Patents by Inventor Ayumu Ikemoto
Ayumu Ikemoto 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).
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Patent number: 8865280Abstract: A fuel hose according to an aspect of the present disclosure includes: a tubular inner rubber layer; a resin layer formed on an outer circumferential surface of the inner rubber layer; and an outer rubber layer formed on an outer circumferential surface of the resin layer, wherein the inner rubber layer includes a rubber material containing the following Components (A), (B) and (C), the outer rubber layer includes a rubber material containing the following Components (A?), (B) and (C?), and the resin layer includes a resin material containing the following Component (X) as a main component: (A) acrylonitrile-butadiene rubber, (A?) blend rubber containing acrylonitrile-butadiene rubber and acrylic rubber, (B) a sulfur vulcanizing agent, (C) an amine catalyst to form bonding points, (C?) an amine catalyst to form bonding points, which contains 1,5-diazabicyclo(4.3.0)non-5-ene salt (DBN salt), and (X) tetrafluoroethylene-perfluoro(alkylvinylether)-chlorotrifluoroethylene copolymer.Type: GrantFiled: April 24, 2012Date of Patent: October 21, 2014Assignee: Tokai Rubber Industries, Ltd.Inventors: Daigo Tamura, Ayumu Ikemoto, Masashi Noda, Yoshiki Kodaka
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Publication number: 20120199238Abstract: A fuel hose according to an aspect of the present disclosure includes: a tubular inner rubber layer; a resin layer formed on an outer circumferential surface of the inner rubber layer; and an outer rubber layer formed on an outer circumferential surface of the resin layer, wherein the inner rubber layer includes a rubber material containing the following Components (A), (B) and (C), the outer rubber layer includes a rubber material containing the following Components (A?), (B) and (C?), and the resin layer includes a resin material containing the following Component (X) as a main component: (A) acrylonitrile-butadiene rubber, (A?) blend rubber containing acrylonitrile-butadiene rubber and acrylic rubber, (B) a sulfur vulcanizing agent, (C) an amine catalyst to form bonding points, (C?) an amine catalyst to form bonding points, which contains 1,5-diazabicyclo(4.3.0)non-5-ene salt (DBN salt), and (X) tetrafluoroethylene-perfluoro(alkylvinylether)-chlorotrifluoroethylene copolymer.Type: ApplicationFiled: April 24, 2012Publication date: August 9, 2012Applicant: TOKAI RUBBER INDUSTRIES, LTD.Inventors: Daigo Tamura, Ayumu Ikemoto, Masashi Noda, Yoshiki Kodaka
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Patent number: 7849887Abstract: A refrigerant transportation hose having excellent flexibility and high resistance to permeation of refrigerant. The refrigerant transportation hose includes an innermost layer formed by using polyamide resin, a low-permeation layer formed on an outer peripheral surface of the innermost layer and rubber layers (of an inner rubber layer and an outer rubber layer) formed on an outer peripheral surface of the low-permeation layer, wherein the low-permeation layer is a resin film in thickness of 5 to 100 ?m made of polyvinyl alcohol having a degree of saponification of not less than 90%.Type: GrantFiled: May 31, 2007Date of Patent: December 14, 2010Assignee: Tokai Rubber Industries, Ltd.Inventors: Yuji Takagi, Ayumu Ikemoto
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Patent number: 7517563Abstract: A hose of impermeability has a wall corrugated along at least a part of its length, and formed by an inner thin resin layer, a laminated layer including a metal film, or a layer formed by a metal film, and an outer thin resin layer. It has a very high fluid impermeability owing to its wall layer including or formed by a metal film, and is also very flexible, capable of absorbing vibration, light in weight and strong. A tubular inner thin resin layer is formed by extrusion as the innermost layer of a multi-layered hose wall, and a laminated tape including a metal film, or simply a metal film is spirally wound or longitudinally lapped about the inner resin layer. An outer thin resin layer is formed about a layer formed by the laminated tape, or metal film, and the whole is at least partly corrugated. Alternatively, corrugation is done before an outer thin resin layer is formed by electrostatic powder coating.Type: GrantFiled: August 2, 2005Date of Patent: April 14, 2009Assignee: Tokai Rubber Industries, Ltd.Inventors: Motoshige Hibino, Kazutaka Katayama, Ayumu Ikemoto, Hidehito Ikeda, Hiroaki Ito
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Publication number: 20080302467Abstract: A pressure resistant vibration absorbing hose has a hose body including an inner surface rubber layer, a reinforcing layer and an outer surface rubber layer and a joint fitting including a rigid insert pipe and a socket fitting. The joint fitting is attached to a swaged portion of an axial end portion of the hose body by securely swaging the socket fitting thereto. The inner surface rubber layer is formed by molding such that a swaged portion thereof is larger than a main portion thereof in diameter and a wall thickness of the swaged portion is equal to or larger than a wall thickness of the main portion, and after that, the reinforcing layer and the outer surface rubber layer are laminated to construct the hose body.Type: ApplicationFiled: July 11, 2008Publication date: December 11, 2008Applicants: Denso Corporation, Tokai Rubber Industries, Ltd.Inventors: Hajime Mukawa, Keiichi Kitamura, Tetsuya Arima, Norihiko Furuta, Ayumu Ikemoto
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Publication number: 20080087350Abstract: A refrigerant-transporting hose includes a low-permeability layer and a rubber outer layer disposed on the outer peripheral surface of the low-permeability layer. The low-permeability layer is formed from a resin film made of a polyvinyl alcohol with a saponification degree of 90% or more. The resin film has a thickness of 5 to 100?.Type: ApplicationFiled: October 12, 2007Publication date: April 17, 2008Applicant: TOKAI RUBBER INDUSTRIES, LTD.Inventors: Yuji Takagi, Ayumu Ikemoto
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Patent number: 7312270Abstract: A hose material for a fuel cell which is superior in both of low extraction property and electrical isolation, and which also has excellent mechanical properties, and also a hose manufactured using the hose material. The hose material comprises: (A) an ethylene-propylene copolymer; (B) hydrophobic silica; (C) a peroxide crosslinking agent; and (D) carbon black.Type: GrantFiled: July 27, 2004Date of Patent: December 25, 2007Assignee: Tokai Rubber Industries, Ltd.Inventors: Ryo Hirai, Ayumu Ikemoto
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Publication number: 20070277896Abstract: A refrigerant transportation hose having excellent flexibility and high resistance to permeation of refrigerant. The refrigerant transportation hose includes an innermost layer formed by using polyamide resin, a low-permeation layer formed on an outer peripheral surface of the innermost layer and rubber layers (of an inner rubber layer and an outer rubber layer) formed on an outer peripheral surface of the low-permeation layer, wherein the low-permeation layer is a resin film in thickness of 5 to 10 ?m made of polyvinyl alcohol having a degree of saponification of not less than 90%.Type: ApplicationFiled: May 31, 2007Publication date: December 6, 2007Applicant: TOKAI RUBBER INDUSTRIES, LTD.Inventors: Yuji Takagi, Ayumu Ikemoto
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Publication number: 20060220379Abstract: A high-pressure resistant vibration absorbing hose includes an inner surface rubber layer, a reinforcing layer formed by braiding a reinforcing yarn in an outer side thereof at a high braiding density equal to or more than 50%, and an outer surface rubber layer, and has a joint metal fitting to an axial end portion, the caulked portion is formed in an expanded shape, and a braiding angle of the reinforcing yarn is set to 55 degree±2 degree in both of a caulked portion and a main portion.Type: ApplicationFiled: March 28, 2006Publication date: October 5, 2006Inventors: Tetsuyo Arima, Tomohide Ito, Norihiko Furuta, Koichi Wakita, Ayumu Ikemoto
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Patent number: 7059354Abstract: A refrigerant transportation hose having excellent processability and durability, as well as high resistance to gas permeation (gas barrier properties) and adequate flexibility. The refrigerant transportation hose containing a tubular rubber layer in which refrigerant is circulated, the tubular rubber layer is formed by a material consisting essentially of components (A) to (C): (A) at least one rubber of butyl rubber and halogenated butyl rubber; (B) polybutene; and (C) a white filler.Type: GrantFiled: July 14, 2005Date of Patent: June 13, 2006Assignee: Tokai Rubber Industries, Ltd.Inventors: Ayumu Ikemoto, Tetsuya Arima
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Publication number: 20060118195Abstract: A high-pressure resistant vibration absorbing hose has a hose body and a joint fitting. The joint fitting is attached to a swaged portion of the hose body. The hose body has an inner surface layer, a reinforcing layer, and an outer surface layer. The swaged portion is made to have an enlarged diameter relative to a main portion of the hose body in a state before the joint fitting is securely swaged thereto. The reinforcing layer has a braid or winding angle of a reinforcing wire member in a range of 53° to 57° at the main portion, and in a range of above 53° to 62° at the swaged portion.Type: ApplicationFiled: September 26, 2005Publication date: June 8, 2006Inventors: Tetsuya Arima, Norihiko Furuta, Tomohide Ito, Ayumu Ikemoto
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Patent number: 7055552Abstract: A rubber hose material for providing a rubber hose excellent in mechanical strength and with an intrinsic property (elongation) of rubber retained. The rubber hose material is formed by blending an ethylene-olefin resin (component (B)) as an organic filler into an ethylene-propylene rubber (component (A)).Type: GrantFiled: September 30, 2004Date of Patent: June 6, 2006Assignee: Tokai Rubber Industries, Ltd.Inventors: Ryo Hirai, Ayumu Ikemoto, Hidehito Ikeda, Yoshio Okado
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Publication number: 20060042711Abstract: A composite hose with a corrugated metal tube has a corrugated metal tube as a barrier layer against permeation of conveyed fluid, an elastic filler that penetrates in each valley gap on an outer peripheral side of the corrugated metal tube, between corrugation hills of the corrugated metal tube, and a reinforcing layer on an outer peripheral side of the elastic filler. The elastic filler to be adapted has a storage modulus in a range of 5×108 MPa to 5×109 MPa under temperature conditions ranging from ?30° C. to 150° C.Type: ApplicationFiled: August 29, 2005Publication date: March 2, 2006Inventors: Motoshige Hibino, Ayumu Ikemoto
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Patent number: 7004201Abstract: A vibration absorbing hose has a corrugated portion extending substantially entire part of the hose and end portions of straight cylindrical shape. The vibration absorbing hose has multi-layered construction of tubular inner rubber layer, pressure resistant reinforcement layer circumscribing an outer side of the inner rubber layer and outer rubber layer as outermost cover layer. The pressure resistant reinforcement layer is formed, for example, by braiding reinforcing yarns, so as to have corrugations along the corrugated portion of the inner rubber layer.Type: GrantFiled: June 7, 2004Date of Patent: February 28, 2006Assignee: Tokai Rubber Industries, Ltd.Inventors: Tetsuya Arima, Norihiko Furuta, Ayumu Ikemoto
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Publication number: 20060011250Abstract: A refrigerant transportation hose having excellent processability and durability, as well as high resistance to gas permeation (gas barrier properties) and adequate flexibility. The refrigerant transportation hose containing a tubular rubber layer in which refrigerant is circulated, the tubular rubber layer is formed by a material consisting essentially of components (A) to (C): (A) at least one rubber of butyl rubber and halogenated butyl rubber; (B) polybutene; and (C) a white filler.Type: ApplicationFiled: July 14, 2005Publication date: January 19, 2006Applicant: TOKAI RUBBER INDUSTRIES, LTD.Inventors: Ayumu Ikemoto, Tetsuya Arima
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Publication number: 20060011249Abstract: A high pressure resistant vibration absorbing hose with a bursting pressure of 5 MPa or higher has a hose body and a joint fitting. The joint fitting is to be attached to a swaged portion of the hose body. The hose body has an inner surface rubber layer, a reinforcing layer of high braid or winding density of 50% or more, and an outer surface rubber layer. The swaged portion is designed to have a larger diameter than the main portion of the hose body and the inner surface rubber layer has a wall thickness equal to or larger than 1.0 mm at a swaged portion in a state before the joint fitting is securely swaged thereto. The reinforcing layer has a braid or winding angle ? of a reinforcing wire member equal to or lower than a neutral angle 54.7° and higher than 48°.Type: ApplicationFiled: July 13, 2005Publication date: January 19, 2006Inventors: Tetsuya Arima, Norihiko Furuta, Ayumu Ikemoto
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Publication number: 20060006645Abstract: A pressure resistant vibration absorbing hose has a hose body including an inner surface rubber layer, a reinforcing layer and an outer surface rubber layer and a joint fitting including a rigid insert pipe and a socket fitting. The joint fitting is attached to a swaged portion of an axial end portion of the hose body by securely swaging the socket fitting thereto. The inner surface rubber layer is formed by molding such that a swaged portion thereof is larger than a main portion thereof in diameter and a wall thickness of the swaged portion is equal to or larger than a wall thickness of the main portion, and after that, the reinforcing layer and the outer surface rubber layer are laminated to construct the hose body.Type: ApplicationFiled: July 6, 2005Publication date: January 12, 2006Inventors: Hajime Mukawa, Keiichi Kitamura, Tetsuya Arima, Norihiko Furuta, Ayumu Ikemoto
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Patent number: 6983769Abstract: A vibration absorbing hose including a corrugated portion has multi-layered construction of tubular inner rubber layer, pressure resistant reinforcement layer formed on an outer side of the inner rubber layer by providing reinforcing yarns. A radial depth B of the pressure resistant reinforcement layer at a position of each of corrugation valleys of the rubber layer has such relationship with respect to a corrugation valley depth A of the rubber layer as 0< or =B< or =0.7×A, and an opening angle ? of each of the corrugation valleys of the rubber layer satisfies ?< or =100°.Type: GrantFiled: June 22, 2004Date of Patent: January 10, 2006Assignee: Tokai Rubber Industries, Ltd.Inventors: Tetsuya Arima, Norihiko Furuta, Ayumu Ikemoto
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Publication number: 20050268979Abstract: A hose of impermeability has a wall corrugated along at least a part of its length, and formed by an inner thin resin layer, a laminated layer including a metal film, or a layer formed by a metal film, and an outer thin resin layer. It has a very high fluid impermeability owing to its wall layer including or formed by a metal film, and is also very flexible, capable of absorbing vibration, light in weight and strong. A tubular inner thin resin layer is formed by extrusion as the innermost layer of a multi-layered hose wall, and a laminated tape including a metal film, or simply a metal film is spirally wound or longitudinally lapped about the inner resin layer. An outer thin resin layer is formed about a layer formed by the laminated tape, or metal film, and the whole is at least partly corrugated. Alternatively, corrugation is done before an outer thin resin layer is formed by electrostatic powder coating.Type: ApplicationFiled: August 2, 2005Publication date: December 8, 2005Inventors: Motoshige Hibino, Kazutaka Katayama, Ayumu Ikemoto, Hidehito Ikeda, Hiroaki Ito
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Publication number: 20050221132Abstract: A rubber composition that is used for a fuel reforming system and has high resistance to fossil fuel and low extractability, as well as excellent extrusion moldability is provided. A rubber hose for the fuel reforming system using the rubber composition is also provided. The rubber composition for a fuel reforming system includes the following components (A), (B), and (C): (A) a fluorocarbon rubber; (B) carbon black having a specific surface area less than 28 m2/g as determined by a BET method; and (C) a non-sulfur-based cross-linker. The rubber hose for a fuel reforming system is made of the rubber composition.Type: ApplicationFiled: March 24, 2005Publication date: October 6, 2005Applicant: TOKAI RUBBER INDUSTRIES, LTD.Inventors: Ryo Hirai, Ayumu Ikemoto