Inventor · Hillsboro, OR, US

Guru B. Raj

28Patents
11h-index
27Co-inventors
75Inventor score

Filing activity: Aug 24, 1992 → Nov 10, 2016

Most-cited inventions

PatentTitleAreaCited byStatus
US5436705A Adaptive process controller for electrophotographic printing Physics 75 Expired
US5369472A Microprocessor controlled high voltage power supply Emerging Cross-Sectional Technologies 40 Expired
US6940613B1 System for managing replaceable modules in a digital printing apparatus Physics 32 Expired
US5710958A Method for setting up an electrophotographic printing machine using a toner area coverage sensor Physics 29 Expired
US5918085A Method and apparatus for waste toner determination Physics 25 Expired
US5237521A High resolution position measurement system Physics 21 Expired
US5946521A Xerographic xerciser including a hierarchy system for determining part replacement and failure Physics 20 Expired
US5903796A P/R process control patch uniformity analyzer Physics 20 Expired
US6016204A Actuator performance indicator Physics 20 Expired
US6438329B1 Method and apparatus for automatic customer replaceable unit (CRU) setup and cleaner blade lubrication Physics 18 Expired
US5895141A Sensorless TC control Physics 15 Expired
US7649638B2 System for managing replaceable modules in a digital printing apparatus Physics 11 Active
US5797064A Pseudo photo induced discharged curve generator for xerographic setup Electricity 11 Expired
US6198885A Non-uniform development indicator Physics 11 Expired
US5749023A Adaptive feed forward compensation for time varying toner cohesivity Physics 10 Expired
US5826139A Method and apparatus for controlling the sequence, size and position of an image control patch Emerging Cross-Sectional Technologies 9 Expired
US7773239B2 System for managing replaceable modules in a digital printing apparatus Physics 8 Active
US5960228A Dirt level early warning system Physics 8 Expired
US5995775A ROS pixel size growth detector Physics 8 Expired
US5864730A Photoreceptor seam signature Physics 6 Expired
US6081348A Ros beam failure detector Physics 6 Expired
US5937224A Cleaner stress indicator Physics 5 Expired
US5893008A Photoreceptor parking deletion detector Physics 5 Expired
US5822662A Background detection and compensation Physics 3 Expired
US5956542A Tribo decay rest recovery and developer material break in procedure Physics 1 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.