Patents Assigned to Sumitomo Rubber Industries, Ltd.
  • Patent number: 11878555
    Abstract: A tire includes a tread portion including a first land portion, the first land portion being provided with a plurality of first sipes. The plurality of first sipes extends in an arc shape manner. The plurality of first sipes is arranged on the first land portion without communicating with lateral grooves extending in a tire axial direction. In a tread plan view, a virtual sipe reference line of each of the plurality of first sipes has an angle equal to or less than 10 degrees with respect to a tire circumferential direction, wherein the virtual sipe reference line is a straight line that connects both ends of each of the plurality of first sipes.
    Type: Grant
    Filed: March 10, 2022
    Date of Patent: January 23, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Ryotaro Kitahara, Hiroshi Yamaoka
  • Patent number: 11878554
    Abstract: A tyre includes a crown land portion, an outboard middle land portion, an outboard shoulder land portion, an outboard crown circumferential groove, an outboard shoulder circumferential groove, an inboard middle land portion, an inboard shoulder land portion, an inboard crown circumferential groove, and an inboard shoulder circumferential groove. The outboard middle land portion is provided with full-opened outboard middle sipe that are inclined to a tyre axial direction. The outboard middle sipes each have two opposite sipe-edge portions provided with chamfer portions. In each chamfer portion of each outboard middle sipe, chamfer widths at both ends of the outboard middle sipe are larger than a chamfer width of a central portion of the outboard middle sipe. The outboard shoulder land portion is provided with outboard shoulder sipes that are inclined in the same direction as the outboard middle sipes to the tyre axial direction.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: January 23, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Takashi Okada, Saori Yoshida, Shunta Kokatsu
  • Publication number: 20240017133
    Abstract: A golf club head includes a face portion including a hitting face, a sole portion, a crown portion, and a hosel portion. The sole portion includes a center thin-wall part and an outer thick-wall part that is formed on a sole outer edge side of the center thin-wall part and is thicker than the center thin-wall part. The outer thick-wall part includes a first thick-wall part that is formed over a region including a position of a center of gravity of the head in a face-back direction, and a second thick-wall part that is positioned on a back side of the first thick-wall part and is thicker than the first thick-wall part. The outer thick-wall part of the sole portion may further include a third thick-wall part that is positioned on the back side of the second thick-wall part and is thinner than the second thick-wall part.
    Type: Application
    Filed: June 22, 2023
    Publication date: January 18, 2024
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventor: Jun KODAKA
  • Publication number: 20240017575
    Abstract: A pneumatic tire has a carcass. The carcass includes a carcass ply extending from one bead portion to the other bead portion through a tread portion. The carcass ply is provided with at least one conductive thread extending from one bead portion to at least the tread portion. The conductive thread has an electrical resistance of 108 ?/cm or less per unit length. The conductive thread has a stress of 13 N or less at 1% elongation.
    Type: Application
    Filed: November 17, 2021
    Publication date: January 18, 2024
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Shumpei MORITA, Masumi SUZUKI, Takashi MIKI, Noboru OKABE
  • Patent number: 11872451
    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 dub face.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: January 16, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Kuniyasu Horiuchi, Toshiyuki Tarao, Hidetaka Inoue, Kazuya Kamino
  • Patent number: 11876228
    Abstract: Provided is an organic sulfur material comprising a sulfur-modified acrylic resin, wherein an acrylic resin is at least one polymer selected from the group consisting of (a) a polymer of at least one selected from the group consisting of acrylate compounds represented by CH2?C(R11)COOR12, wherein R11 is a hydrogen atom or a methyl group and R12 is an alkyl group, and (b) a polymer of at least one selected from the group consisting of acrylate compounds above and at least one selected from the group consisting of diacrylate compounds represented by CH2?C(R21)COO—Y—OCO(R22)C?CH2, wherein each of R21 and R22 is the same or different and is a methyl group, etc., Y is a hydrocarbylene group, etc., wherein the hydrocarbylene group may have a substituent selected from a hydroxyl group and an alkyl group.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: January 16, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Fumiya Chujo, Tatsuya Kubo
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • Patent number: D1011269
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: January 16, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Yukiko Hinami
  • Patent number: D1012002
    Type: Grant
    Filed: February 8, 2022
    Date of Patent: January 23, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Naoki Iwamoto