Patents by Inventor Hirokazu Nakamae

Hirokazu Nakamae 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: 7004002
    Abstract: A strip rolling mill includes a pair of upper and lower work rolls for rolling a strip, intermediate rolls for supporting each of the paired work rolls, and back-up rolls for supporting each of the intermediate rolls. Each of the work rolls is provided with a tapered portion at one end thereof so that the tapered portions of the work rolls are on opposite sides of roll bodies thereof with respect to roll axis directions. When the material with a constant width is being rolled, axial positions of the work rolls are set at appropriate positions and axial positions of the intermediate rolls are changed to control a thickness distribution in a width direction of the material being rolled. This arrangement significantly improves an edge drop and at the same time minimizes edge drop variations.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: February 28, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Hidetoshi Nishi, Hirokazu Nakamae, Kenichi Yasuda, Kenji Horii, Youichi Matsui, Ichirou Maeno, Hideo Kobayashi, Haruyuki Yabe
  • Patent number: 6868707
    Abstract: A strip rolling mill includes a pair of upper and lower work rolls for rolling a strip, intermediate rolls for supporting each of the paired work rolls, and back-up rolls for supporting each of the intermediate rolls. Each of the work rolls is provided with a tapered portion at one end thereof so that the tapered portions of the work rolls are on opposite sides of roll bodies thereof with respect to roll axis directions. When the material with a constant width is being rolled, axial positions of the work rolls are set at appropriate positions and axial positions of the intermediate rolls are changed to control a thickness distribution in a width direction of the material being rolled. This arrangement significantly improves an edge drop and at the same time minimizes edge drop variations.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: March 22, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Hidetoshi Nishi, Hirokazu Nakamae, Kenichi Yasuda, Kenji Horii, Youichi Matsui, Ichirou Maeno, Hideo Kobayashi, Haruyuki Yabe
  • Publication number: 20040206147
    Abstract: A strip rolling mill includes a pair of upper and lower work rolls for rolling a strip, intermediate rolls for supporting each of the paired work rolls, and back-up rolls for supporting each of the intermediate rolls. Each of the work rolls is provided with a tapered portion at one end thereof so that the tapered portions of the work rolls are on opposite sides of roll bodies thereof with respect to roll axis directions. When the material with a constant width is being rolled, axial positions of the work rolls are set at appropriate positions and axial positions of the intermediate rolls are changed to control a thickness distribution in a width direction of the material being rolled. This arrangement significantly improves an edge drop and at the same time minimizes edge drop variations.
    Type: Application
    Filed: May 19, 2004
    Publication date: October 21, 2004
    Applicant: Hitachi, Ltd.
    Inventors: Hidetoshi Nishi, Hirokazu Nakamae, Kenichi Yasuda, Kenji Horii, Youichi Matsui, Ichirou Maeno, Hideo Kobayashi, Haruyuki Yabe
  • Publication number: 20020162378
    Abstract: A strip rolling mill includes a pair of upper and lower work rolls for rolling a strip, intermediate rolls for supporting each of the paired work rolls, and back-up rolls for supporting each of the intermediate rolls. Each of the work rolls is provided with a tapered portion at a vicinity to one end thereof in such a way that the tapered portions of the work rolls are on opposite sides of roll bodies thereof with respect to roll axis directions. The rolling method for the strip rolling mill comprises the steps of: when the material with a constant width is being rolled, setting axial positions of the work rolls at appropriate positions and changing axial positions of the intermediate rolls to control a thickness distribution in a width direction of the material being rolled.
    Type: Application
    Filed: August 30, 2001
    Publication date: November 7, 2002
    Inventors: Hidetoshi Nishi, Hirokazu Nakamae, Kenichi Yasuda, Kenji Horii, Youichi Matsui, Ichirou Maeno, Hideo Kobayashi, Haruyuki Yabe