Patents by Inventor Hiroshi Hoya

Hiroshi Hoya 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).

  • Liquid fuel atomizing unit for miniature jet engine
    Patent number: 5469706
    Abstract: A structure having radial holes extending from a ring passage communicated with a revolution lead fittings having spiral grooves and fuel lead fittings having truncated cone shaped holes and straight holes, and further provided with an outer fixing ring having spray holes and hemispherical recesses.
    Type: Grant
    Filed: November 9, 1994
    Date of Patent: November 28, 1995
    Assignee: Sophia Precision Corp.
    Inventor: Hiroshi Hoya
  • Hydraulic damper
    Patent number: 5307907
    Abstract: A hydraulic damper is disclosed which has a contraction phase one-way passage way which allows a flow of damping fluid in contraction phase, an extension phase one-way passage way which allows a flow of damping fluid in extension phase, and a valve element in the form of a hollow control rod. The valve element has a neutral position in which both of the contraction phase and extension phase one-way passage ways are open, a first displaced position in which the extension phase one-way passage way is restricted with the contraction phase one-way passage way left open, and a second displaced position in which the contraction phase one-way passage way is restricted with said extension phase one-way passage way left open.
    Type: Grant
    Filed: June 10, 1992
    Date of Patent: May 3, 1994
    Assignee: Atsugi Unisia Corporation
    Inventors: Michiya Nakamura, Kimihisa Kasajima, Hiroshi Hoya