Patents by Inventor Yuko Ikenaga

Yuko Ikenaga 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).

  • Coryneform bacterium transformant and process for producing dicarboxylic acids using the same
    Patent number: 7368268
    Abstract: The present invention provides an aerobic coryneform bacterium transformant in which a lactate dehydrogenase gene is disrupted, and a pyruvate carboxylase gene is recombined so as to be highly expressed by a genetic engineering method. The aerobic coryneform bacterium transformant of the present invention can produce dicarboxylic acids from saccharides at a high production rate.
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: May 6, 2008
    Assignee: Research Institute of Innovative Technology for the Earth
    Inventors: Shikiko Murakami, Kaori Nakata, Shohei Okino, Yuko Ikenaga, Masayuki Inui, Hideaki Yukawa
  • Coryneform bacterium transformant and process for producing dicarboxylic acids using the same
    Publication number: 20070087423
    Abstract: The present invention provides an aerobic coryneform bacterium transformant in which a lactate dehydrogenase gene is disrupted, and a pyruvate carboxylase gene is recombined so as to be highly expressed by a genetic engineering method. The aerobic coryneform bacterium transformant of the present invention can produce dicarboxylic acids from saccharides at a high production rate.
    Type: Application
    Filed: July 28, 2004
    Publication date: April 19, 2007
    Inventors: Shikiko Murakami, Kaori Nakata, Shohei Okino, Yuko Ikenaga, Masayuki Inui, Hideaki Yukawa