Patents by Inventor Keita Tasaki

Keita Tasaki 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).

  • Patent number: 10358748
    Abstract: A protective woven fabric of the present invention includes super fiber yarns. The warp of the woven fabric is a covered yarn (1, 4, 5) composed of two or more twisted inorganic filament yarns as core yarns (2a, 2b) and one or more super fiber yarns (3, 3a, 3b, 3c) as covering yarns that are wound and twisted around the core yarns (2a, 2b), and a weft thereof is a super fiber yarn. Preferably, the covered yarn is a W covered yarn in which a twist coefficient K of the covering yarns with respect to the core yarns is 2000 to 30000. Due to this, it is possible to provide a protective woven fabric that, even when the warp and the weft is squeezed or rubbed by the reed, heddles, etc., of a loom, has few defects such as fluff or fiber aggregates and which has a satisfactory weaving pattern while retaining a high protective function.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: July 23, 2019
    Assignee: The Japan Wool Textile Co., Ltd.
    Inventors: Ichiro Sugimoto, Keita Tasaki
  • Publication number: 20180016713
    Abstract: A protective woven fabric of the present invention includes super fiber yarns. The warp of the woven fabric is a covered yarn (1, 4, 5) composed of two or more twisted inorganic filament yarns as core yarns (2a, 2b) and one or more super fiber yarns (3, 3a, 3b, 3c) as covering yarns that are wound and twisted around the core yarns (2a, 2b), and a weft thereof is a super fiber yarn. Preferably, the covered yarn is a W covered yarn in which a twist coefficient K of the covering yarns with respect to the core yarns is 2000 to 30000. Due to this, it is possible to provide a protective woven fabric that, even when the warp and the weft is squeezed or rubbed by the reed, heddles, etc., of a loom, has few defects such as fluff or fiber aggregates and which has a satisfactory weaving pattern while retaining a high protective function.
    Type: Application
    Filed: January 18, 2016
    Publication date: January 18, 2018
    Inventors: Ichiro SUGIMOTO, Keita TASAKI
  • Patent number: 8209948
    Abstract: The multilayer-structured spun yarn of the present invention is a multilayer-structured spun yarn C composed of a core fiber A and a cover fiber B that wraps around the core fiber; the core fiber A is in a range of 20 to 50 wt %; the cover fiber B is in a range of 50 to 80 wt %; the core fiber A contains a para-aramid fiber and is a stretch breaking twist yarn; the cover fiber B contains a flame-retardant acrylic fiber, a polyetherimide fiber, or a meta-aramid fiber; the direction of twist of the stretch breaking yarn and the direction of twist of the multilayer-structured yarn are the same; and the multilayer-structured yarn C has a twist number 1.2 to 1.6 times greater than that of the stretch breaking yarn. The heat-resistant textile of the present invention uses the aforementioned multilayer-structured spun yarn. The heat-resistant protective suit of the present invention uses the aforementioned heat-resistant textile.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: July 3, 2012
    Assignees: The Japan Wool Textile Co., Ltd., Sabic Innovative Plastics IP B.V.
    Inventors: Masanobu Takahashi, Keita Tasaki, Yukimasa Tanimoto
  • Publication number: 20120042442
    Abstract: A fabric for fireproof clothing of the present invention is a fireproof fabric including flame-retardant fibers. The fabric is a woven fabric, a knitted fabric or a nonwoven fabric including 70 to 100 mass % of a polyetherimide fiber and 0 to 30 mass % of another flame-retardant fiber. The flame resistance, the heat resistance, and the wash resistance under ISO 11613-1999 as the international performance standards for fireproof clothing are: (1) flame resistance to be free from hole formation, dripping and melting; and to have afterflame time and afterglow time of not more than 2 seconds; (2) heat resistance to be free from firing, separation, dripping and melting; and to have a shrinkage rate of not more than 5%; and (3) washing resistance to have a shrinkage rate of not more than 3%. The fireproof clothing of the present invention includes the fireproof fabric fabricated as an inner liner.
    Type: Application
    Filed: February 23, 2010
    Publication date: February 23, 2012
    Applicants: SABIC INNOVATIVE PLASTICS IP B.V., THE JAPAN WOOL TEXTILE CO., LTD.
    Inventors: Masanobu Takahashi, Keita Tasaki, Takashi Tamura
  • Publication number: 20100205723
    Abstract: The multilayer-structured spun yarn of the present invention is a multilayer-structured spun yarn C composed of a core fiber A and a cover fiber B that wraps around the core fiber; the core fiber A is in a range of 20 to 50 wt %; the cover fiber B is in a range of 50 to 80 wt %; the core fiber A contains a para-aramid fiber and is a stretch breaking twist yarn; the cover fiber B contains a flame-retardant acrylic fiber, a polyetherimide fiber, or a meta-aramid fiber; the direction of twist of the stretch breaking yarn and the direction of twist of the multilayer-structured yarn are the same; and the multilayer-structured yarn C has a twist number 1.2 to 1.6 times greater than that of the stretch breaking yarn. The heat-resistant textile of the present invention uses the aforementioned multilayer-structured spun yarn. The heat-resistant protective suit of the present invention uses the aforementioned heat-resistant textile.
    Type: Application
    Filed: July 10, 2008
    Publication date: August 19, 2010
    Applicant: THE JAPAN WOOL TEXTILE CO., LTD.
    Inventors: Masanobu Takahashi, Keita Tasaki, Yukimasa Tanimoto