Patents Examined by Kendra Ly
  • Patent number: 11964519
    Abstract: The bead portion of the tire has an inner bead provided inside the tire width direction of a carcass ply and an outer bead provided outside the tire width direction of the carcass ply. The inner bead and the outer bead have a bead core portion including a bead cord formed of a metal material, and a filler portion provided outside the tire radial direction of the bead core portion and formed of a resin material. The inner bead and the outer bead sandwich a carcass ply.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: April 23, 2024
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Keiichi Hasegawa, Takayuki Kurata
  • Patent number: 11964516
    Abstract: A pneumatic tire including: a tread portion is in contact with a road surface; and a side wall portion is continuous to the tread portion and positioned inside a tire radial direction of the tread portion. A large region including a plurality of small regions having different arithmetic average roughness outside in a tire width direction is formed on outer surface of the side wall portion. A plurality of large regions are formed along a tire circumferential direction and the tire radial direction. In a boundary line of adjacent large region, small regions having different arithmetic average roughness come into contact with each other.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: April 23, 2024
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Naoko Ishikawa, Yasuo Himuro, Sotaro Iwabuchi
  • Patent number: 11964513
    Abstract: A tire includes: circumferential grooves along a circumferential direction of a tire; lateral grooves along the circumferential direction, each lateral groove having one end opened to a side of the tire and the other end communicated with the circumferential groove; and narrow grooves in blocks defined by the circumferential and lateral grooves, each narrow groove having one end opened to the side of the tire and the other end communicated with the circumferential groove. The tire includes a surface that projects, at a position more to one side or the other in the circumferential direction than the narrow groove that is opened to the tire side, further to an outer side in a tire width direction than a tire side shape to which the narrow groove is opened, and the surface extends in a radial direction from a ground contact end to include a groove bottom of the narrow groove.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: April 23, 2024
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Takashi Shimada
  • Patent number: 11964518
    Abstract: The bead portion of the pneumatic tire includes a bead structure having a bead core composed of a bead cord, and an annular plate which extends to the tire circumferential direction and is formed of a resin material. The annular plate has a planar first annular ring portion extending to the tire circumferential direction and a second annular ring portion positioned outside the tire radial direction of the first annular portion and extending to the tire circumferential direction, the first annular portion is provided along the bead structure, and the second annular portion is further inclined to the outside in tire width direction of the first annular portion.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: April 23, 2024
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Keiichi Hasegawa
  • Patent number: 11951773
    Abstract: Tread (1) for a tire of a heavy-duty vehicle, having a tread surface (10), this tread (1) comprising, near to each of its edges (11), a plurality of open wells (2) on the tread surface when new, these open wells (2) of depth Pmax being arranged circumferentially with a mean distance D between two consecutive open wells; each open well (2) being delimited by two main faces (21, 22) facing one another, this tread being such that each open well (2) is connected to at least one hidden cavity (32) formed within the tread, this hidden cavity (32) opening into a main face (21, 22) of said well.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: April 9, 2024
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventor: Frédéric Domprobst
  • Patent number: 11912071
    Abstract: In one aspect of a tire (10) of the present invention, a plurality of carcass plies (50a) include a first carcass ply (51). A first end portion (51a), which is a distal end portion of a portion of the first carcass ply folded around the bead core, is located outside in a tire radial direction from a position (WL) where a dimension in a tire width direction is maximum, and is located at a boundary portion (14) between a tread portion (11) and a sidewall portion (12), and in the portion located outside in the tire radial direction from the position where the dimension in the tire width direction is maximum, a dimension (T5) in a tire thickness direction between the portion of the first carcass ply folded around the bead core and an outer surface (12a) of the tire in the tire width direction is maximum between the first end portion and the outer surface of the tire in the tire width direction.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: February 27, 2024
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Junichi Saeki
  • Patent number: 11904640
    Abstract: A pneumatic tyre includes a pair of bead portions having respective bead cores therein, each bead core defining a core innermost end in a tyre radial direction, and an inner liner having an air-impermeable property and extending between the pair of bead portions, wherein in each of the pair of bead portions, the inner liner comprises an innermost end in the tyre radial direction located inwardly of the core innermost ends in the tyre radial direction, and the pair of bead portions has a bead base diameter being less than 99.7% of a rim diameter of a standard wheel rim on which the pneumatic tyre is to be mounted.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: February 20, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Kenji Nonaka
  • Patent number: 11897293
    Abstract: The environmental footprint of a tire for a construction plant vehicle is improved. To do so, the elastomer compounds derived from non-fossil resources represent a mass content greater than or equal to 65% of the total mass of the compounds of the tire, at least 75% of the total mass of the compounds of the tire is made up of elastomer compounds each of which has a viscoelastic loss, measured in terms of tan(?), less than or equal to 0.065, and an electrical resistivity greater than or equal to 1E+10 ‘?·cm.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: February 13, 2024
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Thierry Royer, Patricia Lagarde
  • Patent number: 11897292
    Abstract: A pneumatic includes a pair of sidewall portions. At least one of the sidewall portions is provided on an outer surface thereof with a first protruding portion arranged on an outer side in a tire radial direction and a second protruding portion arranged on a radially inner side. Both protruding portions are formed so as to be convex outward in a tire axial direction. The second protruding portion has a protruding apex surface formed of a different colored rubber material having a different color from an outer surface of the first protruding portion. A distance in the tire radial direction between an inner edge in the tire radial direction of the first protruding portion and an outer edge in the tire radial direction of the second protruding portion is 40% or more and 220% or less of a length in the tire radial direction of the second protruding portion.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: February 13, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Kazuhiro Nakano
  • Patent number: 11890898
    Abstract: A pneumatic tire is provided. A bead filler is disposed on an outer circumferential side of each bead core in bead portions, a side reinforcing layer having a crescent-shaped cross-section is disposed on an inner side in a tire width direction of a carcass layer in a sidewall portion, and as physical properties of a rubber that constitutes the side reinforcing layer and a rubber that constitutes the bead filler, a modulus at 100% elongation is in a range from 8.4 MPa to 10.2 MPa, a tan ? at 60° C. is in a range from 0.04 to 0.08, and JIS hardness at 20° C. is in the range from 75 to 79.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: February 6, 2024
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Ryohei Takemori
  • Patent number: 11858298
    Abstract: A tire includes: a pair of beads having bead cores and a bead filler extending to an outer side in a tire-radial direction of the bead core; a carcass ply extending from one of the bead core of one bead to the bead core of the other bead, and folded back around each of the bead cores; a first pad disposed at an outer side in a tire-width direction of a folding end of the carcass ply which is folded back; a second pad disposed at an outer side in the tire-width direction of the first pad; and rim strip rubber disposed at least at a part on an outer side in the tire-width direction of the second pad, in which an electronic component is provided to interpose the second pad and the rim strip rubber.
    Type: Grant
    Filed: October 27, 2021
    Date of Patent: January 2, 2024
    Assignee: Toyo Tire Corporation
    Inventor: Harunobu Suita
  • Patent number: 11833865
    Abstract: In a state in which the pneumatic tire is mounted on a regular rim and inflated to 5% of a specified internal pressure, a tread width is TW, a total tire width is SW in a tire meridian cross-sectional view, a relationship of 0.80?TW/SW?0.95 is satisfied, a ground contact width at a load of 100% of a maximum load capacity is CW100, a ground contact width at a load of 70% of the maximum load capacity is CW70, and a relationship of 1.04?CW100/CW70?1.15 is satisfied.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: December 5, 2023
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Hiroshi Fujii
  • Patent number: 11833861
    Abstract: A tire includes a pair of beads and a plurality of body plies extending between the pair of beads, including at least a first body ply and a second body ply. The first body ply wraps around each of the pair of beads, and has a first pair of turn up portions having a first height. The second body ply wraps around each of the pair of beads, and has a second pair of turn up portions having a second height greater than the first height. Each of the second pair of turn up portions is axially inside each of the first turn up portions. The tire also includes a circumferential belt disposed radially above the plurality of body plies, a circumferential tread disposed radially above the circumferential belt, and a pair of sidewalls extending between the pair of beads and the circumferential tread. The tire also has a pair of stabilizer ply inserts, including a first stabilizer ply insert and a second stabilizer ply insert.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: December 5, 2023
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventors: Kevin J. Kosmac, Austin J. Fischer, William H. Durivage
  • Patent number: 11827056
    Abstract: Pneumatic tires include a tire body having a pair of tire sidewalls, a tread wall extending between the tire sidewalls and a tread portion on the tread wall. The tread portion may include alternating first and second tread patterns around the circumference of the tread wall. Each of the first and second tread patterns may have a main land protruding from the tread wall on a first side of a tread equator dividing the tread portion into equal first and second halves. A main land sidewall portion may extend from the main land and protruding from a first one of the pair of tire sidewalls. A stepped land may protrude from the tread wall on a second side of the tread equator. A stepped land sidewall portion may extend from the stepped land and protruding from a second one of the pair of tire sidewalls.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: November 28, 2023
    Inventor: Christopher A. Branton
  • Patent number: 11827060
    Abstract: A heavy load tire includes: a plurality of circumferential grooves extending along a tire circumferential direction; a plurality of lateral grooves extending along a tire width direction and formed in a direction crossing the circumferential grooves; and a plurality of blocks partitioned by the circumferential grooves and the lateral grooves. On a whole surface of one end portion in the tire circumferential direction of a center block formed in a center area among the plurality of blocks, an inclined portion inclined inward in a tire radial direction toward the end portion is formed.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: November 28, 2023
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Masakazu Sakamoto, Tomoo Hasegawa, Hiroaki Ebata
  • Patent number: 11820176
    Abstract: A pneumatic tyre having an equatorial plane for an agricultural machine includes a tread having first lugs extending from the first lateral tread edge toward the equatorial plane, having an arcuate leading edge that arcs from the first lateral tread edge to an axial leading nose edge next to a substantially circumferential inner nose edge, and an arcuate trailing edge that arcs from the first lateral tread edge to the substantially circumferential inner nose edge; and second lugs extending from the second lateral tread edge toward the inner equatorial plane, having an arcuate leading edge that arcs from the second lateral tread edge to an axial leading nose edge next to a substantially circumferential inner nose edge, and an arcuate trailing edge that arcs from the second lateral tread edge to the substantially circumferential inner nose edge.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: November 21, 2023
    Assignee: Apollo Tyres Global R&D B. V.
    Inventors: Mark Ten Dam, Bert Kregmeier, Dally Gopinath
  • Patent number: 11813894
    Abstract: A tire includes a narrow shallow grooved region on a land portion defined by a circumferential main groove. The narrow shallow grooved region includes a plurality of narrow shallow grooves that are not open to the circumferential main groove. A ratio of a total area of the narrow shallow grooved region to a ground contact area of the land portion is not less than 0.05 and not greater than 0.60.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: November 14, 2023
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Ryota Gunji
  • Patent number: 11807055
    Abstract: A tire 2 has a nominal aspect ratio of 65% or less. The tire 2 includes a tread 4 and a band 34. The band 34 includes a full band 42 and a pair of edge bands 44 located outward of ends of the full band 42 in a radial direction. A narrow groove 56 is formed on a shoulder land portion 54s of the tread 4. The narrow groove 56 includes an inner groove wall 62u and an outer groove wall 62s. The inner groove wall 62u includes an inner recess portion 64 recessed inward in the axial direction, on a groove bottom side. The outer groove wall 62s includes an outer recess portion 66 recessed outward in the axial direction, on the groove bottom side.
    Type: Grant
    Filed: February 4, 2022
    Date of Patent: November 7, 2023
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Daisuke Todoroki
  • Patent number: 11794530
    Abstract: A tire with in-situ generated intrinsic puncture sealant layers and intrinsic noise damper comprising a supporting tire carcass having one or more layers of ply, an outer circumferential tread, and a radially inner layer, a pair of beads, sidewalls extending radially inward from the axial outer edges of a tread portion to join the respective beads, a sealant comprising at least one layer of sealant, disposed radially inwardly from said radially inner layer of said tire carcass, an intrinsic cellular noise damper as the innermost layer adjacent to the sealant, wherein said noise damper has a density less than 1.3 g/cm3; and wherein said sealant provides self-sealing properties to the tire.
    Type: Grant
    Filed: February 15, 2021
    Date of Patent: October 24, 2023
    Assignee: Triangle Tyre Co. Ltd.
    Inventors: Ramendra Nath Majumdar, Wang Dapeng
  • Patent number: 11760135
    Abstract: Provided is a tire structure technology with which sufficient reading performance can be maintained even when a tire having an electronic component provided therein is caused to drive under high speed and severe handling. A pneumatic tire in which an electronic component is provided farther outward in a tire axial direction than a carcass, and in which the tan ?(1)50° C. and tan ?(1)150° C. of a first rubber member, and the tan ?(2)50° C. and tan ?(2)150° C. of a second rubber member, satisfy the following formula, where the first rubber member is a tire rubber member that has the greatest E* at 50° C. among tire rubber members positioned outward from the electronic component in the tire axial direction, and the second rubber member is a tire rubber member that has the greatest E* at 50° C. among tire rubber members positioned inward from the electronic component in the tire axial direction. (tan ?(1)50° C.+tan ?(2)50° C.)?(tan ?(1)150° C.+tan ?(2)150° C.)?0.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: September 19, 2023
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Takuma Yoshizumi, Hiroki Nakajima