Invention Grant
- Patent Title: Marking material with birefringent nanoparticles
- Patent Title (中): 用双折射纳米粒子标记材料
-
Application No.: US11554133Application Date: 2006-10-30
-
Publication No.: US07897307B2Publication Date: 2011-03-01
- Inventor: Gabriel Iftime , Peter M. Kazmaier , C. Geoffrey Allen , Paul F. Smith
- Applicant: Gabriel Iftime , Peter M. Kazmaier , C. Geoffrey Allen , Paul F. Smith
- Applicant Address: US CT Norwalk
- Assignee: Xerox Corporation
- Current Assignee: Xerox Corporation
- Current Assignee Address: US CT Norwalk
- Agency: Oliff & Berridge, PLC
- Main IPC: G03G9/09
- IPC: G03G9/09
Abstract:
Disclosed is a birefringent marking material comprising a vehicle for the marking material and birefringent nanoparticles having an average particle size of less than about 700 nm. The birefringent marking material, such as an ink or a toner, can be used to provide a security marking on or in an item, thereby enabling authentication of the item containing the image formed using the birefringent marking material.
Public/Granted literature
- US20080145777A1 MARKING MATERIAL WITH BIREFRINGENT NANOPARTICLES Public/Granted day:2008-06-19
Information query
