Inventor
BERGEN RICHARD F
US47 patents
⚠️ This page may combine multiple inventors who share the name “BERGEN RICHARD F”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
XEROX CORP
41 patentsUS4463363AJul 31, 1984
Fluid assisted ion projection printing
XEROX CORP67 citations96
US5257045AOct 26, 1993
Ionographic printing with a focused ion stream
XEROX CORP55 citations95
US4963738AOct 16, 1990
Flat comb-like scorotron charging device
XEROX CORP24 citations93
US5617129AApr 1, 1997
Ionographic printing with a focused ion stream controllable in two dimensions
XEROX CORP42 citations91
US5450115ASep 12, 1995
Apparatus for ionographic printing with a focused ion stream
XEROX CORP39 citations88
US4841146AJun 20, 1989
Self-cleaning scorotron with focused ion beam
XEROX CORP20 citations82
US4591713AMay 27, 1986
Efficient, self-limiting corona device for positive or negative charging
XEROX CORP23 citations82
US4282303AAug 4, 1981
Development method and apparatus
XEROX CORP24 citations82
US6127775AOct 3, 2000
Ionic display with grid focusing
XEROX CORP15 citations74
US5706162AJan 6, 1998
Corona generating device
XEROX CORP7 citations74
US5655186AAug 5, 1997
Light blocking ion charging apparatus
XEROX CORP9 citations74
US5587584ADec 24, 1996
Apparatus for charging a film on the internal surface of a drum
XEROX CORP7 citations74
US5043579AAug 27, 1991
Uniform charging device
XEROX CORP8 citations74
US5028779AJul 2, 1991
Corona charging device
XEROX CORP8 citations74
US4762997AAug 9, 1988
Fluid jet assisted ion projection charging method
XEROX CORP8 citations74
US4763141AAug 9, 1988
Printing apparatus with improved ion focus
XEROX CORP16 citations74
US4197331AApr 8, 1980
Novel electrostatic imaging system
XEROX CORP8 citations74
US4065308ADec 27, 1977
Deformation imaging element
XEROX CORP12 citations74
US4233388ANov 11, 1980
Method for making toner particles
XEROX CORP12 citations73
US3980396ASep 14, 1976
Liquid crystalline deflection and modulation system
XEROX CORP10 citations73
US4777904AOct 18, 1988
Touchdown development apparatus
XEROX CORP15 citations70
US5729810AMar 17, 1998
Overcoated transfer roller for transferring developed images from one surface to another
XEROX CORP7 citations66
US5841457ANov 24, 1998
Ion stream splitting and pre-focusing
XEROX CORP2 citations63
US5666601ASep 9, 1997
Resistive ion source charging device
XEROX CORP2 citations63
US5659176AAug 19, 1997
Scanning corotron
XEROX CORP2 citations63
US5655184AAug 5, 1997
Ionographic printing with improved ion source
XEROX CORP3 citations63
US5572296ANov 5, 1996
Color printing system employing non-interactive development
XEROX CORP2 citations63
US5563688AOct 8, 1996
Charging device for charging in one of a plurality of predefined image areas on a surface of an imaging member
XEROX CORP4 citations63
US5105223AApr 14, 1992
Screened blade scorotron
XEROX CORP3 citations63
US5083145AJan 21, 1992
Non-arcing blade printer
XEROX CORP5 citations63
US4558221ADec 10, 1985
Self limiting mini-corotron
XEROX CORP5 citations63
US4302094ANov 24, 1981
Development method and apparatus
XEROX CORP6 citations63
US3997243ADec 14, 1976
Color image reproduction system
XEROX CORP3 citations63
US3951533AApr 20, 1976
Color image reproduction system
XEROX CORP3 citations63
US3944358AMar 16, 1976
Color image reproduction system
XEROX CORP6 citations63
US4018603AApr 19, 1977
Deformation imaging system using thermoplastic and elastomeric layers
XEROX CORP3 citations62
US5742051AApr 21, 1998
Micro sized ion generating device
XEROX CORP0 citations52
US5723863AMar 3, 1998
Ion charging apparatus with light blocking capability
XEROX CORP0 citations52
US5075703ADec 24, 1991
Ribbon coronode
XEROX CORP0 citations52
US4724509AFeb 9, 1988
Efficiently mounted long coronodes
XEROX CORP1 citations52
US3961950AJun 8, 1976
Imaging system
XEROX CORP1 citations52
(unassigned)
6 patentsUS6906864B2Jun 14, 2005
Light altering device
5 citations74
US6842291B2Jan 11, 2005
Light altering device
7 citations74
US6833962B2Dec 21, 2004
Light altering device
8 citations74
US6906865B2Jun 14, 2005
Light altering device
0 citations52
US6898016B2May 24, 2005
Light altering device
0 citations52
US6898017B2May 24, 2005
Light altering device
0 citations52