The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 06, 2007
Filed:
Apr. 14, 2003
Peter M. Kazmaier, Mississauga, CA;
Barkev Keoshkerian, Thornhill, CA;
George Liebermann, Mississauga, CA;
Naveen Chopra, Oakville, CA;
Hadi K. Mahabadi, Toronto, CA;
Jaan Noolandi, Mississauga, CA;
Francisco E. Torres, San Jose, CA (US);
Peter M. Kazmaier, Mississauga, CA;
Barkev Keoshkerian, Thornhill, CA;
George Liebermann, Mississauga, CA;
Naveen Chopra, Oakville, CA;
Hadi K. Mahabadi, Toronto, CA;
Jaan Noolandi, Mississauga, CA;
Francisco E. Torres, San Jose, CA (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A method of making a multichromal sphere includes the steps of preparing a composition of at least (1) a matrix material and (2) at least two sets of particles, each of the sets of particles having a color different from at least one of another of the sets of particles and a segregation (e.g., an electrical or magnetic) property different from at least one of another of the sets of particles, encapsulating the composition within a shell to form an encapsulated sphere, immobilizing the encapsulated sphere in a manner to restrict at least rotation of the encapsulated sphere, subjecting the immobilized encapsulated sphere to an external field associated with the segregation property different among the sets of particles, under conditions in which the sets of particles are able to migrate within the matrix material, thereby producing color segregation in the immobilized encapsulated sphere, and solidifying the matrix material while substantially maintaining the color segregation. In the multichromal spheres, each of the sets of particles is segregated within a separate segment of the solidified matrix material of the core on the basis of the different segregation property.