Patents by Inventor Etsuji Tanaka

Etsuji Tanaka 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).

  • Process for making lithographic printing plate
    Patent number: 6541176
    Abstract: There is disclosed a process for making a lithographic printing plate, which comprises subjecting a lithographic printing material having at least a silver halide emulsion layer and a physical development nuclei layer on a support and having a sensitivity at a wavelength of 400 nm to 440 nm of 20 &mgr;J/cm2 or less, and having substantially no sensitivity at a wavelength of 450 nm or longer to scanning exposure by a scanning type exposure device on which a violet laser diode is mounted, and then subjecting to developing treatment.
    Type: Grant
    Filed: April 2, 2001
    Date of Patent: April 1, 2003
    Assignee: Mitsubishi Paper Mills, Ltd.
    Inventors: Takashi Miyazaki, Satoshi Shimonodan, Etsuji Tanaka, Motozo Yamano
  • Process for making lithographic printing plate
    Publication number: 20030022096
    Abstract: There is disclosed a process for making a lithographic printing plate, which comprises subjecting a lithographic printing material having at least a silver halide emulsion layer and a physical development nuclei layer on a support and having a sensitivity at a wavelength of 400 nm to 440 nm of 20 &mgr;J/cm2 or less, and having substantially no sensitivity at a wavelength of 450 nm or longer to scanning exposure by a scanning type exposure device on which a violet laser diode is mounted, and then subjecting to developing treatment.
    Type: Application
    Filed: April 2, 2001
    Publication date: January 30, 2003
    Inventors: Takashi Miyazaki, Satoshi Shimonodan, Etsuji Tanaka, Motozo Yamano