Patents by Inventor Masao Oketani

Masao Oketani 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).

  • Packaged product for ink-jet recording material, and recording method and recorded material using ink-jet recording material
    Patent number: 6919110
    Abstract: There are disclosed a packaged product for an ink-jet recording material which has a protective sheet for protecting the surface of the outermost ink-receptive layer of the ink-jet recording material, wherein a protective paper sheet is used as the protective sheet in which a difference between the pH of its surface which makes contact with the surface of the outermost ink-receptive layer and the pH of the surface of the ink-receptive layer is 1.5 or smaller, and a recording method and a recorded material using the ink-jet recording material.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: July 19, 2005
    Assignees: Mitsubishi Paper Mills Limited, Seiko Epson Corporation
    Inventors: Masao Oketani, Yukio Tokunaga, Kazuhito Hori
  • Packaged product for ink-jet recording material, and recording method and recorded material using ink-jet recording material
    Publication number: 20020164463
    Abstract: There are disclosed a packaged product for an ink-jet recording material which has a protective sheet for protecting the surface of the outermost ink-receptive layer of the ink-jet recording material, wherein a protective paper sheet is used as the protective sheet in which a difference between the pH of its surface which makes contact with the surface of the outermost ink-receptive layer and the pH of the surface of the ink-receptive layer is 1.5 or smaller, and a recording method and a recorded material using the ink-jet recording material.
    Type: Application
    Filed: March 1, 2002
    Publication date: November 7, 2002
    Inventors: Masao Oketani, Yukio Tokunaga, Kazuhito Hori