baber/WOPTO huggingface dataset:
Patent JP-H0766545-A (JP)
Title: Formation of solder layer and solder sheet
Inventor: KAWASAKI YOGO
IPC: H05K3/24
Filed: 1993-08-30
Abstract: PURPOSE:To provide a method of forming a solder layer, which does never bring even pads arranged at a narrow pitch into contact with the solder layer provided adjacent to the pads, is capable of forming the high-quality solder layer having not an irregularity in the amount of solder accurately and easily and is capable of corresponding fully to the miniaturization of a circuit, by a simple method. CONSTITUTION:In a method of forming a solder layer 30, which forms the solder layer 30 on a pad 22 provided on the surface of a printed-wiring board 20, a solder sheet 10 having a solder pattern 13 formed by etching a solder foil adhered on the surface of a sheetlike base material is placed on the board 20 and the pattern 13 is molten to transfer a solder to the lad 22.
Patent JP-S60105747-A (JP)
Inventor: TANIGAWA TAKAHIRO
IPC: E04B9/00
Filed: 1983-11-14
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-H0263213-A (JP)
Title: Power switch circuit
Inventor: MOCHIZUKI HIROTAKA
IPC: H01L27/06
Filed: 1988-08-29
Abstract: PURPOSE:To quicken the changeover of an output MOSFET of a source follower form into the off-state by devising that circuit such that the output MOSFET is again in the on-state when a counter electromotive force reaches a sum of a constant voltage of a constant voltage element and a base-emitter voltage of the 1st switching transistor(TR) and that of a current mirror TR. CONSTITUTION:When a negative voltage generated in a load L reaches a base- emitter voltage VBE(T3) of a TR T3, a Zener voltage VZD of a Zener diode 2D and a base-emitter voltage VBE(T1) of a PNP TR T1, the TR T1 is turned on and a current corresponding thereto flows to a base of an NPN TR T4. Since a TR T4 is turned on to turn off the TR T3, a power MOSFETQ1 is turned on and the energy stored in an inductive load L is discharged in a short time at a comparatively higher voltage -(VBE(T1)+VZD+VBE(T3)). Thus, the output MOSFETQ1 is turned off in a short time.
Patent JP-2000031565-A (JP)
Title: Flash lamp drive circuit and flash lamp drive method
Inventor: MATSUMOTO KATSUHIRO
IPC: H01S3/092
Filed: 1998-07-15
Abstract: PROBLEM TO BE SOLVED: To obtain high response characteristic of an output current for PWM signal with a chopper circuit in a drive circuit of pulse excitation laser by providing a couple of switching elements to make the switching operation by shifting the phase of each switch and then making small the reactor and capacity of a capacitor. SOLUTION: A chopper circuit of lamp has power transistors TR1, TR2 as the switching elements, flywheel diodes D1, D2, reactor L1 and capacitor C1. The pulse width modulated(PWM) signal output from a controller 1 is input to the base terminals G1, G2 of the power transistors TR1, TR2. In regard to the one period operation of lamp discharge current, when TR1 and TR2 are ON, a discharge current increases via L1, when TR1 is OFF and TR2 is ON, a current continuously flows by consuming charges stored in C1 via D2, when TR1, TR2 are ON again, a discharge current increases because charges of C1 increased, and when TR1 is ON and TR2 is OFF, a current continuously flows by consuming charges from C1 via D2.
Patent JP-H08120481-A (JP)
Title: Decorative member
Inventor: MATSUMOTO YOSUKE
IPC: C23C14/16
Filed: 1995-08-23
Abstract: PURPOSE: To produce a decorative member of the color of white, gold, black or the like causing no Ni allergies by coating the surface of a base material with a copper-base metal plated substrate, a tin-copper-Pd alloy plated layer having a specified compsn. and a finish plated layer composed of Pd, Rh and Rt in succession respectively by specified thickness. CONSTITUTION: The surface of a base material 1 constituted by brass is applied with a substrate 2 of copper or a copper alloy of >=1μm thickness. This surface is applied with a tin-copper-Pd alloy plated layer 3 of >=0.2μm thickness contg., as essential components, by weight, 10 to 20% Sn, 10 to 80% Cu and 50% Pd. This surface is applied with a finish plated layer 4 of 0.2 to 0.5μm thickness composed of one or more kinds among Pd, Ph and Pt.  Or, the layer 4 is formed of a gold or gold alloy plated layer contg. no Ni with 0.02 to 5μm thickness, or the layer 3 is applied with a TiN layer of 0.1 to 10μm thickness and the layer 4 is formed of a gold or gold alloy plated layer contg. no Ni with 0.005 to 0.5μm thickness. or the layere 3 is applied with a Ti layer of 0.2 to 1.0μm thickness and the layer 4 is formed of a TiNCO layer or the like with 0.5 to 2.0μm thickness.
Patent JP-H0497338-A (JP)
Title: Photoimage forming material
Inventor: YANAGIHARA NAOTO
IPC: G03C1/675
Filed: 1990-08-14
Abstract: PURPOSE:To obtain the photoimage forming material which is sufficient in color developing density, has excellent stability of images and is black in color developing dyes by forming a leuco dye of a xanthene compd. having no amino group in the 2-position and 6-position. CONSTITUTION:The leuco dye is the xanthene compd. having the amino group in the 2-position and 6-position. The amino group in the 2-position of the xanthene compd. which is the leuco dye is preferably substd. with two pieces of hydrogen atoms in this case. One of the substituents of the amino group in the 2-position is preferably a phenyl group and the other is an alkyl group. Of the xanthene compd., the xanthene compd., the phenyl group of which is further substd. with an electron-attracting group is more preferable. The electron-attracting group is preferably a trifluoromethyl group, alkyl sulfonyl group, aryl sulfonyl group, N,N'-dialkyl sulfamoyl group, aryloxysulfonyl group. The color developed images having the stable black color of the sufficient density are obtd. in this way.
Patent JP-H0665159-A (JP)
Title: Production of alkyleneamines
Inventor: SAITO TOSHIAKI
IPC: C07C211/09
Filed: 1992-08-12
Abstract: PURPOSE:To obtain a compound useful as a chelating agent efficiently in high selectivity and in high yield without occurrence of by-product and problems of corrosion of device, etc., by reacting a specific aziridine compound with ammonia, etc., in the presence of a specific catalyst. CONSTITUTION:An aziridine compound of formula I (R<1> and R<2> are H, methyl or ethyl) is reacted with ammonia or amine of formula II (R<3> and R<4> are H, 1-4C alkyl or 2-4C aminoalkyl; (m) is 0-4) in the presence of a catalyst prepared by crosslinking layer clay belonging to the genus smectite to give the objective compound of formula III ((n) is 1-20 larger than (m)).
Patent JP-H1152034-A (JP)
Title: Method and device for monitoring battery life and automatic notifying device
Inventor: IMURA YONEKAZU
IPC: H01M10/42
Filed: 1997-08-08
Abstract: PROBLEM TO BE SOLVED: To simplify notifying and adapting operations by measuring battery properties (a battery voltage) at the time of the recovery period of battery properties within a predetermined period of time, creating a measured voltage signal, determining the end-of-life period of a battery life on the basis of the recovery time of battery properties, and recognizing operating limitations. SOLUTION: An automatic notification device 30 controls a battery life monitoring device 10 and constitutes a notifying means 19 which automatically recognizes the operating limitation of a battery life and creates a notification signal 19a to a gas control center according to an instruction 12b for notifying battery exhaustion. The device 10 is constituted of a sampling reference time generating means 18, a time determining means 16, a life determining means 12, and a voltage measuring means 14. Then in the first process, the voltage measuring means 14 is controlled to measure a battery voltage Vbat immediately before the impression of load for recognizing life limitations. In the second process, the battery voltage Vbat at the time of the recovery period after the impression of load is measured. In the third process, the recovery time is calculated on the basis of a sampled voltage 14a. In the fourth process, the end of-life period is determined.
Patent JP-H0552595-A (JP)
Title: Differential input type optical sensor
Inventor: TAKEDA IKUO
IPC: G01D5/36
Filed: 1991-08-27
Abstract: PURPOSE:To enable highly accurate detection even in case of different incident light amount by making standard center of luminous spots to be symmetrical against each light receiving position, and synthetic output of light receiving elements which are point-symmetrically arranged, to be input to a differential amplifier. CONSTITUTION:On a light receiving element array, a light receiving part 21 for an A phase signal and a compensating light receiving part 33 for an A phase signal on an inverted side, a light receiving part 23 for an A phase signal and a compensating light receiving part 35 for an A phase signal on a non-inverted side, a light receiving part 25 for an B phase signal and a compensating light receiving part 37 for an B phase signal on an inverted side, a light receiving part 27 for an B phase signal and a compensating light receiving part 39 for a B phase signal on a non-inverted side, a light receiving part 29 for an Z phase signal and a compensating light receiving part 41 for an Z phase signal on an inverted side, and a light receiving part 31 for an Z phase signal and a compensating light receiving part 43 for an Z phase signal on a non-inverted side, are arranged a symmetrically each other, and then each output signal is added and synthesized. The added and synthesized input signal of inverted side A phase, B phase and Z phase are input to inverted input terminals of the differential amplifiers 45, 47 and 49, and the input signal of non-inverted side is input to non-inverted input terminals of the amplifiers 45, 47 and 49, respectively, and then rectangular shaped A, B and Z phase signal are output individually.
Patent JP-H0754685-A (JP)
Title: Traction control controlling device of vehicle
Inventor: YAMASHITA TETSUHIRO
IPC: F02B33/00
Filed: 1993-08-06
Abstract: PURPOSE:To consistently maintain reliability of a traction control control device and protection of an exhaust system by improving responsibility of supercharging pressure control at a high standard;t the time of controlling a slip amount by controlling supercharging pressure in the traction control control device of a vehicle mounting an engine with a supercharger in an air intake system. CONSTITUTION:As a table of control gain to apply a control label for supercharging pressure control, a gain increasing table to select at the time when supercharging pressure detected by a pressure sensor 37 is high is set, and when the supercharging pressure is high, by applying the control label to the gain increasing table, gain of the supercharging pressure control is increased, and opening and closing speed of an air by-pass valve 20 is increased. Also at the time when a slip amount of driving wheels 1, 2 exceeds a target value, by selecting the gain increasing table, control gain is increased, and to the contrary, when it is lower than the target value, a gain standard table or a gain decreasing tabel is selected.
Patent JP-S6460049-A (JP)
Title: Remote maintenance system in private branch exchange
Inventor: TAKEYA HIROYUKI
IPC: H04M3/22
Filed: 1987-08-31
Abstract: PURPOSE:To wholly eliminate a procedure concerning selection and to take an advantage on operation by automatically selecting a MODEM to be suitable for the system of the MODEM of a maintenance person side out of the MODEMs of a private branch exchange side. CONSTITUTION:The plural types of MODEMs 11 and 12 and a selecting circuit 14 to select the MODEM to match with the MODEM of a device side for maintenance out of the plural types of the MODEMs 11 and 12 are provided in the private branch exchange side. Thus, the MODEM is automatically selected by the selecting out of the plural types of the MODEMs 11 and 12 of the private branch exchange side by the selecting circuit to properly execute communication with the MODEM set in a distant place and the procedure to manually select the MODEM is eliminated.
Patent JP-S6195893-A (JP)
Inventor: TSUGE KAZUO
IPC: B25J17/02
Filed: 1984-10-15
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-2001044704-A (JP)
Title: Distributed constant circuit element, its manufacture and printed circuit board
Inventor: HIRABAYASHI TAKAYUKI
IPC: H01P11/00
Filed: 1999-07-29
Abstract: PROBLEM TO BE SOLVED: To obtain a desired frequency characteristic of a distributed constant circuit element without incurring cost increase in spite of miniaturization and thin profile. SOLUTION: Two resonator patterns 13a, 13b to configure a band-pass filter are placed in parallel between ground conductors 12a and 12b of this distributed constant circuit element. A dielectric layer 14 made of a material with a higher dielectric constant than that of a dielectric board 11 is formed between the resonator patterns 13a and 13b. The electric field in an old number exciting mode can be enhanced more in comparison with the distributed constant circuit element without the dielectric layer 14. An odd number mode impedance Z0 is decreased, the electric field in an even number exciting mode is almost made equal and a degree of coupling β is increased. The pass-band is made brother.
Patent JP-H1043942-A (JP)
Title: Manufacture of female screw of plate material
Inventor: ARAIDA TOKUO
IPC: B23G1/16
Filed: 1996-07-26
Abstract: PROBLEM TO BE SOLVED: To accurately control a position of a screw member to be screw-fitted to a screw hole, and reduce its manufacturing cost. SOLUTION: A cylindrical screw cutting boss 2 is protrusively arranged on one side surface 1A of a plate material 1. A screw prepared hole is bored in the other side surface 1B of the plate material 1 from one end 2A of the screw cutting boss 2. Plural slit grooves 4 are formed toward the vicinity of one side surface 1A of the plate material 1 from its one end 2A in the screw cutting boss 2, and the inside of the slit grooves 4 is opened in the screw prepared hole, and the outside is opened on an outer periphery 2B of the screw cutting boss 2. A female screw is worked toward the screw prepared hole, and a female screw 5 is formed in the screw prepared hole.
Patent JP-2001041348-A (JP)
Title: Structure of valve
Inventor: MORI YASUO
IPC: F16K31/70
Filed: 1999-07-29
Abstract: PROBLEM TO BE SOLVED: To provide structure of a valve, capable of trying to miniatuarize the valve in size by saving a space for disposing a high temperature cut-out valve and a check valve. SOLUTION: The valve main body 11 is formed out of a main body case 12, and of a valve body housing pipe 17 connected with both the sides of the main body case 12. A high temperature cut-out valve 31 and a check valve 41 are disposed in the valve body housing pipe 17. A guide valve 31, is provided for the high temperature cut-out valve 31, and the check valve 41 is provided with a supporting projection to be inserted in the guide pipe 34. The high temperature cut-out valve 31 and the check valve 41 are so disposed in the valve main body that both of the valves are piled up at one part in a state that the supporting projection is inserted in the guide pipe 34.
Patent JP-H0497568-A (JP)
Title: Non-volatile memory and its production
Inventor: KODAMA NORIAKI
IPC: H01L29/788
Filed: 1990-08-15
Abstract: PURPOSE:To microminiaturize a non-volatile memory cell by permitting source wiring to be a flat conductive film which has an opening in a bit contact forming area. CONSTITUTION:The memory is provided with a control gate electrode 5, which intersects orthogonally with an array constituting area 27, a floating gate electrode 3 in the intersecting part of the area 27 and a source diffused layer 8 and a diffused drain layer 9 at the parts sandwiching the control gate electrode 5 in the area 27. The memory is provided with a source line 14, which is connected with the source diffused layer 8 through a self-conformable source contact 11 for the control gate electrode 5 and that has a drain opening 28 in an area which includes the area above the diffused drain layer 9, and a bit line 19 which is connected with the diffused drain layer 9 through the bit contact 17 in the drain opening 28. When forming the bit contact 17, the minimum limit of the cell size in the direction of the control gate electrode 5 is reduced and the limit of the gate length L of the control gate electrode 5 in the direction of the bit line 19 is eliminated.
Patent JP-H0497588-A (JP)
Title: Solder resist formation method
Inventor: HIRAI OSAMU
IPC: H05K3/28
Filed: 1990-08-15
Abstract: PURPOSE:To cover the inwall of a via hole with solder resist by junctioning a first mask film with a substrate, and exposing the solder resist ink at the wall face of the via hole, and junctioning a second mask film, and exposing the ink at both the obverse and the reverse. CONSTITUTION:By spray application, photosensitive solder resist ink 4 is applied all over both the obverse and the reverse of a substrate 1 and the wall face of a via hole 3. A mask film 5, which is transparent only in the position of the via hole 3, whose inwall is to be coated with solder resist ink 4, is junctioned with the board 1, and the solder resist ink 4 at the inwall of the via hole 3 is exposed by applying scattered light so that the light may hit on the inwall of the via hole 3. Then, a mask film 6 is junctioned with the board 1, and the solder resist at both the obverse and the reverse of the board 1 is exposed with specified patterns. It is exposed, and using heat or heat and ultraviolet rays in combination, the solder resist ink 4 is hardened, thus the solder resist 7 is formed.
Patent JP-S58109660-A (JP)
Inventor: BERUNHARUDO KOTSUHO
IPC: D03D51/24
Filed: 1982-12-10
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-2001009762-A (JP)
Title: Dimensioning tool and usage therefor
Inventor: HIGUCHI KAZUMI
IPC: B25H7/04
Filed: 1999-06-23
Abstract: PROBLEM TO BE SOLVED: To easily put a mark on a paper sheet by arranging a finger applying cover on a rotary plate for arranging projecting parts of a regular interval in an outer peripheral part on the tip of a handle of a grip lower part. SOLUTION: A rotary plate 3 used for a dimensional display (a dimension display part 5 and graduations 11) is selected, a finger is applied to a finger applying cover 4 by holding a grip 1, projecting parts 2 on the outer periphery of the rotary plate 3 are applied to a paper sheet, and are rotated in the using direction to put marks of a regular interval on the paper sheet. When replacing the rotary plate 3 of the other different dimension, the grip 1 and a handle 6 are held with both hands to be pulled out and removed. A screw type is removed while rotating it in the removing direction by holding the grip 1 and the handle 6 with both hands, and a rear end part 8 of the other handle 6 is inserted and installed in a shaft cylinder part 9 on the tip of the grip 1. The screw type is installed by rotating it in the installing direction.  Thus, a dimension of a regular interval can be marked on the paper sheet only by rotating a dimensioning tool.
Patent JP-H02100981-A (JP)
Title: Method and device for generating elevator hole information in elevator
Inventor: HANSUIERUKU ARUNOSUTEI
IPC: B66B1/50
Filed: 1989-08-22
Abstract: PURPOSE: To provide a method and a device of a compact constitution for generating elevator shaft information by realizing bridging between a door contact and a lock contact by a contact of a safety relay installed on a light bar type safety device. CONSTITUTION: When an elevator cage is lowered, an operation blade gets into a light bar type safety device 1 from the underside, an upper horizontal edge part of the operation blade 2 covers two light transmitters S1 and S2 disposed on the same horizontal line to shield light beams substantially simultaneously, and this is defined as detection. Two comparators V1 and V2 without recognizing frequency errors between inputs S and E before invasion of the operation blade 2 into the light bar type safety device 1 define substantially simultaneous loss of receiver frequency as detection of the input E, and this change is inverted in the next signal form regulating devices SF1 and SF2 to be processed into a positive signal step.
Patent JP-H0498231-A (JP)
Title: Camera with built-in stroboscope
Inventor: MIYAZAKI SATOSHI
IPC: G03B7/16
Filed: 1990-08-17
Abstract: PURPOSE:To prevent the occurrence of an overexposure, etc., by inhibiting the selection of a forced light emitting mode when a diaphragm priority AE mode is selected, CONSTITUTION:An exposure mode setting means 101 is provided on the upper part of a stroboscopic mode setting means 102, and the setting of a stroboscopic mode is restricted by the output of the exposure mode setting means 101. Especially, the selection of a stroboscopic forced light emitting mode is inhibited when the diaphragm priority AE mode is selected. while, the stroboscopic mode setting means 102 is made inoperative when a manual mode is selected, and light emission is always carried out by a prescribed light quantity, when shutter speed is longer than flash light emission synchronizing time.
Patent JP-H09101523-A (JP)
Title: Liquid crystal display element
Inventor: TAKEI TOSHIRO
IPC: G02F1/1337
Filed: 1996-07-30
Abstract: PROBLEM TO BE SOLVED: To provide a liquid crystal display element with which the meticulous control of gradations is possible. SOLUTION: This liquid crystal display element is constituted by sealing chiral nematic liquid crystals 13 added with about 1wt.% dichromatic dyes between a substrate 11 formed with electrodes 14 and a perpendicularly oriented film 16 and a substrate 12 formed with electrodes 15 and a horizontally oriented film 17. The twist angle θ of the liquid crystal molecules of this liquid crystal display element is >=5π to <(5/3)π radian. The cell gap (d) of the liquid crystal display element and the natural pitch (p) of the nematic liquid crystals 13 are so selected that d/p satisfies the equation (θ/2π)-(1/4)<d/p<(θ/2π)+(1.4).
Patent JP-S59107424-A (JP)
Title: Manufacture of magnetic recording medium
Inventor: HASHIMOTO HIROSHI
IPC: C09D175/06
Filed: 1982-12-08
Abstract: PURPOSE:To obtain a tape with superior electromagnetic transducing characteristics and durability by applying a coating liq. contg. ferromagnetic fine powder and a compound having two or more (meth)acrylate groups in the molecule to a support having a specified coefft. of thermal shrinkage in the longitudinal direction and by irradiating electron beams to cure the resulting layer. CONSTITUTION:A magnetic coating liq. contg. ferromagnetic fine powder and a compound having two or more (meth)acrylate groups at the terminals of the principal chain of the polymer chain or in the side chain is applied to a support having <=0.15% coefft. of thermal shrinkage in the longitudinal direction such as a polyethylene terephthalate support. Diethylene glycol diacrylate, trimethylolpropane tri(meth)acrylate or the like is used as said compound. The resulting magnetic layer is dried by evaporating the solvent, and electron beams are irradiated to cure the layer. The layer is cured in a short time, and a tape free from the tape skew and superior wear resistance is obtd. The tape is suitable for use as a videotape or the like.