Patents by Inventor Mamoru Toyoda

Mamoru Toyoda 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).

  • Patent number: 4698991
    Abstract: A method of and apparatus for controlling forming press conditions aids in maintaining stability in a mechanical double action press forming provided with an upper die (inner) and an outer ram (outer). These dies are driven independently wherein press conditions related to the forming process, such as a hydraulic pressure and pneumatic pressure, are automatically corrected by feedback so as to be maintained to preset values corresponding to the change of the inner stroke during the forming process. Abnormal operation can also be detected and corrected immediately by detecting the change of the press conditions during the forming process continuously or intermittently.
    Type: Grant
    Filed: August 16, 1985
    Date of Patent: October 13, 1987
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kazunari Kirii, Mamoru Toyoda, Masatoki Utsumi, Akio Asai