Patents Assigned to Sumitomo Rubber Industries, Ltd.
  • Publication number: 20220143471
    Abstract: A golf ball 2 includes a core 4, an inner cover 6 positioned outside the core 4, and an outer cover 8 positioned outside the inner cover 6. The core 4 has a capsule 14, a plurality of separators 16, an electronic unit 18, and a plurality of fillings 20. The capsule 14 has a melting point of not lower than 100° C. A ratio P1 of a volume Vr of the capsule 14 to a volume Vc of the core 4 is not less than 25% and not greater than 75%. The electronic unit 18 is housed in the capsule 14. The electronic unit 18 detects behavior of the golf ball 2.
    Type: Application
    Filed: October 6, 2021
    Publication date: May 12, 2022
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Toshiyuki TAKUBO, Takahiro SAJIMA, Kuniyasu HORIUCHI, Hiroshi SHINOHARA, Jiro MORI, Tsuyoshi ITO, Masanobu YOSHIDA, Kazuya KAMINO, Hidetaka INOUE, Masahide ONUKI
  • Patent number: 11325422
    Abstract: A tyre has a tread portion having a tread ground contacting surface and a main groove having a bottom surface and two groove wall surfaces extending outwardly in a tyre radial direction from the bottom surface. In a lateral cross section perpendicular to a length direction, at least one groove wall surface has an inner groove wall portion connected with the bottom surface and a protruding portion connected with the inner groove wall portion and having a protruding end protruding inwardly in a groove width direction from a groove reference line obtained by extending the inner groove wall portion. The protruding portion has an inclined surface portion extends obliquely between the protruding end and the tread ground contacting surface. When the tread portion in a reference state is loaded with a tyre load of 1.20 times a standard tyre load, the whole inclined surface portion contacts a flat surface.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: May 10, 2022
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Masayuki Fujita, Koichi Nakajima
  • Patent number: 11325421
    Abstract: A tire has an intended tire rotational direction and comprises a tread portion having a tread surface defined between tread edges and a pair of buttress surfaces defined as extending radially inwardly from the respective tread edges. One or each of the buttress surfaces is provided with a plurality of protrusions protruding axially outwardly and arranged in the tire circumferential direction. The protrusions include a curved protrusion which extends radially inwardly from the tread surface while curving toward the intended tire rotational direction.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: May 10, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Yuki Fujimoto, Kotaro Tahara
  • Patent number: 11325426
    Abstract: A tire comprises a tread portion comprising at least one circumferentially continuously extending main groove, and a land portion divided by the above-said at least one main groove, wherein the land portion is provided with straight sipes and curved sipes each extending in the tire axial direction.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: May 10, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Kouichirou Tanaka
  • Patent number: 11325425
    Abstract: A tyre for a motorcycle for rough terrain comprises a tread portion. In a region between at least one of tread edges and a tyre equator, the tread portion is provided with middle blocks, shoulder blocks, and tie bars each connecting between one of the middle blocks and its adjacent one of the shoulder blocks. The shoulder blocks include first shoulder blocks forming the one of the tread edges and second shoulder blocks arranged on an inner side in a tyre axial direction of the one of the tread edges. The tie bars include first tie bars each connecting between one of the middle blocks and one of the first shoulder blocks and second tie bars each connecting between one of the middle blocks and one of the second shoulder blocks.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: May 10, 2022
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Kazuya Shirakami
  • Patent number: 11325428
    Abstract: A tire has a visible outer surface comprising a decorative region provided with a plurality of micro-protrusions each comprising a recess and a wall portion. The wall portion surrounds the recess to form a protrusion's apex having an upper surface, and the upper surface of the wall portion comprises at least two peak points in the protruding-height direction of the micro-protrusion, at which the protruding height of the wall portion becomes local maximum.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: May 10, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Tetsuya Sakaguchi, Yuichi Ishigaki, Hiroshi Fujita
  • Patent number: 11325427
    Abstract: A tire has an outer surface comprising a decorative portion which is visible and provided with micro-protuberances at a density of from 2 to 10 micro-protuberances per 1 sq.mm, and the micro-protuberances include a recessed micro-protuberance provided at its top surface with a recess.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: May 10, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Yuichi Ishigaki, Tetsuya Sakaguchi, Hiroshi Fujita
  • Publication number: 20220134808
    Abstract: Provided is a pneumatic tire with which the same driving safety as prior arts can be ensured and an improvement in fuel efficiency performance and durability performance is achieved. In this pneumatic tire, the tire radial direction outside end section of a chafer is disposed on the tire surface part, the loss tangent tan ?70° C.-SW of a side wall, the loss tangent tan ?70° C.-C of the chafer, complex elastic modulus E*70° C.-SW of the side wall, and the complex elastic modulus E*70° C.-C of the chafer under the condition of 70° C., an elongation of 1%, and a frequency of 10 Hz, and the loss tangent tan ?150° C.-SW of the side wall, and the loss tangent tan ?150° C.-C of the chafer measured under the condition of 150° C., an elongation of 1%, a frequency of 10 Hz satisfy the following expression. tan ?70° C.-SW+tan ?70° C.-C?0.25|tan ?70° C.-SW?tan ?70° C.-C|?0.07 E*70° C.-C?E*70° C.-SW?6.5 MPa tan ?150° C.-SW+tan ?150° C.-C?0.
    Type: Application
    Filed: February 6, 2020
    Publication date: May 5, 2022
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Hiroki KAWAI
  • Publication number: 20220134188
    Abstract: An object of the present invention is to provide a golf ball having high visibility and excellent orientation at shot. The present invention provides a golf ball comprising a core, at least one intermediate layer covering the core, and a cover covering the intermediate layer, wherein the golf ball surface has a first region with a first color and a second region with a second color, and when a color difference between a surface of an outermost layer of the intermediate layer and the first region of the golf ball surface is represented by ?Ems1, and a color difference between the surface of the outermost layer of the intermediate layer and the second region of the golf ball surface is represented by ?Ems2, ?Ems2/?Ems1?4.0 and ?Ems1?20 are satisfied.
    Type: Application
    Filed: October 29, 2021
    Publication date: May 5, 2022
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Hidetaka INOUE, Kazuya KAMINO
  • Publication number: 20220135154
    Abstract: An information acquisition apparatus for acquiring information relating to a crawler configured to be wound around a rotationally driven sprocket connected to a rotation axle provided in a vehicle, the crawler having a meshing part configured to mesh with a tooth or a tooth base of the sprocket and being circulatorily driven in conjunction with rotation of the sprocket is provided. The information acquisition apparatus includes a memory and a processor. The memory stores, as initial information, the number of meshing parts of the crawler and information specifying the meshing part that is at a predetermined position, prior to the vehicle traveling. The processor acquires rotation information of the sprocket. The processor, while the vehicle is traveling, information specifying the meshing part that is at the predetermined position, based on the initial information and the rotation information.
    Type: Application
    Filed: July 14, 2021
    Publication date: May 5, 2022
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Yoshio UENO
  • Patent number: 11318793
    Abstract: A pneumatic tire has a tread reinforcing layer comprising a net structure formed from a tape of rubber coated reinforcing cord(s). The net structure comprises first oblique segments and second oblique segments of the tape which intersect with each other, forming interspaces therebetween. The first oblique segment has a first axial outer part in which the angle of the tape with respect to the tire circumferential direction decreases toward one end in the tire axial direction of the net structure. The second oblique segment has a second axial outer part in which the angle of the tape with respect to the tire circumferential direction decreases toward the above-said one end of the net structure. The first axial outside part is connected to the second axial outside part directly or through a circumferential segment of the tape.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: May 3, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Masafumi Otani
  • Patent number: 11318695
    Abstract: A tire having a rubber assembly including a first rubber member, a second rubber member, and a third rubber member which are arranged in series in the cross-section including the tire rotational axis. The method includes: extruding the unvulcanized rubber assembly as two separate parts which are a first extrusion rubber portion and a second extrusion rubber portion divided at a division surface passing through the unvulcanized first rubber member; winding the first extrusion rubber portion into a base annular body; and forming the unvulcanized rubber assembly by winding the second extrusion rubber portion so that only the first rubber member included in the second extrusion rubber portion overlaps with the first rubber member included in the base annular body.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: May 3, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Takuma Watanabe, Rung Yimpoopha, Sittichai Apaikawin
  • Publication number: 20220126177
    Abstract: A golf club head includes: a sole; a crown; a toe; a heel opposite the toe; a strike face generally bounded by a face perimeter edge, the strike face comprising a geometric center; a rear portion; and a substantially enclosed interior cavity at least partially delimited by the sole, the crown, the strike face, and the rear portion. The golf club head also includes at least one rib having a first portion secured to the strike face, having a second portion secured to the crown, and being positioned such that a location on the strike face laterally spaced toe-ward from the geometric center by no less than 0.4 in is associated with a COR value no less than 0.825.
    Type: Application
    Filed: January 7, 2022
    Publication date: April 28, 2022
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Robert J. HORACEK, Nathaniel J. RADCLIFFE, John J. RAE, Michael J. WALLANS, Sam G. LACEY
  • Publication number: 20220126178
    Abstract: A shaft includes a tip end, a butt end, flexural rigidities E1 to E10 at respective points that are located 130 mm, 230 mm, 330 mm, 430 mm, 530 mm, 630 mm, 730 mm, 830 mm, 930 mm, and 1030 mm apart from the tip end. A ratio (E8/E1) is greater than or equal to 2 and less than or equal to 7. The flexural rigidity E1 is less than or equal to 2.5 (kgf·m2). The flexural rigidity E8 is greater than or equal to 5.0 (kgf·m2). When a formula of a straight line that passes through a point (230, E2) and a point (630, E6) is represented by y=ax+b, the shaft satisfies the following relationships R1 and R8: (130a+b)<E1?(130a+b+0.5)??(R1), and (830a+b)<E8?(830a+b+1.0)??(R8).
    Type: Application
    Filed: October 1, 2021
    Publication date: April 28, 2022
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Takashi NAKANO
  • Publication number: 20220126630
    Abstract: A tire comprises a tread portion comprising a shoulder land region provided with shoulder lateral grooves and circumferential sipes connecting between the shoulder lateral grooves. The shoulder lateral grooves are each provided with a chamfer. The circumferential sipes are each spaced apart from an axially inner end of the shoulder land region by an axial distance of from 30% to 100% of an axial width of the shoulder land region. The depths of the circumferential sipes are equal to or greater than the groove depths of the shoulder lateral grooves.
    Type: Application
    Filed: October 12, 2021
    Publication date: April 28, 2022
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Ryota UOTANI, Tatsuya KOBAYASHI
  • Patent number: 11312182
    Abstract: A first land region is defined between a first main groove and a second main groove extending in a tyre circumferential direction. The first land region is provided with a first oblique groove and a second oblique groove. The first oblique groove extends obliquely with respect to a tyre axial direction from the first main groove to have an end portion terminating within the first land region. The second oblique groove extends obliquely with respect to the tyre axial direction from the second main groove to intersect with a middle groove portion of the first oblique groove and terminate there.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: April 26, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Hiroki Nagase
  • Patent number: 11312183
    Abstract: A tyre includes a tread portion having an outer shoulder main groove, a crown main groove, and an outer middle land region defined between the outer shoulder main groove and the crown main groove. The outer middle land region is provided with first middle sipes each extending inwardly in a tyre axial direction from the outer shoulder main groove to have an inner end in the outer middle land region and second middle sipes each extending outwardly in the tyre axial direction from the crown main groove to have an outer end in the outer middle land region. The number of the second middle sipes is larger than the number of the first middle sipes.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: April 26, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Maiko Tanabe, Ryuta Kitora
  • Patent number: 11311782
    Abstract: A golf club head having a cavity therein comprises a wall at least a part of which is formed as a convexo-concave wall portion. The convexo-concave wall portion is composed of convexed portions repeatedly arranged in a first direction and a second direction intersecting the first direction, and concaved portions formed between the convexed portions. Each of the convexed portions includes at least one first protrusion extending in the first direction and at least one second protrusion extending in the second direction.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: April 26, 2022
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Yohei Ozaki, Masahide Onuki, Seiji Hayase
  • Patent number: 11312191
    Abstract: A pneumatic tire 1 comprises a carcass 6 extending between bead cores of bead portions via a tread portion 2 and sidewall portions, and a belt layer 7 arranged on an outer side in a tire radial direction of the carcass 6 and inside of the tread portion 2. The pneumatic tire 1 further comprises a damping rubber body 30 arranged between the carcass 6 and the belt layer 7, and a noise damper 20 arranged on an inner cavity surface of the tread portion 2. A width W1 in a tire axial direction of the damping rubber body 30 is in a range of from 60% to 130% of a width W2 in the tire axial direction of the belt layer 7, and a water absorption rate of the noise damper 20 is in a range of from 10% to 25%.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: April 26, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masako Nakatani, Takahiro Kawachi, Ayuko Yamada, Takuya Horiguchi, Masataka Hiro, Takayuki Nagase, Hiroshi Ito, Fumiya Kato, Subaru Toya
  • Patent number: D951172
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: May 10, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Hiroki Hokazono