Patents by Inventor Yuri Masumitsu

Yuri Masumitsu 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).

  • Method for producing an L-amino acid
    Patent number: 8951760
    Abstract: A method for producing an L-amino acid includes culturing a bacterium which belongs to the family Enterobacteriaceae and has an L-amino acid-producing ability in a medium containing a carbon source selected from a fatty acid and an alcohol, and collecting the L-amino acid from the medium. A bacterium which has been subjected to a modification including at least one of enhancement of oxyS gene expression, enhancement of fixABC gene expression, and combination thereof, is used as the bacterium, or a substance that reduces intracellular hydrogen peroxide concentration of the bacterium is added to the medium.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: February 10, 2015
    Assignee: Ajinomoto Co., Inc.
    Inventors: Hidetaka Doi, Yasushi Hoshino, Yuri Masumitsu, Yoshihiro Usuda
  • Method for Producing an L-Amino Acid
    Publication number: 20130260425
    Abstract: A method for producing an L-amino acid includes culturing a bacterium which belongs to the family Enterobacteriaceae and has an L-amino acid-producing ability in a medium containing a carbon source selected from a fatty acid and an alcohol, and collecting the L-amino acid from the medium. A bacterium which has been subjected to a modification including at least one of enhancement of oxyS gene expression, enhancement of fixABC gene expression, and combination thereof, is used as the bacterium, or a substance that reduces intracellular hydrogen peroxide concentration of the bacterium is added to the medium.
    Type: Application
    Filed: June 7, 2013
    Publication date: October 3, 2013
    Inventors: Hidetaka Doi, Yasushi Hoshino, Yuri Masumitsu, Yoshihiro Usuda