baber/WOPTO huggingface dataset:
Patent JP-2000209780-A (JP)
Title: Device for switching power supply without short break
Inventor: OSHIKIRI KEIICHI
IPC: H02J9/06
Filed: 1999-01-07
Abstract: PROBLEM TO BE SOLVED: To smoothly switch two power sources to each other in a short time without causing any abrupt change in phase by providing a synchronization control circuit which synchronizes first and second power sources with the output of a second converter which converts the DC output of a first converter into an alternating current. SOLUTION: When a power source A1 is switched to another power source B2 without short break, the alternating current from the power source B2 is converted into a direct current by means of a first converter 6 and the direct current is converted into an alternating current by means of a second converter 7. The converted alternating current is operated by means of a synchronization control circuit 11 so that the current may be synchronized to the power source A1 which supplies electric power to load equipment 3. Then a third mechanical switch 9 is turned on and, at the same time, a first mechanical switch 4 is opened and power supply to the load equipment 3 is only made from the second convert 7.  Therefore, independent asynchronous power sources can be switched to each other without short break and, since no abrupt change occurs in the phase and voltage, stable power supply can be made to important equipment.
Patent JP-S5593972-A (JP)
Title: Total conversion system for wind and marine energy by hydraulic engine for power generation
Inventor: WATANABE YOSHINOBU
IPC: F03B13/12
Filed: 1979-01-10
Abstract: PURPOSE: To obtain a total conversion system in which the sea water is stored in a tank situated as a high position by labile energy possessed by wind, tidal current, and surge and converted into electric energy by a hydraulic engine at the lower part, while the desalination of the sea water is performed to supply fresh water.  
     CONSTITUTION: Natural energy possessed by tidal current, surge, and wind is converted into rotary or reciprocal movement by the converters b, c, d, and e to work a rotary pump or reciprocal pump, by which the sea water is pumped up to a tank or a basin f through a pipe and the energy is converted into potential energy. pressurized sea water is supplied from the tank or basin f to the power generating hydraulic engine a provided at the lower flat position to produce power which is, in turn, is utilized in the operation of the sea water desalination equipment g by an ion exchange membrane method. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S5699278-A (JP)
Title: Fluorescent substance
Inventor: TERAJIMA KENJI
IPC: H01J61/44
Filed: 1980-01-14
Abstract: PURPOSE: To obtain a fluorescent substance having excellent luminescent efficiency at high temperatures and capable of emitting red color light by ultraviolet rays from an Eu-activated rare earth titanate of a specific composition.  
     CONSTITUTION: The oxides of Ln (Y, Gd, or La), Eu, and Ti as the constituents of a fluorescent substance, or their salts which are easily oxidisable are weighed in given proportions, ground sufficiently in a ball mill, and then baked at 800W 1,400°C for 0.5W6hr to obtain an Eu-activated rare earth metal titanate fluorescent substance of the formula (Ln 1-x Eu x ) 2 O 3 .nTiO 2  (where Ln is one or more of Y, Gd, and La, 0.01≤x≤0.2, and 0.8≤n≤2.2).  
     EFFECT: The fluorescent substance thus obtained has a white body color and excellent temperature dependency similar to or higher than that of vanadic acid-based ones. Said fluorescent substance is capable not only of being excited by an ultraviolet ray of 2,537Å but also of effectively emitting light upon excitation of 3650Å. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H06199045-A (JP)
Title: Photo recording medium
Inventor: YOSHIZAWA ATSUSHI
IPC: G11B7/24015
Filed: 1993-01-08
Abstract: PURPOSE:To perform high density recording with sufficient sensitivity and reflectance for laser of a short wavelength by a method wherein a recording film is formed of a substance containing cyanin represented by a specific general formula, in an optical recording medium produced such that the recording film is formed on a light transmissive substrate. CONSTITUTION:In an optical recording medium for a write once, read many optical disc, a recording film formed of the light transmissive substrate is formed of a substance containing cyanin represented by a general formula as described at the right. In the formula, R1 and R2 each represents any one of an alkyl group, an aryl group, and an alkoxyl group, and W1 and W2 each represents a substituent an alkyl groups, an alkoxyl group, an aryl group, an alkoxycarbonyl group, a sulfonyl alkyl group, and a cyano group. Further, Y represents a substituent, such as a halogen atom, a hydrogen atom, or an alkyl group, and X(-) represents gegen ion, such as I(-), Br(-), C104(-), BF4(-), PF6(-), SbF6(-), CH3SO4(-), CH3-CH4-SO3.
Patent JP-S57116974-A (JP)
Title: Multi-stage shaft seal device
Inventor: KIMIZUKA TADAHIKO
IPC: F16J15/16
Filed: 1981-01-12
Abstract: PURPOSE: To hold a device in a good state of sealing quality, by detecting a difference of pressure between seals, comparing the pressure with set pressure, operating a gas pressure regulating means on the basis of its result and keeping the difference of pressure to the set pressure.  
     CONSTITUTION: A branch pressure pipe 21a is divided from the connection part 21 of a gas sump 5, simultaneously a branch pressure pipe 22b is divided from the connection part 22 of a part 9 between seals, and these branch pressure pipes 21a, 22b are connected to a pressure difference converter 35 in which a pressure difference between before and after the shaft seal is detected and converted into an electric signal A. While there is provided a solenoid operating pressure difference setter 36, capable of optionally setting a pressure difference operating a solenoid in a gas pressure regulating device 10 as an electric signal B. Then the both signals A, B are guided to an electric signal comparator and concurrently an on-off signal generating device 37 of solenoid operated electric circuit, and the detected difference pressure is compared with difference pressure required for adjustment, then an on-off signal (c) of the solenoid operated electric circuit is obtained and guided to a switch 31a. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H07263989-A (JP)
Title: Multistage solid state amplifier reproducing electron tube distortion
Inventor: JIYATSUKU SHII SONDAAMAIYAA
IPC: H03F1/32
Filed: 1995-01-10
Abstract: PURPOSE: To simulate an electron tube sound well in conformity with an input/ output ratio characteristic of an existing electron tube circuit very excellently by driving a diode which has a forward voltage clipping value of a specific voltage value in a general solid-state device. CONSTITUTION: Respective amplification stages 114, 116, and 118 are provided with diodes 162, 164, and 166 in parallel to reference voltage resistances 146, 152, and 158. Consequently, the diodes 16 2, 164, and 166 have their cathode sides grounded and their anode sides coupled with connection points between voltage dividing resistances 144 and 146, 150 and 152, and 156, and 158 of the respective stages. The diodes 162, 164, and 166 conduct forward, and consequently a clipping level of, for example, +0.5 V is generated with a gate amplitude, thereby reproducing distortion accompanying the grid conduction of the electron tube amplifier. Therefore, the solid-state multistage preamplifier 110 actualizes the distortion of the electron tube circuit by using a low-level clipping device such as the diodes 162, 164, and 166.
Patent JP-H05301947-A (JP)
Title: Epoxy interpenetrating polymer network having internetwork bond
Inventor: JIIFUAA FUUON
IPC: C08G59/20
Filed: 1993-01-11
Abstract: PURPOSE: To provide the subject network which is excellent in tensile strength, fracture toughness, water resistance, heat stability, etc., because it has an internetwork bonds among interpenetrating networks in a special manner and is desirable as a structural material in the petroleum-related fields.  
     CONSTITUTION: The objective network is obtained in the beflow-mentioned way. First, a first crosslinking agent is mixed with a first diepoxy resin having a molecular weight of 350-2,000, and the resin is crosslinked without gelation to obtain a first polymer network. Next, a second crosslinking agent is mixed with a second diepoxy resin having a molecular weight of 350-2,000 and comprising an EPRX resin such as of formula I or II (wherein R and R" are each an aliphatic, aromatic or a like spacer group; P is C or N; and S is a pendant non-epoxide functional group such as a primary to tertiary amine), and the resin is crosslinked without gelation to obtain a second polymer network. Subsequently, the first and second networks are mixed with each other, and the mixture is heated in multiple stages to sequentially effecting the gelation, the formation of an interpenetrating polymer network and the activation of X groups. 
     COPYRIGHT: (C)1993,JPO
Patent JP-2000207881-A (JP)
Title: Driving circuit for single electronic memory element and its driving method
Inventor: KAWAURA HISAO
IPC: G11C11/21
Filed: 1999-01-07
Abstract: PROBLEM TO BE SOLVED: To enable a driving circuit to be operated even by an electrostatic capacity of an island region being almost the same as operation temperature by controlling the voltage to be applied to a compensation gate so that potential variation of an island region in which a gate voltage control means is modulated by voltage variation of a main gate is compensated. SOLUTION: A gate voltage control circuit 110 states the application of a positive voltage increasing with time and a fixed negative voltage to a main gate 102 through a first work line 108 by a 'write-in' or 'erasing' signal from an operation control line 114, and simultaneously, the circuit 110 compensates so that a potential of an island region 104 is kept always constant by applying voltage having opposite polarity to voltage given to the main gate 102 to a compensation gate 106 through a second work line 109. Thereby, electrostatic energy of the island region 104 for observing Coulomb vibration is sufficient for approximately several times of operation temperature, a large quantity of electrostatic capacity is not required, and a high temperature operation can be performed.
Patent JP-S5699745-A (JP)
Title: Frozen seasoned slices of raw deep-sea fish and its preparation
Inventor: SASAKI TOSHIYASU
IPC: A23B4/08
Filed: 1980-01-11
Abstract: PURPOSE: To obtain slices of raw fish having improved taste and appearance, by soaking deep-sea fish meat with its head and tail removed, separated from the backbone, in a solution obtained by dissolving a specific amount of chemical seasoning in a solution of salt with a specified Baume degree, followed by packing the meat with a sheet of cellophane paper and freezing.  
     CONSTITUTION: 200W400 Gram chemical seasoning is dissolvent in 100l solution of salt with a Baume degree of 3W15° to give a seasoning solution. A deep-sea fish with its head and tail removed is cut in such a way that the meat is separated from the backbone as a boundary line and the metal is soaked in the prepared seasoning solution for 5W30min. The meat is packed with a sheet of cellophane paper and frozen by a quick freezer, to give a product. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H10193304-A (JP)
Title: Preservation of wooden base material
Inventor: KLOSOWSKI JEROME MELVIN
IPC: B32B21/04
Filed: 1998-01-08
Abstract: PROBLEM TO BE SOLVED: To develop a preserving agent which replaces polyethylene glycol, or perform a stabilizing treatment with polyethylene glycol because the polyethylene glycol conventionally used for the preservation of wooden material soaked with water has a limit for the conservation period of the processed material, and also, generates an instability of the polyethylene glycol. SOLUTION: A wooden base material soaked with water, or water and polyethylene glycol, is impregnated with a polyoxyethylene polymer having averagely at least two pieces of carbinol groups per particle, and in addition, the impregnated base material is impregnated with a bridging agent, and is exposed to a catalyst to harden the polymer. By doing so, a processed base material which does not generate deformation and shrinkage can be obtained, and also, one part of the polyoxyethylene polymer can be substituted with hardening siloxane, or hydrolyzable silane.
Patent JP-S56100888-A (JP)
Title: Phosphor and fluorescent display tube using the same
Inventor: SHIYUUMOTO HIROSHI
IPC: C09K11/64
Filed: 1980-01-16
Abstract: PURPOSE: To provide a phosphor for low-speed electron beam excitation emitting a bluish green to red color by an electron emission of low acceleration voltage, by adding a specified amount of Ag, Al to zinc cadmium sulfide matrix with a specified composition.  
     CONSTITUTION: By sufficiently increasing a conductivity of a phosphor obtained by adding Ag as an activator to a matrix of zinc cadmium sulfide shown by the formula (wherein 0.25≤x≤0.95) in an amount of 1×10 -5 W10 -3 atom/mole and Al as a donor impurity in said zinc cadmium sulfide thereto in an amount of 1.2× 10 -3 W 5×10 -2 atom/mole and adjusting an amount of Al to have a concn. higher than that of Ag to increase a donor concn., a phosphor most suitable for low-speed electron beam is obtained. Moreover, by constituting a fluorescent layer by using said phosphor, a fluorescent tube suitable as a display apparatus of various electronic devices is obtained. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H09187552-A (JP)
Title: Pachinko machine
Inventor: WATANABE KANEHISA
IPC: A63F7/02
Filed: 1996-01-10
Abstract: PROBLEM TO BE SOLVED: To provide a pachinko machine with which a player can be positively participated in play, even a player sikked in play can not generate 'great success' more than fixed probability and many players can perform play without the feeling of inequality. SOLUTION: Concerning a pachinko machine 2, an ordinary motor-driven accessory 11, special picture pattern display part 2, right stop gate 9 and left stop gate 10 or the like are provided in a play area 2. When any playing ball gets a prize at the ordinary motor-driven accessory 11, three picture patterns displayed on the special picture pattern display part 3 are started being varied and after the lapse of prescribed time, the indication is stopped. When three special picture patterns of that stopped indication show 'great success picture patterns', the 'great success state' advantageous for the player occurs. Besides, when the playing ball passes through the inside of right stop gate 9 or left stop gate 10 within prescribed time from the variation start of special picture patterns, the indication of respective special picture patterns under varying is immediately stopped.
Patent JP-H09195015-A (JP)
Title: Steel ball for playing and its production
Inventor: KATO YOSHIHISA
IPC: C22C38/00
Filed: 1996-01-10
Abstract: PROBLEM TO BE SOLVED: To produce a steel ball for playing capable of obtaining sufficient corrosion resistance without applied with Cr plating. SOLUTION: This nonplated steel ball for playing has a componental compsn. contg., by weight, 0.10 to 0.9O% C, 15.0 to 17.0% Cr, 1.0 to 3.0% Ni, <=1.00% Si, <=1.00% Mn, <=0.030% P, <=0.030% S, <=0.060% N and <=0.010% O, and whose surface is formed of a glossy skin by grinding or ceramics vapor- deposited coating.
Patent JP-S61164401-A (JP)
Title: Regenerative braking control system of electric railcar
Inventor: KASHIN NOBORU
IPC: H02P3/14
Filed: 1985-01-11
Abstract: PURPOSE:To rapidly rise a regenerative brake current by judging whether a series and parallel connection contactor should be connected in series or parallel by a voltage generated in an armature in the state that the contactor is OFF. CONSTITUTION:When a main circuit forms a regenerative brake circuit from an open state, a main circuit line breaker and field contactors 2a, 2b are closed, and series and parallel connection contactors K1 and K2, K3 are opened. When the prescribed current is flowed from a field unit 3a to a field circuit of a motor of piece group in this state, a voltage is induced in the armature of the motor of one piece group. The railcar speed is judged by the voltage value to decide whether the contactor should be connected in parallel or series to close the contactors K2, K3 in case of parallel connection, and to close the contactor K1 in case of series connection.
Patent JP-H04241487-A (JP)
Title: Semiconductor laser
Inventor: NIDOU MASAAKI
IPC: H01S5/00
Filed: 1991-01-16
Abstract: PURPOSE:To provide a multiple quantum well semiconductor laser for long-wave long-band optical communication low in a vibration threshold, excellent in high temperature operating characteristics and capable of high speed modulating. CONSTITUTION:A multi-layer barrier layer made of a quantum well 4 with tensile distortion applied and two barrier layers 3 with the well 4 interposed is used as a multiple quantum well active layer. The lowest order hall sub band of this quantum well 4 is a light hall sub band 12, while the lowest order electron in the quantum well 4 is higher than that of the quantum well active layer 5 and energy of the hall sub band is lower than that of the layer 5, respectively. Thickness of the barrier layer is such that tunnel time constants of electrons and halls from the quantum well 4 to the quantum well active layer 5 are 10 picoseconds or lower. A carrier with current implanted is efficiently trapped in the quantum well 4 and the quantum well active layer 5 in the multi- layer barrier layer, and the carrier in the quantum well 4 in the multi-layer barrier layer is implanted into the quantum well active layer 5 by high speed tunneling.
Patent JP-S60146544-A (JP)
Title: Synchronism supervisory device
Inventor: SEKINE MASATOSHI
IPC: H04B1/7156
Filed: 1984-01-11
Abstract: PURPOSE:To attain synchronism supervision with improved S/N by detecting the difference between the maximum value and the 2nd larger value in the outputs of a multi-value error correction decoder and deciding it as the deterioration of S/N when the difference is smaller than the preset threshold value. CONSTITUTION:An antenna 21 receives a signal subject to frequency hopping FH, a mixer 22 is applied with inverse-spread by using a local signal fL generated from an FH synthesizer 23 driven by a spread core generator 24 so as to generate a multi-value FSK signal based on an error correction code. Frequency components f1, f2... are extracted by a filter bank 25, detected (24) and inputted to an analog register 27. Then the signal is added (28), the maximum value Vmax is detected (29), and further the 2nd maximum value Vmax2 is detected (41). The difference between the Vmax and the Vmax2 is obtained by a synchronism supervising device 42, the result is compared with a prescribed threshold value, and when the difference is small, it is decided as the deterioration of S/N. Thus, the synchronism supervision is attained by using a signal with improved S/N.
Patent JP-S59129670-A (JP)
Title: Non-woven abrasive material
Inventor: YAMASHITA HIROYUKI
IPC: B24D3/20
Filed: 1983-01-11
Abstract: PURPOSE:To obtain lustered finish by a method wherein abrasive grains are secured onto the surface of fibers by employing the non-woven, treated with binding process, and a solvent having an activity to said non-woven material. CONSTITUTION:The non-woven abrasive material is constituted by a method wherein the mutual intersecting and contacting parts between the fibers 1 constituting the non-woven are bonded by PVA melamine resin bonding agent 2, inactive and insoluble against xylene solving polypropylene fibers adhered to the intersecting and contacting parts, while the abrasive grains 3 are adhered onto the surface 4 of the fibers, not bonded by the bonding agent 2 and a part of which is solved by the xylene solvent. The abrasive grains 3 are adhered directly by the partial resolution of the surface of the fibers, therefore, they will never be dropped readily, while they are impregnated into the inside of the organization of the non-woven and are adhered thereto, therefore, the grinding effect thereof may be maintained. Darkness due to the adhesion of the resin will never be generated and the quality of the abrasive material may be improved.
Patent JP-H01182319-A (JP)
Title: Production of copolymer polyester
Inventor: HAYASHI HIDEO
IPC: C08G63/60
Filed: 1988-01-12
Abstract: PURPOSE:To obtain the title polyester having excellent tensile strength and bending toughness and suitable for moldings for optical fiber coating material, electronic component, etc., by reacting a polyester with an acyloxyaromatic carboxylic acid in specific ratio and temperature conditions. CONSTITUTION:(A) 10-70mol% polyester (e.g., polyethylene terephthalate) consisting of recurring unit expressed by formula I (R<1> is 4-20C cycloalkylene, 6-16C arylene, etc.; R<2> is 2-20C alkylene, etc.) is reacted with (B) 90-30mol% acyloxycarboxylic acid expressed by formula II (R<3> is halogen, etc.; R<4> is 1-8C alkyl, etc.; m is 0-4) at 160-250 deg.C as the first process, preferably under N2 atmosphere and then at 250-400 deg.C, preferably while stirring to provide the aimed polyester.
Patent JP-S56100885-A (JP)
Title: Composition for liquid crystal color display
Inventor: NISHIZAWA ISAO
IPC: C09B1/503
Filed: 1980-01-17
Abstract: NEW MATERIAL:An anthraquinone derivative shown by formula I (wherein R is H, 1W15C straight or branched alkyl, cyclohexyl).  
     EXAMPLE: A compound shown by formula II.  
     USE: A dyestuff coloring a nematic liquid crystal to a clear favorable blue color and having an extremely high two-color ratio (contrast) and excellent light fastness.  
     PREPARATION: 1,5-Dihydroxy-4,8-diamino-anthraquinone-2,6-disulfonic acid and a compound shown by formula III (wherein R 1  is H, 1W15C straight or branched alkyl, cyclohexyl) are reacted in the presence of boric acid in sulfuric acid to oxidize a borate ester group and then desulfonated to synthesize the compound of formula I. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S5498772-A (JP)
Title: 4-substituted 3-piperidone compound
Inventor: MURAI HIROSHI
IPC: C07D211/74
Filed: 1978-01-14
Abstract: NEW MATERIAL:A 4-substituted-3-piperidone compound of formula I: (R 1  is lower alkyl, benzyl, or phenethyl group; R 2  is H or alkoxycarbonyl; R 3  is carboxyl, alkoxycarbonyl, or cano group; n is 1 or 2).  
     EXAMPLE: Ethyl 1-benzyl-4-ethoxycarbonyl-3-oxo-4-piperidineacetate.  
     USE: A raw material for the synthesis of azaerythrinane derivatives useful as analgesics, antitussives, and antiphlogistics, having a central nervous system suppressing action.  
     PROCESS: A diester of formula II is subjected to the Dieckmann condensation to form a compound of formula III, which is reacted with a haloacetate in the presence of a base in an inert organic solvent to give a compound of formula IV. The compound of formula IV is then hydrolyzed and decarboxylated under acidic conditions to form a compound of formula V, which is esterified in the presence of an acid catalyst to give the objective compound of formula I: (R 2  is H; n is 1). 
     COPYRIGHT: (C)1979,JPO&Japio