Patents by Inventor Shunichi Matsuura

Shunichi Matsuura 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).

  • Spectrofluorometer
    Patent number: 5500536
    Abstract: A fluorescence output port sandwiched between light-shielding members of a sample cell is provided at a position corresponding to an entrance slit of a fluorescence monochromator and an excitation light side port of the sample cell is provided at a position corresponding to an exit slit of an excitation side monochromator.
    Type: Grant
    Filed: March 21, 1994
    Date of Patent: March 19, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Taro Nogami, Shunichi Matsuura, Akira Kuroda
  • Fluorescence spectrophotometer for absorption spectrum analysis
    Patent number: 3936190
    Abstract: A fluorescence spectrophotometer having a beam splitter placed between an exit slit of an excitation monochromator and a specimen. Part of the excitation radiation is conducted to a first light quantum meter by said beam splitter and a reference photomultiplier is provided for receiving fluorescence from said first light quantum meter. A second light quantum meter is placed at the position normally occupied by a specimen cell and first and second absorbing cells are disposed in front of said first and second light quantum meters, respectively.
    Type: Grant
    Filed: April 16, 1974
    Date of Patent: February 3, 1976
    Assignees: The Perkin-Elmer Corporation, Hitachi, Ltd.
    Inventors: Yasushi Ohnishi, Shunichi Matsuura