Patents by Inventor Tomoyasu Kawabe

Tomoyasu Kawabe 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).

  • Enzyme preparation and method of using the same
    Patent number: 6936445
    Abstract: There is disclosed are an enzyme preparation characterized by a polymer carrier having fine pores with average radius of 200-500 ? and the enzyme is capable of converting an N-substituted cyclic imino ester into an (S)-N-substituted cyclic imino acid, thereby an (S)-N-substituted cyclic imino acid is preferentially produced, and has an amino acid sequence as set forth in SEQ ID NO: 1 or the like.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: August 30, 2005
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tomoyasu Kawabe, Masashi Kamitamari
  • Method for sterilizing transformed cells
    Patent number: 6869791
    Abstract: There is provided a method for sterilizing a transformed microorganism, which is characterized by mixing at a temperature range of 25° C. or higher to less than 35° C. a solution containing a transformed microorganism belonging to Escherichia introduced with a DNA coding for an enzyme having a thermal denaturation temperature of 50° C. or higher, with at least one member selected from the group consisting of monovalent alcohols having one to three carbon atoms and acetone, in an amount of 10 to 35% by weight of the solution.
    Type: Grant
    Filed: December 3, 2001
    Date of Patent: March 22, 2005
    Assignee: Sumitomo Chemical Company, Ltd.
    Inventors: Tomoyasu Kawabe, Kae Hiramine
  • Enzyme preparation and method of using the same
    Publication number: 20030124683
    Abstract: There is disclosed are an enzyme preparation characterized by a polymer carrier having fine pores with average radius of 200-500 Å and the enzyme is capable of converting an N-substituted cyclic imino ester into an (S)—N-substituted cyclic imino acid, thereby an (S)—N-substituted cyclic imino acid is preferentially produced, and has an amino acid sequence as set forth in SEQ ID NO: 1 or the like.
    Type: Application
    Filed: August 30, 2002
    Publication date: July 3, 2003
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Tomoyasu Kawabe, Masashi Kamitamari
  • Method for sterilizing transformed cells
    Publication number: 20030044894
    Abstract: There is provided a method for sterilizing a transformed microorganism, which is characterized by mixing at a temperature range of 25° C. or higher to less than 35° C. a solution containing a transformed microorganism belonging to Eschcrichia introduced with a DNA coding for an enzyme having a thermal denaturation temperature of 50° C. or higher, with at least one member selected from the group consisting of monovalent alcohols having one to three carbon atoms and acetone, in an amount of 10 to 35% by weight of the solution.
    Type: Application
    Filed: December 3, 2001
    Publication date: March 6, 2003
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Tomoyasu Kawabe, Kae Hiramine