Patents by Inventor Masami Himeda

Masami Himeda 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).

  • Hull for sailing ship
    Patent number: 5220878
    Abstract: A hull for sailing ship makes it possible to sail mostly by sail and by engine when necessity arises. An auxiliary propulsion engine is installed within a ballast portion protruding downward from the bottom of the hull body, so that the auxiliary propulsion engine can also be used as ballast.
    Type: Grant
    Filed: October 25, 1991
    Date of Patent: June 22, 1993
    Assignee: Kabushiki Kaisha Naval Engineering
    Inventor: Masami Himeda
  • Hull for sailing ship
    Patent number: 5103752
    Abstract: A hull for sailing ship makes it possible to sail mostly by sail and by engine when necessity arises. An auxiliary propulsion engine is installed within a ballast portion protruding downward from the bottom of the hull body, so that the auxiliary propulsion engine can also be used as ballast.
    Type: Grant
    Filed: April 9, 1990
    Date of Patent: April 14, 1992
    Assignee: Kabushiki Kaisha Naval Engineering
    Inventor: Masami Himeda