Patents by Inventor Masaichi Sugimoto

Masaichi Sugimoto 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).

  • Hydrophobic material used for drainage of culvert
    Patent number: 5002427
    Abstract: A hydrophobic material used in the construction of a culver for improving the drainage of the culvert. The hydrophobic material comprises a textile or knit fabric, preferably biodegradable, having large and small mesh portions. A soil-aggregating agent is adhered to the small mesh portions of the textile or knit fabric. The hydrophobic material can be coated with a water soluble film to prevent the soil-aggregating agent from being removed during construction or handling.The hydrophobic material used for the drainage of a culvert is capable of keeping the water-penetrating property of the culvert for a long time.
    Type: Grant
    Filed: August 9, 1989
    Date of Patent: March 26, 1991
    Assignee: Nisshoku Corporation
    Inventors: Hiroyuki Kambe, Masashi Shibata, Masaichi Sugimoto