Patents by Inventor Ryuzo Itabashi

Ryuzo Itabashi 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 and a system for color separation
    Patent number: 4180330
    Abstract: Light beams scans patterns of a subject copy, being reflected therefrom, and being converted into pulsating electrical signals. Color borders between two different colored patterns are detected based on the pulsating signals. On the other hand, a color of a predetermined scanned line following each of the color borders is sensed for determining the sensed color as a color between the adjacent color borders.
    Type: Grant
    Filed: May 18, 1977
    Date of Patent: December 25, 1979
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroaki Kotera, Hiroyoshi Tsuchiya, Ryuzo Itabashi, Kunio Yoshida, Tsutomu Shibata, Yukifumi Tsuda, Yoshimitsu Kanno, Heijiro Hayami, Haruko Sugita