Patents by Inventor Naoyuki Yoshitani

Naoyuki Yoshitani 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: 5018939
    Abstract: An apparatus for separating piled iron sheets one by one has a plurality of magnets arranged vertically with the same magnetic poles thereof facing each other. Magnetic fluxes generated from the magnets react with each other at a position between the magnets and flow horizontally and then vertically, with the result that opposite, vertically separating forces act on two superposed iron sheets.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: May 28, 1991
    Assignees: Toyota Jidosha Kabushiki Kaisha, Sanmei Electric Co., Ltd.
    Inventors: Tomomi Kishi, Kanshi Nonami, Masahiko Takeuchi, Naoyuki Yoshitani, Hideo Niwa
  • Patent number: 4893858
    Abstract: A movable yoke-type lifting magnet device including a core having first and second ends and at least one yoke provided so as to be movable relative to the core in a vertical direction at each of the first and second ends of the core. A movable framework and a drive member for driving the movable framework relative to the core are further provided for lifting and lowering each yoke relative to the core. When the movable framework is driven upwards, the movable framework engages with each yoke and forcibly lifts each yoke. When the movable framework is driven downwards, the movable framework releases the yokes to allow them to move downwards by their own weight and to be gently brought into contact with a workpiece to be lifted.
    Type: Grant
    Filed: June 24, 1988
    Date of Patent: January 16, 1990
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Naoyuki Yoshitani, Mitsunori Minamisawa, Tomomi Kishi