baber/WOPTO huggingface dataset:
Patent JP-S6447267-A (JP)
Title: A/d, d/a converters
Inventor: ISO YOSHIMI
IPC: H02M1/10
Filed: 1987-08-12
Abstract: PURPOSE:To simplify the circuit construction, to make high performance and to make a low cost by using each block both as an A/D and a D/A conversion modes. CONSTITUTION:An A/D and a D/A converters are constituted of an analogue switch circuit 1 for input signal switching, an analogue switch 2, a sampling switch 3, the current switches 4-5, the operation amplifiers 9 and 11, a low-pass filter 10, etc., and an integrating amplifier 12 and attenuators 31-32 are provided. And, the above-mentioned change-over switch 1 gets an audio signal passed through the A/D conversion mode and gets a discharged and charged (integral) signal outputted through the D/A conversion mode every conversion periods of the output of an integrator 9. And, a sample hold circuit has the hold capacity 19, a sampling switch 2, etc., and its signal becomes an output analogue signal through the low-pass filter 10 and an output buffer amplifier 11. Accordingly, even the A/D and the D/A conversion modes can transfer a signal having the maximum amplitude limited by power voltage to the after- low pass filter 10.
Patent JP-S6092680-A (JP)
Title: Semiconductor laser
Inventor: KOGURE SHIGERU
IPC: H01S5/022
Filed: 1983-10-26
Abstract: PURPOSE:To realize a semiconductor laser for photopickup, which can be made the size thereof smaller and can be cut down its manufacturing cost to a lower cost, by a method wherein diffraction lattices are provided at the window parts of cases, wherefrom laser lights of a semiconductor laser are released. CONSTITUTION:A diffraction lattice 12 has been provided at the window part of a case 11, wherefrom laser lights of a semiconductor laser 10 are released. Male threads have been screwed on the outside of the cylinder part of a lower case 14, whereon a semiconductor laser chip 13 has been mounted, while female threads have been screwed on the respective inside of the cylinder parts of upper cases 16 and 18, esch having a window part where a diffraction lattice 15 or a transparent glass 17 have been provided. According to this method, the number of parts items for a photopickup of 3B is reduced, thereby enabling to make the size of the titled laser smaller, to make the weight thereof lighter and to cut down the manufacturing cost of a lower cost.
Patent JP-H0488847-A (JP)
Title: Ac uninterruptible power supply
Inventor: OMORI KATSUYOSHI
IPC: H02J9/06
Filed: 1990-07-27
Abstract: PURPOSE:To continue feeding without momentary interruption and without generation of a cross current between power sources, by outputting a control signal being synchronous with an output voltage of either a phase difference detecting circuit or a current state detecting circuit when the latter detects a discontinuous state of a load current even when the former detects a phase difference. CONSTITUTION:When a rectifier load is connected, a phase difference detecting circuit 102 judges that there is a phase difference between a voltage V and a current i0, Since a duty ratio is smaller than 50%, however, a made switching circuit continues to output a voltage mode to a gate signal generating circuit on the basis of a detection signal from a duty ratio detecting circuit 104. When a power source switching instruction is outputted from a power source switching determination circuit 103 at t1, therefore, a disadvantageous cross current is not generated between a commercial AC power source 1 and an inverter AC power source 2 during a period T4. Since thyristors A to D of an AC switch are controlled by gate signals Sa to Sd being synchronous with a voltage phase signal of a source voltage, besides, the waveform of an output voltage E is not distorted.
Patent JP-S5993235-A (JP)
Title: Electric discharge machining device
Inventor: ONO YOSHIHIKO
IPC: B23H3/00
Filed: 1982-11-17
Abstract: PURPOSE:To enable finishing work to be performed by the same electrode after its roughing work, by providing the work supporting bed of an electric discharge machine movably in the horizontal optional direction from the center and enabling an electrode holder to be revolved around the center in a horizontal sorface. CONSTITUTION:A work supporting bed 5 is provided in a machining tank 1 of an electric discharge machine movably from and turnable around the center in the horizontal optional direction, and an electrode holder 29 can be revolved around the center with a fine radius in a horizontal surface. After roughing a work W with an electrode 27 not being revolved around the center by lowering a ram R, insulating bushes 31 are replaced with those having a clearance between the bush and a guide pin 25, and pulley 35 is rotated to be driven, thus the work is finished while giving the electrode 27 revolving motion around the center with a fine radius.
Patent JP-H0929585-A (JP)
Title: Large size lathe and method of driving the same
Inventor: HONGO MASAYUKI
IPC: H02P7/06
Filed: 1995-07-12
Abstract: PROBLEM TO BE SOLVED: To allow a torque desired by a main drive motor to approach a load torque by applying a control current to a regenerative brake motor while the control current is changed to a value in accordance with the load torque. SOLUTION: When a load torque competes with a spindle 1, that is, its value is sufficiently large, an output is delivered from a speed control part 14, having a sign with which a motor side torque is generated from a main drive motor 4, that is a positive sign. In this phase, no action is taken for a second current control part 12 for a regenerative brake motor 5 due to the operation of a proportional control element 14 (an output value of current on a side where a speed deviation is positive is zero), and the torque of the regenerative brake motor 5 is generated only by a current instruction set in a first current setting unit 18 in which a lower limit value of current is set for always applying a pressure higher than a predetermined value to a second decelerating device 3.
Patent JP-2000029751-A (JP)
Title: Log managing method/device
Inventor: YAMAUCHI HIROSHI
IPC: G06F21/60
Filed: 1998-07-15
Abstract: PROBLEM TO BE SOLVED: To display only a required log according to the level of a user referring to the log. SOLUTION: An account information acquisition part 14 acquires the account of a user requesting display, when log information is to be displayed. A user level decision part 15 decides the level of the user, based on acquired account information and a log retrieval part 16 acquires only the log information corresponding to the level of the user and outputs it from a log output part 18.
Patent JP-H0864438-A (JP)
Title: Resin-molded ignition coil
Inventor: SATO TAKANORI
IPC: H01F27/32
Filed: 1994-08-25
Abstract: PURPOSE: To reduce the temperature rise of a primary winding and to improve the performance of a resin-molded ignition coil used in a high-temperature atmosphere by enhancing thermal conductivity between the core and the winding of the coil. CONSTITUTION: The primary winding disposing position on the surface of the core 6 of a resin-molded ignition coil is covered with an electric insulation film 31 (or insulation film) having high thermal conductivity, and the primary winding 2 is wound on the core 6 via the film 31 in a bobbinless structure. The part of molding resin 8 is embedded in a gap between the film 21 and the winding 2. The winding is so bridged instead of the structure as to be separated from the surface of the core via an insulator, and the gap between the winding of the bridged position and the core may be embedded with the molding resin.
Patent JP-H05185135-A (JP)
Title: Preprocessing of drawn wire
Inventor: DEIITOMAARU IRITSUHI
IPC: B21C9/00
Filed: 1992-07-03
Abstract: PURPOSE: To improve drawing speed by passing through a jet of a curtain-like liquid in order to impart liquid lubricant to a wire and arranging the jet of liquid so as to nearly cross to the drawing direction of the wire at this moment. CONSTITUTION: Liquid lubricant 6 is made to pass through a guide tube 7 and is emitted from the opening slit 8 of a nozzle 14 onto a supporting element formed into a metal plate piece 9, and the metal plate piece 9 is inclined by about 20 deg. to the vertical line so that liquid lubricant 6 generates a prescribed flow. A hole 13 having a diameter of about 10 mm is provided in the central area of the metal plate piece 9, and the wire 1 is guided passing through the hole 13. Since the metal plate piece 9 is almost vertically erected, liquid lubricant 6 is made to flow passing over the hole 13, and a part which is not supported by the curtain 16 consisting of liquid lubricant 6 is formed about vertically to the drawing direction of the wire 1 at this moment. The interacting area between liquid lubricant 6 and the wire 1 is made relatively small by the curtain 16.  The excellent result is obtained even when liquid lubricant 6 has high crossing speed to the wire 1.
Patent JP-H1045069-A (JP)
Title: Method and device for determining phase of hub bolt
Inventor: ITO KEN
IPC: B23P19/06
Filed: 1996-07-30
Abstract: PROBLEM TO BE SOLVED: To provide a highly versatile hub bolt phase determining method and device which can achieve accurate determination of the phases of hub bolts using a single mechanism without being affected by the number of hub bolts placed upright. SOLUTION: A hub bolt 12a serving as a reference bolt is temporarily set at a reference position P by the pawl part 14a of a first moving mechanism 14. Next, the abutting piece 20 of a second moving mechanism 16 activates a pair of hub bolts 12b, 12c that are at equal distances from the reference bolt, thereby moving the hub bolts 12b, 12c onto a reference line X connecting two points located at equal distances from the reference position to correct the position of the reference bolt with respect to the reference position P.  In this case, when three or more hub bolts are placed upright on a hub wheel, the pair of hub bolts located at equal distances from the reference bolt must be present, and since the abutting piece 20 can activate the hub bolts 12b, 12c while avoiding the hub bolts not required for phase determination, accurate phase determination can be made without being affected by the number and intervals of hub bolts placed upright.
Patent JP-S6443623-A (JP)
Title: Water-proofing work of manhole
Inventor: MIYAZAKI YASUO
IPC: E02D29/12
Filed: 1987-08-10
Abstract: PURPOSE:To obtain effective water-proofing work of a manhole by a method in which a deformed rigid or semi-rigid synthetic resin water-proofing material having a smaller diameter than manhole is inserted into the manhole and pressed by heating to restore it to its original form in such a way as to closely cover the inner surface of the manhole with the water-proofing material. CONSTITUTION:An adhesive layer 4 is formed on the inner surface of manhole (a), and a cylindrical water-proofing material 1 folded into a small diameter is inserted into the manhole to restore its upper end opening 2 to an oblong form. A hollow stopper 5 is fitted in the opening 2 and expanded by compressed air to close the opening 2, and steam is supplied through a flow path 5a into the material 1 to restore it to a cylindrical form in such a way as to closely cover the inner surface of the manhole. Compressed air for steam is further supplied, the material 1 is discharged and hardened by cooling, and the opening 2 is with the stopper 5 is removed. Highly advanced water-proofing work can thus be stably and surely secured for each construction work.
Patent JP-H0364292-A (JP)
Title: Chrominance signal frequency converter
Inventor: SUZUKI JUNJI
IPC: H04N9/83
Filed: 1989-08-02
Abstract: PURPOSE:To widen the leading-in range of an AFC loop by constituting the above converter so that a continuous wave of a low frequency conversion chrominance signal frequency generated from the AFC loop utilizes only a signal of a burst part, and the phase comparison in the AFC loop is executed in the rear of the burst part. CONSTITUTION:By an AFC loop which consists of a voltage control oscillator 1, a frequency converter 2 and a phase comparator 3, and executes the phase comparison in the rear of a burst part, a continuous wave of a low frequency conversion chrominance signal frequency is generated, brought to phase comparison with a burst of a low frequency conversion chrominance signal by a phase comparator 5, and by an output of the phase comparator, and an error voltage in an AFC loop passing through a low-pass filter 10, a voltage control oscillator 11 in which the sum of a low frequency conversion chrominance signal frequency and a carrier chrominance signal frequency becomes the center frequency is controlled, and the APC loop for controlling an input carrier chrominance signal frequency by an output of the voltage control oscillator 11 is constituted. Accordingly, it does not occur that the continuous wave of the low frequency conversion chrominance signal frequency being an output of the AFC loop becomes directly a component of the low frequency conversion chrominance signal. In such a way, the gain of the AFC loop is enhanced and the leading-in range can be widened.
Patent JP-H0654308-A (JP)
Title: Device for compressing and encoding picture signal
Inventor: OSHIMA KATSUYA
IPC: H04N19/176
Filed: 1992-07-28
Abstract: PURPOSE:To enhance a compressing and encoding efficiency and to realize high picture quality conversion which is made into a low rate by orthogonally converting an input picture signal, removing noise so as to reduce deterioration in a movable part through the use of the orthogonal conversion coefficient and compression-encoding the conversion coefficient whose noise is removed. CONSTITUTION:The input picture signal 21 is divided into blocks whose size is previously fixed by an orthogonal converting means 1 and applies orthogonal conversion at evey block. The noise of the orthogonal conversion coefficient 22 is removed by a noise removing means 2. The orthogonal conversion coefficient 23 whose noise is removed is inputted to a bit assigning means 3 and an optimum quantization bit number is fixed concerning the respective orthogonal conversion coefficients inside the block. In the meantime, the coefficient 23 is inputted to the quantizing means 4 and processed quantization by following the quantization bit number 24 of the respective orthogonal conversion coefficients outputted from the means 3. The orthogonal conversion coefficient 25 for which quantization is processed is inputted to an encoding means 5, converted to a previously fixed code and outputted to a transmission line, etc.
Patent JP-2000027916-A (JP)
Title: Cushion mechanism of cylinder
Inventor: HIROKI AKIRA
IPC: F16F15/08
Filed: 1998-07-15
Abstract: PROBLEM TO BE SOLVED: To provide a cushion mechanism of a cylinder of excellent buffer effect, in which a piston never impacts in buffering. SOLUTION: When a piston 38 displaces in the direction of an arrow A, air in a cylinder chamber 36 is compressed to generate buffer action, thereby the displacement velocity of the piston 38 reduces. When an orifice 54 is in communication with a cushion chamber 42 under the displacement effect of the piston 38, the air in the cylinder chamber 36 is guided to the cushion chamber 42 through orifices 54b to 54d, a groove part 52 and the orifice 54a. Accordingly, pressure in the cylinder chamber 36 is reduced to prevent the pressure from increasing more than necessity.
Patent JP-H0485211-A (JP)
Title: Goods conveyance device
Inventor: NANBU KUNIO
IPC: B65G47/64
Filed: 1990-07-27
Abstract: PURPOSE:To upgrade disposition capability by supplying goods alternately to a common distributing conveyor after releasing goods received by means of a pair of supply lines to a respective supply station and transfer it to a respective conveyor. CONSTITUTION:Goods, for example egg 3, received by means of a pair of supply conveyors 1, 2 is released by using a transfer device 7, after weighing 4 it at a first and a second supply stations 5, 9, and transferred into a first and a second bucket conveyors 8, 10. Then the egg 3 is transferred from the bucket conveyors 8, 10, which is moving in the arrow (c) direction, alternately to a common distributing conveyor 11 which is moving in the arrow (d) direction. The egg 3 is placed in a respective send-over conveyor after being classified by weight, for example, into seven grades, at a first and a second release stations 12, 13 and discharged from a pack 15 when the pack 15 awaiting is full. Thus disposition capability can be redoubled without increasing the speed of a conveyor.
Patent JP-S6263049-A (JP)
Title: Tool discriminating apparatus
Inventor: TSUJINO KOICHI
IPC: B23Q3/155
Filed: 1985-09-11
Abstract: PURPOSE:To speed up the interchange of tools and prevent malfunctions by providing a reader for reading the kind of tool held in each tool shank on an automatic tool discriminating apparatus such as a machining center having an automatic tool interchanging device. CONSTITUTION:When a predetermined tool is inserted properly into a tool pot and started to be operated, since a transmitter 10 of a tool shank in a tool interchanging position is opposed to a receiver 20, coils 23, 12 are electromagnetically coupled with each other so that the signal of power supply frequency is transmitted to a power source 17 through the coil 23 to supply power to each section. And the parallel signals of a data setting section 14 are converted to the series data in a code generating section 15, and the signal peculiar to the tool shank is FKS modulated to be transmitted to the receiver. The reciver 20 demodulates this signal with a demodulator 28 and converts the signals of the transmitter 10 to the parallel data with a clock extracting section 29 and a series/parallel converter 30 to transmit them to a machine tool through an interface 31 so that the tool in the tool shank can be discriminated.
Patent JP-H0364517-A (JP)
Title: Production of highly collecting polyester yarn
Inventor: UEMATSU HISASHI
IPC: D01F6/62
Filed: 1989-08-01
Abstract: PURPOSE:To obtain the title yarn having extremely high utility by providing polyester yarn with an aqueous solution of a modified polyester copolymer comprising a specific acid component and a glycol component during a yarn making process and then heat-treating at given temperature. CONSTITUTION:Polyester yarn is provided with an aqueous solution or water dispersion of 0.5-5wt.% modified polyester copolymer comprising (A) an acid component consisting of 40-70mol% terephthalic acid, 5-15mol% 5-sodium sulfoisophthalate component and 15-55wt.% dibasic acid component such as isophthalic acid or adipic acid except these acid components and (B) a glycol component having preferably 10-30wt.% polyoxyalkylene glycol during yarn making process and then heat-treated at a temperature shown by the formula (A is softening temperature of the modified polyester copolymer; B is heat- treating temperature) to give the objective yarn.
Patent JP-H1025120-A (JP)
Title: Forming of optical glass
Inventor: NAKAHARA MUNEO
IPC: C03B17/06
Filed: 1996-07-11
Abstract: PROBLEM TO BE SOLVED: To prevent a devitrification generating at an opening part of a tip of an orifice or contamination of an abnormal layer generated from evaporation of glass component into the inside of the glass caused by attaching on flowing out glass surface in forming devitrifiable thick board-like optical glass. SOLUTION: A devitrification or generation of an abnormal layer caused by evaporation from glass surface in the glass is prevented by making an opening part of a tip of an orifice in a flowing out tube a divergent conical shape and sticking fast or dipping the tip opening part on the surface of cast glass. Flow of the glass is smooth because a side on which glass in a guide mold formed in a casting mold flows out is made as about paraboloidal tilted face lowering forward and therefore, any devitrification by broken in or stagnation of the glass is not generated. Further, generation of devitrification in the glass can be suppressed by cooling the surface of the cast glass with an air. By using the method, high quality glass which has not been obtained by a former method can be easily formed even in a devitrifiable thick board-like optical glass.
Patent JP-S6259991-A (JP)
Inventor: KOJIMA OSAMU
IPC: G09G5/36
Filed: 1985-09-10
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-S6443299-A (JP)
Title: Iron
Inventor: KATAOKA YOSHINORI
IPC: D06F75/26
Filed: 1987-08-12
Abstract: PURPOSE: To prevent switch-off from being forgotten due to erroneous setting and to provide a more safety iron by successively changing-over a power feeding condition when the on-time of a setting temp. change-over switch is longer than a previously fixed time and attaining switch-off in case of an off-condition. CONSTITUTION: When the setting temp. change-over switch 6 is turned on within a fixed time, an output change-over circuit 10 outputs the signal of the power feeding condition of chemical fibers A. Then, when the switch 6 is turned on within a fixed time, the output change-over circuit 10 changes the power feeding condition and outputs the signal of the power feeding condition of the chemical fibers B. The signal of the power feeding condition from the output change-over circuit 10 is successively transmitted in order of off → chemical fibers A → B → C → wool → cotton →linen →off → ... → linen → ... whenever the switch is turned on within the previously decided time.  In case of switch-on for more than a fixed time, the output change-over circuit successively changes-over the power feeding conditions by a signal from an on-time detecting circuit 9 and sets the power feeding condition in case the setting temp. change-over switch 6 is turned off. Moreover, the change-over of the power feeding condition is forcibly stopped in case of the off-condition, in spite of the continuous depression of the setting temp. change-over switch 6.
Patent JP-S6357091-A (JP)
Inventor: MURATA SUEHIKO
IPC: D05B65/06
Filed: 1986-08-29
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-S6358629-A (JP)
Title: Optical reproducing device
Inventor: ONISHI KUNIKAZU
IPC: G11B7/135
Filed: 1986-08-29
Abstract: PURPOSE:To improve the wavefront aberration of a primary diffracted light by forming the approximately center part of a recessed or projection part of a phase groove of a diffraction grating provided to an optical reproducing device so that a prescribed relative formula is satisfied. CONSTITUTION:A laser beam 2 from a light source 1 is diffracted by a diffraction grating 3 and a zero-th order beam 4b and + or -1-st order beams 4a and 4c are converged on an optical disk 6 via an objective lens 5. These reflected beams travel back and are made incident on a photodetector 9 via the grating 3 and a concaved lens 8. The grating 3 satisfies another equation in an x-y coordinate system as shown in the figure. Here beta shows the lateral magnification of the lens 5 together with S showing the space between 0-th order and a primary light spots on a recording medium, L showing an optical distance between the grating 3 and the source 1, (a) showing an angle formed by a straight line connecting light spots between zero-th order and + or -1-st order diffracted beams and the direction of an (x) axis, (b) showing an angle formed between the surface of the grating 3 and the optical axis of an incident light beam, showing the wavelength of the laser beam, and (m) showing an optional integer respectively.