Patents Assigned to Tokai Rubber Industries, Ltd.
  • Patent number: 8555931
    Abstract: Provided is an in-tank tube excellent in pressure-resisting performance. The in-tank tube is an in-tank tube (1) for an automotive fuel of a monolayer structure, the in-tank tube (1) for an automotive fuel being installed in a fuel tank (2) and having a construction that absorbs displacement of the fuel tank (2) and vibration of a fuel pump (5). Further, the in-tank tube (1) for an automotive fuel is formed into a monolayer structure formed of a resin material using an aliphatic polyamide resin as a main component, and has the following pressure-resisting characteristic (X): (X) when silicone oil is charged as a pressurizing medium into the in-tank tube immersed in a test liquid (Fuel C:methanol=85:15 (volume basis)) at 80° C. for 168 hours, both ends of the in-tank tube are each blocked with a test pipe, and a pressure test is performed at a rate of pressure increase of 1.0 MPa/min and room temperature, a pressure (burst pressure) at which the in-tank tube bursts or the test pipe disconnects is 2.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: October 15, 2013
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Kazutaka Katayama, Koji Mizutani, Keita Asai, Tokunori Kobayashi
  • Publication number: 20130263379
    Abstract: The objective of the present invention is to provide a mattress including a plurality of cells provided on a body pressure working surface of a substrate that supports a human body, and a pressure control means that changes a setting of a height of each cell by adjusting a pressure in a fluid chamber formed within the cell. An elastic cushion layer is provided on a body pressure working surface of the cells, and a constricted portion is formed in a middle in the height of the each cell so that the body pressure working surface of the cell is allowed to tilt following deformation of the cushion layer as a result of the cells' precession-deformation at the constricted portion.
    Type: Application
    Filed: June 5, 2013
    Publication date: October 10, 2013
    Applicants: KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, TOKAI RUBBER INDUSTRIES, LTD.
    Inventors: Akitsugu MISAKI, Shin-ichiro TAKASUGI, Shuji FUKAGAWA, Mika WADA, Kiyoe HARADA, Keiko MIYAZAKI, Yukiko TACHIBANA, Yukihide IWAMOTO
  • Publication number: 20130264756
    Abstract: A fluid filled vibration damping device including: a first mounting member; a second mounting member having a cylindrical portion; and a main rubber elastic body elastically connecting the first and second mounting members. The first mounting member is fixed to one end of the main rubber elastic body, and an insertion metal fitting in a cylindrical shape is fixed onto an outer peripheral face of another end thereof, and the cylindrical portion of the second mounting member is bonded by pressure to the insertion metal fitting with a sealing rubber in between in a fluid-tight manner. The insertion metal fitting is provided with an inward protrusion where part of a wall portion protrudes inward. A sealing rubber storage space is formed between the inward protrusion and the cylindrical portion of the second mounting member.
    Type: Application
    Filed: March 7, 2013
    Publication date: October 10, 2013
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventors: Hironori DAITO, Mutsumi MURAOKA, Hironori KOYAMA
  • Patent number: 8545648
    Abstract: Disclosed is a method for producing a heat insulating laminate structure having an excellent solar radiation shielding capability as well as an excellent radio wave transparency. The method includes placing a transparent laminate film between two transparent substrates, the transparent laminate film having on at least one side of a transparent polymer film a laminated layer structure in which a metal oxide layer containing an organic component and a metal layer are laminated and grooves having widths of 30 ?m or less are formed with dividing the metal layer; bonding the two substrates to each other through the transparent laminate film under application of a pressure; and promoting division of the metal layer in the transparent laminate film by the applied pressure to increase an overall surface resistance.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: October 1, 2013
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Hiroki Inagaki, Tetsuya Takeuchi, Tetsuji Narasaki, Masataka Inuzuka, Osamu Goto
  • Publication number: 20130248091
    Abstract: A transparent laminate film which has visible light transmittance, sunlight blocking properties, radio wave transmittance and good appearance is provided. A transparent laminate film includes a laminate structure formed on at least one side of a transparent polymer film, in which a metal oxide layer and a metal layer are laminated, the metal oxide layer containing an organic component, wherein grooves having a width of 30 ?m or less are formed in the laminate structure, and an overall surface resistance is 150?/? or more. Preferably, the grooves are numerous cracks, or are formed by laser processing. Further, preferably, the transparent polymer film has an easy adhesion layer formed on at least one side thereof, and the laminate structure is formed on top of the easy adhesion layer. Furthermore, preferably, the metal oxide layer containing the organic component is formed by a sol-gel method using optical energy during sol-gel curing.
    Type: Application
    Filed: May 13, 2013
    Publication date: September 26, 2013
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventors: Masataka INUDUKA, Tetsuya TAKEUCHI, Hiroki INAGAKI, Tetsuji NARASAKI, Taiji NISHITANI
  • Publication number: 20130249180
    Abstract: An upper support for vehicle suspension including: an inner cylindrical member; an outer cylindrical member spaced apart peripherally outward from the inner cylindrical member; a rubber elastic body interposed between the inner cylindrical member and the outer cylindrical member while elastically connecting the two members; and a flange portion extending radially outward from the outer cylindrical member while being adapted to be overlapped and fixed onto a mounting portion of a vehicle body. A fastening seat portion is provided to the flange portion over a prescribed area and has a contact face adapted to be in contact against the mounting portion of the vehicle body. A concave/convex portion is formed on the contact face of the fastening seat portion over a prescribed area thereof.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 26, 2013
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, TOKAI RUBBER INDUSTRIES, LTD.
    Inventors: Hiroyuki MATSUMURA, Yorikazu NAKAMURA, Satoshi UCHIDA, Yusuke WASHITANI
  • Patent number: 8539627
    Abstract: A body position and pressure control apparatus is provided capable of highly accurately detecting body pressure distribution without causing a sense of discomfort for a sleeper, changing body positions, and distributing body pressure. The body position and pressure control apparatus has a mattress provided with a plurality of divided portions and supporting a sleeper, an elastomer sensor, and a body pressure adjuster controlling each of the divided portions based on an instruction from the elastomer sensor and thereby changing the body pressure distribution of the sleeper. The elastomer sensor has a sheet sensor main body and a calculator, the sensor main body having an elastomer sensor thin film, a plurality of electrodes, and a plurality of detectors corresponding to the divided portions provided between the electrodes.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: September 24, 2013
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Masaki Terawaki, Takeaki Yoshikawa, Hiroaki Ito
  • Patent number: 8534711
    Abstract: Piping unit for transporting a fuel is constructed by connecting a resin tube and a connector for connecting the resin tube to a mating pipe. The connector has a connector body including a retainer holding portion and a retainer for engaging with the mating pipe. The resin tube has a multilayered construction including an inner fuel barrier layer and an outer layer covered with a protective layer. The outer layer has a small outer diameter (od) up to 6 mm, the fuel barrier layer and the outer layer have a wall-thickness (t), and a ratio of the outer diameter (od)/the wall thickness (t) is in a range of 4 to 8.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: September 17, 2013
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Tomoki Inoue, Masayuki Sasagawa
  • Publication number: 20130223893
    Abstract: Provided is a developing roll for use in an electrophotographic machine capable of preventing an ion conductive agent from blooming and retaining long-term charge decay characteristics. The roll (1) includes a shaft (2), an elastomeric layer (3) and a surface layer (4), wherein the surface layer contains a composition containing an (A) ingredient defining a binder resin having a functional group reactive with an alkoxy silyl group in a (B) ingredient, and the (B) ingredient defining an ion conductive agent containing a cation having a chemical structure represented by R1-N+-R2-Si(OR3)3, where R1: a cyclic organic group or a linear organic group, R2: a group containing at least (CH2)n, n representing an integer number, and R3: an alkyl group, wherein the cation is bound with the (A) ingredient, and wherein the (B) ingredient is 0.10 to 3 parts by mass with respect to 100 parts by mass of the (A) ingredient.
    Type: Application
    Filed: April 16, 2013
    Publication date: August 29, 2013
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventor: Tokai Rubber Industries, Ltd.
  • Publication number: 20130221001
    Abstract: A resin-made fuel inlet pipe that has a light weight, excellent impact resistance, and causes no fuel leakage includes at least one resin layer comprising a resin composition containing (A) a high-density polyethylene (HDPE) or a linear short-chain branched polyethylene (LLDPE); (B) a polyethylene polymerized with a metallocene-based catalyst; and (C) a carbon black. A weight mixing ratio (A)/(B) is in a range of from 10/90 to 90/10; a content of component (C) is in a range of from 0.1 to 5 parts by weight with respect to 100 parts by weight of a total of components (A) and (B); a soft tissue (Y) comprising component (B) is inserted between linear crystalline tissues (X) comprising component (A) to expand an interval between the tissues (X); and component (C) is dispersed in the soft tissue (Y).
    Type: Application
    Filed: April 12, 2013
    Publication date: August 29, 2013
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventor: TOKAI RUBBER INDUSTRIES, LTD.
  • Patent number: 8517404
    Abstract: To provide a toe correct bush having excellent durability and a novel structure, the toe correct bush effectively achieving improvement in running stability during steering with a toe correction function and improvement in straight line performance with an intermediate restraining plate. A first intermediate restraining member is provided between opposing surfaces of an inner inclined portion and an outer inclined portion and is fixed to a compression rubber, the first intermediate restraining member spreading and being isolated from the opposing surfaces of the inner inclined portion and the outer inclined portion. A second intermediate restraining member is provided independent from the first intermediate restraining member between opposing surfaces of an inner flange and an outer flange and is fixed to a connecting rubber, the second intermediate restraining member spreading and being isolated from the opposing surfaces of the inner flange and the outer flange.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: August 27, 2013
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Ryusuke Yamada, Yorikazu Nakamura
  • Publication number: 20130216751
    Abstract: To provide a resin hose excellent in barrier property (fuel barrier property or gas barrier property) and flexibility, the resin hose includes a resin layer containing the following components (A) and (B) as main components thereof, and containing the following component (C): (A) an aliphatic polyamide; (B) a semi-aromatic polyamide; and (C) diisobutyl adipate, in which the resin layer is formed of a sea phase formed of the components (A) to (C), and needle-like island phases each formed only of the component (B), the needle-like island phases being arranged along a longitudinal direction of the hose.
    Type: Application
    Filed: March 15, 2013
    Publication date: August 22, 2013
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventor: TOKAI RUBBER INDUSTRIES, LTD.
  • Patent number: 8511656
    Abstract: A member mount has an inner tubular member, an outer tubular member, and a rubber elastic body connecting the tubular members. An inner peripheral resin layer having an inner hole as a positional hole is layered on an internal peripheral surface of the inner tubular member and an outer peripheral resin layer is layered on an outer peripheral surface thereof. The resin layers are connected to each other in resin connection portions in connection holes passing through the inner tubular member in four positions in the circumferential direction at equal distances.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: August 20, 2013
    Assignee: Tokai Rubber Industries, Ltd.
    Inventor: Yuki Yahata
  • Publication number: 20130187317
    Abstract: Provided is a fluid-filled vibration damping rubber device, including enclosed spaces (primary fluid chamber and auxiliary fluid chamber) formed by chamber walls (vibration damping rubber body and rubber membrane) which deform in accordance with vibration input, the enclosed spaces being filled with a fluid, in which: the chamber walls each include a diene-based rubber; and the fluid includes a glycol-based solution containing a benzotriazole-based compound having an amine group. The fluid-filled vibration damping rubber device is capable of eliminating the degradation of the chamber walls (rubber bodies) and the deterioration of its durability due to the dissolution of components in the rubber bodies into the filling fluid.
    Type: Application
    Filed: March 12, 2013
    Publication date: July 25, 2013
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventor: TOKAI RUBBER INDUSTRIES, LTD.
  • Patent number: 8492449
    Abstract: Disclosed is a photosensitive resin composition that provides an excellent water developability, drying property, and image reproducibility. The photosensitive resin composition comprises a water-dispersible latex (A), a rubber (B), a surfactant (C), a photopolymerizable monomer (D), and a photopolymerization initiator (E). A ratio of a mass of the component (C) to a total mass of the components (A), (B), and (C) is within a range of 0.1 to 20%. A ratio of a mass of the component (A) to a total mass of the components (A) and (B) is within 20 to 90%. A size of a dispersed phase consisting mainly of the component (B) is 10 ?m or smaller.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: July 23, 2013
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Daisuke Inoue, Koki Matsuoka
  • Patent number: 8474799
    Abstract: A fluid filled type vibration damping device including: a partition member having a communication passage connecting a pressure receiving and equilibrium chambers; an obstructing rubber elastic plate juxtaposed against the communication passage from a pressure receiving chamber side, adapted to obstruct the communication passage, and arranged to be exposed to pressure of the pressure receiving and the equilibrium chamber at both faces; and a constraining member provided for retaining an outer peripheral section of the obstructing rubber elastic plate in contact against the partition member at multiple locations. The constraining member provides an opening/closing control member operated to induce the obstructing rubber elastic plate to push against the partition member and close off the communication passage, and to induce elastic deformation of the obstructing rubber elastic plate to be separated from the partition member.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: July 2, 2013
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Wakako Michiyama, Kei Okumura
  • Patent number: 8474800
    Abstract: A fluid filled type vibration damping device including an elastic rubber body elastically connecting an inner shaft member and an outer tube member. The elastic rubber body has a solid rubber wall that includes inside face recesses and outside face recesses respectively formed to either side of the inner shaft member in an axis-perpendicular direction so that a pair of thin portions and a pair of thick portions respectively situated in opposition along mutually orthogonal axes lying in axis-perpendicular directions are formed in the solid rubber wall. A deepest part of the inside face recesses is situated towards an axial small diameter side of the solid rubber wall with respect to an deepest part of the outside face recesses, with the inside face recesses and the outside face recesses overlapping one another in the axis-perpendicular direction of the solid rubber wall.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: July 2, 2013
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Kei Okumura, Noritaka Matsuoka
  • Publication number: 20130161883
    Abstract: A vibration damping device including a main rubber elastic body elastically connecting a second mounting member and a first mounting member being arranged on axially one side of the second mounting member and a cylindrical outer bracket fit onto the second mounting member. A stopper portion integrally formed with the outer bracket extends radially inwardly to provide a first pressure receiving portion. A bound stopper member that restricts mutually approaching displacement of the two mounting members in the axial direction is constituted by including the first pressure receiving portion. A cylindrical second pressure receiving portion in a dual structure is formed by having the first pressure receiving portion extend axially inwardly and then folded axially outwardly. An axis perpendicular stopper member that restricts relative displacement of the two mounting members in the axis perpendicular direction is constituted by including the second pressure receiving portion.
    Type: Application
    Filed: December 23, 2011
    Publication date: June 27, 2013
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventors: Naoki NISHI, Yasunori ISOGAI
  • Publication number: 20130157173
    Abstract: An adhesive seal member for a fuel cell of the present invention includes a cross-linked product of a rubber composition containing components (A) to (E): (A) at least one rubber component selected from ethylene-propylene rubber and ethylene-propylene-diene rubber, (B) an organic peroxide having a one-hour half-life temperature of 130° C. or less, (C) a crosslinking aid, (D) at least one adhesive component selected from a resorcinol compound and a melamine compound, an aluminate coupling agent, and a silane coupling agent, and (E) a softener having a pour point of ?40° C. or less. If the ethylene-propylene rubber or the ethylene-propylene-diene rubber in (A) the rubber component has an ethylene content of 53% by mass or less, the rubber composition may be devoid of (E) the softener having a pour point of ?40° C. or less.
    Type: Application
    Filed: January 10, 2013
    Publication date: June 20, 2013
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventor: TOKAI RUBBER INDUSTRIES, LTD.
  • Publication number: 20130154171
    Abstract: A fluid-filled type vibration damping device including a partition member having a housing space, and a movable plate housed within the housing space so that displacement thereof is limited by abutment against inside wall faces of the housing space. Abutted sloping faces are defined by outside peripheral portions of the inside wall faces of the housing space situated in opposition in an axial direction while sloping axially outside going towards an inner peripheral side. An outside peripheral abutting portion formed of a rubber elastic body is provided to an outside peripheral portion of the movable plate, and abutting sloping faces are defined by opposite faces of the outside peripheral abutting portion that slope axially outside going towards the inner peripheral side. The abutted sloping faces and the abutting sloping faces have different slope angles so as to slope relative to each other.
    Type: Application
    Filed: December 7, 2012
    Publication date: June 20, 2013
    Applicants: HONDA MOTOR CO., LTD., TOKAI RUBBER INDUSTRIES, LTD.
    Inventors: TOKAI RUBBER INDUSTRIES, LTD., HONDA MOTOR CO., LTD.