Patents by Inventor Akinori Matsushika

Akinori Matsushika 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).

  • D-type amino acid dehydrogenase
    Patent number: 11098288
    Abstract: An enzyme having the following characteristics (a) and (b): (a) the enzyme has an activity of reversible dehydrogenation of D-amino acids; (b) the enzyme is a hexamer of polypeptides having an amino acid sequence having 80% or greater identity to the amino acid sequence of SEQ ID NO: 2.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: August 24, 2021
    Assignees: KUREHA CORPORATION, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Hironaga Akita, Yuusuke Nakamichi, Masahiro Watanabe, Akinori Matsushika, Tomotake Morita
  • D-type amino acid dehydrogenase
    Patent number: 10927354
    Abstract: An enzyme has an activity of reversible dehydrogenation of D-amino acid and is a hexamer of polypeptides having an amino acid sequence that has 80% or more identity with the amino acid sequence of SEQ ID NO: 2. The amino acid sequence of the polypeptide can include one or more amino acid substitutions for one or more amino acid residues of SEQ ID NO: 2.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: February 23, 2021
    Assignees: KUREHA CORPORATION, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Hironaga Akita, Yuusuke Nakamichi, Masahiro Watanabe, Akinori Matsushika, Tomotake Morita
  • D-TYPE AMINO ACID DEHYDROGENASE
    Publication number: 20200248153
    Abstract: An enzyme having the following characteristics (a) and (b): (a) the enzyme has an activity of reversible dehydrogenation of D-amino acids; (b) the enzyme is a hexamer of polypeptides having an amino acid sequence having 80% or greater identity to the amino acid sequence of SEQ ID NO: 2.
    Type: Application
    Filed: August 9, 2018
    Publication date: August 6, 2020
    Applicants: Kureha Corporation, National Institute Of Advanced Industrial Science And Technology
    Inventors: Hironaga AKITA, Yuusuke NAKAMICHI, Masahiro WATANABE, Akinori MATSUSHIKA, Tomotake MORITA
  • D-TYPE AMINO ACID DEHYDROGENASE
    Publication number: 20200224178
    Abstract: An enzyme having the following characteristics of (a) and (b): (a) the enzyme has an activity of reversible dehydrogenation of D-amino acid; and (b) the enzyme is a hexamer of polypeptides having an amino acid sequence that has 80% or more identity with an amino acid sequence of SEQ ID NO: 2.
    Type: Application
    Filed: August 9, 2018
    Publication date: July 16, 2020
    Applicants: Kureha Corporation, National Institute Of Advanced Industrial Science And Technology
    Inventors: Hironaga AKITA, Yuusuke NAKAMICHI, Masahiro WATANABE, Akinori MATSUSHIKA, Tomotake MORITA
  • Hexose-pentose cofermenting yeast having excellent xylose fermentability and method for highly efficiently producing ethanol using the same
    Patent number: 8445243
    Abstract: Genetic recombinant yeast expressing xylose reductase (XR), (wild-type or mutant) xylitol dehydrogenase (XDH), and xylulokinase (XK) and a method for highly efficiently producing ethanol from xylose using the yeast are provided. Pichia stipitis-derived XR and (wild-type or modified-type) XDH genes and Saccharomyces cerevisiae-derived XK gene were introduced via chromosomal integration. Thus, a genetic recombinant yeast having a high xylose fermentation rate, being capable of producing ethanol from xylose in high yields, and having high xylose fermentability in the presence of glucose, as well as a method using the recombinant yeast for highly efficiently producing ethanol from xylose or a saccharified solution from lignocellulose-based biomass are provided. Furthermore, a method for improving the xylose fermentability of the genetic recombinant yeast of the present invention via acclimatization treatment is also provided herein.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: May 21, 2013
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Akinori Matsushika, Shigeki Sawayama, Hiroyuki Inoue, Keisuke Makino, Tsutomu Kodaki, Seiya Watanabe
  • HEXOSE-PENTOSE COFERMENTING YEAST HAVING EXCELLENT XYLOSE FERMENTABILITY AND METHOD FOR HIGHLY EFFICIENTLY PRODUCING ETHANOL USING THE SAME
    Publication number: 20110027847
    Abstract: Genetic recombinant yeast expressing xylose reductase (XR), (wild-type or mutant) xylitol dehydrogenase (XDH), and xylulokinase (XK) and a method for highly efficiently producing ethanol from xylose using the yeast are provided. Pichia stipitis-derived XR and (wild-type or modified-type) XDH genes and Saccharomyces cerevisiae-derived XK gene were introduced via chromosomal integration. Thus, a genetic recombinant yeast having a high xylose fermentation rate, being capable of producing ethanol from xylose in high yields, and having high xylose fermentability in the presence of glucose, as well as a method using the recombinant yeast for highly efficiently producing ethanol from xylose or a saccharified solution from lignocellulose-based biomass are provided. Furthermore, a method for improving the xylose fermentability of the genetic recombinant yeast of the present invention via acclimatization treatment is also provided herein.
    Type: Application
    Filed: January 22, 2009
    Publication date: February 3, 2011
    Applicant: National Institute of Adv Industrial Sci and Tech
    Inventors: Akinori Matsushika, Shigeki Sawayama, Hiroyuki Inoue, Keisuke Makino, Tsutomu Kodaki, Seiya Watanabe