Patents by Inventor Makoto Yagasaki

Makoto Yagasaki 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).

  • Process for producing dipeptides or dipeptide derivatives
    Publication number: 20050287627
    Abstract: The present invention provides a process for producing a dipeptide or a dipeptide derivative using a phosphate donor, a substance selected from the group consisting of adenosine-5?-monophosphate, adenosine-5?-diphosphate and adenosine-5?-triphosphate, one or more kinds of amino acids or amino acid derivatives, and as enzyme sources, a protein having polyphosphate kinase activity, or a culture of cells having the ability to produce the protein or a treated matter of the culture, and a protein having the activity to ATP-dependently form the dipeptide or dipeptide derivative from one or more kinds of amino acids or amino acid derivatives, or a culture of cells having the ability to produce the protein or a treated matter of the culture.
    Type: Application
    Filed: June 24, 2005
    Publication date: December 29, 2005
    Applicant: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Shin-ichi Hashimoto, Hajime Ikeda, Makoto Yagasaki
  • Amino acid racemase having low substrate specificity and process for producing racemic amino acid
    Publication number: 20050095670
    Abstract: The present invention provides a protein having low-substrate-specific amino acid racemase activity; DNA encoding the protein; a recombinant DNA comprising the DNA; a transformant carrying the recombinant DNA; a process for producing the protein by using the transformant; and a process for producing a racemic amino acid which comprises allowing a culture of the transformant or a treated matter thereof as an enzyme source and an amino acid to be present in an aqueous medium to racemize the amino acid in the aqueous medium, and recovering the racemic amino acid from the aqueous medium.
    Type: Application
    Filed: February 28, 2003
    Publication date: May 5, 2005
    Inventors: Hajime Ikeda, Yoshiyuki Yonetani, Shin-ichi Hashimoto, Makoto Yagasaki, Kenji Soda
  • Process for producing l-amino acids via fermentation method
    Publication number: 20030059904
    Abstract: According to the present invention, by using a microorganism having the ability to produce the L-amino acid which carries the avtA gene encoding alanine-valine transaminase (transaminase C) and whose alanine-valine transaminase activity is enhanced compared with its parent strain, it is possible to reduce the production of by-product amino acids which disturb purification in L-amino acid production by fermentation, and an industrially advantageous process for producing an L-amino acid can be provided.
    Type: Application
    Filed: September 19, 2002
    Publication date: March 27, 2003
    Inventors: Masato Ikeda, Makoto Yagasaki, Yayoi Abe, Jun-ichi Takano
  • DNA coding for uricase and process for producing uricase
    Patent number: 5376545
    Abstract: The present invention provides a DNA coding for uricase from the genus Cellulomonas and a process for producing uricase using a microorganism which carries a recombinant DNA containing the DNA.
    Type: Grant
    Filed: December 3, 1992
    Date of Patent: December 27, 1994
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Makoto Yagasaki, Shuichi Ishino, Kazuhisa Iwata, Masaki Azuma, Sadao Teshiba, Masaru Hasegawa, Kazuo Yamaguchi, Keiichi Yano, Yoshiharu Yokoo, Yukio Hashimoto