Patents by Inventor Hideo Shimizu

Hideo Shimizu 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).

  • Phosphating process of metal surface
    Patent number: 4419147
    Abstract: A process for phosphating a metal surface to be electrocoated, which comprises treating the metal surface with an acidic phosphating solution comprising a zinc compound in a concentration of 0.5 to 1.5 g/l as zinc ion, a phosphate in a concentration of 5 to 30 g/l as phosphate ion and a nitrite in a concentration of 0.01 to 0.2 g/l as nitrite ion and/or an aromatic nitro compound in a concentration of 0.05 to 2 g/l in water at a temperature of 40 to 70.degree. C. first by dipping for not less than 15 seconds and then by spraying for not less than 2 seconds.
    Type: Grant
    Filed: April 6, 1981
    Date of Patent: December 6, 1983
    Assignee: Amchem Products, Inc.
    Inventors: Ryoichi Murakami, Hideo Shimizu, Takashi Yoshii, Minoru Ishida, Hiroto Yonekura
  • Phosphating process of metal surface
    Patent number: 4292096
    Abstract: A process for phosphating a metal surface to be electrocoated, which comprises treating the metal surface with an acidic phosphating solution comprising a zinc compound in a concentration of 0.5 to 1.5 g/l as zinc ion, a phosphate in a concentration of 5 to 30 g/l as phosphate ion and a nitrite in a concentration of 0.01 to 0.2 g/l as nitrite ion and/or an aromatic nitro compound in a concentration of 0.05 to 2 g/l in water at a temperature of 40 to 70.degree. C. first by dipping for not less than 15 seconds and then by spraying for not less than 2 seconds.
    Type: Grant
    Filed: February 13, 1980
    Date of Patent: September 29, 1981
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Ryoichi Murakami, Hideo Shimizu, Takashi Yoshii, Minoru Ishida, Hiroto Yonekura
  • Dip phosphating process
    Patent number: 4287004
    Abstract: A dip phosphating process, which comprises introducing a substrate to be phosphated into a phosphating bath while undulating the phosphating solution at the entrance section of the bath.
    Type: Grant
    Filed: December 5, 1979
    Date of Patent: September 1, 1981
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Ryoichi Murakami, Hideo Shimizu, Syuzi Sato
  • Method for preparing finely divided ethylene polymer particles
    Patent number: 3943115
    Abstract: Finely divided ethylene polymer particles having a smooth surface and regular spherical configuration are prepared by a method in which an ethylene polymer, an organic solvent for the polymer and water are charged into a vessel, the charge is stirred to mix the organic solvent, water and ethylene polymer, the charge is heated to a temperature at which the ethylene polymer is completely dissolved in the organic solvent, so as to form an organic solvent solution of the ethylene polymer mixed with water, the charge is cooled and, then, the mixture of organic solvent and water is evaporated away from the charge so as to allow the ethylene polymer to deposit in the form of finely divided particles from the charge.
    Type: Grant
    Filed: March 18, 1975
    Date of Patent: March 9, 1976
    Assignee: Ube Industries, Ltd.
    Inventors: Minoru Kawaguchi, Yasuki Yamasaki, Hideo Shimizu, Shinichi Taoka, Yoshio Hayamizu