Patents by Inventor Hana SATO

Hana SATO 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: 11142027
    Abstract: A pneumatic tire 1 comprises a carcass 6 comprising a carcass ply (6A) comprising a main body portion (6a) and turned up portions (6b), and bead apex rubbers 8. Each of the bead apex rubbers 8 comprises a first rubber portion 10 and a second rubber portion 11 provided on an outer side in a tire axial direction of the first rubber portion and having smaller rubber hardness than the first rubber portion. A ratio H1/H2 of a height (H1) of an outer end (10e) in a tire radial direction of the first rubber portion 10 from a bead base line (BL) and a height (H2) of an outer end in the tire radial direction of each of the turned up portions (6b) from the bead base line (BL) is in a range of from 1.4 to 1.7.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: October 12, 2021
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Hana Sato
  • Publication number: 20210291593
    Abstract: A tire 2 includes a tread 4 on which at least three circumferential grooves 24 continuously extending in a circumferential direction are formed, and a belt 14 located radially inward of the tread 4. A ratio of a center stretch, at a center portion of the belt, indicated by the follow/Mg formula (2) to a shoulder stretch, at an end portion of the belt, indicated by the following formula (1) is not less than 1 and not greater than 3, and the shoulder stretch is not less than 1%.
    Type: Application
    Filed: July 10, 2019
    Publication date: September 23, 2021
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Ikuo ATAKE, Hana SATO
  • Patent number: 11077715
    Abstract: A heavy-duty tire includes a tread portion including a pair of tread edges and a tire equator located therebetween. In a tire cross-section including a tire axis under a 5% inner pressure condition where the tire is mounted on a standard wheel rim with 5% of a standard pressure but loaded with no tire load, the tread portion has a profile which includes a first profile including the tire equator, a pair of second profiles extending axially inwardly from the tread edges and a pair of third profiles connecting the first profile and the respective second profiles. The first profile and the second profiles are configured as arc shapes protruding outwardly in a tire radial direction, and the third profiles are configured as straight shapes.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: August 3, 2021
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Hana Sato
  • Publication number: 20210061018
    Abstract: A tire has a tread portion comprising: a crown land zone provided with a crown auxiliary groove and crown lateral grooves; and a shoulder land zone provided with a shoulder auxiliary groove and shoulder lateral grooves. The axial width of the shoulder land zone is larger than the axial width of the crown land zone. The groove widths of the crown auxiliary groove and the shoulder auxiliary groove are smaller than that of a shoulder main groove. The lateral crown groove comprises a radially outer wide portion and a radially inner narrow sipe-like portion.
    Type: Application
    Filed: August 7, 2020
    Publication date: March 4, 2021
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventor: Hana SATO
  • Publication number: 20180361797
    Abstract: A heavy-duty tire includes a tread portion including a pair of tread edges and a tire equator located therebetween. In a tire cross-section including a tire axis under a 5% inner pressure condition where the tire is mounted on a standard wheel rim with 5% of a standard pressure but loaded with no tire load, the tread portion has a profile which includes a first profile including the tire equator, a pair of second profiles extending axially inwardly from the tread edges and a pair of third profiles connecting the first profile and the respective second profiles. The first profile and the second profiles are configured as arc shapes protruding outwardly in a tire radial direction, and the third profiles are configured as straight shapes.
    Type: Application
    Filed: May 30, 2018
    Publication date: December 20, 2018
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventor: Hana SATO
  • Publication number: 20180126802
    Abstract: A pneumatic tire 1 comprises a carcass 6 comprising a carcass ply (6A) comprising a main body portion (6a) and turned up portions (6b), and bead apex rubbers 8. Each of the bead apex rubbers 8 comprises a first rubber portion 10 and a second rubber portion 11 provided on an outer side in a tire axial direction of the first rubber portion and having smaller rubber hardness than the first rubber portion. A ratio H1/H2 of a height (H1) of an outer end (10e) in a tire radial direction of the first rubber portion 10 from a bead base line (BL) and a height (H2) of an outer end in the tire radial direction of each of the turned up portions (6b) from the bead base line (BL) is in a range of from 1.4 to 1.7.
    Type: Application
    Filed: October 19, 2017
    Publication date: May 10, 2018
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventor: Hana SATO
  • Patent number: D894111
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: August 25, 2020
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Hana Sato