Patents by Inventor Mitsutaka Matsuura

Mitsutaka Matsuura 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).

  • Sorbitol dehydrogenase, gene encoding the same and use thereof
    Patent number: 6825018
    Abstract: A gene encoding D-sorbitol dehydrogenase (SLDH); a process for producing SLDH by culturing host cells transformed by an expression vector having the above gene; and a process for processing L-sorbose or 2-keto-L-gulonic acid (2KLGA) by using the above culture. 2KLGA is an important intermediate in the production of L-ascorbic acid. Thus, a process for producing L-ascorbic acid from the 2KLGA obtained by the above process is also provided.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: November 30, 2004
    Assignee: Fujisawa Pharmaceutical Co. Ltd.
    Inventors: Takashi Shibata, Chiyo Ichikawa, Mitsutaka Matsuura, Yuji Noguchi, Yoshimasa Saito, Michio Yamashita, Yoko Takata
  • Sorbitol dehydrogenase, gene encoding the same and use thereof
    Publication number: 20040235105
    Abstract: The present invention provide a gene encoding D-sorbitol dehydrogenase (SLDH), a method for producing SLDH by culture of a host cell transformed with a vector expressing this gene and a method for producing L-sorbose or 2-keto-L-gulonic acid (2KLGA) using the culture. 2KLGA is an important intermediate for the production of L-ascorbic acid. Therefore, the present invention also provides a method for producing L-ascorbic acid from the 2KLGA obtained by the above-mentioned method.
    Type: Application
    Filed: May 13, 2004
    Publication date: November 25, 2004
    Applicant: Fujisawa Pharmaceutical Co. Ltd.
    Inventors: Takashi Shibata, Chiyo Ichikawa, Mitsutaka Matsuura, Yuji Noguchi, Yoshimasa Saito, Michio Yamashita, Yoko Takata