Patents by Inventor Chihiro Eguchi

Chihiro Eguchi 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).

  • Method of manufacturing photosensitive printing plates comprising applying a powdered surface
    Patent number: 5028512
    Abstract: Printing plates having a photosensitive layer coated on a support wherein said photosensitive layer contains a powdered solid adhered to the surface of said plate by means of powdering followed by the application of heat or solvent before exposure. Said powders are capable of being removed from said surface during the developing process.
    Type: Grant
    Filed: November 3, 1989
    Date of Patent: July 2, 1991
    Assignee: Konica Corporation and Mitsubishi Kasei Corporation
    Inventors: Toshio Nagatani, Minoru Seino, Toru Okamoto, Chihiro Eguchi
  • Developer for lithographic printing plate
    Patent number: 4267260
    Abstract: A developer for use with a lithographic photo-sensitive medium of a polyether resin, comprising a compound of the formula:RO--CH.sub.2 --CH.sub.2 --O--.sub.k R.sup.1orROCH.sub.2 CH.sub.2 OR.sup.2(wherein R represents an alkyl group with carbon number of 1 to 4, R.sup.1 represents hydrogen or an acyl group, R.sup.2 represents an acyl group with a carbon number of 2 to 5, and k represents an integer of 2 to 3).
    Type: Grant
    Filed: July 19, 1976
    Date of Patent: May 12, 1981
    Assignee: Mitsubishi Chemical Industries, Ltd.
    Inventors: Konoe Miura, Chihiro Eguchi, Yoshihiro Takahashi, Akinobu Oshima, Kazuo Torige, Shinichi Bunya
  • Photosensitive composition
    Patent number: 4083725
    Abstract: A photosensitive composition is prepared from a mixture of a cinnamic acid photosensitive resin and a halogen-substituted benzanthrone sensitizer.
    Type: Grant
    Filed: April 19, 1976
    Date of Patent: April 11, 1978
    Assignee: Mitsubishi Chemical Industries Ltd.
    Inventors: Hideo Fukutani, Konoe Miura, Chihiro Eguchi, Yoshihiro Takahashi, Kazuo Torige