Patents by Inventor Yasue Nakagawa
Yasue Nakagawa 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: 8735646Abstract: An absorbent article that has a thin, conformable absorbent core where the core has at least two layers, both of which are substantially free of cellulosic fibers is described. The first layer is intended to provide storage for the majority of acquired fluids and has an AAP of at least about 20 g/g and the second layer, which provides temporary capacity for the bulk of the acquired fluid and permanent storage for at least a portion thereof, comprises a second absorbent polymer material which has a Wet Permeability of at least about 400×10?7 (cm3 seconds)/g a ratio of Wet Permeability to SFC of at least about 1.5:1 with respect to the first absorbent polymer material.Type: GrantFiled: March 28, 2005Date of Patent: May 27, 2014Assignee: The Procter & Gamble CompanyInventors: Holger Beruda, Yasue Nakagawa, Mattias Schmidt, Hiroyuki Ikeuchi, Kazushi Torii, Shigeru Sakamoto, Taku Iwamura, Sayaka Machida
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Patent number: 8231593Abstract: An absorbent article that has a thin, conformable absorbent core where the core has at least two layers, both of which are substantially free of cellulosic fibers. The absorbent article has a Circular Bend Flexibility of less than about 15 N and an acquisition rate on the third gush of less than about 170 seconds and/or on the fourth gush of less than about 190 seconds.Type: GrantFiled: February 26, 2010Date of Patent: July 31, 2012Assignee: The Procter & Gamble CompanyInventors: Yasue Nakagawa, Holger Beruda
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Patent number: 7851669Abstract: An absorbent article that has a thin, conformable absorbent core where the core has at least two layers, each including a different superabsorbent material, and each being typically substantially free of cellulosic fibers, is described. The absorbent article has a Circular Bend Flexibility of less than about 15 N. The core includes a storage layer and an acquisition/storage layer each a specific basis capacity of and absorption efficiency.Type: GrantFiled: July 26, 2006Date of Patent: December 14, 2010Assignee: The Procter & Gamble CompanyInventors: Yasue Nakagawa, Holger Beruda, Mattias Schmidt
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Patent number: 7847144Abstract: The present invention relates to absorbent articles comprising superabsorbent polymer particles especially suitable for use in the fluid acquisition zone of the absorbent core. The superabsorbent polymer particles are coated with cationic polymers having 1 to 25 mol/kg, referring to the total weight of the cationic polymers, of cationic groups, which can be protonated. The cationic polymers are not substantially covalently bound to the superabsorbent polymer particles.Type: GrantFiled: September 15, 2004Date of Patent: December 7, 2010Assignee: The Procter & Gamble CompanyInventors: Holger Beruda, Yasue Nakagawa, Andrea Lieselotte Link, Mattias Schmidt
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Patent number: 7837662Abstract: An absorbent article that has a thin, conformable absorbent core where the core has at least two layers, both of which includes (different) superabsorbent material and both being typically substantially free of cellulosic fibers is described. The absorbent article has a Circular Bend Flexibility of less than about 15 N and typically a an acquisition rate on the third gush of less than about 170 seconds and/or on the fourth gush of less than about 190 seconds.Type: GrantFiled: July 26, 2006Date of Patent: November 23, 2010Assignee: The Procter & Gamble CompanyInventors: Yasue Nakagawa, Holger Beruda, Mattias Schmidt
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Publication number: 20100160888Abstract: An absorbent article that has a thin, conformable absorbent core where the core has at least two layers, both of which are substantially free of cellulosic fibers. The absorbent article has a Circular Bend Flexibility of less than about 15 N and an acquisition rate on the third gush of less than about 170 seconds and/or on the fourth gush of less than about 190 seconds.Type: ApplicationFiled: February 26, 2010Publication date: June 24, 2010Inventors: Yasue Nakagawa, Holger Beruda
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Patent number: 7699825Abstract: An absorbent article that has a thin, conformable absorbent core where the core has at least two layers, both of which are substantially free of cellulosic fibers. The absorbent article has a Circular Bend Flexibility of less than about 15 N and an acquisition rate on the third gush of less than about 170 seconds and/or on the fourth gush of less than about 190 seconds.Type: GrantFiled: July 24, 2006Date of Patent: April 20, 2010Assignee: The Procter & Gamble CompanyInventors: Yasue Nakagawa, Holger Beruda
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Patent number: 7405341Abstract: The present invention relates to absorbent articles comprising superabsorbent polymer particles. The superabsorbent polymer particles are coated with cationic polymers having 1 to 25 mol/kg, referring to the total weight of the cationic polymers, of cationic groups, which can be protonated. The cationic polymers are not substantially covalently bound to the superabsorbent polymer particles. Furthermore, the superabsorbent polymer particles are not substantially covalently surface cross-linked.Type: GrantFiled: September 24, 2004Date of Patent: July 29, 2008Assignee: The Procter & Gamble CompanyInventors: Holger Beruda, Yasue Nakagawa, Andrea Lieselotte Link, Axel Meyer
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Publication number: 20080021426Abstract: An absorbent article that has a thin, conformable absorbent core where the core has at least two layers, both of which are substantially free of cellulosic fibers. The absorbent article has a Circular Bend Flexibility of less than about 15 N and an acquisition rate on the third gush of less than about 170 seconds and/or on the fourth gush of less than about 190 seconds.Type: ApplicationFiled: July 24, 2006Publication date: January 24, 2008Inventors: Yasue Nakagawa, Holger Beruda
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Publication number: 20070202772Abstract: An absorbent article comprising an absorbent core, which comprises at least one region comprising an aqueous-liquid-absorbing agent that contains water-absorbent resin particles, wherein the water-absorbent resin particles are obtained by a process including the step of polymerizing a water-soluble ethylenically unsaturated monomer having a carboxyl group, in the presence of an internal-crosslinking agent having at least four functional groups each capable of forming a covalent bond with a carboxyl group to thereby obtain a hydropolymer that is internally cross-linked and surface-crosslinked, the aqueous-liquid-absorbing agent being characterized by exhibiting a water absorption capacity (CRC) of 5 to 25 g/g and a saline flow conductivity (SFC) of not less than 1216 cm3·s·10-7/g.Type: ApplicationFiled: September 25, 2006Publication date: August 30, 2007Inventors: Hiroyuki Ikeuchi, Shigeru Sakamoto, Syaka Machida, Yasue Nakagawa, Holger Beruda
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Publication number: 20070027435Abstract: An absorbent article that has a thin, conformable absorbent core where the core has at least two layers, both of which includes (different) superabsorbent material and both being typically substantially free of cellulosic fibres is described. The absorbent article has a Circular Bend Flexibility of less than about 15 N and typically a an acquisition rate on the third gush of less than about 170 seconds and/or on the fourth gush of less than about 190 seconds.Type: ApplicationFiled: July 26, 2006Publication date: February 1, 2007Inventors: Yasue Nakagawa, Holger Beruda, Mattias Schmidt
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Publication number: 20070027436Abstract: An absorbent article that has a thin, conformable absorbent core where the core has at least two layers, each including a different superabsorbent material, and each being typically substantially free of cellulosic fibres, is described. The absorbent article has a Circular Bend Flexibility of less than about 15 N. The core includes a storage layer and an acquisition/storage layer each a specific basis capacity of and absorption efficiency.Type: ApplicationFiled: July 26, 2006Publication date: February 1, 2007Inventors: Yasue Nakagawa, Holger Beruda, Mattias Schmidt
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Publication number: 20050222547Abstract: An absorbent article that has a thin, conformable absorbent core where the core has at least two layers, both of which are substantially free of cellulosic fibers is described. The first layer is intended to provide storage for the majority of acquired fluids and has an AAP of at least about 20 g/g and the second layer, which provides temporary capacity for the bulk of the acquired fluid and permanent storage for at least a portion thereof, comprises a second absorbent polymer material which has a Wet Permeability of at least about 400×10?7 (cm3 seconds)/g a ratio of Wet Permeability to SFC of at least about 1.5:1 with respect to the first absorbent polymer material.Type: ApplicationFiled: March 28, 2005Publication date: October 6, 2005Inventors: Holger Beruda, Yasue Nakagawa, Mattias Schmidt, Hiroyuki Ikeuchi, Kazushi Torii, Shigeru Sakamoto, Taku Iwamura, Sayaka Machida
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Publication number: 20050101928Abstract: The present invention relates to absorbent articles comprising superabsorbent polymer particles. The superabsorbent polymer particles are coated with cationic polymers having 1 to 25 mol/kg, referring to the total weight of the cationic polymers, of cationic groups, which can be protonated. The cationic polymers are not substantially covalently bound to the superabsorbent polymer particles. Furthermore, the superabsorbent polymer particles are not substantially covalently surface cross-linked.Type: ApplicationFiled: September 24, 2004Publication date: May 12, 2005Applicant: The Procter & Gamble CompanyInventors: Holger Beruda, Yasue Nakagawa, Andrea Link, Axel Meyer
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Publication number: 20050070867Abstract: The present invention relates to absorbent articles comprising superabsorbent polymer particles especially suitable for use in the fluid acquisition zone of the absorbent core. The superabsorbent polymer particles are coated with cationic polymers having 1 to 25 mol/kg, referring to the total weight of the cationic polymers, of cationic groups, which can be protonated. The cationic polymers are not substantially covalently bound to the superabsorbent polymer particles.Type: ApplicationFiled: September 15, 2004Publication date: March 31, 2005Inventors: Holger Beruda, Yasue Nakagawa, Andrea Link, Mattias Schmidt
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Patent number: 6740214Abstract: There is disclosed a biosensor comprising a conducting surface, a layer of dielectric material overlying the conducting surface, a plurality of micro electrodes constituted by a plurality of pores extending through the thickness of said dielectric layer, a biopolymer positioned on the conducting surface in said pores, and a counter electrode arranged such that electrical connection can be made between it and at least part of said conducting surface by a fluid to be assessed. Such a device can be made using a method comprising the steps of providing a conducting surface; providing a layer of dielectric material adjacent to said conducting surface, said dielectric material comprising a plurality of pores extending through the thickness of the dielectric layer; providing a biopolymer on the conducting surface in said pores; and providing a counter electrode insulated from said conducting surface.Type: GrantFiled: March 12, 2001Date of Patent: May 25, 2004Assignee: ISIS Innovation LimitedInventors: Peter James Dobson, Peter Alexander Leigh, Yasue Nakagawa, Hugh Allen Oliver Hill