Patents by Inventor Fumito Ohnishi

Fumito Ohnishi 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 or a nucleic acid
    Patent number: 8178322
    Abstract: A method is described for producing an L-amino acid or a nucleic acid by culturing a microorganism having an ability to produce the L-amino acid or nucleic acid in a liquid medium in a fermentation tank containing a stirring impeller, and optionally adding seed crystals to the medium as required to produce and accumulate crystals of the L-amino acid or nucleic acid in the medium, and collecting crystals of the L-amino acid or nucleic acid from the culture. The power density of the stirring impeller is controlled to be 2.4 kW/m3 or lower after either precipitation of the crystals or addition of the seed crystals.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: May 15, 2012
    Assignee: Ajinomoto Co., Inc.
    Inventors: Masayuki Araki, Yusuke Takahashi, Akihiro Watanabe, Fumito Ohnishi, Takahiro Asano, Kazuya Kondo, Wataru Hibino, Shintaro Iwatani, Satoshi Okutani
  • METHOD FOR PRODUCING AN L-AMINO ACID OR A NUCLEIC ACID
    Publication number: 20100062493
    Abstract: A method is described for producing an L-amino acid or a nucleic acid by culturing a microorganism having an ability to produce the L-amino acid or nucleic acid in a liquid medium in a fermentation tank containing a stirring impeller, and optionally adding seed crystals to the medium as required to produce and accumulate crystals of the L-amino acid or nucleic acid in the medium, and collecting crystals of the L-amino acid or nucleic acid from the culture. The power density of the stirring impeller is controlled to be 2.4 kW/m3 or lower after either precipitation of the crystals or addition of the seed crystals.
    Type: Application
    Filed: August 14, 2009
    Publication date: March 11, 2010
    Inventors: Masayuki Araki, Yusuke Takahashi, Akihiro Watanabe, Fumito Ohnishi, Takahiro Asano, Kazuya Kondo, Wataru Hibino, Shintaro Iwatani, Satoshi Okutani