Patents by Inventor Masao Minagawa

Masao Minagawa 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).

  • Medal counter for counting medals used in game machine
    Patent number: 5530730
    Abstract: A medal counting apparatus installed in a game parlor for counting medals which a game player has won, is disclosed. The medal counting apparatus comprises a counter for counting the medals, a medal supplying mechanism for receiving the medals to be dumped and for supplying them sequentially to the counter, a dump restraining unit for restraining the medals from being dumped into the medal supplying mechanism and a control unit for controlling operations of the medal supplying mechanism and the dump restraining unit. The medal supply control means puts the medal supplying mechanism into a stopped state when the dump restraining unit restrains the medals from being dumped and into an operation state when the dump restraining unit permits dumping of the medals. The control unit also instructs the dump restraining unit to close the receiving hopper when a medal dump restraining signal is input from the outside or the counter has not been used for a certain period of time.
    Type: Grant
    Filed: December 13, 1994
    Date of Patent: June 25, 1996
    Assignee: Kabushiki Kaisha Ace Denken
    Inventors: Takatoshi Takemoto, Koichi Tsubota, Masao Minagawa, Moriyuki Aoyama
  • Coin-to-bank bill exchanging machine
    Patent number: D371887
    Type: Grant
    Filed: August 30, 1994
    Date of Patent: July 16, 1996
    Assignee: Kabushiki Kaisha Ace Denken
    Inventors: Masao Minagawa, Hideyuki Kadomatsu, Takatoshi Takemoto