Patents Assigned to Sumitomo Rubber Industries, Ltd.
  • Golf ball
    Patent number: 11873416
    Abstract: An object of the present invention is to provide a golf ball having excellent spin performance on approach shots under a wet condition and excellent spin performance on approach shots under a condition that there is grass between the golf ball and the club face. The present invention provides a golf ball comprising a golf ball body and a paint film composed of at least one layer and formed on a surface of the golf ball body, wherein an outermost layer of the paint film located at the outermost layer of the golf ball contains a base resin and a porous filler, the base resin contains a polyurethane obtained by a reaction between a polyisocyanate composition and a polyol composition, and the porous filler contains SiO2 in an amount of 50 mass % or more as a constituent component.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: January 16, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Kuniyasu Horiuchi, Toshiyuki Tarao, Kazuya Kamino, Hidetaka Inoue
  • Tire
    Patent number: 11872845
    Abstract: A tire includes a tread portion including four circumferential grooves extending continuously in the tire circumferential direction and five land portions divided by the four circumferential grooves. The five land portions include a first middle land portion located between a first tread edge and a tire equator. The first middle land portion is provided with first middle sipes inclined with respect to a tire axial direction and fully traversing the first middle land portion in the tire axial direction. Each first middle sipe includes a pair of sipe edges, and at least one of the pair of sipe edges opens at the ground contact surface via a chamfer portion over an entire length thereof. The chamfer portion has a chamfer width increasing continuously from a first longitudinal edge to a second longitudinal edge of the first middle land portion.
    Type: Grant
    Filed: September 12, 2022
    Date of Patent: January 16, 2024
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Ryota Ikeda
  • GOLF CLUB HEAD
    Publication number: 20240009523
    Abstract: An iron type golf club head includes a hitting face including a plurality of score lines, a sole surface, a leading edge that constitutes a front edge of the sole surface, a trailing edge that constitutes a rear edge of the sole surface, and a score line center position that is determined based on the score lines. The sole surface includes a ridgeline that extends from a toe side to a heel side, and an additional surface that extends to traverse the ridgeline. The additional surface is a flat surface or a recessed surface. The additional surface may include a heel part that is located on the heel side with respect to the score line center position, and a toe part that is located on the toe side with respect to the score line center position.
    Type: Application
    Filed: July 5, 2023
    Publication date: January 11, 2024
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventor: Yuki SHIMAHARA
  • TIRE
    Publication number: 20240010033
    Abstract: A pneumatic tire (1) includes: a tread portion (2) including a land portion (24) divided by a plurality of main grooves (22) formed on a tread surface (21); and a mount member (10) which is provided on a tire inner surface (7A) on an inner side of the tread portion (2), and to which electric equipment can be attached. The mount member (10) is disposed on the tire inner surface (7A) at a position corresponding to the land portion (24). Complex elastic modulus E*1 of a rubber composition constituting the mount member (10) is larger than complex elastic modulus E*2 of a rubber composition constituting the tread portion (2).
    Type: Application
    Filed: September 17, 2021
    Publication date: January 11, 2024
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Naoya SOFUE, Takuma YOSHIZUMI
  • ELASTOMER COMPOSITION AND TIRE
    Publication number: 20240010821
    Abstract: An elastomer composition containing a styrene-based elastomer, and a temperature-responsive resin that changes its hydrophilicity with changes in temperature, the elastomer composition satisfying the following relationship at two given temperatures differing by at least 10° C.: (Contact angle at lower temperature)/(Contact angle at higher temperature)?0.90, the lower temperature being lower than 25° C.
    Type: Application
    Filed: November 1, 2021
    Publication date: January 11, 2024
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Haruko SAWAKI, Tomohiro AKAHORI
  • Rubber composition for tires and tire
    Patent number: 11866586
    Abstract: The present disclosure aims to provide a tire rubber composition and a tire which have good wet grip performance and an excellent ability to reduce deterioration of wet grip performance and abrasion resistance over time. The present disclosure relates to a tire rubber composition which contains one or more rubber components having a combined content of styrene-butadiene rubber and polybutadiene of 90% by mass or more, one or more fillers, and one or more vulcanizing agents, the rubber composition as a whole having a vinyl content of 20 mol % or higher and a trans content of 50 mol % or higher, each based on 100 mol % of the combined amount of the butadiene-based structural units in the butadiene portion of the styrene-butadiene rubber and the polybutadiene.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: January 9, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Ryoji Matsui
  • Tire mold and production method for tire using a tire mold
    Patent number: 11865800
    Abstract: A mold includes a tread-forming surface to shape a tread surface. The tread-forming surface can include projections to form circumferential grooves, and land surface-forming portions to form land surfaces. Among the three land surface-forming portions aligned in an axial direction with the projections interposed therebetween, the land surface-forming portion located between the two projections can be a curved land surface-forming portion. A contour of the curved land surface-forming portion can be represented by one or more circular arcs. A boundary between a reference side surface of each projection and the curved land surface-forming portion can be a reference boundary point, and the reference boundary point can be located inward of a reference forming surface of the tread-forming surface.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: January 9, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Rena Onitsuka, Ryuhei Sanae
  • Golf club grip and golf club
    Patent number: 11865419
    Abstract: A golf club grip having great anti-slipping performance in the material itself constituting the grip includes an outermost surface layer, wherein at least a part of the outermost surface layer is formed from a rubber composition containing (A) a base rubber and (B) a tackifier having a softening point in a range of from 5° C. to 120° C., and a portion formed from the rubber composition has a loss tangent (tan?) (30° C., 10 Hz) and a complex elastic modulus (E*) (30° C., 10 Hz) satisfying a relationship of 0.070?tan?/(E*)02?0.098.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: January 9, 2024
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Sho Goji, Kazuyoshi Shiga
  • Motorcycle tire
    Patent number: 11865867
    Abstract: A motorcycle tire includes a tread rubber that includes a base rubber layer and a cap rubber layer disposed outward in the tire radial direction of the base rubber layer to form a ground contact surface. The cap rubber layer includes a crown cap portion disposed in a middle region in the tire axial direction of a tread portion and a pair of shoulder cap portions disposed in both sides in the tire axial direction of the crown cap portion. The crown cap portion has a loss tangent tan ?c, the shoulder cap portions have a loss tangent tan ?s, and the base rubber layer has a loss tangent tan ?b, wherein the loss tangents tan ?c, tan ?s and tan ?b satisfy the following equation (1): tan ?c<tan ?s?tan ?b . . . (1).
    Type: Grant
    Filed: March 10, 2022
    Date of Patent: January 9, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Kenji Nonaka
  • Tire
    Patent number: 11865871
    Abstract: A tire has a tread portion provided with three or four circumferential grooves including a shoulder circumferential groove to form a shoulder land region and a middle land region. The middle land region is provided with a middle circumferential sipe and middle lateral sipes. The shoulder land region is provided with shoulder lateral grooves extending from the shoulder circumferential groove to a tread edge, and shoulder lateral sipes extending from the shoulder circumferential groove and terminated without reaching the tread edge.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: January 9, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Natsumi Funase, Kozo Yoshimura
  • Golf club head
    Patent number: 11865418
    Abstract: A putter-type golf club head, when oriented in a reference position, includes a main body, a weight insert, a center of gravity CG with a center of gravity depth CGD, a golf club head length L from a forwardmost extent of the golf club head to its rearwardmost extent, and a ratio of CGD/L no more than 0.30. The main body includes a front portion having a face defining a face plane, a rear portion extending rearwardly from the front portion, a heel, and a toe opposite the heel. The weight insert, which is denser than the main body, includes an insert CG that is located rearwardly from the face plane by a distance no greater than 1.0 cm.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: January 9, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Jacob Lambeth, Phillip C. Seagram, Dustin Brekke
  • TWO-WHEELED VEHICLE TIRE FOR RUNNING ON ROUGH TERRAIN
    Publication number: 20240001717
    Abstract: A two-wheeled vehicle tire for running on rough terrain includes a tread portion having a designated rotation direction. The tread portion includes at least one first block. The first block includes a pair of block pieces adjacent to each other in the tire axial direction, and a tie-bar connecting the block pieces. The tie-bar has an outer surface in the tire radial direction, and the outer surface of the tie-bar has a height increasing toward the trailing side in the rotation direction. The pair of block pieces each has an outer surface in the tire radial direction, and the outer surface of each block piece has an axially extending leading edge located on the leading side thereof. The leading edge of each block piece is inclined toward the trailing side in the rotation direction from the end on the tie-bar side outwardly in a block-width direction.
    Type: Application
    Filed: June 16, 2023
    Publication date: January 4, 2024
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventor: Yukiko HINAMI
  • TWO-WHEELED VEHICLE TIRE FOR RUNNING ON ROUGH TERRAIN
    Publication number: 20240001718
    Abstract: A two-wheeled vehicle tire for running on rough terrain, the tire comprising a tread portion. The tread portion comprises a plurality of middle blocks located between a tire equator and a tread edge. The plurality of middle blocks comprises at least one first middle block having an outer surface in a tire radial direction, and at least one second middle block having an outer surface in the tire radial direction whose area is larger than an area of the outer surface of the at least one first middle block. The outer surface in the tire radial direction of the at least one first middle block is not provided with sipes. The outer surface of the at least one second middle block is provided with at least one sipe.
    Type: Application
    Filed: June 16, 2023
    Publication date: January 4, 2024
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventor: Yukiko HINAMI
  • SHEET CONVEYANCE ROLLER RUBBER COMPOSITION AND SHEET CONVEYANCE ROLLER
    Publication number: 20240002648
    Abstract: An object of the present disclosure is to provide a rubber composition from which a sheet conveyance roller having an excellent friction coefficient can be produced. The present disclosure provides a sheet conveyance roller rubber composition containing a base rubber and a petroleum resin, wherein the base rubber contains an ethylene-?-olefin copolymer. The sheet conveyance roller rubber composition is preferably obtained by kneading the petroleum resin and the base rubber containing the ethylene-?-olefin copolymer at a temperature equal to or higher than a softening point of the petroleum resin.
    Type: Application
    Filed: June 15, 2023
    Publication date: January 4, 2024
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Masashi HAMAKUBO, Ryosuke FUJII
  • Tire
    Patent number: 11858296
    Abstract: A tire that can achieve both desired visibility and design properties of a mark provided on a sidewall portion is provided. A tire has a mark provided on a surface of a sidewall portion so as to be raised from the surface. The mark includes a curved surface portion curved so as to project in a direction substantially perpendicular to the surface of the sidewall portion, and a flat surface portion provided on at least one side in a tire circumferential direction of the curved surface portion, and a raised height h of the flat surface portion from the surface gradually decreases with increasing distance in the tire circumferential direction from the curved surface portion.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: January 2, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Koichi Nakajima
  • Golf club head with textured striking face
    Patent number: 11857849
    Abstract: A golf club head includes a striking face with a plurality of scorelines. A first virtual vertical plane is perpendicular to the striking face and passes through a toe-wardmost extent of the scorelines, and a second virtual vertical plane is parallel to the first virtual vertical plane and passes through a heel-wardmost extent of the scorelines. A central region bounded by the first virtual vertical plane, the second virtual vertical plane, and a striking face periphery has a first average surface roughness Ra1 of between about 40 ?in and about 180 ?in. And a majority of a toe region bounded by the first vertical plane and the striking face periphery is textured to have a second average surface roughness Ra2 no less than 1.5 times Ra1.
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: January 2, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Patrick Ripp, Jeff D. Brunski
  • TIRE
    Publication number: 20230415515
    Abstract: Provided is a tire with a tread portion having a circumferential groove communicating in the circumferential direction, wherein the cap rubber layer forming the tread portion is formed from a rubber composition which contains 40 parts by mass or more and 80 parts by mass or less of styrene-butadiene rubber (SBR) having a styrene content of 25% by mass or less, and 60 parts by mass or more of a filler with respect to 100 parts by mass of the rubber component, and has a loss tangent 10° C. tan ? of less than 0.28, and a glass transition temperature Tg (° C.) of ?40° C. or lower; and the glass transition temperature Tg (° C.) and the depth G (mm) of the circumferential groove satisfy Tg??0.5×G?35; and an object of the present invention is to improve off-road performance of a tire.
    Type: Application
    Filed: June 20, 2023
    Publication date: December 28, 2023
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Kazuchika SUGAHARA
  • HEAVY DUTY TIRE
    Publication number: 20230415521
    Abstract: A tire 2 includes a pair of beads 10, a carcass 12, a pair of steel reinforcing layers 20, a pair of fiber reinforcing layers 26, and a tag member 28. Each bead 10 includes an apex 40. A carcass ply 48 included in the carcass 12 includes a ply body 50 and a pair of turned-up portions 52. An outer end PR1 of each fiber reinforcing layer 26 is located between an end PF of the turned-up portion 52 and an outer end PA of the apex 40. An RFID tag 62 of the tag member 28 is located between the end PF of the turned-up portion 52 and the outer end PA of the apex 40. In the fiber reinforcing layer 26, an outer end 60f of a second reinforcing ply 60 is located radially outward of an outer end 58f of a first reinforcing ply 58.
    Type: Application
    Filed: June 14, 2023
    Publication date: December 28, 2023
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Masayuki YOSHINO
  • Head for a golf club
    Patent number: D1010041
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: January 2, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Darius Cyrulik
  • Tire for automobile
    Patent number: D1010556
    Type: Grant
    Filed: October 14, 2021
    Date of Patent: January 9, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Oliver Knispel, Jaap Leendertse, Daniel Kunkel, Yuzo Kawasaki