Patents Examined by Justin R Fischer
  • Pneumatic tire and crosslinked rubber composition
    Patent number: 11458767
    Abstract: A pneumatic tire includes bead cores, a carcass ply, an inner liner and the tread, and the crosslinked rubber composition, of the present invention, wherein the tread and the crosslinked rubber composition have a volume of the low density region of 35% or more at elongation by an applied stress of 1.5 MPa, a volume of the void portion of 7.5 or less at elongation by an applied stress of 3.0 MPa and a ratio of 40% by mass or more of a component having a weight-average molecular weight of not less than 1,000,000 in a molecular weight distribution measured by gel permeation chromatography are excellent in abrasion resistance.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: October 4, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Ryo Mashita, Hiroyuki Kishimoto, Ryota Kitago
  • Pneumatic tire
    Patent number: 11453252
    Abstract: The pneumatic tire includes: a pair of bead portions; a pair of sidewall portions; a tread portion; a carcass; a reinforcing rubber layer, a tire widthwise cross-section of the reinforcing rubber layer having a substantially crescent shape; an inclined belt including at least one inclined belt layer formed by a plurality of cords extending at an inclination to a tire circumferential direction and covered with rubber; and an inner liner provided on an inner peripheral surface of a tire body in at least the tread portion. In a tire widthwise cross-sectional view, an edge of the inner liner is positioned farther outward in the tire radial direction than a tire maximum width position of the pneumatic tire and farther inward in the tire radial direction than a perpendicular from a tire widthwise edge of the inclined belt to the inner peripheral surface of the tire body.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: September 27, 2022
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Keita Yumii
  • Pneumatic tire
    Patent number: 11453253
    Abstract: In a pneumatic tire, first and second sound absorbing members are adhered to an inner surface of a tread, have a total volume ranging from 10% to 40% of a capacity of a tire cavity, and are separated from each other by 60% of the width of a center land. The first sound absorbing member is on one side in a lateral direction with respect to a position of 40% of a width of the center land from one end of the center land on one side in the lateral direction to the other side in the lateral direction. The second sound absorbing member is on the other side in the lateral direction with respect to a position of 40% of the width of the center land from the other end of the center land in the lateral direction to the one side in the lateral direction.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: September 27, 2022
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Tatsuro Shinzawa
  • Pneumatic tire and crosslinked rubber composition
    Patent number: 11440349
    Abstract: The pneumatic tire of the present invention characterized by comprising: bead cores, a carcass ply, an inner liner and a tread having a volume of the low density region of 35% or more, at elongation by an applied stress of 1.5 MPa, a volume of the void portion of 7.5% or less at elongation by an applied stress of 3.0 MPa and a glass transition temperature of ?20° C. or lower, and the crosslinked rubber composition of the present invention having a volume of the low density region of 35% or more at elongation by an applied stress of 1.5 MPa, a volume of the void portion of 7.5 or less at elongation by an applied stress of 3.0 MPa and a glass transition temperature of ?20° C. or lower are excellent in abrasion resistance.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: September 13, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Ryo Mashita, Hiroyuki Kishimoto, Ryota Kitago
  • Pneumatic tire
    Patent number: 11440354
    Abstract: A pneumatic tire includes: sidewall portions positioned on both sides in a tire lateral direction; bead portions positioned toward the inside of the respective sidewall portions in a tire radial direction; a plurality of protectors extending in a tire circumferential direction and projecting from a surface of the sidewall portion in the sidewall portion of at least one of the sidewall portions, provided within a range of from 30% to 70% of a tire cross-sectional height from an inner end of the bead portions in the tire radial direction toward an outer side in the tire radial direction; and a plurality of helical reinforcing members each formed in a helical shape and disposed inside the plurality of protectors, the helical reinforcing members each having a central axis of the helical shape, the central axis extending in the tire circumferential direction.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: September 13, 2022
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Masashi Tamura
  • Pneumatic tire
    Patent number: 11433715
    Abstract: A pneumatic tire includes a plurality of protrusion portions extending along a tire side surface of a tire side portion in a direction that intersects a tire circumferential direction and a tire radial direction; the plurality of protrusion portions each including an intermediate portion in an extension direction that includes a highest position of projection height from the tire side surface, and an end portion on either side of the intermediate portion in the extension direction that includes a lowest position of projection height from the tire side surface. The highest position of projection height of the intermediate portion is in a range of 20% of a tire cross-sectional height from a tire maximum width position to an inner side and an outer side in the tire radial direction, and a ratio of a total width SW and an outer diameter OD satisfies a relationship of SW/OD?0.3.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: September 6, 2022
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Yuji Kodama
  • Pneumatic tire and crosslinked rubber composition
    Patent number: 11427029
    Abstract: A pneumatic tire includes bead cores, a carcass ply, an inner liner, and a tread having a volume of the low density region of 35% or more at elongation by an applied stress of 1.5 MPa, a volume of the void portion of 7.5% or less at elongation by an applied stress of 3.0 MPa and a hardness of 65 or more and the crosslinked rubber composition of the present invention having a volume of the low density region of 35% or more at elongation by an applied stress of 1.5 MPa, a volume of the void portion of 7.5 or less at elongation by an applied stress of 3.0 MPa and a hardness of 65 or more are excellent in abrasion resistance.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: August 30, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Ryo Mashita, Hiroyuki Kishimoto, Ryota Kitago
  • Bicycle and tire structure
    Patent number: 11420473
    Abstract: A tire structure disposed at a rim is provided. The tire structure includes a tire body, a flexible sealing member and a nozzle. The tire body is ring-shaped and includes a groove and two beads. The flexible sealing member is connected to the tire body to form an inflating space with the groove, and the flexible sealing member includes a through hole. The nozzle is disposed at the flexible sealing member. The nozzle includes a base and a valve stem. The base includes a screw hole and is disposed at a far side of the flexible sealing member. The screw hole corresponds to the through hole. The valve stem includes a fastening end and an inflating channel. The fastening end is configured to insert into the screw hole, and the inflating channel is configured to allow the gas to pass therethrough.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: August 23, 2022
    Assignee: GIANT MANUFACTURING CO., LTD.
    Inventors: Wei-Han Tseng, Che-Wei Hsu
  • Pneumatic tire
    Patent number: 11420484
    Abstract: A pneumatic tire includes a plurality of protrusion portions extending along a tire side surface of a tire side portion in a direction that intersects a tire circumferential direction and a tire radial direction. Each of the plurality of protrusion portions includes an intermediate portion and an end portion. The intermediate portion in an extension direction has a highest position of a projection height from the tire side surface. The end portion is provided on either end of the intermediate portion in the extension direction, and has a lowest position of the projection height from the tire side surface. The highest position of the projection height of the intermediate portion is disposed in a range of 20% of a tire cross-sectional height on an inner side and an outer side in the tire radial direction from a tire maximum width position.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: August 23, 2022
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Yuji Kodama
  • Tire
    Patent number: 11400758
    Abstract: A tire with a tread reinforcing layer that includes a ply reinforcing structure formed by winding a cord-embedded rubber tape circumferentially of the tire. The ply reinforcing structure includes first oblique segments and second oblique segments which intersect with each other to form a mesh structure having rhombic spaces. The circumferential lengths of the rhombic spaces are less than ? times the maximum circumferential length of the ground contacting patch of the tire in its normally loaded state.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: August 2, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Tomoki Kato
  • Tire
    Patent number: 11400769
    Abstract: A tire includes tire frame members including bead cores, a bead filler, an inner liner, side-wall rubber and cushion rubber; and an electronic unit provided at an interface of tire frame members, the tire further including: a carcass ply which extends from one bead core to another bead core and includes a rubber-coated reinforcement cord, a belt disposed on the outer side in the tire-radial direction of the carcass ply, in which the cushion rubber is disposed at an end of the carcass ply or at an end of the belt, in which the side-wall rubber is disposed on an outer side in a tire-width direction of the cushion rubber, and in which the electronic unit is disposed between the cushion rubber, and the bead filler or the side-wall rubber.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: August 2, 2022
    Assignee: Toyo Tire Corporation
    Inventor: Kazuki Ohta
  • Pneumatic tire
    Patent number: 11400768
    Abstract: A pneumatic tire mountable on a 15° tapered specified rim, the pneumatic tire including a bead portion, bead core, a carcass, a steel cord reinforcing layer, and a bead rubber layer. A distance from a second line segment to a third line segment is from 4 mm to 8 mm, and a ratio R2/R1 is from 0.935 to 0.975, wherein R2 is a tire radius at a bead toe of a bead base portion and R1 is a tire radius at a bead heel.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: August 2, 2022
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Takayuki Suzuki
  • Tire
    Patent number: 11400761
    Abstract: A tire includes a projection disposed between a tread end and a maximum width position on a side surface. The projection includes a groove that extends through an outer side surface in a circumferential direction. The tire is preferably produced by using a mold which has a first part and a second part and in which a dividing line between the first and the second parts extends in the circumferential direction and comes into contact with the side surface, and the groove preferably overlaps an imaginary line, on the side surface, corresponding to the dividing line. A width of the groove is preferably not less than 1.5 mm and preferably not greater than 3.0 mm.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: August 2, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Ryoji Notsu
  • Heavy duty pneumatic tire
    Patent number: 11400767
    Abstract: A tire 32 includes: a pair of beads 40; a carcass ply 82 having a ply main body 84 and turned-up portions 86; and a pair of fillers 52 that are located outward of the turned-up portions 86 in the axial direction and that include metal cords. In a radial direction, a first end 92 of each filler 52 is located inward of a bead base line, and a second end 94 of each filler 52 is located between an end 88 of the turned-up portion 86 and the bead base line. A recess 96 is provided on a zone of each side surface 34 of the tire 32 between a maximum width position and the end 88 of the turned-up portion 86.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: August 2, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Taro Okabe, Satoshi Tanaka, Yasushi Shinmura
  • Heavy duty pneumatic tire
    Patent number: 11390120
    Abstract: A tire 2 has a nominal cross-sectional width not less than 355 mm and a nominal aspect ratio not greater than 70%, and includes a tread 8 having a tread surface 4 that comes into contact with a road surface, and a belt 18 located radially inward of the tread 8. A ratio of a width of the tread surface 4 to a camber amount of the tread surface 4 at an end of the tread surface 4 is not less than 20 and not greater than 30. Regarding a thickness from the belt 18 to the tread surface 4, a ratio of a thickness at an equator plane to a thickness at an end 36 of the belt 18 is not less than 0.95 and not greater than 1.05.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: July 19, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Tetsuya Kitano
  • Crown architecture of an electrically conductive tire for a civil engineering vehicle
    Patent number: 11383561
    Abstract: The compromise between the performance aspects of endurance and wear of a tyre for construction plant vehicles is improved, while limiting the mean operating temperature thereof to an appropriate level of around 100° C., and while ensuring its capacity of being electrically conductive, that is to say of discharging electrostatic charges that have built up during running. For this purpose, the tread comprises three parts: two electrically conductive tread wings and a central portion that is optimized in terms of hysteresis and is therefore not electrically conductive. The pathway for discharging electrostatic charges connects the tread wings to the rim, passing via electrically conductive edging rubbers positioned at the axial ends of the layers of the crown.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: July 12, 2022
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventor: Thierry Royer
  • Pneumatic tire, pneumatic-tire mold, two-dimensional-code engraved-mark testing method, and pneumatic-tire manufacturing method
    Patent number: 11364749
    Abstract: A tire side surface of a pneumatic tire includes a two-dimensional code in which a dot pattern is formed by two types of gray scale elements formed identifiable from each other by recesses and protrusions of the tire side surface, or a predetermined two-dimensional code arrangement region. The tire side surface further includes at least two marks formed in a protruded shape or a recessed shape, and the two marks are disposed on an identical position in a first direction of a tire radial direction and a tire circumferential direction and disposed separated from each other at different positions in a second direction of the tire radial direction and the tire circumferential direction to sandwich an outer edge of the two-dimensional code or the predetermined two-dimensional code arrangement region from the opposite sides in at least one of the tire radial direction or the tire circumferential direction.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: June 21, 2022
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Atsuya Hatano
  • Pneumatic tire
    Patent number: 11364751
    Abstract: In a pneumatic tire mountable on a 5°-tapered rim, a bottom of a bead core is inclined from 0°-5° in a direction in which the bottom diverges toward an outer side in a radial direction as the bottom extends from an inner side in the width direction toward an outer side in the width direction. Each bead portion includes a base, a toe, and a heel. The base is inclined from 8°-12° in a direction in which the bead base portion diverges toward the outer side in the radial direction as the base extends from the inner side toward the outer side in the width direction. The heel has a radius of curvature from 25-30 mm. A rim cushion rubber has a modulus at 100% elongation within a range from 5.0-8.0 MPa. The toe has a displacement between before and after mounting on the rim from 9.0-13.5 mm.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: June 21, 2022
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Hiroaki Honda
  • Bias tire
    Patent number: 11358413
    Abstract: A bias tire includes two or more carcass layers, at least one belt disposed outward from the carcass layers in a tire radial direction, a reinforcing rubber layer disposed between carcass plies included in a carcass layer of the carcass layers. A belt width of a widest belt with the widest width of the belts is 110% or more and 150% or less of a tread developed width, and a position of an upper end portion of the reinforcing rubber layer located outward in the tire radial direction is apart 3 mm or more from an end portion of the widest belt.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: June 14, 2022
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Takamasa Motomitsu
  • Pneumatic tire
    Patent number: 11331952
    Abstract: A pneumatic tire comprises a mesh reinforcing layer formed from a tape wound circumferentially of the tire plural turns while repeating a zigzag unit comprising two inclined portion so that a number N of the repeated zigzag units are arranged while shifting in the tire circumferential direction and partly overlapping with each other. The amount of positional shift between the circumferentially adjacent zigzag units is in a range from 0.7 to 1.3 times a value of 360/N in terms of the angle ? around the tire rotational axis.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: May 17, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Wataru Isaka