Patents by Inventor Kenichi Ishikawa

Kenichi Ishikawa 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 for press-bonding laminated assembly
    Patent number: 4944822
    Abstract: A method for press-bonding a laminated assembly of a sheet material and a plastic film, which comprises providing on at least the peripheral portion of the sheet material and/or the plastic film a primer layer capable of adhering the sheet material and the plastic film at room temperature, stacking the sheet material and the plastic film to form a laminated assembly, evacuating a first vacuum compartment defined by the sheet material and the plastic film to a vacuumed condition and at the same time, evacuating a second vacuum compartment enclosing at least the plastic film side of the first compartment, to a vacuumed condition, and then introducing atmospheric air into the second vacuum compartment to release it from the vacuumed condition and thereby to press-bond the plastic film to the sheet material.
    Type: Grant
    Filed: August 25, 1988
    Date of Patent: July 31, 1990
    Assignee: Asahi Glass Company Ltd.
    Inventors: Kenichi Ishikawa, Koji Kurita, Satoru Fukawa, Kenji Maeda