Patents by Inventor Akemi Watabe

Akemi Watabe 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).

  • Beta -fructofuranosidase and its gene, method of isolating beta -fructofuranosidase gene, system for producing beta -fructofuranosidase, and beta -fructofuranosidase variant
    Publication number: 20020192771
    Abstract: A novel &bgr;-fructofuranosidase gene and a &bgr;-fructofuranosidase encoded by the gene, a process for isolating a &bgr;-fructofuranosidase gene using the novel &bgr;-fructofuranosidase gene, and a novel &bgr;-fructofuranosidase obtained by this isolation process are disclosed. A novel mold fungus having no &bgr;-fructofuranosidase activity suitable for the production of &bgr;-fructofuranosidase, and a system for producing a recombinant &bgr;-fructofuranosidase using the novel mold fungus as a host is disclosed. Further, a &bgr;-fructofuranosidase variant which selectively and efficiently produces a specific fructooligosaccharide such as 1-kestose from sucrose is disclosed.
    Type: Application
    Filed: November 23, 2001
    Publication date: December 19, 2002
    Inventors: Koji Yanai, Akitaka Nakane, Hirofumi Nakamura, Yuko Baba, Akemi Watabe, Masao Hirayama
  • &bgr;-fructofuranosidase and its gene, method of isolating &bgr;-fructofuranosidase gene, system for producing &bgr;-fructofuranosidase, and &bgr;-fructofuranosidase variant
    Patent number: 6337201
    Abstract: A novel &bgr;-fructofuranosidase gene and a &bgr;-fructofuranosidase encoded by the gene, a process for isolating a &bgr;-fructofuranosidase gene using the novel &bgr;-fructofuranosidase gene, and a novel &bgr;-fructofuranosidase obtained by this isolation process are disclosed. A novel mold fungus having no &bgr;-fructofuranosidase activity suitable for the production of &bgr;-fructofuranosidase, and a system for producing a recombinant &bgr;-fructofuranosidase using the novel mold fungus as a host is disclosed. Further, a &bgr;-fructofuranosidase variant which selectively and efficiently produces a specific fructooligosaccharide such as 1-kestose from sucrose is disclosed.
    Type: Grant
    Filed: September 10, 1998
    Date of Patent: January 8, 2002
    Assignee: Meiji Seika Kaisha, Ltd.
    Inventors: Koji Yanai, Akitaka Nakane, Hirofumi Nakamura, Yuko Baba, Akemi Watabe, Masao Hirayama