baber/WOPTO huggingface dataset:
Patent JP-H01218123-A (JP)
Title: Driving circuit for semiconductor switch
Inventor: MIZOHATA FUMIO
IPC: H03K17/567
Filed: 1988-02-25
Abstract: PURPOSE:To reduce the voltage capacity of a current transformer by inserting a feedback circuit use semiconductor switch subject to on/off control in response to the operation of the semiconductor switch of a main circuit depending on a voltage across a resistor connected with a control power supply for charging the capacitor to a feedback circuit supplying a base current to a transistor(TR) of the semiconductor switch. CONSTITUTION:The secondary winding 3b of the current transformer 3 is connected between the base and emitter E of the TR 1 of the semiconductor switch to supply a base current to the TR 1 by a feedback circuit, to which the feedback circuit use semiconductor switch 11 operated with the voltage across the resistor 12 connected with the control power supply 16 for charging the capacitor 4 as the control voltage is inserted newly. Then the feedback circuit use semiconductor switch 11 is turned on when the semiconductor switch 2 of the main circuit is turned on, the capacitor 4 is discharged, the voltage is dropped and the voltage across the resistor is increased conversely and when the semiconductor switch 2 of the main circuit is turned off, the switch 11 is turned off. Thus, the drive circuit for the semiconductor switch to reduce the capacity of the feedback current transformer is obtained.
Patent JP-H10239021-A (JP)
Title: Lead contact device for semiconductor device
Inventor: MAKINO YOSHIAKI
IPC: G01R31/26
Filed: 1997-02-28
Abstract: PROBLEM TO BE SOLVED: To provide a lead contact device capable of easily positioning a TCP lead and a contact pin, capable of being brought into contact with a narrow-lead pitch TCP lead, and preventing the TCP lead from being damaged. SOLUTION: This lead contact device is provided with an upper illumination 2 and a lower illumination 13 for illuminating the lead 11 of a semiconductor device TCP and a contact pin 5, an image is picked up by an image pickup tube 6 via these illuminations 2, 13, and the lead 11 and contact pin 5 are positioned based on the obtained image information. The lead 11 is obtained as a dark image by the transmitted light of the lower illumination 13, the contact pin 5 is obtained as a bright image by the reflected light of the upper illumination 2, the lead 11 and contact pin 5 can be positioned while they are concurrently confirmed, and they can be easily positioned with high accuracy.
Patent JP-S63213614-A (JP)
Title: Apparatus for refining molten metal
Inventor: MUKAI MASATO
IPC: C21C1/00
Filed: 1987-03-02
Abstract: PURPOSE:To execute bottom blowing injection having high efficiency under safe and stable operation, by specifying shape and construction of curvature, etc., of inner face in a converter. CONSTITUTION:Under standardizing a breadth W1 between both side face parts 5 at a bottom face part 4 of the converter 1, each radius of a front part 2, rear face part 3 and the bottom face part 4 is respectively 1.3-1.5 W1, 0.9-1.1 W1 and 0.6-0.8 W1 and each radius center is located on the horizontal line passing rotating center (g) of the furnace 1 and the line of the inner face is connected at the intersections (d), (b) of curving line with the front face part 2, rear face part 3 and the bottom face part 4. Heights H2, H1 from the lowest position (c) of the bottom face part 4 to each upper end (e), (a) of the front face part 2 and the rear face part 3 are respectively 1.6-1.8 W1 and 1.35-1.55 W1 and the max. interval W3 between the front face part 2 and the rear part 3 is 1.05-1.15 W1 and the plane connecting the above upper ends (a), (e) forms an opening part 6. At the upper part from the horizontal line passing the above center (g) in both side face parts 5, the distance W2 between both side face parts at the opening part 6 is reduced to 0.8-0.9 W1, and each horizontal section is formed as rectangle-shape and plural nozzles 7 for blowing refining agent, etc., are arranged at the bottom part 4. In this way, the blowing nozzles can be located at no contacting position with molten surface in the receiving molten iron operation, etc., except refining time.
Patent JP-S63212563-A (JP)
Title: Thermal transfer type printer
Inventor: TAKEI TORU
IPC: B41J2/325
Filed: 1987-03-02
Abstract: PURPOSE:To form an image of high quality without displacement of a line interval by returning at least one line a recording sheet at the time of stopping or rerecording. CONSTITUTION:Images a1, b1, c1, d1 of 4 lines are, for example, recorded on a recording sheet while considering that an inertial moment acts in a pulse motor 8 to oversheet a sheet feeding. When a CPU 1 receives an image data end signal in a buffer memory 5, the motor 8 is immediately reversely rotated to return the sheet, for example, by 2 lines and to then stop it. When image data of next 4 lines are fetched to a buffer memory 5, the motor 8 is driven to advance the sheet to a position where the previous image is recorded, and the images a2, b2, c2,... are recorded from next line. Accordingly, the stopping position is so controlled by a sub controller 3 as not to displace the interval between the next line and the previous line by considering the inertial moment of the motor 8. In case of a DC motor, an encoder is used to employ a method for counting lines.
Patent JP-H09134668-A (JP)
Title: Shadow mask and its preparation
Inventor: KAN TOUKI
IPC: H01J9/14
Filed: 1996-03-04
Abstract: PROBLEM TO BE SOLVED: To effectively suppress a doming phenomenon and color purity deterioration and provide a low thermal expansion, a high electron reflection, and a high heat radiating function. SOLUTION: A paste-like material having a low thermal expansion, a high electron reflection, and a high heat radiating function is applied to screen meshes corresponding to apertures 23 of a shadow mask 21. Then, a base plate 25 for a shadow mask is placed under the screen meshes and the paste-like material on the screen meshes is printed on the base plate 25 to form a material layer 27 and then a skirt part is formed by pressing the base plate 25.
Patent JP-S62203543-A (JP)
Title: Brushless motor
Inventor: INAGE TORU
IPC: H02K29/00
Filed: 1986-03-04
Abstract: PURPOSE:To improve the efficiency of a magnetic flux which flows to a stator core by providing a groove for forming a magnetic reluctance obliquely on the end face of each pole of a stator core. CONSTITUTION:A magnetic flux from one pole 4a of a magnet unit 4 flows through the end of a pole 5 to the pole 5 of a stator core 7. At this time, part of the magnetic flux tends to flow to adjacent reverse polarity pole 4b side, but the flow is interrupted by a grove 11, and the magnetic flux resultantly efficiently flows from the unit 4 to the core 7. Since the groove 11 is obliquely formed between opposite sides 5a1 and 5a2, the magnetic flux interrupting effect of the grove 11 affects the entire end face 5a to continuously occur against the rotation of the unit 4, thereby sufficiently enhancing the efficiency of the magnetic flux flow to the core 7.
Patent JP-H07251278-A (JP)
Title: Laser beam machine
Inventor: NAKADA YOSHINORI
IPC: B23K26/38
Filed: 1994-03-16
Abstract: PURPOSE:To reduce the time required for the cutting in a laser beam machine where a work is irradiated with the laser beam to perform the laser beam machining according to the command signal from a CNC. CONSTITUTION:A machining distance operating means 1 operates the machining distance L from the point A which is the machining starting position to the present machining position based on the read machining program 1a. A machining condition changing command means 2 reads the laser beam output S and the cutting speed F according to the machining distance L from a machining condition table T, and transmits the command of the laser beam output S to a laser beam oscillating part 20 and transmits the command of the cutting speed F to servo motors 31, 32, 33. Because the respective commands of the laser beam output S and the cutting speed F are increased step by step according to the machining distance L from the machining starting position, the output capacity of the laser beam oscillating part 20 can be utilized to the maximum in the final stage, and the feeding capacity of the servo motors 31, 32, 33 can be utilized t the maximum. Thus, the cutting speed exceeding the saturated cutting speed can be achieved thereby.
Patent JP-S62205277-A (JP)
Title: Method for synthesizing high-hardness boron nitride
Inventor: FUKUSHIMA KAZUHIKO
IPC: C23C16/34
Filed: 1986-03-04
Abstract: PURPOSE:To enable the synthesizing conditions to be variable and to stably synthesize high-hardness boron nitride by passing a gaseous mixture of gas contg. boron atom, gas contg. nitrogen atom and hydrogen through microwave nonpolarized discharge and thereafter introducing it onto the surface of a heated base plate. CONSTITUTION:A gaseous mixture of gas contg. boron atom, gas contg. nitrogen atom and hydrogen supplied from gas feeders 1, 2 is introduced into a reaction chamber 5. This gaseous mixture is passed through microwave electrodeless discharge generated by a microwave oscillator 4, and gases are made to an excited or atomic state. The gaseous mixture is introduced onto the surface of a base plate 7 heated at 300-1,300 deg.C and both gas contg. boron atom and gas contg. nitrogen gas are pyrolytically decomposed and allowed to react with each other to deposit cubic boron nitride. This cubic boron nitride is excellent in thermal shock resistance, thermal conductivity, hardness, abrasion resistance and durability for metal of iron group at high temp.
Patent JP-H11247998-A (JP)
Title: Metal gasket
Inventor: MURATA MASUHIKO
IPC: F16J15/08
Filed: 1998-02-26
Abstract: PROBLEM TO BE SOLVED: To provide a metal gasket such as a cylinder head gasket, having a bead which surrounds a fluid communication hole such as an opening of a combustion chamber, and which can prevent or reduce the development of cracking due to a fatigue caused by repetitions of expansion and contraction of the bead. SOLUTION: A metal gasket is composed of a bead 5 for surrounding a fluid communication hole such as an opening 3 of a combustion chamber, and a stopper part 6 formed of a folded-back part 7 or the like provided at the peripheral edge of the fluid communication hole, inside of the bead 5. The bead 5 is formed with an over preset which is depressed to a height which is lower than the step height T0 of the stopper part 6 by 10 to 50 μm, during a manufacture of the gasket.
Patent JP-H03249564-A (JP)
Title: Outdoor sensor device
Inventor: OZAKI YUKIO
IPC: G01R15/14
Filed: 1990-02-28
Abstract: PURPOSE:To obtain the outdoor sensor having satisfactory measuring accuracy and high reliability by using an epoxy resin composition and liquid rubber for a mold member, and placing a gas seal shape part on the surface of a flange. CONSTITUTION:An outdoor sensor consists of a hollow mold porcelain tube 12 and a split type mold core 11, and contains a voltage sensor 6 and/or a magnetic field sensor 13. A mold member of one of the porcelain tube 12 or the core 11 consists of a hardening epoxy resin obtained by adding a hardening agent and a hardening accelerating agent and adding a filler and a silane cou pling agent in accordance with necessity to a mixture of an epoxy resin of an alicyclic glycidyl ester compound and a hydrogen added bisphenol A type epoxy resin, a mold member of the other consists of hardening liquid rubber composition consisting of a hydrogenerated polyhydroxybutadiene polymer and a hardening agent, and also, a mating face of the core and the porcelain tube is formed in a gas shield shape 12a. According to this constitution, the outdoor sensor of a moisture-proof type which can be attached simply to an electric wire cable and has high measuring accuracy is obtained.
Patent JP-S55139051-A (JP)
Title: Motor
Inventor: ITOU SUKEO
IPC: H02K5/16
Filed: 1979-04-13
Abstract: PURPOSE:To apply a gas bearing to a motor, which turns at relatively low speed, without an air-pump by providing a spiral groove to the outer circumference of the rotor and by making it act as a dynamic pressure gas bearing. CONSTITUTION:To rotor 2 with a rotor yoke that consists of the magnet 3, inner and outer magnetic paths 2a, 2b is attached to the motor shaft 1, which is auxiliarily supported by the magnetic bearing 6 mounted on the central part of the upper case, the motor shaft is further supported at the central part of the surface of the case 7 in the direction of the thrust. Many spiral grooves 13 are formed on the outer circumferential face A of the outer magnetic path 2b of the rotor yoke from the upper and lower sides to the central part of the rotor in the direction opposite to the rotation direction of the rotor 2 to make up a journal gas bearing. Also other spiral grooves 14 of the same pitch as the said spiral groove 13 are provided to the upper and lower end faces B, C of the rotor 2 to introduce air from the small holes 8 drilled in both the case 7 and the upper case 11 into the rotor side along the spiral groove 14.
Patent JP-H08240937-A (JP)
Title: Positive charge toner and electrophotographic method
Inventor: TOYODA AKINORI
IPC: G03G15/16
Filed: 1995-03-06
Abstract: PURPOSE: To obtain a positive charge toner having a large charge amt. and high fluidity by making a charge controlling agent out of an electron donating material and using specified hydrophilic silica fine particles as an external additive. CONSTITUTION: The charge controlling agent consists of at least an electron donating material. The external additive consists of hydrophilic silica fine particles having high resistance as >=1.2×10<7> Ω.cm volume resistance which are prepared by surface treatment of silica particles with an aminosilane coupling agent. The hydrophilic silica fine particles are included by >=0.4wt.%. Thereby, leaking of charges is prevented and a positive charge toner having both of a large charge amt. and high fluidity can be obtd. Fog can be decreased because of the both effects to improve the recovering property of the positive charge toner due to its high fluidity and to decrease the amt. of a toner in the opposite polarity due to the large charge amt.  Transfer can be performed uniformly with the positive charge toner having high fluidity and stable transfer can be performed with a large charge amt. of the toner.
Patent JP-S60223190-A (JP)
Inventor: RUDORUFU BUINTAA
IPC: H01B/
Filed: 1985-03-07
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-H06236801-A (JP)
Title: Decelerating driver
Inventor: MASUDA FUMITOSHI
IPC: H01C10/00
Filed: 1993-02-09
Abstract: PURPOSE:To provide a decelerating driver wherein the adjusting shaft of devices to be adjusted of various types from a one-turn adjustment type up to a multiturn adjustment type is turned and the shaft can be adjusted fine. CONSTITUTION:A decelerating mechanism 3 which is provided with a planet-gear mechanism composed of a sun gear 31, a planet gear 32 and an internal gear 33 and which is provided with an idling clutch function when an excessive load is applied and a driver bit 4 which is connected to the decelerating mechanism 3 and which is constituted so as to be retreated to the shaft direction when a prescribed load is applied to the shaft direction are installed. In addition, a holder 1 which houses the decelerating mechanism 3 and the driver bit 4 and which holds the internal gear 33 constituting the decelerating mechanism 3 so as not to be turned and a rotation-preventing member 5 which is coupled to or abuts on the body or the like of a device 7 to be adjusted and which prevents the holder 1 from being turned with reference to the device to be adjusted are provided.
Patent JP-S60191332-A (JP)
Title: Square root arithmetic system
Inventor: ONO AKIRA
IPC: G06F1/03
Filed: 1984-03-12
Abstract: PURPOSE:To simplify the hardware and to calculate a square root with stabilized high accuracy and in a short time by setting separately a table memory in order to obtain an arithmetic answer within the maximum allowance error. CONSTITUTION:A digital signal is supplied to an input part 1 of a square root arithmetic system, and the square root operation of the input signal X is carried out at a logical arithmetic part 5 by a program of a ROM4. Then the calculated square root is delivered through an output part 6. The ROM4 consists of a table memory 2 and a program memory 3. At the same time, a section is previously set to the memory 2 in order to obtain a square root when the signal X undergoes the extraction of the square root. Then the extracted root obtained through the section decision of the memory 2 is calculated at the part 5. The arithmetic result obtained at the part 5 is delivered through the part 6 in the form of a digital output. Thus it is possible to calculate a square root with stabilized accuracy and in a short time.
Patent JP-H05248941-A (JP)
Title: Thermoelectric cooling type infrared ray sensor
Inventor: HIROTA KOJI
IPC: G01J1/02
Filed: 1992-03-03
Abstract: PURPOSE:To provide a thermoelectric type infrared ray sensor to prevent vacuum destruction inside of the case. CONSTITUTION:A thermoelectric type infrared ray sensor is provided, on the base 14 of a package 14, with a thermoelectric element 16 which is formed by pinching a plurality of semiconductor blocks 30a-30c generating Peltier effect between insulative boards 28a-28d, and an infrared ray sensor 22 is mounted on the thermoelectric element 16, and this sensor 22 and a thermoelectric element 16 are installed sealedly in the case 18 of the package having an infrared ray transmission window 20. Ring-shaped grooves 21, 19 are formed at the surface in the neighborhood of the periphery of the window 20 and at the surface in the neighborhood of the window fitting part of this case 18, and a ring- shaped sealing member 34 having a ridge 34a mating with the grooves 19, 21 is installed in an area over the case 18 and window 20 by fitting the ridge 34a in the grooves 19, 21.
Patent JP-H02224973-A (JP)
Title: Method and device for shot blasting
Inventor: ENOMOTO KUNIO
IPC: C21D7/06
Filed: 1989-02-27
Abstract: PURPOSE:To increase the machining depth of peening, make the compressed residual stress on a surface uniform, and improve surface roughness by carrying out the peening machining of a cylindrical workpiece by using heavy-weight and light-weight shot grains. CONSTITUTION:A blasting shot gun 3 has a flow passage 15 for introducing shot 6, conveying fluid 7, and a jet stream 10 to a nozzle 14, while being rotatable around a connecting rod 5 and further being fitted to the connecting rod 5 so as to be movable also in the axial direction together with a thrust bearing 16. By inserting the nozzle 14 into a cylindrical workpiece 8, heavy-weight rough-grain shot from a blasting machine 24, together with the conveying fluid 7, is injected toward and made collide with the inner face of the workpiece 8 from the nozzle 14 to carry out deep layer peening. Then, light-weight fine- grain shot from the blasting machine 24, together with the conveying fluid 7 is injected out of the nozzle 14 to carry out surface layer peening. In this case, the space including the machining position of the workpiece 8 is closed up by means of a shielding mechanism (cylinder) 14.
Patent JP-S62202711-A (JP)
Inventor: BABA SEIICHI
IPC: H01L21/78
Filed: 1986-03-03
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-S58162162-A (JP)
Title: Interphone provided with clock
Inventor: MORIYA NAKANOBU
IPC: G10K15/04
Filed: 1982-03-23
Abstract: PURPOSE:To prevent quiet sleep during the night or the like, by reducing the volume of a chime tone by an output from a clock circuit during a previously set up time band. CONSTITUTION:The clock circuit 8 is set up so that outputs are generated from an output terminal 8a during a required time band, e.g. 7 p.m. through 7 a.m. Consequently, outputs are generated from a flip flop circuit in the clock circuit 8 during said time band, so that a switching circuit 17 is turned on and a switching circuit 18 is held off by the output of a gate circuit 21. Therefore, a chime signal from a terminal 7a is passed through a resistor 20 and the sound volume of the chime is reduced during the night.
Patent JP-H03248454-A (JP)
Title: Hybrid integrated circuit device
Inventor: SENBA NAOHARU
IPC: H01L25/18
Filed: 1990-02-26
Abstract: PURPOSE:To prevent an island form being deformed by fixing an insulating substrate stretching over the island, which is supported with handing pins from a lead frame, and over the tips of all or some of inner leads and sealing the substrate with resin. CONSTITUTION:Hanging pins 2 to suspend an island 7 are attached to the four corners of a lead frame 1, inner leads 5 and 6 are arranged around the island 7, and a circuit substrate 4 is fixed to the tips of the inner leads 5 and 6 and the island 7. The circuit substrate 4 is fixed to all or some of the inner leads. Passive elements 8 and active elements 9 are mounted on the circuit substrate 4, connected with metallic thin lines 10, and sealed with armoring resin 3. Therefore, the island to mount great part of the substrate is not deformed by the resin inflow speed in resin sealing because it is supported also with the inner leads through the substrate. The hanging pins have only to be formed at the four corners so as not to change the outside dimension of a device, increasing the number of pins favorably.
Patent JP-H09237469-A (JP)
Title: Magnetic recording and reproducing device
Inventor: NARUOKA YOSHIHIKO
IPC: G11B20/10
Filed: 1996-03-04
Abstract: PROBLEM TO BE SOLVED: To flexibly correspond a data recording rate to a data transfer rate by obtaining the number of divided blocks for one track recording on a tape and the number of data recorded blocks in the number of these divisions based on the data transfer rate of the data transferred to the device and the recordable maximum data recording rate of the device, and controlling the write-in from these calculation results. SOLUTION: By a data transfer rate detecting device 22, the data transfer rate of a signal S11 from a signal transmitting device 21 is detected and the signal S11 is divided into blocks by making the time required for recording one track as one period, and this signal S12 is once stored in a time base conversion memory 23, and with a signal S14 processed for conversion from the stored signal S13, the number of blocks N and M are decided so as to follow to a specified formula in an N.M specifying device 25. Then a signal S15 corresponded to the decided number of blocks N and M is supplied to a modulation/electromagnetic conversion device 26 and the data are recorded on the magnetic tape 11.
Patent JP-S59172153-A (JP)
Title: Magnetic recording medium
Inventor: MATSUURA TAKESHI
IPC: G11B5/735
Filed: 1983-03-20
Abstract: PURPOSE:To decrease considerably light transmittance in a magnetic part without giving any adverse influence on the filling density, etc. of magnetic powder by incorporating carbon black having >=3wt% volatile component in the back coating layer on the rear of a base in a tape of a VHS system. CONSTITUTION:A back coating layer contg. a filler consisting of carbon black having >=3wt% volatile component and zinc oxide powder having <=0.3mu average particle size is provided on the rear of a base having a magnetic layer on the main surface. The carbon black contg. >=4wt% volatile component consisting essentially of an oxygen-contg. group such as a carboxylic group, quinone group, phenol group or lactone group is used. Zinc oxide powder having <=0.3mu average particle size is further used in combination therewith to provide fine and smooth ruggedness in the surface condition of the coating layer, by which the wear resistance is prevented and the chip-off of said layer by sliding contact with the guide of a VTR is prevented. The back coating layer is formed by applying a coating prepd. by mixing and dispersing a filler composed of carbon black and zinc oxide powder in a binder on the rear of the base formed preliminarily with the magnetic layer on the main surface to 0.3-3.0mu thickness.