Patents by Inventor Kuniaki Fukuhara

Kuniaki Fukuhara 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: 6224971
    Abstract: Proposed are novel ink-jet recording sheet having high water resistance, excellent transparency of the ink-receptive layer, ink absorptivity and color developability as well as the advantages of absence of surface tackiness and blocking and a liquid coating composition for forming the ink-receptive coating layer of the recording sheet. The liquid coating composition comprises, as a uniform blend in an aqueous medium: (A) an acetoacetylated polyvinyl alcohol; (B) a polyvinylpyrrolidone resin; and (C) an acidic aqueous dispersion of a colloidal silica, each in a specified weight proportion, in a limited weight proportion.
    Type: Grant
    Filed: February 2, 1998
    Date of Patent: May 1, 2001
    Assignee: Somar Corporation
    Inventors: Tadashi Tomizawa, Sachiko Suzuki, Kuniaki Fukuhara, Naoki Sakazume