Patents Assigned to Sumitomo Rubber Industries, Ltd.
  • Publication number: 20240420807
    Abstract: Provided are a highly accurate method for predicting a physical property of a polymer and a polymer having excellent physical properties such as an ability to selectively capture specific cells and biocompatibility.
    Type: Application
    Filed: June 3, 2024
    Publication date: December 19, 2024
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Yasuhisa Minagawa
  • Patent number: 12168371
    Abstract: To provide pneumatic tires with excellent ride quality during high-speed driving, a pneumatic tire having a tread portion with a circumferential groove and a belt layer, wherein a monofilament cord is used as a reinforcing cord for the belt layer; and the number of arrangements e (lines/5 cm) of the monofilament cords per 5 cm in the tire width direction in the tire radial cross section of the belt layer, the distance G (mm) from the surface of the land portion closest to the equatorial plane among land portions separated by the circumferential groove to the monofilament cord, and the loss tangent (30° C. tan ?) when the rubber composition constituting the surface of the tread portion is measured satisfy (30° C. tan ?×G)/e>0.015 is provided.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: December 17, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Momoka Misaki, Dong Miao, Hiroki Kawai
  • Publication number: 20240409768
    Abstract: Provided is a method of producing a polymer-coated substrate for capturing cancer cells in which a polymer layer is stably maintained on the surface of the substrate for a long time even in a liquid environment. The method of producing a polymer-coated substrate for capturing cancer cells includes forming a polymer layer using a hydrophilic polymer represented by the following formula (I) on a surface of a substrate having undergone anti-reflection treatment, wherein R1 represents a hydrogen atom or a methyl group; R2 represents an alkyl group; m represents 1 to 5; and n represents the number of repetitions.
    Type: Application
    Filed: May 13, 2024
    Publication date: December 12, 2024
    Applicants: SUMITOMO RUBBER INDUSTRIES, LTD., KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Yasuhisa MINAGAWA, Masaru TANAKA, Takahisa ANADA, Aki YAMAMOTO, Hironori SHINDO, Jisu PARK, Kazuma UJIGAWA
  • Publication number: 20240410791
    Abstract: This tire state estimation method includes the following. (1) Disposing, on the inner side of a tire, at least one power generator that generates voltage in response to deformation of the tire. (2) Acquiring measurement data in a time series obtained by measuring, while the tire is rotating, the voltage and/or a physical quantity corresponding to the voltage. (3) Identifying a peak that repeatedly appears in the measurement data. (4) Identifying a value of the peak and/or an interval of the peak. (5) Estimating the state of the tire on the basis of the identified value and/or the identified interval. The power generator is provided with a first member and a second member. The first member and the second member are configured such that one is positively charged and the other is negatively charged in accordance with pressure applied to the first member and the second member.
    Type: Application
    Filed: September 28, 2022
    Publication date: December 12, 2024
    Applicants: Sumitomo Rubber Industries, Ltd., The School Corporation Kansai University
    Inventors: Takahiro FUJIWARA, Mutsuki SUGIMOTO, Kenichi KURODA, Kyota SUGIOKA, Hiroshi TANI
  • Patent number: 12162312
    Abstract: A tire for running on rough terrain has a tread portion provided with crown blocks, middle blocks, and groove portions. Each of the crown blocks includes a ground contacting surface and a first wall surface located on a heel side in a tire rotational direction. The first wall surface is inclined to a toe side in the tire rotational direction as it goes inward in a tire radial direction from the ground contacting surface. Each of the groove portions has a length in the tire axial direction of 5% or more and 70% or less of a length in the tire axial direction of each of the middle blocks.
    Type: Grant
    Filed: April 1, 2022
    Date of Patent: December 10, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Shuji Kobori
  • Patent number: 12162315
    Abstract: A tire includes a tread portion including a first shoulder land portion provided with first shoulder lateral grooves extending from a first tread edge to a first shoulder circumferential groove, a second shoulder land portion provided with second shoulder lateral grooves extending from a second tread edge and terminating within the second shoulder land portion, a first middle land portion provided with first middle lateral grooves extending from the first shoulder circumferential groove and terminating within the first middle land portion, a second middle land portion provided with outer and inner second middle lateral grooves respectively extending from the second crown circumferential groove and the second shoulder circumferential groove and terminating within the second middle land portion, and a crown land portion provided with crown lateral grooves extending from the first crown circumferential groove and terminating within the crown land portion.
    Type: Grant
    Filed: October 11, 2022
    Date of Patent: December 10, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Yuya Meguro
  • Patent number: 12162313
    Abstract: A tire comprises a tread portion including a shoulder land portion. The shoulder land portion is provided with shoulder lateral grooves extending from a shoulder circumferential groove to a first tread edge to divide the shoulder land portion into shoulder blocks. The axial width of the ground contacting top surface of each shoulder block is 35% to 48% of a half tread width from the tire equator to the first tread edge. The ground contacting top surface of each shoulder block is provided with only one or more shoulder sipes extending in a tire circumferential direction.
    Type: Grant
    Filed: December 23, 2022
    Date of Patent: December 10, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Takashi Nishiwaki, Sho Ito
  • Patent number: 12161918
    Abstract: A golf club head with a hollow therein comprises a face portion and a main body portion including a crown portion and a sole portion extending rearward from the face portion. The main body portion is provided with at least one slit penetrating through the main body portion. The slit has a width in the toe-heel direction and a length in the front-rear direction which is larger than the width. The surrounding area of the slit is at least partially provided with a thick portion.
    Type: Grant
    Filed: December 6, 2022
    Date of Patent: December 10, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Yohei Ozaki, Seiji Hayase, Masahide Onuki
  • Publication number: 20240399216
    Abstract: An object of the present disclosure is to provide a golf ball having a small difference in the flight distance on a driver shot when hit at a high head speed and when hit at a low head speed. The present disclosure provides a golf ball comprising a spherical core, an intermediate layer and an outermost cover, wherein when a center hardness Ho (Shore C hardness) of the spherical core, a surface hardness Hs (Shore C hardness) of the spherical core, a hardness difference S=Hs?Ho, a material hardness Hm (Shore D hardness) of the intermediate layer, a material hardness Hc (Shore D hardness) of the outermost cover, a thickness Tc (mm) of the outermost cover, and a total lower volume Vi (mm3) of a plurality of dimples satisfy Vi>365 and (Hc/Tc)×(S×Hm/Vi)?130.
    Type: Application
    Filed: May 23, 2024
    Publication date: December 5, 2024
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Hidetaka INOUE, Takahiro SAJIMA, Kaita FUKAO
  • Publication number: 20240399799
    Abstract: The pneumatic tire comprises a tread portion, a pair of sidewall portions and a pair of bead portions. At least one of the bead portions is provided with at least one electronic component, a bead apex rubber extending radially outwardly from a bead core, and a bead reinforcing layer extending in the tire radial direction along the bead apex rubber. The bead reinforcement layer comprises a steel cord ply having a spliced portion where both circumferential end portions thereof are overlap-jointed. The electronic component is arranged away from the spliced portion in the tire circumferential direction, and located within the arranged range in the tire radial direction of the steel cord ply.
    Type: Application
    Filed: May 6, 2024
    Publication date: December 5, 2024
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventor: Sho ITO
  • Publication number: 20240399214
    Abstract: An object of the present disclosure is to provide a golf ball that has a high spin rate but does not fly up in a high maximum flying height, thereby having a reduced number of shots into the OB area on a driver shot. The present disclosure provides a golf ball comprising a spherical core, an intermediate layer and an outermost cover, wherein a material hardness Hm (Shore D hardness) of the intermediate layer, a material hardness Hc (Shore D hardness) of the outermost cover, a thickness Tc (mm) of the outermost cover, and a total lower volume Vi (mm3) of a plurality of dimples satisfy Vi>365 and (Hc/Tc)×(Hm/Vi)?7.5.
    Type: Application
    Filed: May 23, 2024
    Publication date: December 5, 2024
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Hidetaka INOUE, Takahiro SAJIMA, Kaita FUKAO
  • Publication number: 20240401087
    Abstract: The present disclosure aims to provide a method for producing a trans-polyisoprenoid (trans-1,4-polyisoprene) with a molecular weight of more than 105 in an enzymatic manner. The present disclosure relate to a method for producing a trans-polyisoprenoid, which includes binding to a lipid membrane in vitro a trans-prenyltransferase (tPT) family protein capable of producing a product with a molecular weight of 104 or more when not bound to any lipid membrane.
    Type: Application
    Filed: August 19, 2022
    Publication date: December 5, 2024
    Applicants: SUMITOMO RUBBER INDUSTRIES, LTD., TOHOKU UNIVERSITY
    Inventors: Haruhiko YAMAGUCHI, Yukino MIYAGI INOUE, Toru NAKAYAMA, Seiji TAKAHASHI
  • Publication number: 20240399215
    Abstract: An object of the present disclosure is to provide a golf ball having a lowered flight distance difference between flight distances on various numbered-iron shots. The present disclosure provides a golf ball comprising a spherical core, an intermediate layer covering the spherical core, and an outermost cover positioned outside the intermediate layer and having a plurality of dimples formed thereon, wherein the plurality of dimples have a total lower volume Vi of more than 365 mm3, and a slab hardness Hc (Shore D) of a cover composition constituting the outermost cover, a thickness Tc (mm) of the outermost cover and the total lower volume Vi (mm3) of the plurality of dimples satisfy a relationship of 8.5?Tc/Hc×Vi.
    Type: Application
    Filed: May 30, 2024
    Publication date: December 5, 2024
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Hidetaka Inoue, Takahiro Sajima, Kaita Fukao
  • Publication number: 20240399227
    Abstract: Systems and methods receive first data associated with first launch conditions of a first golf ball after the first golf ball moves from a first initial position. The systems and methods determine a simulated landing position of the first golf ball, the simulated landing position determined based at least in part on the launch conditions. The systems and methods receive an actual landing position of the first golf ball, determine second data associated with an error between the simulated landing position and the actual landing position, and train a machine learning model using the error between the simulated landing position and the actual landing position. The systems and methods receive third data associated with second launch conditions of a second golf ball after the second golf ball moves from a second initial position, and determine, based at least in part on inputting the third data into the trained machine learning model, a predicted landing position of the second golf ball.
    Type: Application
    Filed: June 3, 2024
    Publication date: December 5, 2024
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: William Mark MCNALLY, Jacob Lambeth, Dustin Brekke
  • Patent number: 12157474
    Abstract: A determining method for determining a state of a road surface includes: sequentially acquiring a rotational speed of tires mounted on the vehicle, sequentially acquiring a driving force of the vehicle, calculating a slip ratio based on the sequentially acquired rotational speed of the tires, calculating a regression equation and a confidence interval width for a relationship between the slip ratio and the driving force, based on data sets of the slip ratio and the driving force in a predetermined zone, and determining a state of the road surface on which the vehicle travels, based on the confidence interval width calculated for the predetermined zone.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: December 3, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Yusuke Maeda
  • Patent number: 12157040
    Abstract: A correlated set of golf club heads comprises a first and second golf club head. Each club head has a striking face, a rear surface, a top portion, a sole portion, a toe portion, a heel portion, and a loft. The striking face has a first plurality of scorelines defining a scoreline heel-ward extent and a scoreline toe-ward extent. The plurality of scorelines comprises a scoreline length LS1 being the lateral distance between the heel-ward extent and the toe-ward extent. The loft of the second golf club head is greater than that of the first golf club head. The scoreline length LS2 of the second golf club head differs from that of the first scoreline length LS1.
    Type: Grant
    Filed: May 6, 2022
    Date of Patent: December 3, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Patrick Ripp, Jeff D. Brunski, Mika Becktor
  • Patent number: 12157818
    Abstract: The present invention aims to provide rubber compositions and tires which provide improved overall performance in terms of wet grip performance and dry grip performance. The present invention relates to a rubber composition having a dynamic modulus E* that reversibly changes with water and satisfying the following relationship (1): Dynamic modulus E*when water-wet/Dynamic modulus E*when dry×100%?90%??(1).
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: December 3, 2024
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Kensuke Washizu
  • Publication number: 20240390739
    Abstract: An object of the present disclosure is to provide a golf ball from which stain such as mud or grass juice can be wiped off when the stain is adhered to the golf ball while the spin performance of the golf ball on approach shots is not substantially lowered. The present disclosure 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 at least one layer of the paint film contains a polyurethane as a resin component, and the polyurethane has a structural unit derived from a polyether polycarbonate diol.
    Type: Application
    Filed: April 12, 2024
    Publication date: November 28, 2024
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Yasuo NAITO, Masayuki ONISHI, Kazuyoshi SHIGA, Hiroaki TANAKA, Takehiko HYODO
  • Patent number: D1053111
    Type: Grant
    Filed: July 14, 2023
    Date of Patent: December 3, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Yoshifumi Kawagoe, Kohei Ikeda
  • Patent number: D1053921
    Type: Grant
    Filed: September 22, 2022
    Date of Patent: December 10, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Daniel Gawlitt, Carlos Maldonado Bellido, Michael M. Koegler, Daniel Schildger