Patents by Inventor Atushi Nakazawa

Atushi Nakazawa 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 of producing microcapsules
    Patent number: 4066568
    Abstract: Microcapsules are produced by dispersing and emulsifying hydrophobic material such as water insoluble material, color forming material, color forming assistant, oil and mixture of oil and various medicines dissolved therein in gelatin aqueous solution so as to produce minute particles, adding coacervate forming agent composed of phytic acid and/or its salt to the above system to form gelatin and coacervate on the surface of minute cores of the hydrophobic material thereby forming coating film thereon into capsule form.
    Type: Grant
    Filed: July 30, 1976
    Date of Patent: January 3, 1978
    Assignee: Nippon Pulp Industry Company Limited
    Inventors: Atushi Nakazawa, Muneichi Ono