US PATENT SUBCLASS 430 / 32
.~ Electrophoretic imaging, process, composition, or product

Current as of: June, 1999
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430 /   HD   RADIATION IMAGERY CHEMISTRY: PROCESS, COMPOSITION, OR PRODUCT THEREOF

31  DF  ELECTRIC OR MAGNETIC IMAGERY, E.G., XEROGRAPHY, ELECTROGRAPHY, MAGNETOGRAPHY, ETC., PROCESS, COMPOSITION, OR PRODUCT {18}
32.~ Electrophoretic imaging, process, composition, or product {6}
33  DF  .~.~> Post treatment process to fix or transfer image, or collect or remove electric radiation sensitive pigment
34  DF  .~.~> Pretreatment process to change the physical properties of electrophoretic suspension or specified imaging feature exposure
35  DF  .~.~> Specified electric field applied or electric charging step
36  DF  .~.~> Manipulation of electrode
37  DF  .~.~> Electric radiation sensitive pigment
38  DF  .~.~> Material used to modify electrophoretic suspension response

DEFINITION

Classification: 430/32

Electrophoretic imaging, process, composition, or product:

(under subclass 31) Processes, compositions, and products wherein particles suspended in an insulative liquid carrier between electrodes, migrate in an imagewise configuration in response to both an electrical potential difference between electrodes across the suspension, and imaging radiation. The pigments are usually colored and light absorbing. The pigments can be radiation-sensitive to the imaging radiation and are sometimes referred to as electrically photosensitive pigments. The migration of particles usually forms an image or an electrode.