Patents by Inventor Hayato Hasebe

Hayato Hasebe 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).

  • Cigarette with a dual-structure filter
    Patent number: 6206007
    Abstract: A cigarette with a dual-structure filter includes a dual-structure filter having a first filter element and a second filter element arranged downstream of the first filter element, a tobacco rod arranged upstream of the filter, and a tip paper covering a downstream end portion of the tobacco rod and a circumferential surface of the filter. At least one row of a plurality of holes are formed in the tip paper in a circumferential direction of the filter. An air-permeation resistance per unit length of the second filter element is at least twice that of the first filter element. An air inflow rate from the tip paper is at least 20%.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: March 27, 2001
    Assignee: Japan Tobacco Inc.
    Inventors: Takaichi Yoshida, Hayato Hasebe, Kazuyo Kaneki, Shinichiro Tanaka