Patents by Inventor Keiji Eto

Keiji Eto 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).

  • Method of producing pulp moldings
    Patent number: 6918997
    Abstract: A method of producing a pulp molded article comprising the steps of assembling splits (10, 11) each having a suction passageway and a papermaking screen (5) into a papermaking mold (1), filling the cavity of the papermaking mold (1) with a pulp slurry, discharging the liquid component of the pulp slurry through the suction passageway to deposit pulp fiber on the inner side of the papermaking screen (5) into an undried wet molded article, and dewatering the undried molded article deposited on the inner side of the papermaking screen (5), wherein the splits (10, 11) each have a large number of flow passageways (2) for feeding a purging fluid for cleaning the papermaking screen (5), and the purging fluid is ejected from the outer side of the papermaking screen (5) toward the cavity through the flow passageways (2) during the filling with the pulp slurry.
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: July 19, 2005
    Assignee: Kao Corporation
    Inventors: Minoru Goto, Keiji Eto
  • Mold for papermaking
    Patent number: 6860461
    Abstract: A papermaking mold which includes a papermaking part of a prescribed shape, a peripheral part extending outward from the peripheral edge of the papermaking part, and a net covering the papermaking part and at least part of the peripheral part. A fixing member is disposed on the periphery of the net, and the fixing member is fixed to the peripheral part to fix the net by the fixing member.
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: March 1, 2005
    Assignee: Kao Corporation
    Inventors: Kenichi Otani, Yoshiaki Kumamoto, Tokuo Tsuura, Minoru Goto, Keiji Eto
  • Molded pulp product, and method and apparatus for production thereof
    Publication number: 20040045690
    Abstract: A pulp molded article having a pulp fiber layer (2) of single layer structure which is formed by papermaking from a single raw material composition and has a density distribution in the thickness direction thereof. The pulp fiber layer (2) has such a density distribution that the density increases or decreases in the thickness direction thereof.
    Type: Application
    Filed: June 30, 2003
    Publication date: March 11, 2004
    Inventors: Keiji Eto, Yoshiaki Kumamoto, Masataka Ishikawa, Akira Nonomura
  • Method of producing pulp moldings
    Publication number: 20030150583
    Abstract: A method of producing a pulp molded article comprising the steps of assembling splits (10, 11) each having a suction passageway and a papermaking screen (5) into a papermaking mold (1), filling the cavity of the papermaking mold (1) with a pulp slurry, discharging the liquid component of the pulp slurry through the suction passageway to deposit pulp fiber on the inner side of the papermaking screen (5) into an undried wet molded article, and dewatering the undried molded article deposited on the inner side of the papermaking screen (5), wherein the splits (10, 11) each have a large number of flow passageways (2) for feeding a purging fluid for cleaning the papermaking screen (5), and the purging fluid is ejected from the outer side of the papermaking screen (5) toward the cavity through the flow passageways (2) during the filling with the pulp slurry.
    Type: Application
    Filed: March 31, 2003
    Publication date: August 14, 2003
    Inventors: Minoru Goto, Keiji Eto