Patents by Inventor Ichiro Ibuki
Ichiro Ibuki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8771742Abstract: A porous cellulose aggregate characterized by having a secondary aggregate structure resulting from aggregation of primary cellulose particles, having a pore volume within a particle of 0.265 to 2.625 cm3/g, containing I-type crystals and having an average particle size of over 30 to 250 ?m, a specific surface area of 0.1 to less than 20 m2/g, a repose angle of 25° to less than 44° and a swelling degree of 5% or more, and characterized by having the property of disintegrating in water.Type: GrantFiled: November 9, 2010Date of Patent: July 8, 2014Assignee: Asahi Kasei Chemicals CorporationInventors: Kazuhiro Obae, Hideki Amakawa, Ichiro Ibuki
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Patent number: 8597686Abstract: A porous cellulose aggregate which has a secondary aggregation structure formed by the aggregation of primary cellulose particles, has a pore volume within a particle of 0.265 cm3/g to 2.625 cm3/g, contains I type crystals, has an average particle diameter of more than 30 ?m and 250 ?m or less, has a specific surface area of 1.3 to 20 cm2/g, has an angle of repose of 25° or more and less than 44°, and has the property that it collapses in water.Type: GrantFiled: January 27, 2005Date of Patent: December 3, 2013Assignee: Asahi Kasei Chemicals CorporationInventors: Naoaki Yamasaki, Kazuhiro Obae, Ichiro Ibuki
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Patent number: 8431618Abstract: Disclosed are a processed starch powder in which the amount of water soluble component is greater than 2 wt % but less than 10 wt %, the water retention amount is greater than 600% and 1500% or less, and which comprises nonbirefringent particles, and a manufacturing method thereof.Type: GrantFiled: March 30, 2009Date of Patent: April 30, 2013Assignees: Asahi Kasei Chemicals Corporation, Sanwa Cornstarch Co., Ltd.Inventors: Masaaki Endo, Shozo Kaneyama, Kazuhiro Obae, Ichiro Ibuki, Michihiro Sunako, Eishi Wakamiya
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Patent number: 8349365Abstract: Disclosed is a cellooligosaccharide composition comprising, as the main ingredient, at least one cellooligosaccharide selected from the group consisting of cellobiose, cellotriose, cellotetraose, cellopentaose and cellohexaose, which is in the powdery form having an average L/D value of 3.0 or lower, a bulk density of 0.80 g/mL or lower and an angle of repose of 60° or lower.Type: GrantFiled: September 27, 2006Date of Patent: January 8, 2013Assignee: Asahi Kasei Chemicals CorporationInventors: Naoaki Yamasaki, Ichiro Ibuki, Yoshihito Yaginuma, Yoshinaga Tamura
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Patent number: 8153157Abstract: A porous cellulose aggregate characterized by having a secondary aggregate structure resulting from aggregation of primary cellulose particles, having a pore volume within a particle of 0.265 to 2.625 cm3/g, containing I-type crystals and having an average particle size of over 30 to 250 ?m, a specific surface area of 0.1 to less than 20 m2/g, a repose angle of 25° to less than 44° and a swelling degree of 5% or more, and characterized by having the property of disintegrating in water.Type: GrantFiled: April 21, 2006Date of Patent: April 10, 2012Assignee: Asahi Kasei Chemicals CorporationInventors: Kazuhiro Obae, Hideki Amakawa, Ichiro Ibuki
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Publication number: 20120045636Abstract: A porous cellulose aggregate characterized by having a secondary aggregate structure resulting from aggregation of primary cellulose particles, having a pore volume within a particle of 0.265 to 2.625 cm3/g, containing I-type crystals and having an average particle size of over 30 to 250 ?m, a specific surface area of 0.1 to less than 20 m2/g, a repose angle of 25° to less than 44° and a swelling degree of 5% or more, and characterized by having the property of disintegrating in water.Type: ApplicationFiled: November 1, 2011Publication date: February 23, 2012Applicant: ASAHI KASEI CHEMICALS CORPORATIONInventors: Kazuhiro Obae, Hideki Amakawa, Ichiro Ibuki
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Patent number: 7947656Abstract: A process of producing cellooligosaccharide, comprising enzymatically decomposing, in the presence of cellulase, a water-insoluble natural cellulosic material having an average degree of polymerization not greater than 700, an average particle size not greater than 100. A process of producing cellooligosaccharide, comprising enzymatically decomposing, in the presence of cellulase, a water-insoluble natural cellulosic material having an average degree of polymerization not greater than 700, containing 10% or more by mass of a colloidal cellulose component and a diethyl ether-soluble substance content less than 1% by mass.Type: GrantFiled: July 26, 2005Date of Patent: May 24, 2011Assignee: Asahi Kasei Chemicals CorporationInventors: Naoaki Yamasaki, Ichiro Ibuki, Koji Isaka
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Publication number: 20110064805Abstract: A porous cellulose aggregate characterized by having a secondary aggregate structure resulting from aggregation of primary cellulose particles, having a pore volume within a particle of 0.265 to 2.625 cm3/g, containing I-type crystals and having an average particle size of over 30 to 250 ?m, a specific surface area of 0.1 to less than 20 m2/g, a repose angle of 25° to less than 44° and a swelling degree of 5% or more, and characterized by having the property of disintegrating in water.Type: ApplicationFiled: November 9, 2010Publication date: March 17, 2011Applicant: ASAHI KASEI CHEMICALS CORPORATIONInventors: Kazuhiro Obae, Hideki Amakawa, Ichiro Ibuki
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Publication number: 20110021643Abstract: Disclosed are a processed starch powder in which the amount of water soluble component is greater than 2 wt % but less than 10 wt %, the water retention amount is greater than 600% and 1500% or less, and which comprises nonbirefringent particles, and a manufacturing method thereof.Type: ApplicationFiled: March 30, 2009Publication date: January 27, 2011Applicants: ASAHI KASEI CHEMICALS CORPORATION, SANWA CORNSTARCH CO., LTD.Inventors: Masaaki Endo, Shozo Kaneyama, Kazuhiro Obae, Ichiro Ibuki, Michihiro Sunako, Eishi Wakamiya
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Patent number: 7795240Abstract: A ?-glucan derivative comprising a ?-glucan residue of three or more glucose residues and, chemically bonded to the ?-glucan residue, a non-reducing sugar residue.Type: GrantFiled: November 26, 2004Date of Patent: September 14, 2010Assignee: Asahi Kasei Chemicals CorporationInventors: Kazuhiro Obae, Ichiro Ibuki, Hirokazu Matsui, Hiroyuki Ito, Kenji Watanabe
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Publication number: 20090232892Abstract: Disclosed is a cellooligosaccharide composition comprising, as the main ingredient, at least one cellooligosaccharide selected from the group consisting of cellobiose, cellotriose, cellotetraose, cellopentaose and cellohexaose, which is in the powdery form having an average L/D value of 3.0 or lower, a bulk density of 0.80 g/mL or lower and an angle of repose of 60° or lower.Type: ApplicationFiled: September 27, 2006Publication date: September 17, 2009Inventors: Naoaki Yamasaki, Ichiro Ibuki, Yoshihito Yaginuma, Yoshinaga Tamura
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Patent number: 7514552Abstract: A cellulose powder which has an average degree of polymerization of 150 to 450, an average particle diameter of 30 to 250 ?m, an apparent specific volume exceeding 7 cm3/g, and a retention of polyethylene glycol having a molecular weight of 400 to 190% or higher.Type: GrantFiled: May 28, 2004Date of Patent: April 7, 2009Assignee: Asahi Kasei Chemicals CorporationInventors: Naoaki Yamasaki, Kazuhiro Obae, Ichiro Ibuki
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Publication number: 20090022791Abstract: A porous cellulose aggregate characterized by having a secondary aggregate structure resulting from aggregation of primary cellulose particles, having a pore volume within a particle of 0.265 to 2.625 cm3/g, containing I-type crystals and having an average particle size of over 30 to 250 ?m, a specific surface area of 0.1 to less than 20 m2/g, a repose angle of 25° to less than 44° and a swelling degree of 5% or more, and characterized by having the property of disintegrating in water.Type: ApplicationFiled: April 21, 2006Publication date: January 22, 2009Inventors: Kazuhiro Obae, Hideki Amakawa, Ichiro Ibuki
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Publication number: 20070207108Abstract: A process of producing cellooligosaccharide, comprising enzymatically decomposing, in the presence of cellulase, a water-insoluble natural cellulosic material having an average degree of polymerization not greater than 700, an average particle size not greater than 100. A process of producing cellooligosaccharide, comprising enzymatically decomposing, in the presence of cellulase, a water-insoluble natural cellulosic material having an average degree of polymerization not greater than 700, containing 10% or more by mass of a colloidal cellulose component and a diethyl ether-soluble substance content less than 1% by mass.Type: ApplicationFiled: July 26, 2005Publication date: September 6, 2007Applicant: ASAHI KASEI CHEMICALS CORPORATIONInventors: Naoaki Yamasaki, Ichiro Ibuki, Koji Isaka
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Publication number: 20070190017Abstract: A porous cellulose aggregate which has a secondary aggregation structure formed by the aggregation of primary cellulose particles, has a pore volume within a particle of 0.265 cm3/g to 2.625 cm3/g, contains I type crystals, has an average particle diameter of more than 30 ?m and 250 ?m or less, has a specific surface area of 1.3 to 20 cm2/g, has an angle of repose of 25° or more and less than 44°, and has the property that it collapses in water.Type: ApplicationFiled: January 27, 2005Publication date: August 16, 2007Inventors: Naoaki Yamasaki, Kazuhiro Obae, Ichiro Ibuki
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Publication number: 20070028801Abstract: A cellulose powder which has an average degree of polymerization of 150 to 450, an average particle diameter of 30 to 250 ?m, an apparent specific volume exceeding 7 cm3/g, and a retention of polyethylene glycol having a molecular weight of 400 to 190% or higher.Type: ApplicationFiled: May 28, 2004Publication date: February 8, 2007Applicant: Asahi Kasei Chemicals CorporationInventors: Naoaki Yamasaki, Kazuhiro Obae, Ichiro Ibuki
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Patent number: 5852111Abstract: Disclosed is a polyisocyanate composition which comprises: (a) a hydrophilic polyisocyanate comprising at least one base polyisocyanate selected from an aliphatic and/or an alicyclic diisocyanate, and a polyisocyanate derived therefrom, and a nonionic hydrophilic group, bonded to the polyisocyanate, containing therein 5 to 50 repeating ethylene oxide units in terms of the average number of the units, wherein the hydrophilic group is present in an amount of from 2 to 50% by weight, based on the total weight of the base polyisocyanate and the hydrophilic group; and (b) 0.5 to 20% by weight, based on the total weight of components (a) and (b), of a substantially water-free ionic surfactant. The polyisocyanate composition exhibits not only excellent dispersibility in water, but also exhibits high stability in the form of an aqueous dispersion thereof, since a reaction between the terminal isocyanate groups and water is suppressed.Type: GrantFiled: October 10, 1997Date of Patent: December 22, 1998Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Shinichiro Watanabe, Ichiro Ibuki
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Patent number: 5795950Abstract: The present invention provides straight-chain crystalline polyuretdione which has a structure represented by formula (1): ##STR1## wherein Y represents ##STR2## X represents ##STR3## or --NCO; R.sub.1 is R.sub.2 or ##STR4## R.sub.2 is a residual group other than diol; R.sub.3 is a residual group obtained by removing an active hydrogen from a compound having one active hydrogen; R.sub.4 is a residual group obtained by removing two NCO groups from diisocyanate; and n is 1 or more,in formula (1), Y being replaced with a triazine ring represented by ##STR5## in the range of 0 to 15%, the polyuretdione having a latent NCO group content of 12 to 21% by weight, a weight-average molecular weight of 2000 to 20000 and a melting point of 60.degree. to 140.degree. C., and being not blocked at 40.degree. C. or less. The straight-chain crystalline polyuretdione of the present invention can be used as a hardener for powder coatings and does not cause a bad smell due to a blocking agent during baking of coating.Type: GrantFiled: November 18, 1996Date of Patent: August 18, 1998Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Kenshi Sugimoto, Shinji Suzuki, Ichiro Ibuki
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Patent number: 4771080Abstract: There is disclosed expandable vinylidene chloride-based resin particles comprising 100 parts by weight of a non-crystalline vinylidene chloride-based resin composition and 1 to 40 parts by weight of a volatile organic blowing agent or a composition thereof, said resin composition consisting ofa tetrahydrofuran-soluble component [A] which is a random copolymer having a weight-average molecular weight of 10,000 to 600,000 and constituted of different units represented severally by the following general formulae ##STR1## wherein; R.sub.1 denotes alkyl of 1 to 4 carbon atoms, cyclohexyl, phenyl, or each of R.sub.6 and R.sub.7 being --CH.sub.3, --C.sub.2 H.sub.5, --Cl, --Br, --OCH.sub.3, or --H; each of R.sub.2 and R.sub.4 denotes --H or --CH.sub.3 ; R.sub.3 denotes halogen, --CN, ##STR2## n being an integer 1 to 8 and R.sub.Type: GrantFiled: December 24, 1987Date of Patent: September 13, 1988Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Ichiro Ibuki, Akira Fujie, Nobuo Miura