Patents by Inventor Ikkoh Furukawa

Ikkoh Furukawa 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: 6808804
    Abstract: A highly elaborately designed sheet-shaped laminated structure wherein: (1) the sheet-shaped laminated structure is a sheet-shaped laminated structure composed of at least two layers formed of a thermoplastic resin, (2) at least one outer layer forming a surface of said laminated structure is a layer (B) formed of a transparent resin, (3) at least one layer composing said laminated structure contains a dye, a pigment or a light-diffusing agent and has a monotonous thickness change at least in one direction of a sheet surface of the laminated structure, and (4) said laminated structure shows a continuous change in color tone along the sheet surface when visually observed toward an outer surface of the layer (B) formed of a transparent resin, and use thereof.
    Type: Grant
    Filed: April 16, 2002
    Date of Patent: October 26, 2004
    Assignee: Teijin Chemicals, Ltd.
    Inventors: Toshiaki Hotaka, Kazuma Hisaki, Ikkoh Furukawa
  • Publication number: 20030021917
    Abstract: A highly elaborately designed sheet-shaped laminated structure wherein:
    Type: Application
    Filed: April 16, 2002
    Publication date: January 30, 2003
    Inventors: Toshiaki Hotaka, Kazuma Hisaki, Ikkoh Furukawa
  • Patent number: 5463013
    Abstract: A modified aromatic polycarbonate resin containing at least one substituted phenyloxy group of the formula (I) in an amount of at least 5 mol % of the total amount of terminals, ##STR1## wherein: X is a halogen atom or a monovalent aliphatic hydrocarbon group having 1 to 10 carbon atoms,p is an integer of 0 to 4, and ##STR2## The present invention provide a modified aromatic polycarbonate resin of which the melt fluidity and electric properties are improved without impairing the excellent properties inherent to a polycarbonate resin such as transparency, heat resistance and dimensional stability.
    Type: Grant
    Filed: April 26, 1994
    Date of Patent: October 31, 1995
    Assignee: Teijin Chemicals, Ltd.
    Inventors: Toshimasa Tokuda, Ikkoh Furukawa, Masayoshi Miyauchi