Patents by Inventor Akihiko Iihara

Akihiko Iihara 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).

  • Directly imageable waterless planographic printing plate precursor
    Patent number: 6964841
    Abstract: The invention is a directly imageable waterless planographic printing plate precursor comprising: at least a heat insulating layer, a heat sensitive layer, and an ink repellent layer that are provided in that order on a substrate, wherein a transmittance of the heat insulating layer for a light having a wavelength within a range of 400 to 650 nm is at most 15% over the entire range of the wavelength. The invention provides a directly imageable waterless planographic printing plate precursor that allows measurement of the dot area ratio on the printing plate with a densitometer or the like.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: November 15, 2005
    Assignee: Toray Industries, Inc.
    Inventors: Akihiko Iihara, Ken Kawamura, Mitsuru Suezawa, Kimikazu Nagase