Patents by Inventor Minoru Toya

Minoru Toya 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).

  • Marine gas cylinder apparatus
    Patent number: 6767262
    Abstract: In a marine gas cylinder apparatus provided with a switching valve apparatus capable of switching a communication state among a piston rod side oil chamber, a piston side oil chamber and a gas chamber, an open timing of a poppet valve provided in a communication passage communicated with a gas chamber is made antecedent to an open timing of poppet valves provided in the other communication passages when opening the switching valve apparatus.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: July 27, 2004
    Assignee: Showa Corporation
    Inventors: Shinsuke Sekikawa, Yoshimi Watanabe, Minoru Toya
  • Marine gas cylinder apparatus
    Publication number: 20030228811
    Abstract: In a marine gas cylinder apparatus provided with a switching valve apparatus capable of switching a communication state among a piston rod side oil chamber, a piston side oil chamber and a gas chamber, an open timing of a poppet valve provided in a communication passage communicated with a gas chamber is made antecedent to an open timing of poppet valves provided in the other communication passages when opening the switching valve apparatus.
    Type: Application
    Filed: May 30, 2003
    Publication date: December 11, 2003
    Inventors: Shinsuke Sekikawa, Yoshimi Watanabe, Minoru Toya