Patents by Inventor Keiko Ishidai

Keiko Ishidai 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).

  • Photopolymerizable composition, light sensitive planographic printing plate material and manufacturing method of planographic printing plate
    Publication number: 20060147840
    Abstract: Disclosed is a photopolymerizable composition containing an addition-polymerizable ethylenically unsaturated compound, a photopolymerization initiator, a polymer binder, and a sensitizing dye represented by the following formula (A),
    Type: Application
    Filed: January 3, 2006
    Publication date: July 6, 2006
    Inventor: Keiko Ishidai
  • Thermally processable photosensitive material, image forming method and antifoggant
    Patent number: 6248512
    Abstract: An image forming method for a thermally processable photosensitive material is disclosed, comprising exposing a thermally processable photosensitive material to light using a laser light source, and subjecting the exposed photosensitive material to thermal processing, wherein the thermally processable photosensitive material comprises a support having thereon an organic silver salt, a binder, a photosensitive silver halide, and a compound containing nitrogen covalently bonded to halogen represented by the following formula or a nitrogen-containing acyclic compound associated with a pair of halogen atoms represented by the following formula
    Type: Grant
    Filed: April 8, 1999
    Date of Patent: June 19, 2001
    Assignee: Konica Corporation
    Inventors: Norio Miura, Keiko Ishidai