Patents by Inventor Yoshiko Katayama

Yoshiko Katayama 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).

  • Fluorescence detection type electrophoresis apparatus
    Patent number: 4971677
    Abstract: In an electrophoresis apparatus for separating and detecting a sample of DNA or RNA labelled with fluorescence, use is made of a gel plate having a polyacrylamide concentration of 2 to 6% in order to greatly shorten the time required for the measurement.
    Type: Grant
    Filed: February 15, 1989
    Date of Patent: November 20, 1990
    Assignee: Hitachi, Ltd.
    Inventors: Hideki Kambara, Yoshiko Katayama, Tetsuo Nishikawa