baber/WOPTO huggingface dataset:
Patent JP-H02133329-A (JP)
Title: Production of quartz glass
Inventor: TSUKUMA KOJI
IPC: C03B20/00
Filed: 1988-11-10
Abstract: PURPOSE:To simply produce quartz glass having no striae toward any direction and having a shape such as thin plate, tube, etc., by filtering a liquid suspension of fine particles obtd. by pulverizing fine silica powder by a wet process, through a filter, compacting the cake to a molded body after drying and sintering the molded body. CONSTITUTION:Quartz glass contg. no striae is produced from fine silica powder by the process described hereunder. A liquid suspension of fine silica particles prepd. by pulverizing fine silica powder in a solvent by a wet process is filtered through a filter. Obtd. cake is dried and molded to a molded body, which is then sintered at high temp. If the sintering at high temp. is performed after compacting the molded body with a rubber press by a dry compression molding process, a percentage of shrinkage during sintering is reduced. Preferred fine silica powder to be used as starting material is one which has been obtd. by calcining at 200-1200 deg.C a hydrolyzed Si alkoxide. Preferred solvent for the wet pulverization is water, alcohol or a mixture thereof.
Patent JP-H04159106-A (JP)
Title: Radial tire for aircraft
Inventor: SHOYAMA YOSHINOBU
IPC: B60C15/00
Filed: 1990-10-24
Abstract: PURPOSE:To prevent the separation failure of a bead part, and to improve the durability of the bead part by forming a bead chafer along a rewinding ply from one end situated nearer to a rim, to the line running a shortest distance between the rim flange of a tire and a bead core. CONSTITUTION:A carcass ply 2 is formed into toroid, from one bead core 1 to the other bead core that is not shown in the drawing, and its winding ply 2a is wound back from inside to outside around each bead core 1, while a rewinding ply 2b is wound from outside to inside around each bead core, in the reverse way. A chafer 3 is arranged in such a way that the outermost layer of the carcass ply 2, i.e., the outside of the rewinding ply 2b is surrounded thereby. The chafer 3 is arranged in a rim assembly position of a tire, closer to a line 5 that runs the shortest interval between a rim flange 4 and the bead core 1, from one end 3a to the rewinding ply 2b, and the other end 3b is located in the middle of the end stopping step of the rewinding ply 2b.
Patent JP-S63139778-A (JP)
Title: Transfer recording medium containing cassette
Inventor: ISHIKAWA NORIYOSHI
IPC: B41J17/32
Filed: 1986-12-01
Abstract: PURPOSE:To be able to easily confirm the residue of a recording medium to be transferred by composing part of a container for containing a recording medium of a material which does not transmit light of wavelength reactive to the medium. CONSTITUTION:A recording medium 1 to be transferred is contained in a cassette C as a supply roll 1 and associated within a main unit M. The both side plates C5 of the cassette C are composed of acrylic plates containing yellow dye so as not to transmit the light of wavelength irradiated from a light irradiating means. Since the side plate C5 does not transmit the lights of phosphors 3c, 3d, but has sufficient transmissibility for the light of wavelength of 450nm or longer when a unit 16 is opened and the interior is observed from the side plate C5 of the cassette C, the interior of the cassette can be observed. Accordingly, the residue of the medium 1 can be easily confirmed.
Patent JP-H05121914-A (JP)
Title: Waveguide/strip line converter
Inventor: OGA OSAMU
IPC: H01P5/107
Filed: 1991-10-30
Abstract: PURPOSE:To improve a noise figure by allowing an earth condutor on the back of a dielectric board forming a microstrip line in the vicinity of a mount part of a probe to be adhered with the side of a square waveguide so as to attain uniform earthing. CONSTITUTION:A screw thread 16 made to the outside of a pipe 8 and a screw thread made to the circular hold 15 of a square waveguide 1 are engaged with each other in the vicinity A of a mounting part of a metal-made probe 4. Then a dielectric base 2 is retained to the side of the waveguide 1 between the engaged part and a projection 17 provided on the head of the probe 4. Thus, the floating of the board 1 is prevented and then an earth conductor on the back of the board 2 and the side of the waveguide 1 are uniformly adhered to connect the earth conductor to ground. Consequently, the conversion loss is reduced and the noise figure is improved.
Patent JP-H09100484-A (JP)
Title: Production of magnetic fluid
Inventor: MINAGAWA TOMOKO
IPC: C10N10/02
Filed: 1995-10-05
Abstract: PROBLEM TO BE SOLVED: To obtain a magnetic fluid in an extremely short time by extracting an aqueous suspension of fine particles of ferrite containing an adsorbed water-soluble surfactant with a solvent, agglomerating to a cake of fine particles with an agglomeration solvent and adding a specific compound to the cake to substitute the compound for the water-soluble surfactant. SOLUTION: An aqueous suspension of fine particles (A) of a ferrite containing an adsorbed water-soluble surfactant is extracted with a hydrocarbon extraction solvent (B1 ), the extracted liquid is dehydrated and added with an agglomeration solvent to effect the agglomeration of the particles in the form of a cake, the cake is dispersed in a hydrocarbon solvent (B2 ) having low boiling point, the dispersion is incorporated with a solution produced by dissolving an N-polyalkylene polyamine-substituted alkenylsuccinimide (C) such as a compound of the formula I (R is a 12-24C hydrocarbon group or a polybutenyl having a molecular weight of 300-2,000;  R' is a 1-6C alkylene) or a compound of the formula II in a hydrocarbon solvent (B3 ) having high boiling point, the component B2 is distilled out, the remaining liquid is heated at 150-350 deg.C to effect the adsorption of the component C to the component A, the component B2 is added again, an oil having low vapor pressure is added to the obtained solution to disperse the oil and the component B2 is distilled off to obtain the objective magnetic fluid.
Patent JP-H07143070-A (JP)
Title: Direct light amplifier
Inventor: ASAHI KOJI
IPC: H04B10/294
Filed: 1993-11-15
Abstract: PURPOSE:To obtain a direct light amplifier compensating the lowering of the gain for a low frequency signal. CONSTITUTION:An optical signal is branched in an optical branching device 17 and the one of these branched signal is converted into current by a pin photo diode 18. This current is converted into a voltage signal in a current voltage conversion circuit 19 and the signal component of a low frequency area is extracted by a low-pass filter 21. The output of this low-pass filter is inputted in an exciting light source driving circuit 15 after the output is amplified in an amplifier 22. At this place, exciting current where current amount is increased corresponding to the amplitude of the component of the low frequency signal extracted in the low-pass filter is generated and an exciting light source 16 is driven. The exciting light source 16 supplies exciting light where light intensity is increased according to the amplitude of the component of the low frequency signal to an erbium doped fiber 12 via a wavelength division multiple coupler 13. The other optical signal branched in the optical branching device 17 is amplified by this exciting light in the erbium doped fiber 12. Thus, a light direct amplifier where the lowering of the amplifier gain in the low-pass of the erbium dope fiber is compensated by appearances can be realized.
Patent JP-H05251640-A (JP)
Title: Protective circuit for connection contact of monolithic integrated circuit
Inventor: BURUKUHARUTO GIIBERU
IPC: H01L21/822
Filed: 1992-10-22
Abstract: PURPOSE: To provide a protective circuit which protects a monolithic integrated circuit, equipped with input/output stages constituted by a CMOS technology, against electrostatic discharge. CONSTITUTION: In an area H1 of respective connection contacts, a 4-layered device which forms a sink path with a limited switching threshold value and low resistance from the connection contacts to a power supply terminal is formed by coupling a parasitic transistor(TR), formed of an n+-region area z1, a p-type base body region st surrounding it, and an n+-area z2 and a base body TR. Then the protecting circuit includes a device z5 which cuts off a current flowing in the base body between at least part of the 4-layered device and another element, forming another 4-layered device.
Patent JP-S63137293-A (JP)
Inventor: TSUTSUMI KATSUHIKO
IPC: G10C9/00
Filed: 1986-11-28
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-S63138825-A (JP)
Title: Digital data transmission equipment
Inventor: SUZUKI NORIYUKI
IPC: H04L1/16
Filed: 1986-11-29
Abstract: PURPOSE:To correct a transmission error by receiving same digital data for plural number of times and collecting the number of '1's and '0's for each bit. CONSTITUTION:The same digital data are received twice and number of 1s and 0s is collected for each bit. When each bit is all coincident, the data is adopted. If any dissident bit exists, the same data retransmission is requested and the collection of the number of 1s and 0s for each bit is continued further. The data retransmission is requested till the ratio of the total SUM1 of 1s to the total SUM0 of 0s reaches a prescribed value (e.g., 3) and a data having a larger collection is adopted for each bit when the ratio reaches a prescribed value or over. Then even with transmission error in the data, a correct data correction is applied. Figure shows an example of correction finished by 4 time receptions.
Patent JP-H06107645-A (JP)
Title: Benzoxazole derivative
Inventor: TANAKA AKIRA
IPC: C07D263/56
Filed: 1992-09-30
Abstract: PURPOSE:To obtain a new compound useful as a synthetic intermediate in the filed of an electric material and a chemical product. CONSTITUTION:A compound of the formula such as 2,2-bis(2,2'-p- aminophenylbenzoxazol-5,5-yl)hexafluoropropane. The compound is obtained by reacting 2,2-bis(3-amino-4-hydroxyphenyl)hexafluoropropane with p- aminobenzoic acid by using a dehydrating condensation agent (e.g. polyphosphoric acid) at 100-300 deg.C for 10 minutes to 10 hours. The amount of p-aminobenzoic acid is 1-3mols based on 2,2-bis(3-amino-4-hydroxyphenyl) hexafluoropropane and the amount of polyphosphoric acid is 2-50 pts.wt. based on 1 pt.wt. 2,2-bis(3-amino-4-hydroxyphenyl)hexafluoropropane. The compound of the formula is reacted with a tetracarboxylic acid anhydride to give a polyimide suitable for electrical and electronic materials.
Patent JP-H08145496-A (JP)
Title: Refrigerator
Inventor: NOMURA KAZUO
IPC: F25B25/02
Filed: 1994-11-18
Abstract: PURPOSE: To enhance the efficiency of the entire refrigerator by forming the refrigerator in which an absorption type refrigerator and a compression type refrigerator are combined. CONSTITUTION: An ammonia refrigerant flows through an evaporator 2, an absorber 4, a regenerator 8 and a condenser 10 to form an absorption type refrigerator, and flows through the generator 8, a compressor 4 and the condenser 10 to form a compression type refrigerator. The exhaust heat of cooling water or waste gas warmed by a prime mover for driving the compressor 14 of the compression type refrigerator is introduced to the regenerator 8 of the absorption type refrigerator to be used as a heat source, thereby reducing the waste of thermal energy. The ammonia refrigerant, the evaporator 2 and the condenser 10 can be shared, thereby reducing the waste of the entire refrigerator.
Patent JP-H01128466-A (JP)
Title: Semiconductor memory device
Inventor: ABE KATSUHIKO
IPC: H01L29/78
Filed: 1987-11-13
Abstract: PURPOSE:To shorten a process time from writing of information in the title capacitor memory device to completion of the manufacture of the device by effecting the writing of information such that a semiconductor wafer is annealed in the final process of the manufacture to charge the whole of a first insulating film with positive electric charges and then a selected memory cell is irradiated with ultraviolet rays to change the number of the positive electric charges. CONSTITUTION:The whole of a semiconductor wafer (substrate 1) is annealed at a temperature of about 450 deg.C for example to charge an insulating film 9A (SOG film) with positive electric charges 20. The threshold values of n channel MOSFETs of all memory cells Q (Q1, Q2) and of surrounding circuits are brought into about 0.6V for example by the aforesaid positive electric charges 20. The MISFET of a selected memory cell Q2 is irradiated with ultraviolet rays 13 with use of a mask 12 comprising glass 12A and a metal film 12B. An opening 15 made through the metal film 12B corresponds to write information. Since the positive electric charges 20 are reduced at a part of the insulating film 9A where the film is irradiated with ultraviolet rays, the threshold value of the MISFET of the memory cell Q2 is adjusted to one above the power supply voltage VCC, for example about 7V. The threshold of the memory cell Q1 which is not irradiated with the ultraviolet rays 13 remains kept at about 0.6V.
Patent JP-H0597623-A (JP)
Title: Glass powder for glass ionomer cement and its production
Inventor: SHIBATA AKIHIKO
IPC: C04B28/28
Filed: 1991-10-07
Abstract: PURPOSE:To obtain the subject glass powder substantially extending operational time without having adverse effects on the physical properties of cured cement by mixing glass powder with a carboxylic acid in the presence of water followed by heat treatment. CONSTITUTION:Aluminosilicate glass powder to be used as a powder component for glass ionomer cement for dental use is incorporated with <=0.1 (pref. >=0.3)wt.% of a carboxylic acid (pref. tartaric acid) in the form of a 1-10wt./ vol.% aqueous solution. The mixture is then treated under heating at 100-400 (pref. 150-250) deg.C for 4-24hr. The resultant glass powder heat-treated is kneaded with a polyalkenic acid in the presence of water to carry out reaction and setting to prepare glass ionomer cement for dental use.
Patent JP-H04164065-A (JP)
Title: New organic peroxide
Inventor: SUYAMA SHUJI
IPC: C07C409/38
Filed: 1990-10-25
Abstract: NEW MATERIAL:The compound of formula I (R1 and R2 are 1-5C alkyl; the sum of C numbers of R1 and R3 is 2-6). EXAMPLE:1-Cyclohexyl-1-methylethyl peroxyisobutyrate. USE:Useful as a polymerization initiator for unsaturated monomers or a hardener for unsaturated polyester resins. It has high polymerization rate and curing rate and gives an almost odorless polymer or cured material. PREPARATION:The compound of formula I can be produced e.g. by reacting a fatty acid halide of formula II (X is Cl, Br or I) with 1-cyclohexyl-1- methylethyl hydroperoxide in the presence of an alkali.
Patent JP-H08116732-A (JP)
Title: Rolling controller of planting section in transplanter
Inventor: YOKOYAMA YOSHIKI
IPC: A01C11/02
Filed: 1994-10-26
Abstract: PURPOSE: To obtain the rolling controller of a planting section in a transplanter, not only enabling to simply perform a work for separating the planting section, but also enabling to eliminate inconvenient troubles causing the assembling forgetting and the assembling failure of the members, when the planting section is connected. CONSTITUTION: An intermediate frame 12 capable of being rolled on a holder frame 4 and a planting section 3, a rolling elastic machine for elastically controlling the rolling of the planting section 3 on the basis of the intermediate frame 12, a forcible rolling controlling mechanism for forcibly controlling the rolling of the intermediate frame 12 on the basis of the holder frame 4, and a rolling sensor 19 for inputting the rolling detection signal into the forcible rolling control mechanism are disposed on the side of the planting section 3 capable of being freely separated from a travel frame 1.
Patent JP-S62153306-A (JP)
Inventor: ARUFUREETO MITSUCHIYUKAA
IPC: C08F220/32
Filed: 1986-12-02
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-2000111210-A (JP)
Title: Accumulator
Inventor: SASABE SHIGERU
IPC: F25B1/00
Filed: 1998-10-08
Abstract: PROBLEM TO BE SOLVED: To reduce the quantity of charge of a refrigerant and raise the explosionproofness, by reducing the quantity of remaining oil within sealed container in a freezing system using a hydrocarbon as a refrigerant and using a freezer oil larger in specific gravity than the refrigerant, in an accumulator provided in a freezing system. SOLUTION: This is one which is provided with a oil return hole 4 at the undermost part of the section where the refrigerant outflow pipe 3 is inserted, in an accumulator which is equipped with a sealed container 1, a refrigerant inflow pipe 2 inserted from above the sealed container 1, and a refrigerant outflow pipe 3 inserted from under the sealed container 1, and when a liquid refrigerant high in oil percentage is stored in the lower part and a liquid refrigerant high in refrigerant percentage in the upper part within the sealed container by the fluctuation of the load, the liquid refrigerant high in refrigerant percentage evaporates gradually, and is sent to the refrigerant outflow pipe 3, becoming a gas refrigerant,  and the freezer oil in the liquid refrigerant high in oil percentage in the lower part is sent to the refrigerant outflow pipe 3 through the oil return hole in the lowermost part at the refrigerant outflow pipe, whereby the quantity of remaining oil within the sealed container 1 can be reduced and the quantity of charge of the refrigerant can be reduced thereby raising the explosionproofness.
Patent JP-H10133482-A (JP)
Title: Separating device
Inventor: OKAMOTO KENJI
IPC: G03G15/14
Filed: 1996-10-29
Abstract: PROBLEM TO BE SOLVED: To provide a separating device capable of separating a recording material from a toner carrier so as to prevent a failure such as paper jamming from occurring in transporting a recording material, as for separating device equipped with a charge removing rod for separating a recording material on which toner image is transferred from a toner image carrier, even in the case of unsatisfactory discharge by the charge removing rod, in an image forming device transferring toner image of the toner image carrier to recording material by a transferring roller, to which a transferring voltage is applied, and which comes into press-contact with the toner image carrier holding the recording material there between. SOLUTION: On the downstream side from the transferring potion in the transporting direction of the recording material, on the surface side that the transferring roller 7 of the recording material is held in contact therewith when the transfer material passes through, the grounded charge removing rod 81, and an attracting plate 82 which is coated by a dielectric body layer 821 and grounded on the further downstream side, and moreover a conductive attraction preventing plate 83 which is made electrically floated is arranged on the surface side with which the transferring roller 7 of the recording material is held in contact.
Patent JP-H08256082-A (JP)
Title: Communication method and equipment
Inventor: GUREGORII DABURIYUU UOONERU
IPC: H04J13/00
Filed: 1995-10-09
Abstract: PROBLEM TO BE SOLVED: To provide a transmission method and a device which prevent errors that are caused by harmful fading and noise in a radio transmission channel. SOLUTION: This device is used in plural user communication systems such as portable telephone system which has a fading characteristic in which multipath transmission specially changes in a channel as time passes. A precoding message stream consisting of symbols is convoluted with predetermined signature sequences for respective user, separates a message of a corresponding user and grapple with the effects of variable fading that changes as time passes.
Patent JP-H04161246-A (JP)
Title: Baking of sludge containing leaching water calcium
Inventor: HORII YASUO
IPC: C01F11/24
Filed: 1990-10-24
Abstract: PURPOSE:To remove hydrogen chloride in an exhaust gas from an incinerator using calcium oxide in a baked product by charging cake containing water- insoluble calcium salt into a high temperature incinerator for baking and producing calcium oxide in the baked product. CONSTITUTION:Organic sewage 1 containing a large amount of calcium ion such as leaching water is sent to a reconditioning tank 2, and after stirring/ homogenizing process, the sewage is reconditioned to a neutral to weak alkali level in a reactor tank 3, and at the same time, a calcium remover 5 is added. After completion of the reaction process, treated water 6a is sent to a flocculation tank 7, then a flocculant 8 such as ferric chloride is added. Further, a polymer flocculant 10 is added to form flocks. Next, treated water 6C is sent to a sedimentation tank 11, then water-insoluble calcium salt is allowed to precipitate, and the water is condensed in a sludge condensation tank 17 to be followed by the process to dehydrate it into cake using a dehydrator 20. After that, this cake 21 is charged to an incinerator 22 to produce calcium oxide in the baked product. Hydrogen chloride in the exhaust gas of the incinerator is absorbed using the calcium oxide.
Patent JP-H01128961-A (JP)
Title: Liquid crystal substance, its production and liquid crystal composition containing said substance
Inventor: SETO KOJI
IPC: C07B61/00
Filed: 1987-11-12
Abstract: NEW MATERIAL:The compound of formula I (R is 1-20C alkyl; R... is optically active group having asymmetric carbon atom; n is 0 or 1) having 1,2- diarenylethane skeleton. EXAMPLE:1-(4'-Alkyloxycarbonylphenyl)-2-(4'-alkoxyphenyl)ethane. USE:A component for chiral smectic liquid crystal composition. Useful as a display element having excellent response of image display. PREPARATION:The compound of formula I having 1,2-diarenylethane skeleton can be produced by reacting a diphenylacetylene compound of formula II with hydrogen. The reaction is carried out in the presence of a catalyst such as Pd/C, Raney-Ni, etc., preferably Pd/C which is easily handleable and available at a low cost. The reaction solvent is preferably ethyl acetate.
Patent JP-H11124860-A (JP)
Title: Foundation structure of building
Inventor: HAGIO KATSUHIKO
IPC: E02D27/01
Filed: 1997-10-20
Abstract: PROBLEM TO BE SOLVED: To obtain a foundation structure excellent in heat-insulation and termite prevention by covering a continuous leveling concrete face between an outer peripheral foundation and a mat foundation with a termite-preventive sheet and arranging cellular glass sheets at the outside of the outer peripheral foundation. SOLUTION: The arrangement face for an outer peripheral foundation 1 and a mat foundation 3 is leveled and leveling concrete 8 is placed thereon and further, the whole face is covered with a termite preventive sheet 4. Then, cellular glass sheets 20 are arranged on the outer peripheral foundation face surrounding a building while sticking an adhesive thereon and reinforcements 9 are arranged at the inside. And then, concrete is placed to form the foundation part 1a of the outer peripheral foundation 1 and the mat concrete foundation 3. Then, inside forms are installed an concrete is placed between the form and the cellular glass sheet 20 to form the rising part 1b of the outer peripheral foundation 1 and install a sill 5 while leveling the top face. A finish layer 6 such as mortar is formed at the outside face of the cellular glass sheet 20 and the outside soil is filled back.  In this way, a foundation excellent in heat- insulation and termite prevention can be constructed in a simple procedure.