner, the variation in the rotating speed of the motor can be reduced. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H07258373-A (JP)
Title: Production of low-density low-hardness flexible polyurethane foam
Inventor: HORIE TATSUO
IPC: C08G18/48
Filed: 1994-03-18
Abstract: PURPOSE: To produce a polyurethane foam low in density and hardness containing no chlorofluorocarbon.  
     CONSTITUTION: In a method for producing a flexible polyurethane foam by reacting a polyol and a polyfunctional isocyanate in the presence of water, a catalyst and a foam stabilizer, a polyol mixture containing 1-25 wt.% at least one polyether polyol with an average functionality of 2 or more, a primary hydroxyl group content of 70 wt.% or more, an ethylene oxide content of 65 wt.% or more and an equivalent wt. of 500-2,000 as a polyol is used. If required, a chemical reactant and/or an auxiliary blowing agent are together used. 
     COPYRIGHT: (C)1995,JPO
Patent JP-H06254868-A (JP)
Title: Manufacture of composite precisely molded product
Inventor: TOMONO HARUO
IPC: B29K105/20
Filed: 1993-03-10
Abstract: PURPOSE:To accurately manufacture a low-cost composite accurately molded product in which a base material is integrated with a resin layer. CONSTITUTION:A method for manufacturing a precisely molded product comprises the steps of first filling reaction curable liquid resin having substantially the same volume as that of a cavity 12 in the cavity 12 formed in a mold 10 for molding a resin layer 14 and formed in shape inverted to a complete shape of the layer 14 to form a first resin layer, second dropping a small amount of the resin on a cured surface of the first layer at an open side, placing a base material 16 on the resin, curing it and further forming a second resin layer, and finally releasing the product integrated with the material 16 and the first and second layers 14 from the mold.
Patent JP-S63213932-A (JP)
Title: Manufacture of complementary dielectric isolation substrate
Inventor: SHIBATA SHIGERU
IPC: H01L21/306
Filed: 1987-03-03
Abstract: PURPOSE:To form P- and N-type silicon islands having substantially identical thicknesses with high precision, by providing a silicon island of a second conductivity type on an exposed surface of a silicon substrate of a first conductivity type and selectively polishing the structure. CONSTITUTION:An N-type silicon substrate 1 of plane orientation 100 is first provided with an N-type silicon island 2 and a P-type polycrystalline silicon 4 overlaid on the island 2 with an oxide film 3 interposed therebetween. Further, a P-type silicon island 6 and a transition region 5 are formed on the exposed surface of the substrate. The P-type silicon island 6 is selectively polished until it is as thick as the N-type silicon island 2. After the top face of the P-type silicon island 6 is covered with a silicon oxide film 3A, the transition region 5 and the P-type polycrystalline silicon layer 4 are removed with an alkali solution. The N-type silicon island 2 and the P-type silicon island 6 are covered with a silicon oxide film 3B and a polycrystalline silicon layer 7 is deposited thereon. The silicon layer 7 is then polished to the level of A-A', and from this reference, the silicon layer is polished down to the level of B-B' by means of the selective polishing process. In this manner, the silicon islands of the first and second conductivity types with substantially identical thicknesses can be formed with high precision.
Patent JP-H02228335-A (JP)
Title: Production of porous flooring
Inventor: TAJIMA YOSUKE
IPC: E04F15/00
Filed: 1989-03-01
Abstract: PURPOSE:To obtain a porous flooring hardly slippery for a long time by making porous or fine powdery granules adsorb water in a high-temp. and high-humidity atmosphere, mixing it with a thermosetting resin, molding the mixture, heat- curing it and eliminating the adsorbed water. CONSTITUTION:Porous powdery granules (e.g. zeolite) or fine powdery granules (e.g. attapulgite) are placed in a high-temp. and high-humidity atmosphere to adsorb water, and mixed with a thermosetting resin (e.g. an epoxy resin), and the mixture is molded. The molded item is heat-cured and, during or after the heat-curing, the water adsorbed in the powdery granules is eliminated to form fine pores to thereby give a porous flooring. When this flooring is wetted with water, the water moves into the pores and the water film on the surface decreases. This flooring is therefore hardly slippery and is suitably used for a flooring of a bath room, etc.
Patent JP-H05131964-A (JP)
Title: Body frame structure of motorcycle
Inventor: TERAI KAZUO
IPC: B62K11/02
Filed: 1991-02-21
Abstract: PURPOSE:To provide the body frame structure of a motorcycle wherein a manufacturing cost is reduced, ensurance of strength is facilitated, and the generation of vibration can be suppressed. CONSTITUTION:A car body frame is formed such that a cylindrical part 50a and a pair of plate-form parts 50b protruded to the same side along the axial direction of the cylindrical part 50a are integrally formed by means of an extrusion material 50. The extrusion material 50 is formed such that the plate-form part 50b is cut and formed in the shapes of, for example, a main frame and a rear arm, further a pair of the plate-form parts 50b are bent in a state to be positioned facing each other for joining and end parts 50c are arranged to butt against each other for welding and joining.
Patent JP-H02271260-A (JP)
Title: Closed loop solid accelerometer
Inventor: UORUTAA JIEI WAIGANDO
IPC: G01P15/08
Filed: 1990-02-28
Abstract: PURPOSE: To provide a closed loop type volume accelerometer by suppressing a spring constant of a holding hinge within a specified limit value corresponding to the maximum deviation occurring at a detection mass part. CONSTITUTION: An upper part plate 20, a bottom part plate 30 and a supporting member 105 are mutually combined with a rigid structure. A detection plate is combined to a member 105 with at least two flexible parts 162 wherein a specified hinge length which is shorter than its length is expanded and a specified hinge thickness is provided. Thus, a connection channel is formed between an upper chamber 32 and a lower chamber 34. At least one of the chambers 32 and 34 contains an operation stop part, and an electronic means is provided which applies a 3-plate type capacitor plate with a voltage for returning the detection plate to a reference surface. A to-be-measured maximum acceleration is related to an acceleration with which the detection plate is made to contact to the operation stop part under the following condition: acceleration/4 maximum acceleration<4 acceleration.  Thus, the maximum acceleration to be measured is limited by a total spring constant.
Patent JP-S54141662-A (JP)
Title: Assiging method of inspection area
Inventor: NAKASHIMA MASAHITO
IPC: G01R31/26
Filed: 1978-04-27
Abstract: PURPOSE: To enable an inspection area to be assigned readily, inexpensively and without any error irrespective of the shapes of the inspection area by limiting the area of the sample to be inspected with a shield material.  
     CONSTITUTION: A wiring pattern 18a is scanned by moving a light beam 19 in the arrow A direction. The reflected light from the sample 18 and wiring pattern 18a is detected by a photodetector 20. Here, a shield plate is disposed above the sample 18 and the portion of 21a is made black so that there is no reflected light from the shield plate. Hence, when the light beam 19 comes to the portion of 21a, there is no reflecting light at all in the detector 20 and this tells that it is the portion other than the inspection area. The provision of the shield plate having a window opposing to the inspection area of the sample to be inspected on the sample and mere scanning of the light beam from its above in this way enable the inspection area to be automatically assigned with ease and low cost. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S54141966-A (JP)
Title: Speed reference automatic changeover
Inventor: OZAKI YOSHIO
IPC: G05D13/62
Filed: 1978-04-27
Abstract: PURPOSE: To continue a run of the motor without a temporary stop when the computer, which gives the speed reference to the motor running at a multiplicity of transition speeds, is troubled by changing the computer to the motor speed reference setting unit.  
     CONSTITUTION: Output of both setting units of the line speed 11 and the draw 31 are fed to the computer 41, a specified value given by the arithmetic unit 43 is provided as a speed reference through the D-A converter 51 and speed reference chageover unit 101. When the power supply is troubled, for example, normally open contacts 81a  and 81a' are closed by an output of the trouble detector 81. The motor is driven such that the speed reference temporarily retained by the computer and the output of the motor speed reference setting unit 111 coincides with each other. After coinsidence, the contact of speed reference changeover unit 101 is switched from 101b to 101a, the motor is run by the output of speed refereuce setting unit 111. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H09243468-A (JP)
Title: Temperature sensor
Inventor: KATO TOMIO
IPC: G01K7/22
Filed: 1996-03-07
Abstract: PROBLEM TO BE SOLVED: To provide a temperature sensor in which the tip part of a thermistor element part can be installed directly in a liquid such as water, a solution or the like or in a corrosive-gas atmosphere and whose reliability is high even when a stress is applied to a lead wire or the like. SOLUTION: A thermistor element 3 from which two lead wires 2 are drawn out to the same direction is sealed with a glass, and the lead wires 2 are drawn out to the outside through a glass hollow part constituted by extending a part of the glass. The end part of the hollow part which is formed of the glass and through which the lead wires 2 are passed is sealed with glass so that it can be isolated completely from the outside. The glass hollow part which is isolated completely from the outside is filled with an inert gas such as N2 , Ar or the like or with the air under a pressure which is higher than atmospheric pressure. When a temperature sensor which is constituted in this manner uses a case, its reliability is enhanced further, it becomes low-cost, and it can be used easily.
Patent JP-H08243664-A (JP)
Title: Chute device for press machine
Inventor: SUZUKI YOSHINORI
IPC: B21D45/00
Filed: 1995-03-09
Abstract: PURPOSE: To reduce the noise as far as possible, to effect the setting of a chute in a small space, to automatically stop the chute matching to the working of a press machine and to work the chute by using a driving source except electricity. CONSTITUTION: A cam member 56 is reciprocatively turned together with the output shaft 24 of a rotary actuator by changing over the air synchronizing with the reciprocating movement of the press machine, and a slider 16 is vibrated to the right and left direction by the action of one pair of followers 110a, 110b and a compressed coil spring 104. The chute is fitted to the slider 16 in the posture paralleled to the vibration direction of the slider 16 and also, the inclining angle of the chute can be adjusted by changing the posture around the axis O of the own rotary actuator arranged with the slider 16, etc.
Patent JP-H07232364-A (JP)
Title: Injection molder equipped with display equipment
Inventor: NISHIMURA KOICHI
IPC: B29C45/76
Filed: 1994-02-24
Abstract: PURPOSE:To provide an injection molder, which takes up no large space and is operationally convenient. CONSTITUTION:In an injection molder, in which a mold clamping unit 2 ad an injection unit 3 are arranged horizontally, a display unit 6 on an injection side gate 31, by which the injection unit 3 is surrounded, so as to constitute the display unit 6 to be movable with the opening and closing of the injection side gate 31 or to constitute so as to provide the display unit 6 on a mold clamping side gate 21, by which the mold clamping unit 2 is surrounded.
Patent JP-S55141481-A (JP)
Title: Novel aspartic acid anhydride derivative
Inventor: TAKAHASHI SATOJI
IPC: C07D307/66
Filed: 1979-04-23
Abstract: NEW MATERIAL:N-(1-Methyl-2-acetylvinyl)-aspartic acid anhydride of the formula.  
     USE: A raw material or intermediate for the synthesis of various peptides and asparagine, an intermediate for sweetening agents, lower alkyl esters of α-L-aspartyl-L- phenylalanine.  
     PROCESS: Aspartic acid is reacted with acetylacetone at -30W50°C, preferably -25W20°C, for 1W25hr to form N-(1-methyl-2-acetylvinyl)-aspartic acid, which is then treated with a dehydrating agent in an organic solvent to give the objective substance. DL-Aspartic acid is used to prepare a racemic modification, and L- or D-aspartic acid is used to give optically active isomers in the similar procedure. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H09247254-A (JP)
Title: Telephone set
Inventor: ASAHI TORU
IPC: H04M1/04
Filed: 1996-03-07
Abstract: PROBLEM TO BE SOLVED: To prevent a handset or a housing from breaking by preventing the handset from falling when the telephone set is carried. SOLUTION: The upper panel 3 of the housing 2 of the telephone set 1 has a recessed part 7 in which the transmission part 10 of the handset 8 is fitted. Windows 20 are bored in both the side walls of the recessed part 7 and leaf springs 22 which have an elastic restoring force making a hold pad 20 intrude into the recessed part 7 from the window 20 are arranged. Then an operating pin 26 is provided which engages the connection part 22b of the leaf spring 22 and energized to project from the bottom part of the housing 2 with the elastic restoring force of the leaf spring 22.
Patent JP-H05252133-A (JP)
Title: Intelligent time division multiplexer
Inventor: OKAZAKI KAZUMASA
IPC: H04J3/22
Filed: 1992-03-09
Abstract: PURPOSE:To provide an intelligent time division multiplexer capable of automatically performing network design and the automatic design of equipment by inputting network information input as a time division multiplexer used in digital communication. CONSTITUTION:The time division multiplexer consisting of a line adaptive package 110 which takes interface with a digital line, a terminal adaptive package 120 which takes interface with a terminal, a shelf 200 on which the line and terminal adaptive packages 110, 120 are mounted, and a housing 300 on which the shelf 200 is mounted is made up by providing a network information input mechanism part 10 which inputs fundamental information with respect to a network, and a network information design mechanism part 20 which automatically calculates the specification and quantity of required line and terminal adaptive packages 110, 120, shelf 200, and housing 300 and designs the packaging of the cabinet 300.
Patent JP-H04269078-A (JP)
Title: Image pickup signal processing circuit
Inventor: ASAIDA TAKASHI
IPC: H04N5/243
Filed: 1991-02-25
Abstract: PURPOSE:To implement correction processing such as white balance and white shading accurately by using a shading correction circuit with respect to an image pickup output signal. CONSTITUTION:An A/D converter circuit 7 digitizes an output signal of a pre-v circuit 6 implementing compression processing to a signal component of a pre-nu level or over with respect to an image pickup output signal of an image pickup element 4. A level detection circuit 8 detects the signal component of the said pre-nu level or over with respect to the digital image pickup output signal from the A/D converter 7. A level control circuit 11 controls the correction level represented by a shading correction data read from a memory 10 in response to the detection output data by the said level detection circuit 8. A shading correction circuit 9 applies shading correction processing to the said digital image pickup output signal based on the shading correction data fed from the said level control circuit 11.
Patent JP-S59177332-A (JP)
Title: Method for tapping molten metal from simultaneous smelting furnace for zinc and lead
Inventor: YUKITSUKA ZENSAKU
IPC: C22B13/02
Filed: 1983-03-25
Abstract: PURPOSE:To prevent discharging of the ore contg. Zn at a high rate in the end period of tapping by measuring successively the oxygen potential in the discharged ore in the stage of tapping, setting a specified reference and stopping the tapping. CONSTITUTION:The oxygen potential in furnace in the stage of tapping is measured at a prescribed time interval in a blast furnace for simultaneous smelting of zinc and lead. The tapping is stopped when the final measured value is within a target value or when the next measured value exceeds the value obtd. by adding a predetermined value to the upper limit of the target value if the final measured value is below the target value. The tapping is also stopped when the next measured value exceeds the value obtd. by adding a predetermined value to the first measured value if the final measured value is above the target value. The fluctuation in the average content of zinc in the tapped slag (content of zinc in the slag of the previous hearth) is thus minimized and the content of zinc in the slag is kept low.
Patent JP-S59180178-A (JP)
Title: Solenoid valve device
Inventor: KAMATA MASASHI
IPC: F16K31/06
Filed: 1983-03-28
Abstract: PURPOSE:To provide a solenoid valve device adapted to low-speed control an actuator and a circuit capable of manually operating the actuator simply by connecting IN ports of two three-port valves to each other, connecting the connecting path to a fluid source and connecting throttle valves to the respective EX ports. CONSTITUTION:A solenoid valve 1 includes a three-port two positions switching solenoid valve 2 and a three-port two positions switching valve 3 with a fluid pressure pilot, wherein an IN port 4 of the solenoid valve 2 and an IN port 5 of the switching valve 3 are connected to each other by a connecting path 6, and the connecting path 6 is connected to flow-in port P as the solenoid valve device 1 by a in-flow path 7. An OUT port 8 of the solenoid valve 2 is connected to the first outlet A by a passageway 9. An OUT port 10 of the switching valve 3 is connected to the second outlet B by a passageway 11. An EX port 12 of the solenoid valve 2 is connected to an exhaust port R as the solenoid valve device 1 through the first throttle valve 13, and an EX port 14 of the switching valve 3 is connected to the exhaust port R through the second throttle valve 15.
Patent JP-S58167078-A (JP)
Title: Welding method
Inventor: HIRAMOTO MASATAKE
IPC: B23K9/095
Filed: 1982-03-29
Abstract: PURPOSE:To obtain a stable weld bead having always a specified reinforcement of weld, by calculating the deposition rate of a wire necessary for packing a groove in accordance with the detected width of the groove gap and changing the polarity ratio of the wire. CONSTITUTION:A control device 6 calculates the necessary deposition rate of a wire by receiving the gap width signal from a sensor 2 and determines the polarity ratio of a welding machine 5. If the polarity ratio is selected suitably, only the deposition rate of the wire can be regulated without changing electric current, and the packing rate of the wire as weld metal is controlled in accordance with the width of the gap G.
Patent JP-H09247152-A (JP)
Title: Packet relay method and device
Inventor: OMORI YOSHIHIKO
IPC: H04L12/28
Filed: 1996-03-07
Abstract: PROBLEM TO BE SOLVED: To support a real time application while utilizing a network at a high utility efficiency by monitoring a mean cell rate and a burst length of a VC defined by an ATM UNI and sending a priority cell with priority among VCs sending cells. SOLUTION: A packet relay processing section R0 conducts relay processing of a received packet and outputs the packets to a packet division section D0. The packet is divided into cells of a fixed length by the packet division section D0, separated for each VC by a cell storage section B1 and separated into priority cells and non-priority cells and stored to any of buffers VC#11,.... A multiplex processing section M1 uses a control signal via a VC decision section S1 able to send cells, a transmission cell decision section T1 and a cell rate decision section U1 to decide an acquired cell from the buffer and cells are multiplexed in the same VC and sent. The VC decision section S1 monitors the mean cell rate and the burst length for each VC independently of the priority group and the non-priority group to decide the VC to be sent.