Patents by Inventor Atsunari Hanada

Atsunari Hanada 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).

  • TOBACCO SHEET, TOBACCO ROD AND SMOKING ARTICLE
    Publication number: 20220071275
    Abstract: A tobacco sheet containing 15-60 mass % of a tobacco ingredient and 20-70 mass % of cellulose fibers, and having a thickness of 55-85 ?m, a basis weight of 25-42 g/m2, and a tensile strength of 12 N/15 mm or more.
    Type: Application
    Filed: November 18, 2021
    Publication date: March 10, 2022
    Applicant: Japan Tobacco Inc.
    Inventors: Atsunari Hanada, Takayoshi Motegi
  • Low sub-flow smoke type cigarette
    Patent number: 6405734
    Abstract: A low-sidestream-smoke cigarette comprises a dual-structure wrapper that wraps filler shreds (5) therein. An inner wrapper (6) of the wrapper is formed of papermaking sheet tobacco or slurry sheet tobacco, while an outer wrapper (8) is ordinary paper. In the case where the inner wrapper (6) is slurry sheet tobacco, the inner wrapper (6) wraps the filler shreds (5) therein so that its smooth surface is situated on the side of the filler shreds (5).
    Type: Grant
    Filed: July 20, 2000
    Date of Patent: June 18, 2002
    Assignee: Japan Tobacco Inc.
    Inventors: Atsunari Hanada, Masahiko Nagai, Hisashi Ishikawa, Toru Sakurai
  • Smoking paper for smoking article
    Patent number: 6138684
    Abstract: The paper for rolling a smoking article of the present invention contains particle-form calcium carbonate (30 to 60 wt %), calcined clay (5 to 30 wt %) and pulp. Furthermore, an alkaline metal salt is contained as a chemical additive. In addition, kaolin is contained in the paper. The basis weight of the paper falls within the range of 20 to 70 g/m.sup.2. Optical characteristics of the paper and the burning characteristics and ash characteristics of a cigarette are improved and the side stream smoke is reduced.
    Type: Grant
    Filed: May 7, 1997
    Date of Patent: October 31, 2000
    Assignee: Japan Tobacco Inc.
    Inventors: Akira Yamazaki, Kazuko Takeda, Atsunari Hanada, Tomoaki Ogawa