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: 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
  • Publication number: 20070190017
    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: Application
    Filed: January 27, 2005
    Publication date: August 16, 2007
    Inventors: Naoaki Yamasaki, Kazuhiro Obae, Ichiro Ibuki
  • Publication number: 20070028801
    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: Application
    Filed: May 28, 2004
    Publication date: February 8, 2007
    Applicant: Asahi Kasei Chemicals Corporation
    Inventors: Naoaki Yamasaki, Kazuhiro Obae, Ichiro Ibuki