Patents by Inventor Motoo Shiraishi

Motoo Shiraishi 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).

  • Precoated corrosion-resistant steel pipe piles for marine use, and structure thereof
    Patent number: 4743142
    Abstract: Precoated corrosion-resistant steel pipe piles, and structures thereof, for driving into the sea bed wherein the waterproofness, corrosion resistance, and scratch resistance of the steel pipe piles are considerably improved by applying a polyethylene resin over the length thereof.
    Type: Grant
    Filed: June 10, 1986
    Date of Patent: May 10, 1988
    Assignee: Nippon Steel Corporation
    Inventors: Motoo Shiraishi, Mansei Tanaka, Minoru Nakamura, Koichi Sato
  • Marine structure of precoated corrosion resistant steel pipe piles
    Patent number: 4659255
    Abstract: A marine structure comprising steel pipe piles in which the top head, splash zone and tidal zone of each steel pipe pile driven into the sea bed are covered with a polyethylene resinous covering material, and the top head of the steel pipe pile is inserted inside a slab concrete structure, whereby is realized a considerably improvement in the water imperviousness, corrosion resistance, and scratch resistance of the steel pipe piles.
    Type: Grant
    Filed: December 6, 1985
    Date of Patent: April 21, 1987
    Assignee: Nippon Steel Corporation
    Inventors: Motoo Shiraishi, Mansei Tanaka, Minoru Nakamura, Koichi Sato