Patents by Inventor Takefumi Nomura

Takefumi Nomura 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).

  • Alcohol-based printing ink composition
    Patent number: 9523009
    Abstract: An alcohol-based printing ink composition comprising: a polyurethane urea resin (D) that is obtained by a reaction of polyol (A), diisocyanate (B), and a chain extender (C); a coloring agent (E); and a medium comprising an alcohol (F) and water, wherein the polyol (A) contains polyether polyol (A1) and polyester polyol (A2), and the medium comprises 75% by weight or more of alcohol (F).
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: December 20, 2016
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYO INK CO., LTD.
    Inventors: Toru Oya, Harunori Narihiro, Takefumi Nomura
  • ALCOHOL-BASED PRINTING INK COMPOSITION
    Publication number: 20130289185
    Abstract: An alcohol-based printing ink composition comprising: a polyurethane urea resin (D) that is obtained by a reaction of polyol (A), diisocyanate (B), and a chain extender (C); a coloring agent (E); and a medium comprising an alcohol (F) and water, wherein the polyol (A) contains polyether polyol (A1) and polyester polyol (A2), and the medium comprises 75% by weight or more of alcohol (F).
    Type: Application
    Filed: December 27, 2011
    Publication date: October 31, 2013
    Applicants: TOYO INK CO., LTD., TOYO INK SC HOLDINGS CO., LTD.
    Inventors: Toru Oya, Harunori Narihiro, Takefumi Nomura