Patents by Inventor Toshifumi Hata

Toshifumi Hata 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: 4993906
    Abstract: A green tire feed system provided between the forming process and the vulcanizing process in a tire manufacturing installation. This green tire feed system comprises pallets, each adapted to be charged with green tires, pallet loading tables disposed respectively in front of the respective vulcanizing machines installed in a row, shelves disposed in opposition to the pallet loading tables, a stacker crane adapted to travel through a passageway formed between a row of the pallet loading tables and a row of the shelves, a station for receiving pallets sent from forming machines and from the pallet loading tables, and control devices for controlling the stacker crane. The stacker crane is controlled by the control means to transport a pallet charged with green tires form the station to the shelves and from the shelves to the pallet loading table, and to transport an empty pallet from the pallet loading table to the station.
    Type: Grant
    Filed: August 17, 1989
    Date of Patent: February 19, 1991
    Assignee: Bridgestone Corporation
    Inventors: Seiichiro Nisimura, Toshifumi Hata, Kenji Yamashita
  • Patent number: 4773810
    Abstract: An automatic transport system for green tires between a forming process and a vulcanizing process in a tire manufacturing installing in which different kinds of tires are manufactured through a forming process of making use of a plurality of forming machines and a subsequent vulcanizing process making use of a plurality of vulcanizing machines. The automatic transport system comprises pallets each adapted to be charged with four or more formed green tires and to be used for transporting them as one unit. A temporary storage is interposed between a forming machine group and a vulcanizing machine group for temporarily storing the pallets at predetermined locations. Forming side unmanned transport trucks circulate between the forming machine group and the temporary storage with the pallet loaded thereon. Vulcanizing side unmanned transport trucks circulate between the temporary storage and the vulcanizing machine group with the pallet loaded thereon.
    Type: Grant
    Filed: April 17, 1987
    Date of Patent: September 27, 1988
    Assignee: Bridgestone Corporation
    Inventors: Seiichiro Nishimura, Toshifumi Hata, Kenji Yamashita