Inventor · disambiguated record
Hiroshi Ishii
Also filed as: ARASHI MASAHIKO · ISHII HIROSHI · OKAZAKI SAKIHO
303 granted patents·42 pending applications·5,248 citations·filing 1977–2025
99Inventor score
Files withSHARP KK57KAWASAKI HEAVY IND LTD36RICOH KK36ISHII HIROSHI22MASSACHUSETTS INST TECHNOLOGY17
Top patents by PatentIndex Score
345 records- 0199US8195070B2Developer container, developer supplying device, and image forming apparatusHOSOKAWA HIROSHI·Filed 2011·Granted Jun 5, 2012·47 cites·12 claims
- 0299US8005406B2Developer container, developer supplying device, and image forming apparatusRICOH CO LTD·Filed 2010·Granted Aug 23, 2011·60 cites·18 claims
- 0399US7835673B2Developer container, developer supplying device, and image forming apparatusRICOH CO LTD·Filed 2008·Granted Nov 16, 2010·58 cites·28 claims
- 0499US7697870B2Developer container, developer supplying device, and image forming apparatusRICOH KK·Filed 2009·Granted Apr 13, 2010·54 cites·26 claims
- 0599US7519317B2Developer container, developer supplying device, and image forming apparatusRICOH KK·Filed 2007·Granted Apr 14, 2009·72 cites·25 claims
- 0699US7480476B2Developer container, developer supplying device, and image forming apparatusRICOH KK·Filed 2007·Granted Jan 20, 2009·115 cites·20 claims
- 0799US7321744B2Developer container, developer supplying device, and image forming apparatusRICOH KK·Filed 2004·Granted Jan 22, 2008·111 cites·49 claims
- 0898US8456562B2Image pickup unitISHII HIROSHI·Filed 2012·Granted Jun 4, 2013·66 cites·7 claims
- 0998US6937838B2Waste toner collecting device, and image forming apparatus including the waste toner collecting deviceRICOH KK·Filed 2003·Granted Aug 30, 2005·89 cites·42 claims
- 1098US5208497ALinear driving apparatusSHARP KK·Filed 1990·Granted May 4, 1993·116 cites·12 claims
- 1197US7447469B2Image forming device and mounting member for mounting a toner container thereonRICOH KK·Filed 2005·Granted Nov 4, 2008·36 cites·49 claims
- 1297US6898407B2Desktop color image forming apparatus and method of making the sameRICOH KK·Filed 2003·Granted May 24, 2005·61 cites·56 claims
- 1397US4657951AFibrous material-based friction memberSHINETSU CHEM IND CO·Filed 1986·Granted Apr 14, 1987·72 cites·6 claims
- 1496US7322881B2Exhaust deviceRICOH KK·Filed 2005·Granted Jan 29, 2008·23 cites·7 claims
- 1596US6112046AImage forming apparatus having recycling of residual tonerRICOH KK·Filed 1998·Granted Aug 29, 2000·141 cites·67 claims
- 1695US9855937B2MotorcycleKAWASAKI HEAVY IND LTD·Filed 2013·Granted Jan 2, 2018·28 cites·9 claims
- 1795US7263309B2Desktop color image forming apparatus and method of making the sameRICOH KK·Filed 2005·Granted Aug 28, 2007·15 cites·26 claims
- 1895US7184684B2Image forming apparatus, process cartridge, and waste toner recovery deviceRICOH KK·Filed 2005·Granted Feb 27, 2007·16 cites·24 claims
- 1995US6741065B1Electric device and method for charging and discharging battery unit of the sameTOKYO R & D KK·Filed 2000·Granted May 25, 2004·206 cites·14 claims
- 2095US4589000AInk jet printer of the ink-on-demand typeEPSON CORP·Filed 1985·Granted May 13, 1986·71 cites·1 claims
- 2194US9452629B1Image forming apparatus and erasing apparatusTOSHIBA KK·Filed 2016·Granted Sep 27, 2016·5 cites·12 claims
- 2294US9188918B1Image forming apparatus, control method and non-temporary recording mediumTOSHIBA KK·Filed 2014·Granted Nov 17, 2015·8 cites·9 claims
- 2394US8208015B2Endoscope and endoscope apparatusUNSAI HIROSHI·Filed 2007·Granted Jun 26, 2012·71 cites·9 claims
- 2494US6975830B2Image forming apparatus, process cartridge, and waste toner recovery deviceRICOH KK·Filed 2003·Granted Dec 13, 2005·37 cites·17 claims
- 2594US6647223B2Open/close switch mechanism for use in an image forming apparatusRICOH KK·Filed 2001·Granted Nov 11, 2003·53 cites·27 claims
- 2693US8824686B1Cluster key synchronizationISHII HIROSHI·Filed 2007·Granted Sep 2, 2014·35 cites·10 claims
- 2793US7333749B2Desktop color image forming apparatus and method of making the sameRICOH KK·Filed 2007·Granted Feb 19, 2008·10 cites·32 claims
- 2893US7174121B2Apparatus for image forming and image developing with an improvement of toner container holdingRICOH KK·Filed 2005·Granted Feb 6, 2007·14 cites·35 claims
- 2993US6984206B2Endoscope and endoscope system with optical phase modulation memberOLYMPUS CORP·Filed 2002·Granted Jan 10, 2006·78 cites·19 claims
- 3092US11415916B1Image forming apparatus with image former and fuserTOSHIBA TEC KK·Filed 2021·Granted Aug 16, 2022·2 cites·19 claims
- 3192US10337536B2Methods and apparatus for shape controlMASSACHUSETTS INST TECHNOLOGY·Filed 2017·Granted Jul 2, 2019·6 cites·2 claims
- 3292US7016629B2Image forming apparatus with discharging unit of increased capacityRICOH KK·Filed 2004·Granted Mar 21, 2006·30 cites·38 claims
- 3391US10509559B2Micro-pillar methods and apparatusMASSACHUSETTS INST TECHNOLOGY·Filed 2016·Granted Dec 17, 2019·6 cites·16 claims
- 3491US9664210B2Methods and apparatus for layer jammingOU JIFEI·Filed 2014·Granted May 30, 2017·19 cites·20 claims
- 3590US8547424B2Endoscope system and lens unitISHII HIROSHI·Filed 2008·Granted Oct 1, 2013·15 cites·8 claims
- 3690US7760400B2Creating multiple threshold matrices to be used in error diffused multilevel halftoningRICOH KK·Filed 2005·Granted Jul 20, 2010·15 cites·30 claims
- 3790US7454157B2Image forming device and unit position adjustment methodRICOH KK·Filed 2006·Granted Nov 18, 2008·11 cites·19 claims
- 3890US7215907B2Method and apparatus for image forming capable of effectively eliminating color displacementsRICOH KK·Filed 2004·Granted May 8, 2007·32 cites·73 claims
- 3990US7098776B2Methods and apparatus for vibrotactile communicationMASSACHUSETTS INST TECHNOLOGY·Filed 2004·Granted Aug 29, 2006·73 cites·12 claims
- 4090US5341164ASolid ink supply for ink jetSEIKO EPSON CORP·Filed 1993·Granted Aug 23, 1994·61 cites·24 claims
- 4190US4850703AMethod of mixing pulverulent materials and device for practicing the sameMATSUI MFG CO·Filed 1987·Granted Jul 25, 1989·86 cites·2 claims
- 4290US4742369AElectronic still cameraCASIO COMPUTER CO LTD·Filed 1987·Granted May 3, 1988·103 cites·14 claims
- 4390US4620202AInk jet printer of the ink-on-demand typeSEIKO EPSON CORP·Filed 1985·Granted Oct 28, 1986·40 cites·7 claims
- 4490US4342201AEnergy recovery apparatus for a gas compressor plantKAWASAKI HEAVY IND LTD·Filed 1981·Granted Aug 3, 1982·51 cites·9 claims
- 4589US8611542B1Peer to peer key synchronizationISHII HIROSHI·Filed 2007·Granted Dec 17, 2013·20 cites·19 claims
- 4689US7450867B2Image forming apparatus, toner density control method, toner density control program and storage medium for storing the programSHARP KK·Filed 2005·Granted Nov 11, 2008·11 cites·13 claims
- 4789US7400851B2Image forming apparatus with pressure applying members that apply pressure to support shaftsRICOH KK·Filed 2005·Granted Jul 15, 2008·11 cites·54 claims
- 4888US7748214B2Exhaust gas purification system for hybrid vehicleNISSAN MOTOR·Filed 2007·Granted Jul 6, 2010·22 cites·23 claims
- 4988US7313344B2Image forming apparatus with detachable power-requiring unit and unit positioning memberRICOH KK·Filed 2006·Granted Dec 25, 2007·7 cites·20 claims
- 5088US5438437AImage forming apparatus with exposure, size, and position correction for pixelsKONISHIROKU PHOTO IND·Filed 1992·Granted Aug 1, 1995·40 cites·7 claims
Showing the top 50 of 345 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →