Patents by Inventor Kazuyoshi Aoshima

Kazuyoshi Aoshima 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).

  • Maleimide copolymer, maleimide block copolymer and method for producing maleimide block copolymer
    Patent number: 5164451
    Abstract: The maleimide copolymer of the invention is of the class of N-substituted maleimide copolymer such as N-alkyl or N-aromatic maleimide copolymer having peroxy bonds in a molecule, utilizable as a precursor for preparing a maleimide block copolymer and as a modifier for other resins. The maleimide block copolymer, which is useful as a molding material or a thermal resistance improver, is obtained by polymerizing maleimide monomers in the presence of a polymeric peroxide followed by polymerizing vinyl monomers.
    Type: Grant
    Filed: June 2, 1992
    Date of Patent: November 17, 1992
    Assignee: Nippon Oil and Fats Co., Ltd.
    Inventors: Kenji Kato, Kazunori Doiuchi, Yasumi Koinuma, Yukinori Haruta, Kazuyoshi Aoshima
  • Peroxycarbonate group-containing copolymer and method for manufacture thereof
    Patent number: 4658001
    Abstract: A random copolymer comprising specific groups represented by the general formula: ##STR1## and specific peroxycarbonate structural units represented by the general formula: ##STR2## is produced by a method which comprises causing a compound of the formula: ##STR3## to react with a compound of the formula: ##STR4##
    Type: Grant
    Filed: October 4, 1985
    Date of Patent: April 14, 1987
    Assignee: Nippon Oils & Fats Co., Ltd.
    Inventors: Kenji Kato, Yuji Okada, Kazuyoshi Aoshima
  • 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