Patents by Inventor Jun-ichi Takemura

Jun-ichi Takemura 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).

  • Patent number: 5141380
    Abstract: A safety arrangement for an automatic warehousing facility is disclosed. A traveling crane adapted to perform goods take-in and take-out operations is provided which is movable on a path provided between and extending along a plurality of three-dimensional racks arranged in parallel for storage of goods. There is provided a safety arrangement for safeguarding any operator from possible danger when he inadvertently enters the path of crane movement while the crane is in automatic operation, and for preventing the crane from moving when the operator is present within the path of crane movement. The safety arrangement includes a device for stopping the crane when an open/close door of a safety enclosure provided at one end of the crane movement path is opened.
    Type: Grant
    Filed: November 19, 1990
    Date of Patent: August 25, 1992
    Assignee: Daifuku Co., Ltd.
    Inventors: Toshihiko Kato, Takeo Nagaoka, Jun-ichi Takemura, Kazushi Tsujimoto
  • Patent number: 5141381
    Abstract: A safety arrangement for an automatic warehousing facility is disclosed. A traveling crane adapted to perform goods take-in and take-out operations is provided which is movable on a path provided between and extending along a plurality of three-dimensional racks arranged in parallel for storage of goods. There is provided a safety arrangement for safeguarding any operator from possible danger when he inadvertently enters the path of crane movement while the crane is in automatic operation, and for preventing the crane from moving when the operator is present within the path of crane movement. The safety arrangement includes a device for stopping the crane when an open / close door of a safety enclosure provided at one end of the crane movement path is opened.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: August 25, 1992
    Assignee: Daifuku Co., Ltd.
    Inventors: Toshihiko Kato, Takeo Nagaoka, Jun-ichi Takemura, Kazushi Tsujimoto