Patents by Inventor Dai Inagaki

Dai Inagaki 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).

  • Publication number: 20090092801
    Abstract: A nonaqueous ink composition for an ink jet recording, comprising (A) a urethane resin dispersant with an acidic functional group, (B) a pigment, and (C) an organic solvent [and optionally (D) a thermal reactive compound], characterized in that the urethane resin dispersant (A) is a branched urethane resin dispersant prepared by polymerizing a terminal-isocyanate-containing compound (p), which has been prepared by reacting (a) a polyisocyanate having three or more isocyanate groups, and (b) a monoalcohol, under the condition that a molar ratio (Ma/Mb) of the number of moles (Ma) of isocyanate groups (NCO) from the polyisocyanate (a) to the number of moles (Mb) of hydroxyl groups (OH) from the monoalcohol (b) is 3/2 to 3/0.
    Type: Application
    Filed: April 24, 2007
    Publication date: April 9, 2009
    Applicant: TOYO INK MANUFACTURING CO., LTD.
    Inventors: Shinichi Sato, Seiji Aida, Atsushi Nakazato, Tsutomu Hiroshima, Yoshikazu Tanaka, Dai Inagaki, Takayuki Nogami, Tomonori Ikegami