Patents by Inventor Yasumasa Fukushima

Yasumasa Fukushima 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: 6716490
    Abstract: A method for making an enameled steel sheet includes the steps of spraying a slurry to form a slurry layer onto a surface of a substrate and firing the slurry layer. In this method, the slurry has a static surface tension of 50 dyne/cm or less and an apparent viscosity of 500 mPa·s that is measured with a model E viscometer at a rotation of 100 rpm. Alternatively, the method includes a step of spraying a slurry for forming an enamel layer onto a surface of a substrate, wherein the substrate is vibrated when the slurry is applied or when the slurry applied is still fluid.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: April 6, 2004
    Assignee: Kawasaki Steel Metal Products & Engineering Inc.
    Inventors: Kazuhiro Hayashi, Masao Taguchi, Yasumasa Fukushima, Masato Takagi, Shinichi Noma
  • Publication number: 20030194498
    Abstract: A method for making an enameled steel sheet includes the steps of spraying a slurry to form a slurry layer onto a surface of a substrate and firing the slurry layer. In this method, the slurry has a static surface tension of 50 dyne/cm or less and an apparent viscosity of 500 mPa·s that is measured with a model E viscometer at a rotation of 100 rpm. Alternatively, the method includes a step of spraying a slurry for forming an enamel layer onto a surface of a substrate, wherein the substrate is vibrated when the slurry is applied or when the slurry applied is still fluid.
    Type: Application
    Filed: January 21, 2003
    Publication date: October 16, 2003
    Applicant: Kawasaki Steel Metal Products & Engineering Inc.
    Inventors: Kazuhiro Hayashi, Masao Taguchi, Yasumasa Fukushima, Masato Takagi, Shinichi Noma
  • Patent number: 6334885
    Abstract: A method of solidifying a steel-making slag is performed by subjecting a mixture of a steel-making slag containing at least about 50% by weight of a powdery steel-making slag having a particle size not greater than about 5 mm and a substance containing at least about 30% by weight of SiO2 (e.g., a fly ash and/or the fine powder of a granulated blast furnace slag) to a hydration reaction. The resulting solidified material contains at least about 20% of a tobermorite phase, has high strength and is suitable as an inorganic material useful as a roadbed material, building and civil engineering materials, etc.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: January 1, 2002
    Assignee: Kawasaki Steel Corporation
    Inventors: Yasumasa Fukushima, Hisahiro Matsunaga, Hiroyuki Tobo, Makiko Nakagawa, Masato Takagi, Masato Kumagai
  • Patent number: 6322622
    Abstract: A flame spray mending material effective for applying a dense thermal spray mending layer to a silica brick wall of an industrial furnace, having a high crystallization ratio immediately after thermal spraying in a broad thermal spray condition, having an oxide concentration of 89% by weight or more of SiO2, more than 2.0 to 4.0% by weight of Na2O and/or more than 0.2 to 4.0% by weight of Li2O, having a 80% or more crystallization ratio after thermal spraying and 200 kgf/cm2 or more compression strength. A slight amount of CaO may be present to make a flame spray mending material with an oxide concentration of 89% by weight or more of SiO2, more than 2.0 to 5.0% by weight of CaO, 0.5 to 4.0% by weight of Na2O and/or more than 0.2 to 4.0% by weight of Li2O, and 1.0% by weight of less of Al2O3.
    Type: Grant
    Filed: November 26, 1999
    Date of Patent: November 27, 2001
    Assignee: Kawasaki Steel Corporation
    Inventors: Hisahiro Matsunaga, Masato Kumagai, Yasumasa Fukushima
  • Patent number: 6020421
    Abstract: A poly(ethylene terephthalate) polyester composition which is decreased in the amount of a cyclic trimer of ethylene terephthalate formed in melting, and a method for producing the same.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: February 1, 2000
    Assignee: Unitika Ltd.
    Inventors: Yasumasa Fukushima, Kiwamu Yuki, Tsunetoshi Matsuda
  • Patent number: 5993974
    Abstract: A porcelain enameled steel sheet comprises an aluminum/zinc alloy-plated steel sheet and a porcelain enamel coating layer as the upper most layer of the steel sheet, wherein an interstitial layer having good adhesion to the plating layer and the enamel coating layer is sandwiched between these two layers. The intermediate layer is preferably a member selected from the group consisting of: (1) the surface layer on the aluminum/zinc alloy-plating layer, whose aluminum content is not less than 96% by weight; (2) the surface layer on the aluminum-zinc alloy-plating layer, which comprises aluminum, nickel and not more than 1% by weight of zinc; (3) a coating layer comprising at least one member selected from the group consisting of Ni, Co, Mo, Mn, Ni--P, Ni--Co--P and Co--P; (4) a chromate layer; and (5) a coating layer comprising at least one member selected from the group consisting of zinc phosphate, manganese phosphate and aluminum phosphate.
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: November 30, 1999
    Assignees: Kawasaki Steel Corporation, Kawasaki Steel Metal Products & Engineering Inc.
    Inventors: Yasumasa Fukushima, Masato Kumagai, Kyoko Hamahara, Toshihide Suzuki, Koji Watanabe, Hiroshi Nagaishi, Fusao Togashi
  • Patent number: 5043385
    Abstract: An impact resistant resin composition comprising from 30 to 70% (wt) of a polyamide with at least 40 mol/10.sup.6 g amino groups, from 5 to 40% (wt) of a polyarylate, from 5 to 40% by weight of the adduct of an unsaturated dicarboxylic acid anhydride and a butadiene copolymer with at least one monomer from the group of aromatic vinylmonomer, an unsaturated nitrile monomer and an acrylate monomer, and from 3 to 30% (wt) of an epoxy group-containing olefine copolymer obtained by copolymerizing at least one unsaturated glycidyl monomer with at least one unsaturated olefin monomer.
    Type: Grant
    Filed: July 2, 1990
    Date of Patent: August 27, 1991
    Assignee: Stamicarbon B.V.
    Inventors: Kenji Yasue, Takeshi Marutani, Yasumasa Fukushima, Takashi Ida
  • Patent number: 4804707
    Abstract: A resin composition which comprises a resin blend comprising from 10 to 70% by weight of a polyarylate and from 30 to 90% by weight of a polyamide, and (A) an epoxy group-containing olefin copolymer obtained by copolymerizing at least one unsaturated glycidyl monomer with at least one olefin unsaturated monomer and (B) an acid anhydride-containing olefin copolymer obtained by copolymerizing a polyolefin or an olefin copolymer with an unsaturated dicarboxylic anhydride, incorporated in a total amount of form 3 to 30% by weight to said resin blend.
    Type: Grant
    Filed: April 24, 1987
    Date of Patent: February 14, 1989
    Assignee: Unitika Ltd.
    Inventors: Takashi Okamoto, Kenji Yasue, Takeshi Marutani, Yasumasa Fukushima