Patents by Inventor Hidehiko Hagii

Hidehiko Hagii 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 for production of fluorine-containing aromatic derivative
    Patent number: 4631151
    Abstract: A fluorine-containing aromatic derivative is produced by causing a di(haloacyl)peroxide to react upon benzene, a mono-substituted benzene, naphthalene, or a mono-substituted naphthalene thereby introducing an X(CF.sub.2).sub.n -group into the benzene ring or the naphthalene ring.
    Type: Grant
    Filed: February 19, 1985
    Date of Patent: December 23, 1986
    Assignee: Nippon Oil & Fars Co., Ltd.
    Inventors: Michio Kobayashi, Masato Yoshida, Hideo Sawada, Hidehiko Hagii, Kazuyoshi Aoshima
  • Process for producing dicumylperoxide
    Patent number: 4413148
    Abstract: In a process for producing a dicumyl peroxide comprising reacting a cumene hydroperoxide and an .alpha.,.alpha.-dimethylbenzyl alcohol in the presence of an acid catalyst, when a polar solvent exists in the reaction system, the cumene hydroperoxide of the starting material and the dicumyl peroxide of the resulting product are scarcely decomposed.
    Type: Grant
    Filed: February 16, 1982
    Date of Patent: November 1, 1983
    Assignee: Nippon Oil and Fats Co., Ltd.
    Inventors: Mitsukuni Kato, Takuya Demachi, Hidehiko Hagii, Takeshi Arai
  • Process for preparing peroxyesters
    Patent number: 4332740
    Abstract: A high concentration of an aqueous potassium hydroxide is reacted with a hydroperoxide, whereby obtaining a potassium salt of the hydroperoxide is obtained.This potassium hydroperoxide salt can be reacted with an acid halide in a homogeneous reaction system in the presence of non-polar organic solvents, thereby obtaining a non-polar organic solvent solution of novel peroxyesters in high concentration and in high yield.
    Type: Grant
    Filed: January 9, 1981
    Date of Patent: June 1, 1982
    Assignee: Nippon Oil and Fats Co., Ltd.
    Inventors: Kenji Kato, Hidehiko Hagii