Patents by Inventor Takenobu Okumura

Takenobu Okumura 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).

  • Sand drift prevention method, method of forming and improving vegetation in sandy soil using the same, and tubular knit fabric for columnar sandbag
    Patent number: 8113739
    Abstract: A sand drift prevention method in which a plurality of columnar sandbags made of a tubular knit fabric are placed so as to cross over one another, and in such a pitch that 3 to 30 sandbags are disposed for every ten meters, and in which the cross-sectional area of each of the columnar sandbags is 10 to 400 cm2. A method of forming and improving the vegetation in sandy soil in which drift of sand is prevented by the sand drift prevention method, a plant desired to grow is grown in the sandy soil surface exposed as being surrounded by columnar sandbags placed so as to cross over one another. A tubular knit fabric for a columnar sandbag employed in these methods, and, in particular, the tubular knit fabric knitted by use of a polylactic-acid fiber.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: February 14, 2012
    Assignees: Toray Industries, Inc., Mitsukawa & Co., Ltd.
    Inventors: Osamu Mito, Kazuya Matsumura, Koji Sasaki, Takenobu Okumura, Shigeto Matsumoto, Makoto Maeda
  • Sand drift prevention method, method of forming and improving vegetation in sandy soil using the same, and tubular knit fabric for columnar sandbag
    Publication number: 20080279630
    Abstract: A sand drift prevention method in which a plurality of columnar sandbags made of a tubular knit fabric are placed so as to cross over one another, and in such a pitch that 3 to 30 sandbags are disposed for every ten meters, and in which the cross-sectional area of each of the columnar sandbags is 10 to 400 cm2. A method of forming and improving the vegetation in sandy soil in which drift of sand is prevented by the sand drift prevention method, a plant desired to grow is grown in the sandy soil surface exposed as being surrounded by columnar sandbags placed so as to cross over one another. A tubular knit fabric for a columnar sandbag employed in these methods, and, in particular, the tubular knit fabric knitted by use of a polylactic-acid fiber.
    Type: Application
    Filed: April 25, 2008
    Publication date: November 13, 2008
    Inventors: Osamu Mito, Kazuya Matsumura, Koji Sasaki, Takenobu Okumura, Shigeto Matsumoto, Makoto Maeda