Patents by Inventor Masaharu Tokuyama

Masaharu Tokuyama 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 Fragment encoding acylamino acid racemase
    Patent number: 5525501
    Abstract: The present invention relates to a DNA fragment containing a gene encoding acylamino acid racemase. The acylamino acid racemase can be produced industrially at high efficiency using the DNA fragment.
    Type: Grant
    Filed: November 23, 1994
    Date of Patent: June 11, 1996
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Masaharu Tokuyama, Kazunori Hatano, Kazuo Nakahama, Takeshi Takahashi