Patents by Inventor Binyam A. Giorgis

Binyam A. Giorgis 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 providing a truncated profile probe for perpendicular recording
    Patent number: 7768742
    Abstract: The present invention is a truncated probe for a perpendicular recording write head. The truncated probe is formed in a resist using a pullback process. In the pullback process, a trench is formed in the resist. The resist is then heated to a required temperature for a predetermined duration of time. By controlling the temperature and time, the amount of pullback of the resist is controlled to form a specified angle for the truncated probe. Further, the present invention increases the efficiency of the write head by reducing the distance between the air-bearing surface (ABS) and a magnetic back gap of the perpendicular recording write head yokes. This reduction reduces the length of the write head and permits a faster rise time of a recorded signal.
    Type: Grant
    Filed: May 7, 2003
    Date of Patent: August 3, 2010
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Binyam A. Giorgis, Hugo A. E. Santini
  • Method and apparatus for providing a truncated profile probe for perpendicular recording
    Publication number: 20040223258
    Abstract: The present invention is a truncated probe for a perpendicular recording write head. The truncated probe is formed in a resist using a pullback process. In the pullback process, a trench is formed in the resist. The resist is then heated to a required temperature for a predetermined duration of time. By controlling the temperature and time, the amount of pullback of the resist is controlled to form a specified angle for the truncated probe. Further, the present invention increases the efficiency of the write head by reducing the distance between the air-bearing surface (ABS) and a magnetic back gap of the perpendicular recording write head yokes. This reduction reduces the length of the write head and permits a faster rise time of a recorded signal.
    Type: Application
    Filed: May 7, 2003
    Publication date: November 11, 2004
    Applicant: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Binyam A. Giorgis, Hugo A.E. Santini