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: 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
  • Patent number: 9987119
    Abstract: A double-weave vascular prosthesis includes an inner layer that contacts a flow of blood, and an outer layer in contact with the inner layer and having an inner layer-covering rate C (%) of 15%?C?75% defined by formula (1): C=[{(W1×D1+W2×D2)×25.4?W1×W2×D1 ×D2}/(25.4×25.4)]×100??(1), where D1 is a warp density (ends/25.4 mm) of the outer layer, D2 is a weft density (picks/25.4 mm) of the outer layer, W1 is an apparent width (mm) of a warp yarn of the outer layer, and W2 is an apparent width (mm) of a weft yarn of the outer layer, and the apparent width of each yarn is determined as a mean of measurement values for the widths of randomly selected five threads exposed on a surface of the woven structure.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: June 5, 2018
    Assignee: Toray Industries, Inc.
    Inventors: Hiroshi Tsuchikura, Satoshi Yamada, Takayuki Kaneko, Atsushi Kuwabara, Yuka Sakaguchi, Koji Kadowaki, Motoki Takaoka
  • Publication number: 20180147044
    Abstract: A multi-layer tubular woven construct is useful as a hose that transports a fluid or a powder or protects linear bodies such as wires, cables and conduits, as a tubular filter, or as a base material of a vascular prosthesis. In particular, a tubular woven construct in a tubular configuration woven by interlacing warp and weft yarns contains at least in part an elastic fiber yarn having a filament fineness of 1.0 dtex or more, the weft yarn containing at least in part a microfiber yarn having a filament fineness of less than 1.0 dtex.
    Type: Application
    Filed: May 19, 2016
    Publication date: May 31, 2018
    Inventors: Hiroshi Tsuchikura, Takayuki Kaneko, Satoshi Yamada, Kazuhiro Tanahashi, Koji Kadowaki, Atsushi Kuwabara
  • Patent number: 9962912
    Abstract: A composite sliding member includes a combination of a fiber woven fabric and a resin member, wherein the fiber woven fabric is a multilayer woven fabric having a front surface layer serving as a sliding surface and a rear surface layer adhered to the resin member, the front surface layer mainly including a fluororesin fiber and the rear surface layer mainly including a heat resistant fiber; wherein when a cross section of the composite sliding member crossing the fiber woven fabric, the resin member, and their composite interface is observed, one heat resistant fiber A of such heat resistant fiber at a position adjacent to the resin member with no intervening other fiber in the cross section is observed, and a ratio of a number of monofilaments in the heat resistant fiber A not in close contact with the resin constituting the resin member or adjacent monofilaments in relation to a number of all monofilaments constituting the heat resistant fiber A is R1, and R1 is 0 to 70%.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: May 8, 2018
    Assignee: Toray Industries, Inc.
    Inventors: Keiichi Tonomori, Hiroshi Tsuchikura, Akihiro Tokuda
  • Patent number: 9943424
    Abstract: An artificial blood vessel includes a tubular woven fabric composed of a multifilament yarn A including a first polyester and a multifilament yarn B including a second polyester, and has an inner diameter of 8 mm or less and a layer thickness of 50 ?m or more and 250 ?m or less, wherein the multifilament yarn A has a single fiber fineness of 1.0 dtex or more and a total fineness of 33 dtex or less, the multifilament yarn B has a single fiber fineness of 0.08 dtex or less and a total fineness of 66 dtex or less, and the multifilament yarn B forms loops on an inner wall surface of the tubular woven fabric.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: April 17, 2018
    Assignee: Toray Industries, Inc.
    Inventors: Satoshi Yamada, Hiroshi Tsuchikura, Nobuaki Tanaka, Kazuhiro Tanahashi, Yuka Sakaguchi, Masaki Fujita, Koji Kadowaki
  • Patent number: 9878684
    Abstract: The present invention addresses the problem of providing a cloth which, when used as an air bag main body cloth, does not undergo the damage caused by a high-temperature gas generated from an inflater, and therefore has high heat resistance and is suitable for an air bag. The means for solving the problem is a coated cloth for an air bag, which is produced by applying an elastomer resin layer on at least one surface of a three-dimensional woven fabric in an amount of 50 to 500 g/m2 per one surface, said coated cloth being characterized by having void spaces formed therein, wherein the void content in the coated cloth is 15 to 60%. Preferably, the coated cloth is used in applications in which the coated cloth is attached onto the periphery of an inflater connection opening in an air bag.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: January 30, 2018
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Nobuaki Tanaka, Hiroshi Tsuchikura, Satoshi Yamada
  • Publication number: 20170342376
    Abstract: A fiber structure can be used as a cell scaffold material, which fiber structure includes a multifilament formed by bundling monofilaments having an average fiber diameter of 1 to 15 ?m, wherein each of the monofilaments satisfies Formula (1): (Y/X)×100>50 . . . (1) wherein, in Formula (1), X represents the number of monofilaments for which the average crossing angle is investigated, and Y represents the number of monofilaments having an average crossing angle of not more than 25° in X.
    Type: Application
    Filed: October 30, 2015
    Publication date: November 30, 2017
    Inventors: Koji Kadowaki, Chisa Kuga, Masaki Fujita, Kazuhiro Tanahashi, Satoshi Yamada, Takayuki Kaneko, Hiroshi Tsuchikura
  • Publication number: 20170224466
    Abstract: A double-weave vascular prosthesis includes an inner layer that contacts a flow of blood, and an outer layer in contact with the inner layer and having an inner layer-covering rate C (%) of 15%?C?75% defined by formula (1): C=[{(W1×D1+W2×D2)×25.4?W1×W2×D1×D2}/(25.4×25.4)]×100 ??(1), where D1 is a warp density (ends/25.4 mm) of the outer layer, D2 is a weft density (picks/25.4 mm) of the outer layer, W1 is an apparent width (mm) of a warp yarn of the outer layer, and W2 is an apparent width (mm) of a weft yarn of the outer layer, and the apparent width of each yarn is determined as a mean of measurement values for the widths of randomly selected five threads exposed on a surface of the woven structure.
    Type: Application
    Filed: June 17, 2015
    Publication date: August 10, 2017
    Applicant: Toray Industries, Inc.
    Inventors: Hiroshi Tsuchikura, Satoshi Yamada, Takayuki Kaneko, Atsushi Kuwabara, Yuka Sakaguchi, Koji Kadowaki, Motoki Takaoka
  • Patent number: 9719197
    Abstract: A multi-layer tubular woven construct includes two or more layers including an innermost layer and layer A that is a layer other than the innermost layer, layer A including a monofilament yarn serving as a weft yarn, the weft yarn extending spirally and circumferentially around the tubular woven construct to form the weft, the weft including threads lying adjacent to each other, the adjacent weft threads of the monofilament yarn having intervals larger than the diameter of the monofilament yarn.
    Type: Grant
    Filed: November 27, 2014
    Date of Patent: August 1, 2017
    Assignee: Toray Industries, Inc.
    Inventors: Hiroshi Tsuchikura, Satoshi Yamada, Masaki Fujita, Atsushi Kuwabara
  • Patent number: 9662233
    Abstract: An artificial blood vessel is a tubular fabric including a fiber layer containing an ultrafine fiber(s) and an ultrafine fiber layer in the inside of the fiber layer, the ultrafine fiber layer being composed of an ultrafine fiber(s) having a fiber diameter(s) of not less than 10 nm and not more than 3 ?m, wherein a quaternary ammonium group-containing polymer having alkyl groups each of a carbon number 10 or less is covalently bound to the ultrafine fiber(s); heparin is ionically bound to the quaternary ammonium group-containing polymer; and the residual heparin activity after washing with physiological saline at 37° C. for 30 minutes is 20 mIU/cm2 or more.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: May 30, 2017
    Assignee: Toray Industries, Inc.
    Inventors: Kazuhiro Tanahashi, Yuka Sakaguchi, Masaki Fujita, Koji Kadowaki, Hiroshi Tsuchikura, Satoshi Yamada
  • Publication number: 20170035546
    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: Application
    Filed: November 26, 2014
    Publication date: February 9, 2017
    Inventors: Hiroshi Tsuchikura, Satoshi Yamada, Koji Kadowaki, Atsushi Kuwabara