Patents by Inventor Keisuke Nakagaki

Keisuke Nakagaki 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).

  • Method and apparatus for temporarily covering openings of containers
    Patent number: 4994129
    Abstract: A method and apparatus to temporarily cover an opening of a container to prevent the entry of foreign matters during a process in which a large number of containers are handled. A temporary cover has a sticky surface on one side that is large enough to cover the opening of the container. The temporary cover is positioned near the opening of the container, with the sticky surface directed to face the opening. Then, the temporary cover is lightly pressed against the end of the opening so that the cover adheres in position. After a given operation has been completed, the temporary cover is removed from the opening of the container.
    Type: Grant
    Filed: April 12, 1989
    Date of Patent: February 19, 1991
    Assignee: Nittetsu Steel Drum Co., Ltd.
    Inventor: Keisuke Nakagaki