Patents by Inventor Hironori Nanba

Hironori Nanba 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).

  • Amino acid dehydrogenase, and process for producing L-amino acid, 2-oxo acid or D-amino acid
    Patent number: 9267116
    Abstract: The present invention relates to a novel amino acid dehydrogenase, DNA encoding the enzyme, and a transformant having the DNA introduced therein. The present invention also relates to a process for producing an L-amino acid, 2-oxo acid or D-amino acid, which includes allowing the amino acid dehydrogenase or a microorganism or transformant capable of producing the enzyme to act on a substrate compound. The amino acid dehydrogenase has good reactivity even with an amino acid or a 2-oxo acid each having a bulky side chain such as an aromatic-ring-containing group, which acids are poorly reactive with conventional amino acid dehydrogenases. The amino acid dehydrogenase enables the inexpensive and highly efficient production of a useful optically active amino acid.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: February 23, 2016
    Assignee: KANEKA CORPORATION
    Inventors: Hiroyuki Kanamaru, Ryuuji Miki, Makoto Ueda, Hironori Nanba, Yoshihiko Yasohara
  • NOVEL AMINO ACID DEHYDROGENASE, AND PROCESS FOR PRODUCING L-AMINO ACID, 2-OXO ACID OR D-AMINO ACID
    Publication number: 20110281309
    Abstract: The present invention relates to a novel amino acid dehydrogenase, DNA encoding the enzyme, and a transformant having the DNA introduced therein. The present invention also relates to a process for producing an L-amino acid, 2-oxo acid or D-amino acid, which includes allowing the amino acid dehydrogenase or a microorganism or transformant capable of producing the enzyme to act on a substrate compound. The amino acid dehydrogenase has good reactivity even with an amino acid or a 2-oxo acid each having a bulky side chain such as an aromatic-ring-containing group, which acids are poorly reactive with conventional amino acid dehydrogenases. The amino acid dehydrogenase enables the inexpensive and highly efficient production of a useful optically active amino acid.
    Type: Application
    Filed: December 8, 2009
    Publication date: November 17, 2011
    Applicant: KANEKA CORPORATION
    Inventors: Hiroyuki Kanamaru, Ryuuji Miki, Makoto Ueda, Hironori Nanba, Yoshihiko Yasohara