Patents by Inventor Hiroshi Tsuchikura

Hiroshi Tsuchikura 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: 20210038364
    Abstract: There is provided a plain-weave fabric excellent in low air permeability and waterproofness. Further, there is provided a stent graft excellent in low water permeability mechanical properties and catheter storage capacity, including the plain-weave fabric as a graft substrate. A plain-weave fabric woven by interlacing weaving yarns in warp and weft, in which weaving yarns YA and YB arranged in the same direction have different crimp ratios A and B, respectively, a relationship thereof satisfies Formula 1, and the crimp ratio B is 4% or more, and the plain-weave fabric is preferably used for a stent graft; A?B×1.2.
    Type: Application
    Filed: January 15, 2019
    Publication date: February 11, 2021
    Applicant: Toray Industries, Inc.
    Inventors: Nobuaki Tanaka, Hiroshi Tsuchikura, So Kakiyama, Kazuhiro Tanahashi
  • Publication number: 20210010175
    Abstract: A nonwoven fabric that is fabricated is described, which includes a non-melting fiber A having a high-temperature shrinkage rate of 3% or less and a thermal conductivity conforming to ISO22007-3 (2008) of 0.060 W/m·K or less and a thermoplastic fiber B having a LOI value conforming to JIS K 7201-2 (2007) of 25 or more and having a density of more than 50 kg/m3 and less than 200 kg/m3, where the nonwoven fabric exhibits high flame-shielding performance and has a heat insulating property.
    Type: Application
    Filed: March 13, 2019
    Publication date: January 14, 2021
    Applicant: Toray Industries, Inc.
    Inventors: Masaru Harada, Hiroshi Tsuchikura
  • Publication number: 20210007838
    Abstract: A tubular woven fabric is useful as a transport hose for a fluid or a powder, as a protective hose for linear bodies such as wires, cables and conduits, as a tubular filter, or as a base material of a vascular prosthesis. The tubular woven fabric includes warp yarns and weft yarns interwoven with each other, the tubular woven fabric having an outer diameter with a variation of within 10% along the warp direction and satisfying the formula: (L2?L1)/L1?0.1.
    Type: Application
    Filed: September 29, 2017
    Publication date: January 14, 2021
    Inventors: Nobuaki Tanaka, Hiroshi Tsuchikura, Satoshi Yamada, Yuichi Koyamatsu, Taisuke Kogawa, Yuka Sakaguchi, Kazuhiro Tanahashi
  • Publication number: 20210001596
    Abstract: A nonwoven fabric sheet exhibiting high flame shielding performance, heat insulating property, and wear resistance is described, where the nonwoven fabric sheet is fabricated and includes at least one fire barrier layer formed of a web containing a non-melting fiber A having a high-temperature shrinkage rate of 3% or less and a thermal conductivity conforming to ISO22007-3 (2008) of 0.060 W/m·K or less and in which the fire barrier layer is coupled with a scrim layer containing a carbide-forming heat resistant fiber B having a LOI value conforming to JIS K 7201-2 (2007) of 25 or more.
    Type: Application
    Filed: March 13, 2019
    Publication date: January 7, 2021
    Applicant: Toray Industries, Inc.
    Inventors: Masaru Harada, Hiroshi Tsuchikura
  • Publication number: 20200392657
    Abstract: In order to provide a non-woven fabric with excellent flame retardancy and flame shielding performance, and even also with carding process-passing and durability, there is provided a non-woven fabric including: a non-melting fiber A that has a high-temperature shrinkage ratio of 3% or less; a thermoplastic fiber B that has an LOI value of 25 or more in accordance with JIS K 7201-2 (2007); and a thermoplastic fiber C that has an LOI value of less than 25 in accordance with JIS K 7201-2 (2007) and a crimp number of 8 (crimps/25 mm) or more in accordance with JIS L 1015 (2000).
    Type: Application
    Filed: February 20, 2019
    Publication date: December 17, 2020
    Applicant: Toray Industries, Inc.
    Inventors: Yao Chen, Masaru Harada, Hiroshi Tsuchikura
  • Publication number: 20200318261
    Abstract: It is an object to provide a woven fabric which can stably form a folding shape superior in shape retention and followability and which can be sewn while maintaining the folding structure, and also to provide a method for manufacturing the same. There is provided a woven fabric having pleats, wherein the height of the pleats is 2 to 10 times the average diameter of yarns arranged in the same direction as the pleats.
    Type: Application
    Filed: November 8, 2018
    Publication date: October 8, 2020
    Applicant: Toray Industries, Inc.
    Inventors: Satoshi Yamada, Nobuaki Tanaka, Hiroshi Tsuchikura
  • Publication number: 20200224341
    Abstract: A flame resistant woven fabric has a thickness of 0.08 mm or more in accordance with the method of JIS L 1096-A (2010) and including warps and wefts, the warp and the weft each comprising: a non-melting fiber A having a high-temperature shrinkage rate of 3% or less; and a thermoplastic fiber B having an LOI value of 25 or more in accordance with JIS K 7201-2 (2007) and having a melting point lower than the ignition temperature of the non-melting fiber A; wherein the warp and the weft each have a fracture elongation of 5% or more; and wherein, in the projection area of the weave repeat of the flame resistant woven fabric, the area ratio of the non-melting fiber A is 10% or more and the area ratio of the thermoplastic fiber B is 5% or more.
    Type: Application
    Filed: September 27, 2017
    Publication date: July 16, 2020
    Inventors: Masaru Harada, Hiroshi Tsuchikura
  • Publication number: 20200208351
    Abstract: In order to provide electrical insulating paper and an electrical insulating sheet including the same which exhibit excellent dielectric breakdown strength, excellent hygroscopic dimensional stability and thermal dimensional stability, and excellent tear strength and wear durability, a nonwoven fabric is fabricated wherein the fabric is a wet nonwoven fabric containing a meta-aramid fiber and a polyphenylene sulfide short fiber and a proportion of the polyphenylene sulfide short fiber at least partially fused in the wet nonwoven fabric is 40% or less, and the wet nonwoven fabric has a dielectric breakdown strength of 17 kV/mm or more.
    Type: Application
    Filed: June 5, 2018
    Publication date: July 2, 2020
    Applicant: Toray Industries, Inc.
    Inventors: Masaru Harada, Hiroshi Tsuchikura
  • Patent number: 10640886
    Abstract: A fiber-containing crystal includes a crystal body which is a crystal of a biological substance and a plurality of fibers at least partially incorporated in the crystal body; and a fiber-containing crystal includes a crystal body which is an easy-disintegrating crystal and a plurality of fibers at least partially incorporated in the crystal body.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: May 5, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Iori Nakabayashi, Hiroshi Tsuchikura, Atsushi Kuwabara, Hiroaki Adachi
  • Publication number: 20200022799
    Abstract: A tubular structure has succeeded in achieving excellent puncture resistance as well as maintenance of flexibility in a base by covering the base with a cover having excellent flexibility. The tubular structure includes a tubular base and a cover which covers the base, wherein the cover includes a copolymer containing a silicone monomer and a polymerizable monomer having a fluoroalkyl group(s) as monomer units.
    Type: Application
    Filed: March 30, 2018
    Publication date: January 23, 2020
    Inventors: Kyohei Yamashita, Koji Kadowaki, Kazuhiro Tanahashi, Nobuaki Tanaka, Satoshi Yamada, Hiroshi Tsuchikura
  • Publication number: 20190330769
    Abstract: Glossy fibers can be processed into woven or knitted fabric suitable for clothing applications while exhibiting a sense of deep, lustrous glossiness. The glossy fibers are characterized by having an average reflectance for the visible light region of 20% or greater, an average transmittance of 40% of less, and a contrastive glossiness of 3.0 or less.
    Type: Application
    Filed: November 14, 2017
    Publication date: October 31, 2019
    Inventors: Tomohiko Matsuura, Masato Masuda, Hiroshi Tsuchikura, Shinya Nakamichi
  • Publication number: 20190242037
    Abstract: A sliding fabric exhibits a small amount of compression in the thickness direction under load application, does not cause generation of play between members, and is superior in sliding properties and durability. The sliding fabric is configured such that fluororesin fibers (X) and other fibers (Y) are alternately arranged as warps and/or wefts on at least one side of the fabric and the amount of compression of the fabric is 25 ?m or less.
    Type: Application
    Filed: October 2, 2017
    Publication date: August 8, 2019
    Inventors: Zhidan Cao, Keiichi Tonomori, Hiroshi Tsuchikura
  • Publication number: 20190233988
    Abstract: A flame resistant knit fabric having a thickness of 0.08 mm or more in accordance with the method of JIS L 1096-A (2010) and consisting of a yarn, the yarn including: a non-melting fiber A having a high-temperature shrinkage rate of 3% or less; and a thermoplastic fiber B having an LOI value of 25 or more in accordance with JIS K 7201-2 (2007) and having a melting point lower than the ignition temperature of the non-melting fiber A; wherein the yarn has a fracture elongation of 5% or more; and wherein, in the projection area of the knit repeat of the flame resistant knit fabric, the area ratio of the non-melting fiber A is 10% or more and the area ratio of the thermoplastic fiber B is 5% or more. A flame resistant knit fabric having high flame resistance is provided.
    Type: Application
    Filed: September 27, 2017
    Publication date: August 1, 2019
    Inventors: Masaru Harada, Hiroshi Tsuchikura
  • Patent number: 10358750
    Abstract: A wear-resistant cloth has high wear resistance and is capable of exerting a long-term sliding property even under high-load environment as compared with conventional cloths. A wear-resistant multilayer fabric includes a sliding fabric and a base fabric. The sliding fabric includes polytetrafluoroethylene fibers A, the base fabric includes fibers B having creep ratio in a standard state and under 20% load of breaking strength, the creep ratio being lower than creep ratio of the polytetrafluoroethylene fibers, and the sliding fabric and the base fabric have mutual warps and/or wefts that are mutually entangled for bonding.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: July 23, 2019
    Assignee: Toray Industries, Inc.
    Inventors: Yuki Ninomiya, Hiroshi Tsuchikura, Koji Sugano
  • Publication number: 20190177877
    Abstract: A fiber-containing crystal includes a crystal body which is a crystal of a biological substance and a plurality of fibers at least partially incorporated in the crystal body; and a fiber-containing crystal includes a crystal body which is an easy-disintegrating crystal and a plurality of fibers at least partially incorporated in the crystal body.
    Type: Application
    Filed: September 28, 2016
    Publication date: June 13, 2019
    Inventors: Iori Nakabayashi, Hiroshi Tsuchikura, Atsushi Kuwabara, Hiroaki Adachi
  • Patent number: 10251742
    Abstract: An artificial blood vessel is composed of a cylindrical multiple-woven fabric structure allowing only a small amount of blood leakage and can achieve both antithrombogenicity and cellular affinity. The artificial blood vessel includes a cylindrical fabric structure in which a cylindrical fabric whose inside contacts blood is arranged, wherein the cylindrical fabric is a fabric prepared by interlacing a plurality of warp yarns and a plurality of weft yarns with each other into a cylindrical shape; the warp yarns and the weft yarns constituting the cylindrical fabric include a multifilament yarn having a single yarn fineness of not more than 0.50 dtex, and are bound to an antithrombogenic material; the antithrombogenic material forms an antithrombogenic material layer having a thickness of 1 to 600 nm inside the cylindrical fabric; and the water permeability under conditions where a pressure of 16 kPa is applied to the inner surface is less than 300 mL/cm2/min.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: April 9, 2019
    Assignee: Toray Industries, Inc.
    Inventors: Masaki Fujita, Koji Kadowaki, Yuka Sakaguchi, Kazuhiro Tanahashi, Hiroshi Tsuchikura, Satoshi Yamada
  • Publication number: 20180368524
    Abstract: An object of the present invention is to provide a shoe having excellent comfort. The present invention provides a shoe including an upper material that is partially or fully formed of a fiber sheet, wherein the fiber sheet exhibits specific tensile characteristics at least in one direction.
    Type: Application
    Filed: December 27, 2016
    Publication date: December 27, 2018
    Inventors: Norihiko Taniguchi, Kenta Moriyasu, Emi Katayama, Yuto Shimizu, Satoshi Naruko, Hiroshi Tsuchikura
  • Publication number: 20180363171
    Abstract: A woven fabric hardly causes yarn slippage due to friction, is excellent in abrasion resistance, has a smooth surface, and is excellent in touch feeling. The woven fabric includes a warp and a weft, at least one of the warp and the weft being at least partially a fiber (M) that is a monofilament 1, a fiber (N) crossing the fiber (M) being at least partially a multifilament 2.
    Type: Application
    Filed: December 2, 2016
    Publication date: December 20, 2018
    Applicant: Toray Industries ,Inc.
    Inventors: Satoshi NARUKO, Hiroshi TSUCHIKURA, Ryosuke YAMAO
  • Patent number: 10070949
    Abstract: A vascular prosthesis with tubular woven structure, the prosthesis includes an inner layer adapted to contact a blood flow, the inner layer being formed of warp and weft yarns and having a cover factor of 1800 or more, each of a warp and weft yarns including a microfiber multifilament yarn with a monofilament fineness of 0.50 dtex or less, the multifilament yarn including microfiber monofilaments having an average intersecting angle S of the monofilaments of less than 25°.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: September 11, 2018
    Assignee: Toray Industries, Inc.
    Inventors: Hiroshi Tsuchikura, Satoshi Yamada, Koji Kadowaki, Atsushi Kuwabara
  • Publication number: 20180187351
    Abstract: A flame-blocking nonwoven fabric has excellent processability and high flame-blocking properties. The flame-blocking nonwoven fabric has a density of 200 kg/m3 or more and includes non-melting fibers A whose high-temperature shrinkage rate is 3% or less and whose Young's modulus multiplied by the cross-sectional area of the fibers is 2.0 N or less, and thermoplastic fibers B whose LOI value is 25 or more as determined according to JIS K 7201-2 (2007).
    Type: Application
    Filed: June 28, 2016
    Publication date: July 5, 2018
    Applicant: Toray Industries, Inc.
    Inventors: Hiroshi Tsuchikura, Keiichi Tonomori