Patents by Inventor Kazutaka Maejima

Kazutaka Maejima 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).

  • DNA coding for alkaline protease
    Patent number: 5543322
    Abstract: There are disclosed cloning of an alkaliprotease secretion gene of a mold and a DNA fragment containing a part or all of the alkaliprotease gene. A plasmid into which the DNA fragment is integrated, a transformant obtained by using the plasmid and the production of a useful protein by using the transformant are also disclosed.
    Type: Grant
    Filed: August 12, 1994
    Date of Patent: August 6, 1996
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Kazuaki Kitano, Shigeru Morita, Masato Kuriyama, Kazutaka Maejima
  • Superoxide dismutase, its immobilized form, and their production and use
    Patent number: 4563349
    Abstract: A novel superoxide dismutase is produced by cultivating a microorganism belonging to the genus Serratia. The superoxide dismutase is useful as an antiinflammatory agent.An immobilized superoxide dismutase has properties of decreased antigenicity and increased antiinflammatory activity.
    Type: Grant
    Filed: October 1, 1984
    Date of Patent: January 7, 1986
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Kouichi Miyata, Kazutaka Maejima, Katsumi Tomoda