baber/WOPTO huggingface dataset:
Patent JP-H10279714-A (JP)
Title: Prepreg
Inventor: NINOMIYA HIROAKI
IPC: B32B5/14
Filed: 1997-04-02
Abstract: PROBLEM TO BE SOLVED: To obtain a prepreg comprising non-circular cross-sectional carbon fibers having a specific minimum secondary moment and a matrix resin comprising a terminal-reactive amic acid oligomer, excellent in compression strength at a high temperature under a moisture-absorbing condition, and suitable as a material for the primary structures of airplanes. SOLUTION: This prepreg suitable for carbon fiber-reinforced composite materials comprises (A) non-circular cross-sectional carbon fibers preferably treated with a sizing agent and each having a cross-sectional shape having a minimum secondary moment Pmin of >=0.085, preferably >=0.019, and a maximum secondary moment Pmax of >=0.13, and (B) a matrix resin comprising a terminal-reactive amic acid oligomer wherein the terminal reactive group is an addition-polymerizable group, a carbon-carbon triple bond group or a phenylethynyl group.
Patent JP-H03284554-A (JP)
Title: Paper feeder
Inventor: ANDO MASAO
IPC: G03G15/00
Filed: 1990-03-30
Abstract: PURPOSE:To simplify, lighten and miniaturize the feeder and reduce the cost by providing a single drive source for a plurality of paper feed means in common in a paper feeder main unit side and selectively driving the paper feed means. CONSTITUTION:A forward/reverse rotatable pulse motor M1, which serves as a common drive source for a paper feed roller 34 of an envelope feeder 32 and a paper feed roller 43 of a cassette paper feeder 33, is provided in a paper feed main unit 30. Driving power of the motor M1 is selectively transmitted to one of the paper feed rollers 34 or 43 by a drive transmission/switching means 50 formed by combining a one-way clutch and a gear train consisting of two systems of which rotary coupling direction is reverse each other. Reliability is improved while making device constitution possible to obtain its simplification, weight lightness, miniaturization and cost down by eliminating necessity for an electrically connecting means with a single drive source only required.
Patent JP-S58199867-A (JP)
Title: Method and device for etching aluminum alloy
Inventor: NAKAJIMA KIYOSHI
IPC: C23F1/20
Filed: 1982-05-18
Abstract: PURPOSE:To control an etching speed with the concn. of dissociated fluorine ions and to obtain a uniform etching rate, by replenishing components such as hydrofluoric acid, nitric acid and chromic acid in accordance with the analyzed results of an etching soln. CONSTITUTION:An Al alloy is beforehand dissolved at >=1g/l in a mixed acid of chromic acid, nitric acid and hydrofluoric acid in an etching tank 1 in the stage of etching an Al alloy. the mixed acid is fed to an automatic reduction titrator 5, an automatic neutralization titrator 6 and an ion electrode 7 so that the concns. of the chromic acid, nitric acid and dissociated fluorine ions are measured. The results are fed to an arithmetic device 8 for control which compares the same with set values and replenishes chromic acid, nitric acid, hydrofluoric acid and demineralized water from tanks 9-12 according to the deficient concns. of the respective components. After the respective components of the etching soln. are controlled to prescribed concns. by the above-mentioned method, an Al alloy is put in the tank 1, and is etched to a prescribed thickness.
Patent JP-H01255119-A (JP)
Title: Push button switch
Inventor: FUJIYAMA TERUKI
IPC: H01H13/52
Filed: 1988-04-05
Abstract: PURPOSE:To make the pattern of a movable contact unneeded, and the movable and fixed contact sides composable with a different material by contacting the peripheral part to a second fixed contact, arranging the movable contact the middle part of which is covering the upper part of a first fixed contact via an elastic insulation sheet, and contacting the movable contact with the middle part pressed. CONSTITUTION:A first fixed contact 2 is arranged on a substrate 1, and also a second fixed contact 3 is arranged on the circumference of the contact 2 and on the part where the drawer part of the contact 2 is excepted. A movable contact 7a, in which the periphery part is contacted to the contact 3 and also the upper part of the contact 2 is covered with the middle part, is arranged on the upper part of the contact 3 via an insulation sheet 5, and a push button 8, by which a movable contact 7 is contacted to the contact 2 with the middle part of the sheet 5 pressed, is arranged. This makes it possible to obtain the switching resistance of the same as the previous level in a high resistant and low cost carbon printing, and to ease the combination of different materials for the second fixed contact and movable contact.
Patent JP-S5710319-A (JP)
Title: Exhaust gas filter for internal combustion engine
Inventor: KINOSHITA HIROO
IPC: B01J35/04
Filed: 1980-06-23
Abstract: PURPOSE:To obtain a filter which is high in mechanical strength and thermal shock resistance, permits easy holding in an exhaust system and allows combustion and removal of fine particles only with the heat energy of exhaust gas by forming the  filter of a foamlike metallic body of prescribed porosities and number of cells. CONSTITUTION:A foamlike metallic bod  which consists of single metal of Ni, Cr, etc. or their alloy and has >=90% porosities and 2-15 pieces/cm number of cells is formed into an exhaust manihold shape or cylindrical shape in accordance with the places of installation, whereby the filter element is formed. This is inserted into a manihold vessel or heat resistance cylindrical member and is secured thereto. The exhaust manihold or filter constituted in this way is mounted to the exhaust pipe system of an engine.
Patent JP-H04316995-A (JP)
Title: Image guidance device
Inventor: NAKANO MIKI
IPC: H04N7/18
Filed: 1991-04-16
Abstract: PURPOSE:To obtain a guidance device for a missile, which is hardly detected by an enemy. CONSTITUTION:A missile, having an inertia navigation device 7 and an auto- pilot device 3, is provided with a flight route setting device 5, receiving signals from a fore image pickup device 1 and a lower image pickup device 4, which are loaded on the same missile, detecting an intermediate passing objective point, set and inputted previously, setting a flight route from a present place and transmitting it to an auto-pilot device 3, and a picture-terrain counter matching device 6, receiving the signals from the flight route setting device and a lower image pickup device 4, operating the deviation of the lower intermediate passing objective point and transmitting it to the auto-pilot device 3. According to this method, the missile is guided to a target with an excellent accuracy without projecting any radio wave by itself.
Patent JP-H01257752-A (JP)
Title: Fuel tank for internal combustion engine
Inventor: HAYASHI SHUNICHI
IPC: C08K7/00
Filed: 1988-04-07
Abstract: PURPOSE:To obtain a fuel tank of light-weight having resistance, satisfying heat resistance and a mechanical characteristic and having a large degree of freedom of machining by forming the fuel tank of an internal combustion engine with a material in which mica powder is uniformly mixed with polyethylene. CONSTITUTION:The fuel tank of an internal combustion engine is formed with a material in which mica powder is uniformly mixed with polyethylene. Any polyethylene will do so long as it is a polyethylene compound specified by the JIS K6748. As for mica powder, it is desirable to use one within the range of an aspect of 23-120. The mixing ratio between the polyethylene and the mica powder is desirably the mixing ratio of the mica powder within the range of 5-40wt.%.
Patent JP-H05103508-A (JP)
Title: Intermediate coupling device for traction device
Inventor: MASHIYUU TOOMASU MIRAA
IPC: A01B63/22
Filed: 1992-04-06
Abstract: PURPOSE: To improve operability in the state of connecting the device cylinder of a tractor and the hitch controller of the tractor by arranging a specific selector valve and a control valve between a hitch control valve and the device cylinder. CONSTITUTION: The hitch control valve 16 is selectively connected to the device cylinder 48 of the tractor 40 by a two-position/four-direction selector valve 50 to lift the hitch 15 to a highest position by the connection. A four-position/ four-direction selective control valve 52 is connected between the valve 50 and the device cylinder to control the device cylinder independent from the hitch control valve.
Patent JP-H04250017-A (JP)
Title: Extruder to make synthetic substance by feeding at least one fiber bundle
Inventor: BERUNHARUTO SHIYOIRINGU
IPC: B29C48/09
Filed: 1991-04-16
Abstract: PURPOSE: To provide an extruder capable of producing plastics reinforced with short fibers having excellent mechanical properties. CONSTITUTION: A hole for inserting a fiber strand 42 is led to a impregnating zone 35 formed in a casing 1. The impregnating zone 35 comes out of casing bores 11, 12 at the downstream of a melting zone 4 in the conveying direction 29 while the end of the impregnating zone 35 is led to a mixing zone 6 at the downstream of the area 36 in which the impregnating zone 35 starts in the conveying direction 29.
Patent JP-S57198623-A (JP)
Title: Selective diffusion
Inventor: IKEUCHI TATSUYA
IPC: H01L21/22
Filed: 1981-05-30
Abstract: PURPOSE:To establish a diffusion of impurity with high accuracy withour contamination by using a mask obtained by providing exposure and development for inorganic resist containing a mixture of Si and Si oxide. CONSTITUTION:Inorganic resist layer containing a mixture of Si and Si oxide and sensitive to electron ray is voated on Si substrate to establish exposure and developement by electron rays. The development process is established by an etching using fluoride solution or Si reactive plasma gas. More stable feature of  a semi-conductor can be obtained without contamination of Na<+> or the like by  dry etching. A resist pattern of desired film thickness can be obtained in accordance with the irradiation amount by electron rays. A mixture resist of Si and  SiO2 can be used for a mask for impurity diffusion. But the effect is not so  strong as SiO2. SiO2/Si is equivalent to 3. When the mask is used, Si wafer is  not contaminated by Na<+> or the like and the diffusion for the impurity with a  size and a high accuracy as desired can be established.
Patent JP-S63248983-A (JP)
Title: Cavitation preventing device of liquid-sealed vacuum pump
Inventor: KODAMA AKIRA
IPC: F04B37/16
Filed: 1987-04-06
Abstract: PURPOSE:To prevent the generation of noise and suction of foreign material and to correctly control the concentration of the constituents of the inhaled gas by installing a cavitation preventing means into a suction pipe of a vacuum pump or a connecting pipe for a vacuum tank equipped with a sand separator connected with the suction pipe and the exhaust pipe of a gas-liquid separating means. CONSTITUTION:When the negative pressure side of a vacuum pump 1 becomes below a saturated vapor pressure, the signal of a detecting means is input into a cavitation preventing means 11, which is operated. Then, the exhaust gas which is supplied from the vacuum pump 1 and from which water is separated by a gas-liquid separating noise suppressing means 7 is attracted into the negative pressure side, thus suppressing cavitation and noise is prevented. Even if the installation place is in a bad environment where powder dusts float, attraction of foreign material is prevented, and a large difference in the concentration of constituents on the upstream and downstream sides from the connection part of a connecting pipe 10 is not generated, in the detection of concentration of the constituents of the sucked gas from a vacuum container 5 and the concentration control on the basis of the exhaust concentration, and correct control for concentration can be carried out.
Patent JP-S58200184-A (JP)
Title: Detecting device for reflected electron
Inventor: HASHIMOTO NOBUYOSHI
IPC: G01T1/28
Filed: 1982-05-18
Abstract: PURPOSE:To simplify the structure of the titled device and to enable an operation of high performance for a long time, by using a detecting element formed of a light element member. CONSTITUTION:An irradiation electron beam 9 passes through the hole of a pole piece 10a of an upper object lens above a stop plate 7 and then through the hole of the plate 7 and that of a detecting plate 8, and moves for scanning a sample 11, while irradiating the same. From the sample 11 a reflected electron 12 is generated, and it is detected by the plate 8. A transmission electron 13 which transmits through the sample 11 and advances straight passes through the hole of a pole piece 10b of a lower object lens and forms the image of the sample on a fluorescent plate. In this case, the detecting plate 8 is made of a light element metal such as aluminum or beryllium, and a reflected electron image formed when the sample 11 is scanned by the finely-restricted irradiation electron beam 9 is detected by the plate 8 and displayed by a monitoring device 20.
Patent JP-S5610837-A (JP)
Title: Disc brake
Inventor: FUKUDA HIROHIDE
IPC: F16D65/18
Filed: 1979-07-05
Abstract: PURPOSE: To secure smooth brakng performance even when calipers and a brake disc are mounted over and under the springs, respectively, by supporting the calipers swingably with an elastic sleeve, spherical bushing, etc. at the connecting part of the fixed member and the calipers to the body.  
     CONSTITUTION: In a disc brake used in rolling stocks of the type that a brake disc 40 is fixed to the axle, which is born by the body through a suspension device, and calipers 2 are fixed to the fixed member 1 which is mounted directly to the body, brackets 21, 23 are provided protruding upward at the outside of a pair of cylinders 28 arranged at the left and right of the calipers 2. A pin 7 is inserted between these two brackets 21, 23, and a boss 12 of the fixed member 1 is inserted and supported at the central part of the pin 7 with an elastic sleeve 15. In the central part of the calipers 2, also, a pair of brackets 24, 26 are provided to support a pin 10, in the central part of which a boss 13 of the fixed member 1 is inserted and supported through barrel shaped bushing 30. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H03287846-A (JP)
Title: Device for applying tension in textile machine
Inventor: MACHII AKIHIKO
IPC: D04C3/00
Filed: 1990-03-30
Abstract: PURPOSE:To lead out a weaving material while applying a tension of nearly a constant value thereto by leading out the weaving material with extension of a spring by taking out force to the weaving material and shifting an engaging position of the spring by one pitch. CONSTITUTION:One end of a spring 7 is connected to a material holding member 4 and an engager 9 of an engaging means 8 for changing an engaging position of the spring with a fixed member in many stages and engaging the spring therewith is attached to the other end of the spring. The aforementioned device is provided with an engaging position regulating means for releasing engagement of an engaging pawl 10 with an engaging hole 11 and shifting the engaging position of the fixed member with one end of the spring in the delivering direction of the weaving material by one pitch of the engaging hole 11 when a tensile force of a constant value or above acts on the spring.
Patent JP-H11279796-A (JP)
Title: Formation of film and metallic stock
Inventor: SASAKI MOTOHIRO
IPC: C25D13/06
Filed: 1998-03-30
Abstract: PROBLEM TO BE SOLVED: To provide a method for forming a film on a metallic surface free from the generation of sludge and excellent in corrosion resistance without using phosphorus and chromium compds. SOLUTION: Pretreatment is executed by degreasing, hydroxycarboxylic acid compds. or ascorbic acid compds., next, metal is immersed into an aq. soln. contg. a camps. of at least one kind among the following (A), (B), (C) or (D), and, with this metal as a cathode, the electric current is made to flow between it and an anode to electrolytically precipitate the following comps. :  (A) a monomer contg. a sulfonium group in the molecular, (B) a water soluble polymer obtainable by the homopolymerization or copolymerization of the above monomer, (C) emulsion or a water soluble polymer with a sulfonium group obtainable by the copolymerization of the above monomer (A) and a radial polymerizing unsaturated monomer and (D) composite emulsion with a sulfonium group in which, with inorganic particles as the nuclei, the inorganic particles are coated with a coating layer obtd. by copolymerizing the monomer (A) and the radical polymerizing unsaturated monomer.
Patent JP-H01256106-A (JP)
Title: Manufacture of composite magnetic material
Inventor: IMAGAWA SHUNJIRO
IPC: H01F1/22
Filed: 1988-04-05
Abstract: PURPOSE:To improve mechanical strength and frequency characteristics of permeability, by forming mixture by mixing iron powder, thermosetting resin and solvent, and molding the mixture. CONSTITUTION:Iron powder being the material of a core 10, thermosetting resin in a state before hardening, and solvent for the thermosetting resin are mixed, thereby forming mixture. In this case, the ion powder and the thermosetting resin are subjected to so-called wet mixing. As a result, the surface of iron powder is covered by the thermosetting resin. In the process of forming the mixture, or after the mixture is formed, the solvent is eliminated. Thereby, the mechanical strength of the compound magnetic material is increased, and frequency characteristics of the permeability is improved.
Patent JP-H05251154-A (JP)
Title: Manufacture of sliding contact
Inventor: SATO MORITOSHI
IPC: H01R43/12
Filed: 1992-03-06
Abstract: PURPOSE:To obtain a sliding contact having a long lifetime by punching a band-shape material into a predetermined form, and pressing the tip surface to smoothen it, and thereafter, forming it into an inverted-L shape CONSTITUTION:A thin plate band material 1 made of Ag at 40%, Pd at 40%, and Cu at 20% is punched by a progressive die to form a comb teeth shape 2 in one side of the flat surface. Next, the comb teeth shape 2 is pressed by dies 3, 4 to smoothen the tip thereof, and the comb teeth shape 2 is formed into an inverted-L shape, and finally, the tip is cut to manufacture a sliding contact 5.
Patent JP-H08253914-A (JP)
Title: Solar cell panel integrated sound-insulating panel
Inventor: NONOYAMA NOBORU
IPC: E01F8/00
Filed: 1995-03-15
Abstract: PURPOSE: To obtain a transparent solar cell integrated sound-insulating panel which causes no radio wave obstacle. CONSTITUTION: This solar cell panel integrated sound-insulating panel 15 comprises five solar cell panels 2. Each solar cell panel 2 consists of a rectangular-shaped solar cell 2a and an acryl plate 2b where the solar cell 2a is a film-like transparent amorphous solar cell and bonded with the transparent acryl plate 2b which serves as a support plate. Each solar cell 2 is mounted on an aluminum-made frame 4. A frame mounting hole 4a is opened on the lower side of the frame 4. The five solar cell panels 2 are electrically parallel connected. The solar cells 2 thus connected side by side are connected to a wall socket 6 and a socket 8.
Patent JP-H07297507-A (JP)
Title: Printed circuit board
Inventor: KUBOTA SATOSHI
IPC: H05K1/02
Filed: 1994-04-22
Abstract: PURPOSE:To prevent disconnection and to improve reliability by providing a part wherein external force is applied to a specified position and by forming a pattern wiring in an area near the part of an electric wire. CONSTITUTION:A printed circuit board 5 is provided with a part 1 wherein external force is applied to a specified position and a pattern wiring in an area near the part 1 is formed of an electric wire 2. That is, the part 1 wherein external force is applied is made a division line which divides the printed circuit board 5 after mounting of the part and the division line is formed to divide a corner edge part 3 which is a dummy part of the square printed substrate 5. Therefore, when external force is actually applied to the part 1 whereto external force is applied, the printed circuit board 5 is elastically deformed due to the external force; however, since a pattern wiring in an area near the part 1 whereto external force is applied is formed of the electric wire 2, disconnection of a copper foil, etc., can be prevented. Furthermore, since the electric wire 2 is not disconnected due to external force such as impact applied during division of the printed circuit board 5, product defective can be reduced.
Patent JP-S528755-A (JP)
Title: Bias circuit
Inventor: NEZU SHIYUNICHI
IPC: H03F1/30
Filed: 1975-07-10
Abstract: PURPOSE:Stabilize the base bias of an aft-stage transistor by changing conductivity of a transistor added to the aft-stage transistor side in a dual-stage directioncoupled amplifier circuit corresponding to power voltage.
Patent JP-S5639929-A (JP)
Title: Device for adjusting height of automotive seat
Inventor: KAZAOKA KENICHI
IPC: B60N2/16
Filed: 1980-06-23
Abstract: PURPOSE:To simplify the construction of the adjusting device by permitting a latch coupled to a seat section to be displaceable in the directions of engagement and disengagement with respect to a meshing member also permitting rotational displacement for height adjustment of the seat according to the operation of a handle lever. CONSTITUTION:A pin 27 is secured to the end of one of pair brackets 12, and a latch 26 which is capable of engagement and disengagement with respect to the pin 27 is secured to a shaft 23 rotatably mounted on a bracket 12. The latch side of the shaft 23 is supported in a slot 24, and its pivotal mounting position is displaceable in the direction of the engagement and disengagement. A handle level 13 is coupled to the shaft 23 via an L-shaped hole 25, and the engagement and disengagement of the latch with respect to the pin 27 can be effected with the displacement of the shaft 23 within the slot 23. Designated at 28 is a handle return spring.
Patent JP-S5311448-A (JP)
Title: Elevator operating system
Inventor: SHIMA KIYONARI
IPC: B66B1/28
Filed: 1976-07-19
Abstract: PURPOSE: To enable changing the speed and acceleration of the cage of an elevator by the operation in the cage. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H03280098-A (JP)
Title: Orchestral accompaniment device
Inventor: TANAKA YASUMI
IPC: G10H1/00
Filed: 1990-03-29
Abstract: PURPOSE:To perform complete rewinding to a part that a singer wants to sing again through easy operation and to restart performance by providing a performance information storage means, a performance reproducing means, an input means, a detecting means, a program search processing means, and a performance restarting means. CONSTITUTION:Performance data as performance information is stored in a memory device 3 and a CPU part 2 reads the performance data out of the memory in order, and processes and outputs the data as a sound from a reproducing device 4. If the singer sings a song incorrectly during the performance of its orchestral accompaniment by the orchestral accompaniment device or wants to sing a last phrase once more, the singer presses the backward switch 1 of the input means. Then the CPU part 2 of the detecting means once detecting the input signal from the backward switch 1 makes a program search and restarts the performance. Consequently, the complete rewinding right to the part that the singer wants to sing again is performed by the easy operation wherein the switch is pressed only once and the performance can be restarted.