Patents by Inventor Kazumasa Okano

Kazumasa Okano 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).

  • Method for producing cylinder having scavenging passages for two-cycle internal combustion engine
    Patent number: 4970769
    Abstract: A method for manufacturing a cylinder having scavenging passages for a two-cycle internal combustion engine is disclosed which comprises the steps of forming bulged portions protruded radially outwardly in a portion of a cylindrical liner, and surrounding the liner by casting through a high pressure diecast method, thereby form a main part of the cylinder.
    Type: Grant
    Filed: April 18, 1989
    Date of Patent: November 20, 1990
    Assignee: Kioritz Corporation
    Inventors: Hiroshi Iesato, Kazuyuki Nishiwaki, Kazumasa Okano, Isao Masuda, Akira Sageshima, Minoru Yonekawa