Patents by Inventor Kazuko Takeda

Kazuko Takeda 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 the amount of sidestream smoke reduced
    Patent number: 8151805
    Abstract: A cigarette is provided with a tobacco section including a tobacco filler rod wrapped with an inner wrapper paper sheet containing less than 4% by weight of calcium carbonate and an outer wrapper paper containing calcium carbonate in an amount of 30 g/m2 and a burn adjusting agent in an amount of 3% by weight or more.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: April 10, 2012
    Assignee: Japan Tobacco Inc.
    Inventors: Kazuko Takeda, Yoshiyuki Yamada
  • Cigarette with the amount of sidestream smoke reduced
    Publication number: 20050087203
    Abstract: A cigarette is provided with a tobacco section including a tobacco filler rod wrapped with an inner wrapper paper sheet containing less than 4% by weight of calcium carbonate and an outer wrapper paper containing calcium carbonate in an amount of 30 g/m2 and a burn adjusting agent in an amount of 3% by weight or more.
    Type: Application
    Filed: September 16, 2004
    Publication date: April 28, 2005
    Inventors: Kazuko Takeda, Yoshiyuki Yamada
  • 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
  • Cigarette
    Patent number: 5464028
    Abstract: A vented filter cigarette with a filter having a fiber filter material and a plug wrap paper wrapping the fiber filter material, a tobacco rod, and tipping paper having a plurality of pores and connecting the filter and the tobacco rod. An embossment is formed in a region of the plug wrap paper corresponding to the pores of the tipping paper. The embossment creates a slight gap between the tipping paper and the circumference of the filter around the pores, with the result that the tightness between the tipping paper and the circumference of the filter is loosened, the filter ventilation is increased, and the variation in the filter ventilation is decreased.
    Type: Grant
    Filed: April 11, 1994
    Date of Patent: November 7, 1995
    Assignee: Japan Tobacco, Inc.
    Inventors: Kazuko Takeda, Motohiko Muramatsu, Takashi Koyama
  • Tipping paper and cigarette using the same
    Patent number: 5394895
    Abstract: The vented filter cigarette is produced by combining a filter having a highly air-permeable circumferential surface and a tipping paper having a plurality of pores. The tipping paper has an embossment in the area of the pores formed therein. The embossment serves to create a slight gap between the tipping paper and the circumferential surface of the filter, by which the tightness therebetween is loosened. Thus, the filter ventilation is increased, and the variation in the degree of the ventilation can be reduced.
    Type: Grant
    Filed: August 1, 1994
    Date of Patent: March 7, 1995
    Assignee: Japan Tobacco, Inc.
    Inventors: Motohiko Muramatsu, Kazuko Takeda, Yasuyuki Futamura, Takayoshi Sagawa