baber/WOPTO huggingface dataset:
Patent JP-H0362959-A (JP)
Title: Manufacture of lead frame
Inventor: FUKUI ATSUSHI
IPC: H01L21/56
Filed: 1989-07-31
Abstract: PURPOSE:To enhance adhesion with a sealing resin and to reduce time change by machining the shape of a lead frame, performing plating as required, and performing primer treatment in the vicinity of at least a package line other than a bonding area and outer leads with a silane coupling agent. CONSTITUTION:A lead frame 1 is formed, Then coining is performed. The flat width of the tip part of each inner lead 4 is secured. Then, plating M is performed at the tip part. Said lead frame is mounted on a rack made of Teflon. Then, the entire body is immersed into primer solution wherein a silane coupling agent of several % is dissolved into hexane and isopropyl alcohol for several seconds. The lead frame is made to remain for 4-5 hours at normal temperature. Then the lead frame is dried. A film 10 having the thickness in the order of Angstrom  is formed on the surface. Therefore, the film of the coupling agent formed on the surface of the Iead frame reacts with both the resin and the surface of the lead frame in a resin sealing step. An intermediate material is formed between the surface of the lead frame and the resin, and adhesion is improved to a large extent.
Patent JP-H0621722-A (JP)
Title: Receiver
Inventor: SAWAHASHI MAMORU
IPC: H03D3/00
Filed: 1992-07-03
Abstract: PURPOSE:To make high speed channel changeover and to make the circuit small by using a loopback signal whose center frequency is zero so as to extract a modulation signal component from digital I, Q channel signals subjected to orthogonal detection. CONSTITUTION:A frequency converter 103 generates an intermediate frequency signal different from a center frequency in response to each channel by a common frequency synthesizer 104 with respect to plural RF signals having a different center frequency. Plural filters 106 whose center frequencies differ from each other limit each band of the intermediate frequency signal and a limiter amplifier 107 amplifies these signal up to a required level. The modulation signal is converted into both I, Q channel signals by orthogonal detection circuits 109-112 and A/D converters 115, 116 convert the signal into a digital signal. The frequency conversion digital filters 119, 120 sample the signal at the center frequency to extract a modulation signal by using a loopback signal whose center frequency is zero. Then a demodulation section 121 demodulates the signal by digital processing.
Patent JP-2000032755-A (JP)
Title: Power supply apparatus
Inventor: AZUMA SEIYA
IPC: H02J1/10
Filed: 1998-07-14
Abstract: PROBLEM TO BE SOLVED: To provide a power supply apparatus which is composed of a simplified circuit structure, and is capable of accurately regulating an output voltage with simplified manipulation with less failure generation possibility. SOLUTION: A power supply apparatus supplies an output voltage to the common load via the diode D3 of each DC power supply 1A, 1B, by connecting in parallel at least one unit or more of the DC power supply 1A, 1B provided with a diode D3 as an impedance element of which impedance is equal to that of the output line.  The power supply apparatus is provided with an external regulated voltage supplying circuit 3 for supplying the voltage adjustable external regulated voltage VZ to each DC power supply apparatus 1A, 1B; and an internal voltage control circuit 2 for comparing the external regulated voltage VZ from the external regulated voltage supplying circuit 3 provided in the DC power supply apparatus 1A, 1B with the voltage applied to the diode D3, and then equalizing the voltage applied to the diode D3 in the DC power supply apparatus 1A, 1B through the output voltage control to equalize these voltages.
Patent JP-H1049723-A (JP)
Title: Automatic cash processor
Inventor: SAKATA MASAHARU
IPC: G07D9/00
Filed: 1996-07-29
Abstract: PROBLEM TO BE SOLVED: To prevent the malfunctions of an electromagnetic lock or a solenoid by a short-circuit current by supplying electric energy supplied from a power source through a driving means to a locking means. SOLUTION: Circuit constitution for supplying a power supply voltage (VCC) supplied from a grounded (FG) power source 21 through a driving circuit 202 to the electromagnetic lock or the solenoid 200 is attained. That is, when control signals are inputted to the driving circuit 202 and a driving element is driven, a current is made to flow in the route of the VCC → the driving circuit 202 →the electromagnetic lock or the solenoid 200 → GND and the electromagnetic lock or the solenoid 200 is driven. The electromagnetic lock or the solenoid 200 is connected to a collector or an emitter. Thus, the malfunction of the electromagnetic lock or the solenoid 200 at the time of short-circuit is prevented. Needless to say, the danger of the heat generation of the electromagnetic lock or the solenoid 200 or the like is prevented as well.
Patent JP-H0489453-A (JP)
Title: Separation and purification of tetracarboxylic acid
Inventor: TACHIBANA YAKUDO
IPC: C07C69/76
Filed: 1990-07-30
Abstract: PURPOSE:To carry out the subject separation and purification with high purity and in it high yield by converting 2,3,6,7-naphthalenetetracarboxylic acid and its alkali salts contained in a mixture of various kinds of naphthalenecarboxylic acids to methyl esters thereof and utilizing the difference in solubility of the resultant esters to a specified solvent. CONSTITUTION:After 2,3,6,7-naphthalenetetracarboxylic acid and its alkali salts contained in a mixture of various kinds of naphthalenetetracarboxylic acids and alkali salts thereof are converted to methyl esters thereof, the resultant reaction mixture is dissolved in a solvent (Chloroform, etc., is especially preferable) by heating. The resultant solution is cooled to precipitate and separate naphthalenecarboxylic acid methyl esters except 2,3,6,7- naphthalenetetracarboxylic acid tetramethyl ester so that the purity of the objective ester may be improved. The resultant preliminarily purified 2,3,6,7- naphthalenetetracarboxylic acid tetramethyl ester is dissolved in a solvent (furfural, etc., is especially preferable) by heating and subsequently cooled to precipitate 2,3,6,7-naphthalenetetracarboxylic acid tetramethyl ester, thus carrying out the objective separation and purification.
Patent JP-H1131093-A (JP)
Title: Database access system
Inventor: KIKUCHI HIROAKI
IPC: G06F12/00
Filed: 1997-07-10
Abstract: PROBLEM TO BE SOLVED: To reduce the mean access time to a database and to perform acceleration. SOLUTION: A dedicated CPU 1 for database management always accumulates the number of accesses to each database file, extracts databases DA, DC and DD which are highly frequently used among databases DA, DB,... DM which are placed on a disk 3 at an appropriate time and automatically copies them onto database copy areas on RAM memory 8 via a data link bus 7. Also, when a CPU 2 for general operation processing accesses databases, it preferentially accesses databases on the RAM. Since the CPU 2 does not have to perform database management and can devotes itself to general operation processing, it can reduce the decline of throughput that accompanies the replacement of a database.
Patent JP-H0644800-A (JP)
Title: Semiconductor memory device
Inventor: OKUGAKI AKIRA
IPC: G06F11/10
Filed: 1992-07-27
Abstract: PURPOSE:To provide the semiconductor memory device capable of improving the relief efficiency using the ECC system. CONSTITUTION:A memory cell array (600) is divided into plural small areas in column and row directions. In reading data, one bit memory cell is selected from the small areas arranged on different columns and rows in the array. The data read concurrently contain information bit and error check bit. Accordingly, the only data of one-bit memory cell are read out of one word line. Even though one word line fails, the possibility of the number of error bits contained in plural bit data concurrently read out being more than 2 bits can be reduced remarkably. Thus, the error detection and correction using the ECC system can be executed and the relief efficiency of the fault bit can be improved.
Patent JP-H06172916-A (JP)
Title: Manufacturing of stainless steel
Inventor: MOHAMATSUDO JIYABATSUDO NIAIET
IPC: C22C33/04
Filed: 1993-08-11
Abstract: PURPOSE: To economically produce a stainless steel with high efficiency by finely pulverizing the oxide of an alloy metal and a reducing agent, intimately mixing them, thereafter forming this mixture into an agglomerated form and adding it to a molten iron bath.  
     CONSTITUTION: The oxide of an alloy metal in a steel such as Cr, Mn, V, Ni, Co, Mo or the like is finely pulverized or gravitated and is intimtely mixed with a finely pulverized or granulated reducing agent, and this mixture is thereafter formed into an agglomerated form. As for the finely pulverizing or granulating, the maximum grain diameter is regulated to 1 mm, preferably to 75 μm. The oxide can be used in the form of an ore such as a chromite ore or the like. The quantity of the reducing agent is regulated, e.g. to at least about 0.4 times, preferably about 1.3 times the stoichiometric amt. by which the total oxides of Cr and Fe in the oxides are reduced. As the reducing agent, ferrosilicon, ferroalumina-silicon or the like are given. The agglomerated form is briquettes, pellets or the like and is treated at a relatively low temp. according to necessary to promote the solid phase reduction thereof, thereafter, the agglomerated body is added to a molten iron bath or is heated to melt together with solid iron so as to be alloyed. 
     COPYRIGHT: (C)1994,JPO
Patent JP-S6259714-A (JP)
Title: Mooring of multiply stretched float fence
Inventor: HATANO HITOSHI
IPC: E02B15/06
Filed: 1985-09-11
Abstract: PURPOSE:To prevent the diffusion of spilit oil, etc., by a method in which the float fences of at least one outermost row in a multiply stretched float are connectedly provided through a plurality of buffers to a stretching material, and this material is fixed to a mooring member. CONSTITUTION:A space supporter 4, e.g., rope, etc., is provided between the float fences in multiply stretched froat fences 1A, 1B, and 1C, and the float fence 1A of the outermost row is connected through buffer materials 5 to a stretching material 6. This material 6 is fixed through a mooring member to sea-anchors 8. The interval between the float fences can thus be kept constant all the time and so diffusion of spilled oil and turbid water can be effectively prevented.
Patent JP-H0857173-A (JP)
Title: Embroidery machine
Inventor: TAJIMA IKUO
IPC: D05B21/00
Filed: 1994-08-24
Abstract: PURPOSE: To specify a desired position while watching a pattern shown in an indication means, in the machine head which has not been embroidered from halfway. CONSTITUTION: An optional position is designated by a position designator 80 on a pattern indicated on a display 70 by an indication controller 60. A retrieval means 50 integrates stitch data in pattern data against the designated position and retrieves stitch data in which the distance from the integrated position is within a specified distance. Accordingly, one can designate a required position while watching patterns indicated on the display 70.
Patent JP-H0757291-A (JP)
Title: Optical pickup device
Inventor: TAKAHASHI MITSUTAKA
IPC: G11B7/135
Filed: 1993-08-11
Abstract: PURPOSE:To provide an optical pickup device of a high output type without lowering a cutoff frequency of a photodetector. CONSTITUTION:A luminous flux 19 outgoing from a semiconductor laser 1 is converged on an optical disk 21 by a condenser lens 5, and information is recorded. Further, the reflected luminous flux 20 from the optical disk 21 is separated by an optical separator 2, and the separated reflected luminous flux 20 is led onto the photodetector 12, and the change in the intensity of a reflected beam is detected and photoelectric converted, and the information on the optical disk 21 is detected. In such a case, a light reducing film 2a reducing the reflected luminous flux is provided in the reflected luminous flux 20 from the optical separator 2 to the photodetector 12.
Patent JP-H0988934-A (JP)
Title: Inner cable for push-pull control cable
Inventor: ONIMARU SADAHIRO
IPC: F16C1/20
Filed: 1995-08-04
Abstract: PROBLEM TO BE SOLVED: To provide an inner cable in which buckling strength and durability in a small bend radius can be reconciled with each other by the specific constitution composed of a conductor, side wires arranged around the conductor by being twisted in the prescribed direction and a specific synthetic resin layer to cover the side wires. SOLUTION: An inner cable A has the (1×7) constitution composed of a single conductor 1 arranged in the center, six side wires 2 arranged around the conductor and a synthetic resin layer 3 to cover the six side wires. Tensile strength of a synthetic resin material of the synthetic resin layer is not less than 34.3N/mm<2> , and elongation is not less than 40%. A wire diameter of the conductor 1 and the side wires 2 is 0.65mm to 0.90mm, and tensile strength is not less than 1520N/mm<2> . It is desirable that the synthetic resin layer 3 is formed so that its thickness is at least 0.3mm, and an outside diameter of the inner cable is set not more than 3.5mm, and it is desirable that the synthetic resin layer 3 is composed of a polyamide resin.
Patent JP-H0754191-A (JP)
Title: Partial plating device
Inventor: AMAMIYA TAKAO
IPC: C25D5/02
Filed: 1993-08-11
Abstract: PURPOSE:To execute partial plating with a high dimensional accuracy as a mask and an object to be plated are automatically aligned. CONSTITUTION:This partial plating device is constituted to apply plating to the plating regions of the object 14 to be plated corresponding to apertures 46 by covering the object 14 to be plated with the mask 12 and ejecting a plating liquid to the apertures 46 of the mask 12 from a nozzle 30. The mask 12 described above includes a mask supporting plate 40 and a mask plate 42 disposed movably within a required range relative to the mask supporting plate 40 on the mask supporting plate 40. The mask plate 42 is provided with engaging parts 47 engaging with the regulating parts formed on the object 14 to be plated. As a result, the easy exchange of the mask plate 42 for the mask supporting plate 40 can be carried out.
Patent JP-H0365439-A (JP)
Title: Stepless transmission operating device for power vehicle
Inventor: ISHIMARU TAKEYUKI
IPC: B60K17/10
Filed: 1989-07-31
Abstract: PURPOSE:To facilitate operation by deflecting and protruding operation arms for forward and reverse movement each other in a stepped shape so that they can rotate with fore and aft deflection to a unit frame, and protruding an engaging part so that they may be positioned at the lower part of the base side of the backward operation arm from the pivotally supporting part of the forward operation arm. CONSTITUTION:When an operation arm 20 for forward movement is pressed on to rotate, the transmission arm 27 of a hydraulic pump 9 is rotated from a neutral position to forward side (clockwise) through a lot 29, the pump 9 is rotated in a normal direction to rotate a motor 10 in a normal direction, and a driving wheel is drivingly rotated in a forward direction. When reverse driving is needed, the arm 20 is pressed off to return the arm 27 to a neutral position by the return force of a tension spring 34, stopping a vehicle. Then an ankle is rotated outward centering a heel on a step floor and an operation arm 23 for reverse movement, and the arm 23 presses down the engaging part 21 of the arm 20 to rotate it is pressed on, the arm 20 is reversed and the arm 27 is rotated outward from the neutral position, rotating the motor 10 in a reverse direction.
Patent JP-2000037097-A (JP)
Title: Wind power generator
Inventor: IWASAKI MASATAKA
IPC: H02J7/00
Filed: 1998-07-15
Abstract: PROBLEM TO BE SOLVED: To provide a wind power generator capable of charging a charger with high efficiency even under the condition of a breeze. SOLUTION: This power generator is provided with an AC power generator 3 having a plurality of coils, a volt meter 5 which measures induced electromotive force generated by the AC power generator, and a coil control means 6 which changes a connecting method of the coil of the AC power generator 3 to a charger 4 and its quantity. Thus, it is possible to charging the charger with high efficiency even under the condition of a breeze.
Patent JP-H1050161-A (JP)
Title: Sticking phenomenon restraining method for mercury switch
Inventor: KATADA FUMIO
IPC: H01H1/08
Filed: 1996-07-30
Abstract: PROBLEM TO BE SOLVED: To provide the sticking phenomenon restraining method for a mercury switch corresponding to the mechanism of its occurrence by making clear the mechanism of a sticking phenomenon for the mercury switch. SOLUTION: Since the sticking phenomenon between the stationary and movable contacts of mercury switch is caused by the deposit and growth to the surface of the stationary contact Pt 131 of Ni compounds 133 having passed through the amalgamation 120 of Ni, Rh, and Cu which are dissolved into Hg 105 from the movable contact, the deposit of the Ni compounds over to the surface of the stationary contact, is thereby restrained.  For this reason, a magnetic body is replaced with a non-nickel magnetic body, the surfaces of the movable contact and a spring made of stainless steel are plated with rhodium (Rh), impure elements are prevented from being mixed in the mercury switch, coating with a thin film made of Cr2 O3 , is applied to the surface of the stationary contact, and the quantity of copper plating is limited, so that the dissolution of Ni into Hg, and the deposit of the Ni compounds to the surface of the stationary contact Pt, are thereby prevented.
Patent JP-S6181175-A (JP)
Title: Overvoltage protecting circuit of one-element forward converter
Inventor: TSUMURA MITSUTSUNE
IPC: H02M3/28
Filed: 1984-09-25
Abstract: PURPOSE:To obtain a highly reliable overvoltage protecting circuit by connecting an overvoltage detector between the secondary side rectified and smoothed output and the gate of a thyristor, and shortcircuiting by a thyristor between the secondary side output windings of a transformer, thereby reducing the number of parts. CONSTITUTION:An one-element forward converter associated with an over voltage protecting circuit 1 turns ON and OFF a switching transistor Q1 by utilizing the induced voltage of the feedback winding P2 of a transformer T, converts a DC into an AC, rectifies and smoothes the output of the secondary side output winding S1 and outputs a DC voltage Vout. This circuit 1 has a series circuit of a diode D and a thyristor SCR inserted between the terminals of the secondary side output windings S1 and an overvoltage detector (Zener diode) ZD connected between the gate terminals of the SCR. Thus, when the output voltage becomes an overvoltage, the diode ZD is conducted to fire the SCr to shortcircuit between the windings S1.
Patent JP-H09109867-A (JP)
Title: Method for control of slip of wheel in anti-lock braking system for four-wheel-drive vehicle
Inventor: KARUROSU ATOCHIEEFUARESU
IPC: B60T8/1769
Filed: 1996-07-30
Abstract: PROBLEM TO BE SOLVED: To improve the stability and maneuverability of a vehicle at a braking process by setting a recovery flag for each wheel and limiting a reference speed when the time of the negative gradient of the reference speed lasts beyond a threshold value, all of four wheels are unstable and the time of the instability lasts beyond the threshold value of the sum of pressure drop times. SOLUTION: The reference speed of a vehicle is calculated at a step 10 form when seeped signals for each wheel, and a slip is calculated with an evaluation circuit 12, on the basis of the reference speed and the wheel speed signals, thereby generating a brake pressure control signal. Also, the evaluation circuit 12 makes judgment as to whether each wheel is stable or not, and sets flags 14. Then, when the pressure droop of each wheel begins, a counter 22 starts counting necessary increments and the counted values are added at a step 24. Thereafter, when the sum of the counted values exceeds a threshold value, the counter is made to output a signal. Furthermore, the gradient of the reference speed is obtained with a differentiator 28 and, then, the time when the gradient becomes negative, is measured with a counter 32.  When the counted value exceeds a threshold value, the counter 32 is made to output a signal. Also, when four recovery flags and set, the reference speed is limited.
Patent JP-H0618417-A (JP)
Title: Evaluating method of deep level defect in semiconductor crystal
Inventor: HOSHI RYOJI
IPC: G01N21/64
Filed: 1992-07-03
Abstract: PURPOSE:To provide an evaluating method which is capable of evaluating a deep level defect based on an oxygenic deposit imparting the deep-level luminousness of a D1-line or the like in a photoluminescence spectrum of a semiconductor crystal and, in its turn, evaluating a gettering capacity. CONSTITUTION:Photoluminescence intensity (deep-level PL intensity) Id and a band end PL intensity Ib attributable to a deep level in a semiconductor monocrystal are sought, while those of Id/Ib<x> (where, x is 0.5-1.0 value) showing relative deep-level density are sought as well. Moreover, the number of pieces of an oxygen deposit (BND) per unit volume is sought, and then relative deel- level density Id/(Ib<x>.BMD) is sought too, through which the evaluation of a deep level defect is performed.
Patent JP-S6183304-A (JP)
Title: Method of silk winding in direct reeler
Inventor: ARAI BUNICHI
IPC: D01B7/04
Filed: 1984-09-25
Abstract: PURPOSE:To stabilizer drying and winding of silk, by setting a specific timer when winding speed of a reeled silk is changed to high or low speed depending upon the amount of silk round a silk winding frame for drying. CONSTITUTION:In a drying winder wherein the raw silk 2 after reeling is spirally wound round the silk winding frame 9 of the dryer 1, drying air is blown upon the frame to dry the raw silk, and the raw silk is wound round the winder 20, the silk winding frame 9 is equipped with the silk detector 12, the winding speed of the winder 20 is changed to high or low speed depending upon the detected silk signal of the detector and the raw silk is wound. In the operation, the detected silk signal is necessarily in pulse series, when the pulse interval is time t, the winder 20 is driven at high speed only in an operation time of a timer whose operation time is set to t<T<2t, which starts by impressing a trigger pulse and the winder is driven at low speed after operation of the timer is over.
Patent JP-H07122885-A (JP)
Title: Superconducting magnetic shielding device
Inventor: YAMAMOTO TATSUYA
IPC: H05K9/00
Filed: 1993-07-20
Abstract: PURPOSE:To improve the deterioration of the shielding effect in a low-frequency region of providing a structure where an amorphous alloy layer having an angular magnetizing characteristic is arranged over the outer surfaces of a superconducting magnetic shielding container and a cooling means and a coil wound for applying shaking magnetic field. CONSTITUTION:An amorphous alloy layer is provided over the outer surface of an inner structure 1 comprising a superconducting magnetic shielding container and a cooling means. A coil is wound around the amorphous alloy layer in toroidal shape by many layers. Thus, an outer structure 2 is formed. The amorphous alloy in use is made to be the alloy having the angular magnetizing characteristic, e.g. Co-Fe-based amorphous alloy. A shaking magnetic field is impressed on the amophous alloy layer with the coil. A compensating coil 3 usually made of a copper wire or the like is arranged in an 8 shape at the edge of the opening of the superconductive magnetic shielding container. Thus, the excellent magnetic shielding is achieved in the environmental magnetic field.