baber/WOPTO huggingface dataset:
Patent JP-S5918916-A (JP)
Title: Tessar type photographic lens
Inventor: YAMADA YASUYUKI
IPC: G02B9/20
Filed: 1982-07-23
Abstract: PURPOSE:To obtain a small-sized lens whose aberrations are compensated excellently by providing the 1st-the 4th lens group which have a positive, a negative, a negative, and a positive refracting power from an object side successively, and allowing them to meet various specific requirements. CONSTITUTION:This lens system consists of the 1st meniscus positive lens having a convex surface on the object side, the 2nd biconcave lens with the negative refracting power, the 3rd lens with the negative refracting power, and the 4th biconvex lens with the positive refracting power successively from the object side. The 3rd and the 4th lenses are combined together into a lens having a positive refracting power. Then, this system meets requirements shown by inequalities I -VIII. In the inequalities R1 is the radius of curvature of the (i)th lens surface (i=1-8) successively from the object side and Di is the thickness and air gap of the (i)th lens (i=1-6); and Ni and upsiloni are the refractive index and Abbe number of the (i)th lens, and (f) is the focal length.
Patent JP-S63292029-A (JP)
Title: Torque sensor
Inventor: NAGANO EISHIN
IPC: G01L3/10
Filed: 1987-05-26
Abstract: PURPOSE:To obtain a sensor, which is characterized by excellent productivity and excellent durability and is not subject to the effect of temperature, by providing a torsion bar in an input shaft, and detecting the change in electromagnetic couplings accompanied by the relative rotation of magnetic cylinders, which are provided on both sides. CONSTITUTION:A torsion bar 1b is provided in the middle of an input shaft 1. Magnetic cylinders 11 and 12 are fixed to one side of the bar 1b. A magnetic cylinder 13 is fixed to the other side. Annular coils 21-23, which are electromagnetically formed with said cylinders, respectively, are fixed at the outer surface sides of the cylinders. The cylinders 12 and 13 have asymmetric shapes with respect to the axial center of the shaft 1. When, rotary torque is applied to an upper shaft part 1a of the shaft 1, the bar 1b is twisted in correspondence with the torque. The cylinder 12 is relatively rotated with respect to the cylinder 13. Then, the electromagnetic coupling with the cylinders are changed in correspondence with the amount of rotation. Since the electromagnetic coupling states of the cylinders 11 and 12 and the coils 21 and 22 are not changed, the applied torque can be detected based on the difference in signals obtained from the coils 21 and 23. The effects of temperature changes are offset since the difference between the coils 21 and 23 is obtained.
Patent JP-S63295039-A (JP)
Title: Coating material for expendable pattern for precision casting
Inventor: TAGUCHI CHOBE
IPC: B22C9/04
Filed: 1987-05-26
Abstract: PURPOSE:To prevent burning at cast molten metal to a mold, to improve quality and yield of a product and to reduce production cost by coating an expendable pattern for precision casting with coating material containing hexagonal system boron nitride. CONSTITUTION:The hexagonal system boron nitride having few micro size at a market is suspended in organic solution of water or alcohol and 1,1,1- trichloroethane, etc. The solution constituted in such a way is coated on the expendable pattern for precision casting to form the coating film of the hexagonal system boron nitride. By this constitution, the burning of the cast molten metal to the mold is prevented and the quality of the product can be improved.
Patent JP-S61287644-A (JP)
Title: Takeout-conveying device for paper sheets
Inventor: TAKAHASHI KAZUYUKI
IPC: B65H9/00
Filed: 1985-06-13
Abstract: PURPOSE:To handle paper sheets so efficiently at generous speed with a device, by converting a sense of these paper sheets taken out one by one from a housing part and, making the tip end a criterion, conveying them to a handling device upon keeping a flowing interval constant. CONSTITUTION:Paper sheets P are taken out one by one by a suction belt 5 from a housing part 1 housing these paper sheets P jogging each rear end to a takeout direction, and a sense of them is converted at a direction converting device 11 through a conveying passage 12, a stopper 13 and a conveying passage 14 and delivered in making the tip end a criterion to the conveying direction. Therefore, these paper sheets P delivered out of the device 11 are conveyed in a state that the tip end has a specified interval 2b to the conveying direction of paper sheets P-1, P-2 and P-3 at the front and rear sides in the conveying direction. And, at a reading part 8 of a handling device and a gate part 9, reading and section handling are carried out at a constant handling speed in making the tip end of these paper sheets P a criterion.
Patent JP-H04356394-A (JP)
Title: Laser beam machine
Inventor: KUSAKA TAKESHI
IPC: B23K26/08
Filed: 1991-05-31
Abstract: PURPOSE:To prevent a fact that an end edge of a work is caught by a cutting plate or hangs down, to improve the dust collection efficiency, and also, to easily take out a product, in the laser beam machine of a uniaxial work/uniaxial light moving type. CONSTITUTION:In the laser beam machine 1 of a uniaxial work/uniaxial light moving type, a cutting plate 21 is provided so as to be freely movable synchronizing with a laser beam machining head 11, a cover 23 is provided on both sides of the cutting plate 21, and also, the cutting plate 21 is freely inclinable, and moreover, a steel belt 111 is stuck onto the surface in the longitudinal direction of the cover 23.
Patent JP-S5654014-A (JP)
Title: Superconductive field winding
Inventor: NUMATA SEIJI
IPC: H01F6/06
Filed: 1979-10-08
Abstract: PURPOSE:To prevent the generation of cracks of the resin impregnated field winding by a method wherein a surface coating layer is formed by a resin layer fast stuck on the surface of a conductor and a fibrous material coated on the resin layer in the superconductive field winding in which the generation of cracks of resin is prevented. CONSTITUTION:The stabilized superconductive winding is formed by the resin layer 8 fast stuck on the surface of a conductor 7 and the fibrous insulating material 9 coated on the resin layer. Here, the material such as a polyimide insulating coating layer is used as the insulating layer 8, and the material formed by a cloth tape consisting of glass fiber or polyester fiber is employed as the material 9. Since such a conductor is used, the material 9 on the surface absorbs and moderates stress among conductors, and the generation of cracks can be prevented.
Patent JP-H0428640-A (JP)
Title: Sheet carrier device and relative recording device
Inventor: HARADA TSUTOMU
IPC: B41J13/00
Filed: 1990-05-21
Abstract: PURPOSE:To simplify structure and improve carrying precision of a word processor, etc., by carrying sheets along a guiding member through a carrying roller and a slave roller and forming in the guiding member a guide portion to guide the tips of sheets to the nips of both rollers. CONSTITUTION:A back-feed roller 7 and a front-feed roller 8 are provided in opposition to a platen roller 3, and a paper pan 6 is installed along the periphery of the platen roller 3. The front roller 8 has a small-radius recessed portion 8c, and the paper pan 6 has the hole portion 6b provided with the protruded guide portion 6e at the end in opposition to the recessed portion 8c. This ensures that the tips of carried sheets 1 are guided to the nip portion of the platen roller 3 and the front roller 8 through the guide portion 6e, entered in between both rollers and carried.
Patent JP-S6112482-A (JP)
Title: Manually-operated device for particularly steering motorcycle
Inventor: ANDORE DOU KORUTANZE
IPC: B62D1/12
Filed: 1985-06-13
Abstract: A manual actuating device for a motorcycle steering that allows the motorcyclist to push and pull right and left handles to affect turning of the motorcycle. Each handle is connected through a three bar set to a rotatable connecting bar which is integral with a return lever which is pivotally attached to a steering rod.
Patent JP-S5253419-A (JP)
Title: Display device in finder with led
Inventor: KAWASAKI MASAHIRO
IPC: G03B19/12
Filed: 1975-10-27
Abstract: PURPOSE: To eliminate the change of display at the time of a camera work by closing a switch prior to the rise of a mirror andh olding a value of A/D conversion circuit to be the value of the circuit prior to the closure of the switch in the display which has the A/D conversion circuit for driving the display LED. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H07336431-A (JP)
Title: Telephone set
Inventor: KAWABATA HIDEYUKI
IPC: H04M1/65
Filed: 1994-06-10
Abstract: PURPOSE:To store and reproduce the telephone numbers, the addresses, the names, etc., which are spoken by the opposite calling party in a busy mode by providing the recording and reproducing switches which operate an automatic answering telephone recording/reproducing means in both recording and reproducing modes respectively in a busy mode. CONSTITUTION:A recording switch 14 and a reproducing switch 15 are prepared in addition to an automatic answering telephone mode switch 9 and an automatic answering telephone recording/reproducing switch 10. Then the switch 14 is turned on when the desired one of those telephone numbers, addresses, company names, person names, etc., spoken by the opposite calling party is stored in a busy mode. Thus a controller 8 actuates an AD/DA converter 12 as an AD converter which fetches the voice signals from a voice circuit 4 in a busy mode to apply the AD conversion to these signals. Then the converted digital signals are written in a voice storage area of a memory 11. Meanwhile the voice data are read out of the memory 11 when the switch 15 is turned on in a busy mode. Then the stored voice data undergo the DA conversion by the converter 12 and outputted through a speaker 13 as sounds. Thus the voices can be stored in the memory 11 in a busy mode.
Patent JP-H06342684-A (JP)
Title: Manufacture of sliding contact
Inventor: SAYAMA MITSUYOSHI
IPC: H01C17/00
Filed: 1992-04-22
Abstract: PURPOSE:To provide an inverted-L-shape sliding contact having the smooth tip surface by pressing the teeth-of-comb-like tip ends to form them into the circular-arc shape, and thereafter, forming them into the inverted-L shape. CONSTITUTION:One side of a flat belt-like material composed of Ag at 40%, Pd at 40% and Cu at 20% and having 0.08mm of thickness and 18mm of width is punched by a progressive die into teeth-of-comb-shape 1' having the circular- arc and smooth tips. These tips are formed into the inverted-L shape, and cut to form a sliding contact 2. The sliding contact, which can make contact stably and which has a long lifetime, is thereby obtained without wearing an opposite board abnormally at the time of sliding contact.
Patent JP-H01301448-A (JP)
Title: Acceleration slippage controller
Inventor: KUNIMI TAKASHI
IPC: B60T8/58
Filed: 1988-05-27
Abstract: PURPOSE:To reduce the size of an acceleration slippage controller by carrying braking liquid pressure from a master cylinder to driving wheels via the main liquid passage inside a braking system. CONSTITUTION:When an acceleration slippage occurs at one or both of driving wheels Fa and Fb, the present revolution speed of the wheel(s) is detected by a wheel speed sensor Sf, which sends the detected signal If to an electronic control unit U. The control signal V1 from said unit U is sent to the driving motor M of a hydraulic pump to operate the motor. The liquid pressure from the hydraulic pump is sent to the driving wheels Fa and Fb to restrain the revolutions thereof. The sent liquid pressure is kept at the specified value by the operation of relief valves 40A and 40B and hold valves 41A and 41B. During this time, gate valves 42A and 42B are kept closed to inhibit liquid pressure to be sent to driven wheels Ra and Rb. The change-over operation of the valves 41A and 41B and valves 43A and 43B is controlled to open them by the control signal V3 from the electronic control unit U.
Patent JP-S5464286-A (JP)
Title: Liquid metal cooler
Inventor: MATSUMOTO KOUICHI
IPC: G21D1/00
Filed: 1977-10-31
Abstract: PURPOSE: To pretect concrete from hot sodium to restrict the temperature and pressure rises in a room atmosphere by installing a sodium cooler and an automatic malfunction detector on a floor so that the sodium leaking due to breakage of the piping may be stored and cooled with cooling gases.  
     CONSTITUTION: A floor concrete 1 is formed thereon with clearances A and B acting as cooling gas passages. The clearance A is constructed of a metal plate 22a formed with a number of anchored open short tubes 22, which are sealed with a cover member 21 to constitute the clearance B. There is arranged above the cover ember 21 a grid plate 23 which is formed with a funnel-shaped opening 23a. When hot sodium leads into the room as a result of the breakage of its piping, a pressure detector detects this so that a controller drives a compressor and a cooler. As a result, the sodium thus having leaked is stored in a recess 25, after it dropped into the opening 23a of the cooler, and is prevented from spreading by a partition 24 so that the concrete 1 can be protected from the hot sodium. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S5824218-A (JP)
Title: Filter device
Inventor: MORII KOUKICHI
IPC: H03H3/08
Filed: 1982-07-26
Abstract: PURPOSE:To change the band characteristics of a filter from wide band characteristics to narrow-band characteristics, by providing switches for grounding hot-size electrodes of input and output transducers selectively. CONSTITUTION:Input and output transducers 4 and 5 are formed on hot-side and cold-size electrodes, split into several, on a piezoelectric body, and a signal input terminal 8 is connected to hot-side electrodes 7a and 7c of the input transducer 4. Similarly, a signal output signal 11 is connected to hot-side electrodes 10a and 10c of the output transducer 5. The remaining hot-side electrodes 10a and 10c of the transducers are connected to a terminal (a), and grounded selectively through changeover switches. For this purpose, when the changeover switches S1 and S2 provided to the transducers 4 and 5 are placed on the sides of a terminal (b), the electrodes 7b and 10b are connected to the terminals 8 and 11 respectively. When they are changed over to the sides of a terminal (c), the electrodes are grounded. Once the electrodes 7b and 10b are grounded, electrode couples are decreased, so the filter has a narrow band characteristics.
Patent JP-S62285894-A (JP)
Inventor: TAKEMURA JUNICHI
IPC: B66B31/00
Filed: 1986-06-04
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-S63296470-A (JP)
Title: Color image reader
Inventor: KAWAI TAKASHI
IPC: H04N1/48
Filed: 1987-05-28
Abstract: PURPOSE:To easily and properly execute a correction conforming to the kind of the color negative film of a reading image by using a color filter for a shading correction. CONSTITUTION:Storing means 106-108 to respectively store an output decomposed to the three primary colors of R.G.B. when a color filter is projected and image-formed and arithmetic means 105 and 111 to calculate an output read from the storing means, a correcting coefficient conformed to the kind of a color negative film and an output to read the image of a color negative film original are equipped. Thus, an output value from the R.G.B. color decomposing sensor of the color filter is conformed to the kind of the negative film, calculated and corrected and the output value of the R.G.B. color decomposing sensor of the image to be read can be properly corrected.
Patent JP-H09312026-A (JP)
Title: Tracking controller for optical disk device
Inventor: NAKANO JUNICHI
IPC: G11B7/085
Filed: 1996-05-24
Abstract: PROBLEM TO BE SOLVED: To effectively suppress only remaining control difference caused by friction without oscillating tracking control by making a tracking control correcting means to correct tracking control based on the output of a friction state estimating means. SOLUTION: While a focus is formed for the information track of an optical disk 2 by a light beam 4, a TES detection circuit 21 produces a tracking error signal, and a phase compensation filter 23 performs phase advance compensation for stabilizing a tracking operation for a tracking error signal and phase delay compensation for improving tracking following at a low frequency. A friction state estimating circuit 22 estimates the period of a static friction state by detecting the increase of a local tracking error caused by static friction and then outputs a control signal. Thus, the gain of the phase compensation filter 23 is increased temporarily by 3dB and remaining control difference caused by friction is suppressed by the increase of a servo gain.
Patent JP-S61288203-A (JP)
Title: Input/output interface for microcomputer
Inventor: KONDO HISAO
IPC: G06F3/05
Filed: 1985-06-17
Abstract: PURPOSE:To improve the reliability by correcting the zero adjustment and the span adjustment of A/D and D/A converters constituting the input interface of a microcomputer by a program of the microcomputer. CONSTITUTION:The input interface consists of a multichannel signal conditioner 2, an input multiplexer 3, a sampling holder 4, an A/D converter 5, a control circuit 6, and a reference voltage generating circuit 25. The output interface consists of a control circuit 15, a D/A converter 16, an analog multiplexer 17, sampling holders 18, amplifiers 19, a reference output generator 26, and an output selecting circuit 28. In this case, adjusting programs are stored in the microcomputer in stead of the use of variable resistors and are processed to correct the zero adjustment and the span adjustment of the A/D converter 5 and the D/A converter. Thus, the error on hard-ware is absorbed to improve the reliability.
Patent JP-H0426967-A (JP)
Title: Magnetic disk driving device
Inventor: NAKAMURA ISAO
IPC: G11B21/12
Filed: 1990-05-22
Abstract: PURPOSE:To surely save the magnetic head in stopping the electrification during operations by forming the cam surface of a spreader by a material with high lubricity. CONSTITUTION:Near the outer circumferential edge of a hard disk 1, a spreader 8 fixed to a chassis 7, is arranged, a coating film 9 composed of the material with high-lubricity such as fluoro-resin or the like is respectively applied to a cam surface 8a which is the slope of respective spreaders 8. Therefore, a guide arm 6 can be moved smoothly along the cam surface 8a when saving a magnetic head 3. Thus, there is no risk of the stop of saving operation in the course of the cam surface 8a even when the counter electromotive force is insufficient so that the guide arm 6 can be run onto a flat surface 8b without fail.
Patent JP-H10286329-A (JP)
Title: Racket
Inventor: HONJO TERUBUMI
IPC: A63B51/02
Filed: 1997-04-14
Abstract: PROBLEM TO BE SOLVED: To provide a racket in which the replacement of a broken gut can be performed within several minutes by a portable small tool. SOLUTION: Only several lines of longitudinal guts at the central part of a racket surface where 95% or more of gut breakages generate, are constituted of each line of an independent gut 3. Then, on both ends of each independent gut 3, a connecting means to be fixed to the frame 1 of the racket is provided, and is connected to a connecting means equipped with a tension applying means for the gut, which is provided on the frame, and the guts 3 are fixed by applying a specified tension. By this method, even during a game, a player or a person other than the player can repair the racket, and the racket can be used right away. The racket does not need to be sent to a specialized shop for repair, and the cost can be reduced to one tenth or lower.
Patent JP-H01300464-A (JP)
Title: Driving device for information storage medium
Inventor: TABE KOUICHI
IPC: G11B17/028
Filed: 1988-05-30
Abstract: PURPOSE:To increase the resistance in the rotational direction and to prevent the occurrence of slippage between a hub of an information storage medium and a turntable by forming the hub and its fitting part of the turntable to be noncircular respectively and fitting them to each other. CONSTITUTION:The hub 8 of the information storage medium (optical disk) 1 housed in a cartridge 2 is formed in shape to be noncircular, and the fitting part 4c of the turntable 4 is formed to be noncircular in accordance with the shape of this hub 8. Because of this, when the rotation is turned into a high speed state at the time of driving the rotation or at the time of the first transition and last transition of the high speed rotation, the resistance in the rotational direction is increased between the hub 8 and the fitting part 4c. By this method, the occurrence of the slippage between the two parts can securely be prevented, thus preventing an error from arising at the time of writing or reading data during the high sped rotation of the optical disk 1.
Patent JP-S63292544-A (JP)
Title: Arc extinguishing device
Inventor: MATSUDA JUNICHI
IPC: H01H73/18
Filed: 1987-05-25
Abstract: PURPOSE:To promote propagation of arc and prevent insulation deterioration around joints by furnishing a U-shaped porous magnetic substance for feedback to the joint and an insulation for covering the inner surface of this porous magnetic substance. CONSTITUTION:When tripping action of an opening/closing mechanism turns a movable contact piece 9 into pole opening action and generates an arc between a movable contact 8 and a fixed contact 6, the flux generated around the arc concentrates on a porous magnetic substance 5 to cause generation of a flux between side plates 13 in such a way as in interlinkage with the arc, which is thus driven toward the exhaust hole 2 and propagated. The arc gas generated at this time is exhausted to the exhaust hole 2, and part of it is fed back to the joint 1 to be in neg. pressure via the porous magnetic substance 5, to eliminate hindrance to arc propagation because of the joint side becoming neg. pressure. When part of the arc gas is fed back in the porous magnetic substance 5, therefore, the porous magnetic substance 5 cools the arc gas and carbon and/or molten metal dust is attracted to the porous magnetic substance 5. This promotes propagation of the arc and insulation deterioration is prevented around the joint 1.
Patent JP-2000317613-A (JP)
Title: Injection-forming method of metallic matrix composite material
Inventor: NAKAO YASUHIRO
IPC: B22D17/30
Filed: 1999-05-11
Abstract: PROBLEM TO BE SOLVED: To provide a method for lowering the cost of a product formed with a metallic matrix composite alloy. SOLUTION: In an injection-forming method of a metallic matrix composite material, with which molten metal in an injection cylinder 26 is filled into a cavity 22 through a gate 24, semi-solidified state Al alloy 40 and molten-state Al alloy matrix composite material 42 are filled into the injection cylinder 26 so that the Al alloy 40 positions on a piston 30 side and the Al alloy matrix composite material 42 positions on the gate 24 side, and the Al alloy matrix composite material 42 and the Al alloy 41 are injected into the cavity 22 in this order. Therefore, a product part in the formed product consisting of the metal matrix composite material and non-product part consisting of the metallic material can be constituted.