Patents by Inventor Sohei Nakamura

Sohei Nakamura 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).

  • Agricultural paper and process for producing the same
    Patent number: 4963230
    Abstract: Disclosed herein is agricultural paper to be made into pots for raising seedlings. It is made up of a first layer made chiefly of natural pulp and a second layer made of synthetic fibers having a basis weight of 3-15 g/m.sup.2, said first layer and second layer being joined to each other by the wet papermaking process which intertwines the fibers of the two layers at their joining interface. The second layer is formed by fusion bonding composite synthetic fibers of polymers having different plasticizing temperatures.
    Type: Grant
    Filed: July 5, 1989
    Date of Patent: October 16, 1990
    Assignees: Oji Paper Company Ltd., Kuraray Co., Ltd., Nihon Tensaiseito Kabushiki Kaisha
    Inventors: Mitsuru Kawase, Masashi Tanimura, Hidekazu Terasawa, Sohei Nakamura, Takayuki Nagano, Shosuke Higashimori, Hiroshi Matsuki, Hisashi Matsumoto