Patents by Inventor Akio Esaka

Akio Esaka 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).

  • Patent number: 4319751
    Abstract: A competitive amusement game apparatus in which a player selectively moves a playing member pivotally mounted on a base housing toward an opposing playing member in an effort to strike the head of the opposing playing member. Each of the playing members includes a pair of arms pivotally connected to a body and having a head releasably attached to and positioned on the body. A shield is connected to the outer end of one of the arms and a hammer is connected to the outer end of the other of the arms for each of the playing members. The hammer of one playing member will strike the head of the opposing playing member to disengage the head of that playing member if the shield of the opposing playing member is not in position in front of the head. If the shield of the opposing playing member is in position, a hammer when moved toward it will simply srike that shield and not reach the head of the opposing playing member.
    Type: Grant
    Filed: May 16, 1980
    Date of Patent: March 16, 1982
    Assignee: Epoch Company, Ltd.
    Inventors: Minoru Kurushima, Akio Esaka