Patents by Inventor Naoaki Yamasaki

Naoaki Yamasaki 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).

  • Publication number: 20210198455
    Abstract: The present disclosure relates to a resin composition that exhibits satisfactory flow properties and mechanical properties, to a cellulose formulation that is used to produce the resin composition, and to resin pellets and a molded resin formed by the resin composition.
    Type: Application
    Filed: September 8, 2017
    Publication date: July 1, 2021
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventors: Takaaki Miyoshi, Naoaki Yamasaki, Koichi Ueno, Takashi Sanda, Kazuya Nagata, Kazuaki Sanada
  • Publication number: 20210130586
    Abstract: The present invention provides a cellulose composite composed of a cellulose and a polysaccharide, wherein a Bragg spacing by small angle X-ray scattering (SAXS) of a sediment obtained by subjecting a 0.1% by mass aqueous dispersion of the cellulose composite to a centrifugation treatment is 8.6 nm or more, and a method for producing the same.
    Type: Application
    Filed: March 29, 2019
    Publication date: May 6, 2021
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventors: Hirotaka ASAI, Naoaki YAMASAKI, Masayuki KAKIZAWA, Naoki SAKAMOTO
  • Patent number: 10624359
    Abstract: A method for producing a cellulose composite containing cellulose and a polysaccharide, wherein a median size of colloidal cellulose composites contained in the cellulose composite as measured by a dynamic light scattering method is 0.85 ?m or more, the method including treating a mixture containing cellulose, a polysaccharide and an aqueous medium together in a wet process, wherein a solid content is controlled to be 35 mass % or more, and temperature is set at 80° C. or less.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: April 21, 2020
    Assignee: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Kouichirou Enatsu, Haruko Obata, Naoaki Yamasaki
  • Patent number: 10492510
    Abstract: The present invention relates to a cellulose composite that makes separation and aggregation less likely to occur, and, more specifically, relates to a cellulose composite comprising cellulose and one or more types of water-soluble carboxymethyl cellulose wherein tan ? of an aqueous dispersion obtained by dispersing 1 mass % of the cellulose composite in ion-exchanged water is 0.6 or lower.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: December 3, 2019
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Haruko Obata, Naoaki Yamasaki
  • Publication number: 20180326613
    Abstract: The present invention provides a method for producing a ceramic green body molded article, comprising: a raw material blending step of kneading 100 parts by mass of a ceramic raw material with 0.1 to 20 parts by mass of a cellulose complex comprising cellulose and a water-soluble polymer to obtain a kneaded product; and a step of molding the kneaded product.
    Type: Application
    Filed: November 9, 2016
    Publication date: November 15, 2018
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Kouichirou ENATSU, Naoaki YAMASAKI
  • Patent number: 10080371
    Abstract: A cellulose composite which contains a cellulose and a polysaccharide and which is characterized in that the median diameter of colloidal cellulose composites contained in the cellulose composite is 0.85 ?m or more as measured by a dynamic light scattering method.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: September 25, 2018
    Assignee: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Kouichirou Enatsu, Haruko Obata, Naoaki Yamasaki
  • Publication number: 20180134878
    Abstract: [Problem] The present invention addresses the problem of providing a cellulose composite whereby the cellulose composite itself disperses stably even when ions are blended in a high concentration in a beverage, and also has excellent suspension stability. [Solution] A cellulose composite comprising cellulose, an anionic polysaccharide not having a chemically crosslinked structure, and water-absorbent particles comprising a compound having a chemically crosslinked structure wherein the cellulose composite has a viscosity of 10 mPa·s or higher when 1 mass % of the cellulose composite is dispersed in an aqueous solution in which 0.45 g of sodium bicarbonate is dissolved in 100 mL of pure water.
    Type: Application
    Filed: April 13, 2015
    Publication date: May 17, 2018
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Ryo SUZUKI, Koichiro ENATSU, Naoaki YAMASAKI
  • Publication number: 20180110235
    Abstract: The present invention relates to a cellulose composite that makes separation and aggregation less likely to occur, and, more specifically, relates to a cellulose composite comprising cellulose and one or more types of water-soluble carboxymethyl cellulose wherein tan ? of an aqueous dispersion obtained by dispersing 1 mass % of the cellulose composite in ion-exchanged water is 0.6 or lower.
    Type: Application
    Filed: April 13, 2016
    Publication date: April 26, 2018
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Haruko OBATA, Naoaki YAMASAKI
  • Publication number: 20170055540
    Abstract: A method for producing a cellulose composite containing cellulose and a polysaccharide, wherein a median size of colloidal cellulose composites contained in the cellulose composite as measured by a dynamic light scattering method is 0.85 ?m or more, the method including treating a mixture containing cellulose, a polysaccharide and an aqueous medium together in a wet process, wherein a solid content is controlled to be 35 mass % or more, and temperature is set at 80° C. or less.
    Type: Application
    Filed: November 15, 2016
    Publication date: March 2, 2017
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Kouichirou ENATSU, Haruko OBATA, Naoaki YAMASAKI
  • Patent number: 9351509
    Abstract: Cellulose composites of cellulose and a hydrophilic gum, the cellulose composite giving a 1-mass % aqueous dispersion thereof, which has a storage modulus (G?) of 0.06 Pa or more when the pH thereof is 4.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: May 31, 2016
    Assignee: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Haruko Obata, Naoaki Yamasaki
  • Publication number: 20140377442
    Abstract: Cellulose composites of cellulose and a hydrophilic gum, the cellulose composite giving a 1-mass % aqueous dispersion thereof, which has a storage modulus (G?) of 0.06 Pa or more when the pH thereof is 4.
    Type: Application
    Filed: September 12, 2014
    Publication date: December 25, 2014
    Inventors: Haruko OBATA, Naoaki YAMASAKI
  • Patent number: 8865242
    Abstract: Disclosed is a cellulose composite which comprises cellulose and a hydrophilic gum, the cellulose composite giving a 1-mass % aqueous dispersion thereof which has a storage modulus (G?) of 0.06 Pa or more when the pH thereof is 4.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: October 21, 2014
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Haruko Obata, Naoaki Yamasaki
  • Publication number: 20140171521
    Abstract: A cellulose composite which contains a cellulose and a polysaccharide and which is characterized in that the median diameter of colloidal cellulose composites contained in the cellulose composite is 0.85 ?m or more as measured by a dynamic light scattering method.
    Type: Application
    Filed: August 10, 2012
    Publication date: June 19, 2014
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Kouichirou Enatsu, Haruko Obata, Naoaki Yamasaki
  • Patent number: 8597686
    Abstract: 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: Grant
    Filed: January 27, 2005
    Date of Patent: December 3, 2013
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Naoaki Yamasaki, Kazuhiro Obae, Ichiro Ibuki
  • Publication number: 20130022730
    Abstract: Disclosed is a cellulose composite which comprises cellulose and a hydrophilic gum, the cellulose composite giving a 1-mass % aqueous dispersion thereof which has a storage modulus (G?) of 0.06 Pa or more when the pH thereof is 4.
    Type: Application
    Filed: March 30, 2011
    Publication date: January 24, 2013
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Haruko Obata, Naoaki Yamasaki
  • Patent number: 8349365
    Abstract: 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: Grant
    Filed: September 27, 2006
    Date of Patent: January 8, 2013
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Naoaki Yamasaki, Ichiro Ibuki, Yoshihito Yaginuma, Yoshinaga Tamura
  • Patent number: 7947656
    Abstract: 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: Grant
    Filed: July 26, 2005
    Date of Patent: May 24, 2011
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Naoaki Yamasaki, Ichiro Ibuki, Koji Isaka
  • Publication number: 20090232892
    Abstract: 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: Application
    Filed: September 27, 2006
    Publication date: September 17, 2009
    Inventors: Naoaki Yamasaki, Ichiro Ibuki, Yoshihito Yaginuma, Yoshinaga Tamura
  • Patent number: 7514552
    Abstract: 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: Grant
    Filed: May 28, 2004
    Date of Patent: April 7, 2009
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Naoaki Yamasaki, Kazuhiro Obae, Ichiro Ibuki
  • Publication number: 20070207108
    Abstract: 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: Application
    Filed: July 26, 2005
    Publication date: September 6, 2007
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Naoaki Yamasaki, Ichiro Ibuki, Koji Isaka