Patents by Inventor Naohito Osuga

Naohito Osuga 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).

  • Extrusion-blow molded container having cylindrical body and metal mold for producing the same
    Patent number: 6039204
    Abstract: There is provided a cylindrical extrusion-blow molded container, or a cylindrical delaminatable blow-molded container in particular, having an inner layer made of a poorly fusion-bonded resin material such as nylon, in order to improve the fusion-bond of the bottom seal section of the container, to prevent the bottom from cracking.In a cylindrical extrusion-blow mold container, or a cylindrical delaminatable blow-molded container having an air inlet hole arranged at a neck of the container, a bottom seal section in a bottom wall of a bottom is formed with an elliptic thick and raised section arranged in and near the bottom seal section, said elliptic thick and raised section approximately showing an ellipsoid having an elliptic contour with its major axis running along a parting line.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: March 21, 2000
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventors: Hiroshi Hosokoshiyama, Masashi Yoneyama, Makoto Busujima, Hiroaki Tokuda, Naohito Osuga, Kouji Tashiro