Patents by Inventor Toshiki HORIGUCHI

Toshiki HORIGUCHI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11511567
    Abstract: A tyre comprises a tread portion having a land region including a ground contacting surface defined between a first vertical edge and a second vertical edge and a lateral groove including a first portion extending from the first vertical edge, a second portion extending from the second vertical edge, and a connection portion connecting therebetween. The connection portion is a portion between a first small edge protruding circumferentially from the first portion and a second small edge protruding toward a circumferentially opposite side to the first small edge. A length in the tyre circumferential direction of each of the first and second small edges is smaller than a maximum groove width of each of the first and second portions. At least a part of the connection portion has a raised bottom portion having a depth smaller than that of the lateral groove at the first and second vertical edges.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: November 29, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Toshiki Horiguchi, Yoshiaki Kanematsu
  • Patent number: 10994575
    Abstract: A tire comprises a center land region 25 provided with center sipes 7 having open ends 7E13 connected with a first center main groove 13 and a first middle land region 23 provided with middle sipes 8 having open ends 8E13 and 8E14 connected with the first center main groove 13 and/or a first shoulder main groove 14. The center sipes 7 include hook-shaped center sipes 55 crossing the center land region 25, and the middle sipes 8 include hook-shaped middle sipes 45 crossing the first middle land region 23.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: May 4, 2021
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Toshiki Horiguchi, Hiroshi Yamaoka
  • Publication number: 20210101412
    Abstract: A tire has a tread portion 2. The first middle land region 11 is provided with bend grooves 15 each having a first end 15a and a second end 15b. The first end 15a is connected to the first shoulder circumferential groove 5. The second end 15b is connected to one of the bend grooves 15 next in one of two opposite circumferential directions. Each bend groove 15 has two bent portions 16 and 17 at which the groove is bent. The bent angle ?1 at the first bent portion 16 is greater than the bent angle ?2 at the second bent portion 17.
    Type: Application
    Filed: October 7, 2020
    Publication date: April 8, 2021
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Yoshifumi KAWAGOE, Toshiki HORIGUCHI, Mari MISHIMA, Kotaro TAHARA
  • Patent number: 10821781
    Abstract: A tire includes a tread part having main grooves and lands demarcated by the main grooves. A crown land between a pair of crown main grooves includes first crown lug grooves extending from one crown groove to tire axial direction inner side and terminated within the crown land, second crown lug grooves extending from the other crown groove to the tire axial inner side and terminated within the crown land, and first crown sipes formed at tire circumferential direction positions and connecting the crown grooves, each first crown sipe includes a first side crown sipe piece extending from one crown groove to the tire axial inner side, a second side crown sipe piece not positioned on an extension line of the first side piece and extending from the other crown groove to the tire axial inner side, and a connecting crown sipe piece connecting the first and second sipe pieces.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: November 3, 2020
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Toshiki Horiguchi, Hiroshi Yamaoka, Yoshiaki Kanematsu
  • Publication number: 20200247188
    Abstract: A tire includes a tread portion, and the tread portion includes a crown land portion disposed on a tire equator. The crown land portion includes: a first crown edge that extends in a tire circumferential direction on one side of the tire equator; a second crown edge that extends in the tire circumferential direction on the other side of the tire equator; a plurality of crown lateral grooves that extend from the first crown edge beyond the tire equator and terminate in the crown land portion; and crown sipes that include first sipe elements extending from the crown lateral grooves toward the second crown edge. The first sipe elements intersect the crown lateral grooves at an obtuse angle.
    Type: Application
    Filed: January 29, 2020
    Publication date: August 6, 2020
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Toshiki HORIGUCHI, Yoshiaki KANEMATSU
  • Publication number: 20190329599
    Abstract: A tyre comprises a tread portion having a land region including a ground contacting surface defined between a first vertical edge and a second vertical edge and a lateral groove including a first portion extending from the first vertical edge, a second portion extending from the second vertical edge, and a connection portion connecting therebetween. The connection portion is a portion between a first small edge protruding circumferentially from the first portion and a second small edge protruding toward a circumferentially opposite side to the first small edge. A length in the tyre circumferential direction of each of the first and second small edges is smaller than a maximum groove width of each of the first and second portions. At least a part of the connection portion has a raised bottom portion having a depth smaller than that of the lateral groove at the first and second vertical edges.
    Type: Application
    Filed: April 9, 2019
    Publication date: October 31, 2019
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Toshiki HORIGUCHI, Yoshiaki KANEMATSU
  • Publication number: 20180178589
    Abstract: A tire comprises a center land region 25 provided with center sipes 7 having open ends 7E13 connected with a first center main groove 13 and a first middle land region 23 provided with middle sipes 8 having open ends 8E13 and 8E14 connected with the first center main groove 13 and/or a first shoulder main groove 14. The center sipes 7 include hook-shaped center sipes 55 crossing the center land region 25, and the middle sipes 8 include hook-shaped middle sipes 45 crossing the first middle land region 23.
    Type: Application
    Filed: December 15, 2017
    Publication date: June 28, 2018
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Toshiki HORIGUCHI, Hiroshi YAMAOKA
  • Publication number: 20180015789
    Abstract: A tire includes a tread part having main grooves and lands demarcated by the main grooves. A crown land between a pair of crown main grooves includes first crown lug grooves extending from one crown groove to tire axial direction inner side and terminated within the crown land, second crown lug grooves extending from the other crown groove to the tire axial inner side and terminated within the crown land, and first crown sipes formed at tire circumferential direction positions and connecting the crown grooves, each first crown sipe includes a first side crown sipe piece extending from one crown groove to the tire axial inner side, a second side crown sipe piece not positioned on an extension line of the first side piece and extending from the other crown groove to the tire axial inner side, and a connecting crown sipe piece connecting the first and second sipe pieces.
    Type: Application
    Filed: June 23, 2017
    Publication date: January 18, 2018
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Toshiki HORIGUCHI, Hiroshi YAMAOKA, Yoshiaki KANEMATSU
  • Patent number: D852735
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: July 2, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Toshiki Horiguchi
  • Patent number: D880409
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: April 7, 2020
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Toshiki Horiguchi
  • Patent number: D883903
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: May 12, 2020
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Toshiki Horiguchi, Yoshiaki Kanematsu