Patents by Inventor Takahiro Ozu

Takahiro Ozu 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).

  • Patent number: 5288360
    Abstract: An adhesive resin composition comprising a polymer of a radically polymerizable epoxy resin (I) and a monomer (c), the radically polymerizable epoxy resin (I) being a reaction product between an epoxy resin (a) and a radically polymerizable monomer (b) having a function group reactive to epoxy group or hydroxyl group in said epoxy resin (a), having an equivalent ratio (b)/(a)=0.01.about.0.9 and said monomer (c) being copolymerizable with said radically polymerizable epoxy resin (I) and containing alkyl (meth)acrylate and/or a fluorine-containing unsaturated monomer serving as an indispensable component. The adhesive resin composition has an excellent adhesion between fluorine-contained resins and metal substrates.
    Type: Grant
    Filed: October 9, 1992
    Date of Patent: February 22, 1994
    Assignee: Mitsubishi Petrochemical Company, Ltd.
    Inventors: Kazuhide Hayama, Kazuyuki Hata, Keizo Abe, Takahiro Ozu
  • Patent number: 5234524
    Abstract: There is provided a process for preparing a laminate, comprising the step of adhering a layer of an olefin polymer and a layer of a fluororesin to each other by fusion with the aid of an adhesive polymer, the adhesive polymer being a polymerization product A prepared by copolymerizing a radical-polymerizable olefin polymer B, which is obtained by reacting an olefin polymer (a) having at least one functional group in one molecule thereof with a radical-polymerizable monomer (b) having a functional group which can react with the functional group contained in the olefin polymer (a), with a monomer (c) which comprises as essential components alkyl acrylate, alkyl methacrylate and/or a fluorine-containing unsaturated monomer and is copolymerizable with the radical-polymerizable olefin polymer B, the polymerization product A comprising from 10 to 90 wt. % of the monomer (c).
    Type: Grant
    Filed: October 24, 1991
    Date of Patent: August 10, 1993
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Takahiro Ozu, Keizo Abe, Kazuhide Hayama, Kazuyuki Hata
  • Patent number: 5180766
    Abstract: A resin composition for primer use is described, which contains a copolymer of (I) a radical-polymerizable olefin resin and (c) a monomer copolymerizable with said olefin resin (I) and containing an alkyl (meth)acrylate and/or a fluorine-containing unsaturated monomer as essential ingredients, said radical-polymerizable olefin resin (I) being a product of the reaction of (a) an olefin resin having at least one functional group per molecule with (b) a radical-polymerizable monomer having a functional group reactive to the functional group contained in said olefin resin (a).A primer composition is also described.
    Type: Grant
    Filed: April 19, 1991
    Date of Patent: January 19, 1993
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Kazuhide Hayama, Kazuyuki Hata, Katsuhiko Yamada, Keizo Abe, Takahiro Ozu
  • Patent number: 4746576
    Abstract: A writing screen comprising a substrate and an overlayer on the surface thereof of a film comprising a vinylidene fluoride copolymer resin having a ratio of the existing amount of fluorine atoms (F) and that of carbon atoms (C), F/C, on the surface in the range of 0.6 to 1.5. The screen has excellent marker suitability and resistance to surface damage.
    Type: Grant
    Filed: December 23, 1986
    Date of Patent: May 24, 1988
    Assignee: Mitsubishi Petrochemical Company Limited
    Inventors: Takahiro Ozu, Keizo Abe, Masayoshi Tsujii
  • Patent number: 4582864
    Abstract: A vinylidene fluoride resin composition is disclosed, comprising a vinylidene fluoride resin, a carbon fiber and a specific granular graphite. The composition can provide a molded article having improved surface evenness and gloss by preventing the sink mark and warpage on the surface thereof.
    Type: Grant
    Filed: February 1, 1985
    Date of Patent: April 15, 1986
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Keizo Abe, Michiya Okamura, Takahiro Ozu, Hiroshi Yui, Masayoshi Tujii