Patents by Inventor Takaaki Koro

Takaaki Koro 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).

  • Patent number: 6824844
    Abstract: An ink jet recording medium, capable of recording thereon ink images having excellent clarity and sharpness without blotting of ink images, includes an ink receiving layer formed on a support material and containing xerogel porous pigment particle, and has a such a specific feature that when a plurality of ink dots are formed each by successively jetting three coloring ink droplets different in color from each other and equal in droplet volume to each other toward a point of the ink receiving layer, to successively superpose the jetted three coloring ink droplets and to form a mixed colored dot in the point, the average size of the resultant dots is 125% or less based on an average dot size of ink dots each formed from two different coloring ink droplets.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: November 30, 2004
    Assignee: OJI Paper Co. Ltd.
    Inventors: Hiromasa Kondo, Masaki Nishimura, Takaaki Koro