Patents Assigned to Katayama Chemical, Inc.
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Patent number: 9546452Abstract: A method of producing a paper board comprising: a pulping step of disintegrating and beating fibers from a pulp raw material containing waste paper as a main raw material to obtain pulping process water; a stock preparation step of adding an additive containing a paper strength additive to the obtained pulping process water to obtain a prepared pulp raw material; and a paper-making step of making the obtained prepared pulp raw material into a paper board, wherein the paper board is produced by adding (a) an aqueous solution of hypochlorite and (b) an aqueous solution of water-soluble inorganic ammonium salt or ammonia water to the pulping process water to reduce the amount of the paper strength additive added in the stock preparation step.Type: GrantFiled: June 24, 2013Date of Patent: January 17, 2017Assignees: KATAYAMA CHEMICAL, INC., NALCO JAPAN G.K.Inventors: Takahito Ikeshita, Yuji Fuchino, Hideaki Shimomoto, Hiroshi Hasegawa
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Publication number: 20150167248Abstract: A method of producing a paper board comprising: a pulping step of disintegrating and beating fibers from a pulp raw material containing waste paper as a main raw material to obtain pulping process water; a stock preparation step of adding an additive containing a paper strength additive to the obtained pulping process water to obtain a prepared pulp raw material; and a paper-making step of making the obtained prepared pulp raw material into a paper board, wherein the paper board is produced by adding (a) an aqueous solution of hypochlorite and (b) an aqueous solution of water-soluble inorganic ammonium salt or ammonia water to the pulping process water to reduce the amount of the paper strength additive added in the stock preparation step.Type: ApplicationFiled: June 24, 2013Publication date: June 18, 2015Applicants: KATAYAMA CHEMICAL, INC., NALCO JAPAN G.K.Inventors: Takahito Ikeshita, Yuji Fuchino, Hideaki Shimomoto, Hiroshi Hasegawa
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Publication number: 20130327718Abstract: A device comprising a measuring device for determining the flow rate of a water stream, a measuring device for determining the concentration of hydrogen peroxide in the water stream, a measuring device for determining the concentration of peracetic acid in the water stream, a metering device for metering a reducing agent into the water stream downstream of the measuring devices for the concentrations, and a control device which, from the flow rate of the water stream, the concentration of hydrogen peroxide in the water stream and the concentration of peracetic acid in the water stream, calculates an amount of reducing agent for reducing the content of hydrogen peroxide and peracetic acid to a desired value and actuates the metering device for metering the reducing agent, makes possible reliable reduction of the content of hydrogen peroxide and peracetic acid in a water stream.Type: ApplicationFiled: January 19, 2012Publication date: December 12, 2013Applicants: Katayama Chemical, Inc., Evonik Degussa GmbHInventors: Walter Adami, Hubert Angert, Bernhard König, Steffen Krück, Frank Dieter Kuhn, Martin Lietzenmayer, Egon Walzer, Corinna Schmidt, Nobuhiro Muraoka
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Patent number: 8123958Abstract: A method for treating ship ballast water in which aquatic organisms in the ship ballast water are exterminated by adding hydrogen peroxide or a compound producing hydrogen peroxide in an amount such that a hydrogen peroxide concentration comes to be 10 to 500 mg/L to the ship ballast water, and then providing physical means for causing shear strength and/or cavitation to the ship ballast water.Type: GrantFiled: February 17, 2006Date of Patent: February 28, 2012Assignees: Katayama Chemical, Inc., The Japan Association of Marine Safety, Marine Technology Institute Co., Ltd., Laboratory of Aquatic Science Consultant Corporation, M.O. Marine Consulting, Ltd., Mitsui Engineering & Shipbuilding Co., Ltd., Shinko Ind. Ltd.Inventors: Yasuo Fukuyo, Yoshiharu Wakao, Takuro Tabuchi, Takashi Mizumori, Takeaki Kikuchi
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Publication number: 20090294382Abstract: A method for treating ship ballast water in which aquatic organisms in the ship ballast water are exterminated by adding hydrogen peroxide or a compound producing hydrogen peroxide in an amount such that a hydrogen peroxide concentration comes to be 10 to 500 mg/L to the ship ballast water, and then providing physical means for causing shear strength and/or cavitation to the ship ballast water.Type: ApplicationFiled: February 17, 2006Publication date: December 3, 2009Applicants: KATAYAMA CHEMICAL, INC., MARINE TECHNOLOGY INSTITUTE CO., LTD., LABORATORY OF AQUATIC SCIENCE CONSULTANT CORPORATION, M.O. MARINE CONSULTING, LTD., MITSUI ENGINEERING & SHIPBUILDING CO., LTD., SHINKO IND. LTD.Inventors: Yasuo Fukuyo, Yoshiharu Wakao, Takuro Tabuchi, Takashi Mizumori, Takeaki Kikuchi
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Patent number: 7618545Abstract: A method for treating ship ballast water in which organisms viable in the ship ballast water are exterminated by adding to the ship ballast water hydrogen peroxide or a compound producing hydrogen peroxide in an amount such that a hydrogen peroxide concentration comes to be 10 to 500 mg/L and at least one type selected from a ferrous ion or a compound supplying ferrous ion in an amount such that a ferrous ion concentration comes to be 0.1 to 400 mg/L, catalase in an amount such that a concentration of catalase comes to be 0.5 to 2,500 unit/L and iodine or a compound supplying iodine amount such that an iodine concentration comes to be 0.1 to 100 mg/L.Type: GrantFiled: June 17, 2005Date of Patent: November 17, 2009Assignee: Katayama Chemical, Inc.Inventors: Yoshiharu Wakao, Takuro Tabuchi, Takashi Mizumori
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Electrolytic cell and process for the production of hydrogen peroxide solution and hypochlorous acid
Patent number: 6773575Abstract: An electrolytic cell and process for the simultaneous production of hydrogen peroxide and hypochlorous ion. The electrolytic cell has an anode chamber housing an insoluble anode capable of oxidizing halide ion, a cathode chamber housing a gas diffusion cathode capable of oxidizing an oxygen-containing gas to produce hydrogen peroxide, a membrane separating the anode and cathode chambers, and means for supplying water containing halide ion to the anode chamber and an oxygen-containing gas and an electrolyte to the cathode chamber, whereby hypohalide and hydrogen peroxide are produced in the anode chamber and the cathode chamber, respectively. Also disclosed is a process for treating water using the electrolytic cell.Type: GrantFiled: March 22, 2002Date of Patent: August 10, 2004Assignees: Permelec Electrode Ltd., Katayama Chemical, Inc.Inventors: Yasuo Nakajima, Yoshinori Nishiki, Genzo Yamane, Masaharu Uno, Akira Katsumoto, Kunio Nishimura -
Patent number: 6761815Abstract: A process for the production of hydrogen peroxide solution from seawater as a starting material substantially free of effective chlorine or organic halogen compounds. An electric current is passed through an insoluble anode and an oxygen gas diffusion cathode while keeping the halide ion concentration of anolyte supplied to the anode chamber to a level not greater than 1 g/l. Hydrogen peroxide thus generated dissolves in the catholyte. Anodic oxidation of halide ions is suppressed, to thereby inhibit the production of effective chlorine.Type: GrantFiled: March 13, 2002Date of Patent: July 13, 2004Assignees: Permelec Electrode Ltd., Katayama Chemical Inc.Inventors: Yasuo Nakajima, Yoshinori Nishiki, Masaharu Uno, Akira Katsumoto, Kunio Nishimura
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Patent number: 6461649Abstract: The present invention provides a composition for the improvement of the quality of a flour-baked composition such as bread and sponge cake, which comprises, (a) 0.005 to 2 parts by weight of a cereal protein partial decomposition product having a weight average molecular weight (Mw) of about 5,000 to about 90,000, and (b) 1 to 1,500 units of at least one enzyme selected from an amylase, a lipase, and ascorbate oxidase. The present invention also provides the method for improving the quality of a flour-baked composition, quality improved dough using the same, and quality improved baked composition using the same.Type: GrantFiled: April 7, 2000Date of Patent: October 8, 2002Assignee: Katayama Chemical, Inc.Inventors: Akio Ogisu, Kenji Hanno
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Electrolytic cell and process for the production of hydrogen peroxide solution and hypochlorous acid
Publication number: 20020134687Abstract: An electrolytic cell and process for the simultaneous production of hydrogen peroxide and hypochlorous ion. The electrolytic cell has an anode chamber housing an insoluble anode capable of oxidizing halide ion, a cathode chamber housing a gas diffusion cathode capable of oxidizing an oxygen-containing gas to produce hydrogen peroxide, a membrane separating the anode and cathode chambers, and means for supplying water containing halide ion to the anode chamber and an oxygen-containing gas and an electrolyte to the cathode chamber, whereby hypohalide and hydrogen peroxide are produced in the anode chamber and the cathode chamber, respectively. Also disclosed is a process for treating water using the electrolytic cell.Type: ApplicationFiled: March 22, 2002Publication date: September 26, 2002Applicant: PERMELEC ELECTRODE LTD., and KATAYAMA CHEMICAL, INC.Inventors: Yasuo Nakajima, Yoshinori Nishiki, Genzo Yamane, Masaharu Uno, Akira Katsumoto, Kunio Nishimura -
Patent number: 6106770Abstract: A method for preventing obstruction in aluminum brass pipes in a water flow path, including the steps of continuously supplying iron ions or an iron ion supply compound to water in the water flow path in such a manner that a concentration of iron ions in the water is 0.005 to 0.05 mg/liter, and supplying hydrogen peroxide or a hydrogen peroxide supply compound for a period of time sufficient for preventing adhesion of organisms to the aluminum brass pipes but not impeditive to formation of corrosion-resistant coating inside the pipes, in such a manner that a concentration of hydrogen peroxide in the water is 0.1 to 1.5 mg/liter, whereby corrosion of aluminum brass pipes and adhesion of organisms to the pipes are prevented.Type: GrantFiled: July 6, 1998Date of Patent: August 22, 2000Assignees: Mitsubishi Gas Chemical Company Inc., Katayama Chemical Inc.Inventors: Keiji Ohki, Kunio Nishimura, Yoshiharu Wakao
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Patent number: 6045684Abstract: An on-site process and apparatus for producing hydrogen peroxide at a high efficiency substantially from brine and oxygen-containing gas alone as raw materials while removing alkaline earth metals. Sea water concentrated by an electrodialytic apparatus 2 or the like as a raw material is supplied to an impurity removing apparatus 10 where caustic soda produced in an acid-alkali producing apparatus 11 at a subsequent stage and/or carbon dioxide gas is added to remove alkaline earth metals contained in sea water in the form of a hydroxide or carbonate precipitate. Separately, the acid-alkali producing apparatus 11 performs a salt separating operation to produce caustic soda which is then supplied to a hydrogen peroxide generator 28 to produce an alkaline aqueous solution of hydrogen peroxide.Type: GrantFiled: April 16, 1998Date of Patent: April 4, 2000Assignees: Permelec Electrode Ltd., Katayama Chemical, Inc.Inventors: Shuhei Wakita, Masaharu Uno, Takayuki Shimamune, Yoshinori Nishiki, Kunio Nishimura
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Patent number: 5912389Abstract: A stabilizer for an aqueous aliphatic aldehyde solution comprising acetic acid, a halogenated acetic acid or a compound capable of releasing acetic acid or a halogenated acetic acid in water.Type: GrantFiled: October 14, 1997Date of Patent: June 15, 1999Assignee: Katayama Chemical, Inc.Inventor: Shinichi Matsumoto
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Patent number: 5760091Abstract: A preventive agent against adhesion of a marine organism comprising: at least one amine compound represented by the following formula (I): ##STR1## , wherein R is a C.sub.8-22 saturated or unsaturated aliphatic hydrocarbon group, R.sup.1 is hydrogen atom, aminopropyl, a C.sub.1-22 saturated aliphatic hydrocarbon or C.sub.2-22 unsaturated aliphatic hydrocarbon group, R.sup.2 is aminopropyl, a C.sub.1-8 saturated aliphatic hydrocarbon or C.sub.2-8 unsaturated aliphatic hydrocarbon group, provided that R.sup.1 is hydrogen atom or aminopropyl group when R.sup.2 is represents aminopropyl group, or a salt thereof; and at least one N-alkyl polyamine compound represented by the following formula (II):R--?NH(CH.sub.2).sub.3 !.sub.n --NH.sub.2 (II), wherein R is a C.sub.8-22 saturated or unsaturated aliphatic hydrocarbon group and n is an integer from 2 to 4, or a salt thereof in an amount of 0.1 to 9 parts by weight to one part by weight of the compound (I).Type: GrantFiled: March 20, 1996Date of Patent: June 2, 1998Assignee: Katayama Chemical, Inc.Inventors: Yoshiharu Wakao, Toru Yasunaga
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Patent number: 5591759Abstract: An aqueous isothiazolone formulation useful for antiseptic or antifungal treatment of various synthetic polymeric emulsions, which comprises (a) a specific isothiazolone compound, (b) water or an aqueous solvent and (c) a specific nitrobromo or cyanobromo compound.Type: GrantFiled: January 24, 1994Date of Patent: January 7, 1997Assignee: Katayama Chemical, Inc.Inventors: Yosuke Ito, Yoichi Sano, Katsuji Tsuji, Sakae Katayama
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Patent number: 5416248Abstract: A method of removing volatile chlorinated hydrocarbon base materials contained in soil is provided wherein an inorganic compound that is an oxide of an alkali metal or an alkaline earth metal or a sulfate of an alkaline earth metal, which undergoes an exothermic reaction with water, is mixed in powder or granular form with soil containing a water content of 10% to 30% by weight and volatile chlorinated hydrocarbon base material having a normal boiling point in the range of about 60.degree. to about 120.degree. C., the inorganic compound being mixed with the soil in an amount of 0.01 to 0.5 times the weight of the water content.Type: GrantFiled: October 19, 1992Date of Patent: May 16, 1995Assignees: Mitsubishi Denki Kabushiki Kaisha, Katayama Chemical, Inc.Inventors: Mamoru Matsumoto, Yutaka Morita, Junji Hayashi, Takashi Syouji, Hideo Kawamoto
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Patent number: 5411990Abstract: An industrial microbicide which comprises at least one haloglyoxime derivative of the formula (I): ##STR1## wherein X is a halogen atom; Y is a hydrogen atom, a halogen atom or a lower alkyl group having 1 to 4 carbon atoms; and Z is a hydrogen atom or an optionally halogenated lower alkanoyl group having 1 to 5 carbon atoms; and a known industrial microbicidal ingredient selected from the group consisting of an organonitrogen-sulfur compound, an organohalogen compound, an organonitrogen compound and an organosulfur compound; and optionally a carrier or diluent.Type: GrantFiled: May 17, 1993Date of Patent: May 2, 1995Assignees: Yoshitomi Pharmaceutical Industries Ltd., Katayama Chemical Inc.Inventors: Katsuji Tsuji, Hidenori Hirashima
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Patent number: 5366661Abstract: A method for forming a stabilized aqueous dispersion which is useful for reducing viscosity of a stabilized aqueous dispersion wherein various water-insoluble or sparingly soluble inorganic and/or organic particles for food stuffs are suspended, accelerating suspension and dispersion of the various particles, and preventing sedimentation of the suspended particles.Type: GrantFiled: June 2, 1992Date of Patent: November 22, 1994Assignee: Katayama Chemical, Inc.Inventors: Sakae Katayama, deceased, Atsushi Tsuda, Kenzi Hanno
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Patent number: 5306725Abstract: A stabilized isothiazolone liquid formulation including:an isothiazolone compound represented by the formula (I): ##STR1## (where X represents a hydrogen atom or halogen atom, and Y represents a lower alkyl group), anda mixed solvent containing 50-99.9 wt. % of a glycol-type solvent and 50-0.1 wt. % of an amide-type compound represented by the formula (II): ##STR2## where R.sub.1 represents a hydrogen atom or a lower alkyl group, R.sub.2 and R.sub.3 each represent a lower alkyl group, R.sub.1 may bond to R.sub.2 or R.sub.3 to form a nitrogen-containing heterocycle),the compound of the formula (I) being dissolved in the mixed solvent of which amount is at least sufficient to dissolve the compound of the formula (I).Type: GrantFiled: October 30, 1992Date of Patent: April 26, 1994Assignee: Katayama Chemical Inc.Inventors: Yoichi Sano, Katsuji Tsuji, Sakae Katayama, deceased
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Patent number: 5256423Abstract: A method for destroying cyst of noxious plankton, which comprises mixing in ballast water hydrogen peroxide or a compound producing the same and maintaining an effective concentration thereof for destroying cyst of noxious plankton.Type: GrantFiled: October 4, 1991Date of Patent: October 26, 1993Assignee: Katayama Chemical, Inc.Inventors: Syuzo Egusa, Yasuo Fukuyo