Patents by Inventor Tetsuya Arima
Tetsuya Arima 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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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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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: 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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Patent number: 6935378Abstract: A vibration absorbing hose including a corrugated portion 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 providing reinforcing yarns, so as to have corrugations along the corrugated portion of the inner rubber layer. The inner rubber layer contains scaly filler in an amount of 50 phr to 200 phr so as to be oriented in a stretching direction of the inner rubber layer. The scaly filler has an aspect ratio of 2 to 90.Type: GrantFiled: June 22, 2004Date of Patent: August 30, 2005Assignee: Tokai Rubber Industries, Ltd.Inventors: Ayumu Ikemoto, Tetsuya Arima
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Patent number: 6854485Abstract: A vibration absorbing hose excellent in vibration absorbing property, mounting stability and shape retaining property. The vibration absorbing hose comprises at least one rubber layer composed of a rubber composition having a storage elastic modulus (E?) of 20 to 100 MPa at 200 Hz with an elongation strain of 0.1% at an ordinary temperature (about 20° C.), and a damping factor (tan ?) of not lower than 0.4.Type: GrantFiled: January 29, 2002Date of Patent: February 15, 2005Assignee: Tokai Rubber Industries, Ltd.Inventors: Eiichi Daikai, Tetsuya Arima
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Publication number: 20040256016Abstract: 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: ApplicationFiled: June 7, 2004Publication date: December 23, 2004Inventors: Tetsuya Arima, Norihiko Furuta, Ayumu Ikemoto
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Publication number: 20040256018Abstract: A vibration absorbing hose including a corrugated portion 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 providing reinforcing yarns, so as to have corrugations along the corrugated portion of the inner rubber layer. The inner rubber layer contains scaly filler in an amount of 50 phr to 200 phr so as to be oriented in a stretching direction of the inner rubber layer. The scaly filler has an aspect ratio of 2 to 90.Type: ApplicationFiled: June 22, 2004Publication date: December 23, 2004Inventors: Ayumu Ikemoto, Tetsuya Arima
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Publication number: 20040256017Abstract: 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 &thgr; of each of the corrugation valleys of the rubber layer satisfies &thgr;< or =100°.Type: ApplicationFiled: June 22, 2004Publication date: December 23, 2004Inventors: Tetsuya Arima, Norihiko Furuta, Ayumu Ikemoto
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Patent number: 6679295Abstract: A vibration absorbing rubber hose having a laminar structure including an inner rubber layer, a reinforcing layer, and an outer rubber layer, which layers are laminated integrally with one another in the order of description in a radially outward direction of the rubber hose, wherein the inner rubber layer is formed of a butyl rubber material and/or a halogenated butyl rubber material while the outer rubber layer is formed of an EPM material consisting of ethylene-propylene copolymer.Type: GrantFiled: July 26, 2002Date of Patent: January 20, 2004Assignee: Tokai Rubber Industries, Ltd.Inventors: Eiichi Daikai, Norihiko Furuta, Tetsuya Arima, Shinobu Kanbe
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Publication number: 20030034081Abstract: A vibration absorbing rubber hose having a laminar structure including an inner rubber layer, a reinforcing layer, and an outer rubber layer, which layers are laminated integrally with one another in the order of description in a radially outward direction of the rubber hose, wherein the inner rubber layer is formed of a butyl rubber material and/or a halogenated butyl rubber material while the outer rubber layer is formed of an EPM material consisting of ethylene-propylene copolymer.Type: ApplicationFiled: July 26, 2002Publication date: February 20, 2003Applicant: Tokai Rubber Industries, Ltd.Inventors: Eiichi Daikai, Norihiko Furuta, Tetsuya Arima, Shinobu Kanbe
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Publication number: 20020157722Abstract: A refrigerant transporting hose has a five-layered wall formed of an inner rubber layer, a middle rubber layer, an outer rubber layer, a first reinforcing layer formed between the inner and middle rubber layers and a second reinforcing layer formed between the middle and outer rubber layers. Each rubber layer has a thickness of at least 0.3 mm. Each reinforcing layer is a single layer of spirally wound reinforcing yarn, and the two reinforcing layers have substantially opposite spiral yarn directions. The hose having no resin layer in its wall is of improved flexibility, as well as retaining satisfactory pressure resistance, fluid impermeability and kink resistance.Type: ApplicationFiled: February 22, 2002Publication date: October 31, 2002Inventors: Tetsuya Arima, Masanobu Onishi, Keiichi Kitamura, Makoto Yoshino
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Publication number: 20020144743Abstract: A vibration absorbing hose excellent in vibration absorbing property, mounting stability and shape retaining property. The vibration absorbing hose comprises at least one rubber layer composed of a rubber composition having a storage elastic modulus (E′) of 20 to 100 MPa at 200 Hz with an elongation strain of 0.1% at an ordinary temperature (about 20° C.), and a damping factor (tan &dgr;) of not lower than 0.4.Type: ApplicationFiled: January 29, 2002Publication date: October 10, 2002Applicant: Tokai Rubber Industries, Ltd.Inventors: Eiichi Daikai, Tetsuya Arima
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Patent number: 5826623Abstract: A high pressure hose for refrigerant made up ofan internal resin tube;an inner rubber layer, which is applied to an outer circumference thereof;a first reinforcing layer comprising a first splicing yarn, which is spirally wound around an outer circumference thereof;a second reinforcing layer comprising a second splicing yarn, which is spirally wound in the opposite direction to the first reinforcing layer around an outer circumference thereof; and,an outer rubber layer, which is applied to an outer circumference thereof,the inner rubber layer comprising rubber material whose 50% modulus M.sub.50 at a temperature of 135.degree. C. is 20 to 40 kgf/cm.sup.2.Type: GrantFiled: December 3, 1996Date of Patent: October 27, 1998Assignee: Tokai Rubber Industries, Ltd.Inventors: Koji Akiyoshi, Noriaki Imaeda, Tetsuya Arima