Patents by Inventor Toshihiko EZAKI

Toshihiko EZAKI 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).

  • Apparatus and method for manufacturing thin uneven member
    Patent number: 9821360
    Abstract: There is provided an apparatus for manufacturing a thin uneven member. The apparatus includes a lower die fixed to a press bed, an upper die fixed to a ram and disposed opposed to the lower die, and a pressure-drive unit which presses the ram using a servo motor as a power source, the servo motor being fixed to a first support member. The pressure-drive unit includes a motion converting mechanism which converts a rotation of the servo motor to a linear motion of a lifting member, and a cylinder block connected and fixed to the first support member and including first and second pistons arranged in series vertically, wherein the first piston is connected to the lifting member through a second support member, and the second piston, larger in diameter than the first piston, presses the ram.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: November 21, 2017
    Assignee: MITSUI HIGH-TEC, INC.
    Inventors: Satoshi Matsubayashi, Kiyohisa Maki, Toshihiko Ezaki, Takeshi Sato, Kouji Fukunaga
  • APPARATUS AND METHOD FOR MANUFACTURING THIN UNEVEN MEMBER
    Publication number: 20150280252
    Abstract: There is provided an apparatus for manufacturing a thin uneven member. The apparatus includes a lower die fixed to a press bed, an upper die fixed to a ram and disposed opposed to the lower die, and a pressure-drive unit which presses the ram using a servo motor as a power source, the servo motor being fixed to a first support member. The pressure-drive unit includes a motion converting mechanism which converts a rotation of the servo motor to a linear motion of a lifting member, and a cylinder block connected and fixed to the first support member and including first and second pistons arranged in series vertically, wherein the first piston is connected to the lifting member through a second support member, and the second piston, larger in diameter than the first piston, presses the ram.
    Type: Application
    Filed: January 22, 2015
    Publication date: October 1, 2015
    Applicant: MITSUI HIGH-TEC, INC.
    Inventors: Satoshi MATSUBAYASHI, Kiyohisa MAKI, Toshihiko EZAKI, Takeshi SATO, Kouji FUKUNAGA