Patents by Inventor Katsuhiko Kainuma

Katsuhiko Kainuma 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).

  • Muffler for Internal Combustion Engine
    Publication number: 20120305330
    Abstract: A muffler for an internal combustion engine includes an outer shell, an inlet pipe, an outlet pipe, and at least one constricted part. The at least one constricted part is provided in at least one of the inlet pipe and the outlet pipe on an open side thereof opening toward an inside of the outer shell. The at least one constricted part has a cross-sectional area smaller than a cross-sectional area of the at least one of the inlet pipe and the outlet pipe, which is provided with the at least one constricted part.
    Type: Application
    Filed: February 1, 2011
    Publication date: December 6, 2012
    Applicant: FUTABA INDUSTRIAL CO., LTD.
    Inventor: Katsuhiko Kainuma