Patents by Inventor Hanae Nakatani

Hanae Nakatani 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: 6899930
    Abstract: According to the present invention, in an ink-jet recording material in which at least two ink-receptive layers containing inorganic fine particles and a hydrophilic binder are provided on a support, an ink-jet recording material wherein an ink-receptive layer (A) nearer to the support contains fumed silica, and an ink-receptive layer (B) apart from the support contains alumina or alumina hydrate is provided.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: May 31, 2005
    Assignee: Mitsubishi Paper Mills Limited
    Inventors: Hideto Kiyama, Yukio Tokunaga, Hanae Nakatani, Norimasa Miyachi
  • Publication number: 20030072925
    Abstract: According to the present invention, in an ink-jet recording material in which at least two ink-receptive layers containing inorganic fine particles and a hydrophilic binder are provided on a support, an ink-jet recording material wherein an ink-receptive layer (A) nearer to the support contains fumed silica, and an ink-receptive layer (B) apart from the support contains alumina or alumina hydrate is provided.
    Type: Application
    Filed: September 13, 2002
    Publication date: April 17, 2003
    Inventors: Hideto Kiyama, Yukio Tokunaga, Hanae Nakatani, Norimasa Miyachi
  • Publication number: 20020045034
    Abstract: There is disclosed an ink-jet recording material comprising a support in which both surfaces of a base paper are covered by a polyolefin resin, and an ink-receptive layer containing inorganic fine particles and a hydrophilic binder provided on the support, wherein the ink-jet recording material satisfies a relation of {(B+C)/A}=0.15 to 0.45, where A is a thickness of the base paper; B is a thickness of the polyolefin resin layer at the surface on which the ink-receptive layer is provided; and C is a thickness of the polyolefin resin layer at the opposite surface to that on which the ink-receptive layer is provided, a density of the base paper is 0.60 to 1.05 g/cm3, A is 50 to 300 &mgr;m, and B is 5 to 25 &mgr;m.
    Type: Application
    Filed: August 22, 2001
    Publication date: April 18, 2002
    Inventors: Hanae Nakatani, Makoto Yoshimura, Ikumi Sudo