Appeal No. 1997-0646
Application 08/383,667
rejection. These are all of the claims remaining in the
application.
THE INVENTION
Appellants’ claimed invention is directed toward a
dielectric dispersion which contains two types of particles
having different colors and opposite charges and which is
useful in electrophoretic image displays and electrostatic
printing
(specification, page 1, lines 2-6). Claim 1 is illustrative
and reads as follows:
1. A dielectric dispersion, comprising:
(a) a dielectric fluid;
(b) a first plurality of particles of a first color
having a surface charge of a selected polarity dispersed
within said dielectric fluid; and
(c) a second plurality of particles of a second color
which contrasts substantially with said first color, having a
surface charge of opposite polarity to that of said first
plurality of particles; and
(d) means for preventing coagulation of said first and
second plurality of particles, wherein said means includes a
charge control agent for positively charging said first
plurality of particles, a second charge control agent for
negatively charging said second plurality of particles, and a
2
Page: Previous 1 2 3 4 5 6 7 8 Next
Last modified: November 3, 2007