Patents by Inventor Ioki Hara

Ioki Hara 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).

  • Sailboat
    Patent number: 5601044
    Abstract: A sailboat having an improved mast and boom arrangement wherein the mast is pivotally supported relative to the hull about an axis that is disposed rearwardly from the mast and close to but in front of the normal center of pressure on the sail carried thereby so as to reduce the turning moments on the hull during sailing and improve the speed performance. An improved pivotal arrangement for the boom is disclosed, as is a pivotal connection between the mast and the boom which permits the mast to be easily raised and lowered.
    Type: Grant
    Filed: August 4, 1995
    Date of Patent: February 11, 1997
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Ioki Hara