Patents by Inventor Masanori Muramoto

Masanori Muramoto 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).

  • Method for producing amide compound
    Patent number: 8329843
    Abstract: A method for producing an amide compound from a nitrile compound in an aqueous medium in the presence of a catalyst having a nitrile hydratase activity wherein the concentration of benzene in the aqueous medium is 4.0 ppm or less and a method for producing an amide-based polymer excellent in quality from the amide compound. Also provided are a method for more efficiently producing an acrylamide with higher quality by a microbial catalyst containing a nitrile hydratase and the like and a method for producing an acrylamide-based polymer, which is excellent in hue, has a good balance between water solubility and high molecular weight and is excellent in quality.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: December 11, 2012
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Hiroko Shibamoto, Toshikazu Aikawa, Teruo Arii, Masanori Muramoto, Takeshi Fukuda, Kiyoshi Ito, Takeya Abe, Souichi Hazama
  • METHOD FOR PRODUCING AMIDE COMPOUND
    Publication number: 20110288255
    Abstract: A method for producing an amide compound from a nitrile compound in an aqueous medium in the presence of a catalyst having a nitrile hydratase activity wherein the concentration of benzene in the aqueous medium is 4.0 ppm or less and a method for producing an amide-based polymer excellent in quality from the amide compound. Also provided are a method for more efficiently producing an acrylamide with higher quality by a microbial catalyst containing a nitrile hydratase and the like and a method for producing an acrylamide-based polymer, which is excellent in hue, has a good balance between water solubility and high molecular weight and is excellent in quality.
    Type: Application
    Filed: August 3, 2011
    Publication date: November 24, 2011
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Hiroko Shibamoto, Toshikazu Aikawa, Teruo Arii, Masanori Muramoto, Takeshi Fukuda, Kiyoshi Ito, Takeya Abe, Souichi Hazama
  • Method For Producing Amide Compound
    Publication number: 20090171051
    Abstract: [Problems] The present invention provides a method for efficiently producing a corresponding amide compound from a nitrile compound by a reaction using a nitrile hydratase and a method for producing an amide-based polymer excellent in quality from the amide compound. In addition, the present invention provides a method for more efficiently producing an acrylamide with higher quality by a microbial catalyst containing a nitrile hydratase and the like and a method for producing an acrylamide-based polymer, which is excellent in hue, has a good balance between the water solubility and the high molecular weight and is also excellent in quality, by using the acrylamide. [Means for Solving the Problems] The method for producing an amide compound of the present invention is characterized in that in a method for producing an amide compound from a nitrile compound in an aqueous medium in the presence of a catalyst having a nitrile hydratase activity, the concentration of benzene in the aqueous medium is 4.
    Type: Application
    Filed: October 6, 2006
    Publication date: July 2, 2009
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Hiroko Shibamoto, Toshikazu Aikawa, Teruo Arii, Masanori Muramoto, Takeshi Fukuda, Kiyoshi Ito, Takeya Abe, Souichi Hazama