Patents by Inventor Hirosi Iwata

Hirosi Iwata 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).

  • Press for paper machine with smoothing press, and paper production method
    Patent number: 7601244
    Abstract: The present invention relates to a smoothing press for a paper machine and a press for a paper machine with a smoothing press as well as a paper production method. At a final stage of a press section (2) of a paper machine, wet web (1) with one face thereof retained by elastic members (13, 14) is pressed by the nip section of a pair of press rolls (12a, 12b) having a surface formed from a rigid material.
    Type: Grant
    Filed: May 12, 2004
    Date of Patent: October 13, 2009
    Assignee: Oji Paper Co., Ltd.
    Inventors: Hidemasa Iijima, Takasi Bando, Hirosi Iwata, Daisuke Goto, Kotaro Shinoda
  • Smoothing press of paper machine, press for paper machine with smoothing press, and paper manufacturing method
    Publication number: 20070023155
    Abstract: The present invention relates to a smoothing press for a paper machine and a press for a paper machine with a smoothing press as well as a paper production method. At a final stage of a press section (2) of a paper machine, wet web (1) with one face thereof retained by elastic members (13, 14) is pressed by the nip section of a pair of press rolls (12a, 12b) having a surface formed from a rigid material.
    Type: Application
    Filed: May 12, 2004
    Publication date: February 1, 2007
    Inventors: Hidemasa Iijima, Takasi Bando, Hirosi Iwata, Daisuke Goto, Kotaro Shinoda