Patents by Inventor Ryuji Kamimura

Ryuji Kamimura 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: 11130467
    Abstract: An airbag fabric comprising a synthetic fiber, the fiber having a total fineness of 200 to 400 dtex, and the fabric having an average edgecomb resistance retention in the warp and weft directions after heating at 210° C. for 30 seconds of 60% or more and a residual shrinkage of 1.5% or less in both the warp and weft directions.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: September 28, 2021
    Assignee: TOYOBO CO., LTD.
    Inventors: Ryuji Kamimura, Tsutomu Akechi
  • Publication number: 20200353889
    Abstract: Problem: To provide an airbag fabric and a coated fabric for airbags that are lightweight and compact while maintaining the tensile strength required for airbags, and that can mitigate damage to seams of an airbag when the airbag deploys; and that allow for stable airbag deployment. Solution: An airbag fabric that is a fabric comprising a synthetic fiber, the fiber that constitutes the fabric having a total fineness of 200 to 400 dtex, an average edgecomb resistance retention in the warp and weft directions after heating at 210° C. for 30 seconds of 60% or more, and a residual shrinkage of 1.5% or less in both the warp and weft directions.
    Type: Application
    Filed: August 17, 2018
    Publication date: November 12, 2020
    Applicant: TOYOBO CO., LTD.
    Inventors: Ryuji Kamimura, Tsutomu Akechi
  • Patent number: 10549711
    Abstract: The purpose of the present invention is to provide an airbag-use non-coated woven fabric that achieves light in weight, compact in size, and low air permeability, and an airbag-use woven fabric having low air permeability, being flexible, and exhibiting good package ability without impairing mechanical strength of the woven fabric, and an airbag that uses the airbag-use woven fabric. The airbag-use woven fabric including a base fabric, wherein a yarn widening ratio of unwoven weaving yarn of fibers that constitute the base fabric is not less than 2.4 and not more than 3.5, or including single yarn fibers having a substantially triangular cross sectional shape and a modification degree of 1.3 to 2.2; having a tear strength of not less than 120 N; and having an air permeability under a pressure difference of 20 kPa of not more than 0.65 L/cm2/min.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: February 4, 2020
    Assignee: TOYOBO CO., LTD.
    Inventors: Hirokazu Nishimura, Yusuke Kojyo, Ryuji Kamimura
  • Publication number: 20180086301
    Abstract: The purpose of the present invention is to provide an airbag-use non-coated woven fabric that achieves light in weight, compact in size, and low air permeability, and an airbag-use woven fabric having low air permeability, being flexible, and exhibiting good package ability without impairing mechanical strength of the woven fabric, and an airbag that uses the airbag-use woven fabric. The airbag-use woven fabric including a base fabric, wherein a yarn widening ratio of unwoven weaving yarn of fibers that constitute the base fabric is not less than 2.4 and not more than 3.5, or including single yarn fibers having a substantially triangular cross sectional shape and a modification degree of 1.3 to 2.2; having a tear strength of not less than 120 N; and having an air permeability under a pressure difference of 20 kPa of not more than 0.65 L/cm2/min.
    Type: Application
    Filed: April 1, 2016
    Publication date: March 29, 2018
    Inventors: Hirokazu Nishimura, Yusuke Kojyo, Ryuji Kamimura