Pneumatic Tire Or Inner Tube Patents (Class 152/450)
  • Patent number: 11497275
    Abstract: The present invention generally relates to methods of printing articles using three-dimensional printing and other printing techniques, and to articles formed from such techniques, including the printing of articles of footwear containing particles. Certain embodiments are generally directed to composites comprising particles (e.g., reinforcing particles), for example, rubber particles. The particles may be used, for example, to increase slip or abrasion resistance. The composites may also contain polyurethanes or other compounds, e.g., to facilitate fabrication, e.g., using three-dimensional printing and other printing techniques. Other embodiments are directed to methods of making or using such articles. For example, in some embodiments, a composite may be prepared by mixing particles (e.g., reinforcing particles) with at least a first fluid and a second fluid within a nozzle, such as a microfluidic printing nozzle, which may be used to direct the resulting product onto a substrate.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: November 15, 2022
    Assignee: Kornit Digital Technologies Ltd.
    Inventors: Travis Alexander Busbee, Avin Dhoble, Noah Tremblay, Clara H. Rhee, Sean Christopher Troiano
  • Patent number: 11491827
    Abstract: A run-flat tire is provided with: a carcass layer mounted between a pair of bead portions; and a run-flat reinforcing layer having a crescent-shaped cross-section, provided on a side wall portion on an inner side of the carcass layer in a tire width direction, a band-like sound absorbing member that extends in a tire circumferential direction adhering to a region of a tire inner surface corresponding to a tread portion, wherein the band-like sound absorbing member is locally arranged in at least one shoulder region within the region corresponding to the tread portion.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: November 8, 2022
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Takashi Hoshiba
  • Patent number: 11453186
    Abstract: Disclosed herein are automated systems and methods utilizing a plurality of specialized RFID tags incorporated within various tire manufacturing components (e.g., mold segments, mold container, bladder plates, tire presses, and extrusion dies) that are able to readily track tire manufacture and identify defect source(s) while concurrently being configured to the harsh processes and temperatures of tire manufacture.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: September 27, 2022
    Assignee: FINELINE TECHNOLOGIES
    Inventors: Jos Uijlenbroek, Jan Svoboda
  • Patent number: 11400770
    Abstract: A pneumatic tyre (1) for decreasing running noise in a low temperature environment includes a noise damper (20) made of a porous material and fixed to a tyre inner cavity surface (16) of a tread portion (2). In the noise damper (20), hardness under a 25% compression load measured in accordance with Japanese Industrial standard JIS K6400-2 in an atmosphere of ?60 degrees Celsius is 110 kPa or less.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: August 2, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Takahiro Kawachi
  • Patent number: 11370254
    Abstract: A tire noise reduction device includes a sound absorbing member made of a porous material; and a band member disposed between the sound absorbing member and the tire inner surface and provided for attaching the sound absorbing member to a tire inner surface, the band member including chamfered portions on both surface sides at both ends in a width direction of the band member.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: June 28, 2022
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Masahiro Naruse
  • Patent number: 11331966
    Abstract: A pneumatic tire includes: an annular-shaped tread portion extending in a tire circumferential direction; a pair of sidewall portions disposed on both sides of the tread portion; and a pair of bead portions disposed on an inner side in a tire radial direction of the sidewall portions; wherein a band-like sound absorbing member is adhered on an inner surface of the tread portion in the tire circumferential direction; and a plurality of cuts with an angle ? with regard to the tire circumferential direction within a range of 40°???90° are formed on both end portions in a lateral direction of the band-like sound absorbing member, and the cuts are connected only to one end portion in the lateral direction of the band-like sound absorbing member.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: May 17, 2022
    Assignee: The Yokohama Rubber Co., LTD.
    Inventors: Takashi Hoshiba, Tatsuro Shinzawa, Masahiro Naruse
  • Patent number: 11331965
    Abstract: A pneumatic tire is provided, including: an annular-shaped tread portion extending in a tire circumferential direction; a pair of sidewall portions disposed on both sides of the tread portion; and a pair of bead portions disposed on an inner side in a tire radial direction of the sidewall portions; wherein a band-like sound absorbing member is adhered on an inner surface of the tread portion in the tire circumferential direction; and the band-like sound absorbing member has a plurality of cuts extending in two mutually intersecting directions, and of the cuts, a cut extending in one direction is a cut extending parallel with regard to a tire lateral direction or tire circumferential direction.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: May 17, 2022
    Assignee: The Yokohama Rubber Co., LTD.
    Inventors: Masahiro Naruse, Tatsuro Shinzawa, Takashi Hoshiba
  • Patent number: 11305592
    Abstract: A pneumatic vehicle tire of a radial type of construction with a profiled tread (1), sidewalls (3), bead regions (2) and an airtight inner layer (4), which forms the inner side (4a) facing the interior space of the pneumatic vehicle tire, ribs (6) being formed on the inner layer (4), having been imprinted in it by a heating bladder introduced into the interior of the tire during the vulcanizing of the pneumatic vehicle tire in a tire heating mold, and a sound absorber (5) being provided so as to extend in an annular manner on a circumferential region (4b) of the inner side (4a) opposite from the tread (1). Grooves (7) have been formed by the heating bladder at least in a partial region of the circumferential region (4b) of the inner layer (4a) on which the sound absorber (5) is provided.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: April 19, 2022
    Assignee: Continental Reifen Deutschland GmbH
    Inventor: Oliver Schürmann
  • Patent number: 11292298
    Abstract: The invention relates to a tire comprising a circumferential tread having an outer tread surface and an inner innerliner surface; at least two spaced-apart beads; sidewall portions extending between the tread and the beads; and a belt-like foam noise damper having first and second terminal ends, wherein the noise damper lines the innerliner surface; wherein the noise damper is secured to the innerliner surface via an adhesive situated between the noise damper and the innerliner, wherein the terminal ends of the noise damper are cut at an angle of less than 90 degrees, overlap each other, and the overlapped second terminal end of the foam is joined to the first terminal end by the adhesive present underneath the second terminal end, and wherein the adhesive has weight in the range of 30 to 800 grams per square meter of foam surface.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: April 5, 2022
    Assignee: Triangle Tyre Co. Ltd.
    Inventors: Ramendra Nath Majumdar, Wang Dapeng, Zhang Tao
  • Patent number: 11241913
    Abstract: A rubber composition contains: (A) a polymer having a carbon-carbon unsaturated bond and exhibiting a value ? of 0.6 or more as obtained by the following formula (i): ?=(p+(0.5×r))/(p+q+(0.5×r)+s)??(i) wherein p, q, r, and s are the proportions by mole of structural units represented by the following formulae (1), (2), (3), and (4), respectively in the polymer: and (B) modified silica.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: February 8, 2022
    Assignee: JSR Corporation
    Inventors: Koichiro Tani, Takuya Sano, Takato Fukumoto, Naoki Sugiyama, Kunpei Kobayashi, Takumi Adachi, Jiro Ueda, Ryoji Tanaka
  • Patent number: 11241912
    Abstract: A tire having a tread comprising at least two radially superposed portions which comprise a radially external portion intended to come into contact with ground during rolling, the radially external portion being made of a first rubber composition, and a radially internal portion made of a second rubber composition; wherein the first rubber composition is based on at least an elastomer matrix; and a reinforcing filler comprising between 40 and 200 phr of a reinforcing inorganic filler; wherein the second rubber composition is based on at least: an elastomer matrix comprising 20 to 70 phr of a first diene elastomer bearing at least one SiOR function, R being a hydrogen atom or a hydrocarbon radical, 20 to 70 phr of a second diene elastomer which is polyisoprene, and comprising no third diene elastomer or at most 20 phr; a reinforcing filler comprising a reinforcing inorganic filler.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: February 8, 2022
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Makiko Watanabe, Hiroko Fukasawa
  • Patent number: 11220595
    Abstract: It has been unexpected found that silylated triglyceride oils can be incorporated into tire tread rubber formulations that include reinforcing fillers to provide improved wet traction characteristic, rolling resistance, and tread-wear without compromising cured stiffness (dry traction) and ultimate properties (chip/chunk resistance). The level of silica coupling agent needed in such formulation can also typically reduced. The present invention more specifically discloses a rubber formulation which is comprised of (1) a rubbery polymer; (2) a reinforcing filler, such as silica or carbon black; and (3) a silylated triglyceride oil. The silylated triglyceride oil will include silyl groups of the structural formula: —(CH2)n—Si(OR)3, wherein n represents an integer within the range of 1 to 8, and wherein R represents an alkyl group containing from 1 to 8 carbon atoms.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: January 11, 2022
    Assignee: THE GOODYEAR TIRE & RUBBER COMPANY
    Inventors: Joseph John Kulig, Kelsey Elizabeth Cantwell, George Jim Papakonstantopoulos
  • Patent number: 11220077
    Abstract: Process and an apparatus for applying noise-reducing elements to a tyre for vehicle wheels that has a radially inner surface with a service area and having a circumferential dimension. The process determines the position in circumferential direction of the service area on the radially inner surface of the tyre, determines the position in circumferential direction of a target area on the radially inner surface of the tyre based on the position in circumferential direction of the service area, and applies a noise-reducing element at the target area. The position in circumferential direction of the service area is determined by circumferentially inspecting the radially inner surface of the tyre starting from a reference position, detecting the angular position of the service area with respect to the reference position and determining the position in circumferential direction of the service area based on the angular position and on the circumferential dimension of the radially inner surface of the tyre.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: January 11, 2022
    Assignee: PIRELLI TYRE S.P.A.
    Inventors: Ivan Gildo Boscaino, Gianni Mancini, Cristiano Puppi, Erika Vaniglia
  • Patent number: 11214101
    Abstract: A pneumatic tire according to the present technology is a pneumatic tire provided with a tread section, sidewall sections, and bead sections, a belt-shaped sound-absorbing member being bonded via an adhesive layer to an inner surface of the tire in a region corresponding to the tread section along the circumferential direction of the tire, wherein a bonding surface of the sound-absorbing member is provided with a bonded region that is bonded to the inner surface of the tire and an unbonded region that is not bonded to the inner surface of the tire, and the bonded region is divided by the unbonded region into a plurality of divisions along the circumferential direction of the tire.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: January 4, 2022
    Inventor: Atsushi Tanno
  • Patent number: 11167602
    Abstract: In a pneumatic tire, a sponge member extending in a tire circumferential direction is attached around an entire circumference of a tire inner peripheral surface of a tread portion. The sponge member includes at least: a first sponge layer; a second sponge layer laminated inward of the first sponge layer in a tire radial direction; and a third sponge layer laminated inward of the second sponge layer in the tire radial direction. Each of the first sponge layer and the third sponge layer has a smaller expansion ratio than an expansion ratio of the second sponge layer.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: November 9, 2021
    Assignee: TOYO TIRE CORPORATION
    Inventor: Kazuhiro Sakakibara
  • Patent number: 11161962
    Abstract: A rubber composition has an improved rolling resistance and is based on at least a diene elastomer comprising mainly at least one isoprene elastomer; a reinforcing filler comprising from 15 to 70 phr of carbon black having a BET specific surface area of less than 70 m2/g, and/or a COAN of less than 90 ml/100 g, and from 5 to 20 phr of silica; a salt of an alkaline-earth, alkali or lanthanide metal; and a crosslinking system; in which composition the carbon black to silica ratio is greater than 1.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: November 2, 2021
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Joël Barbouteau, Auriane Frisch, Kazuhide Mima, Natsuko Shiozawa
  • Patent number: 11130374
    Abstract: Pneumatic tyre (1) comprising a carcass ply (11), two ring beads (12), a tread strip (10), a tread belt (15) comprising at least two tread plies (16), an innerliner (2) and an additional functional material layer (4,5) arranged between the innerliner (2) and the inner cavity (17) of the pneumatic tyre (1), wherein between the innerliner (2) and the layer of additional functional material (4,5) a net layer (3) is interposed, which facilitates the removal thereof during disposal at the end-of-life of the pneumatic tyre.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: September 28, 2021
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Beatrice Mellara, Pasquale Agoretti, Giuseppe Pezzullo, Claudio D'Alfonso, Giampiero Pavoni
  • Patent number: 11117423
    Abstract: The pneumatic tire of the present technology includes: a tread portion; sidewall portions; and bead portions. A pattern of grooves is formed on the tread portion, and a strip-shaped sound-absorbing member is bonded along the tire circumferential direction to a region of the tire inner surface corresponding to the tread portion via an adhesive layer. A first ground contact region is defined between the tire ground contact edge on one side in the tire width direction and the tire equatorial plane, and a second ground contact region is defined between the tire ground contact edge on the other side in the tire width direction and the tire equatorial plane. The sound-absorbing member is offset with respect to the tire width direction so that the centroid of a cross-section of the sound-absorbing member in a plane that includes a tire axis is located within the first ground contact region.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: September 14, 2021
    Inventors: Yousuke Sakamoto, Atsushi Tanno
  • Patent number: 11090889
    Abstract: A curing bladder (7) for a tire has a shape of revolution about a central axis and a flexible wall made of crosslinked rubber, the external surface of which is intended to come into contact with the internal surface of a green tire during curing, the external surface having a relief structure having a plurality of air evacuation channels. The relief structure has first channels forming air evacuation grooves (100) arranged at a distance of between 2 and 5 mm, and having a depth of between 0.4 and 1 mm, two adjacent grooves defining, between one another, an inter-groove zone (500) having second channels forming air channelling furrows (1000) made so as to communicate with one another and with at least one of the grooves (100), the furrows each having a depth of between 0.01 and 0.4 mm and being situated at a distance of between 0.2 and 1 mm from one another.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: August 17, 2021
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Frederic Pialot, Alain Faugeras, Jose Merino Lopez
  • Patent number: 11027577
    Abstract: The provided tire has excellent durability regardless of use in a high-humidity environment or contact with water, even though the framework member of the tire is made of a resin material. The resin material is made of a resin composition including 60 mass % or more of a polyamide resin formed by polymerizing an aliphatic diamine having 6 to 20 carbon atoms and an aliphatic dicarboxylic acid having 10 to 20 carbon atoms.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: June 8, 2021
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Daisuke Nakajima
  • Patent number: 11014318
    Abstract: Provided are a pneumatic tire where a band-shaped surface fastener extending in a tire circumferential direction is mounted on a tire inner surface, a cut portion composed of a group of a plurality of notches extending in a width direction of this surface fastener without traversing this surface fastener is formed in this surface fastener repetitively along the tire circumferential direction, the surface fastener is divided into a plurality of components by these notches, and the surface fastener is disposed on the tire inner surface in a state where the cut portion is stretched so the components are continuous in the tire circumferential direction.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: May 25, 2021
    Inventors: Atsushi Tanno, Hayato Sakamoto
  • Patent number: 11001100
    Abstract: Provided is a pneumatic tire, which includes a tread portion having an annular shape and extending in a tire circumferential direction, a pair of sidewall portions disposed on both sides of the tread portion, a pair of bead portions disposed on inner sides of the pair of sidewall portions in a tire radial direction, and a band-like sound absorbing member bonded to an inner surface of the tread portion along the tire circumferential direction. The band-like sound absorbing member includes a plurality of cuts in an outer circumferential surface of the band-like sound absorbing member. At least one end of each of the cuts terminates within the band-like sound absorbing member.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: May 11, 2021
    Inventor: Takashi Hoshiba
  • Patent number: 10933700
    Abstract: A pneumatic tire includes a band-like sound absorbing member adhered on an inner surface of a tread portion along the tire circumferential direction. Cuts are formed on the band-like sound absorbing member mutually intersecting such that angles ?1, ?2 with regard to the tire width direction are within a range where 0°??1?90° or 0°??2?90°. The cuts are locally disposed in a region adjacent to an end portion on a vehicle inner side of the band-like sound absorbing member. A width of the placement region of the cuts is from 10% to 80% with regard to a width of the band-like sound absorbing member.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: March 2, 2021
    Inventors: Tatsuro Shinzawa, Takashi Hoshiba, Masahiro Naruse
  • Patent number: 10935467
    Abstract: Apparatus for checking a tyre having: a support plane; a deformation element to generate a deformed surface portion; a positioning actuator to move the deformation element; and a device with a camera, a first light source, a second light source, a processing unit and a drive and control unit. The processing unit is programmed to activate the positioning actuator to move the deformation element towards the tyre to generate a deformed surface portion. The drive and control unit is programmed to: actuate the first light source to illuminate the deformed surface portion of the tyre, the second light source being inactive during the deformation; control the camera to acquire a first image of the deformed surface portion; actuate the second light source to illuminate an undeformed surface portion of the tyre; and control the camera to acquire a second image of the undeformed surface portion.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: March 2, 2021
    Assignee: PIRELLI TYRE S.P.A
    Inventors: Alessandro Held, Vincenzo Boffa, Daniele Pecoraro, Valeriano Ballardini, Josef Engelsberger, Bernd Leitner
  • Patent number: 10889709
    Abstract: Provided is a thermoplastic resin composition which enables the production of an inner liner for pneumatic tires, said inner liner having excellent durability and being suppressed in deterioration of air permeation prevention properties due to repeated deformation. A thermoplastic resin composition which is composed of a continuous phase containing an ethylene/vinyl alcohol copolymer and a polyamide and a dispersed phase containing a halogenated isomonoolefin/para-alkyl styrene copolymer, and which is characterized in that an acyl glycerol that is composed of glycerol and a fatty acid having 8 or less carbon atoms is contained in an amount of 0.5-20 parts by mass per 100 parts by mass of the ethylene/vinyl alcohol copolymer.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: January 12, 2021
    Assignee: THE YOKOHAMA RUBBER CO., LTD.
    Inventor: Shun Sato
  • Patent number: 10864782
    Abstract: A noise damper, noise attenuation device, and tire and noise damper assembly are disclosed. The noise damper, noise attenuation device, and tire and noise damper assembly mitigate sound produced by a moving tire. The noise damper and noise attenuation device fit within a tire cavity and expand in reaction to a stimulus.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: December 15, 2020
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventors: Martin A. Yurjevich, Amy M. Randall
  • Patent number: 10821777
    Abstract: This invention relates to a tire with a tread of a rubber composition for promoting a combination of beneficial wet traction and reduced rolling resistance, while limiting any loss of winter traction at low temperatures. The tread rubber composition contains a combination of high and lower glass transition temperature (Tg) elastomers. Its reinforcing filler is primarily precipitated silica. The high Tg elastomer is comprised of synthetic high vinyl polybutadiene rubber and the lower Tg elastomer is comprised of at least one of natural and synthetic cis 1,4-polyisoprene rubber. The tread rubber composition may contain at least one of vegetable oil based rubber processing aid and traction promoting resin. The tread rubber composition is intended to be exclusive of styrene-containing elastomers.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: November 3, 2020
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Nihat Ali Isitman, Paul Harry Sandstrom, Luisa Fernanda Munoz Mejia
  • Patent number: 10800209
    Abstract: Provided is a tire which includes a circular tire frame formed from a resin material that contains a linear low-density polyethylene having a crystallization degree of from 110 J/g to 138 J.
    Type: Grant
    Filed: September 5, 2016
    Date of Patent: October 13, 2020
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Naoyuki Sone, Takahiro Suzuki, Atsushi Fukushima
  • Patent number: 10660398
    Abstract: A rubber member for laser bonding of the present invention containing a rubber ingredient and silica, wherein the silica has an average particle size of more than 50 nm and 120 nm or less, and the amount of the silica is 10 parts by mass to 50 parts by mass based on 100 parts by mass of the rubber ingredient, the rubber member has a laser light transmittance of 30% or more, provided that the laser light transmittance is a transmittance when the rubber member has a thickness of 2 mm and is irradiated with laser light having a wavelength of 808 nm.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: May 26, 2020
    Assignee: ASICS CORPORATION
    Inventors: Katsuhiro Imazato, Hironori Kitayama, Junichiro Tateishi, Sadaki Mori
  • Patent number: 10643763
    Abstract: The direct-current cable includes a conductive portion; and an insulating layer covering an outer periphery of the conductive portion, the insulating layer containing cross-linked base resin and inorganic filler, the base resin containing polyethylene, a BET specific surface area of the inorganic filler being greater than or equal to 5 m2/g and less than or equal to 150 m2/g, and a mean volume diameter of the inorganic filler being less than or equal to 1.0 ?m, the mass ratio of the inorganic filler with respect to the base resin being greater than or equal to 0.001 and less than or equal to 0.05, and the cross-linked base resin being cross-linked by a cross-linking agent containing organic peroxide.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: May 5, 2020
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Takanori Yamazaki, Yoshinao Murata, Tomohiko Katayama
  • Patent number: 10563047
    Abstract: A rubber composition contains at least: a diene rubber, a silica, a silane coupling agent having a mercapto group, a plasticizer, and an oil and/or a resin; from 50 to 200 parts by mass of the silica per 100 parts by mass of the diene rubber and from 2 to 20 mass % of the silane coupling agent having a mercapto group relative to the amount of the silica being blended; and a total amount of the plasticizer and the oil and/or the resin being 60 parts by mass or greater per 100 parts by mass of the diene rubber.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: February 18, 2020
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Naoki Kushida
  • Patent number: 10538047
    Abstract: A pneumatic tire manufacturing method is provided in which raw cover molding is suitably performed with no, or a minimal amount of, down-stitching in the manufacture of SOT-structure pneumatic tires; also provided is a pneumatic tire. This pneumatic tire manufacturing method involves a first cover molding step for molding a first cover having a sidewall, an inner lining, a ply, beads and a tread-side edge, a tread ring forming step for forming a tread ring having a breaker, a band and a tread center part, a shaping step for pressure-bonding the tread ring and the first cover to mold this to the shape of the raw cover, and a turn-up step for bonding the side wall to the lateral surface of the first cover, wherein the tread-side edge is formed in a position adjacent to the end of the tread center portion in the shaping step, and in the turn-up step, the tread-side edge and the tread center part are bonded together.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: January 21, 2020
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masayuki Sakamoto, Takamichi Sagawa
  • Patent number: 10532615
    Abstract: A pneumatic tire manufacturing method is provided in which raw cover molding is suitably performed with no, or a minimal amount of, down-stitching in the manufacture of SOT-structure pneumatic tires; also provided is a pneumatic tire. This pneumatic tire manufacturing method involves: a step in which a sidewall, an inner liner, and a ply are bonded on a first molding drum, a pair of beads is set, and the tread side part is formed on the side wall, forming a first cover; a step in which a breaker and band are bonded on a second molding drum and the tread center part is formed on the band, shaping the tread ring; a step in which the first cover is inserted inside of the tread ring and the first cover is inflated, bonding the tread ring and the first cover with pressure; and a step in which the sidewall is folded back towards the lateral surface of the inflated first cover and bonded to the lateral surface of the first cover, and the tread side part and the tread center part are bonded together.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: January 14, 2020
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masayuki Sakamoto, Takamichi Sagawa
  • Patent number: 10479880
    Abstract: Provided are a rubber composition for tires which achieves both abrasion resistance and processability while maintaining fuel economy, and a pneumatic tire including the rubber composition. A rubber composition for tires, containing an organosilicon compound represented by the average compositional formula (I) below having a ratio of the number of sulfur atoms to the number of silicon atoms of 1.0 to 1.5, wherein x represents the average number of sulfur atoms; m represents an integer of 6 to 12; and R1 to R6 are the same or different and each represent a C1-C6 alkyl or alkoxy group, at least one of R1 to R3 and at least one of R4 to R6 are the alkoxy groups, and two or more of the alkyl or alkoxy groups for R1 to R6 may be joined to form a ring.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: November 19, 2019
    Assignees: SUMITOMO RUBBER INDUSTRIES, LTD., SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Ryuichi Tokimune, Tsuyoshi Tsuchida, Ryota Kitago, Soh Ishino, Hiroyuki Kishimoto, Munenao Hirokami, Tetsuro Yamada
  • Patent number: 10472492
    Abstract: As an additive composition capable of improving the processability, the low loss property and the breaking resistance of a silica compounded rubber composition, and a rubber composition excellent in processability, low loss property and breaking resistance, this disclosure provides an additive composition for silica compounded rubber composition comprising a glycerin fatty acid ester, wherein: the glycerin fatty acid ester is an ester of a glycerin and two or more fatty acids, a fatty acid component which is the most among the two or more fatty acids constituting the glycerin fatty acid ester being 10 to 90 mass % of all fatty acids; and a monoester component is contained in an amount of 50 to 100 mass % in the glycerin fatty acid ester, and provides a rubber composition comprising a diene based rubber, a silica, and the additive composition for silica compounded rubber composition.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: November 12, 2019
    Assignees: BRIDGESTONE CORPORATION, KAO CORPORATION
    Inventors: Makiko Yonemoto, Tetsuo Takano, Motoi Konishi
  • Patent number: 10465016
    Abstract: Provided is a modified rubber for a tire (A) obtained by modifying a natural rubber and/or a synthetic rubber with a compound represented by formula (1): wherein X is an acid to form a salt with a guanidine site.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: November 5, 2019
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Tomoki Iwata, Haruka Sakai, Kazuyoshi Uera
  • Patent number: 10442259
    Abstract: Provided is a tire with self-inflation device. The tube is inserted inside the side portion where the extension and contraction movements of the tire are mostly occurring in order to further enhance the efficiency of the air supply to the tire cavity during driving. The air compressed towards the driving direction is injected to the tire cavity, and the air from the outside is charged to the tube due to the negative pressure formed in the tube located in the opposite side of driving. The durability is enhanced by reducing the exposed portion of the regulator.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: October 15, 2019
    Assignee: KUMHO TIRE CO., INC.
    Inventors: Seong Jong Park, Sang Do Na, Hyoung Seok Kim, In Chul Sung
  • Patent number: 10428205
    Abstract: The present invention is directed to a pneumatic tire having a tread comprising a radially outer cap layer and radially inner cap layer underlying the outer cap layer; the outer cap layer comprising a vulcanizable rubber composition comprising, based on 100 parts by weight of elastomer (phr), (A) from about 80 to about 20 phr of a solution polymerized styrene-butadiene rubber having a glass transition temperature (Tg) ranging from ?85° C. to ?50° C.; (B) from about 20 to about 80 phr of natural rubber; and (C) from 30 to 70 phr of a process oil; (D) from 70 to 150 phr of silica; wherein the weight ratio of silica to oil in the outer cap is less than 2.2; the inner cap layer comprising a vulcanizable rubber composition comprising: (i) from about 60 to about 40 phr of a solution polymerized styrene-butadiene rubber having a glass transition temperature (Tg) ranging from ?85° C. to ?50° C.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: October 1, 2019
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Nihat Ali Isitman, Georges Marcel Victor Thielen
  • Patent number: 10427464
    Abstract: Disclosed is a pneumatic tire that includes a tread having a pattern asymmetrical about the tire equatorial plane, and that may reduce cavity resonance and has good steering stability. A pneumatic tire includes a tread portion having a pair of tread halves, the tread halves extending between the tire equatorial plane and respective outer ends in the tire width direction of the tread portion, respectively, and having different negative ratios. The tread portion has short fibers fixed to at least a portion of a tire inner peripheral surface of the tread portion, and one of the tread halves with a higher negative ratio has a higher short-fiber fixation area ratio than that of the other tread half.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: October 1, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Toshiyuki Watanabe
  • Patent number: 10391818
    Abstract: Disclosed are a pneumatic tire that includes a tread having a pattern asymmetrical about the tire equatorial plane, and that is easy to produce and may surely reduce cavity resonance without lowering repair efficiency, and a method of producing the same. A pneumatic tire includes a tread portion having a pair of tread halves, the tread halves extending between the tire equatorial plane and respective outer ends in the tire width direction of the tread portion, respectively, and having different negative ratios. The tread portion has short fibers fixed to at least a portion of a tire inner peripheral surface of the tread portion, and one of the tread halves with a higher negative ratio has a lower short-fiber fixation area ratio than that of the other tread half.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: August 27, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Toshiyuki Watanabe
  • Patent number: 10377178
    Abstract: The present invention aims to provide a rubber composition for tires that can improve processability, crack resistance, ozone resistance, discoloration resistance, and tire appearance while maintaining a good balance between them, and also to provide a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for tires, containing: a rubber component; an antioxidant; and polyether, the rubber component having a combined content of polybutadiene rubber, natural rubber, and polyisoprene rubber of 80% by mass or more per 100% by mass of the rubber component, the rubber composition containing the antioxidant in an amount of 0.3 to 7.0 parts by mass per 100 parts by mass of the rubber component, the polyether having an average mass content of at least two consecutive polyethylene oxide units of 85% or less of the polyethylene oxide mass content of the polyether.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: August 13, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Ryuichi Tokimune, Naoya Kitamura, Kouji Kawaguchi, Naoya Hashimoto
  • Patent number: 10315468
    Abstract: The present invention provides a resonance noise reduction tire having a sound absorbing material mounted therein. The resonance noise reduction tire has a sound absorbing material which is mounted therein so as to be adhered to an inner liner formed inside the tire in a circumferential direction thereof. The sound absorbing material is adhered to the inner liner in the circumferential direction thereof, and is configured so that opposite ends thereof are adhered with being separated at a predetermined interval so as not to be abutted to each other.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: June 11, 2019
    Assignee: KUMHO TIRE CO., INC.
    Inventor: Jongsik Lee
  • Patent number: 10286737
    Abstract: A pneumatic tire of the present technology includes a tread portion, sidewall portions, bead portions, and a belt-shaped sound-absorbing member bonded to a region on a tire inner surface corresponding to the tread portion along the tire circumferential direction with an adhesive layer disposed between the tire inner surface and the sound-absorbing member. In such a pneumatic tire, an air agitation portion formed by an interruption in the sound-absorbing member is disposed in at least one location on the tire circumference.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: May 14, 2019
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Atsushi Tanno
  • Patent number: 10239355
    Abstract: A pneumatic tire includes a tread portion provided with a pair of central blocks arranged on both sides of a tire equator. Each of the central blocks includes a ground contacting face having an axially inner block edge facing the tire equator. The inner block edge extends in a V-shaped manner including a first inclined edge and a second inclined edge inclined in an opposite direction to the first inclined edge. The second inclined edge has a circumferential length shorter than a circumferential length of the first inclined edge. Each of the central blocks includes a first portion having the first inclined edge and a second portion having the second inclined edge. The second portion of the central block includes an end wall at an opposite side to the first portion. The end wall includes a stepwise wall extending in steps toward a groove bottom.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: March 26, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Mitsuru Sueyoshi, Akihiro Tamugi
  • Patent number: 10233313
    Abstract: The present technology provides a rubber composition including: (A) 100 parts by mass of a diene rubber; (B) from 5 to 200 parts by mass of silica; (C) from 1 to 20 mass % of a silane coupling agent relative to the silica; and (D) from 1 to 20 mass % of a glycerin mono-fatty acid ester relative to a mass of the silica (B), the glycerin mono-fatty acid ester being derived from a fatty acid having from 8 to 24 carbons; not less than 10 parts by mass out of 100 parts by mass of the diene rubber (A) having a hetero atom-containing functional group in a main chain and/or a terminal thereof.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: March 19, 2019
    Assignee: The Yokohama Rubber Co., LTD.
    Inventors: Shin Tsukishima, Miyuki Oka, Makoto Ashiura
  • Patent number: 10174185
    Abstract: Provided is a pneumatic tire including a base tread formed from a rubber composition that can highly improve fuel economy, wet grip performance, and abrasion resistance while maintaining the balance between them. The pneumatic tire includes a base tread formed from a rubber composition, the rubber composition containing predetermined amounts of an isoprene rubber, a specified hydrogenated terpene resin, and a specified carbon black.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: January 8, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Hirotoshi Otsuki
  • Patent number: 10167375
    Abstract: Provided is a rubber composition that, when adopted in a tire member such as a tread, displays low heat generation, high abrasion resistance, and high cut resistance, and enables excellent fatigue cracking resistance to be realized. The rubber composition contains carbon black that satisfies relationship formulae (1) to (3), shown below. 62.5×24M4DBP+hydrogen amount of carbon black?8337.5??(1) 24M4DBP?0.25×CTAB?62.5??(2) Dst+0.75×?D50?152.5??(3).
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: January 1, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Satoshi Hamatani
  • Patent number: 10160271
    Abstract: The pneumatic tire according to the present technology includes: one or more mechanical fastener members (A) disposed on the tire inner surface, which is one member of the pair of mechanical fasteners that can be separated into two members (A), (B) and that can be engaged with each other and which is secured to the tire cavity side, and the mechanical fastener members (A), (B) include a lock mechanism for locking the engagement.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: December 25, 2018
    Assignee: The Yokohama Rubber Co., LTD.
    Inventors: Atsushi Tanno, Hayato Sakamoto
  • Patent number: 9962995
    Abstract: The invention relates to a bicycle tire with high riding comfort. A damping rubber insert (3) made from a highly elastic rubber is arranged between the tire tread (2) and the tire carcass. Said damping rubber insert (3) has a material thickness of between 0.2 and 2 mm, and the carcass insert ends (10) extend to a maximum of the lateral edge areas of the tire tread (2).
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: May 8, 2018
    Assignee: Continental Reifen Deutschland GmbH
    Inventor: Christian Wurmbäck
  • Patent number: 9920189
    Abstract: Provided is a rubber composition for a tire tread containing: a diene rubber; silica in an amount of from 60 to 200 parts by mass per 100 parts by mass of the rubber; a polysiloxane represented by the average composition formula: (A)a(B)b(C)c(D)d(R1)eSiO(4-2a-b-c-d-e)/2; and an alkyl triethoxysilane having an alkyl group with from 7 to 20 carbon atoms. Also provided is a pneumatic tire using this rubber composition in the tire tread.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: March 20, 2018
    Assignee: The Yokohama Rubber Co., LTD.
    Inventors: Masaki Sato, Satoshi Mihara, Yoshihiro Goto