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US 7,247,379 B2Granted
Electrophoretic particles, and processes for the production thereof
AssigneeE Ink Corporation
InventorsAnthony Edward Pullen, Thomas H. Whitesides, Charles H. Honeyman, Barrett Comiskey, Jonathan D. Albert
Life of this patent
Estimating the term…
Abstract
Copper chromite particles can advantageously be used as black particles in electrophoretic media and displays. Preferably, the copper chromite particles are coated with a silica coating and a polymer coating.
Claims16
A copper chromite particle having a silica coating having a diameter in the range of about 0.25 to about 5 μm including the silica coating.
A copper chromite particle having polymer chemically bonded to the particle.
Dependencies are inferred from the claim text.