Patents by Inventor Junji Hakamata

Junji Hakamata 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).

  • Direct fuel injection for engine
    Patent number: 6276338
    Abstract: A direct fuel injected engine includes an improved construction for preventing a fuel injector from holding considerable heat therein. A cylinder head of the engine has a cavity opened to a combustion chamber. A fuel injector is placed within the cavity and is arranged to directly spray fuel into the combustion chamber. At least one heat insulator is disposed between the cylinder head and the fuel injector to insulate the fuel injector, at least in part, generally from the cylinder head.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: August 21, 2001
    Assignee: Sanshin Kogyo Kabushiki Kaisha
    Inventors: Masahiko Kato, Junji Hakamata