Patents by Inventor Shigeki Nakabayashi

Shigeki Nakabayashi 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).

  • Partition plate for intake port, intake port molding sand core and cylinder head
    Patent number: 7100560
    Abstract: A partition plate (tumble plate) for an intake port is previously placed in an intake port molding sand core (port core) for forming an intake port of a cylinder head, and cast-in as the cylinder head is cast-molded, to partition the intake port into a plurality of ports. The partition plate is provided with shift preventing portion that prevent positional shift relative to the intake port molding sand core.
    Type: Grant
    Filed: October 20, 2004
    Date of Patent: September 5, 2006
    Assignees: Nissan Motor Co., Ltd., Aichi Machine Industry Co., Ltd.
    Inventors: Kenji Yageta, Shigeki Nakabayashi
  • Partition plate for intake port, intake port molding sand core and cylinder head
    Publication number: 20050081822
    Abstract: A partition plate (tumble plate) for an intake port is previously placed in an intake port molding sand core (port core) for forming an intake port of a cylinder head, and cast-in as the cylinder head is cast-molded, to partition the intake port into a plurality of ports. The partition plate is provided with shift preventing portion that prevent positional shift relative to the intake port molding sand core.
    Type: Application
    Filed: October 20, 2004
    Publication date: April 21, 2005
    Inventors: Kenji Yageta, Shigeki Nakabayashi