baber/WOPTO huggingface dataset:
Patent JP-H03119312-A (JP)
Title: Optical shutter array and production thereof
Inventor: KOBAYASHI KAZUO
IPC: G02F1/03
Filed: 1989-10-02
Abstract: PURPOSE:To allow the formation of electrodes, which are formed embedded in a substrate having an electrooptic effect to a sufficiently large thickness so that the contact with terminal electrodes is easily and surely executed by constituting the electrodes of sheets. CONSTITUTION:The front and rear surfaces of respective bases 21, 21 exist on the planes common with the front and rear surfaces of the substrate and the respective sheets 22. The plural terminal electrodes 27 are provided on one surface of the respective bases 21, 21 so as to cover the one surface of the sheets 22 to form the electrodes. The respective terminal electrodes 27 are electrically connected individually to the respective sheets 22. The sheets 22 and terminal electrodes 27 on one base 21 side and the sheets 22 and terminal electrodes 27 on the other base 21 side are arranged to face each other on both sides of the substrate 23. The spacings between each one of the sheets 22 and terminal electrodes 27 facing each other constitute shutter parts A1 to An. The sections of the electrodes can be increased in this way and the registration of the terminal electrodes is facilitated at the time of formation of these electrodes. The contact between the electrodes and the terminal electrodes is thus surely executed.
Patent JP-S61136545-A (JP)
Title: Stabilized (meth)acrylamide polymer and aqueous solution thereof
Inventor: HAYASHI KOZO
IPC: C08L33/00
Filed: 1984-12-07
Abstract: PURPOSE:The titled copolymer or aqueous solution thereof which is prevented from undergoing thermal degradation or depolymerization and is suitable as a chemical agent for the tertiary recovery of petroleum, prepared by adding a phenylphosphonic acid to a (meth)acrylamide polymer or an aqueous solution thereof. CONSTITUTION:0.01-10wt%, based on polymer, at least one compound selected from among phenylphosphonic acids of the formula (wherein X is H or an organic group, R1 and R2 are each H, an organic group or an alkali metal) is added to a (meth)acrylamide polymer of a weight-average MW >=5,000,000 obtained by (co)polymerizing 50-100wt% (meth)acrylamide with 50-0wt% other copolymerizable vinyl monomers [e.g., (meth)acrylonitrile] or to aqueous solution containing 0.01-1.0wt% this polymer.
Patent JP-H03227361-A (JP)
Title: Resin composition and production thereof
Inventor: ABE HIROOMI
IPC: C08L71/12
Filed: 1990-09-28
Abstract: PURPOSE:To obtain a composition improved in mechanical properties, esp. impact resistance by melt kneading a polyphenylene ether resin with a polyolefin resin in the presence of a specific unsaturated compound. CONSTITUTION:The objective composition can be obtained by melt kneading (A) a polyphenylene ether resin [pref. poly(2,6-dimethyl-1,4-phenylene ether)] with (B) a polyolefin resin (pref. propylene homopolymer or a propylene-ethylene block or random copolymer) in the presence of (C) a compound having C1: nonaromatic carbon-carbon multiple bond and C2: at least one functional group selected from derived carboxyl groups, derived hydroxyl groups, derived amino groups, derived silyl groups, derived mercapto groups, derived sulfonic groups and oxirane group (pref. maleic anhydride or fumaric acid) and, pref. furthermore, (D) an elastomer.
Patent JP-S61138027-A (JP)
Title: Ceramic burner
Inventor: KURAMOTO SHINJI
IPC: F23D14/14
Filed: 1984-12-07
Abstract: PURPOSE:To effect a quiet, stable ignition by a method wherein high voltage discharge is flown to the projection of an earth plate integlated with a holding plate upon the ignition. CONSTITUTION:The high voltage discharge is flown from the tip of an electrode 18 for the ignition to the projection 17 of the earth plate 16 in order to ignite at the center portion of the burner by discharging upon the ignition rapidly. Upon the combustion, the projection 17 of the earth plate 16 is existed below the surface of a ceramic burner element 12 and the earth plate 16 is constituted of holding plate 14 integrally, therefore, heat given for the projection 17 is diffused from the earth plate 16 to the side of the holding plate 14 and the heat deformation of the projection 17 is prevented. According to this method, the quiet, stable ignition may be obtained. Further, in the case a frame rod for the flame detecting instead of the flame current may be effected surely for a long time.
Patent JP-S62118307-A (JP)
Title: Optical fiber
Inventor: TANAKA AKIRA
IPC: C08L23/20
Filed: 1985-11-19
Abstract: PURPOSE:To prepare optical fiber having superior heat resistance and economical advantage by constituting optical fiber having both core comprising polycarbonate and clad comprising poly-4-methylpentene-1 resin contg. 2-18wt% polyolefinic lubricating oil. CONSTITUTION:The optical fiber is constituted of core comprising polycarbonate and clad comprising poly-4-methylpentene-1 resin contg. 2-18wt% polyolefinic lubricating oil. Light A incident with an angle of incidence theta is reflected totally at the interface of core 1 and clad 2 and transmitted. Thus, optical fiber generating no noise is obtd. Suitable polymer for constituting the core 1 is polycarbonate having high transparency and high heat resistance, and preferred polycarbonate is one having ca. 1.2-2.1X10<4> number average mol.wt. being expressed by the formula (I) [where R is expressed by the formula (II) or (III)]. Suitable polymer constituting the clad is polymethylpentene-1 resin expressed by the formula (IV) admixed with polyolefinic synthetic lubrication oil.
Patent JP-H0789431-A (JP)
Title: Pneumatic type booster
Inventor: ANDO HIROMI
IPC: B60T13/56
Filed: 1993-09-20
Abstract: PURPOSE:To prevent the generation of noise by suppressing the discharge of the compressed air in a pressure varying chamber through the opened port part of a valve body, by installing a check valve which permits only the inflow of atmosphere into the valve body part, on the atmosphere opened port part inside the valve body. CONSTITUTION:The compressed air and the atmosphere which flow into a pressure varying chamber 5 are discharged into the vacuum source of an engine, passing through a pressure varying chamber communication passage 63, the second atmosphere valve 82, the second communication passage 59 of a plunger, center passage 57, the first communication passage 58 of the plunger, vacuum valve 75, vacuum passage 62, and a constant pressure chamber 4. In this case, even if the first atmosphere valve 76 is opened by the temporary inside deflection of the first valve body 73 for a control valve by the pressure of the compressed air, the outside discharge of the compressed air from an opened port part 29 can be suppressed, since a check valve 71 is installed on an opened port 29 side. Accordingly, the generation of the noise can be prevented, by the discharge of the compressed air passing through the opened port part 29.
Patent JP-H04138029-A (JP)
Title: Charge control method for nickel-hydrogen storage battery
Inventor: FUJIOKA KO
IPC: H02J7/10
Filed: 1990-09-26
Abstract: PURPOSE:To avoid unnecessary heat generation and improve the life characteristics of a battery to be charged by a method wherein, if the charging atmosphere temperature of the battery to be charged is lower than a predetermined value, charging is controlled and, if the charging atmosphere temperature is higher than the predetermined value, the charging current is cut off. CONSTITUTION:A DC power supply 1 supplies a power for charging a nickel-hydrogen storage battery 3. A switching means 2 is composed of a transistor which supplies and cuts off a charging current and so forth. A signal from a - V detecting circuit 5 which detects the decline of the voltage of the battery 3 which is charged and a signal from a temperature detecting circuit 6 which detects the temperature of the battery by detecting the resistance of a thermistor 4 are inputted to a charging controller 7 and the switching means 2 is controlled by the output signal of the charging controller 7. If the temperature of the battery is lower than a predetermined temperature, the charging controller 7 controls the charging with the - V detecting circuit 5 and, to the contrary, if the temperature of the battery is higher than the predetermined temperature, the temperature detecting circuit 6 is operated to output a signal which makes the charging stop and the switching means 2 is so controlled as to be turned off from an on-state.
Patent JP-H09100466-A (JP)
Title: Abradant composition for producing magnetic recording medium substrate and production of magnetic recording medium substrate
Inventor: SHIBATA MANABU
IPC: B24B37/00
Filed: 1995-10-04
Abstract: PROBLEM TO BE SOLVED: To obtain an abradant composition capable of providing low surface roughness required for densification of a magnetic recording medium and abrading a substrate at a much higher speed, having a specific viscosity, containing water, an abradant and a specific abrasion promoter. SOLUTION: This abradant composition for producing a magnetic recording medium carbon substrate comprises (A) 50-99.8wt.% based on the composition of water, (B) 0.05-30wt.% of an alumina abradant (one having 0.001-6μm average particle diameter and <=15μm maximum particle diameter) and (C) 0.05-20wt.% of an abrasion promoter composed of a compound (e.g. aluminum nitrate, aluminum sulfate or magnesium sulfate) forming an oxidative ion in the abradant composition and has 5-200cPs viscosity.
Patent JP-H07115776-A (JP)
Title: Power supply for vibration type compressor
Inventor: AKAZAWA NAOKI
IPC: H02J1/00
Filed: 1993-10-15
Abstract: PURPOSE:To improve the efficiency of a vibration type compressor by driving the compressor by the AC power supply of a frequency that the mean current of a current flowing to the compressor becomes minimum. CONSTITUTION:An averaging circuit 22 averages the current flowing to a vibration type compressor 1 detected by a current detector 20. A minimum current controller 24 gradually varies the oscillation frequency of an oscillator 21 at each predetermined time, and so variably controls the oscillation frequency of the oscillator 21 that the means current obtained from the circuit 22 becomes minimum. The AC voltage of a frequency that the mean current of the current flowing to the compressor 1 becomes minimum is automatically generated, and the compressor 1 is driven by its AC power. Accordingly, the compressor 1 is always driven by the AC power near a maximum efficiency. Thus, the efficiency of the compressor 1 is improved.
Patent JP-H1195458-A (JP)
Title: Composition for electric charge transferring layer and electrophotographic photoreceptor using the same
Inventor: OGOSHI KOJI
IPC: G03G5/05
Filed: 1997-09-24
Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor which enhances the image quality of a printed image, has improved printing resistance and a prolonged service life and is excellent in rapid optical responsiveness by using a polyether sulfone resin having specified repeating structural units and an amino resin. SOLUTION: The compsn. for an electric charge transferring layer contains a polyether sulfone resin having repeating units represented by the formula and an amino resin. The mol.wt. of the polyether sulfone resin is 20,000-900,000, preferably 30,000-250,000 as the wt. average mol.wt. (expressed in terms of standard polystyrene). In the case of <20,000, the wear resistance of a formed electric charge transferring layer is liable to deteriorate. In the case of >900,000, it is difficult to form a layer of a uniform thickness. The amino resin is may be obtd. by alkyl-etherifying an addition product of an amino material such as melamine or benzoguanamine to formaldehyde with 1-4C alcohol.
Patent JP-S63114056-A (JP)
Title: Nonaqueous solvent secondary battery
Inventor: SATO YUICHI
IPC: H01M4/583
Filed: 1986-10-31
Abstract: PURPOSE:To lengthen the charge-discharge cycle life and to make high rate discharge possible by supporting the negative active material comprising lithium or alkali metal mainly consisting of lithium in a specific carbon support. CONSTITUTION:A specific carbon material is crushed so as to obtain a specific particle size (for example, mean particle size of 10-15mum). The carbon powder is mixed with a binder in a specific ratio (for example, 98-80:2-20) and kneaded. The kneaded mixture is formed in a pellet or a sheet to obtain a porous support. Lithium or alkali metal mainly comprising lithium is supported in the carbon support to form a negative electrode, and the negative electrode is combined with other elements to assemble a secondary battery. The secondary battery has long charge-discharge cycle life and surely retains lithium or alkali metal mainly comprising lithium in the support. Therefore, high rate discharge is made possible.
Patent JP-H09102258-A (JP)
Title: Relay
Inventor: OKADO TAKASHI
IPC: H01H51/22
Filed: 1995-10-05
Abstract: PROBLEM TO BE SOLVED: To lower the height of a relay and besides, to constitute a two-circuit contact. SOLUTION: Two pieces of mobile contacts 2 with built-in permanent magnets 24 are arranged on both sides of a coil bobbin 1. The mobile contact plate 2 consists of an iron piece 23, a conductivity part 22, and a contact terminal 5. Applying voltage to the coil terminal 3 will generate magnetic force and magnetize an iron core 11, and draw the iron piece 23, that is, the mobile contact plate 2, and the motion will connect the contact terminal 5 with an normal open terminal 4 through the conductivity part 22. Stopping the voltage application will return the mobile contact plate 2 by the righting moment of a spring 7, and contact terminal 5 and the normal close terminal 6 will connect each other into initial condition.
Patent JP-S62119456-A (JP)
Title: Preparation of color chart
Inventor: KAWAI TAKEYUKI
IPC: G01N33/52
Filed: 1985-11-20
Abstract: PURPOSE:To simultaneously feed a pluvality of kinds of the specified and same color, by making frames with prints of high adhesivity of ink on a substrate, allowing drops of liquid of the same color with the specified color to be dripped from discharge nozzles of the constant delivery volume on to this frame and them to be diffused. CONSTITUTION:Frames 2 installed with a constant distance apart and height on a paper substrate 1 are made by a high ink adhesive method and set on a machine stage 4 of a constant delivery apparatus 3. The apparatus 3 accommodates tank 7 connecting vessels 5... with an air compressor 6 and ink headed in the vessels 5... under a constant pressure is allowed to be fed out in the specified quantity. Each of the vessels 5... is connected to nozzles 8 with conduits 10... that include electromagnetic valves 9 and by opening of these valves ink drops are dripped in a constant quantity from the nozzles 8.... The discharge nozzle is positioned above the frame 2 of the substrate 1 on the stage 4 and ink drops are dripped onto the frame 2 and a color chart is made by printing allowing are dripped ink to be diffused.
Patent JP-2001086735-A (JP)
Title: Booster circuit
Inventor: SUGURO AKIRA
IPC: G02F1/133
Filed: 1999-09-13
Abstract: PROBLEM TO BE SOLVED: To suppress ripples by performing series/parallel switching of a first clamp capacitor with a positive signal delivered from a two-phase signal generating circuit and performing series/parallel switching of a second clamp capacitor with an inverted signal so that a smoothing capacitor can be charged at all times. SOLUTION: A booster circuit comprises a two-phase signal generating circuit comprising transistors Tr1, Tr2, Tr8, Tr9, Tr10, Tr11, first and second clamp capacitors C1, C2, a first clamp circuit comprising transistors Tr3, Tr4, Tr5, a second clamp circuit comprising transistors Tr12, Tr13, Tr14, first and second rectifier circuits comprising transistors Tr6, Tr7, and a smoothing capacitor C3. A positive signal, outputted from the two-phase signal generating circuit is used for series/parallel switching of the first clamp capacitor, and an inverted signal is used for series/parallel switching of the second clamp capacitor. Consequently, the capacitor C3 is charged at all times.
Patent JP-H0788600-A (JP)
Title: Twin roll type continuous casting method and apparatus therefor
Inventor: TAKIHARA KAZUHIKO
IPC: B22D11/06
Filed: 1993-09-24
Abstract: PURPOSE:To provide a twin roll type continuous casting method and an apparatus therefor which can obtain a metallic thin sheet having fine crystal grain and excellent in workability and surface characteristic by rapidly solidifying and cooling a molten metal. CONSTITUTION:A rolling reduction roll 4 is arranged below the one side of a cooling roll 1a in one pair of the cooling rolls, and the cast thin slab 3 cast by the cooling rolls is introduced to the rolling reduction cooling roll 4 in contact with the cooling roll 1a, and at the time of passing the cast thin slab through a gap between the one side of the cooling roll 1a and the rolling reduction cooling roll 4, this cast thin slab is rolled at <=10% draft. Successively, the cast thin slab 3 runs in contact with the rolling reduction cooling roll 4, and is rapidly cooled in the temp. range of <=1300 deg.C at >=700 deg.C/sec cooling rate in this contact section. By this method, the fine crystal grain is obtd. without passing a hot rolling process, and the cast slab having excellent workability is obtd. and further, the metallic thin sheet having excellent surface poperty can be obtd.
Patent JP-H02145510-A (JP)
Title: Hair-fixing composition with high admissibility to hydrocarbon having excellent shampoo removing properties
Inventor: NATARII MORAFUSUKII
IPC: A61Q5/06
Filed: 1989-10-05
Abstract: PURPOSE: To obtain the subject composition comprising a copolymer composed of an alkyl (meth)acrylate, an N-substituted acrylamide and (meth)acrylic acid and capable of applying to aerosol using a hydrocarbon propellant and readily removing by shampooing. CONSTITUTION: This hair spray compound comprises 0.5-9wt.% copolymer composed of 0-60wt.% 3-12C alkyl (meth)acrylate, 15-75wt.% 4-10C N-substituted acrylamide, 10-90wt.% solvent (e.g. 1-4C straight-chain or branched chain alcohol) and 10-90wt.% hydrocarbon propellant (e.g. straight-chain or branched chain hydrocarbon). The film is transparent, glossy, soft and strong and has good antistatic properties and has excellent curl unchangeability without becoming tacky even under high humidity. At least 70% of carboxylic acid functional value in the copolymer is neutralized by 2-amino-2-methyl-1-popanol, etc.
Patent JP-H08101524-A (JP)
Title: Electrophotographic photoreceptor
Inventor: NIIMI TATSUYA
IPC: G03G5/147
Filed: 1994-09-29
Abstract: PURPOSE: To provide an electrophotographic photoreceptor having excellent wear resistance against repetition of use, low residual potential and fast response property by incorporating a high mol.wt. charge transfer material into a protective layer. CONSTITUTION: This electrophotographic photoreceptor has at least a photosensitive layer and a protective layer on a conductive supporting body. The protective layer contains a high mol.wt. charge transfer material. Further, the protective layer contains an org. and/or inorg. filler. The binder resin in the protective layer is in a cured state. Or, both of the high mol.wt. charge transfer material and/or the binder resin are in a cured state in the protective layer. The photosensitive layer consists of a charge producing layer and a charge transfer layer. Thus, the obtd. electrophotographic photoreceptor has excellent wear resistance against repetition of use, low residual potential and fast response property.
Patent JP-S62120127-A (JP)
Title: Digital-analog converter
Inventor: KOGA HIROSHI
IPC: H04B14/04
Filed: 1985-11-20
Abstract: PURPOSE:To eliminate higher harmonics by one kind of low pass filter by applying sampling frequency conversion to make the center frequency K.Fs in the distribution of the higher harmonics of signals different in sampling frequencies equal to each other. CONSTITUTION:A digital signal decoding means 1 outputs a signal suitable for DA conversion but does not apply direct DA conversion but applies DA conversion after the sampling frequency is converted. Signals having sampling frequencies fs2, fs3 (3fs2=2f2) are subject to thrice and double conversion respectively by the sampling frequency conversion means 2 to make the sampling frequency equal to each other. In converting the sampling frequency, the higher harmonics of the fundamental waves A, B are distributed at K(K=1, 2, 3...) multiple of the same sampling frequency Fs(=3fs2=2fs3) to restore the original signal while using one low pass filter to eliminate the higher harmonic components.
Patent JP-H11101876-A (JP)
Title: Method and device for estimating ground structure
Inventor: SATO YOICHI
IPC: G01V1/00
Filed: 1997-09-25
Abstract: PROBLEM TO BE SOLVED: To provide a method by which the thickness and quality of each constituent layer of a ground structure can be estimated accurately through simple operation and a device used for the method. SOLUTION: In a method for estimating ground structure, vibration detectors are not fixed at regular internals, but installed to arbitrary positions on a straight line along which no obstacle exists and the detectors can be installed, and the propagating speed of a wave is found by accurately measuring the distance between each detector through simple operation, and then, the thickness and quality of each constituent layer of a ground structure are estimated from the values of the distances and propagating speed.  At the time of finding the distance between each vibration detector, the opening/closing switch 3 of a cable 5 which is housed in a vibration generator 1 in a freely taking-out/in state and has the opening/closing switch 3 of an electric circuit is closed at the installed position of each detector 2 while the cable 5 is moved and the distance between each detector 2 is found by means of an operator 4 from the electric signal of the switch 3 and the pulse signal of a rotary encoder which is attached to the generator 1 and detects the movement of the cable 5.
Patent JP-S63117904-A (JP)
Title: Production of calcium phosphate
Inventor: SUMITA MASAYA
IPC: C01B25/32
Filed: 1986-10-31
Abstract: PURPOSE:To easily obtain fine particles of high-purity calcium phosphate without giving rise to troubles such as precipitation and solidification by allowing a soln. obtained by dissolving Ca(OH)2 in an aq. soln. contg. sugars, sugar-alcohols, or polyhydric alcohols to react with phosphoric acid. CONSTITUTION:Water is added to >=1 kind among sugars, sugar-alcohols, and polyhydric alcohols such as glucose, fructose, galactose, maltose, saccharose, mannose, sorbose, ribose, xylose, arabinose, lactose, sorbitol, mannitol, glycerin, and erythritol to prepare 10wt% aq. soln., and Ca(OH)2 or CaO is charged into the soln. to obtain a Ca(OH)2 soln. with increased solubility. Phosphoric acid diluted, as required, with water to an appropriate concn. is added to the soln. to obtain the Ca/P ratio corresponding to the composition of the desired product and allowed to react with the above-mentioned components, and the fine particles of the desired high-purity calcium phosphate such as hydroxyapatite, fluorapatite, calcium tertiary phosphate, etc., are obtained.