Patents by Inventor Toyoji Muratani

Toyoji Muratani 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).

  • Diaphragm valve
    Patent number: D297971
    Type: Grant
    Filed: May 28, 1985
    Date of Patent: October 4, 1988
    Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yoshihiro Kiyota, Toyoji Muratani
  • Diaphragm valve
    Patent number: D299521
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: January 24, 1989
    Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yoshihiro Kiyota, Toyoji Muratani