Patents by Inventor Ryuichi Kozeki

Ryuichi Kozeki 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).

  • Joint for toy construction set
    Patent number: D760850
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: July 5, 2016
    Assignee: BUSYU KOGYO CO., LTD.
    Inventor: Ryuichi Kozeki
  • Joint for toy construction set
    Patent number: D771197
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: November 8, 2016
    Assignee: BUSYU KOGYO CO., LTD.
    Inventor: Ryuichi Kozeki
  • Joint for toy construction set
    Patent number: D772347
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: November 22, 2016
    Assignee: BUSYU KOGYO CO., LTD.
    Inventor: Ryuichi Kozeki
  • Joint for toy construction set
    Patent number: D772348
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: November 22, 2016
    Assignee: BUSYU KOGYO CO., LTD.
    Inventor: Ryuichi Kozeki