Patents by Inventor Yutaka Kurbayashi

Yutaka Kurbayashi 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).

  • Image forming method, and ink set and ink-jet machinery used therein
    Patent number: 5700314
    Abstract: An ink set comprising a combination of a liquid composition containing a cationic substance, with a yellow ink, a cyan ink and magenta ink, wherein said three inks each contain a water soluble anionic dye and are capable of affording a chromaticity CIE L*a*b* to a black image presented on a recording medium by using these inks in combination within the range of the numerical expressions:10.ltoreq.L*.ltoreq.30,0.ltoreq.a*.ltoreq.7,and-10.ltoreq.b*.ltoreq.0.
    Type: Grant
    Filed: March 28, 1995
    Date of Patent: December 23, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yutaka Kurbayashi, Katsuhiro Shirota, Katsuhiko Takahashi