Patents by Inventor Keiichi Hanami

Keiichi Hanami 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).

  • Pneumatic tire
    Patent number: 9545824
    Abstract: A pneumatic tire includes, on a tread surface (1) of the tire, at least two longitudinal grooves (2, 3) extending along a tire equator (C), a plurality of transverse grooves (4a to 4d) connecting the longitudinal grooves, and a block row (L5) formed by a plurality of blocks (5a to 5d) extending along the tire equator and defined by the longitudinal grooves and the transverse grooves. Each of the blocks (5a to 5d) includes a reduced thickness portion (6) in an overlapping region (R) where the blocks overlap in projection when the block row (L5) is projected in the circumferential direction, the reduced thickness portion (6) including at least two portions where the thickness of the block gradually decreases.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: January 17, 2017
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Keiichi Hanami
  • PNEUMATIC TIRE
    Publication number: 20130312889
    Abstract: A pneumatic tire includes, on a tread surface (1) of the tire, at least two longitudinal grooves (2, 3) extending along a tire equator (C), a plurality of transverse grooves (4a to 4d) connecting the longitudinal grooves, and a block row (L5) formed by a plurality of blocks (5a to 5d) extending along the tire equator and defined by the longitudinal grooves and the transverse grooves. Each of the blocks (5a to 5d) includes a reduced thickness portion (6) in an overlapping region (R) where the blocks overlap in projection when the block row (L5) is projected in the circumferential direction, the reduced thickness portion (6) including at least two portions where the thickness of the block gradually decreases.
    Type: Application
    Filed: February 10, 2012
    Publication date: November 28, 2013
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Keiichi Hanami
  • Tread portion of an automobile tire
    Patent number: D1008941
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: December 26, 2023
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Keiichi Hanami, Mayuko Karasawa