Patents Assigned to Sakata Inx Corporation
  • Patent number: 10543695
    Abstract: A photocurable white ink composition for inkjet printing contains: a photopolymerizable compound that contains: virtually no vinyl formamide; 0.1 to 20 percent by mass of a monofunctional monomer containing an ether group relative to the total mass of the photopolymerizable component; 35 to 70 percent by mass of a monofunctional monomer containing a cyclic structure relative to the total mass of the photopolymerizable component; 5 to 40 percent by mass of a multifunctional monomer relative to the total mass of the photopolymerizable component; an acyl phosphine oxide photopolymerization initiator by 3 to 20 percent by mass relative to the total mass of the photopolymerizable component; and titanium dioxide; wherein, the viscosity of said photocurable white ink composition for inkjet printing is 100 mPa·s or less at 25° C.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: January 28, 2020
    Assignee: Sakata Inx Corporation
    Inventors: Tadashi Hirose, Kazuhiro Fuke
  • Patent number: 5556925
    Abstract: Disclosed is a polyurethane resin which is a reaction product of a high molecular weight polyol compound having a molecular weight of 3,000 to 10,000, a low molecular weight polyol compound having a molecular weight of not more than 200, an organic diisocyanate compound, a chain extender, and optionally a reaction terminating agent, wherein the whole of the high molecular weight polyol compound and the low molecular weight polyol compound has an average molecular weight of 1,500 to 2,700; the isocyanate index (I.I.) of the organic diisocyanate compound to the high molecular weight polyol compound satisfies the following condition: I.I.>2.0; and the nitrogen content of the polyurethane resin derived from the isocyanate group of the organic diisocyanate compound is from 1.30 to 1.95% by weight.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: September 17, 1996
    Assignee: Sakata Inx Corporation
    Inventors: Katsumi Kousaka, Takahiko Inoue, Takahito Miyamoto