Patents by Inventor Ryuta Kamiya

Ryuta Kamiya 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: 10767022
    Abstract: This fiber wound body has a plurality of reinforcing fiber yarns wound around a winding axis, each of the reinforcing fiber yarns having a thickness gradient portion in which the fiber content is uniform along the longitudinal direction of the yarn and the thickness gradually changes.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: September 8, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Ryohei Tsuji, Genki Yoshikawa, Shun Kuno, Ryuta Kamiya
  • Publication number: 20200216987
    Abstract: A fiber structure includes a first corner section, which is a boundary section between a first structural portion and a second structural portion, a second corner section, which is a boundary section between the first structural portion and a third structural portion, and a third corner section, which is a boundary section between the second structural portion and the third structural portion. A first yarn that extends continuously in the first structural portion and the second structural portion is bent at the first corner section. A second yarn that extends continuously in the first structural portion and the third structural portion is bent at the second corner section. At least one of the first yarn and the second yarn, which extend continuously in the second structural portion and third structural portion, is bent at the third corner section.
    Type: Application
    Filed: June 28, 2018
    Publication date: July 9, 2020
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Aya MAKI, Ryuta KAMIYA
  • Patent number: 10697094
    Abstract: A fiber structure includes a first fiber layer including first reinforcement fiber bundles extending in a first yarn main axis direction, a second fiber layer including second reinforcement fiber bundles extending in a second yarn main axis direction that is orthogonal to the first yarn main axis direction, and auxiliary yarns that join the first fiber layer with the second fiber layer in a stacking direction of the first fiber layer and the second fiber layer. At least either one of the first reinforcement fiber bundles and the second reinforcement fiber bundles each include a core yarn and a covering yarn spirally wound around the core yarn. A covering angle, which is an orientation angle of the covering yarn, corresponds to a direction that differs from the first yarn main axis direction and the second yarn main axis direction.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: June 30, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventor: Ryuta Kamiya
  • Publication number: 20200086605
    Abstract: A textile laminate is twisted around a torsion axis extending in a straight line in a longitudinal direction of the textile laminate. Further, the warps of second to fourth fiber layers, which constitute the textile laminate, are oriented to intersect with the torsion axis. The textile laminate is provided with a pair of side edge sections positioned at opposite ends of the torsion axis in the axial direction, and a torsional edge section that connects the side edge sections to each other. The warps of the unidirectional textile intersecting with the torsion axis as viewed from the direction orthogonal to the torsion axis extend in straight lines from the torsion axis toward the torsional edge sections.
    Type: Application
    Filed: July 14, 2016
    Publication date: March 19, 2020
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Fujio HORI, Ryuta KAMIYA
  • Publication number: 20200072415
    Abstract: A fiber structure that includes a liner, and a fiber reinforcement base material formed of a fabric. The fiber reinforcement base material externally covers a body portion and a dome-shaped portion of the liner, and includes first yarns and second yarns. The first yarns are arranged such that a direction in which a yarn main axis of each of the first yarns in the body portion and the dome-shaped portion proceeds is a circumferential direction of the liner. The second yarns are arranged such that a direction in which a yarn main axis of each of the second yarns in the body portion proceeds is an axial direction of the body portion and that a direction in which a yarn main axis of a portion of each of the second yarns arranged in the dome-shaped portion proceeds is an axial direction of the dome-shaped portion.
    Type: Application
    Filed: April 5, 2018
    Publication date: March 5, 2020
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Ryuta KAMIYA, Hiroyuki SUZUKI
  • Patent number: 10544525
    Abstract: A fibrous structure includes a main plate and a sub-plate. The main plate, which is formed by a multi-layer textile, includes a plurality of stacked fiber layers. Each fiber layer includes main plate warps and main plate wefts. The sub-plate, which is formed by a multi-layer textile, includes a plurality of stacked fiber layers. Each fiber layer includes sub-plate warps and sub-plate wefts. The main plate and the sub-plate are integrally woven with each other in a state intersecting each other. The main plate wefts and the sub-plate wefts have a smaller volume density at an intersecting portion where the main plate and the sub-plate intersect than a portion separate from the intersecting portion.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: January 28, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventor: Ryuta Kamiya
  • Patent number: 10479871
    Abstract: A fiber structure for a fiber-reinforced composite material includes a section in which a width varies continuously along a central axis in a plan view. In a section in which the width increases continuously along the central axis, discontinuous fibers are aligned radially along the central axis, and both a thickness of the fiber structure and a density of the discontinuous fibers are uniform.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: November 19, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Genki Yoshikawa, Ryuta Kamiya
  • Publication number: 20190323574
    Abstract: A fiber-reinforced resin load energy-absorber has: a multi-layer woven fabric or laminated woven fabric as a reinforcement base material; a resin as a matrix; slits; binding threads; and reinforcing members. The reinforcement base material has corners formed by bending said reinforcement base material. Slits are provided at least in the portions of the reinforcement base material that form the corners. The binding threads bind each of the woven fabric layers in the multi-layer woven fabric or laminated woven fabric. The binding threads are configured so as to bind each of the woven fabric layers when the multi-layer woven fabric or laminated woven fabric is divided in the thickness direction into at least two woven fabric layers. The reinforcing members are held inside the slits.
    Type: Application
    Filed: June 13, 2017
    Publication date: October 24, 2019
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Hiroyuki SUZUKI, Ryuta KAMIYA, Ryohei TSUJI
  • Publication number: 20190300668
    Abstract: This fiber wound body has a plurality of reinforcing fiber yarns wound around a winding axis, each of the reinforcing fiber yarns having a thickness gradient portion in which the fiber content is uniform along the longitudinal direction of the yarn and the thickness gradually changes.
    Type: Application
    Filed: June 21, 2017
    Publication date: October 3, 2019
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Ryohei TSUJI, Genki YOSHIKAWA, Shun KUNO, Ryuta KAMIYA
  • Patent number: 10357937
    Abstract: A fiber laminate W is configured by laminating first to fourth fiber layers. The fiber laminate is provided with a taper section, in which the thickness changes depending on the position in the longitudinal direction. The first to fourth fiber layers are formed by discontinuous fibers and are configured with the orientation angles of the discontinuous fibers aligned in one direction. The orientation angles of the discontinuous fibers in the first to fourth fiber layers are different. In addition, the first to fourth fiber layers are provided with thickness changing sections, in which the thickness changes continuously while the density of fibers is kept constant irrespective of the position in the longitudinal direction. The taper section is configured by stacking the thickness changing sections. The change amount of the thickness of each thickness changing section is the same irrespective of the position in the longitudinal direction.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: July 23, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Genki Yoshikawa, Ryuta Kamiya
  • Patent number: 10208826
    Abstract: An impact absorber absorbs impact energy when receiving an impact load. The impact absorber includes a fibrous structure. The fibrous structure includes a tube of which a center axis extends in a direction in which the impact load is applied and a rib that connects opposing inner surfaces of the tube. The fibrous structure is impregnated with a matrix resin. The direction in which the impact load is applied is referred to as an X direction, and a direction in which the rib connects the opposing inner surfaces of the tube is referred to as a Y direction. The tube includes a fiber layer including load direction yarns extending in the X direction and intersecting direction yarns intersecting the load direction yarns. The rib includes yarns extending only in a direction orthogonal to the X direction.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: February 19, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventor: Ryuta Kamiya
  • Publication number: 20180371651
    Abstract: A fabric laminate used as a reinforcing base material of a fiber-reinforced composite is constituted by laminating fabrics having warp yarns and weft yarns. Each warp yarn has a diameter-changing portion, in which the diameter of the yarn gradually changes in the yarn longitudinal direction in the vicinity of one end in the yarn longitudinal direction of the warp yarn.
    Type: Application
    Filed: December 8, 2016
    Publication date: December 27, 2018
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Genki YOSHIKAWA, Ryuta KAMIYA, Shun KUNO
  • Publication number: 20180355128
    Abstract: A fiber structure for a fiber-reinforced composite material includes a section in which a width varies continuously along a central axis in a plan view. In a section in which the width increases continuously along the central axis, discontinuous fibers are aligned radially along the central axis, and both a thickness of the fiber structure and a density of the discontinuous fibers are uniform.
    Type: Application
    Filed: September 14, 2016
    Publication date: December 13, 2018
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Genki YOSHIKAWA, Ryuta KAMIYA
  • Publication number: 20180320296
    Abstract: A multilayer fabric includes a binding portion in which weft fiber layers stacked in a thickness-wise direction are all bound by warps and a non-binding portion including a slit where a fifth fiber layer and a seventh fiber layer, which are the weft fiber layers, are not bound by warps. The multilayer fabric includes an intersection formed at a boundary of the binding portion and the non-binding portion. The intersection is formed by intersecting the warps that are adjacent in a second direction.
    Type: Application
    Filed: September 30, 2016
    Publication date: November 8, 2018
    Applicant: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Hiroyuki TAKEI, Ryuta KAMIYA
  • Publication number: 20180313005
    Abstract: A fiber structure includes a first laminate and a second laminate, which are arranged such that the yarn main axes of first reinforcement fiber yarns and second reinforcement fiber yarns are caused to be orthogonal to each other and that the main yarn axes of first auxiliary yarns and second auxiliary yarns are caused to be orthogonal to each other. The engagement of first intermediate structure yarns of the first laminate and second intermediate structure yarns of the second laminate joins the first laminate and the second laminate together in the lamination direction.
    Type: Application
    Filed: October 27, 2016
    Publication date: November 1, 2018
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Mari KAWAHARA, Ryuta KAMIYA
  • Publication number: 20180251918
    Abstract: A fiber structure includes a first fiber layer including first reinforcement fiber bundles extending in a first yarn main axis direction, a second fiber layer including second reinforcement fiber bundles extending in a second yarn main axis direction that is orthogonal to the first yarn main axis direction, and auxiliary yarns that join the first fiber layer with the second fiber layer in a stacking direction of the first fiber layer and the second fiber layer. At least either one of the first reinforcement fiber bundles and the second reinforcement fiber bundles each include a core yarn and a covering yarn spirally wound around the core yarn. A covering angle, which is an orientation angle of the covering yarn, corresponds to a direction that differs from the first yarn main axis direction and the second yarn main axis direction.
    Type: Application
    Filed: August 16, 2016
    Publication date: September 6, 2018
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventor: Ryuta KAMIYA
  • Publication number: 20180194098
    Abstract: A fiber laminate W is configured by laminating first to fourth fiber layers. The fiber laminate is provided with a taper section, in which the thickness changes depending on the position in the longitudinal direction. The first to fourth fiber layers are formed by discontinuous fibers and are configured with the orientation angles of the discontinuous fibers aligned in one direction. The orientation angles of the discontinuous fibers in the first to fourth fiber layers are different. In addition, the first to fourth fiber layers are provided with thickness changing sections, in which the thickness changes continuously while the density of fibers is kept constant irrespective of the position in the longitudinal direction. The taper section is configured by stacking the thickness changing sections. The change amount of the thickness of each thickness changing section is the same irrespective of the position in the longitudinal direction.
    Type: Application
    Filed: June 20, 2016
    Publication date: July 12, 2018
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Genki YOSHIKAWA, Ryuta KAMIYA
  • Patent number: 9840062
    Abstract: A fiber-reinforced composite material has a fabric base material including laminated obliquely-crossed fabric layers, each of which is configured by weaving first and second reinforced fiber bundles, which obliquely cross each other. In adjacent two of the fabric layers, one of an orientation of the first reinforced fiber bundles and an orientation of the second reinforced fiber bundles in one fabric layer is the same as one of an orientation of the first reinforced fiber bundles and an orientation of the second reinforced fiber bundles of the other fabric layer. A single-orientation layer is placed between the adjacent fabric layers such that an orientation of fiber bundles of the single-orientation layer is the same as an orientation of reinforced fiber bundles having the same orientation as each other in the adjacent fabric layers.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: December 12, 2017
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventor: Ryuta Kamiya
  • Publication number: 20170328435
    Abstract: An impact absorber absorbs impact energy when receiving an impact load. The impact absorber includes a fibrous structure. The fibrous structure includes a tube of which a center axis extends in a direction in which the impact load is applied and a rib that connects opposing inner surfaces of the tube. The fibrous structure is impregnated with a matrix resin. The direction in which the impact load is applied is referred to as an X direction, and a direction in which the rib connects the opposing inner surfaces of the tube is referred to as a Y direction. The tube includes a fiber layer including load direction yarns extending in the X direction and intersecting direction yarns intersecting the load direction yarns. The rib includes yarns extending only in a direction orthogonal to the X direction.
    Type: Application
    Filed: November 20, 2015
    Publication date: November 16, 2017
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventor: Ryuta KAMIYA
  • Publication number: 20170268137
    Abstract: A fibrous structure includes a main plate and a sub-plate. The main plate, which is formed by a multi-layer textile, includes a plurality of stacked fiber layers. Each fiber layer includes main plate warps and main plate wefts. The sub-plate, which is formed by a multi-layer textile, includes a plurality of stacked fiber layers. Each fiber layer includes sub-plate warps and sub-plate wefts. The main plate and the sub-plate are integrally woven with each other in a state intersecting each other. The main plate wefts and the sub-plate wefts have a smaller volume density at an intersecting portion where the main plate and the sub-plate intersect than a portion separate from the intersecting portion.
    Type: Application
    Filed: November 5, 2015
    Publication date: September 21, 2017
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventor: Ryuta KAMIYA