Patents by Inventor Masato Sekiyama

Masato Sekiyama 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: 11629517
    Abstract: A sliding seismic isolation device includes a structure fixation plate having a first sliding surface and a metallic slider having a second sliding surface contacting the first sliding surface. A friction member composed of a single-layer fabric is attached to the first sliding surface, the second sliding surface, or both of the first sliding surface and the second sliding surface. One of a warp and a weft is formed of multiple plied yarns into which high-strength fibers and PTFE fibers are twisted together and the other of the warp and the weft is formed of multiple high-strength fibers in the single-layer fabric. The single-layer fabric has a twill weave and is woven such that the plied yarns of the one forming the single-layer fabric are exposed at a surface opposite from the attachment side of the friction member more than the high-strength fibers of the other forming the single-layer fabric.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: April 18, 2023
    Assignees: NIPPON STEEL ENGINEERING CO., LTD., TORAY INDUSTRIES, INC.
    Inventors: Shinsuke Yamazaki, Tadayuki Noro, Yoshinao Konishi, Atsushi Watanabe, Koji Nishimoto, Masato Sekiyama, Yuki Ninomiya, Masaru Harada
  • Publication number: 20230027891
    Abstract: For providing a fabric that has a low frictional property and can exhibit long-term tribological properties even when the fabric is subjected to a high-speed frictional force under a high load, there is provided a fabric according to the present invention is a fabric in which a composite yarn of fluororesin fibers A and fibers B other than fluororesin fibers is used for at least one of a warp yarn and a weft yarn, and the fabric is characterized in that a mass ratio ? of the fluororesin fibers A in the composite yarn is 5 to 70%, and a ratio of the area ratio X of the fluororesin fibers in a fabric surface to a mass ratio Y of the fluororesin fibers in the fabric is 1 or more and 5 or less. This fabric can be usefully used for a cable cover for a robot arm.
    Type: Application
    Filed: October 27, 2020
    Publication date: January 26, 2023
    Applicant: TORAY Industries, Inc.
    Inventors: Masato SEKIYAMA, Yuki NINOMIYA, Masaru HARADA
  • Publication number: 20220145655
    Abstract: A sliding seismic isolation device includes a structure fixation plate having a first sliding surface and a metallic slider having a second sliding surface contacting the first sliding surface. A friction member composed of a single-layer fabric is attached to the first sliding surface, the second sliding surface, or both of the first sliding surface and the second sliding surface. One of a warp and a weft is formed of multiple plied yarns into which high-strength fibers and PTFE fibers are twisted together and the other of the warp and the weft is formed of multiple high-strength fibers in the single-layer fabric. The single-layer fabric has a twill weave and is woven such that the plied yarns of the one forming the single-layer fabric are exposed at a surface opposite from the attachment side of the friction member more than the high-strength fibers of the other forming the single-layer fabric.
    Type: Application
    Filed: October 27, 2020
    Publication date: May 12, 2022
    Inventors: Shinsuke YAMAZAKI, Tadayuki NORO, Yoshinao KONISHI, Atsushi WATANABE, Koji NISHIMOTO, Masato SEKIYAMA, Yuki NINOMIYA, Masaru HARADA
  • Publication number: 20220065293
    Abstract: A sliding fabric has high wear resistance and can exhibit a long-term sliding property even when subjected to repetitive frictional force accompanied by shearing force. The sliding fabric is a single-layer plain-woven fabric configured to include fluororesin fibers A and at least one type of fibers B having a tensile strength of 10 cN/dtex or more, the sliding fabric having a ratio of 1.5 or more between an area ratio of the fluororesin fibers A on one surface thereof and an area ratio of the fluororesin fibers A on another surface.
    Type: Application
    Filed: November 22, 2019
    Publication date: March 3, 2022
    Inventors: Masato Sekiyama, Hiroshi Suyama, Yuki Ninomiya, Masaru Harada