baber/WOPTO huggingface dataset:
Patent JP-H0470910-A (JP)
Title: Automatic voltage controller
Inventor: KORENAGA HITOSHI
IPC: G05F1/14
Filed: 1990-07-05
Abstract: PURPOSE:To improve the voltage control accuracy by switching the taps of plural boosting transformers with tap switches in the prescribed order so as to select each tap at one time. CONSTITUTION:When a drop pulse DP is outputted from an anti-time limit timer 13, a flip-flop 24 switches a switch circuit 23 to connect a common connection terminal 23c of the circuit 23 to a switch connection terminal 23b. As a result, a drop pulse DPb is applied to a boosting transformer 2B with tap switch and the tap of this transformer 2B drops by a step. Then the output voltage of the transformer 2B drops by a step. Therefore the output voltage levels of the boosting transformers 2A and 2B with tap switches are controlled so that the output voltage applied to a system 3 is coincident with the set value VR of the system voltage. Then the fluctuation of the system voltage is reduced and the voltage control accuracy is improved.
Patent JP-H1125461-A (JP)
Title: Optical disk and its recording and reproducing device
Inventor: YONEZAWA SEIJI
IPC: G11B7/24082
Filed: 1997-07-01
Abstract: PROBLEM TO BE SOLVED: To accurately record and reproduce high densified information data by disposing a land area and a groove area alternately both in the radial direction and in the track direction and disposing a data area composed of the land areas and the groove areas in each round of the track and a servo area alternately. SOLUTION: The land area and the groove area are alternately disposed in both the radial direction and the track direction on the track(s) formed in a spiral or concentric circular pattern on an optical disk to be recordable of information. The data area D composed of the land areas and the groove areas in each round of the track 1 and the servo area S are disposed alternately by 200-4000 without limiting to a ratio in length. Information of track addresses, etc., can be recorded by wobbling walls of the groove L in the radial direction of the disk. By this method, a beam spot is moved to follow the track center accurately without generating any track offset so as to obtain an exact clock signal, and hence high density recording and reproducing is feasible.
Patent JP-H0225268-A (JP)
Title: Detection of run-out
Inventor: ONISHI HIROKAZU
IPC: B22D37/00
Filed: 1988-07-15
Abstract: PURPOSE:To surely detect the run-out in a suction casting method, etc., by continuously detecting the molten metal surface height in a furnace at the time of pouring and detecting the run-out in accordance with the detection of the abnormality in the fall of the molten metal surface. CONSTITUTION:The means for detecting the molten metal 4 surface height such as IR distance meter 14 is provided to the upper part of the side wall of the melting furnace 2 and is connected to a vacuum pump 11. The molten metal 4 in the furnace 2 is sucked and poured into a cavity 9 through a stoke 13 when the pressure in the chamber is reduced by the vacuum pump 11. The fall of the molten metal surface ceases when the molten metal is filled in the cavity 9. Detection and decision are made that the pouring amt. exceeds the volume of the cavity 9 from the fall of the continuously detected fall of the molten metal surface height when the run-out arises at this time. The distance meter 14 stops the vacuum pump 11 immediately in this way. The run-out amt. is, therefore, minimized and the damage of the casting device by the run-out molten metal is prevented.
Patent JP-H0621919-A (JP)
Title: Transmitter/receiver for privacy telephone system
Inventor: OGIWARA TAKASHI
IPC: H04K1/02
Filed: 1992-07-03
Abstract: PURPOSE:To reduce the residual that is caused by a fact that an adaptive echo canceler is unable to follow a sudden change of attenuation value on a transmission line in a short period with a privacy telephone system which superposes the noises on the transmitted signals to transmit these signals as the privacy telephone signals through a transmitter and extracts the voice signals out of the privacy telephone signals through a receiver with reference given to the noises via the echo canceler. CONSTITUTION:A transmitter outputs the signal obtained by adding together the transmitting noise signal produced by a transmitting noise generating circuit 202, the monitoring signal generated by a monitoring signal generating circuit 204, and the transmitting voice signal via an adder circuit 204 as a privacy telephone signal. Meanwhile a receiver reproduces the level of the monitoring signal extracted by a BPF circuit 223 through a level reproducing circuit 225, multiplying the reference noise signal produced by a reference noise signal generating circuit 227 by the monitoring signal based on its level, and uses the output signal of the multiplication as a reference signal of an adaptive echo canceler 229.
Patent JP-S5967350-A (JP)
Title: Aluminum material
Inventor: SHIKADA YUKIO
IPC: C22C21/00
Filed: 1982-10-08
Abstract: PURPOSE:To obtain an Al material having a hydrogen content below the solubilizatonlimit in the solid phase, contg. Sb, and useful as metal for casting a high toughness Al casting. CONSTITUTION:An ingot having a composition of an Al-7%Si-0.3%Mg alloy (JIS AC4C) known as 356 alloy in USA is melted, and 0.05-0.8wt% Sb is added. At the same time, the molten metal is treated at 700-800 deg.C in vacuum under 10<-4>-10<-1> Torr pressure to regulate the hydrogen content to below the solubilization limit in the solid phase. The resulting Al material is remelted at 700- 800 deg.C, preferably 720-750 deg.C. Since the molten Al material absorbs no hydrogen independently of the relative humidity of the remelting atmosphere, agitation and agitation time during the remelting, no pinholes are formed in a casting. Accordingly, the resulting casting can be used as a high toughness structural material.
Patent JP-H0927975-A (JP)
Title: Optical cross connect device
Inventor: KAWAKAMI WATARU
IPC: H04B10/291
Filed: 1995-07-12
Abstract: PROBLEM TO BE SOLVED: To reduce number of optical devices and an optical loss and to attain economy and high performance by modulating a stimulated light source for an optical signal amplifier with an identification signal, demodulating and detecting the signal without the use of a light source exclusive for monitor light and an optical multiplexer demultiplexer. SOLUTION: An optical signal from an input terminal IN is given to an optical switch section 12 via an optical isolator 21a and an optical demultiplexer 22a of a monitor arrangement section 41, amplified by an optical amplifier medium 24 of a monitor arrangement section 42, and outputted to an output terminal OUT via an optical multiplexer section 22b and an optical isolator 21b. On the other hand, a stimulated light for an optical amplifier medium 24 from a light source 25 is modulated by a modulation pattern different from each channel. Furthermore, the light is detected and demodulated by a receiver 23 via the optical amplifier medium 24, the optical switch section 12, and the optical demultiplexer 22a of the monitor arrangement section 41 from the optical multiplexer 22b to specify from which light source the light is received.  Thus, the connection state of the optical switch section is monitored without use of exclusive monitor light source and optical demultiplexer. Moreover, number of optical devices is reduced, the optical loss and the branch insertion loss are reduced.
Patent JP-H0517794-A (JP)
Title: Lubricant composition
Inventor: HASHIMOTO KATSUMI
IPC: C10N30/06
Filed: 1991-07-17
Abstract: PURPOSE:To obtain a lubricant composition excellent in abrasion resistance and hydrolysis resistance by blending a base oil mainly composed of an ester- based compound with a specified phosphorus-based compound and an amine compound. CONSTITUTION:A lubricant composition obtained by blending (A) a base oil mainly composed of an ester-based compound such as trimethylolpropane tert-2- ethylhexanoate, pentaerythritol tetra-2-ethylhexanoate or dioctyl adipate with (B) a phosphorus-based compound of formula I, II or III [R<1> and R<2> are 3-30C (cyclo)alkyl or 6-30C aryl; R<3>-R<5>, R<9>, R<10>, R<12> and R<13> are H or 3-30C (cyclo) or 6-30C aryl; R<6>-R<8> and R'' are 2-4C alkylene;), (q) and (r) are 0-2; X is 1-20], e.g. dilaurylhydrogen phosphite and (C) an amine compound of formula IV (R<14>-R<16> are same as the above-mentioned R<3>) e.g. cyclohexyldodecylamine.
Patent JP-S57101581-A (JP)
Title: Automatic stopping circuit for dc motor
Inventor: KOUNO TAKANORI
IPC: H02P3/08
Filed: 1980-12-15
Abstract: PURPOSE:To improve the detecting performance of an automatic stopping circuit for a DC motor by detecting the variation in a load as a voltage, converting the voltage into two signals having level difference, applying it to two integrating circuits of different time constants and detecting the variation in the load by inverting the output of both circuits. CONSTITUTION:In a drive circuit for a motor surrounded by a broken line, the variation in the load of a motor M is detected by the variation in the voltage (V-IRS) of a battery ES. A battery voltage is converted by dividing resistors R1-R3 into two voltages, which are inputted to integrating circuits respectively formed of R4, C1 and R5, C2. The time constant of the former integrating circuit is set to smaller than that of the latter integrating circuit. When a variation occurs at the load, a currentIwill vary so that the potential at the point m' becomes lower than that at the point n', and accordingly the output of a comparator CO is inverted. A flip-flop FF breaks the transistor T of the drive circuit with this inverted output.
Patent JP-S6236621-A (JP)
Title: Objective lens for optical pickup
Inventor: MORISHITA ICHIRO
IPC: G02B13/00
Filed: 1985-08-09
Abstract: PURPOSE:To obtain a small-sized and lightweight objective lens corrected at its spherical aberration and since condition and optimized to a pickup by constituting of the lens of three lenses, i.e. a double-convex lens and negative and positive meniscus lenses, and setting up specific conditional inequalities among the radiuses of curvature, refractive indexes and focal distances. CONSTITUTION:The objective leans is constituted of three lenses, i.e. the double- convex lens and the negative and positive meinscus lenses, and the conditional inequalities I, II are set up among the radiuses (r) of curvature, the refractive index (n) and the focal distances (f). The inequality I corrects the spherical aberration by using the radius r2 of curvature of the adhered surface between the 1st and 2nd lenses and the inequality II corrects the since condition by using the radius r5 of curvature on the side opposed to a disk D of the 3rd lens to eliminate coma-aberration as low as possible. The radius r4 of curvature on the inside of the 3rd lens determines the opening ratio of the objective lens to optimize the working distance of the lens. Thus, the small-sized and light- weight objective lens corrected at the whole aberration of the optical system in a addition to the correction of the spherical aberration and since condition and highly accurately optimized to an optical pickup can be obtained.
Patent JP-H0737019-A (JP)
Title: Optical reader
Inventor: HASEGAWA KAZUO
IPC: G06K7/00
Filed: 1993-07-16
Abstract: PURPOSE:To provide an optical reader which can satisfactorily reduce the influence of noises superposed on the bar code reading signals and can perform the accurate binarizing processing. CONSTITUTION:In an optical reader including a photoelectric sensor part 1 which produces the analog signals through the scanning/reading operations of bar codes, an amplifier part 2 which amplifies the analog signals, a signal converter part 3 which applies the A/D conversion to the amplified analog signals, a temporary storage part which temporarily stores the converted digital signals, and a binarizing part 8 which binarizes the digital signals read out of the temporary storage part, the photoelectric sensor part 1 performs plural scanning/reading operations every time a bar code is read, the temporary storage part stores in sequence the digital signals read by the scanning/reading operations in different memory areas 61-63. When all digital signals are stored in the storage part, these signals are transmitted from the areas 61-63 and added together.
Patent JP-H0341144-A (JP)
Title: Ethylene/vinyl acetate copolymer emulsion
Inventor: TANAKA YASUJI
IPC: C08L31/04
Filed: 1989-07-07
Abstract: PURPOSE:To obtain the title emulsion whose viscosity changes little with temperature and which is useful for an adhesive, a coating material, etc., by mixing a specified amount of a specified ethylene/vinyl acetate copolymer emulsion with a specified amount of polysodium acrylate and/or polyammonium acrylate. CONSTITUTION:This emulsion comprises 100 pts.wt. ethylene/vinyl copolymer emulsion produced by using PVA as an emulsion stabilizer and having an ethylene content of 1-45wt.%, a vinyl acetate content of 55-99wt.% and a content of a copolymerizable vinyl compound (e.g. vinyl versatate) of 0-30wt.% and 0.05-5 pts.wt. polysodium acrylate and/or polyammonium acrylate.
Patent JP-S6070205-A (JP)
Inventor: MIHARA YUZURU
IPC: E01C9/08
Filed: 1983-09-27
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-H0347647-A (JP)
Title: Continuous production of sand mold for casting
Inventor: NAGA HIROKAZU
IPC: B22C1/22
Filed: 1989-07-11
Abstract: PURPOSE:To prolong a pot life by introducing a part of a resin coated sand consisting of a binder soln. contg. a phenolic resin, etc., and a solvent, and sand into a metallic mold for sand mold casting and adding the solvent for the binder to the remaining part of the above-mentioned resin coated sand by a method for introducing a hardener therein. CONSTITUTION:A part of the resin coated sand consisting of the binder soln. contg. the phenolic resin, polyisocyanate compd. and solvent and the sand is introduced into the metallic mold for sand mold casting and thereafter, the hardener is introduced into the metallic mold. The solvent for the binder is properly added to the remaining part of the above-mentioned resin coated sand. The flowability of the resin coated sand right after the prepn. thereof is nearly assured. The resin coated sand is, therefore, introduced at the sufficient packing density into the metallic mold and the high-strength and mold for casting is produced by curing. Since the pot life of the resin coated sand is greatly extended in this way, the high-strength sand mold for casting is easily, economically and continuously mass produced.
Patent JP-H106103-A (JP)
Title: Spindle structure of machine tool
Inventor: SAWADA KIYOSHI
IPC: B23B19/02
Filed: 1996-06-18
Abstract: PROBLEM TO BE SOLVED: To provide a spindle structure to increase the rotating speed of a tool up to the limit of the mechanical strength of a rotary tool itself. SOLUTION: A rotary tool 4 comprising a tip reduction part 4a forming a cutting edge; a body part 4b; and a turbine blade 4c is integrally constituted. A thrust bearing consists of a static pressure air bearing consisting of an air exhaust nozzle 7 and an intake passage 11 supports the end face of the rotary tool 4. A radial bearing consists of the static pressure bearing consisting of a number of air injection nozzles 14 and supports the outer peripheral surface of the rotary tool 4. Drive air is blown against the turbine blade 4c through an air exhaust nozzle 20 which serves as an air nozzle to rotate the rotary tool 4 at a high speed. Since a no machine element rotated together with the rotary tool 4 is provided and the inertia mass of a body to be driven is decreased, high speed rotation is practicable.  Further, since the body to be driven integrally consists of only the rotary tool 4, high speed rotation is executed at the limit of the mechanical strength of the tool itself.
Patent JP-S6423895-A (JP)
Title: Production of adipic acid
Inventor: HORIGUCHI SADAYOSHI
IPC: C12P7/44
Filed: 1987-07-17
Abstract: PURPOSE:To efficiently produce adipic acid useful as a raw material for monomers or high polymers or plasticizers, by reacting a specific microorganism belonging to the genus Arthrobacter with cyclohexanol, cyclohexanone or a mixture thereof. CONSTITUTION:Arthrobacter.oxydans AK65-6 (FERM-P No. 9430) or Arthrobacter.oxydans AK36-4 (FERM-P No. 9429) is cultivated in a culture medium containing a carbon, nitrogen sources, etc., at 24-33 deg.C and 6.8-8.2. After completing the cultivation, microbial cells are collected and converted into microbial cell suspension or immobilized microbial cells to carry out reaction at 24-35 deg.C and pH7.8-8.0 in a buffer or solution at an adjusted pH using cyclohexanol, cyclohexanone or a mixture thereof as a substrate and afford the aimed adipic acid.
Patent JP-H0342999-A (JP)
Title: Silencing device for radiation noise in opening section
Inventor: YOSHIMURA YASUSHI
IPC: G10K11/16
Filed: 1989-07-10
Abstract: PURPOSE:To realize a radiation noise silencer in an opening section not hindering the passing of a person or a commodity by generating an additional sound having opposite phase and the same sound pressure to a noise radiating from an opening section based on a signal from a noise information detection means and an error microphone. CONSTITUTION:A sensor microphone SM is arranged to the intake side of a ventilation port 14 and detects a noise radiating from a machine 10 via the ventilation port 14 and outputs its detection signal to a controller 20. A speaker S is arranged in the vicinity of the outlet of the ventilation port 14 and generates additional sound to cancel the noise radiating from the ventilation port 14 with a driving signal from the controller 20. An error microphone EM is arranged to a prescribed position in a direction where the noise radiates from the ventilation port 14, detects a sound wave after the additional sound from the speaker S and the noise are interfered with each other and outputs its detection signal (error signal) to the controller 20. The controller 20 outputs a signal with a prescribed amplitude and phase characteristic to the speaker S radiating the silencing sound wave so as to minimize the error signal E.
Patent JP-S6068085-A (JP)
Title: Method for stripping paint
Inventor: MIURA TETSUO
IPC: B05D3/14
Filed: 1983-09-26
Abstract: PURPOSE:To strip a paint from only the part necessary for spot welding in short time by pressing the end of a carbon electrode rod to the painted part on a metallic surface, connecting electrodes to both ends of said electrode rod and passing current thereto. CONSTITUTION:A device is constituted of a metallic plate 1 spotwelded to a metallic member 3 at a part 2, the painted part 4 of the plate 1, a carbon electrode rod 5, a holder 6, an output power source 7 to supply current to the electrode rod and current cables 8, 9. When the output from the power source 7 is fed to the rod 5, the rod 5 acts like a heater and heats up red hot, thereby beginning to melt the paint. When the holder 6 is moved along the circumference of said welded part 2, the paint is thoroughly stripped from only the necessary part. the stripping of the paint from only the necessary part of the plate 1 is made possible by the above-mentioned method, by which the damaging of the plate 1 and the careless damage of the surrounding paint are obviated.
Patent JP-H05337966-A (JP)
Title: Production of fiber reinforced composite material
Inventor: MARUI TAKETOSHI
IPC: B29C39/10
Filed: 1992-06-11
Abstract: PURPOSE:To obtain a fiber reinforced composite material enhanced in dimensional accuracy and excellent in appearance by arranging a molding intermediate base material obtained by impregnating a fiber with an uncured resin to a mold at a predetermined position and molding the same under heating in such a state that a hermetically closed bag member containing a foaming agent is present inside the base material. CONSTITUTION:Unidirectional carbon fiber epoxy prepregs are laminated to be wound into a cylindrical shape. Next, a foamable epoxy resin is put in a natural rubber tube and both ends of the tube are closed and the cylindrical wound prepreg laminate is set to a mold in such a state that the closed tube containing the foamable epoxy resin is present inside the prepreg laminate to be molded under heating. By this constitution, no high pressure injection equipment is required and a skin part and a core part can be simultaneously molded by a usual mold and, by accurately performing the transfer molding of the surface shape of a mold, a fiber reinforced composite material having high dimensional accuracy and excellent in appearance can be molded.
Patent JP-S5965571-A (JP)
Title: Ignition distributor for internal-combustion engine
Inventor: FUJIMOTO MASAHIRO
IPC: F02P7/067
Filed: 1982-10-08
Abstract: PURPOSE:To screen magnetic flux of a signal generator in a simple construction by fixing a screening board to screen the leaked magnetic flux from an ignition coil inside a distributor housing and fitting the signal generator at the screening board. CONSTITUTION:A cylindrical screening board 17 is fixed in a distributor housing 11 with screws 20 to make a shelter space A to screen the leaked magnetic flux from an ignition coil 6. Each signal generator 18, 21 of the corresponding signal rotors 15, 16 are fixed to the screen board 17 by screws 19 respectively. When a shaft 12 is rotated, an ignition signal is generated at the first signal generator 18 by the first signal rotor 15 and this ignition signal is sent to an ignition coil 6 via an igniter 8 and at the ignition coil 6, high voltage is induced by intermittence of the ignition signal. Since the leaked magnetic flux is screened by the screening board 17, the first signal generator 18 is free from the influence of the leaked magnetic flux B from the ignition coil.
Patent JP-S5879244-A (JP)
Title: Controller for copying machine
Inventor: NOGUCHI KOUICHI
IPC: G03G21/00
Filed: 1981-11-05
Abstract: PURPOSE:To take proper measures by providing means for discriminating whether the density of an original is read or not and displaying the failure in reading of the density of the original if the density of the original fails to be read. CONSTITUTION:Prior to operation for exposure of an original image to a photoreceptor, the density of the original is detected by the output of a photoamplifier 1 which is density detecting means. The output of the amplifier 1 is inputted to a positive peak holding circuit 5 and a negative peak holding circuit 8, and is made into the signal proportional to the sum of the max. value and min. value of the density of the original, that is, the signal proportional to an average value by an inverting adder 9 and an inverter 10. Said signal is outputted as a control signal. On the other hand, an RS flip-flop 15 is provided as a circuit for discriminating whether the reading of the density of the original is finished or not, and when it is judged that the density information of the original fails to be read, a reading failure signal is emitted, by which a display is lighted and the caution for copying is announced.