baber/WOPTO huggingface dataset:
Patent JP-H0212095-A (JP)
Title: Method for cleaning solvent
Inventor: OTSUKA KATSUYUKI
IPC: G21C19/46
Filed: 1988-06-30
Abstract: PURPOSE:To reduce the quantity of produced waste water so that the burden of waste water disposal can be reduced and safety against corrosion, fire, and explosion can be improved by separating the waste water into a condensate and residues of TBP (tri-n-butyl phosphate), etc., by using a freeze vacuum drying method. CONSTITUTION:A coolant 3 and heating medium 4 are supplied to and discharged from a freeze dryer 1 and the dryer 1 freezes and dries a solvent 2 by cooling and sublimation. The material sublimated at the dryer 1 is supplied to a condenser 5. A coolant 7 is supplied to and discharged from the condenser 5 and, at the same time, the condenser 5 is evacuated by a vacuum pump 6. A condensate is reserved in a condensate receiving tank 8 where the condensate is separated into an organic phase 9 and aqueous phase 10 by a difference in specific gravity and n-dodecane, etc., 11 and water, nitric acid, etc., 12 are respectively extracted for circulation from the phases 9 and 10. A waste nitric acid solution 14 containing non-evaporating TBP 13 and nuclear fuel materials and fission products is taken out at the dryer 1 and the TBP 13 is separated for reutilization. The waste nitric acid solution 14 is led to a disposing system.
Patent JP-H0329408-A (JP)
Title: Bistable circuit
Inventor: NIRATSUKA KIMITOSHI
IPC: H03K3/037
Filed: 1989-06-26
Abstract: PURPOSE:To improve the interface performance by adopting the constitution such that a preset stable state in two stable states is selected at application of power and a threshold level is made dependent on a reference voltage source source as to make the threshold level nearly constant against the fluctuation of a power voltage. CONSTITUTION:The base of only a transistor(TR) Q2 in TRs Q1, Q2 is biased by a reference voltage from a reference voltage source 15. Then a signal based on the result of comparison of each base input voltage of the TRs Q1,Q2 is obtained from an output terminal 16, the threshold level is a reference voltage VREF and independently of a power voltage Vcc. When the voltage Vcc is largely fluctuated, the reference voltage VREF is fluctuated accordingly, but the fluctuation is very slight because of the constitution of constant voltage circuit of the reference voltage source 15. Thus, the threshold level determined by the reference voltage VREF is made stable and the interface performance is improved.
Patent JP-S649849-A (JP)
Title: Production of superconducting material
Inventor: YOSHIOKA NOBUYUKI
IPC: H01L39/12
Filed: 1987-06-30
Abstract: PURPOSE:To obtain a superconducting material turning into superconductive state at >=77 deg.K, by prebaking and pulverizing a powdery mixture of two components among three specific kinds of element components, mixing the obtained powder with the remaining component and forming and baking the obtained mixed powder. CONSTITUTION:The objective superconducting material is produced by (1) prebaking a powdery mixture composed mainly of two components among the following three components consisting of (A1) the 1st component composed of one or more elements selected from Y, Er, Sc, La, Nd, Sm, Eu, Gd, Dy, Ho, Tm, Yb and Lu, (A2) the 2nd component composed of one or more elements selected from Ba, Ca and Sr and a (A3) the 3rd component composed of Cu and one or more elements selected from Zn, Ni, Co, Fe, Pd, Ag and Cd, at a temperature lower than the baking temperature, (2) pulverizing the prebaked mixture, (3) mixing with powder composed mainly of the remaining component, (4) forming the obtained mixture and (5) baking the molded article in an oxidative atmosphere at 950-1,200 deg.C in such a manner as to form a sintered material having K2NiF4 structure including monoclinic crystal and composed of the components A1, A2 and A3 of formulas and oxygen component.
Patent JP-H05335408-A (JP)
Title: Forming method of element isolation region
Inventor: YAMADA MAKOTO
IPC: H01L21/322
Filed: 1992-05-29
Abstract: PURPOSE:To prevent an element formed on a semiconductor substrate from affected by crystal defect, by capturing crystal defect to be generated in the semiconductor substrate in the vicinity of edge of an LOCOS oxide film formed by an LOCOS method, in an impurity diffusion region. CONSTITUTION:In a first process, an insulating layer region 12 is formed on the upper layer of a semiconductor substrate 11 by an LOCOS method. In a second process, the insulating layer region 12 is eliminated, and a recessed part 13 is formed on the upper layer of the semiconductor substrate 11. In a third process, impurities 15 is introduced into the recessed part 13 and the upper layer of the semiconductor substrate 11 around the recessed part 13. In a fourth process, an element isolation region 17 is formed on the recessed part 13. In a fifth process, an impurity diffusion layer 18 is formed in the semiconductor substrate 11 around the recessed part 13, by annealing the semiconductor substrate 11. Thereby crystal defect is captured by the impurity diffusion region 18.
Patent JP-H0452307-A (JP)
Title: Floor mat for artificial skiing ground
Inventor: IMAGAWA KENZO
IPC: E01C13/12
Filed: 1990-06-21
Abstract: PURPOSE:To prevent the occurrence of a snowslide by forming plural drain holes at given intervals on a base spreaded on a slope and plural projections at given intervals on the lower surface of the base, and inclining artificial lawns in one direction to be plantedly provided on the upper surface of the base. CONSTITUTION:Plural drain holes 3, having an inner diameter of about 10mm, are formed at given intervals on a base 2 composed of resin such as polyurethane foam etc. Plural projections 4, having a height of about 5mm, are formed at about 20mm intervals on the lower surface of the base 2. Artificial lawns 5 are inclined about 10-30 deg. in one direction to be plantedly provided on the upper surface of the base 2. Then the base 2 is fixed with adhesive, etc., so that the artificial lawns 5 can face the top side of an inclined floor 1. This can surely prevent the sliding of a snow layer on the inclined floor.
Patent JP-2000352525-A (JP)
Title: Encoder
Inventor: SAWADA YASUSHI
IPC: G01D5/38
Filed: 1999-06-10
Abstract: PROBLEM TO BE SOLVED: To constitute a signal called a Z signal which provides a measurement reference value and which has not been implemented before or signals for detecting an optical system for measuring the number of revolutions and an optical system to form light called A phase and B phase for detecting a travelling or rotating direction in one micro encoder to be incorporated in a compact motor and a robot arm and used. SOLUTION: By providing one pattern for generating a Z signal at a location corresponding to a reference location within the range of extent of a light beam with which the surface of a scale 9 to form A-phase and B-phase light is irradiated in the vicinity of a periodic pattern on the scale 9, three signals of A phase, B phase and the Z signal are obtained by one beam. The light beam with which the scale 9 is irradiated is inclined with respect to the surface of the scale 9 for performing this measurement.
Patent JP-S648565-A (JP)
Title: Magnetic disk device
Inventor: YADA HIROAKI
IPC: G11B5/596
Filed: 1987-06-30
Abstract: PURPOSE:To improve the accuracy of position detection by comparing an output signal with servo information obtained from a couple of magnetic heads of position sense heads and using an output signal obtained from one magnetic head from the result of comparison so as to detect an identification signal. CONSTITUTION:Output signals SA, SB obtained from a couple of magnetic heads 3A, 3B of the position sensing head 3 are compared and the output signal SA or SB obtained from the magnetic head 3A or 3B is subject to identification signal detection from the result of comparison SCF. Thus, even when the position sense head 3 is not on-track correctly, one magnetic head 3A or 3B is on-track so as to detect the identification signal correctly. Thus, the accuracy of position detection is improved with simple constitution.
Patent JP-H0252219-A (JP)
Title: Turning rate indicator of compass for ship
Inventor: KURISU JIEI BOORUDOUIN
IPC: G01C19/00
Filed: 1989-06-26
Abstract: PURPOSE: To carry out quantified visual turning rate display by operating a series of discrete visual display apparatuses based on the extent and the direction of the turning. CONSTITUTION: A detecting means detects the increase of alteration of azimuth data and a counting means counts the increase for a prescribed period corresponding to the increase and generates a turning rate count signal. Responding to the count signal, a logic means starts display apparatuses and gives discrete display of discrete increases of the turning rate. The discrete visual display apparatuses respective discrete increases of the turning rate, respectively. That is, a turning rate from zero degree to 15 degrees for every second is given by utilizing 15 LEDs and the clockwise turning direction or the counterclockwise turning direction is displayed. In other words, when a ship starts turning in clockwise direction, at first LED1 is turned on and so is LED2 successively, and all LEDs until the final turning rate is shown are successively turned on.  When the ship again takes a straight nautical route, the LED which is lighted at the uppermost position is extinguished at first and so are other LEDs one by one and at the time when the turning is finally completed, all LEDs are extinguished.
Patent JP-S5586771-A (JP)
Title: Structure of electro-magnet for wire type dot printer printing head
Inventor: GOMI YOSHIFUMI
IPC: B41J2/275
Filed: 1978-12-23
Abstract: PURPOSE:To realize an extremely small dot head of which windings and printing head are made as small as possible by displacing a central line of a plunger to be retracted to an end surface of winding core toward a fulcrum point of crapper from a center line of the winding core. CONSTITUTION:Both a center line a of the winding core 1a and a center line b of a plunger 2 retracted against an end surface of the core 1a when a driving coil 4 is energized in response to a printing instruction are set to be displaced by a distance d to a fulcrum point A of crapper positioned opposite to the winding 1a more than an extended plane of an end surface of the winding 1a into which a plunger 2 is inserted, and a clearance between the plunger 2 and the winding 1a is made such that a size e at the fulcrum point A is smaller than a size f.
Patent JP-S5787225-A (JP)
Title: Band pass filter for very high frequency
Inventor: MAKIMOTO MITSUO
IPC: H03H7/075
Filed: 1980-11-19
Abstract: PURPOSE:To improve the attenuation characteristic, by providing a branch circuit, which couples resonators in the first stage and the 2Nth stage (N is an integer >=3), in the BPF for extra-high frequency consisting of >=7 odd stages. CONSTITUTION:A branch circuit 618 is provided between coupling points 619 and 620 of resonators in the first and the sixth stages of a BPF for extra-high frequency of 7 stages consisting of resonators 603-609 and coupling circuits 610- 617 of the BPF. When the phase quantity in a prescribed frequency in the attenuation band of the branch circuit is so selected that the phase is opposite to that of the phase quantity of a main transmission line consisting of coupling circuits, an attenuation pole is generated in the frequency to improve the attenuation characteristic. Further, since the one-stage BPF is connected after branching and coupling to the main transmission line, the attenuation characteristic in frequencies higher or lower than the attenuation polar frequency is good.
Patent JP-H0330344-A (JP)
Title: Semiconductor device and its manufacture
Inventor: IKENOUE KAZUHISA
IPC: H01L21/60
Filed: 1989-06-28
Abstract: PURPOSE:To relieve the shock produced at the time of on-chip bonding of a semiconductor device and, at the same time, to improve the yield and reliability of the device by respectively sticking shock absorbing bodies to chip-facing surfaces of each lead section connected to a bonding wire. CONSTITUTION:After a polyimide tape 11 is stuck to part of the rear of a boardlike lead frame material 1 as a shock absorbing body, a lead frame is obtained by punching the frame material 1 with the polyimide tape by pressing working. Then the lead frame 1 is spot-welded to another frame 12 with a chip 2 mounted on its head section and the leading end section of the lead section of the frame 1 and the pad 3 of the chip 2 are connected with each other by means of a bonding wire 4. After connection, the main body 5 of this device is sealed with a resin. Therefore, the shock received by a bonding section at the time of on-chip bonding can be relieves and, at the same time, the yield and reliability of this semiconductor device can be improved.
Patent JP-H11350979-A (JP)
Title: Method of preventing surge generation of jet engine
Inventor: HARADA MASAKI
IPC: H04M1/72403
Filed: 1998-06-11
Abstract: PROBLEM TO BE SOLVED: To provide the method of preventing the surge generation of the jet engine that can surely detect the timing of water washing before generation of the surge, by understanding on board the influence of salinity by the sea water absorption. SOLUTION: Beforehand, a relation 1 between a turbine inlet temperature T and an engine power P is measured beforehand on the surge line of the object engine. In addition, the correlation of the decrease amount of the surge margin and the decrease amount of the output when the sea water is absorbed is obtained by the test to set a T-P limit relation 2 at the operating limitation. The turbine inlet temperature T and the engine power P are measured on board. When the measured temperature T and the output P exceed the T-P limit relation 2, the signal of timing of water washing is output.
Patent JP-H06346532-A (JP)
Title: Mounting structure for partition
Inventor: HIKAWA TETSUO
IPC: E04B2/82
Filed: 1993-06-10
Abstract: PURPOSE:To easily mount the upper end of a partition to an optional position of a ceiling surface without leaving the trace of a fixing screw. CONSTITUTION:A fixture 10 is arranged with a space 20 with the lower surface of a ceiling panel 6 through a support arm 14 having a locking part 19 to be locked to a ceiling finishing member 6 through a through-hole 6a provided on the ceiling finishing member 6. A partition rail 7 is fixed to the fixture 10 by a fixing screw 8, and the upper end part of a partition 1 is held by a ceiling skirting 5 mounted on the partition rail 7 by a mounting screw 21. Thus, the fixture 10 can be arranged in an optional position of the ceiling surface without using a fixing screw, and the ceiling skirting 5 for holding the upper end part of the partition 1 can be mounted through this fixture 10.
Patent JP-S6320166-A (JP)
Title: Power source for plasma arc
Inventor: KASHIMA TAKAYUKI
IPC: B23K9/06
Filed: 1986-07-14
Abstract: PURPOSE:To improve stability of a pilot arc and to reduce size and weight of the titled power source by controlling a pilot arc current having a function to open a pilot arc circuit which is shifted to a main arc current and the main arc current respectively by the constant current. CONSTITUTION:A pilot arc current detector 20 and a low resistance 24 are inserted into the pilot arc circuit and moreover, a detected signal from the detector 20 is compared to a set signal from a pilot arc current setter 21 with a comparison part 22 to control the pilot arc current by the constant current. At this time, both of the comparison parts 17 and 2 are in an operating state till the main arc current is detected by a relay driving circuit 19 and detected values from the detectors 15 and 20 are controlled so as not to exceed either of set values of the setters 16 and 21. The low resistance 24 is selected to a low-resistance value to an extent that it does not receive an electric shock even in case the generating voltage comes into contact with a nozzle 14 even when the maximum current is allowed to flow to the pilot arc circuit and useful for reducing the size and weight of the power source.
Patent JP-H0917158-A (JP)
Title: Disc apparatus
Inventor: IWABUCHI OSAMU
IPC: G11B19/02
Filed: 1995-06-29
Abstract: PURPOSE: To realize, with one optical pickup, a function whereby data can be continuously alternately read out from two discs rotating simultaneously. CONSTITUTION: A pickup-driving mechanism consisting of a driving motor 108, gears 19, 20 and a lead screw 17 is provided so that data-recorded faces of two discs 12, 12' having compressed data recorded therein and rotated by spindle motors 13, 13' can be accessed by one optical pickup 13. When the optical pickup 13 moves between the discs, data read out before the optical pickup moves are stored in semiconductor memories 27, 27', and compressed data are read out from the semiconductor memories 27, 27'. After the compression is freed, the data are A/D-converted and output from a speaker 30.
Patent JP-H1114639-A (JP)
Title: Proximity visual field microscope
Inventor: TANAKA YURIKO
IPC: G01N37/00
Filed: 1997-06-20
Abstract: PROBLEM TO BE SOLVED: To reduce background light with a simple optical system, achieve a reflectiontype lighting, prevent limitation in an observed object, and provide a proximity visual field microscope suited for industrialization by constituting a point light source at the tip of a probe. SOLUTION: A microscope has a light irradiation means 1 for making input beam with a central wavelength of λ irradiate an observed object, a probe 91, a light wavelength conversion means 100 that is provided on a part being the closest to the observed object of the probe and emits light with a shorter wavelength than that of input light from the light application means 11, light detection means 51, 501, and 503 for detecting light from the light wavelength conversion means 100, and scanning means 81, 82, and 9 for changing the relative positional relationship with the above probe. Also, the distance between the object to be observed and the probe is equal to or less than a center wavelength λ.
Patent JP-S5955180-A (JP)
Inventor: OKAJIMA KUNIHIKO
IPC: B01D53/72
Filed: 1982-09-22
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-S5689310-A (JP)
Title: Bearing unit for backup roll of rolling mill
Inventor: TOMIOKA SHIYUNZOU
IPC: F16C13/00
Filed: 1979-12-19
Abstract: PURPOSE:To increase the strength of a roll neck and a load on the bearing, in order to improve the capacity of a rolling mill, by lining the neck of backup roll with a  liner provided in a specified thickness/diameter ratio, and by supporting this roll  neck with a bearing metal of specified bearing width/diameter ratio. CONSTITUTION:The shaft liner 10 of thickness/diameter ratio, given by t/D<0.03, in which (t) is the liner's thickness and D is the outer diameter of the shaft, is fixed by the shrink fit method to the roll neck 8 of the backup roll 2 for impressing the rolling load to a couple of work rolls. Hereby, the temperature of the liner 10 is almost uniformized from surface to backside, so that the liner 10 does not cause the creep even if the bearing metal causes a burn out or the like. Accordingly, the diameter of the roll neck 8 can be enlarged relatively. Besides, the bearing width of the bearing metal 3 supporting the roll neck 8 is selected from a range L<=L/D<=1.5 (in which L is the bearing width), in order to increase the bearing capacity of the bearing metal 3.
Patent JP-H1013256-A (JP)
Title: Radio transmitter
Inventor: SHOJI HITOSHI
IPC: H04B1/04
Filed: 1996-06-25
Abstract: PROBLEM TO BE SOLVED: To easily adjust a level and a frequency characteristic by reducing a circuit loss of a frequency characteristic compensation circuit section, independently of the length of the signal cable. SOLUTION: A mixer 5 converts a modulation signal 15 at an IF band, received via a signal cable 3 into a signal at an IF band whose frequency deviates by a frequency of a local oscillation signal 22. An IF filter 6 has a frequency characteristic, inverse to that of the signal cable 3, and a modulation signal 15 at an IF band is used to compensate a loss received from the signal cable 3 with a different length and a change in the frequency characteristic. An APC voltage-generating circuit 9 generates a DC voltage, in response to a detected level of a modulation signal 18 at the IF band, to control a local oscillation circuit 4, and the frequency of a local oscillation signal 22 is changed with the level of the modulation signal at the IF band.  A mixer 11 receives a local oscillation signal 24 whose frequency changes with a change in the frequency of the local oscillation signal 22 from the local oscillation circuit 10, for providing an output of a modulation signal at an RF band.
Patent JP-2000351551-A (JP)
Title: Catch restoring method and catch restoring jig for hydraulic elevator
Inventor: SUZUKI ICHIRO
IPC: B66B5/24
Filed: 1999-06-10
Abstract: PROBLEM TO BE SOLVED: To facilitate the restoration when a cage of a hydraulic elevator is in the vicinity of the uppermost story and a catch mechanism as a safety device is operated. SOLUTION: When a catch mechanism is operated, plunger 6b is lowered by a predetermined stroke to loosen a main rope 4, a catch restoring jig 21 having a clearance escaping from a screw part of a shackle rod in the longitudinal direction is inserted between a set screw 8a of the shackle rod 8 and a fixed member 7, and then the plunger is lifted by a predetermined stroke. Consequently, even if a cage 1 is in the vicinity of the uppermost story, the cage 1 is lifted by a length of the catch restoring jig to return the catch mechanism.
Patent JP-S648469-A (JP)
Title: Bus acquisition system
Inventor: WATANABE TAKASHI
IPC: G06F13/362
Filed: 1987-07-01
Abstract: PURPOSE:To rapidly switch a bus by providing a system including devices to be plural bus masters in addition to a main CPU with a continuous mode deciding part in addition to a bus arbiter. CONSTITUTION:When the system includes the devices to be plural bus masters in addition to the main CPU, a bus acquisition system is constituted of adding the continuous mode deciding part 2 or the like to the ordinary bus arbiter 1 and an OR gate 25. The arbiter 1 is constituted of a priority control part 3 and a bus available signal BSAV sending part 4. The continuous mode deciding part 2 is constituted of a continuous mode detecting part 5, a BSAV detecting part 6. If another request signal BSRQ 2 is inputted when a BSAV 1, e.g., is outputted, the detecting part 5 detects the input. When the BSAV 1 is decayed, the detecting part 6 detects the state and priority control is executed so that the bus master is switched by one clock. Consequently, the waiting time is shortened and rapid switching can be attained.
Patent JP-H1131493-A (JP)
Title: Secondary battery and manufacture thereof
Inventor: ARAI KUNIO
IPC: H01M2/18
Filed: 1997-06-20
Abstract: PROBLEM TO BE SOLVED: To prevent a battery from being damaged, and to improve the extraction effect of the plasticizer by extracting the plasticizer from a film, which is formed of the mixture of a polymer material for separator and the plasticizer, with carbon dioxide of a liquid area. SOLUTION: A plasticizer, which is included in a separator for battery, especially, for no-aqueous electrolyte battery, is extracted for elimination by usign carbon dioxide of a liquid area. For example, di-butylphthalate as a plasticizer is extracted from a separator formed of a composition, which is composed of a copolymer of vinylidene fluoride and hexafluoropropylene and di- butylphthalate as a plasticizer, by using carbon dioxide of a liquid area. With this elimination, capacity of the separator in the fine hole range is increased, and existence of the fine holes having a diameter at about 0.15-1 μm is increased so as to improve the battery performance, and use of a low-pressure device is thereby enabled so as to lower the cost.