John Roy

John Roy Hilgeman, Jr., Guttenberg, NJ US

Patent application number	Description	Published
20100259754	METHOD OF OPTIMISING THE SENSITIVITY OF A SURFACE PLASMON ELLIPSOMETRY APPARATUS - A method of optimising the sensitivity of surface plasmon ellipsometry (SPE) apparatus used to analyse a surface comprising a conducting film, the method comprising calculating a sensitivity map of SPE for the film, the sensitivity map comprising data defining variations in sensitivity of said SPE apparatus with angle of incidence and polarisation angle of polarised light incident on said film for analysis by said SPE apparatus, and using said sensitivity map to configure said SPE apparatus with a combination of said angle of incidence and polarisation angle located in a region of substantially maximum sensitivity in said sensitivity map.	10-14-2010

Patent application number	Description	Published
20110243597	DUAL FUNCTION CHARGING DEVICE AND CHARGE PATTERNING DEVICE CLEANER - A printing apparatus includes a charging device and a photoreceptor adjacent the charging device. The charging device transfers a charge to the photoreceptor. Also, a charge patterning device is adjacent the photoreceptor. The patterning device patterns the charge on the photoreceptor to form a latent image charge. Additionally, an automated cleaning device is adjacent the charging device. The charge patterning device periodically moves by the charging device and the charge patterning device to simultaneously clean the charging device and the charge patterning device.	10-06-2011