Patents by Inventor Yasuo Katougi

Yasuo Katougi 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).

  • Sample supporting device having small contact region with sample suitable for ventilation-characteristics measuring apparatus
    Patent number: 4912964
    Abstract: A sample supporting device includes a cylindrical body, a sample supporting member, and a holding ring member. The sample supporting member made of a rubbery material is detachably mounted on the holding ring member, which are detachably mounted inside the cylindrical body so as to define an airtight chamber. The sample supporting member is constructed of a cylindrical outer peripheral portion, a film-shaped separating wall, and a sample supporting hole. Then, a sample such as a cigarette is supported to measure ventillation-characteristics thereof by applying suction pressure to the separating wall so as to enlarge the diameter of the sample supporting hole.
    Type: Grant
    Filed: September 8, 1989
    Date of Patent: April 3, 1990
    Assignee: Japan Tobacco, Inc.
    Inventors: Kazuyuki Ohtsuki, Yoshiaki Kawamura, Yasuo Katougi