Patents by Inventor Kunitaka Naito

Kunitaka Naito 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).

  • Light-sensitive coating liquid
    Patent number: 5279922
    Abstract: A light-sensitive coating liquid, comprising, as an organic solvent, at least one substance represented by the formulae (I) to (III) shown below: ##STR1## wherein R.sub.1 represents an alkyl group having 1 to 4 carbon atoms, R.sub.2 to R.sub.7 each represent hydrogen atom or an alkyl group having 1 to 3 carbon atoms, with the proviso that at least one of R.sub.2 to R.sub.7 is an alkyl group. The light-sensitive coating liquid of this invention is improved in odor, low in toxicity and yet excellent in storability, and is also suitable for preparation of a light-sensitive lithographic printing plate improved in press life and dye remaining.
    Type: Grant
    Filed: March 4, 1992
    Date of Patent: January 18, 1994
    Assignees: Konica Corporation, Mitsubishi Kasei Corporation
    Inventors: Yutaka Adachi, Kiyoshi Goto, Koji Fukazawa, Kunitaka Naito, Masaaki Tsuchiyama