Patents by Inventor Natsuko Morooka

Natsuko Morooka 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 acrylamide using a microbial catalyst having been washed with aqueous acrylic acid solution
    Patent number: 7205133
    Abstract: Provided is a process for producing acrylamide with good storage stability and improved acrylamide polymer physical properties using a microbial catalyst. A microbial catalyst having catalytic activity to convert from acrylonitrile to acrylamide is washed with an aqueous acrylic acid solution, and then the washed microbial catalyst is used for the conversion reaction, so that the production of the above acrylamide is achieved.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: April 17, 2007
    Assignee: Dia-Nitrix Co., Ltd.
    Inventors: Hiroyasu Banba, Natsuko Morooka
  • Process for producing acrylamide using a microbial catalyst having been wahed with aqueous acrylic acid solution
    Publication number: 20040086986
    Abstract: Provided is a process for producing acrylamide with good storage stability and improved acrylamide polymer physical properties using a microbial catalyst. A microbial catalyst having catalytic activity to convert from acrylonitrile to acrylamide is washed with an aqueous acrylic acid solution, and then the washed microbial catalyst is used for the conversion reaction, so that the production of the above acrylamide is achieved.
    Type: Application
    Filed: September 29, 2003
    Publication date: May 6, 2004
    Inventors: Hiroyasu Banba, Natsuko Morooka