Patents by Inventor Hisao Hanafusa

Hisao Hanafusa 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).

  • Beverage container with bifurcated dispensing lid
    Patent number: 4913305
    Abstract: The invention features a beverage container having a large, semi-circular liquid dispensing opening. The opening is operatively caused to be unsealed by the action of a finger tab.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: April 3, 1990
    Inventors: Hisao Hanafusa, Nobu Fukui
  • Beverage container with dual dispensing tabs
    Patent number: 4872597
    Abstract: The invention features a beverage container having a small and a large liquid dispensing opening. Each opening is operatively caused to be unsealed by the action of respective finger tabs. The two tabs act independently of each other despite being interleaved for the purpose of a compact design. The large opening features the unsealing of an entire lid portion of the container.
    Type: Grant
    Filed: October 13, 1988
    Date of Patent: October 10, 1989
    Inventor: Hisao Hanafusa