Patents by Inventor Yasuji Yamamoto

Yasuji Yamamoto 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).

  • Internal combustion engine intake passage
    Patent number: 4768487
    Abstract: A spacer, which is interposed between a cylinder head and an intake manifold in order to facilitate installation of a swirl control valve or valves, is made of thermosetting phenol or epoxy resin so as to prevent the transfer of heat from the cylinder head to the intake manifold. The spacer installs thereon a fuel injector or injectors and may be provided with a fuel supply passage, pressure regulator, fuel damper, etc. as an integral unit.
    Type: Grant
    Filed: November 13, 1986
    Date of Patent: September 6, 1988
    Assignee: Nissan Motor Company, Limited
    Inventors: Yasuji Yamamoto, Haruo Yuzawa, Teruyoshi Nishihara