Patents by Inventor Seiu Sakai

Seiu Sakai 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).

  • Coin handling apparatus for a vending machine
    Patent number: 3948377
    Abstract: A vending machine adapted to temporarily retain a coin of large denomination which is not usable as a change coin among the deposited coins and store coins of small denominations in coin stacking tubes. When the deposited money is to be returned, coins of the same denominations as the deposited small denomination coins are paid out from the coin stacking tubes while the retained large denomination coin itself is also returned. In event the vending machine is short of change coins, the vending machine vends the required article only when a coin requiring no change is deposited and automatically returns the deposited coin when a coin requiring change is deposited.
    Type: Grant
    Filed: October 29, 1974
    Date of Patent: April 6, 1976
    Assignee: Nippon Coinco Co., Ltd.
    Inventors: Yukichi Hayashi, Yutaka Yokoda, Masayuki Tamura, Shinichi Kobayashi, Kazuyuki Akai, Seiu Sakai