baber/WOPTO huggingface dataset:
Patent JP-H06331070-A (JP)
Title: Oil well pipe threaded joint
Inventor: ATSUMI TAKUYA
IPC: F16L15/04
Filed: 1993-05-20
Abstract: PURPOSE:To attain repeated use by increasing thread groove depth of an external thread in a pipe joint end part nearest to a metal seal part and in a screw part position most distant from the metal seal part, so as to improve seizure resistance, in a threaded joint formed by providing the metal seal part and a screw part continued to this metal seal part. CONSTITUTION:In an oil well pipe joint for connecting adjacent steel pipes 1, 1 by a coupling 2, each steel pipe 1 has a taper, where its connection point end side periphery is formed into a small diameter toward the point end, to provide an external thread part 3 of engraving an external thread, and a seal part 5 connected to the external thread part 3 is formed in the point end part. In the coupling 2, an internal thread part 4 screwable to the external thread part 3 of the steel pipe 1 is formed in the internal peripheral surface, and also forming a seal part 6 engageable with the seal part 5 of the steel pipe 1, to constitute a metal seal part 7 of both the seal parts 5, 6. Here is increased thread groove depth of an external thread in a pipe point end part side nearest to the metal seal part 7 and in a screw part position most distant from the metal seal part, to improve seizure resistance.
Patent JP-H10308118-A (JP)
Title: Conductive paste, ceramic structure using the same and manufacture of the structure
Inventor: SANO TATSUJI
IPC: H05K1/09
Filed: 1997-05-08
Abstract: PROBLEM TO BE SOLVED: To provide ceramic structures such as an inductor, a capacitor, a resonator, and a circuit wiring board which are integrated by baking a conductor and a ceramic simultaneously, especially a conductive paste, ceramic structures and their manufacture to suppress generation of cavities and cracks of an internal conductor during baking. SOLUTION: In a conductive paste which is made by dispersing silver or power including silver as a principal ingredient and sintering control agent in an organic vehicle, the average particle diameter of silver or powder including silver as a principal ingredient is set to be 1.1 μm-13 μm and its standard deviation is set to be 30% or less of the average particle diameter. The content of particles with diameter less than 0.7 μm, with this average particle diameter, is less than 20%. Furthermore, ceramic structures are obtained by baking the conductive paste and the ceramic material simultaneously. Especially, the effect is remarkable when the ceramic material is a lead based perovskite type dielectric substance.
Patent JP-S62277361-A (JP)
Inventor: KUROODO RANBEERU
IPC: C07D213/84
Filed: 1987-05-15
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-S6012335-A (JP)
Title: Front drive stopping device of agricultural tractor
Inventor: MUKAI NAKASHIROU
IPC: B62D9/00
Filed: 1983-06-30
Abstract: PURPOSE:To decrease the turning radius and reduce the reverse turning of a steering handle on a farm by cutting off the front operation system on the inner turning side and braking a differential side gear when the steering angle of the front wheel exceeds a fixed range. CONSTITUTION:When a machine body 1 is to be quickly turned, the steered angle of the left side front wheel case 29 exceeds a predetermined angle, a protruded section 30 sways an operation arm 26 counter-clockwise, the coupling between a spline boss 20 and a shaft section 10 is released by sliding a cam boss 17 in the locked state to the outer end of the shaft section 10 of the differential side gear 6, while the coupling projection 24 of a shifter 25 being engaged with the coupling hole 16 of a flange section 15 of the cam boss 17, thereby the left front wheel is made freely movable, and the rotation speed of the right front wheel is doubled and the machine body 1 is quickly turned to the left.
Patent JP-S599549-A (JP)
Title: Measurement of gas concentration
Inventor: SHIYOUNO KOUSUKE
IPC: G01N33/00
Filed: 1982-07-08
Abstract: PURPOSE:To achieve the measurement of gas concentration in a handy, safe and accurate manner by mixing a dry gas other than a specified gas at a certain rate to maintain the water in a gas to be measured within the applicable range of a gas analyzer when the concentration of the specified gas is measured in the gas to be measured containing water. CONSTITUTION:For example, in the measurement of H2O2 and the like in a gas of a high temperature and high humidity for example in a gas within a vessel housed in a nuclear reactor, a dry gas such as N2 is mixed with a sample gas sent via a needle valve 14 and a flowmeter 15 through a pipe 17 passing through a pressure regulation valve 16 and the mixture is sent to an oxygen analyzer 10 and a hydrogen analyzer 11 through a flow control valve 7 and a flowmeter 8 to measure concentrations of the gases. An excessive gas above the required level for analysis flows to the flow control valve 13. Thus, in stead of the use of a dehumidifier of the sample gas, a certain amount of the dry gas is added within the applicable range of the analyzers 10 and 11 whereby the measurement can be made possible accurately with a simple equipment without danger of making H2 and O2 an explosive gas respectively.
Patent JP-S62277151-A (JP)
Title: Production of hydrogen generating powdery photocatalyst
Inventor: OOSAWA YOSHINAO
IPC: B01J35/02
Filed: 1986-05-23
Abstract: PURPOSE:To obtain the title highly active catalyst by adding an aq. soln. of cadmium sulfide powder and an alkali(earth) metal to an aq. soln. of a platinum or palladium complex to alkalinize the soln., evaporating the whole material to dryness, and then heating the obtained material in an inert gas. CONSTITUTION:Cadmium sulfide powder is added to the aq. soln. of a platinum or palladium complex. The hydroxide of an alkali metal or an alkaline-earth metal is then added to the mixture to alkalinize the mixture. The mixture of the cadmium sulfide, metallic complex, and water are evaporated to dryness while sufficiently agitating the mixture, and the obtained material is crushed by a mortar. The material is charged in a quartz boat, and heated preferably at 150-400 deg.C for 1-10hr in an inert gas atmosphere to obtain the cadimium sulfide powdery photocatalyst deposited with platinum or palladium. The catalyst exhibits high activity in the generation of hydrogen from an aq. sodium sulfide soln. under the radiation of light.
Patent JP-H11310340-A (JP)
Title: Sheet feeder and image processor
Inventor: HOSHII OSAMU
IPC: B41J29/17
Filed: 1998-04-28
Abstract: PROBLEM TO BE SOLVED: To prevent the occurrence of jamming during feeding even when the limited durability of a device causes a reduction in surface friction resistance between a feed rotor and a separation rotor. SOLUTION: A sheet feeder for separating and feeding sheets one by one is provided with a feed rotor 3 for feeding sheets, a separation rotor 4 rotated forward/backward to separate the sheets one by one, and cleaning means 17 and 18 for removing depositions on the surfaces of the feed rotor 3 and the separation rotor 4. The cleaning means 17 and 18 are constituted to apply higher deposition removing capability to the feed rotor 3 than to the separation rotor 4.
Patent JP-H09307457-A (JP)
Title: Parallel/serial conversion circuit
Inventor: YANO MOTOYASU
IPC: H03M9/00
Filed: 1996-05-14
Abstract: PROBLEM TO BE SOLVED: To halve a frequency of a basic clock pulse to be applied for drive at the same data rate by detecting a rising edge of the basic clock pulse and a rising edge of an inverted pulse respectively. SOLUTION: From a parallel data input terminal 1, n-bit data are received at a data rate fbps. A circuit 7 generates an in-phase byte clock pulse Byte Clock 0 and an inverted byte clock pulse Byte Clock 1 from the basic clock pulse of a frequency f/2Hz and gives them to byte clock pulse input terminals 2a, 2b. An OR circuit 9 receives outputs (1), (2) of edge detection circuits 8a, 8b and its output (3) acts like a byte clock pulse of a frequency fHz. An input section 3 is driven by the byte clock pulse (3), a multiplexer 4 is driven by a PLL synthesizer 5 and provides an output of serial data at a data rate of n.fbps.
Patent JP-2000311974-A (JP)
Title: Electronic device
Inventor: TANAKA AKIO
IPC: F25B21/02
Filed: 1999-04-27
Abstract: PROBLEM TO BE SOLVED: To obtain an electronic device which is formed of functional material, lessened in size, power consumption, manufacturing cost, and noise, and enhanced in sensitivity, operation speed, and service life. SOLUTION: An electronic device is equipped with a heat isolating structure 104 formed on a board 101 through the intermediary of a cavity 108, a thermoelectric conversion element 106, which converts heat into electric signals and is provided in the heat isolating structure 104, an electrothermic conversion element 105 which converts electric signals into heat and is provided in the heat isolating structure 104, a functional material 107 which varies in physical properties at a specific temperature and is provided in the heat isolating structure 104, and a circuit 102 which receives signals outputted from the thermoelectric conversion element 106 for controlling the electrothermic element 105 and is provided inside the board 101.
Patent JP-H05312226-A (JP)
Title: Hydraulic power transmission joint
Inventor: SUZUKI SATORU
IPC: F16D31/02
Filed: 1992-05-13
Abstract: PURPOSE:To obtain required torque with small electric current, to reduce size and weight and to improve control performance in a hydraulic power transmission joint used for driving force distribution of a vehicle. CONSTITUTION:This joint is positioned in capable of a predetermined angular rotation between a member fixed coaxially and integrally with a first rotation shaft 3 and provided with a control valve for controlling a fluid resistance of discharged oil and a member coaxially arranged in a joint and provided with a control valve. And this joint is provided with an actuator 16 having an orifice 17 which is made not to communicate to a high pressure chamber 12 according to the rotation angle and an opened hole which is capable of communication, and a spring member 7 for energizing the actuator 16 to return it to an original position, magnetic frames 19 and 21 fixed coaxially with the joint to the outside member and coiled around a solenoid coil 22 to hold it in the non-contact state, and a torque generating member for generating friction torque between the actuator 16 and a second rotation shaft corresponding to the electricity to the solenoid coil 22.
Patent JP-H06329293-A (JP)
Title: Separation device for paper sheet
Inventor: FUJIWARA TAKASHI
IPC: B65H3/52
Filed: 1993-05-21
Abstract: PURPOSE:To prevent a large number of forms from being bitten in between a separation roller and a gate roller, thereby secure stable separation performance, and concurrently make it easy to take out a form out of a hopper by letting the movement or displacement of the gate roller in stroke be produced within a specified number of papers handled. CONSTITUTION:A form 10 within a hopper 11 is carried in between a separation roller 1 and a gate roller 2 with a pick-up roller 3 rotated. In this case, when a great number of forms 10 intend to come in between the separation roller 1 and the gate roller 2, the gate roller intends to be moved down. However Since a gate roller shaft 9 is limited in the amount of lowering by a stopper 8, the gate roller can not be moved down beyond a specified amount. Besides, in this case, the amount of lowering of the gate roller 2 is set in such a way that a gap between the separation roller 1 and the gate roller 2 is substantially less than the thickness of two forms. Only the form at the uppermost position is frictionally separated by the separation roller 1 so a to be forwarded to the following process.
Patent JP-S6013021-A (JP)
Title: Production of steel material having high yield point
Inventor: IMAI SHIROU
IPC: C22C38/14
Filed: 1983-06-30
Abstract: PURPOSE:To produce a steel material having a high yield point while maintaining excellent strength, toughness and weldability by hot rolling a steel plate to a thick plate then subjecting the steel plate to controlled cooling under specific conditions. CONSTITUTION:A steel material contg. 0.03-0.30wt% C, <0.6wt% Si, 0.2- 2.0wt% Mn and 0.005-0.10wt% sol.Al and satisfying the formula ( I ) (in which Vc is a cooling rate,  deg.C/sec) or further the steel material incorporated further with Nb, V and Ti alone or in combination and composed to satisfy the formula (II) is hot rolled at >=30% in the unrecrystallization region and is thus worked to a thick plate material. The plate material is subjected to controlled cooling from the temp. higher than the Ar3 transformation point down to a temp. range of 500-250 deg.C at a cooling rate Vc of >=9 deg.C/sec. The thick steel plate material having >=53kg/mm.<2> tensile strength and >=40kg/mm.<2> yield point is obtd.
Patent JP-H11311727-A (JP)
Title: Optical fiber unit and optical fiber cable
Inventor: KOBAYASHI KAZUNAGA
IPC: G02B6/44
Filed: 1998-04-28
Abstract: PROBLEM TO BE SOLVED: To prevent light loss due to the snaking or buckling of an optical fiber unit by improving the slidability between the optical fiber unit and the storage part wall of an optical fiber cable by providing a slide layer on a coating layer. SOLUTION: The optical fiber unit 15 is obtained by providing a stack of three ribbons of coated optical fibers 3 with a coating layer 14 made of ultraviolet-ray setting resin, etc., and further providing the slide layer 12 thereupon. This slide layer 12 has a smaller coefficient of friction to the storage part wall of the slot of the tube made of aluminum, the slot rod made of polyethylene, etc., of the optical fiber cable than that of a conventional coating layer 14 made of ultraviolet-ray setting resin, etc. Then the slide layer 12 is formed by extrusion-coating ultraviolet-ray setting resin to which a lubricant is added onto the coating layer 14 of the optical fiber unit 15, and setting the resin. Or, two layers are collectively coated and set together with the resin used for the coating layer 14.
Patent JP-S611485-A (JP)
Title: Electron beam welding device
Inventor: MANABE MASARU
IPC: H01J37/18
Filed: 1984-06-13
Abstract: PURPOSE:To reduce the time for supplying and discharging air to and from a welding chamber and to improve the efficiency of a device by connecting a solenoid valve, filter and compressed air source to the welding chamber. CONSTITUTION:Dry air from which moisture, oil, etc. are removed by the filter 6 is supplied through the solenoid valve 5 into the welding chamber 1. There is therefore no need to extend the time required for discharging the air from the welding chamber in the stage of supplying the air thereto. The air controlled always to the specified pressure is supplied from the compressed air source 7 to the inside of the chamber 1 and therefore the inside of the chamber 1 is supplied with the air up to the atm. pressure in a short period.
Patent JP-S60263960-A (JP)
Title: Both-surface image forming device
Inventor: TAKAOKA SATOSHI
IPC: G03G21/00
Filed: 1984-06-13
Abstract: PURPOSE:To reduce the trouble and time of both-surface image formation by forming a reverse-surface image on the top surface of a deficient form without operating an automatic original information supply means in case a paper jam occurs during reverse-surface image formation and a defective image formed body is removed, and then operating the supply means. CONSTITUTION:The automatic original information supply means D to the both- surface image forming device C, a means E which inverts image formed bodies A and B, a detecting means F which detects a paper jam during reverse-surface image formation and stops the operation of the device C, a detecting means G for the number of deficient sheets in case of paper jamming, and a storage means H for the number of deficient sheets are provided. A control means I is provided to transmit control signals; reverse-surface images as many as deficient sheets are formed on the surface of a form B where no top-surface image is formed with the output of the means G after the device C which is stopped temporarily operates again to complete reverse-surface image formation to a normally image formed body A, then the means D is put in operation to the top- surface image on the reverse surface of the deficient reverse-surface image formed body B.
Patent JP-S62276621-A (JP)
Title: Magnetic disk device
Inventor: MAEDA YOSHINOBU
IPC: G11B20/10
Filed: 1986-05-24
Abstract: PURPOSE:To prevent the titled device from the reduction of processing efficiency by providing the device with a status transition suppressing circuit to suppress status change generated every execution of reserving or releasing operation and to omit status transition processing. CONSTITUTION:A disk cross call system including magnetic disk control devices 13, 14 is provided with processors 11, 12, a cross call control device 15 and a magnetic disk unit 16 and each of the control devices 13, 14 is constituted of a control circuit 2, a memory 3, a status transition suppressing circuit 5, and so on. The circuit 5 reports the status of the unit 16 at the time of reserving operation or operation enabled status at the time of releasing operation to suppress NOT READY at the time of releasing operation. Consequently, even if the unit 16 repeats the reserving/releasing operation, the unit 16 is always kept at the READY state and no status transition is generated.
Patent JP-S60263845-A (JP)
Title: Gas detecting element and its production
Inventor: OKAYAMA YOSHIAKI
IPC: G01N27/12
Filed: 1984-06-13
Abstract: PURPOSE:To detect easily a special gas with high accuracy by treating a mixture composed of the oxides of tin, platinum and antimony in a gaseous silane atmosphere and using such mixture for a detecting element to detect the special gas which has an easy tendency to spontaneous ignition in air. CONSTITUTION:The mixture composed of the oxides of tin, platinum and antimony is manufactured, for example, in the following manner. The mixture composed of stannic oxide, chloroplatinic acid and antimony trioxide is first calcined at about 600-850 deg.C in the atm. The compsn. ratio is preferably made antimony/ tin=1-8mol%, platinum/tin=1-8mol%. The mixture composed of the resulting oxides is treated at about 200-400 deg.C in an atmosphere contg. 25-400ppm gaseous silane, for example, monosilane. The mixture is further subjected to an aging treatment and is made into a semiconductor consisting of the mixture composed of the metallic oxides. Such semiconductor is used for the detecting element. The detection of monosilane, dichlorosilane, etc. having the easy tendency to spontaneous ignition in air with high sensitivity by such detecting element is thus made possible.
Patent JP-H02299691-A (JP)
Title: Brake device for laundry machine having spin-drying function
Inventor: KOSAKA YOSHIO
IPC: D06F37/40
Filed: 1989-05-12
Abstract: PURPOSE:To decrease braking sound and to obtain prescribed braking force after use for long time by providing a lubricant storage part at the frictional sliding contact face of a brake shoe. CONSTITUTION:A brake shoe 34 brought into frictional and sliding contact with a brake drum 18 is attached to the inner peripheral face of a brake band 31. On the frictional and sliding contact face of the brake shoe 34, a lubricant storage part, for example, two grooves 34a, 34a are placed at the end part of the frictional and sliding contact part of the brake shoe 34 and the brake drum 18 at the movable end 31a side of the brake band 31. Each groove 34a is formed substantially in the shape of V which extends to the entire width of the brake shoe 34. Thus, braking sound can be decreased. Since the groove 34a is formed substantially in the shape of V, the amount of fed lubricant is reduced as the abrasion of the brake shoe 34 is advanced. Variation in frictional resistance and variation in braking force influenced thereby can be decreased.
Patent JP-H06101230-A (JP)
Title: Method and device for measuring accuracy of pitching of pile
Inventor: DEGUCHI TANEOMI
IPC: G01C15/00
Filed: 1991-05-24
Abstract: PURPOSE:To obtain stabilized and high degree of accuracy of excavation and, at the same time, to put on speed of excavation construction. CONSTITUTION:Visural lines of CCD camera A and B of one level P1 and CCD camerae C and D of the other level P2 are set to contacts Q1, R1 and Q3, R3 on a casing tube 3a and are initially set to angles theta1, theta2, and theta3, theta4 against a reference line S. After that, in the CCD camerae A, B and CCD camerae C, D, positions of contacts Q1, R1 and Q3, R3 on the casing tube 3a coming within the field of vision are measured at a time, and excavation is started to measure positions of contacts Q2, R2 and Q4, R4 on a casing tube 3b moving to a different position at a time at specific timing. Based on those measured values, displacement Q1Q2, R1R2, Q3Q4 and R3R4 are calculated, and slippage between the center axes of the casing tubes is calculated.
Patent JP-S5644730-A (JP)
Title: Pressure storing alloy
Inventor: SHINOHARA TAKESHI
IPC: G01L1/12
Filed: 1979-09-20
Abstract: PURPOSE: To provide a material capable of storing pressure on the basis of the relation between the conversion of the atomic arrangement due to pressurization and a change in the magnetic characteristics by pulverizing Heusler's alloy consisting of Pd, Mn and Sn followed by annealing.  
     CONSTITUTION: An ingot of Heusler's alloy such as Pd 2 MnSn is made using high purity Pd, Mn and Sn as starting materials. This ingot is pulverized to about 300 mesh and annealed in a vacuum or other atmosphere to obtain a pressure storing element material. After pressurizing this alloy powder in a metal mold, the external magnetic field is measured. Since interrelation exists between this pressure and the intensity of the magnetic field, the extent of the pressurizing force can be obtd. from the intensity of the magnetization measured, so application as a pressure storing element material is enabled. This alloy applies the theory that the conversion of the atomic arrangement into irregular arrangement due to pressurization causes a change in the intensity of magnetization. The memory is erased by heat treating the alloy at 650°C since the irregular atomic arrangement is returned to the regular arrangement by heat treatment. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H11299006-A (JP)
Title: Creep run controller of hybrid vehicle
Inventor: TSUZUKI SHIGEO
IPC: B60L50/16
Filed: 1998-04-13
Abstract: PROBLEM TO BE SOLVED: To enable easy creep run of a hybrid vehicle, even if the operation state of an engine is stopped so as to make the re-start of the operation of the engine. SOLUTION: A controller which controls the creep run of a hybrid vehicle having an engine 1, a motor-generator 2 and a splitting mechanism 3, when the operation of the engine 1 is stopped has a creep control deciding means. When the creep run in an engine stop state is decided by the creep control deciding means, the controller makes the motor-generator 2 output a certain torque to generate creep torque on the output side of the splitting mechanism 3 via the splitting mechanism 3, while the cranking torque and inertia torque of the engine 1 are used as counter forces.