Patents by Inventor Rifat A. M. Hikmet

Rifat A. M. Hikmet 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).

  • Liquid crystalline material and display cell containing said material
    Patent number: 5188760
    Abstract: A liquid crystalline material in the form of an anisotropic gel comprising a polymerized liquid crystalline material and a low-molecular weight liquid crystalline material, can be used in a display cell, said polymerized material forming a permanently oriented network in the low-molecular weight liquid crystalline material.
    Type: Grant
    Filed: April 3, 1991
    Date of Patent: February 23, 1993
    Assignee: U. S. Philips Corporation
    Inventors: Rifat A. M. Hikmet, Dirk J. Broer
  • Bonding using a difunctional liquid crystalline monomer adhesive under an applied force field
    Patent number: 5178710
    Abstract: By using an adhesive layer (9) between a mount (3) and an optical component (5), which adhesive layer comprises liquid crystalline monomers, the polymerization shrinkage can be minimized in the desired directions X and Y if the monomers are oriented in the Z-direction by an external field before they are polymerized.
    Type: Grant
    Filed: March 25, 1992
    Date of Patent: January 12, 1993
    Assignee: U.S. Philips Corporation
    Inventors: Rifat A. M. Hikmet, Dirk J. Broer, Robert G. Gossink
  • Method of providing a liquid crystalline auxiliary layer in a display cell
    Patent number: 5155610
    Abstract: The invention relates to a method of providing a surface layer on a substrate, which surface layer can bring about an inclined orientation of the molecules of the liquid crystalline layer applied to the surface layer at the interface between the surface layer and the liquid crystalline layer. The surface layer is manufactured from a liquid crystalline auxiliary layer in which the orientation of at least a part of the molecules is permanently fixed.
    Type: Grant
    Filed: June 20, 1991
    Date of Patent: October 13, 1992
    Assignee: U.S. Philips Corporation
    Inventors: Rifat A. M. Hikmet, Dirk J. Broer