Patents by Inventor Ryutaro Tsurizumi

Ryutaro Tsurizumi 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).

  • Smoking article
    Patent number: 8616217
    Abstract: A smoking article comprises a multilayered tube member (9) including at least one metal layer and one paper layer, a carbon heat source (4) arranged in an end portion of the tube member (9) to be at least partly in direct close contact with an inner surface of the tube member (9), the carbon heat source emitting heat when ignited, a smoking flavor releasing source (8) arranged in the tube member (9) to adjoin the carbon heat source (4), and a holder part (14) keeping the carbon heat source (4) in direct contact with said end portion and holding the carbon heat source (4) against said end portion.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: December 31, 2013
    Assignee: Japan Tobacco Inc.
    Inventors: Ryutaro Tsurizumi, Hiroshi Sasaki, Naoki Hamamoto, Tomoichi Watanabe