Inventor
HORIKE MASANORI
72 patents
Patents
50 patentsUS6947195B2Sep 20, 2005
Optical modulator, optical modulator manufacturing method, light information processing apparatus including optical modulator, image formation apparatus including optical modulator, and image projection and display apparatus including optical modulator
RICOH KK62 citations96
US6901231B1May 31, 2005
Developing apparatus, developing method, image forming apparatus, image forming method and cartridge thereof
RICOH KK48 citations96
US6708014B2Mar 16, 2004
Electrostatic transportation device, development device and image formation apparatus
RICOH KK66 citations96
US4293865AOct 6, 1981
Ink-jet recording apparatus
RICOH KK102 citations96
US4228440AOct 14, 1980
Ink jet printing apparatus
RICOH KK59 citations96
US4178595ADec 11, 1979
Ink jet printing apparatus with ink replenishing
RICOH KK75 citations96
US4535339AAug 13, 1985
Deflection control type ink jet recorder
RICOH KK34 citations93
US4400705AAug 23, 1983
Ink jet printing apparatus
RICOH KK30 citations93
US4281332AJul 28, 1981
Deflection compensated ink ejection printing apparatus
RICOH KK36 citations93
US4231047AOct 28, 1980
Ink-jet printing method and device therefor
RICOH KK36 citations93
US7308222B2Dec 11, 2007
Toner supplying system for an image forming apparatus
RICOH KK29 citations92
US7166486B2Jan 23, 2007
Optical modulator, optical modulator manufacturing method, light information processing apparatus including optical modulator, image formation apparatus including optical modulator, and image projection and display apparatus including optical modulator
RICOH KK19 citations92
US7123872B2Oct 17, 2006
Cleaning device and method, image forming apparatus, and process cartridge
RICOH KK24 citations92
US7062212B2Jun 13, 2006
Cleaning apparatus, image forming apparatus, and process cartridge
RICOH KK29 citations92
US7024142B2Apr 4, 2006
Developing apparatus, developing method, image forming apparatus, image forming method and cartridge thereof
RICOH KK16 citations92
US6947691B2Sep 20, 2005
Electrostatic transportation device, development device and image formation apparatus
RICOH KK24 citations92
US6719469B2Apr 13, 2004
Ink jet recording apparatus capable of performing a duplex print operation
RICOH KK33 citations92
US5600356AFeb 4, 1997
Liquid jet recording head having improved radiator member
RICOH KK48 citations92
US5412413AMay 2, 1995
Method and apparatus for making liquid drop fly to form image by generating bubble in liquid
RICOH KK52 citations92
US4834533AMay 30, 1989
Measuring the refractive index of liquid
RICOH KK36 citations92
US4520367AMay 28, 1985
Ink jet head assembly
RICOH KK27 citations92
US4504844AMar 12, 1985
Ink jet printing apparatus
RICOH KK30 citations92
US4502055AFeb 26, 1985
Ink jet deaeration apparatus
RICOH KK34 citations92
US4173402ANov 6, 1979
Optoelectronic sensing apparatus
RICOH KK35 citations92
US7062204B2Jun 13, 2006
Classifier, developer, and image forming apparatus
RICOH KK23 citations91
US6941098B2Sep 6, 2005
Classifier, developer, and image forming apparatus
RICOH KK33 citations91
US4847631AJul 11, 1989
Charge and deflection control type ink jet printer
RICOH KK45 citations91
US7734233B2Jun 8, 2010
Development device, process cartridge, and image forming apparatus
RICOH KK8 citations84
US7415236B2Aug 19, 2008
Cleaning unit, process cartridge, and image-forming apparatus
RICOH KK18 citations84
US7123864B2Oct 17, 2006
Developing device using electrostatic transport member
RICOH KK19 citations84
US7526238B2Apr 28, 2009
Developing device, process cartridge and image forming apparatus moving toner particles by a phase-shifting electric field
RICOH KK13 citations83
US7236720B2Jun 26, 2007
Image forming apparatus and process cartridge
RICOH KK12 citations83
US7187892B2Mar 6, 2007
Toner transport device for image-forming device
RICOH KK13 citations82
US4677845AJul 7, 1987
Device for detecting viscosity of liquid
RICOH KK22 citations82
US4626867ADec 2, 1986
Method of preventing unregistered printing in multi-nozzle ink jet printing
RICOH KK24 citations82
US4435720AMar 6, 1984
Deflection control type ink jet printing apparatus
RICOH KK23 citations82
US4418352ANov 29, 1983
Ink jet printing apparatus
RICOH KK21 citations82
US4364060ADec 14, 1982
Nozzle position deviation compensation arrangement for ink jet printing device
RICOH KK26 citations82
US4310846AJan 12, 1982
Deflection compensated ink ejection printing apparatus
RICOH KK20 citations82
US4510509AApr 9, 1985
Ink ejection head
RICOH KK25 citations81
US4562442ADec 31, 1985
Ink-jet printing apparatus
RICOH KK15 citations74
US4558995ADec 17, 1985
Pump for supplying head of ink jet printer with ink under pressure
RICOH KK19 citations74
US4550321AOct 29, 1985
Charged ink-printer droplet detection
RICOH KK10 citations74
US4434428AFeb 28, 1984
Deflection detector for ink jet printing apparatus
RICOH KK16 citations74
US4426652AJan 17, 1984
Ink jet printing apparatus
RICOH KK12 citations74
US4395717AJul 26, 1983
Ink jet recording apparatus
RICOH KK11 citations74
US4393385AJul 12, 1983
Controllable ink drop velocity type ink-jet printer
RICOH KK9 citations74
US4365255ADec 21, 1982
Ink jet printer
RICOH KK10 citations74
US4364061ADec 14, 1982
Ink jet printing apparatus comprising automatic ink jet deflection adjustment means
RICOH KK13 citations74
US4313123AJan 26, 1982
Controllable ink drop velocity type ink-jet printer
RICOH KK13 citations74
Showing the top 50 of 72 patents by PatentIndex Score.