| Kurita Water Industries, Ltd. Patent applications |
| Patent application number | Title | Published |
|---|
| 20120097595 | DEVICE FOR TREATING HYDROGEN PEROXIDE WATER - The present invention provides a device for treating hydrogen peroxide water, the device being capable of carrying out continuous operation and stable efficient treatment even for drainage containing relatively highly concentrated hydrogen peroxide on the order of several percent and the device having a simple configuration and a relatively compact size. There is provided a device for treating hydrogen peroxide water, including: an inlet for water to be treated; an outlet for treated water; a hydrogen peroxide decomposition reactor | 04-26-2012 |
| 20120067380 | CLEANING LIQUID, CLEANING METHOD, LIQUID GENERATING APPARATUS, EXPOSURE APPARATUS, AND DEVICE FABRICATING METHOD - An exposure apparatus exposes a substrate through an exposure liquid with exposure light. A cleaning liquid is provided to the exposure apparatus, in order to clean at least part of the exposure apparatus. In the cleaning liquid, a prescribed gas of an amount that is greater than or equal to the saturation concentration is dissolved. | 03-22-2012 |
| 20120022192 | INHIBITOR AND METHOD FOR PREVENTING SILICA-BASED SCALE - Provided are a water-treating agent which includes a specific nonionic polymer and a phosphorus compound and can exhibit the ability to inhibit the deposition of silica-based scale under wide ranges of water quality conditions and temperature conditions; and a method of treating water. The inhibitor for silica-based scale includes a nonionic polymer and a phosphorus compound, the nonionic polymer being: a polymer formed by the reaction of an unsaturated double bond and including units derived from at least one monomer selected from the group consisting of (meth)acrylamide, N-substituted (meth)acrylamide and N-vinyl lactam; and/or one or more polymers having an ether group and selected from the group consisting of alkyl alcohol/polyalkylene oxide adducts, aliphatic monocarboxylic acid/polyalkylene oxide adducts, and polyvinyl alcohol/polyalkylene oxide adducts. | 01-26-2012 |
| 20120012134 | METHOD FOR CLEANING ELECTRONIC MATERIAL AND DEVICE FOR CLEANING ELECTRONIC MATERIAL - A resist on an electronic material is surely separated and removed in a short time. The electronic material is cleaned with a sulfuric acid solution containing persulfuric acid to separate and clean the resist, and thereafter wet cleaning is performed with gas dissolved water. By using gas dissolved water for performing wet cleaning after the resist separation with the sulfuric acid solution containing persulfuric acid, the time required for cleaning can be sharply reduced as compared with that of a former method. The sulfuric acid solution containing persulfuric acid is preferably one produced by electrolyzing a sulfuric acid solution. A sulfuric acid solution which is discharged from a resist separation and cleaning device and in which the persulfuric acid concentration has decreased is supplied to an electrolytic reactor for regeneration, and then the sulfuric acid solution, in which the persulfuric acid concentration has been sufficiently increased, is circulated to the cleaning device, whereby the resist can be efficiently separated and removed with the high-concentration persulfuric acid and the repeated use of the sulfuric acid can be achieved. | 01-19-2012 |
| 20120006790 | Apparatus and method for treating etching solution - An apparatus and method for treating an etching solution, where the replacement frequency of the etching solution is reduced, while the inclusion of impurities in the treated etching solution is prevented. An apparatus for treating an etching solution in order to reuse the etching solution used in etching treatment of silicon, where the apparatus includes: membrane separation means | 01-12-2012 |
| 20120006755 | PROCESS FOR TREATMENT OF WATER CONTAINING AZOLE-TYPE ANTICORROSIVE FOR COPPER - Provided is a process for efficiently removing an azole-type anticorrosive for copper from water containing the azole-type anticorrosive for copper, such as wastewater discharged from a CMP step in a fabrication process of a semiconductor device. Ferrous ions are added to water containing an azole-type anticorrosive for copper, and a resulting insoluble iron-azole complex is separated. After the insoluble iron-azole complex is separated, the remaining TOC components are subjected to ozonolysis. The azole-type anticorrosive for copper can be efficiently insolubilized in the form of an iron-azole complex using ferrous ions, and flocculation/solid-liquid separation can be performed. The water after removal of the insoluble matter formed by the addition of ferrous ions is water from which not only the azole-type anticorrosive for copper but also suspended solids have been removed. Therefore, when an ozone-based advanced oxidation process is performed, ozone can be prevented from being wasted, and TOC components including the remaining azole-type anticorrosive for copper can be decomposed and removed to a high degree by injection of a small amount of ozone. | 01-12-2012 |
| 20110305839 | OZONE GAS TREATMENT PROCESS AND TREATMENT APPARATUS - A process for treating the surface of a resin substrate with an ozone gas by bringing the ozone gas into contact with the surface includes the steps of: generating an ozone gas; humidifying the generated ozone gas; and exposing the surface of the resin substrate to the humidified ozone gas. | 12-15-2011 |
| 20110297614 | SLIME-CONTROLLING AGENT FOR ACTIVATED CARBON, METHOD FOR PASSING WATER THROUGH ACTIVATED CARBON DEVICE, AND METHOD AND APPARATUS FOR TREATING ORGANIC-MATTER-CONTAINING WATER - Disclosed is a treatment apparatus capable of inhibiting growth of microorganisms and carrying out long-term stable treatment in an activated carbon tower and a reverse osmosis membrane separation device during processes including activated carbon treatment and RO membrane separation treatment of a later step in a system for manufacturing ultrapure water used in an electronic device factory. A method for treating organic-matter-containing water includes: the slime-controlling-agent-adding step of adding a slime-controlling agent to organic-matter-containing water; the activated-carbon-treating step of treating with activated carbon the organic-matter-containing water having undergone the slime-controlling-agent-adding step; and the reverse-osmosis-membrane-separation step of passing the organic-matter-containing water having undergone the activated-carbon-treating step through means for reverse osmosis membrane separation, wherein the slime-controlling agent uses a combined chlorine agent produced from a chlorine-based oxidizer and a sulfamic acid compound. | 12-08-2011 |
| 20110278222 | ULTRAPURE WATER PRODUCTION METHOD AN APPARATUS THEREFOR - Ultrapure water of high purity having extremely low TOC concentration is produced by efficiently degrading urea in raw water by biological activated carbon treatment even when the raw water contains ammonium nitrogen. The ultrapure water production method, where raw water is treated in a primary pure water system, and then the resulting water is treated in a subsystem, contains a step of treating pretreated water with chlorine based oxidizer added by a biological treatment means installed upstream to the subsystem. Chlorine based oxidizer is added so that the chlorine based oxidizer concentration is 5 times or more than the ammonium nitrogen concentration of water treated in the biological treatment means in terms of Cl | 11-17-2011 |
| 20110256427 | METHOD FOR MICROBIALLY GENERATING ELECTRICITY AND MICROBIAL POWER GENERATOR - To increase the power generation efficiency of a microbial power generator by using an easy and inexpensive unit. Two plate-like cation-exchange membranes | 10-20-2011 |
| 20110247929 | DIAMOND ELECTRODE AND METHOD FOR MANUFACTURING DIAMOND ELECTRODE - A diamond electrode having an oxidation resistant diamond film which will not separate from the electrode during electrolysis with highly oxidizing materials. The thickness of the diamond film is 20 pm or more and the diamond film should preferably cover opposite side surfaces of a substrate in such a manner as to also cover end surfaces | 10-13-2011 |
| 20110210072 | Pure Water Manufacturing Method And Pure Water Manufacturing Apparatus - In production of ultrapure water by purifying primary pure water with a secondary pure water manufacturing apparatus and a tertiary pure water manufacturing apparatus, high-purity ultrapure water is produced, wherein generation of hydrogen peroxide is minimized and the concentrations of TOC, DO, and hydrogen peroxide are reduced to the limit. In an ultrapure water manufacturing system, each of the secondary pure water manufacturing apparatus and the tertiary pure water manufacturing apparatus includes an ultraviolet oxidation device and a deionization device, downstream therefrom, by using an ion exchange resin. UV light control is performed in such a way that the hydrogen peroxide concentration results in 1 to 30 μg/L and the TOC concentration results in 1 to 10 μg/L at the outlet of the ultraviolet oxidation apparatus of the secondary pure water manufacturing apparatus and, in addition, the TOC concentration results in 0.1 to 5 μg/L at the outlet of the ultraviolet oxidation apparatus of the tertiary pure water manufacturing apparatus. UV light control is performed in such a way that the TOC concentration results in 1 to 10 μg/L at the outlet of the ultraviolet oxidation apparatus of the secondary pure water manufacturing apparatus and, in addition, the hydrogen peroxide concentration results in 1 to 20 μg/L and the TOC concentration results in 0.1 to 5 μg/L at the outlet of the ultraviolet oxidation apparatus of the tertiary pure water manufacturing apparatus. | 09-01-2011 |
| 20110203977 | FILTRATION APPARATUS AND WATER TREATMENT APPARATUS - The filtration apparatus of the invention includes a filtration member | 08-25-2011 |
| 20110200847 | MICROBIAL POWER GENERATION METHOD AND MICROBIAL POWER GENERATION DEVICE - Power generation efficiency of a microbial power generation device is improved by a simple and inexpensive means. Two plate-shaped cation-exchange membranes | 08-18-2011 |
| 20110180491 | METHOD AND APPARATUS FOR TREATING ORGANIC MATTER-CONTAINING WATER - Raw water is made to pass through a raw water supply pipe | 07-28-2011 |
| 20110120857 | FUNCTIONAL SOLUTION SUPPLY SYSTEM - A sulfuric acid electrolyte is produced efficiently as a functional solution and persulfuric acid produced by electrolysis is supplied efficiently to a use side while suppressing self-decomposition thereof. | 05-26-2011 |
| 20110094963 | MEMBRANE SEPARATION METHOD AND MEMBRANE SEPARATION DEVICE - To provide a membrane separation method capable of attaining reduced adsorption of a membrane-fouling substance contained in treatment water onto the surface of a separation membrane during membrane separation of the treatment water, to thereby lead retarded deterioration in membrane separation performance, and a membrane separation apparatus for performing the method. In the membrane separation method, to treatment water, a particulate cationic polymer which swells in water but does not substantially dissolve therein is added, and the treatment water is subjected to membrane separation. | 04-28-2011 |
| 20110042281 | GAS-DISSOLVED WATER SUPPLY SYSTEM - Provided is a gas-dissolved water supply system that can efficiently produce highly concentrated gas-dissolved water and can circulate and supply the water to a use point. To a storage tank 1, waste water (cleaning waste water) that is water containing dissolved gas (oxygen) used for cleaning an object to be cleaned is reserved through piping | 02-24-2011 |
| 20110030722 | CLEANING WATER FOR ELECTRONIC MATERIAL, METHOD FOR CLEANING ELECTRONIC MATERIAL AND SYSTEM FOR SUPPLYING WATER CONTAINING DISSOLVED GAS - Cleaning water for an electronic material which exhibits a remarkably improved cleaning effect in comparison with conventional waters containing dissolved gas is provided. The cleaning water for an electronic material comprises water containing dissolved gas containing oxygen and argon as dissolved gases, and has a concentration of dissolved oxygen being equal to or more than 8 mg/L, and a content of dissolved argon gas being equal to or more than 2 volume % of the total amount of dissolved oxygen gas and dissolved argon gas. A method for cleaning an electronic material with the cleaning water for an electronic material. The cleaning water for an electronic material of the present invention, which comprises water containing dissolved oxygen/argon gas, contains a smaller amount of dissolved gas, can obtain an improved cleaning effect even when a small amount of a chemical is used, and therefore, can be produced safely and easily at a low cost. | 02-10-2011 |
| 20110011792 | POLYMER FIBER MATERIAL, METHOD OF PRODUCING THE SAME, AND FILTER FOR FILTERING FLUID - There is provided a hybrid polymer fiber material containing a non-electrolytic polymer and an electrolytic polymer and having properties and advantages of both polymers, and provided a method of producing the hybrid polymer fiber material, and provided a filter made of the hybrid polymer fiber material. A voltage is applied between a nozzle | 01-20-2011 |
| 20100330397 | Microbial power generation device - A microbial power generation device includes an anode chamber which maintains a microbe and which is supplied with influent which includes an electron donor, a cathode chamber supplied with an electron acceptor, a nonconductive membrane having a first face and an opposing second face and arranged between the anode chamber and the cathode chamber, a first electro-conductive support material having a rough surface which has asperity spreading close to the first face of the nonconductive membrane, and formed by a porous material having approximately the same shape as the interior of the anode chamber, and arranged within the anode chamber, and a second electro-conductive support material having a rough surface which has asperity spreading close to the second face of the nonconductive membrane. | 12-30-2010 |
| 20100288308 | METHOD AND SYSTEM FOR PRODUCING ULTRAPURE WATER, AND METHOD AND SYSTEM FOR WASHING ELECTRONIC COMPONENT MEMBERS - An ultrapure water production system that can stably produce ultrapure water having a boron concentration of 1 ng/L or less or a metal concentration of 0.1 ng/L or less, a method for producing ultrapure water using the ultrapure water production system, and a method and a system for washing electronic component members. In an ultrapure water production system that includes a mixed-bed deionization apparatus | 11-18-2010 |
| 20100240535 | BACTERICIDAL/ALGICIDAL METHOD - The invention provides a bactericidal/algicidal method including adding an oxidant-based bactericidal/algicidal agent and a stabilizer therefor to a target water system, characterized in that the amount of combined chlorine or the stabilizer in the water system is controlled by generating free residual chlorine in the water system, and a bactericidal/algicidal method including adding an oxidant-based bactericidal/algicidal agent and a stabilizer therefor to a target water system, characterized in that the amount of the oxidant-based bactericidal/algicidal agent added is controlled so that the concentration of total residual chlorine in the water system falls within a predetermined range, and the amount of combined chlorine or the stabilizer is controlled so that the concentration of free residual chlorine in the water system falls within a predetermined range. | 09-23-2010 |
| 20100230350 | Method and apparatus for treating selenium-containing wastewater - A method and an apparatus for treating selenium-containing wastewater, in which wastewater containing hexavalent selenium is subjected to reduction treatment, selenium can be effectively removed at a small amount of metal leached, and, preferably, sludge produced during treatment is white, thereby facilitating the disposal of the sludge. The selenium-containing wastewater is brought into contact with an alloy or a mixture of metallic titanium and a first metal other than metallic titanium to partially leach the first metal, thereby subjecting selenium in the wastewater to reduction treatment. | 09-16-2010 |
| 20100206809 | METHOD AND APPARATUS FOR TREATING ORGANIC MATTER-CONTAINING WATER - There are provided a method and an apparatus for treating organic matter-containing water, the method and apparatus being capable of inhibiting the multiplication of microorganisms in an activated carbon column and a reverse osmosis membrane separator and performing stable treatment over long periods of time in a process including active carbon treatment and subsequent RO membrane separation treatment with an ultrapure water production system for use in electronic device manufacturing plants. The method for treating organic matter-containing water includes an oxidizer addition step of adding an oxidizer to organic matter-containing water, an activated carbon treatment step of treating the organic matter-containing water that has been subjected to the oxidizer addition step with activated carbon, and a reverse osmosis membrane separation step of feeding the organic matter-containing water that has been subjected to the activated carbon treatment step into a reverse osmosis separation means, in which a combined-chlorine-based oxidizer is used as the oxidizer. | 08-19-2010 |
| 20100187103 | Ion-permeable diaphragm - An ion-permeable diaphragm comprises a membrane material containing a calcium phosphate compound or calcium fluoride as a hydrophilic inorganic material. The calcium phosphate compound is preferably fluoroapatite or hydroxyapatite. The membrane material is obtained by incorporating a stretched organic fiber fabric into a membrane-forming mixture formed by the hydrophilic inorganic material and an organic binding material selected from among polysulfone, polypropylene, polyvinylidene fluoride or the like. As a result, there can be provided an ion-permeable membrane of low electric resistance for use in alkaline water electrolysis devices. | 07-29-2010 |
| 20100167158 | METHOD FOR PRODUCING A SOLID FUEL FOR FUEL CELLS, SOLID FUEL FOR FUEL CELLS, AND FUEL CELL - An object of the present invention is to provide a method for producing a highly safe solid fuel for fuel cells having excellent handleability, a highly safe solid fuel for fuel cells having excellent handleability, and a fuel cell using such a solid fuel for fuel cells. In a method for producing a solid fuel for fuel cells in which a coating film is formed on the surface of a porous material containing a fuel for fuel cells, the coating film is formed by polyvinyl alcohol, and the fuel for fuel cells is introduced into the porous material before and/or after formation of the coating film on the surface of the porous material. | 07-01-2010 |
| 20100133180 | Anaerobic treatment method and anaerobic treatment apparatus - A method and apparatus of anaerobic treatment which makes it possible to prevent disintegration of granular sludge and perform high-load high-velocity anaerobic treatment stably even in the case where treatment is performed under conditions where the granular sludge is easily disintegrated. In a reaction tank | 06-03-2010 |
| 20100130626 | METHOD FOR MANUFACTURING ANION EXCHANGE RESIN, ANION EXCHANGE RESIN, METHOD FOR MANUFACTURING CATION EXCHANGE RESIN, CATION EXCHANGE RESIN, MIXED BED RESIN, AND METHOD FOR MANUFACTURING ULTRAPURE WATER FOR WASHING ELECTRONIC COMPONENT MATERIAL - A method for manufacturing an anion exchange resin, in which remaining of impurities and generation of decomposition products are suppressed and leachables are reduced, the method including the following steps (1-a) to (1-e) of: (1-a) obtaining a cross-linked copolymer by copolymerizing a monovinyl aromatic monomer and a cross-linkable aromatic monomer; (1-b) specifying the content of a specific leachable compound to be 400 μg or less relative to | 05-27-2010 |
| 20100098995 | Direct methanol fuel cell system and portable electronic device - A fuel cell comprises a fuel electrode, an electrolyte membrane and an air electrode | 04-22-2010 |
| 20100092827 | DIRECT METHANOL FUEL CELL SYSTEM USING SOLID METHANOL, PORTABLE ELECTRONIC DEVICE USING SAME, AND FUEL CARTRIDGE FOR DIRECT METHANOL FUEL CELL SYSTEM - A fuel cartridge has a pair of flat faces in which holes are formed. A net is stretched within the holes, and solid methanol is packed inside the fuel cartridge. A fuel cell unit, shaped as a flat box, comprises a pair of flat wall portions, a pair of long-side wall portions, and a pair of short-side wall portions. Each flat wall portion is provided with two MEAs, as fuel cells that are arranged so that the fuel electrodes (not shown) face inward. One of the long-side wall portions has an opening provided with, on the edge thereof, an elastic packing serving as a sealing member. An opening and closing lid is pivotably provided to the opening by a pivot as a pivot member. The resulting reduced size methanol fuel cell system has sufficient air-tightness and good power generation efficiency, and is simple in structure. | 04-15-2010 |
| 20100068596 | Direct methanol fuel cell system and portable electronic device - A direct methanol fuel cell system comprises a fuel storage portion that stores solid-state methanol resulting from making methanol into a solid state, a fuel cell, and carrier gas circulation means. The fuel storage portion is provided with a carrier gas supply path communicating with the carrier gas circulation means and a fuel gas flow path 4 communicating with a fuel electrode side of the fuel cell, while the fuel cell is provided with a circulation flow path communicating with the carrier gas circulation means. When a carrier gas is supplied by the carrier gas circulation means into the fuel storage portion via the carrier gas supply path, a fuel gas is supplied to a fuel electrode and is refluxed thereafter towards the carrier gas circulation means. The resulting direct methanol fuel cell system uses extremely safe solid-state methanol in a fuel cartridge. | 03-18-2010 |
| 20100044311 | METHOD AND APPARATUS FOR FURTHER PURIFYING ULTRAPURE WATER - Disclosed are a method for further purifying ultrapure water, according to which any impurities in ultrapure water can be stably removed to a high degree within a small space over a prolonged period; and an apparatus therefor. Ultrapure water introduced into an ultrapure-water purifying apparatus | 02-25-2010 |
| 20100032387 | CLEANING AND STERILIZING METHOD FOR ULTRAPURE WATER MANUFACTURING SYSTEM - In a method of cleaning and sterilizing an ultrapure water manufacturing system including an ultrapure water manufacturing apparatus, a point of use of ultrapure water, and an ultrapure water channel connecting the ultrapure water manufacturing apparatus and the point of use, a cleaning and sterilizing process including an alkali cleaning step for cleaning at least part of the inside of the system with alkaline solution and a sterilizing step for sterilizing the system with sterile water after the alkali cleaning is treated twice or more. By treating the cleaning and sterilizing process twice or more, metals, organic substances, particles, and bacteria inside the ultrapure water manufacturing system can be highly efficiently removed, and thereby ultrapure water satisfying required water quality can be produced within a short period of time after the cleaning and sterilizing. | 02-11-2010 |
| 20100025329 | METHOD FOR TREATMENT WITH REVERSE OSMOSIS MEMBRANE - A method for treatment with a reverse osmosis membrane to reduce decrease in flux that occurs even under the conditions that water supplied to a reverse osmosis membrane treatment apparatus contains only a trace amount of iron and that the formation of scales of substances such as calcium and silica is prohibited. A method for performing a treatment with a reverse osmosis membrane to treat raw water containing iron at 1000 μg/L or less as total iron with a reverse osmosis membrane, including a step of adding a compound having a sulfo group to the raw water. | 02-04-2010 |
| 20090283471 | Apparatus and Method for Treating Organic-Containing Wastewater - In treating organic-containing wastewater by a biological treatment in a stage prior to a advanced treatment such as membrane separation or the like, the amount of the biological metabolites produced in the biological treatment step is reduced to reduce the amount of the organic substances flowing into the advanced treatment step in a latter stage, thereby making the advanced treatment stable and efficient and efficiently recovering treated water of high quality. Water anaerobically biologically treated in an anaerobic reaction tank | 11-19-2009 |
| 20090277832 | Method for biological disposal of organic wastewater and biological disposal apparatus - A biological treatment method and device for organic wastewater, whereby the amount of minute organisms which reduce the amount of excess sludge and held within an activated sludge tank can be stabilized so that the treatment can be stabilized, are provided. Substrates for growing dispersed bacteria and/or dispersed bacteria are supplied to a sludge treatment tank | 11-12-2009 |
| 20090165829 | Process for Producing Gas-Containing Cleaning Water, Apparatus for Producing the Cleaning Water and Cleaning Apparatus - A process for producing a gas-containing cleaning water which contains a specific gas dissolved in water, which process comprises dissolving the specific gas into water under an increased pressure exceeding an atmospheric pressure to prepare a gas-containing water having a concentration of the gas exceeding solubility of the gas under an atmospheric pressure and, then, removing a portion of the dissolved gas by decreasing pressure on the gas-containing water; an apparatus for producing a gas-containing cleaning water which comprises an apparatus for dissolving a gas ( | 07-02-2009 |
| 20090165370 | Method for Producing a Solid Fuel for Fuel Cells, Method for Controlling Vaporization of a Fuel for Fuel Cells, Solid Fuel for Fuel Cells, and Fuel Cell - A solid fuel for fuel cells is produced by introducing a fuel for fuel cells into a porous material, molding an obtained fuel-carrying material to a predetermined shape and forming a coating film on the surface of an obtained molded fuel-carrying material. Further, a solid fuel for fuel cells is produced by introducing water and a fuel for fuel cells into a porous material, molding an obtained fuel-carrying material to a predetermined shape and forming a coating film on the surface of an obtained molded fuel-carrying material. A solid fuel for fuel cells excellent in handleability can be produced thereby, while the safety of the fuel for fuel cells is improved by controlling the vaporization of the fuel for fuel cells. | 07-02-2009 |
| 20090095674 | Method and eqipment for biological treatment of organic wastewater - A method of biological treatment of organic wastewater includes a biological treatment step for introducing organic wastewater to a biological treatment tank and biologically treating the organic wastewater; and a solid-liquid separation step for separating biologically treated liquid in the biological treatment tank into sludge and treated water. The method further includes a sludge treatment step for introducing a portion of the sludge in the biological treatment tank and/or at least a portion of the sludge separated in the solid-liquid separation step into a sludge treatment tank having a submerged filter element with a pore diameter of 5 to 100 μm in the tank and subjecting the sludge to aerobic biological treatment; and a permeated liquid-returning step for returning the liquid permeated through the submerged filter element to the biological treatment tank. | 04-16-2009 |
| 20090078909 | Method for storing hydrogen - An object is to provide a method for storing hydrogen that allows hydrogen to be easily stored and easily released, and the method comprises cooling a liquid mixture of a carbon compound capable of forming a molecular compound and a protic polar solvent while bringing hydrogen into contact with the liquid mixture, to form thereby a solid substance having hydrogen enclosed therein; as a result, the carbon compound capable of forming a molecular compound becomes caged in a clathrate that does not readily enclose hydrogen, unless under ultrahigh pressure; the carbon compound forms a molecular compound with the hydrogen, while a clathrate capable of enclosing the hydrogen therein under high-pressure conditions also forms a hydrogen clathrate, thereby allowing to increase hydrogen storage density; and the hydrogen can be stored thus by maintaining the state of the solid substance, and can be easily extracted by simply dissolving the solid substance in water. | 03-26-2009 |
| 20090032466 | Agent for Increasing Rejection with a Permeable Membrane, Process for Increasing the Rejection, Permeable Membrane and Process for Water Treatment - An agent for increasing the rejection with a permeable membrane which comprises an ionic macromolecule having a weight-average molecular weight of 100,000 or greater; a process for increasing the rejection with a permeable membrane which comprises treating a permeable membrane with the agent; a permeable membrane which is treated in accordance with the process; and a process for water treatment which comprises using the permeable membrane are disclosed. By using the above agent, an increased rejection of inorganic electrolytes and organic compounds soluble in water can be maintained for a long time easily and safely at the location of the use of the membrane without extreme decrease in the flux of permeation in the membrane separation using a selective permeable membrane such as a nano filtration membrane and a reverse osmosis membrane. | 02-05-2009 |
| 20090014028 | METHOD OF CLEANING SUBSTRATES AND SUBSTRATE CLEANER - There is provided a method of efficiently cleaning substrates without damaging a fine pattern formed thereon. It is a method of cleaning one or more substrates in a system processing one or more substrates as one batch by dipping one or more substrates as one batch, including the steps of: immersing one or more substrates as one batch in a wet etching solution; ultrasonically cleaning one or more substrates as one batch; and drying one or more substrates as one batch. The step of ultrasonically cleaning employs a cleaning solution having a gas dissolved therein to have a degree of saturation of 60% to 100% at an atmospheric pressure, and an ultrasonic wave having a frequency of at least 500 kHz and an energy of 0.02 W/cm | 01-15-2009 |
| 20080251108 | Sulfuric Acid Recycling Type Cleaning System and a Sulfuric Acid Recycling Type Persulfuric Acid Supply Apparatus - If incorporated in a cleaning system using persulfuric acid, the invention serves for continuous cleaning while increasing the persulfuric acid concentration adequately to ensure enhanced cleaning performance. The invention provides a feeding apparatus that feeds persulfuric acid to a cleaning apparatus. The cleaning system uses an electrolysis reactor | 10-16-2008 |
| 20080233438 | Fuel for fuel cell, fuel cell and application thereof - A fuel cell fuel contains an organic fuel used as a fuel for a fuel cell. The organic fuel is in a form of a solid molecular compound, such as an inclusion compound. The molecular compound can be prepared by contact catalytic reaction of a compound for forming the molecular compound and the organic fuel, and allows a liquid organic fuel to be in a solid compound to store the organic fuel stably in a relatively lightweight form. The molecular compound easily releases the organic fuel by, for example, heating, and the organic fuel is supplied to the fuel electrode of a fuel cell. Thus, the handleability of the fuel cell fuel containing the organic fuel can be improved, and the problems of corrosion, freezing of the fuel, crossover, and so forth can be solved. | 09-25-2008 |
