Patents by Inventor Shigemi Miyamoto

Shigemi Miyamoto 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).

  • Polynucleotide synthesizing apparatus
    Patent number: 4671941
    Abstract: In an apparatus for synthesizing polynucleotide including a plurality of reactors, bottles charged with reagents and solvents, and change valve means for switching passages between respective bottles and the reactors, the improvement comprises mode selector means between a pressure source and the reactors for switching liquid supply or discharge operation and distributor means for closing or opening passages connected with the reactors to selectively operate the reactors.
    Type: Grant
    Filed: November 13, 1984
    Date of Patent: June 9, 1987
    Assignee: Nippon Zeon Co. Ltd.
    Inventors: Akihiko Niina, Tatsuo Ohira, Shigemi Miyamoto