Patents by Inventor Keizi Saeki

Keizi Saeki 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).

  • Radiation curable coating composition comprising three or more (meth) acryloyl polyfunctional monomer, phenol novolak epoxy (meth) acrylate oligomer, and a photoinitiator
    Patent number: 4404075
    Abstract: There is provided a coating composition (B) consisting essentially of:a composition (A) anda photopolymerization initiating effective amount of a photoinitiator,said composition (A) containing:(i) 80 to 90% by weight of at least one polyfunctional monomer having three or more (meth)acryloyloxy radicals per molecule,(ii) 5 to 10% by weight of at least one acrylic monomer having two or less functional groups and(iii) 5 to 10% by weight of a phenol novolak epoxy (meth)acrylate oligomer of the formula: ##STR1## where, X.dbd.H, CH.sub.3,X.dbd.H, CH.sub.3, Br andn=0-8with the proportion of oligomer wherein n of 4.ltoreq.n.ltoreq.8 is more than 20 wt % with respect to the total amount of the novolak epoxy (meth)acrylate.
    Type: Grant
    Filed: November 30, 1982
    Date of Patent: September 13, 1983
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Junji Ikeda, Keizi Saeki, Tamotsu Wakahata, Takao Inoue