Patents by Inventor Toshihumi Inoue

Toshihumi Inoue 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).

  • Main-ancillary tunnel excavator
    Patent number: 5634692
    Abstract: A turnable tunnel excavator and tunneling method are provided which can alternate between construction of a main tunnel A and crosscuts B, and can excavate other tunnels without having to pass through an arc. It is comprised of a main machine and an ancillary machine housed inside a pivotable housing within the said main machine and how to operate such a machine.
    Type: Grant
    Filed: September 6, 1995
    Date of Patent: June 3, 1997
    Assignees: Taisei Corporation, Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Kenichi Kaneko, Toshihiko Bessho, Yoshihiro Uchiyama, Toshihumi Inoue, Masahiko Sugiyama