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).

  • Patent number: 9556609
    Abstract: Provided is a high-performance sliding seismic isolation device with a slider that realizes a contact pressure of 60 MPa. The device includes an upper shoe 1 and a lower shoe (2) having sliding surfaces 1a and 2a with curvatures, respectively; and a columnar steel slider (7) disposed between the upper shoe (1) and the lower shoe (2), the slider having an upper surface 4a and a lower surface 4b that are in contact with the upper and lower shoes, respectively, and have curvatures. The upper surface 4a and the lower surface 4b of the slider (7) have double-woven fabric layers (5) and (6), respectively, each double-woven fabric layer containing PTFE fibers and fibers with higher tensile strength than that of the PTFE fibers, and the PTFE fibers being arranged on the sides of the sliding surfaces 1a and 2a of the upper shoe (1) and the lower shoe (2).
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: January 31, 2017
    Assignees: Nippon Steel & Sumikin Engineering Co., Ltd, Toray Industries, Inc.
    Inventors: Hideji Nakamura, Koji Nishimoto, Yuki Ninomiya, Hiroshi Tsuchikura, Koji Sugano
  • Publication number: 20170008262
    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: Application
    Filed: February 20, 2015
    Publication date: January 12, 2017
    Inventors: Keiichi Tonomori, Hiroshi Tsuchikura, Akihiro Tokuda
  • Publication number: 20170002484
    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: Application
    Filed: November 27, 2014
    Publication date: January 5, 2017
    Inventors: Hiroshi Tsuchikura, Satoshi Yamada, Masaki Fujita, Atsushi Kuwabara
  • Publication number: 20160354194
    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: Application
    Filed: February 12, 2015
    Publication date: December 8, 2016
    Inventors: Masaki Fujita, Koji Kadowaki, Yuka Sakaguchi, Kazuhiro Tanahashi, Hiroshi Tsuchikura, Satoshi Yamada
  • Publication number: 20160341244
    Abstract: A curved sliding unit has stable sliding performance and long service life. The curved sliding liner in a bowl shape obtained by rolling a ribbon-shaped woven cloth forms steps in the width direction of the ribbon. A curved sliding unit includes an external member, the curved sliding liner disposed inside the external member, and an internal member disposed inside the curved sliding liner.
    Type: Application
    Filed: January 27, 2015
    Publication date: November 24, 2016
    Inventors: Keiichi Tonomori, Hiroshi Tsuchikura, Akihiro Tokuda
  • Publication number: 20160320732
    Abstract: A low-friction sliding material includes a sliding member having a sliding surface, and a fluorine fiber or a fluorine fiber-containing composite fiber disposed in parallel at least on the outermost part of the sliding surface in a direction substantially the same as a sliding direction and covers 60% or more of the sliding surface. A low-friction sliding material is free from the occurrence of fabric separation or other defects in an extremely easy manner.
    Type: Application
    Filed: December 25, 2014
    Publication date: November 3, 2016
    Inventors: Keiichi Tonomori, Hiroshi Tsuchikura, Akihiro Tokuda
  • Publication number: 20160317272
    Abstract: A textile vascular prosthesis has reduced leakage of blood through the voids between the fibers. The vascular prosthesis with multi-layer tubular woven structure includes two types of yarns, the yarns being a microfiber multifilament yarn with a monofilament fineness of 0.5 dtex or less as a warp yarn that mainly forms an inner layer to be in contact with a blood flow and a multifilament yarn with a monofilament fineness of 1.0 dtex or more as a warp yarn that mainly forms an outer layer, the inner layer having an apparent cover factor of 2000 or more.
    Type: Application
    Filed: December 16, 2014
    Publication date: November 3, 2016
    Applicant: Toray Industries, Inc.
    Inventors: Hiroshi Tsuchikura, Satoshi Yamada, Atsushi Kuwabara, Akihiro Tokuda, Kazuhiro Tanahashi, Masaki Fujita, Koji Kadowaki
  • Publication number: 20160222555
    Abstract: A device is capable of reducing occurrence of cloth fell retreat at a selvage portion of a woven fabric and warp yarn looseness in a base cloth selvage portion when a high-density woven fabric is woven at a high speed. The selvage portion gripping device for a loom has a space where a selvage portion can pass in which the selvage portion formed by weaving additional yarns and weft yarns can pass through in a woven fabric forwarding direction, a small space where the weft yarn can move in which the weft yarn can move in the woven fabric forwarding direction, and a means to maintain a woven condition of the selvage portion even when the weft yarn is cut with a weft yarn cutter.
    Type: Application
    Filed: September 12, 2014
    Publication date: August 4, 2016
    Applicant: Toray Industries, Inc.
    Inventors: Nobuaki Tanaka, Hiroshi Tsuchikura, Koji Shimada
  • Publication number: 20160215495
    Abstract: Provided is a high-performance sliding seismic isolation device with a slider that realizes a contact pressure of 60 MPa. The device includes an upper shoe 1 and a lower shoe (2) having sliding surfaces 1a and 2a with curvatures, respectively; and a columnar steel slider (7) disposed between the upper shoe (1) and the lower shoe (2), the slider having an upper surface 4a and a lower surface 4b that are in contact with the upper and lower shoes, respectively, and have curvatures. The upper surface 4a and the lower surface 4b of the slider (7) have double-woven fabric layers (5) and (6), respectively, each double-woven fabric layer containing PTFE fibers and fibers with higher tensile strength than that of the PTFE fibers, and the PTFE fibers being arranged on the sides of the sliding surfaces 1a and 2a of the upper shoe (1) and the lower shoe (2).
    Type: Application
    Filed: July 10, 2014
    Publication date: July 28, 2016
    Applicants: NIPPON STEEL & SUMIKIN ENGINEERING CO., LTD., TORAY INDUSTRIES, INC.
    Inventors: Hideji Nakamura, Koji Nishimoto, Yuki Ninomiya, Hiroshi Tsuchikura, Koji Sugano
  • Publication number: 20160194788
    Abstract: An elastic monofilament includes a core-sheath composite structure, wherein a ratio of a core component is 2 to 40% by volume, the core component is a thermoplastic polyester having, in a polymer, 95 to 100% by mass of a thermoplastic polyester unit, and a sheath component is a copolymeric thermoplastic elastomer having a hard segment and a soft segment, and wherein the monofilament has a diameter of 0.1 to 1.0 mm, and a tensile strength of 0.3 to 3.0 cN/dtex.
    Type: Application
    Filed: August 7, 2014
    Publication date: July 7, 2016
    Inventors: Nobuaki Tanaka, Hiroshi Tsuchikura, Kota Nakamura, Hidetoshi Sakai, Takuya Ryomoto
  • Publication number: 20160160407
    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: Application
    Filed: July 10, 2014
    Publication date: June 9, 2016
    Inventors: Yuki Ninomiya, Hiroshi Tsuchikura, Koji Sugano
  • Patent number: 9334588
    Abstract: A three-dimension fabric by which a three-dimension fabric surface can be formed by supporting the fabric edges by a frame member and stretching the fabric, wherein the fabric per se, which constitutes the fabric surface, is provided with at least one heterogeneous portion that is different at least in yarn type and/or fabric structure type from the adjacent portion. Thus, the three-dimension fabric can be easily made into a construct of a desirable shape without using a frame having a complicated shape.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: May 10, 2016
    Assignee: Toray Industries, Inc.
    Inventors: Tatsuya Kosui, Hiroaki Date, Ryosuke Yamao, Hiroshi Tsuchikura
  • Patent number: 9315926
    Abstract: A stretch fabric in which one yarn of warp and weft yarns is obtained from an inelastic yarn having a crimp ratio of 5% to 30% and at least a portion of the other is obtained from an elastic yarn having a crimp ratio of 0% to 5%, and characterized in that the extension percentage in a load direction along the former yarn is 5% to 30% when weighted with a 340N/5 cm load in the load direction. The stretch fabric has excellent cushioning properties and fatigue resistance, and can be used as a material that saves space and combines holding properties with cushioning properties.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: April 19, 2016
    Assignees: Toray Industries, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroaki Date, Hiroshi Tsuchikura, Ryosuke Yamao, Shin Maezawa
  • Publication number: 20160067065
    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: Application
    Filed: April 10, 2014
    Publication date: March 10, 2016
    Inventors: Kazuhiro Tanahashi, Yuka Sakaguchi, Masaki Fujita, Koji Kadowaki, Hiroshi Tsuchikura, Satoshi Yamada
  • Publication number: 20160067066
    Abstract: An artificial blood vessel promotes intimal formation after indwelling, and is capable of maintaining antithrombogenicity during the intimal formation and maintaining its patency for a long time. The 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 10 nm to 3 ?m, wherein an antithrombin agent having a polymer chain other than heparin is covalently bound to the ultrafine fiber via the polymer chain, and the thrombin activity inhibition rate on the fiber surface at 37° C. is not less than 60%.
    Type: Application
    Filed: April 10, 2014
    Publication date: March 10, 2016
    Inventors: Kazuhiro Tanahashi, Yuka Sakaguchi, Masaki Fujita, Koji Kadowaki, Hiroshi Tsuchikura, Satoshi Yamada
  • Publication number: 20160058588
    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: Application
    Filed: April 23, 2014
    Publication date: March 3, 2016
    Inventors: Satoshi Yamada, Hiroshi Tsuchikura, Nobuaki Tanaka, Kazuhiro Tanahashi, Yuka Sakaguchi, Masaki Fujita, Koji Kadowaki
  • Publication number: 20150210240
    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: Application
    Filed: August 26, 2013
    Publication date: July 30, 2015
    Applicant: TORAY Industries, Inc.
    Inventors: Nobuaki Tanaka, Hiroshi Tsuchikura, Satoshi Yamada
  • Publication number: 20150111451
    Abstract: A stretch fabric in which one yarn of warp and weft yarns is obtained from an inelastic yarn having a crimp ratio of 5% to 30% and at least a portion of the other is obtained from an elastic yarn having a crimp ratio of 0% to 5%, and characterized in that the extension percentage in a load direction along the former yarn is 5% to 30% when weighted with a 340N/5 cm load in the load direction. The stretch fabric has excellent cushioning properties and fatigue resistance, and can be used as a material that saves space and combines holding properties with cushioning properties.
    Type: Application
    Filed: April 23, 2013
    Publication date: April 23, 2015
    Inventors: Hiroaki Date, Hiroshi Tsuchikura, Ryosuke Yamao, Shin Maezawa
  • Publication number: 20130273331
    Abstract: A three-dimension fabric by which a three-dimension fabric surface can be formed by supporting the fabric edges by a frame member and stretching the fabric, wherein the fabric per se, which constitutes the fabric surface, is provided with at least one heterogeneous portion that is different at least in yarn type and/or fabric structure type from the adjacent portion. Thus, the three-dimension fabric can be easily made into a construct of a desirable shape without using a frame having a complicated shape.
    Type: Application
    Filed: December 21, 2011
    Publication date: October 17, 2013
    Applicants: Toray Industries, Inc., Shima Seiki Mfg., Ltd.
    Inventors: Tatsuya Kosui, Hiroaki Date, Ryosuke Yamao, Hiroshi Tsuchikura
  • Publication number: 20130243985
    Abstract: A two- or more ply flat woven textile in which a texture A including a yarn A and a texture B including a yarn B are interwoven, wherein the yarn A and the yarn B are both a warp yarn or both a weft yarn, and shrinkage percentage of the yarn A (SA (%)) and shrinkage percentage of the yarn B (SB (%)) satisfies a specific range. The woven textile, when heat is applied, is spontaneously formed into a tube with a sufficient overlap in the circumferential direction. The tube provides easy insertion of lead wires and is able to protect the lead wires reliably without exposing the inserted lead wires.
    Type: Application
    Filed: November 22, 2011
    Publication date: September 19, 2013
    Applicant: Toray Industries, Inc.
    Inventors: Takahiro Furuta, Hiroshi Tsuchikura