baber/WOPTO huggingface dataset:
Patent JP-H0947028-A (JP)
Title: Dead time compensator, dead time compensation method, motor drive and motor driving method
Inventor: ISHIKAWA MASAMI
IPC: H02P27/06
Filed: 1995-08-02
Abstract: PROBLEM TO BE SOLVED: To eliminate distortion from current waveform and to prevent fluctuation in the output torque from a motor. SOLUTION: The dead time compensator comprises a current command value generation means 80, means 83 for determining the polarity of current command value, and means 81 for performing dead time compensation based on the output pulse width of a PWM signal generated based on the current command value, the polarity of current command value, a dead time. When a current command value is generated from the current command value generation means 80, a PWM signal is generated and the polarity of current command value is determined. The dead time compensation means 81 then performs dead time compensation based on the output pulse width of PWM signal, the polarity of current command value, and the dead time.
Patent JP-H0899032-A (JP)
Title: Blended liquid takeout mechanism for agitator using stirring plate
Inventor: YOSHIDA KIYOSHI
IPC: B01F29/86
Filed: 1995-08-02
Abstract: PURPOSE: To take out efficiently a processed liquid which has finished stirring and blending by inserting a stirring plate into a container to be moved relatively and forming a blended liquid passage in the stirring plate. CONSTITUTION: A stirring plate 11 is formed by attaching blades 112, 112 to the end of a straight pipe part 111; a blended liquid passage F is composed of the hollow part of the straight pipe 111 and the hollow part of a support member 12 consisting of a carry-out pipe. A suction port 11a is opened at a place where the lower end of the stirring plate 11 approaches the bottom of a container 13. The container 13 is fixed with its lower part engaged with a turn table 144 installed in a frame 14. The container 13 is rotated relatively to the stirring plate 11 by rotating the turn table 144 reciprocatingly while liquid in the container 13 being stirred. After the finish of stirring and blending, a processed liquid is discharged to a pipe 142 through the passage F to be sent to a specified place.
Patent JP-H0248896-A (JP)
Title: Serial information input and output device for numerical controller and input/output equipment
Inventor: TSUBOI SHUNJI
IPC: H04Q9/02
Filed: 1988-08-10
Abstract: PURPOSE:To reduce the size of constitution by connecting plural input and output devices in parallel with an interface cable and applying serial transmission reception to only a data to a cable selected by a switch circuit for each cable of an NC machine. CONSTITUTION:Plural I/O devices (2-1)-(2-3) are connected in parallel with the NC machine 1 by an interface (I/F) cable and data are sent/received between the machine 1 and the devices (2-1)-(2-3). The switching of analog switches (21-1)-(21-3) for driver/receiver for each I/F cable is controlled by an NC control circuit 5 and only the selected switch (21-1)-(21-3) is closed and the others are opened and only the selected I/F cable is connected to a serial I/F circuit 6 to attain the transmission reception of the serial data. Thus, the serial data input/output by the I/O devices connected in parallel is applied by one serial I/F circuit.
Patent JP-2000338508-A (JP)
Title: Method and device for production of liquid crystal panel
Inventor: TANAKA SAKAE
IPC: G02F1/1341
Filed: 1999-05-27
Abstract: PROBLEM TO BE SOLVED: To significantly shorten the production time by omitting the production processes and changing the order of the production processes in the production of a large-size liquid crystal display device, and to obtain a large-size liquid crystal display panel showing little variance in the quality and no irregular display state. SOLUTION: In the production process of a liquid crystal display device consisting of a pair of substrates at least one of which is transparent and a liquid crystal compsn. layer interposed between the substrates, after a liquid crystal is injected into a liquid crystal cell 8, the excess liquid crystal depositing on the injection port is removed by vacuum cleaning or N2 blow cleaning while the substrates are kept in the state as the liquid crystal is injected, namely, not inverted upside down. Then a tray preliminarily prepared by applying a sealing agent 34 on a quartz substrate 31 is pressed to the injection port and irradiated with UV rays at a time to harden the sealing agent. Thus, the period from completion of the injection of the liquid crystal into the all liquid crystal cells to the sealing of the cells is controlled to be the same.
Patent JP-H0929596-A (JP)
Title: Polisher for knife blade
Inventor: SHIRAI SHOJI
IPC: B24B3/38
Filed: 1995-07-10
Abstract: PROBLEM TO BE SOLVED: To precisely polish various knife blades having different cutting blades, on the surface of a grinding wheel by downward projecting the lower end of a height adjusting member retractably screwed onto a pedestal body. SOLUTION: In such a case that a cutting blade Sa of a knife S is polished at a polishing angle which is larger than a front end angle (a) of a pedestal body 1, the front end of a height adjusting bolt 4 is projected from a top surface 11 while the lower surface of the knife S is supported a linear front end contour line 11A and a dot-like height adjusting bolt 40, and the upper surface of the knife S is pressed by a fastening screw 3 so as to fix the knife S to the pedestal body 1. Accordingly, the cutting blade Sa of the knife S and a rotary roller 5 are made into contact with an upper grinding wheel surface T so that the cutting blade Sa is polished with a angle larger than the front end angle (a). Thereby it is possible to polish the knife so that this polishing angle is larger than the set front end angle (a) by about ten degrees.
Patent JP-H0935425-A (JP)
Title: Feed mechanism
Inventor: ITO YUKIO
IPC: G11B21/02
Filed: 1995-07-11
Abstract: PROBLEM TO BE SOLVED: To prevent a feed mechanism, e.g. an optical pickup, from entering into deadlock state. SOLUTION: A helical gear 10a meshes a rack formed integrally, at a operating section, with a helical gear 10b being transmitted with the driving power of a motor through a worm gear and transmits the driving power from the helical gear 10b. The helical gears 10a, 10b are then brought into press contact with each other by the magnetic force generated from a coil spring 13 through press contact members 11, 12 thus transmitting the driving power. At the time of overload exceeding a specified press contact force, the helical gears 10a, 10b are idled thus preventing a feed mechanism from entering into deadlock state.
Patent JP-S6177323-A (JP)
Title: Semiconductor diffusion source
Inventor: KAWAI TETSUO
IPC: C04B35/583
Filed: 1984-09-21
Abstract: PURPOSE:To extremely reduce the variability of resistivity of diffused Si in stability without warps or cracks even in use at high temperature by adding Si3N4 at 5-40% in weight with the main component of boron nitride. CONSTITUTION:The BN sintered body is produced by hot press at a high temperature normally of 1,600-1,900 deg.C. Si3N4 is said to decompose on heating up to 1,800 deg.C in a vacuum. Decomposed Si is very active: when introduced with N2 gas, this element reacts with the nitrogen in BN or with N2 gas and thereat improves the density of the BN sintered body. An addition of Si3N4 at 5wt% or more makes the strength 3kg/mm<2> or more, which is regarded sufficient as the strength of the diffusion source. The strength increases with the increase in amount of Si3N4 addition; however, an excess of Si3N4 over 40wt% decreases the mechanic workability, and this decrease is not preferable for the diffusion source.
Patent JP-2001016981-A (JP)
Title: Nursery system for grafted plant
Inventor: KUROMITSU KIYOSHI
IPC: A01G9/24
Filed: 1999-07-12
Abstract: PROBLEM TO BE SOLVED: To provide the subject system designed to set up an air suction means in an air suction space so as to produce a specific pressure difference between the air suction space and a seedling housing space to enable the air flow rate inside a curing chamber to be uniformized without the need of any difficult control operation and without complicating the system itself. SOLUTION: This curing system 1 is so designed as to have a system structure and at least one air circuit which is formed inside the structure and furnished with a seedling housing space capable of housing a plurality of grafted nursery plants, an air blow space 50 adjacent to the upstream side of the seedling housing space 5, and an air suction space 6 adjacent to the downstream side of the seedling housing space 5; wherein the seedling housing space 5 and the air suction space 6 are divided through a partition with a porous member 7, an air suction means is set up in the air suction space 6 so as to produce a pressure difference of >=1 mmAq between the air suction space 6 and the seedling housing space 5 and circulatey air to a plurality of grafted nursery plants in the space 5 by air suction into the space 6 via the porous member 7 exclusively.
Patent JP-H10214-A (JP)
Title: Acoustic discrimination device
Inventor: TAKAHASHI KENJI
IPC: G10L17/26
Filed: 1996-07-08
Abstract: PROBLEM TO BE SOLVED: To assist a person who has difficulty in hearing in place of a guide dog for the deaf. SOLUTION: Wave analysis is performed by a sound analyzer on several kinds of sound, perception of which is necessary for daily life, such as the sound of door chime, opening/closing of a door, dial tone of a telephone, and fire alarm bell. With these spectra stored preliminality in a storing means 14, when a sound is newly generated, its spectrum is compared with the several kinds of stored spectrum by a discriminating means 17, so that it is discriminated if the sound generated requires any action. The generation of a sound that requires an action would be transmitted to the person having difficulty in heating through the sensibly vibration by a body sensory vibration means 15-20. Thus, a required action is urged correspondingly to the kind of sound by visibly notifying the person of the kind of sound with a display means 16.
Patent JP-H09137244-A (JP)
Title: Method for extruding aluminum alloy and aluminum alloy material having high strength and high toughness obtained by the method
Inventor: AZUMA KENJI
IPC: B21C23/00
Filed: 1996-07-08
Abstract: PROBLEM TO BE SOLVED: To produce an aluminum alloy material having a structure refined into the grain size of <=1 micron and balanced in strength and toughness on an exceedingly high level and to provide an extruding method capable of producing the material at a low cost. SOLUTION: This method is the one in which two extruding containers having the same cross section at the inside face or a container 1 and a die 2 are joined at a suitable angle of <180 deg., an lauminum alloy S is inserted into the container 1, and it is extruded toward the other container or die 2 by a ram 3 to apply shearing deformation in the side direction to the material. Preferably, this stage is executed for plural times, and large shearing deformation with the amt. of strain corresponding to the equivalent elongation of >=220%, preferably, >=10000% is applied in the extruding stage to refine the average grain size in the microstructure to >=1 micron, by which the high strength and high toughness material can be produced. The extruding stage is executed at less than the recrystallization temp. of the alloy to be used, preferably, at less than the recovering temp.
Patent JP-H0519552-A (JP)
Title: Image forming device
Inventor: KUBOTA TAKESHI
IPC: G06F1/16
Filed: 1991-07-15
Abstract: PURPOSE:To provide an image forming device where a process cartridge is surely electrically connected to a device main body and operability in attaching/ detaching the process cartridge is enhanced. CONSTITUTION:A vertical guiding groove 15a for vertically dropping the process cartridge T at the last stage of an action for inserting the cartridge 7 in the device main body 1 is formed, and a high voltage contact part 10 for electrically connecting the cartridge 7 to a high voltage power source circuit substrate 11 by interlocking with the dropping action of the cartridge 7 is proveded. Since the electric conduction of the cartridge 7 to the main body 1 is executed by the simple vertical downward movement(stroke) of the cartridge T, the cartridge 7 is surely electrically connected to the main body 1, and the operability in attaching/detaching the cartridge is enhanced.
Patent JP-H0946018-A (JP)
Title: Superposition connection structure of printed circuit board
Inventor: AOYAMA MANABU
IPC: H05K3/36
Filed: 1995-08-03
Abstract: PROBLEM TO BE SOLVED: To obtain a superposition connection structure of a printed circuit board of a simple structure, high operativity and a low cost which agrees with high density requirements regarding a structure for superposing and connecting a sub-printed circuit board in a main printed circuit board. SOLUTION: A cover 2 for protecting a sub-printed circuit board against external force, a support 3 for fixing a connector connection part and a support pin 4 for fixing it to a main printed circuit board are formed of resin integrally in a printed circuit board support body 1. A superposition connection structure of a printed circuit board of a simple structure, high operativity and a low cost which agrees with high density requirements is realized in this way.
Patent JP-H0645836-A (JP)
Title: Noise reducing device
Inventor: SAITO YUKIHISA
IPC: H03F1/00
Filed: 1992-07-24
Abstract: PURPOSE:To provide a noise decreasing device which can effectively decrease noise dispensing with any expensive high-performance A/D converter. CONSTITUTION:This device is provided with an absolute value circuit 2 to be supplied with a digital signal prepared by sampling an analog signal at a prescribed frequency and to obtain the absolute value of this digital signal, integration circuit 3 to integrate the output of the absolute value circuit 2, detection circuit 4 to detect that the output of the integration circuit 3 is lower than a prescribed signal level, and muting circuit 5 to mute the digital signal with the detected output of the detection circuit 4.
Patent JP-H0758843-A (JP)
Title: Private automatic exchange system
Inventor: HIRAO FUTOSHI
IPC: H04M3/22
Filed: 1993-08-10
Abstract: PURPOSE:To preserve a channel even when a telephone line is physically broken during holding and to eliminate the need for redialing after line restoration. CONSTITUTION:A communication control procedure execute section 41 of a digital telephone set interface 4A detects a communication error, a timer management section 45 measures an elapsed time after the communication error is detected, and when number of times of communication errors measured by a number of time measurement section 46 exceeds a preset number of times for a predetermined time, it is discriminated that the line between the private automatic exchange 1 and digital telephone sets 6A, 6B is physically broken. Then the line of a communication opposite party whose line is interrupted is connected to a message transmission section 7, the elapsed time after the connection is measured by the timer management section 45 and when the line is restored till a predetermined time, the channel state before the line fault state is recovered to control restart of speech. Furthermore, when the line is not restored till a predetermined time, as soon as the line is restored, it is reported to the communication opposite party by using a sound.
Patent JP-H0643482-A (JP)
Title: Space optical modulating element and its production
Inventor: AKIYAMA KOJI
IPC: G02F1/135
Filed: 1992-07-24
Abstract: PURPOSE:To provide the space optical modulating element with which reading out with a high sensitivity and high light intensity is possible and which is usable for a projection type display or photocomputation. CONSTITUTION:This space optical modulating element has the structure constituted by holding a liquid crystal layer 103 which is changed in transmission quantity of light by impression of an electric field thereto and an amorphous semiconductor layer 105 which consists essentially of silicon allowing the flow of the photocurrent having quantization efficiency exceeding 1 by two transparent photoconductive electrodes 102, 106 facing each other. Plural pieces of island- shaped reflection mirrors are formed at the boundary between this amorphous semiconductor layer 105 and the liquid crystal layer 103. The photoconductivity of the photoconductive layer on which the island-shaped reflection mirrors are not formed is smaller than the photoconductivity of the photoconductive layer on which the island-shaped reflection mirrors are formed.
Patent JP-H0246225-A (JP)
Title: Grain-releasing device in movable threshing machine
Inventor: AKIYAMA TAKAO
IPC: A01F12/46
Filed: 1988-08-08
Abstract: PURPOSE:To facilitate the confirmation and operation of a shutter by positioning the shutter-switching handle and viewing window of a grain-releasing section on the side of an operator. CONSTITUTION:When an operator works with a movable threshing machine, the operator stands on the rear side of a rice straw table 13. The operation feeds the sheaves of the rice straws into a threshing machine 3. The operator can confirm the inside of a grain-releasing section 7 from a transparent lid 11 and a viewing window 12. Even when the operator is told that the bag of the grains is filled, the operator can operate the switching handle 9 to switch a shutter 10.
Patent JP-2001025594-A (JP)
Title: Sewing machine
Inventor: HIDA SHIGERU
IPC: D05B69/28
Filed: 1999-07-13
Abstract: PROBLEM TO BE SOLVED: To provide a sewing machine which is capable of decreasing the variations by an operator at the time of hook alignment and lessening the occurrence of a skip stitch, needle breakage and sewing defect. SOLUTION: This sewing machine has a spindle which is freely rotatably supported at a sewing machine frame and rotates cooperatively with a drive motor, a needle bar 6 which allows the attachment and detachment of a needle to and from its bottom end and is vertically moved as the spindle rotates, a loop capturing device fixing shaft which is freely rotatably or oscillatably supported at the sewing machine frame and is connected via a transmission mechanism to the spindle, a loop capturing device 10 which is fixed to the loop capturing device fixing shaft and has a loop capturing part 10a for capturing the needle thread loops formed as the needle bar moves vertically,  a loop capturing device position adjusting member 30 which is mountable at the bottom end of the needle bar and a loop capturing device position detecting means 32 which is capable of detecting the contact state between the loop capturing device position adjusting member and the loop capturing part of the loop capturing device.
Patent JP-S6090323-A (JP)
Title: Stroboscopic device
Inventor: NAKAMURA HIROAKI
IPC: H05B41/32
Filed: 1983-10-24
Abstract: PURPOSE:To obtain an optimum light quantity at the time of short distance photographing by bringing a main thyristor connected in series to a flash discharge tube to on and off operations at very short intervals, and raising slowly the light emitting intensity of the flash discharge tube. CONSTITUTION:When a trigger signal is inputted from a camera side to an input terminal X, a trigger thyristor SR1 is ignited by a light emitting trigger signal (a) from a pulse generating circuit 2, and a flash discharge tube FL goes to an excited state. At the same time, a main thyristor SR2 is ignited, and the flash discharge tube FL starts flash light emission. Thereafter, a commutation thyristor SR4 is ignited, the main thyristor SR2 is turned off and attains to a non- conducting state, and light emitting luminance of the flash discharge tube FL is reduced. Thereafter, the thyristors SR4, SR2 and SR3 are ignited successively and the flash discharge tube FL repeats drop and rise of the light emitting luminance successively, therefore, the flash discharge tube FL is considered to continue a light emission at a slow and roughly constant rising rate.
Patent JP-H0732399-A (JP)
Title: Method and device for replacing roll of inclined type calender
Inventor: SHIMIZU KATSUMI
IPC: B29C43/24
Filed: 1993-07-19
Abstract: PURPOSE:To contrive promotion of efficiency and labor saving in the roll replacing work of an inclined type calender. CONSTITUTION:An internal guide rail 15a is bridged between inclined windows formed in housings 2 on the driving side D and working side W so that two downwardly facing sides of roll bearing boxes 6 are supported by the rail 15a. A traveling truck device 18 having outer rail 16 is disposed on the working side W of a calender stand 1 to connect the rail 16 to the rail 15a. A roll 14 is moved from the side D to the side W in the axial direction of the roll 14 to draw it to the outside of the stand 1.
Patent JP-S6447217-A (JP)
Title: Uninterruptible power source equipment
Inventor: HATA YOSHITAKA
IPC: H02H7/18
Filed: 1987-08-11
Abstract: PURPOSE:To improve discharge efficiency of a cell for a, wide range of discharge current, by providing a means for detecting discharge current of cell directly or indirectly and lowering over-discharge protection level according to increase of discharge current. CONSTITUTION:Discharge current of a cell 7 is detected through a current detector 8 and a current signal detected through a multiplier 14 is squared. Output from the multiplier 14 is averaged through a resistor 11 and a capacitor 13 so as to obtain a root mean square of current (I2). Terminal voltage VB of the cell 7 detected through a voltage detection circuit 9 and the root mean square (I2) are added and fed in the form of VB+k.I2 to a comparator 21 through resistors 16, 17 then compared with a voltage set through a variable resistor 20. Consequently, over-discharge protection level can be lowered in proportion to the square of discharge current and the cell can be discharged effectively, resulting in an effective over-discharge protection characteristic.
Patent JP-H04311188-A (JP)
Title: Wide band cathode-ray tube driving circuit
Inventor: SHIRATOU SATORU
IPC: G09G1/00
Filed: 1991-08-08
Abstract: PURPOSE: To provide a wide band cathode-ray tube driving circuit which uses a differential amplifier to extend a high frequency response and a band width in a video signal processing system. CONSTITUTION: A video signal processing system, including a color difference signal generation means which generates color difference signals, a luminance signal generation means which generates a luminance signal, and a cathode-ray tube, is provided with a differential amplification means 41 which differentially amplifies the luminance signal and color difference signals to supply the cathode- ray tube and a current control means 42 which controls the current quantity on the current passage of the differential amplification means 41.  Further, the system is provided with a buffer means 50, which is connected between the luminance signal generation means and the differential amplification means and buffers the luminance signal generated from the luminance signal generation means to supply it to the differential amplification means, or a reference level control means which automatically controls the reference level of the luminance signal generated by the luminance signal generation means in accordance with the brightness of a video signal sent on the transmission side. Thus, a picture having the high picture quality is vividly displayed.