Patents by Inventor Tetsuji Hamada

Tetsuji Hamada 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).

  • Automatic storage/retrieval apparatus for articles
    Patent number: 5135344
    Abstract: Inner pickers (6) are provided for respective stages of racks (4) of storage areas (2, 3) to be movable on rails (7). Operations of the inner pickers (6) are independently controlled in the respective rack stages by optical communication through optical communication units (9).
    Type: Grant
    Filed: September 27, 1990
    Date of Patent: August 4, 1992
    Assignee: Kabushikkaisha Itoki Kosakusho
    Inventors: Hiroshi Kita, Shigeki Tsuchida, Tetsuji Hamada
  • Automatic storage/retrieval apparatus for articles
    Patent number: 5002449
    Abstract: Inner pickers (6) are provided for respective stages of racks (4) of storage areas (2, 3) to be movable on rails (7). Operations of the inner pickers (6) are independently controlled in the respective rack stages by optical communication through optical communication units (9).
    Type: Grant
    Filed: August 15, 1988
    Date of Patent: March 26, 1991
    Assignee: Kabushikikaisha Itoki Kosakusho
    Inventors: Hiroshi Kita, Shigeki Tsuchida, Tetsuji Hamada