Patents by Inventor Kathuhide Oshima

Kathuhide Oshima 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 forming a ceramic coating by laser beam irradiation
    Patent number: 5057335
    Abstract: A method for forming a ceramic coating on a substrate comprises immersing the substrate such as stainless steel in an aqueous solution containing a silicic acid compound such as sodium silicate and/or a metal salt of oxygen acid such as an aluminate, and irradiating the substrate with a laser beam. By this method, a dense and fine ceramic coating can be uniformly formed on the substrate without using an apparatus of large scale required in the gas phase method and without heating the system to a high temperature.
    Type: Grant
    Filed: October 2, 1989
    Date of Patent: October 15, 1991
    Assignee: Dipsol Chemical Co., Ltd.
    Inventors: Haruo Hanagata, Kathuhide Oshima, Hidesato Igarashi, Noboru Morita
  • Method for brightening the electrodeposits of zinc from alkaline zinc electroplating baths
    Patent number: 4113583
    Abstract: A method for depositing bright zinc from zinc electrodeposition baths in which a compound prepared by reacting imidazole and/or at least one imidazole derivative with at least one organic compound which quaternizes nitrogen in said imidazole in the presence of water is added to the alkaline zinc electroplating baths.
    Type: Grant
    Filed: March 21, 1977
    Date of Patent: September 12, 1978
    Assignee: Dipsol Chemical Company, Ltd.
    Inventors: Kathuhide Oshima, Haruyuki Takasaki, Akio Takahashi