Patents by Inventor Shigeru Kunishima

Shigeru Kunishima 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).

  • Storage container, storage container refilling system, and refilling method
    Patent number: 6538259
    Abstract: A container body of a concrete cask includes a storage portion that stores a canister. A refilling system includes a reduction cylinder having an outside diameter smaller than the diameter of the storage portion and an inside diameter larger than the diameter of the canister, a first lift mechanism configured to raise and lower the reduction cylinder between a down position in the storage portion and an up position wherein it is drawn out of the storage portion, and a second lift mechanism having a holding portion for holding one end portion of the canister and configured to raise and lower the canister with respect to the container body. In refilling operations, the canister is loaded into and unloaded from the storage portion of the container body by the second lift mechanism with the reduction cylinder set in the storage portion.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: March 25, 2003
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Kenichi Matsunaga, Ganji Abe, Kazuo Murakami, Kazuo Asada, Tadashi Shiraishi, Shigeru Kunishima
  • STORAGE CONTAINER, STORAGE CONTAINER REFILLING SYSTEM, AND REFILLING METHOD
    Publication number: 20030028065
    Abstract: A container body of a concrete cask includes a storage portion that stores a canister. A refilling system includes a reduction cylinder having an outside diameter smaller than the diameter of the storage portion and an inside diameter larger than the diameter of the canister, a first lift mechanism configured to raise and lower the reduction cylinder between a down position in the storage portion and an up position wherein it is drawn out of the storage portion, and a second lift mechanism having a holding portion for holding one end portion of the canister and configured to raise and lower the canister with respect to the container body. In refilling operations, the canister is loaded into and unloaded from the storage portion of the container body by the second lift mechanism with the reduction cylinder set in the storage portion.
    Type: Application
    Filed: June 27, 2002
    Publication date: February 6, 2003
    Inventors: Kenichi Matsunaga, Ganji Abe, Kazuo Murakami, Kazuo Asada, Tadashi Shiraishi, Shigeru Kunishima