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Hany Aziz, Zoran D Popovic, Nan Xing Hu, Ah Mee Hor: Organic light emitting device (OLED) with thick (100 to 250 nanometers) porphyrin buffer layer. Xerox Corporation, Eugene O Palazzo Esq, Fay Sharpe Fagan Minnich & McKee, November 2, 2004: US06811896 (25 worldwide citation)

An organic light emitting device (OLED) has a thick (100 to 250 nanometers) porphyrin buffer layer between the anode and the luminescent region. The thick porphyrin buffer layer in the OLED results in a small increase in device operating voltage, reduces the possibility of OLED shorting and can impr ...


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Allan K Chen, Chieh Min Cheng, Tie Hwee Ng, George Liebermann: Nonionic surfactant-free emulsion polymerization process. Xerox Corporation, Eugene O Palazzo Esq, Oliff & Berridge, September 25, 2001: US06294606 (8 worldwide citation)

A latex used for the preparation of toner particles by emulsion aggregation is prepared, using a controlled addition of anionic surfactants, without the use of a nonionic surfactant. Such a process comprises preparing an aqueous phase using a limited amount of anionic surfactant; preparing an emulsi ...


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Antonio L Williams, Clifford L George: Alignment mechanism for direct marking printheads and a method for aligning printheads in a printer. Xerox Corporation, Oliff & Berridge, Eugene O Palazzo Esq, August 30, 2005: US06937260 (7 worldwide citation)

A device and method for the alignment, in up to six degrees of freedom, of printheads in a printer is disclosed. The device has a support, wherein the printhead is secured to a substantially center location of the support. The device further has a fixed plate biased against the support by plurality ...


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Robert C U Yu: Process for producing an imaging member belt having a butt-lap seam. Xerox Corporation, Eugene O Palazzo Esq, Fay Sharpe Fagan Minnich & McKee, July 19, 2005: US06918978 (1 worldwide citation)

There is provided a process for producing a seamed, flexible electrostatographic imaging member belt comprising providing a flexible, substantially rectangular, electrostatographic imaging sheet having a first major exterior surface opposite and parallel to a second major exterior surface and a firs ...