Inventor
UEMATSU RYOSUKE
JP30 patents
⚠️ This page may combine multiple inventors who share the name “UEMATSU RYOSUKE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NEC CORP
27 patentsUS4982692AJan 8, 1991
Apparatus for liquid development of electrostatic latent images
NEC CORP20 citations82
US5905510AMay 18, 1999
Toner content monitoring system for use in a recording head for ink-jet printer
NEC CORP11 citations74
US5877790AMar 2, 1999
Electrostatic ink jet recording apparatus ejecting ink using different electric potentials applied to different electrodes
NEC CORP8 citations74
US5874972AFeb 23, 1999
Electrostatic ink jet record head having a control electrode for equalizing the electric field of an ink chamber an ink jet recorder using same
NEC CORP10 citations74
US5801730ASep 1, 1998
Ink jet print head having a projecting ejection electrode
NEC CORP11 citations74
US4688048AAug 18, 1987
Drop-on-demand ink-jet printing apparatus
NEC CORP17 citations71
US6362859B1Mar 26, 2002
Electrostatic ink jet recording head having electrophoretic electrode and gravity ink reservoir
NEC CORP5 citations63
US6220696B1Apr 24, 2001
Simple electrostatic ink jet printing head having low cost
NEC CORP4 citations63
US6220695B1Apr 24, 2001
Ink-jet recording device for suppressing excess electrophoretic accumulation of charged particles
NEC CORP2 citations63
US6213591B1Apr 10, 2001
Injet recording apparatus
NEC CORP3 citations63
US6119342ASep 19, 2000
Method of producing a record head for an electrostatic ink jet recorder
NEC CORP2 citations63
US6089699AJul 18, 2000
Method and apparatus for controlling inkjet ejection electrodes by varying the electrodes potentials
NEC CORP3 citations63
US6074044AJun 13, 2000
Electrostatic ink jet recording head using control and recording electrodes for ejecting toner particles
NEC CORP3 citations63
US6059399AMay 9, 2000
Ink-jet recording apparatus with improved ink density formation
NEC CORP6 citations63
US5988795ANov 23, 1999
Electrostatic ink jet recording apparatus preventing precipitation of charged particulate material in ink liquid
NEC CORP4 citations63
US5975684ANov 2, 1999
Ink jet recording head having an ink stream path
NEC CORP5 citations63
US5926194AJul 20, 1999
Electrostatic ink jet recording device
NEC CORP6 citations63
US5754200AMay 19, 1998
Ink jet type head assembly
NEC CORP6 citations63
US5128721AJul 7, 1992
Liquid development apparatus for developing a latent electrostatic image
NEC CORP3 citations63
US5089853AFeb 18, 1992
Electrophotographic printing apparatus with repellent bands on the photoconductive member and the developing roller to prevent buildup of toner therebetween
NEC CORP6 citations63
US6290338B1Sep 18, 2001
Ink jet print head
NEC CORP3 citations62
US5880761AMar 9, 1999
Ink jet print head
NEC CORP3 citations62
US4942475AJul 17, 1990
Liquid development apparatus with perforated liquid carrier sheet
NEC CORP6 citations60
US6655789B2Dec 2, 2003
Ink jet print head
NEC CORP0 citations52
US6390607B2May 21, 2002
Ink jet print head
NEC CORP0 citations52
US6113219ASep 5, 2000
Electrostatic ink jet recording apparatus capable of realizing stable ejection of ink
NEC CORP0 citations42
US5963231AOct 5, 1999
Electrostatic ink jet recording head with grouped electrodes
NEC CORP0 citations42