Patents by Inventor Kozo Oike

Kozo Oike 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).

  • Composite material for balloon and balloon made thereof
    Patent number: 5279873
    Abstract: A composite material for a balloon having a transparency and a gas barrier, including a polymer base layer and a transparent thin layer of a silicon oxide provided on one surface of the polymer base layer, the silicon oxide layer having an atomic ratio of silicon to oxygen of 1:0.3 to 2. The composite material has a high degree of barrier to helium gas or hydrogen gas. A balloon produced from the composite material retains its buoyancy for a long period of time.
    Type: Grant
    Filed: October 31, 1991
    Date of Patent: January 18, 1994
    Assignee: Oike Industrial Co., Ltd.
    Inventor: Kozo Oike