Patents by Inventor Clarence Jacob Spector

Clarence Jacob Spector 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).

  • Microscopic bar code for component identification and method for making same
    Patent number: 5907144
    Abstract: The invention is a method and apparatus for imprinting a microscopic code on a small surface, such as the edge of a magnetic disk, or the head used to read or write information to the disk and a magnetic disk imprinted with such microscopic identification codes. The invention provides a way to identify products using microscopic codes, such as bar codes, by using a laser to imprint such microscopic bar codes on a product. The identification meets the stringent cleanliness requirements of the computer industry without generating debris, and so is exceptionally suited for use in identifying hard disks and heads used in a disk drive.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: May 25, 1999
    Assignee: International Business Machines Corporation
    Inventors: Chie Ching Poon, Clarence Jacob Spector, Andrew Ching Tam