Patents by Inventor Kazue Kanekiyo

Kazue Kanekiyo 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 forming color images
    Patent number: 4505749
    Abstract: In a process for forming color images using more than one kind of color ink including black ink, the dyes in the color ink used have similar chromatographic characteristics. Preferably any difference of the Rf value of paper chromatography between any of the two dyes is not more than 0.30.
    Type: Grant
    Filed: June 24, 1983
    Date of Patent: March 19, 1985
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazue Kanekiyo, Masatsune Kobayashi, Yasumasa Yokoyama, Tsuyoshi Eida, Tomoko Komori, Shoji Koike