Patents by Inventor Kai Kohara

Kai Kohara 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).

  • Tire tread
    Patent number: D886029
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: June 2, 2020
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Takamitsu Nakamura, Shingo Honda, Kai Kohara
  • Tire tread
    Patent number: D889385
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: July 7, 2020
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Takamitsu Nakamura, Shingo Honda, Kai Kohara
  • Tire tread
    Patent number: D892032
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: August 4, 2020
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Takamitsu Nakamura, Shingo Honda, Kai Kohara