Patents by Inventor Toshimoto Tsuji

Toshimoto Tsuji 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).

  • Underwater curable coating composition
    Patent number: 6037435
    Abstract: The present application to an underwater curable coating composition which is used for protecting or imparting an aesthetic appearance to various structures. An underwater curable coating composition consisting essentially of an epoxy resin component and its curing agent, wherein the epoxy resin component is a mixture comprising a liquid hydrophobic epoxy resin and a self-emulsifiable liquid epoxy resin. The curing agent is composed partly or solely of a ketimine.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: March 14, 2000
    Assignee: Dai Nippon Toryo Co., Ltd.
    Inventors: Toshiharu Hayashi, Toshimoto Tsuji
  • Method for preventing corrosion of a reinforced concrete structure
    Patent number: 5341562
    Abstract: A method for preventing corrosion of a reinforced concrete structure having a reinforcing steel embedded therein, which comprises coating an aggregate-containing primer on the surface of the reinforced concrete structure, to form a primer layer having a rough surface, metal-spraying a metal having an ionization tendency larger than iron on the primer layer to form a metal spray coating layer, and connecting the metal spray coating layer and the reinforcing steel by an electrically conductive material.
    Type: Grant
    Filed: April 26, 1993
    Date of Patent: August 30, 1994
    Assignee: Dai Nippon Toryo Co., Ltd.
    Inventors: Akio Furuya, Toshimoto Tsuji, Takayuki Sato
  • Anticorrosion primer coating composition
    Patent number: 4111884
    Abstract: The present invention relates to an anticorrosion primer coating composition comprising (i) a polyvinyl butyral resin, (ii) a mixture of a borate compound and a molybdate compound or a polyphosphate compound, and (iii) phosphoric acid.
    Type: Grant
    Filed: April 6, 1977
    Date of Patent: September 5, 1978
    Assignee: Dai Nippon Toryo Co., Ltd.
    Inventors: Katsuji Takase, Toshimoto Tsuji, Jun-ichi Fukuda, Yasuchika Hiyamori
  • Anticorrosion primer coating composition
    Patent number: 4098749
    Abstract: The present invention relates to an anticorrosion primer coating composition comprising (i) a polyvinyl butyral resin, (ii) an organo functional silane, (iii) at least one member selected from the group consisting of inorganic borate compounds and polyphosphate compounds, and (iv) phosphoric acid.
    Type: Grant
    Filed: March 24, 1977
    Date of Patent: July 4, 1978
    Assignee: Dai Nippon Toryo Co., Ltd.
    Inventors: Minoru Hoshino, Toshio Shinohara, Yukio Kawahara, Katsuji Takase, Toshimoto Tsuji, Jun-ichi Fukuda