Patents by Inventor Katsuya Ueno
Katsuya Ueno 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: 8198394Abstract: A membrane-electrode assembly for polymer electrolyte fuel cells which is excellent in water repellency and gas diffusivity and which exhibits a high output power density, can be obtained by using, as an electrolyte material for polymer electrolyte fuel cells, a fluoropolymer obtained by contacting a fluoropolymer which is excellent in gas diffusivity and which has alicyclic structures in its main chain and further has sulfonic acid groups, with fluorine gas for fluorination to increase water repellency and stabilize the molecule ends.Type: GrantFiled: April 28, 2009Date of Patent: June 12, 2012Assignee: Asahi Glass Company, LimitedInventors: Jun-ichi Tayanagi, Atsushi Watakabe, Susumu Saito, Katsuya Ueno
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Publication number: 20120022286Abstract: To provide a process for safely producing a perfluoroacyl peroxide with good productivity. By supplying a perfluoroacyl halide-containing organic solvent solution, an aqueous solution of hydrogen peroxide or a metal peroxide, and an aqueous basic alkali metal compound solution to a tubular reactor to allow them to react with one another, in a flow rate ratio of, as represented by molar ratio of the compounds in the solutions, from 1.00 to 1.35 of the basic alkali metal compound and from 0.60 to 40 of hydrogen peroxide or the metal peroxide per 1 of the perfluoroacyl halide, the yield of a perfluoroacyl peroxide based on the material perfluoroacyl halide can be remarkably improved as compared with conventional technique.Type: ApplicationFiled: September 29, 2011Publication date: January 26, 2012Applicant: ASAHI GLASS COMPANY LIMITEDInventors: Katsuya Ueno, Toshiyuki Tanaka, Mayako Takahashi, Kazuhiko Yamada, Fusaaki Takeo, Shoji Furuta
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Publication number: 20100215592Abstract: The present invention relates to an oral care composition, which contains a compound represented by the formula (A): (wherein, R represents a substituted or unsubstituted, linear or branched alkyl group having from 6 to 18 carbon atoms, G represents a galactose residue, m stands for an integer of from 0 to 200, and n stands for an integer of from 1 to 30); and a coaggregation inhibitor of bacteria of the genus Fusobacterium and cariogenic bacteria, which contains the compound as an effective ingredient. The composition for oral cavity according to the present invention inhibits coaggregation of bacteria of the genus Fusobacterium with cariogenic bacteria so that it has an excellent caries preventive effect.Type: ApplicationFiled: May 3, 2010Publication date: August 26, 2010Inventors: Morihide ITANO, Shigeto KAYANE, Katsuya UENO, Hiromoto MIZUSHIMA
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Patent number: 7767309Abstract: To provide an imprinting mold, of which a coating layer formed on its surface is hardly susceptible to peeling, and a process for its production. An imprinting mold comprising a mold body and a coating layer made of a release agent, formed on the surface of the mold body, wherein the release agent contains a compound of the following formula (1), and a process for its production: wherein R is Rf—X—, both R are the same group, Rf is a perfluoroalkyl group, X is at least one member selected from —(OC3F6)—, —(OC2F4)— and —(OCF2)—, provided that the sum of such units is at least 1, Y is an organic group, is an average of n is from 2 to 10, Z is —Si(R1)m(R2)3-m, R1 is a hydroxyl group or a hydrolysable group, R2 is a hydrogen atom or a hydrocarbon group, and m is from 1 to 3.Type: GrantFiled: July 29, 2009Date of Patent: August 3, 2010Assignee: Asahi Glass Company, LimitedInventors: Katsuya Ueno, Yasuhide Kawaguchi
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Publication number: 20090285927Abstract: To provide an imprinting mold, of which a coating layer formed on its surface is hardly susceptible to peeling, and a process for its production. An imprinting mold comprising a mold body and a coating layer made of a release agent, formed on the surface of the mold body, wherein the release agent contains a compound of the following formula (1), and a process for its production: wherein R is Rf-X-, both R are the same group, Rf is a perfluoroalkyl group, X is at least one member selected from —(OC3F6)—, —(OC2F4)— and —(OCF2)—, provided that the sum of such units is at least 1, Y is an organic group, is an average of n is from 2 to 10, Z is —Si(R1)m(R2)3-m, R1 is a hydroxyl group or a hydrolysable group, R2 is a hydrogen atom or a hydrocarbon group, and m is from 1 to 3.Type: ApplicationFiled: July 29, 2009Publication date: November 19, 2009Applicant: ASAHI GLASS COMPANY LIMITEDInventors: Katsuya Ueno, Yasuhide Kawaguchi
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Patent number: 7582713Abstract: A thickened ion exchange polymer dispersion is obtained by applying ultrasonic vibration or a shearing force to an ion exchange polymer dispersion having a fluorinated polymer having sulfonic acid groups as an ion exchange polymer uniformly dispersed in a dispersion medium so that the viscosity of the dispersion at 25° C. at a shear rate of 10 (1/s) increases 2-2000 times in a thickening step. When formed into a membrane, the dispersion can forms an ion exchange membrane having a uniform and small thickness, high strength, which is free from cracking and shows constant swelling in water and steam. Further, a layer formed by applying a coating solution containing this dispersion and a catalyst powder comprising catalyst metal particles and a carbon support loaded with the catalyst metal particles to a substrate can be used to prepare a membrane-electrode assembly as a catalyst layer for at least one of the cathode and the anode by providing the catalyst layer adjacently to an ion exchange membrane.Type: GrantFiled: January 7, 2005Date of Patent: September 1, 2009Assignee: Asahi Glass Company, LimitedInventors: Ichiro Terada, Satoru Hommura, Nobuyuki Kasahara, Katsuya Ueno
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Publication number: 20090215938Abstract: A membrane-electrode assembly for polymer electrolyte fuel cells which is excellent in water repellency and gas diffusivity and which exhibits a high output power density, can be obtained by using, as an electrolyte material for polymer electrolyte fuel cells, a fluoropolymer obtained by contacting a fluoropolymer which is excellent in gas diffusivity and which has alicyclic structures in its main chain and further has sulfonic acid groups, with fluorine gas for fluorination to increase water repellency and stabilize the molecule ends.Type: ApplicationFiled: April 28, 2009Publication date: August 27, 2009Applicant: Ashai Glass Company, LimitedInventors: Jun-ichi TAYANAGI, Atsushi Watakabe, Susumu Saito, Katsuya Ueno
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Patent number: 7557178Abstract: A membrane-electrode assembly for polymer electrolyte fuel cells which is excellent in water repellency and gas diffusivity and which exhibits a high output power density, can be obtained by using, as an electrolyte material for polymer electrolyte fuel cells, a fluoropolymer obtained by contacting a fluoropolymer which is excellent in gas diffusivity and which has alicyclic structures in its main chain and further has sulfonic acid groups, with fluorine gas for fluorination to increase water repellency and stabilize the molecule ends.Type: GrantFiled: July 19, 2005Date of Patent: July 7, 2009Assignee: Asahi Glass Company, LimitedInventors: Jun-ichi Tayanagi, Atsushi Watakabe, Susumu Saito, Katsuya Ueno
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Publication number: 20090156511Abstract: The present invention relates to a preservative efficacy-enhancing agent capable of allowing an antiseptic agent to exhibit a high preservative efficacy even when the antiseptic agent is used at a low concentration; a preservative efficacy-enhancing composition containing the same; and a method for enhancing a preservative efficacy of antiseptic agents. The present invention relates to: (1) a preservative efficacy-enhancing agent for antiseptic agents which includes an amphiphilic galactose derivative (A) as an effective ingredient; (2) a preservative efficacy-enhancing composition including 0.01 to 30% by mass of an amphiphilic galactose derivative (A) and 0.01 to 1.0% by mass of an antiseptic agent (B); and (3) a method for enhancing a preservative efficacy of an antiseptic composition which includes the step of allowing 0.01 to 30% by mass of an amphiphilic galactose derivative (A) to coexist with an antiseptic agent (B) in the composition.Type: ApplicationFiled: February 27, 2006Publication date: June 18, 2009Applicant: Kao CorporationInventors: Katsuya Ueno, Hiromoto Mizushima, Hiromi Kubota, Katsumi Endo
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Publication number: 20080255058Abstract: The present invention relates to an oral care composition, which contains a compound represented by the formula (A): (wherein, R represents a substituted or unsubstituted, linear or branched alkyl group having from 6 to 18 carbon atoms, G represents a galactose residue, m stands for an integer of from 0 to 200, and n stands for an integer of from 1 to 30); and a coaggregation inhibitor of bacteria of the genus Fusobacterium and cariogenic bacteria, which contains the compound as an effective ingredient. The composition for oral cavity according to the present invention inhibits coaggregation of bacteria of the genus Fusobacterium with cariogenic bacteria so that it has an excellent caries preventive effect.Type: ApplicationFiled: September 28, 2005Publication date: October 16, 2008Applicant: KAO CORPORATIONInventors: Morihide Itano, Shigeto Kayane, Katsuya Ueno, Hiromoto Mizushima
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Patent number: 7351809Abstract: A process is provided for the selective and convenient production of a glycerol glycoside, which has been glycosidated at the 1-hydroxyl group of glycerol and is useful as a glyceroglycolipid precursor, humectant or the like. A glycerol carbonate glycoside represented by the following formula (1): wherein G represents a monosaccharide residue, and n stands for an integer of from 1 to 3; a process for producing the glycerol carbonate glycoside of formula (1) by reacting a saccharide with glycerol-1,2-carbonate in the presence of an acid; and a process for producing a glycerol glycoside which is represented by the following formula (2): wherein G and n have the same meanings as defined above, by deprotecting the glycerol carbonate glycoside represented by formula (1).Type: GrantFiled: October 1, 2004Date of Patent: April 1, 2008Assignee: Kao CorporationInventors: Katsuya Ueno, Hiromoto Mizushima
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Publication number: 20070213517Abstract: A process is provided for the selective and convenient production of a glycerol glycoside, which has been glycosidated at the 1-hydroxyl group of glycerol and is useful as a glyceroglycolipid precursor, humectant or the like. A glycerol carbonate glycoside represented by the following formula (1): wherein G represents a monosaccharide residue, and n stands for an integer of from 1 to 3; a process for producing the glycerol carbonate glycoside of formula (1) by reacting a saccharide with glycerol-1,2-carbonate in the presence of an acid; and a process for producing a glycerol glycoside which is represented by the following formula (2): wherein G and n have the same meanings as defined above, by deprotecting the glycerol carbonate glycoside represented by formula (1).Type: ApplicationFiled: October 1, 2004Publication date: September 13, 2007Applicant: KAO CORPORATIONInventors: Katsuya Ueno, Hirozumi Mizushima
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Publication number: 20060287497Abstract: A membrane-electrode assembly for polymer electrolyte fuel cells which is excellent in water repellency and gas diffusivity and which exhibits a high output power density, can be obtained by using, as an electrolyte material for polymer electrolyte fuel cells, a fluoropolymer obtained by contacting a fluoropolymer which is excellent in gas diffusivity and which has alicyclic structures in its main chain and further has sulfonic acid groups, with fluorine gas for fluorination to increase water repellency and stabilize the molecule ends.Type: ApplicationFiled: July 19, 2005Publication date: December 21, 2006Applicant: Asahi Glass Company, LimitedInventors: Jun-ichi Tayanagi, Atsushi Watakabe, Susumu Saito, Katsuya Ueno
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Publication number: 20050143540Abstract: A thickened ion exchange polymer dispersion is obtained by applying ultrasonic vibration or a shearing force to an ion exchange polymer dispersion having a fluorinated polymer having sulfonic acid groups as an ion exchange polymer uniformly dispersed in a dispersion medium so that the viscosity of the dispersion at 25° C. at a shear rate of 10 (1/s) increases 2-2000 times in a thickening step. When formed into a membrane, the dispersion can forms an ion exchange membrane having a uniform and small thickness, high strength, which is free from cracking and shows constant swelling in water and steam. Further, a layer formed by applying a coating solution containing this dispersion and a catalyst powder comprising catalyst metal particles and a carbon support loaded with the catalyst metal particles to a substrate can be used to prepare a membrane-electrode assembly as a catalyst layer for at least one of the cathode and the anode by providing the catalyst layer adjacently to an ion exchange membrane.Type: ApplicationFiled: January 7, 2005Publication date: June 30, 2005Applicant: ASAHI GLASS COMPANY LIMITEDInventors: Ichiro Terada, Satoru Hommura, Nobuyuki Kasahara, Katsuya Ueno