Patents by Inventor Hiroto Gomi

Hiroto Gomi 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).

  • Device for filling up of recess left in concrete wall after removal
    Patent number: 4905429
    Abstract: The present invention relates to a device for filling up a recess left in a concrete wall after removal of a separator terminal, the device comprising a main body including a circumferential step formed around its outer periphery at a longitudinal intermediate location so that the circumferential step defines a diameter-reduced portion and a diameter-enlarged portion of the main body, a threaded hole centrally formed and axially extending in an end surface of the diameter-reduced portion to be engaged with a threaded end of the separator, tool receiving apertures formed in an end surface of the diameter-enlarged portion and in elastic water-swollen rubber cylinder put around the diameter-reduced portion so that an outer periphery of said cylinder is tapered towards the end surface of the diameter-reduced portion and an end surface of the cylinder looking towards the end surface of the diameter-enlarged portion bears against the step of the main body while the end surface of the cylinder looking towards the en
    Type: Grant
    Filed: April 28, 1989
    Date of Patent: March 6, 1990
    Assignee: Denka Kogyo Kabushiki Kaisha
    Inventors: Takuo Fukushima, Yasumasa Hayashida, Hiroto Gomi, Kuniharu Kikuma