Patents by Inventor Yuko Sumitomo

Yuko Sumitomo 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).

  • Publication number: 20150292129
    Abstract: Between one course and the other course adjacent to each other, an amount of elastic yarns for the other course is set smaller than that for the one course so that the elastic yarn knitted into the other course is stretched by a resilience of the elastic yarn knitted into the one course contracting from a stretched state when being knitted. When making a power-enhanced knit fabric, elastic yarns are knitted under tension, so as to generate a difference in amounts of stretch of the elastic yarns during knitting, thereby producing a difference between repulsive forces of the elastic yarns for each pair of adjacent courses.
    Type: Application
    Filed: November 1, 2013
    Publication date: October 15, 2015
    Inventors: Yuko Sumitomo, Hiroko Tsutsumi, Ryuzo Suzuki
  • Patent number: 8028547
    Abstract: A warp knitted fabric having the isotropy of strength. The warp knitted fabric is provided with a fabric weave and insertion yarn groups (14, 16). The insertion yarn group (14) comprises four yarns (Y4a-Y4d) of the same type. The insertion yarn group (16) comprises four yarns (Y5a-Y5d) of the same type. The yarns (Y4a-Y4d, Y5a-Y5d) are inserted into a warp-knitted fabric weave in the warp direction while being arranged parallel to each other at an interval of one wale in the weft direction. Each of the yarns (Y4a-Y4d, Y5a-Y5d) comprises a portion (14a) extending as a whole in the direction crossing the warp direction, a portion (14b) extending as a whole in the direction crossing the warp direction, and a portion (14c) extending as a whole in the direction extending along the warp direction and connecting the portions (14a, 14b) to each other. One of the yarns (Y4a-Y4d) is overlapped with a corresponding one of the yarns (Y5a-Y5d) when viewed from the thickness direction.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: October 4, 2011
    Assignee: Wacoal Corp.
    Inventors: Hiroyuki Suzuki, Ryuzo Suzuki, Yuko Sumitomo, Sachie Nakase
  • Publication number: 20110056248
    Abstract: A warp knitted fabric having the isotropy of strength. The warp knitted fabric is provided with a fabric weave and insertion yarn groups (14, 16). The insertion yarn group (14) comprises four yarns (Y4a-Y4d) of the same type. The insertion yarn group (16) comprises four yarns (Y5a-Y5d) of the same type. The yarns (Y4a-Y4a Y5a-Y5d) are inserted into a warp-knitted fabric weave in the warp direction while being arranged parallel to each other at an interval of one wale in the weft direction. Each of the yarns (Y4a-Y4d, Y5a-Y5d) comprises a) portion (14a) extending as a whole in the direction crossing the warp direction, a portion (14b) extending as a whole in the direction crossing the warp direction, and a portion (14c) extending as a whole in the direction extending along the warp direction and connecting the portions (14a, 14b) to each other. One of the yarns (Y4a-Y4d) is overlapped with a corresponding one of the yarns (Y5a-Y5d) when viewed from the thickness direction.
    Type: Application
    Filed: April 24, 2009
    Publication date: March 10, 2011
    Applicant: WACOAL CORP.
    Inventors: Hiroyuki Suzuki, Ryuzo Suzuki, Yuko Sumitomo, Sachie Nakase