baber/WOPTO huggingface dataset:
Patent JP-S57188646-A (JP)
Title: Lead free cutting steel and its manufacture
Inventor: YOSHIMURA TSUNEO
IPC: B22D11/108
Filed: 1981-05-14
Abstract: PURPOSE: To manufacture lead free cutting steel having superior properties of surface fatigue life, etc., while having superior ability being cut with a small amount of lead, by collecting more lead components at a billet surface layer part by electromagnetically stirring molten steel at the entrance of a mold in the horizontal direction.  
     CONSTITUTION: Molten steel M in a foundary ladle 1 is injected into a tundish 3 through a nozzle 2, and charged into a mold 5 from the charging port 4 of the tundish 3 to obtain a cast piece 6 by a continuous casting device. While a wire 8 of lead or lead alloy is supplied into molten metal at the entrance of the mold 5 through a guide pipe 9, the molten metal is stirred vigrously and electromagnetically in the horizontal direction by an electromagnetic stirrer 7. This stirring by a revolving magnetic field collects more lead components to the surface layer part of a billet 6 by centrifugal force to obtain a billet 6 which has the more content of the lead components at the surface layer part than at the center part, thus obtaining lead free cutting steel which contains less lead, has superior properties, and causes no pollution. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H10264379-A (JP)
Title: Ink-jet head
Inventor: KONNO OSAMU
IPC: B41J2/045
Filed: 1997-03-25
Abstract: PROBLEM TO BE SOLVED: To prevent a wiper and a nozzle plate from being abraded and solve the problem that ink is discharged unstably due to the adhesion of an abrasion scum (foreign article) to the periphery of a nozzle hole, by forming round an end face of the nozzle plate which is in touch with a wiper set in front of an ink-jet head to clean the nozzle plate. SOLUTION: When foreign matters such as dust and paper dust or the like adhere to the vicinity of a nozzle hole 18 of an ink-jet head, an ink 9 cannot receive a uniform force when discharged, and a discharge direction is instable. In order to prevent this, a wiper 3 is arranged in front of the ink-jet head to remove the dust, paper dust or the like foreign article adhering to a nozzle plate 5. The foreign matter is brushed and removed when the ink-jet head 2 regularly passes over the wiper 3. Although the nozzle plate 5 and wiper 3 tend to be gradually abraded because the wiper 3 rubs the nozzle plate 5 at the time of cleaning, an end face of the nozzle plate 5 to be in touch with the wiper 3 is formed round, thereby lessening the abrasion.
Patent JP-S59198014-A (JP)
Title: Buffer amplifier
Inventor: NAKAYAMA KAZUAKI
IPC: H03F3/343
Filed: 1983-04-25
Abstract: PURPOSE:To increase the input impedance by constituting the buffer amplifier with the 1st current mirror circuit and the 2nd current mirror circuit taking a mirror current of the 1st current mirror circuit as its current to be mirrored and taking a current to be mirrored of the 1st current mirror circuit as its mirror current. CONSTITUTION:The 1st current mirror consists of a diode D1, a transistor (TR) Q1, and resistors R1, R2, and the 2nd current mirror circuit comprises a diode D2, a TRQ2, and resistors R3, R4. Collectors and bases of the TRs Q1, Q2 are connected alternately with each other so that the mirror current of the 1st current mirror circuit is used for the current to be mirrored of the 2nd current mirror circuit and the current to be mirrored of the 1st current mirror circuit is used for the mirror current of the 2nd current mirror circuit. Thus, the buffer amplifier is constituted simply without using negative feedback, the input impedance is large, the distortion is low and excellent high frequency characteristic is attained.
Patent JP-S55165212-A (JP)
Title: Automatic controlling method for sheet thickness in hot rolling work
Inventor: OOTA MASAKADO
IPC: B21B37/72
Filed: 1979-06-07
Abstract: PURPOSE: To automatically control the product sheet's thickness to the aim value, and to improve the passableness of sheet in the rolling work, by continuously changing the aim value of the control on the run-out side of each rolling mill during the period from biting the rolled material until its tail passes through, in the hot rolling method in which the thickness monitoring and controlling system is added to the gaugemeter control system.  
     CONSTITUTION: In above method, the controlling system 11 for distributing the compensational input and the sheet passableness compensating system 10 for each mill are added to the conventional automatic sheet thickness controlling method. And, the controlling system 11 operates the compensational input for improving the passableness of sheet required for keeping the balance between the rolling reductions of each of rolling mills according to the set rolling schedule, against the aim thickness value of the control on the run-out side of each rolling mill of the gaugemeter control system 1 being set according to the rolling schedule calculated depending on the rolled material and the rolling specification. According to this operation, the compensational input is distributed to the controlling system for each rolling mill. Next, the compensating system 10 changes the aim value of the control for each rolling mill according to above distributed compensational input. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H01276725-A (JP)
Title: Method of forming trench in silicon substrate for extra-high density integrated semiconductor circuit
Inventor: MANFUREETO ENGERUHARUTO
IPC: H01L21/3065
Filed: 1989-03-23
Abstract: PURPOSE: To make a groove having a smooth wall surface and a round bottom surface in a silicon substrate with high reproductivity by a reactive ion etching method of using a mask in an etching atmosphere containing trifluorobromomethane. CONSTITUTION: For an etching mask 2 in the case of making a groove 3 in a silicon substrate 1, an SiO2 film which is made by the thermal decomposition of tetraethylorthosilicate is used. Reactive ion etching is performed by a three- pole type plane plate reactor. In the reactor, an etching mixed gas comprising trifuorobromomethane and nitrogen is used. In that case, the harmonics of two different frequencies are simultaneously applied for the generation and acceleration of reactive ions. Therefore, a groove having a slightly tilted smooth wall surface and a round bottom surface is made with good reproductivity. A large-capacitance groove capacitor is obtained therefrom.
Patent JP-H04348793-A (JP)
Title: Sewing machine
Inventor: OZAWA TETSUO
IPC: D05B69/20
Filed: 1991-04-04
Abstract: PURPOSE:To improve workability by storing change data concerning the pressing force of a presser spring to be operated to cloth pressing in relation to the condition of advancing sewing and changing the pressing force of the presser spring corresponding to the change data read out corresponding to the condition of advancing sewing. CONSTITUTION:A sewing machine frame 1 is equipped with the pressing force changing means of a presser spring 5, and this means is constituted to apply the prescribed pressing force through a cloth presser 4 to working fabric by moving an adjusting screw 28 downward through a rack 26 and a pinion 27 and compressing the presser spring 5 when an armature 32 of a servo solenoid 31 is protruded. The servo solenoid 31 is controlled by a control means (a) corresponding to the change data concerning the pressing force of the presser spring read from the storing means, which stores the change data in relation to the condition of advancing sewing, corresponding to the condition of advancing sewing. The pressing force of the presser spring is set so as to weaken the pressure of curved line sewing rather than pressure to press the cloth in straight line sewing.
Patent JP-S55164263-A (JP)
Title: Electrical insulating varnish for cloth pipe
Inventor: ISHIKAWA SADAO
IPC: C09D7/12
Filed: 1979-06-09
Abstract: PURPOSE: The titled varnish, capable of inhibiting the green rust formation on the contact surface with copper even under high temperature and humidity and hermetic conditions, and prolonging the like of an electrical apparatus, and comprising a small amount of a 1,2,4-triazole (derivative) as a green rust inhibitor.  
     CONSTITUTION: An electrical insulating varnish for a cloth pipe comprising 0.01W 3wt%., preferably 0.1W1wt%., a 1,2,4-triazole (derivative) of formula I of II (R is H, halogen, nitro, sulfonic acid, hydroxyl, carboxyl, lower alkyl or phenyl group) as a green rust inhibitor. An oil, alkyd, epoxyester, acrylic, polyurethane or silicone type may be preferred as the varnish. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H07277131-A (JP)
Title: Disposal method for gas generator for air bag
Inventor: NAKAZATO YUZABURO
IPC: B60R21/26
Filed: 1994-04-11
Abstract: PURPOSE:To provide a disposal method by which a large number of gas generators can be safely discarded without contaminating any environment. CONSTITUTION:A disposal method for a gas generator consists of such ways as heating a gas generator for operating it (a), cleaning the gas generator with water after the operation (b), parting the gas generator after the operation before and/or after the cleaning (c), chemically processing the water used for the cleaning (d), and selecting the parts, which are insoluble in the cleaning water, of the gas generator according to their materials (d).
Patent JP-H07275984-A (JP)
Title: Production of pulley of metal plate
Inventor: KANEMITSU TOSHIAKI
IPC: B21H1/04
Filed: 1994-04-11
Abstract: PURPOSE:To surely form an ear part with a suitable shape without generating an insufficient mass in a time of forming the ear part by pressing a sharp tip forming surface for forming the ear part onto a square corner of a rough drum wall, screw-slotting the corner part and bulging an annular ear part. CONSTITUTION:An ear part forming roller 44 has a sharp tip forming surface in an annular like. Then, while an upper die 46 and a lower die 47 are rotated together with a forming body A set between them, the sharp tip forming surface 45 is pressed on the corner part of rough drum wall 15. A pressing place of the sharp tip forming surface 45 to the corner part of the rough drum wall is the place corresponding within the range of enough wall mass of a base body 10 at the inner side from the corner part. Then, the sharp tip forming surface 45 is enough bitten into the corner part of the rough drum wall 15, and the corner part is gradually screw-slotted. Accordingly, the insufficient mass is not generated, the mass is enough extended outside, and the suitably shaped ear part 16 is formed.
Patent JP-H10270721-A (JP)
Title: Surface processing method of compound semiconductor
Inventor: HIROSE FUSAO
IPC: H01L21/338
Filed: 1997-03-25
Abstract: PROBLEM TO BE SOLVED: To provide a surface processing method upon forming a Schottky contact capable of obtaining an excellent Schottky characteristic on an InAlAs layer of a compound semiconductor. SOLUTION: In a manufacturing process of InAlAs/InGaAs HEMT, there are laminated with a predetermined film thickness on a semi-insulating InP substrate using an MBE technique an InAlAs buffer layer, an InGaAs channel layer, an InAlAs spacer layer, an Si doped InAlAs carrier supply layer, an InAlAs gate contact layer, and a high concentration Si doped InGaAs ohmic contact layer (1), and then there are formed a mesa and a source/drain electrode (2), and further than a recess is formed with recess etching (3). Etching processing is applied for the exposed gate contact layer with an aqueous citric acid solution to remove a surface oxide film or a plasma damaged layer produced on the surface (4), and a gate electrode is formed by deposition and lifting-off (5).  Thus, the surface can be cleaned without deteriorating a composition ratio of Al in the gate contact layer surface and hence an excellent Schottky characteristic can be obtained.
Patent JP-S55165253-A (JP)
Title: Polishing and refining device of sand
Inventor: INO TOMIO
IPC: B22C5/00
Filed: 1979-06-07
Abstract: PURPOSE: To stop revolution in different directions, polish sand and improve yield by combining an internal rotating body mounted with abrasive material at its cantilever shaft with the outer rotating body mounted with abrasive material within a cantilever horizontal type cylinder.  
     CONSTITUTION: The shaft 3 mounted to the side plate 2 of a casing 1 comprising placing a hollow cylinder horizontally is mounted to bearings 4 and the inside circumferential surface and inside lateral surfaces are coated with abration material 7 of grindstone or alloy. Next, a horizontal revolving shaft 10 is inserted into the central hole of the side plate 9 of the outer rotating body 8 and the abrasive material 11 of the same material at that of the abrasive material 7 is mounted by taking the specified spacing from the inner side of the rotating body 8. These causes the raw sand charged through a feed port 15 to be polished by the abrasive materials 7, 11 of the outer rotating body 8 and the internal rotating body 14 of a different revolving direction without breaking the sand. The sand is then moved together with powder dust by the air flow from an air suction port 15 and is discharged from a discharge port 5. At this time, the powder dust is sucked into a dust collector through conduit 16 and the remaining powder dust is suspended by blades 18 and is sucked into the dust collector. The sand is taken out through a takeout port 19. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S58189549-A (JP)
Title: Measuring cell of enzyme reaction
Inventor: NANKAI SHIROU
IPC: G01N27/28
Filed: 1982-04-28
Abstract: PURPOSE:To make possible a continuous measurement quickly and simply with good accuracy, by jetting a liquid to be inspected from the lower part to an action electrode detecting a specific substance by enzyme reaction and forming a cell construction provided with a vent hole and an outflow hole of the liquid to be inspected. CONSTITUTION:The platinum sputtered surface of an action electrode 20 fixed enzyme or coenzyme is brought into contact with a platinum plate lead 14 and is held in a fluororesin frame body 11 with a rubber packing 13. The body 11 and a nozzle part 9 are held in a resin holder 15 having a vent hole 16. A platinum opposite electrode 21 is provided at the tip end of the part 9 and also, an electrode system is constituted by the electrodes 21 and 20 providing an Ag/AgCl reference electrode 22 on a bottom face 12 of the body 11. A sample liquid is sent from a pipe 17 to a flow passage 18 of the part 9 and is jetted from the lower part toward the electrode 20 so as to form a liquid column 10 (shown by a broken line). The sample liquid is discharged quickly from a discharging flow passage 18' to an exit pipe 19 without staying in the passage 18'. In this manner, O2 is supplied sufficiently by contacting enough the column 10 with the atmosphere and quick and accurate measurement of enzyme reaction is made possible.
Patent JP-S61231876-A (JP)
Title: Dc/dc converter
Inventor: OKASHIN YAMATO
IPC: H02M3/155
Filed: 1985-04-05
Abstract: PURPOSE:To reduce a noise by selectively regulating a DC voltage obtained by N-times rectifying the oscillation output of an oscillator and a power source DC voltage and producing the voltage. CONSTITUTION:An oscillator 1 has transistors (Tr) Q1, Q2, and capacitors C1, C2, and oscillates in the frequency determined by a coil L1 and a stray capacity. A quadruple rectifier 2 has diodes D1-D3, and capacitors C4-C6, and outputs a DC voltage from a terminal T1. The connecting mid point voltage of resistors R7, R8 connected in series with a power source Vr is compared by a comparator 3 with the connecting mid point voltage Vs of the resistors R9, R10 connected in series with the terminal T1, and the Tr Q3 is driven by the Tr Q6. Thus, when the output voltage which is higher than the power source voltage Vcc is necessary, the oscillator 1 is oscillated to obtain quadruple-rectified output voltage. When a low output voltage is required, the oscillator 1 is stopped, and the voltage Vcc is divided to obtain the output voltage.
Patent JP-H11274959-A (JP)
Title: Mobile communication terminal
Inventor: WATANABE MASAHIKO
IPC: H04B1/16
Filed: 1998-03-20
Abstract: PROBLEM TO BE SOLVED: To accurately keep a fixed output signal level with respect to the wide range antenna input levels, regardless of the variance of amplifier gains by controlling the gains of plural amplifiers. SOLUTION: The antenna input levels are divided into three ranges. In a 1st range, the gain of a voltage amplifier 39 is fixed and an IC 37 is set at a fixed gain of 18 dB, when a high frequency block 43 has its normal gain of 20 dB. Then the gain of a power amplifier 33 is varied in steps of 2 dB, in response to the antenna input level, and an IC 32 is controlled at 62 to 10 dB. In a 2nd range, the gain of the amplifier 39 is varied in steps of 2 dB and the gain of the IC 37 is controlled at 16 to 2 dB. In a 3rd range, an attenuator 24 of the block 43 is turned on and operated at a gain lower its normal level by 20 dB. Then the amplifier 39 is varied in steps of 2 dB, and the IC 37 is controlled at 16 to 2 dB while the IC 32 is fixed at 10 dB. As a result, the input level of an A/D converter 40 is fixed at -10 dB with respect to the wide range antenna input levels.
Patent JP-S62231013-A (JP)
Title: Production of polyvinylidene fluoride based fiber
Inventor: NANJO SADAMI
IPC: D01F6/12
Filed: 1986-03-28
Abstract: PURPOSE:To obtain the titled fibers, having improved knot strength and useful for fishing lines, fishing nets, etc., by melt spinning a polyvinylidene fluoride based polymer and cooling the resultant yarn with a liquid having a higher specific gravity than that of the yarn. CONSTITUTION:A polyvinylidene fluoride based polymer is melt spun and the resultant yarn is cooled with a liquid, preferably a fluorocarbon based oil, to afford the aimed fibers. The above-mentioned polymer has preferably 1.0-1.3 intrinsic viscosity measured by using DMA as a solvent in 0.5g/dl concentration at 30 deg.C.
Patent JP-H04283818-A (JP)
Title: Word processor
Inventor: SHIMIZU NAOKI
IPC: G06F17/22
Filed: 1991-03-12
Abstract: PURPOSE:To switch character modification modes by pressing only one key by registering two kinds of character modification mode and providing the modification mode switching key. CONSTITUTION:A user indicates the start of modification mode setting on a keyboard 1 when changing a current modification mode. This indication is received by a CPU 4, which displays a modification mode setting picture on a display part 2. Then when the user presses a downward cursor key once, an item at the head of a setting item area is reversed and displayed. When the user inputs the indication for the end of the character modification mode setting on the keyboard, the CPU 4 stores the setting contents in a storage part 3, but they are stored in another storage area according to the contents of a mode state selection area. Consequently, the user can registers two kinds of different setting contents according to the mode state. Then the two kinds of modification mode are alternated each time the modification mode switching key 5 is pressed once.
Patent JP-H08241601-A (JP)
Title: Video light
Inventor: TSUKAMOTO KAIZO
IPC: G03B15/035
Filed: 1995-03-06
Abstract: PURPOSE: To prevent a battery of small capacity from being overloaded by turning on two lamps with the battery, in a video light system provided with two lamps. CONSTITUTION: A mounted battery is examined whether the battery naturally has large capacity or small one by checking whether the battery has a slit or not. If the mounted battery is recognized to be the one of the large capacity, a switch 2 is turned on, but that is turned off in the case of the small capacity. In the case where the battery of the large capacity is used and the switch 2 is turned on, each of the following states are capable, i.e., both of the lights (L1) and (L2) are turned on, either of them is turned on, or both of them are turned off, according to whether the switch 1 is turned on or off. In the case where the battery of small capacity is used and switch 2 is turned off, the lights (L1) and (L2) are inhibited from being turned on simultaneously.
Patent JP-H07260098-A (JP)
Title: Water leakage automatic detecting system
Inventor: SOTOZAKI HIROSHI
IPC: F17D5/06
Filed: 1994-03-17
Abstract: PURPOSE:To assuredly prevent any damage due to water leakage from occurrence by automatically detecting the water leakage from a piping. CONSTITUTION:A water leakage automatic detecting system is provided with water leakage detecting devices 2 each of which is provided to the joint part of a piping 1 and temporarily stores the water leakage therein and also detects the water leakage according to a water storing condition, a cutoff valve 5 to break a flow of water in the piping 1, and a receiving panel 8 which is connected to the water leakage detecting devices 2 and the cutoff valve 5, and operates the cutoff valve 5 so as to break the flow of water when any water leakage detecting device 2 detects the water leakage, and also controls to generate an alarm by an alarm generating device 10.
Patent JP-H06257588-A (JP)
Title: Land pump
Inventor: SAYAMA IWASAKU
IPC: F04D29/58
Filed: 1993-03-09
Abstract: PURPOSE:To enhance the safety of a land pump whose motor portion is cooled using a liquid flowing into the inlet port of a pump portion or a liquid flowing out of the outlet port of the pump and to efficiently and readily form a communicating hole by forming the motor shaft of the motor portion and the pump shaft of the pump portion as coaxial shafts, and forming the motor portion and the pump portion into a bar shape. CONSTITUTION:An intermediate wall 3 that the motor casing of a motor portion M and the pump casing of a pump portion P use in common is divided into a motor-side intermediate wall portion 3m and a pump-side intermediate wall portion 3p and a communicating hole 3mhd through which a liquid leaking from the pump portion P to the motor portion M at a mechanical seal 15 is forced to flow out is provided through that portion of the motor-side intermediate wall portion 3m which is opposed to the pump-side intermediate wall portion 3p.
Patent JP-S58189863-A (JP)
Title: Tape recorder
Inventor: MATSUKI SEIICHIROU
IPC: G11B15/675
Filed: 1982-04-30
Abstract: PURPOSE:To prevent a pressing plate from being returned even if the returning force is exerted on the plate, by driving a cassette pressing plate via a worm gear, and falling down a cassette on a reel stand, in loading the cassette. CONSTITUTION:The cassette A depresses a feeding roller 23 and a switch 25 is closed. Power is applied to a solenoid 5 and a gear 9 is meshed with a gear 13. Further, a reel driving motor 3 is also driven, the roller 23 is rotated with gears 33, 9, 13, a worm gear 12, a gear 15, a belt 16 and gears 17, 24, and the cassette A is carried. The cassette A contacts with a stopper 31a, and the control plate 31 is slid. Since the gear 15 is rotated counterclockwise and the plate 31 is pressed down, a pressing plate 27 is rotated around a shaft 26 counterclockwise. Thus, the cassette A is pressed down against a force of a spring 30 with a pressing plate 28 and a hub is inserted to reel stands 39 and 40.