Patents by Inventor Norihide Wakita

Norihide Wakita 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).

  • Underwater miner cutter head, underwater miner, and underwater mining system
    Patent number: 8960808
    Abstract: Provided is an underwater miner cutter head (20) attached to an underwater miner disposed on a seabed and configured to excavate the seabed, the cutter head including cylindrical cutter drums (21) disposed on respective sides defining a regular polygon in plan view, having bits (26) on the outer circumferential surfaces thereof, and configured to rotate around corresponding first rotational axes by first driving sources; and an intake (28) disposed at a center part of the regular polygon and configured to receive muck excavated with the bits (26), wherein rotating directions of the cutter drums (21) are set such that the bits (26) sequentially move toward the intake (28).
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: February 24, 2015
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Norihide Wakita, Futoshi Sameshima, Hiroyuki Odaka
  • UNDERWATER MINER CUTTER HEAD, UNDERWATER MINER, AND UNDERWATER MINING SYSTEM
    Publication number: 20130038113
    Abstract: Provided is an underwater miner cutter head (20) attached to an underwater miner disposed on a seabed and configured to excavate the seabed, the cutter head including cylindrical cutter drums (21) disposed on respective sides defining a regular polygon in plan view, having bits (26) on the outer circumferential surfaces thereof, and configured to rotate around corresponding first rotational axes by first driving sources; and an intake (28) disposed at a center part of the regular polygon and configured to receive muck excavated with the bits (26), wherein rotating directions of the cutter drums (21) are set such that the bits (26) sequentially move toward the intake (28).
    Type: Application
    Filed: May 9, 2011
    Publication date: February 14, 2013
    Inventors: Norihide Wakita, Futoshi Sameshima, Hiroyuki Odaka