Patents by Inventor Nobunori Ohji

Nobunori Ohji 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).

  • Coating apparatus
    Patent number: 6033476
    Abstract: A coating apparatus comprises an upstream lip and a downstream lip defining a slot between the two lips through which a coating liquid can be extruded; and a pair of guide rollers disposed on opposite side of the lips for guiding a support to move past the lips such that the coating liquid can be applied thereto, wherein the downstream lip has a coating operation surface facing and curved toward the support and, a curvature k of the curved coating operation surface being given asP.sub.2 /T.ltoreq.k.ltoreq.P.sub.1 /Twhere T represents the tension in the coated portion of the support, and P.sub.1 and P.sub.2 represent the pressures of the coating liquid acting on the support at upstream and downstream ends of said coating operation surface.
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: March 7, 2000
    Assignee: Kao Corporation
    Inventors: Junichi Masukawa, Nobuyuki Isshiki, Nobunori Ohji, Eiten Chin, Toshiharu Numata
  • Coating apparatus
    Patent number: 5534065
    Abstract: A coating apparatus comprises an upstream lip and a downstream lip defining a slot between the two lips through which a coating liquid can be extruded; and a pair of guide rollers disposed on opposite side of the lips for guiding a support to move past the lips such that the coating liquid can be applied thereto, wherein the downstream lip has a coating operation surface facing and curved toward the support and, a curvature k of the curved coating operation surface being given asP.sub.2 /T.ltoreq.k.ltoreq.P.sub.1 /Twhere T represents the tension in the coated portion of the support, and P.sub.1 and P.sub.2 represent the pressures of the coating liquid acting on the support at upstream and downstream ends of said coating operation surface.
    Type: Grant
    Filed: August 23, 1994
    Date of Patent: July 9, 1996
    Assignee: Kao Corporation
    Inventors: Junichi Masukawa, Nobuyuki Isshiki, Nobunori Ohji, Eiten Chin, Toshiharu Numata