Patents by Inventor Katsuo Kagaya

Katsuo Kagaya 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).

  • Method of injection molding a reinforced article
    Patent number: 5102605
    Abstract: A method of making a molded article by injecting into a mold filled with reinforcing material a resin composition including (a) 40 to 80% by weight of a resin including an oligomer having a number average molecular weight of 900 to 3,000 in terms of polystyrene equivalent obtained by gel permeation chromatography and having two or more terminal (meth)acrylate groups and an unsaturated polyester, and (b) 20 to 60% by weight of methyl (meth)acrylate monomer.
    Type: Grant
    Filed: August 21, 1991
    Date of Patent: April 7, 1992
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Katsuo Kagaya, Yoshifumi Hama, Shichinosuke Ito
  • Resin composition and method of manufacturing the same
    Patent number: 5098950
    Abstract: Disclosed is a thermosetting resin composition which includes(a) an unsaturated polyester,(b) a polymer having a (meth)acrylate group only at one or both terminals of its main chain,(c) a poly(meth)acrylate oligomer,(d) a styrene monomer, and(e) a methyl methacrylate monomer.Also, a method of molding the resin is disclosed, which includes dividing the thermosetting resin composition into two parts, adding a curing agent to one of the two parts and a curing accelerator to another to form two partial compositions, introducing the two partial compositions into a mold, and allowing the two partial compositions to mix with each other and cure.
    Type: Grant
    Filed: February 15, 1990
    Date of Patent: March 24, 1992
    Inventors: Katsuo Kagaya, Tadao Saito, Shichinosuke Ito
  • Resin composition
    Patent number: 5084508
    Abstract: A resin composition comprising(a) 40 to 80% by weight of a resin comprisingan oligomer having a number average molecular weight of 900 to 3,000 in terms of polystyrene equivalent obtained by gel permeation chromatography and having two or more terminal (meth)acrylate groups andan unsaturated polyester, and(b) 20 to 60% by weight of methyl (meth)acrylate monomer.
    Type: Grant
    Filed: April 28, 1989
    Date of Patent: January 28, 1992
    Assignee: Dainippon Ink & Chemicals, Inc.
    Inventors: Katsuo Kagaya, Yoshifumi Hama, Shichinosuke Ito