Patents by Inventor Masao Suginaga

Masao Suginaga 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).

  • Ink jet recording medium
    Patent number: 4770934
    Abstract: An ink jet recording medium having at least one ink receptive layer containing synthetic silica of fine particle form as a main pigment, having a recording surface dried by pressing said recording surface against a heated mirror surface, and having ink receptive layer having an absorption capacity of at least 10 g/m.sup.2 is disclosed.That is, the present invention provides an ink jet recording medium which has a gloss without requiring any post-treatment for imparting the gloss, has a high ink absorbability and gives a high color reproducibility and a high color density in printing with a water-base ink, particularly a recording medium for full color ink jet recording having a gloss.
    Type: Grant
    Filed: December 31, 1986
    Date of Patent: September 13, 1988
    Assignee: Mitsubishi Paper Mills, Ltd.
    Inventors: Takeshi Yamasaki, Masao Suginaga