Patents by Inventor Michiaki Nagata

Michiaki Nagata 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).

  • Corrugated board-like sheet made of synthetic resin
    Patent number: 4507348
    Abstract: This invention relates to a corrugated board-like sheet made of a synthetic resin. More particularly, it relates to a corrugated board-like sheet made of a synthetic resin having a flap portion with hinge effect.
    Type: Grant
    Filed: April 5, 1983
    Date of Patent: March 26, 1985
    Assignee: Mitsui Petrochemical Industries
    Inventors: Michiaki Nagata, Koji Nakashima