Patents by Inventor John Kolb, Jr.

John Kolb, Jr. 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).

  • Magnetic head employing easy axis thin film inductor
    Patent number: 4120011
    Abstract: A flux-sensitive magnetic head employs, at its back part, a structure having a thin single domain magnetic film coated thereon. A first coil wraps around the coated structure; and a second coil wraps around one pole of the head. A direct current is passed through the second coil, thereby to apply an easy axis magnetic bias to the film. By appropriately contouring the back gap of the head, signal flux appearing at the head front gap asserts a differential magnetic force to the easy axis of the film, thereby causing the inductance of the first coil to vary detectably.
    Type: Grant
    Filed: September 21, 1977
    Date of Patent: October 10, 1978
    Assignee: Eastman Kodak Company
    Inventor: Frederick John Kolb, Jr.
  • Lamp
    Patent number: D772469
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: November 22, 2016
    Inventor: John Kolb, Jr.