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公开(公告)号：AT450478T
公开(公告)日：2009-12-15
申请号：AT02258342
申请日：2002-12-03
Applicant: TODA KOGYO CORP
Inventor： UEGAMI MASAYUKI , KAWANO JUNICHI , OKITA TOMOKO , FUJII YASUHIKO , OKINAKA KENJI , KAKUYA KOJI , YATAGAI SOICHI
IPC: B09C1/02 , C02F1/70 , A62D3/00 , B09C1/00 , B09C1/08 , C01G49/00 , C01G49/06 , C01G49/08 , C02F1/28 , C02F1/62
Abstract: Iron particles for purifying soil or ground water comprise a mixed phase of ±-Fe phase and Fe 3 O 4 phase and have a BET specific surface area of 5 to 60 m 2 /g, an Fe content of not less than 75% by weight based on the weight of the iron particles and a sulfur content of not less than 1,000 ppm. The iron particles are capable of decomposing or insolubilizing harmful substances such as organohalogen compounds and/or heavy metals, cyanogen, etc. contained in the soil or ground water in an efficient, continuous and economical manner.
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公开(公告)号：ES2336429T3
公开(公告)日：2010-04-13
申请号：ES02258342
申请日：2002-12-03
Applicant: TODA KOGYO CORP
Inventor： UEGAMI MASAYUKI , KAWANO JUNICHI , OKITA TOMOKO , FUJII YASUHIKO , OKINAKA KENJI , KAKUYA KOJI
IPC: B09C1/02 , C02F1/70 , A62D3/00 , B09C1/00 , B09C1/08 , C01G49/00 , C01G49/06 , C01G49/08 , C02F1/28 , C02F1/62
Abstract: Partículas de hierro para purificar tierra o agua subterránea, que comprenden una fase mixta de fase α-Fe y fase Fe3O4 y que poseen una superficie específica BET de 5 a 60 m2/g, un contenido de Fe no menor que 75% en peso sobre la base del peso de las partículas de hierro y un contenido de azufre no menor que 1.000 ppm.
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公开(公告)号：DE69932230D1
公开(公告)日：2006-08-17
申请号：DE69932230
申请日：1999-05-04
Applicant: TODA KOGYO CORP , NAIKAI PLANT K K
Inventor： IMAI TOMOYUKI , MATSUI TOSHIKI , FUJII YASUHIKO , HATAKEYAMA SATOSHI , TSUTSUMI KOJIRO , OKITA TOMOKO , INOUE HIROSHI , BABA TATSUAKI , ISHIHARA MASAKI , OKAMURA TAKASHI
IPC: B01D53/86 , B01J23/745
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公开(公告)号：DE60234568D1
公开(公告)日：2010-01-14
申请号：DE60234568
申请日：2002-12-03
Applicant: TODA KOGYO CORP
Inventor： UEGAMI MASAYUKI , KAWANO JUNICHI , OKITA TOMOKO , FUJII YASUHIKO , OKINAKA KENJI , KAKUYA KOJI , YATAGAI SOICHI
IPC: B09C1/02 , C01G49/02 , A62D3/00 , B09C1/00 , B09C1/08 , C01G49/00 , C01G49/06 , C01G49/08 , C02F1/28 , C02F1/62
Abstract: Iron particles for purifying soil or ground water comprise a mixed phase of ±-Fe phase and Fe 3 O 4 phase and have a BET specific surface area of 5 to 60 m 2 /g, an Fe content of not less than 75% by weight based on the weight of the iron particles and a sulfur content of not less than 1,000 ppm. The iron particles are capable of decomposing or insolubilizing harmful substances such as organohalogen compounds and/or heavy metals, cyanogen, etc. contained in the soil or ground water in an efficient, continuous and economical manner.
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公开(公告)号：AT400530T
公开(公告)日：2008-07-15
申请号：AT05257273
申请日：2005-11-25
Applicant: TODA KOGYO CORP
Inventor： KAGUYA KOJI , UEGAMI MASAYUKI , KAWANO JUNICHI , OKITA TOMOKO , OKINAKA KENJI , JAZDANIAN ANDREAS
IPC: C02F1/70 , A62D3/00 , A62D3/34 , A62D101/22 , B09C1/08 , C02F1/28 , C02F1/62 , C02F101/20 , C02F101/36 , C02F103/06
Abstract: A purifying agent for purifying soil or ground water which comprises a water suspension containing iron composite particles comprising ±-Fe and magnetite, and having an average particle diameter of 0.05 to 0.50 µm, an S content of 3500 to 10000 ppm and an A1 content of 0.10 to 1.50% by weight, and polyaspartic acid or a salt thereof. The purifying agent is capable of decomposing aliphatic organohalogen compounds or aromatic organohalogen compounds contained in the soil or ground water in an efficient, continuous and economical manner.
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Patent Agency Ranking
公开(公告)号：CA2781329A1
公开(公告)日：2011-05-26
申请号：CA2781329
申请日：2010-11-18
Applicant: TODA KOGYO CORP
Inventor： HAKATA TOSHIYUKI , OKITA TOMOKO
Abstract: Disclosed is a magnetic-particle-containing aqueous dispersion which has an average primary particle diameter of 5 to 15 nm, an average secondary particle diameter of 10 to 60 nm, and has a zeta potential of -20 mV or less at a pH falling within the range from pH6 to 8, wherein the surfaces of the magnetic powder are coated with a polymer having a carboxyl group. The magnetic-particle-containing aqueous dispersion can be produced by heating an aqueous solution having, dissolved therein, a polymer having a carboxyl group to a temperature falling within the range from 90 to 100°C in a nitrogen atmosphere, adding a solution containing a bivalent iron salt and a trivalent iron salt and an alkaline solution to the heated aqueous solution, causing the resulting mixture to react at that temperature, adding ethanol to the reaction solution to cause precipitation, removing a supernatant from the ethanol-precipitated solution, dissolving the resulting solution in water, and subjecting the resulting solution to dialysis. The magnetic-particle-containing aqueous dispersion is useful for the production of a magnetic-particle-containing medicinal agent for diagnostic purposes, therapeutic purposes or the like which can exhibit a homogeneous function with high reproducibility.
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公开(公告)号：DE69932230T2
公开(公告)日：2007-05-31
申请号：DE69932230
申请日：1999-05-04
Applicant: TODA KOGYO CORP , NAIKAI PLANT K K
Inventor： IMAI TOMOYUKI , MATSUI TOSHIKI , FUJII YASUHIKO , HATAKEYAMA SATOSHI , TSUTSUMI KOJIRO , OKITA TOMOKO , INOUE HIROSHI , BABA TATSUAKI , ISHIHARA MASAKI , OKAMURA TAKASHI
IPC: B01D53/86 , B01J23/745
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公开(公告)号：CA2322733A1
公开(公告)日：2001-04-14
申请号：CA2322733
申请日：2000-10-10
Applicant: TODA KOGYO CORP
Inventor： OKITA TOMOKO , HAKATA TOSHIYUKI
Abstract: Porous composite particles of the present invention comprises 80 to 98% by weight of a filling material and 2 to 20% by weight of carbon, and having an average pore diameter of not more than 5 nm when measured with respect to pores existing in both the surface and inside portions thereof, an average particle size of 1 to 1,000 .mu.m and a specific surface area of 45 to 200 m2/g. Such porous composite particles individually contain the filling material in as large an amount as possible. Therefore, the porous composite particles of the present invention have not only a high catalytic but also a high adsorption ability, thereby exhibiting an excellent catalytic activity.
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公开(公告)号：ES2675901T3
公开(公告)日：2018-07-13
申请号：ES10831610
申请日：2010-11-18
Applicant: TODA KOGYO CORP
Inventor： HAKATA TOSHIYUKI , OKITA TOMOKO
Abstract: Un proceso para producir partículas finas de óxido de hierro magnético que tienen un diámetro medio de partícula primaria de 5 a 15 nm y un diámetro medio de partícula secundaria de 10 a 60 nm, estando un a superficie de las respectivas partículas finas de óxido de hierro magnético revestidas con un polímero que contiene un grupo carboxilo, proceso que comprende las etapas de: calentar una solución acuosa en la que se disuelve el polímero que contiene un grupo carboxilo a una temperatura de 90 a 100 °C en una atmósfera de nitrógeno; añadir una solución de una sal ferrosa (II) y una sal férrica (III) y una solución alcalina a la solución acuosa para que reaccionen entre sí a la misma temperatura; enfriar la solución resultante a temperatura ambiente y luego añadir etanol a la solución resultante para obtener un precipitado; eliminar un líquido sobrenadante de la solución y luego dispersar el precipitado en agua y someter la dispersión resultante a diálisis para obtener una dispersión acuosa que comprende las partículas finas de óxido de hierro magnético cuya superficie está revestida con el polímero que contiene un grupo carboxilo; y liofilizar la dispersión acuosa para obtener partículas finas de óxido de hierro magnético
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公开(公告)号：CA2809511A1
公开(公告)日：2012-03-08
申请号：CA2809511
申请日：2011-08-29
Applicant: TODA KOGYO CORP
Inventor： YAMAMOTO AKINORI , OKITA TOMOKO , YAMAMOTO HIROSHI , MORI KOHJI , KOGA KAZUMICHI , KAJIYAMA AKIHISA
Abstract: Provided are a lithium titanate particulate powder that displays excellent initial discharge capacity and a high discharge capacity maintenance rate as an active substance for a non-aqueous electrolyte secondary battery as well as having reduced gas emissions, a production method for same, and a Mg-containing lithium titanate powder. The present invention includes: a lithium titanate particulate powder with a spinel structure, wherein, when an index is applied by Fd-3m in XRD, the TiO2 volume by Reitveld analysis is 1.5% or less and the Li2TiO3 volume is 1%-6%, the Li4Ti5O12 volume is 94%-99%, and the BET specific surface area is 7-15m2/g; and a Mg-containing lithium titanate particulate powder with a composition indicated by LixMgyTizO4 (wherein x, z>0, 0.01?y?0.20, 0.01?y/z?0.10, and 0.5?(x+y)/z?1.0), a BET specific surface area of 5-50m2/g, a single-phase spinel type crystal structure, and a lattice constant (a) with a value indicated by 0.050y+8.3595
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