Patents by Inventor Shuhei Ishiyama

Shuhei Ishiyama 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).

  • Crankshaft support structure of internal combustion engine
    Patent number: 7273030
    Abstract: A crankshaft support structure of an internal combustion engine, comprising a crankshaft having journal portions a saddle-shaped bearing caps respectively mounted on an undersurfaces of the journal support bases formed in a lower portion of the cylinder block in such a manner as to straddle the journal portions being accommodated in the bearing portions, whereby the journal portions are rotatably supported wherein, of the undersurface of each of the journal support bases, an undersurface portion overlapping with an edge portion of each of end faces on both sides of each of the bearing caps is formed to be a thick portion thicker than other portions, and a mount surface to be positioned on the undersurface overlapping with the thick portion of each of the bearing caps is formed along the thick portion.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: September 25, 2007
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Akira Yoshihara, Tsuyoshi Nishida, Satoshi Higashide, Shuhei Ishiyama, Kinichi Furukawa
  • Crankshaft support structure of internal combustion engine
    Publication number: 20060090724
    Abstract: A crankshaft support structure of an internal combustion engine, comprising a crankshaft having journal portions a saddle-shaped bearing caps respectively mounted on an undersurfaces of the journal support bases formed in a lower portion of the cylinder block in such a manner as to straddle the journal portions being accommodated in the bearing portions, whereby the journal portions are rotatably supported wherein, of the undersurface of each of the journal support bases, an undersurface portion overlapping with an edge portion of each of end faces on both sides of each of the bearing caps is formed to be a thick portion thicker than other portions, and a mount surface to be positioned on the undersurface overlapping with the thick portion of each of the bearing caps is formed along the thick portion.
    Type: Application
    Filed: October 27, 2005
    Publication date: May 4, 2006
    Inventors: Akira Yoshihara, Tsuyoshi Nishida, Satoshi Higashide, Shuhei Ishiyama, Kinichi Furukawa