Patents by Inventor Tsutomu Taneichi

Tsutomu Taneichi 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).

  • Manhole opening structure
    Patent number: 5732512
    Abstract: A manhole opening structure having a cover traveling rail on which at least one manhole cover can travel between a manhole opening and the ground and rail lifter serving to upwardly and downwardly move the cover traveling rail between a lower position where the manhole cover closes the manhole opening and an upper position where the manhole cover can move between the cover traveling rail and the ground.
    Type: Grant
    Filed: May 30, 1996
    Date of Patent: March 31, 1998
    Assignees: Nippon Koshuha Steel Co., Ltd., Koshuha Foundry Co., Ltd.
    Inventors: Takashi Ueno, Tsutomu Taneichi