Inventor · disambiguated record
Michio Umezawa
Also filed as: UMEZAWA MICHIO
16 granted patents·519 citations·filing 1980–2007
95Inventor score
Top patents by PatentIndex Score
16 records- 0195US5818482AInk jet printing headRICOH KK·Filed 1995·Granted Oct 6, 1998·134 cites·30 claims
- 0292US4660825ASheet clamping deviceRICOH KK·Filed 1980·Granted Apr 28, 1987·59 cites·58 claims
- 0390US4524365AReceptacle for waste ink collection in ink jet recording apparatusRICOH KK·Filed 1983·Granted Jun 18, 1985·48 cites·4 claims
- 0488US5754202AInk jet recording apparatusRICOH KK·Filed 1996·Granted May 19, 1998·77 cites·10 claims
- 0587US4626874ALiquid level detector for ink jet printerRICOH KK·Filed 1985·Granted Dec 2, 1986·44 cites·10 claims
- 0685US8186793B2Image processing method, program, image processing apparatus, image forming apparatus, image forming systemHOSAKA SHIGETOSHI·Filed 2007·Granted May 29, 2012·8 cites·13 claims
- 0781US7710620B2Image processing method, recorded matter, storage medium, image processing apparatus, image forming method, image forming apparatus, image forming system, and inkRICOH KK·Filed 2006·Granted May 4, 2010·7 cites·14 claims
- 0881US4420150AApparatus and method for separating a single sheet from a stack and conveying itRICOH KK·Filed 1980·Granted Dec 13, 1983·25 cites·19 claims
- 0976US4834533AMeasuring the refractive index of liquidRICOH KK·Filed 1987·Granted May 30, 1989·36 cites·4 claims
- 1073US4739347AInk supply system for use in an ink-jet printerRICOH KK·Filed 1986·Granted Apr 19, 1988·20 cites·8 claims
- 1170US4388627AInk-jet printing headRICOH KK·Filed 1981·Granted Jun 14, 1983·16 cites·5 claims
- 1261US4429317AInk ejection headRICOH KK·Filed 1982·Granted Jan 31, 1984·12 cites·3 claims
- 1360US4369964ASheet feed apparatus for printer or the likeRICOH KK·Filed 1980·Granted Jan 25, 1983·12 cites·4 claims
- 1459US4449135AInk ejection headRICOH KK·Filed 1982·Granted May 15, 1984·10 cites·5 claims
- 1558US4451169APaper loading apparatusRICOH KK·Filed 1981·Granted May 29, 1984·10 cites·1 claims
- 1656US7950770B2Method and droplet-ejecting head for droplet-ejecting recording apparatus capable of achieving high recording image qualityRICOH CO LTD·Filed 2007·Granted May 31, 2011·1 cites·20 claims
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