Patents by Inventor Roland F. Drew

Roland F. Drew 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).

  • Laser deposition of metal upon transparent materials
    Patent number: T988007
    Abstract: The present invention contemplates a method and apparatus for selectively depositing metal or other materials upon a transparent substrate utilizing a laser source. More particularly, the invention contemplates depositing material in highly selective areas with a high degree of adhesion and uniformity.The invention attains these results with an arrangement wherein a laser source 12 is located on one side of a transparent or translucent substrate 18 upon which metal is to be deposited, so that the laser beam can be directed through the substrate. A reservoir 20 of metal is located on supports 24 on the opposite side of the substrate adjacent to the surface thereof. Deflection means 14, 16 are provided to selectively scan the laser beam at predetermined intensity levels over a desired pattern.The scanned laser beam acts to heat and vaporize metal from the metal reservoir, which is then redeposited upon the adjacent surface of the glass substrate.
    Type: Grant
    Filed: February 5, 1979
    Date of Patent: November 6, 1979
    Assignee: International Business Machines Corporation
    Inventors: Roland F. Drew, Frank J. Schmidt, Jr., Thomas J. Vanduynhoven