Patents by Inventor Hendrik A. J. Neerhof

Hendrik A. J. Neerhof 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 of manufacturing a thin-film magnetic head
    Patent number: 5911455
    Abstract: Method of manufacturing a magnetic head, in which a multilayer structure comprising a transducing system (11A) with electrically conducting connecting tracks (17a, 17b) and further comprising a head face sensor system (15a, 15b) with electrically conducting connecting tracks (17a, 17b; 19a, 19b) is formed on a substrate. A processing operation is performed for forming a head face (23), which operation is terminated on the basis of measurements performed on the head face sensor system.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: June 15, 1999
    Assignee: U.S. Philips Corporation
    Inventors: Eeltje A. Draaisma, Hendrik A. J. Neerhof