Patents Assigned to Sumitomo Rubber Industries, Ltd.
  • Publication number: 20240238655
    Abstract: A putter-type golf club head has a top portion, a bottom portion, a heel portion, a toe portion, and a striking face having a variably textured region. The variably textured region includes a central portion and an outer portion laterally spaced from the central portion towards one of the heel portion and the toe portion. The central portion has a material ratio of less than 20% at a cutoff height of 0.1 mm and the outer portion has a material ratio greater than that of the central portion at the cutoff height of 0.1 mm. Variation of the textured region provides consistent ball speed upon impact at different lateral positions of the striking face.
    Type: Application
    Filed: March 28, 2024
    Publication date: July 18, 2024
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Jacob LAMBETH, Mika Becktor
  • Publication number: 20240240369
    Abstract: Provided is a tire with excellent durability. The tire includes a tread rubber and a carcass containing a hybrid cord of at least one polyamide fiber yarn and at least one polyester fiber yarn, the hybrid cord having a twist coefficient K3 of 1800 or more and 2600 or less in final twisting as determined by R3×(D3)1/2 where R3 is a final twist number [times/10 cm] of the hybrid cord and D3 is a total fineness [dtex] of the hybrid cord, the twist coefficient K3 and a thickness L [mm] of the tread rubber giving a product (K3×L) of 15000 or more.
    Type: Application
    Filed: January 4, 2024
    Publication date: July 18, 2024
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Mizuki TASHIRO
  • Publication number: 20240227469
    Abstract: An apparatus for detecting decreased pressure includes a speed acquisition unit, a first index calculation unit, a second index calculation unit, and a decreased pressure detection unit. The speed acquisition unit acquires rotation speeds of a plurality of tires mounted to a vehicle. The first index calculation unit calculates a first decreased pressure index as an index for comparing the rotation speeds of the plurality of tires based on the rotation speeds. The second index calculation unit calculates a second decreased pressure index as an index different from the first decreased pressure index. The decreased pressure detection unit determines that at least one tire has a decreased pressure when both of the first decreased pressure index and the second decreased pressure index indicate that the at least one tire has a decreased pressure.
    Type: Application
    Filed: December 21, 2023
    Publication date: July 11, 2024
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Naoki MORITA, Hidetaka MASUDA, Keiichi MURAKAMI
  • Publication number: 20240227450
    Abstract: A tire includes a tread portion; a pair of bead portions; a pair of sidewall portions, each of which extend between the tread portion and a respective bead portion; a carcass that extends from one bead portion to the other, through the sidewall portions and tread portion; and an inner surface that defines a tire cavity; wherein the tread portion comprises a belt disposed outside of the carcass in a radial direction of the tire, the belt comprising one or more belt plies that extend in an axial direction of the tire; wherein each sidewall portion comprises an intermediate layer arranged inward in the tire radial direction from the carcass, wherein each intermediate layer comprises an outer edge that overlaps the belt and an inner edge arranged in the sidewall portion or bead portion; wherein the tire further comprises an inner layer arranged inward in the tire radial direction from the tread portion, the inner layer having a thickness in the radial direction defined by the carcass and inner surface; and wherei
    Type: Application
    Filed: October 6, 2023
    Publication date: July 11, 2024
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Axel WILDGRUBE, Niklas DIETZ, Tim MACKENROTH, Junya SUENO
  • Publication number: 20240228754
    Abstract: Provided are tread rubber compositions and pneumatic tires which are excellent in abrasion resistance. Included is a tread rubber composition containing, based on 100% by mass of a rubber component therein, 10% by mass or more of styrene-butadiene rubber and 10% by mass or more of polybutadiene rubber, and having an absolute value of change in hardness before and after heat aging, |?Hs|, satisfying the following relationship (1) and an absolute value of change in Swell before and after heat aging, |?Swell|, satisfying the following relationship (2): |?Hs|?3.0??(1); |?Swell|?20%??(2).
    Type: Application
    Filed: March 25, 2024
    Publication date: July 11, 2024
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventor: Kentaro NAKAMURA
  • Publication number: 20240227461
    Abstract: A motorcycle tire includes a tread portion, a pair of sidewall portions, a pair of bead portions, and a carcass extending between the bead portions in a toroidal manner. Each of the sidewall portions is provided with a sidewall rubber. In each of the sidewall portions, a minimum thickness (Ts) is 50% or less of a minimum tire thickness (Ta) from a respective one of tread edges to a tire inner cavity surface. A minimum thickness (Ds) of the sidewall rubber is from 0.3 to 1.9 mm.
    Type: Application
    Filed: October 2, 2023
    Publication date: July 11, 2024
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventor: Shohei SHIBAMOTO
  • Publication number: 20240227447
    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); an inner liner (7) constituting a tire inner surface (7A) on an inner side of the tread portion (2); and a mount member (10) which is provided on the tire inner surface (7A), and to which electric equipment can be attached. In the pneumatic tire (1), acetone extraction amount (AE2) of a rubber composition constituting the inner liner (7) is larger than acetone extraction amount AE1 of a rubber composition constituting the mount member (10).
    Type: Application
    Filed: February 17, 2022
    Publication date: July 11, 2024
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Takuma YOSHIZUMI, Naoya SOFUE, Daichi AOKI
  • Publication number: 20240227451
    Abstract: A motorcycle tire comprises a tread portion provided with a belt layer and a radially outer band layer. The belt layer comprises a first belt ply on a carcass 6 and a second belt ply thereon. The band layer is made of a spirally wound band cord and has a developed width smaller than that of the belt layer. In a meridian cross-section of the tire mounted on a standard wheel rim at an internal pressure of 10 kPa: the radius of curvature Rc of the ground contacting surface of the tire in its crown region is less than 95% of the cross-sectional width of the tire; and the radius of curvature Rc is smaller than a radius of curvature Rb of the ground contacting surface in shoulder regions.
    Type: Application
    Filed: December 11, 2023
    Publication date: July 11, 2024
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventor: Shohei SHIBAMOTO
  • Publication number: 20240227445
    Abstract: A pneumatic tire includes a tread portion, a pair of sidewall portions, a pair of bead portions, a carcass extending between the pair of bead portions, and an inner rubber extending between the pair of bead portions on an inner side of the carcass. The inner rubber includes a first portion extending in the tread portion with a first thickness and a second portion extending in each of or one of the pair of sidewall portions with a second thickness. The first thickness is greater than the second thickness. In a tire meridian cross-section, a cross-sectional area of the inner rubber is in a range from 1.5% to 10% of an inner-cavity cross-sectional area of the pneumatic tire.
    Type: Application
    Filed: September 25, 2023
    Publication date: July 11, 2024
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Daiki IMAI, Rena ONITSUKA, Suxiang YUAN, Junya SUENO
  • Publication number: 20240227456
    Abstract: A tire 1 includes a tread portion 2. The tread portion 2 includes tread ends Te, three circumferential grooves 3, and four land portions 4. The circumferential grooves 3 include one shoulder circumferential groove 5 and one crown circumferential groove 6. The land portions 4 include one shoulder land portion 9 and one crown land portion 10. The shoulder land portion 9 includes shoulder blocks having shoulder sipes. An inner end of the shoulder sipe in the tire axial direction terminates at a ground contact surface of the shoulder block. The crown land portion 10 includes crown blocks having crown sipe groups. The crown sipe group includes a first crown sipe having one end connected to the shoulder circumferential groove 5 and another end terminating at a ground contact surface of the crown block, a second crown sipe having one end connected to the crown circumferential groove 6 and another end terminating at the surface, and a third crown sipe having both ends terminating at the surface.
    Type: Application
    Filed: November 13, 2023
    Publication date: July 11, 2024
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Hiroshi YAMAOKA, Hiroki MIZOKAWA
  • Publication number: 20240227446
    Abstract: A pneumatic tire comprises: a tread portion having a ground contacting surface; a sidewall portions having an outer surface; a bead portions; a carcass extending between the bead portions; and an inner rubber extending between bead portions. The inner rubber comprises a first portion extending through the tread portion with a first thickness t1, and a second portion extending through the sidewall portion with a second thickness t2. The first thickness t1 is more than the second thickness t2. In a meridian cross section of the tire under its normal state, when a first reference point (Pb1), a second reference point (Pb2), a shoulder reference point (Ps), a reference line segment (Lb), and a shoulder line segment (Ls) are defined, then a length (L1) of the shoulder line segment (Ls) is 85.9% to 89.3% of a length (L2) of the reference line segment (Lb).
    Type: Application
    Filed: September 26, 2023
    Publication date: July 11, 2024
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Tatsuya SASAKI, Tsukasa YANO, Rena ONITSUKA, Masaki TERASHIMA, Yusuke SUEYOSHI, Hiroyuki NAKAYAMA, Junya SUENO
  • Publication number: 20240227454
    Abstract: A pneumatic tire comprises a tread portion, a pair of sidewall portions, a pair of bead portions, a carcass extending between the portions, and an inner rubber extending between the portions, on the inner side of the carcass. The inner rubber comprises a first portion extending through the tread portion with a first thickness and a second portion extending through the sidewall portions with a second thickness smaller than the first thickness. The land ratio of the tread portion 2 is 65% or more.
    Type: Application
    Filed: September 27, 2023
    Publication date: July 11, 2024
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Tatsuya SASAKI, Tsukasa YANO, Rena ONITSUKA, Shigeki NISHIJIMA, Masaki TERASHIMA, Yusuke SUEYOSHI, Junya SUENO
  • Publication number: 20240227453
    Abstract: A heavy duty pneumatic tire includes a crown circumferential groove, a shoulder circumferential groove, crown lateral grooves, and crown blocks. The crown circumferential groove includes crown first-side vertexes and crown second-side vertexes and thus zigzags. The shoulder circumferential groove includes shoulder inner-side vertexes and shoulder outer-side vertexes. The crown lateral grooves are disposed at two pitch intervals of a zigzag of the crown circumferential groove and connect between the crown first-side vertexes and the shoulder inner-side vertexes. The crown blocks have crown sub-grooves having a groove width less than a groove width of the crown lateral groove. The crown sub-groove includes at least two transverse grooves extending across the crown block.
    Type: Application
    Filed: October 11, 2023
    Publication date: July 11, 2024
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Hiroki SHINOHARA
  • Patent number: 12030344
    Abstract: A tire has a tread portion divided into a crown land region, shoulder land regions, and middle land regions. The crown land region comprises a crown axial central portion. The middle land region comprises a middle axial inner portion and a middle axial outer portion. The shoulder land region comprises a shoulder axial inner portion and a shoulder axial central portion. The radius Rmi of curvature of the middle axial inner portion is 0.80 to 1.20 times the radius Rcc of curvature of the crown axial central portion. The radius Rsc of curvature of shoulder axial central portion is 0.80 to 1.20 times the radius Rmo of curvature of middle axial outer portion. The radii Rsc and Rmo are less than the radii Rcc and Rmi. The radius Rsi of the shoulder axial inner portion is less than the radii Rsc and Rmo.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: July 9, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Takashi Sugiura
  • Patent number: 12029948
    Abstract: A golf club head includes a metallic head body having an opening, and an FRP member fixed to the head body so as to close the opening. The FRP member is a fiber-reinforced plastic including fibers and thermoplastic resin. The head body includes a support portion around the opening. The support portion has a first surface for supporting the FRP member. The first surface is provided with at least one narrow groove having a groove width of 20 to 80 ?m and a groove depth of 100 to 400 ?m, and a part of the thermoplastic resin of the FRP member is solidified inside the at least one narrow groove.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: July 9, 2024
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Yumi Kanemitsu, Naruhiro Mizutani, Hirotaka Nakamura, Yuki Motokawa
  • Patent number: 12031040
    Abstract: Provided are a tread rubber composition which provides a balanced improvement in wet grip performance and resistance to low-temperature brittleness, and a pneumatic tire including a tread at least partially containing the rubber composition. The present invention relates to a tread rubber composition containing a styrene-butadiene rubber and having a tan ? peak temperature of ?10° C. or higher and a brittleness temperature of ?40° C. or lower.
    Type: Grant
    Filed: October 14, 2021
    Date of Patent: July 9, 2024
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Kenya Watanabe
  • Patent number: 12030347
    Abstract: A motorcycle tire set includes a front-wheel tire and a rear-wheel tire. Each of the front and rear-wheel tires includes a carcass, a band layer arranged radially outwardly of the carcass in the tread portion, and a tread rubber arranged radially outwardly of the band layer. The carcass includes a carcass ply including carcass cords. The band layer includes a jointless band ply in which a band cord is circumferentially wound spirally at an angle equal to or less than 5 degrees. The tread rubber includes a crown rubber portion. An angle ?1 of the carcass cords of the front-wheel tire is 65 degrees or more with respect to the tire circumferential direction. A rubber hardness of the crown rubber portion of the rear-wheel tire is greater than a rubber hardness of the crown rubber portion of the front-wheel tire.
    Type: Grant
    Filed: January 13, 2023
    Date of Patent: July 9, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Kenji Nonaka
  • Patent number: 12031038
    Abstract: Provided are a tread rubber composition and a pneumatic tire, which exhibit excellent wet grip performance when thermally damaged. A tread rubber composition having acetone extractable contents before and after heat aging (denoted by “AEf” and “AEo”, respectively) that satisfy the following relationships 1) and 2): 1) AEf?16.0%; 2) AEo/AEf×100?95%.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: July 9, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Hiroshi Ito
  • Patent number: D1034865
    Type: Grant
    Filed: August 1, 2022
    Date of Patent: July 9, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Darius Cyrulik
  • Patent number: D1035803
    Type: Grant
    Filed: November 29, 2022
    Date of Patent: July 16, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Satoko Tsuchihashi