Patents by Inventor George Matsuyama

George Matsuyama 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).

  • Shrink tube liquid junction structure for electrochemical electrodes
    Patent number: 4255244
    Abstract: A liquid junction structure for an electrochemical reference electrode or a reference portion of an electrochemical combination electrode comprising an element of capillary material restrained between first and second plastic shrink tubes.
    Type: Grant
    Filed: July 6, 1979
    Date of Patent: March 10, 1981
    Assignee: Beckman Instruments, Inc.
    Inventors: George Matsuyama, Grover F. Lindell
  • Short path liquid junction structure for electrochemical electrodes
    Patent number: 4218299
    Abstract: A short path liquid junction structure is defined through a porous ceramic layer coated circumferentially on an electrochemical electrode glass body by an elastomeric O-ring sealing member circumferentially engaging the ceramic layer in an annular line contact seal. The length of the liquid junction path is the short distance through the porous ceramic layer around and past the line contact seal.
    Type: Grant
    Filed: July 6, 1979
    Date of Patent: August 19, 1980
    Assignee: Beckman Instruments, Inc.
    Inventors: Grover F. Lindell, George Matsuyama