Patents by Inventor Yoshiomi Nakaya

Yoshiomi Nakaya 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: 5985425
    Abstract: An ink-jet recording film capable of exhibiting excellent ink fixing behavior in ink-jet printing with a water-base ink along with good water resistance of the recording layer, which has a double-layered structure, as formed on the surface of a plastic substrate film, consisting of (A) an ink-receptive layer comprising a water-soluble resin, e.g., polyvinyl alcohol, polyvinyl acetal and/or polyvinyl pyrrolidone, a surface-roughening agent which is a combination of two different silica powders distinguishable in the low and high values of oil absorption in a specified weight proportion and a crosslinking agent for the water-soluble resin and (B) an overcoating layer for dot-profile control consisting of an acrylic resin of the quaternary ammonium salt type.
    Type: Grant
    Filed: March 31, 1998
    Date of Patent: November 16, 1999
    Assignee: SOMAR Corporation
    Inventors: Tadashi Tomizawa, Yoshiomi Nakaya, Naoki Sakazume, Kenji Akuta