Inventor · disambiguated record
Ryuuichi Shimizu
Also filed as: SHIMIZU RYUUICHI
13 granted patents·3 pending applications·150 citations·filing 1991–2007
92Inventor score
Technology areasG03G
Top patents by PatentIndex Score
16 records- 0184US6094558ATransfer belt and electrophotographic apparatusHITACHI KOKI KK·Filed 1998·Granted Jul 25, 2000·36 cites·9 claims
- 0282US5649273ABelt-type fixing device having an irregular surface contourHITACHI LTD·Filed 1996·Granted Jul 15, 1997·24 cites·1 claims
- 0379US5363180AFixing device for electrophotography and electrophotographic apparatus incorporating the fixing deviceHITACHI LTD·Filed 1992·Granted Nov 8, 1994·18 cites·18 claims
- 0478US7459252B2Electrophotographic tonerRICOH PRINTING SYS LTD·Filed 2007·Granted Dec 2, 2008·4 cites·17 claims
- 0578US5345301AImage fixing device and electrophotographic apparatus incorporated with such deviceHITACHI LTD·Filed 1991·Granted Sep 6, 1994·23 cites·10 claims
- 0666US5519479AFixing device for electrophotography and electrophotographic apparatus incorporating the fixing deviceHITACHI LTD·Filed 1995·Granted May 21, 1996·12 cites·1 claims
- 0765US5508138AFixing device for electrophotography and electrophotographic apparatus incorporating the fixing deviceHITACHI LTD·Filed 1994·Granted Apr 16, 1996·10 cites·33 claims
- 0863US7022448B2Electrophotographic toner and image-forming systemRICOH PRINTING SYS LTD·Filed 2003·Granted Apr 4, 2006·8 cites·53 claims
- 0962US6783909B2Electrostatic image developing toner and image forming methodHITACHI PRINTING SOLUTIONS LTD·Filed 2003·Granted Aug 31, 2004·8 cites·6 claims
- 1049US7327974B2Electrophotographic toner and image-forming systemRICOH PRINTING SYS LTD·Filed 2003·Granted Feb 5, 2008·3 cites·4 claims
- 1144US7144667B2Electrostatic charge image developing toner, and developer, image forming apparatus and image forming method using the same tonerRICOH PRINTING SYS LTD·Filed 2004·Granted Dec 5, 2006·2 cites·19 claims
- 1236US6696210B2Electrostatic charge developing toner and image forming method using the sameHITACHI PRINTING SOLUTIONS LTD·Filed 2002·Granted Feb 24, 2004·0 cites·18 claims
- 1334US6131000AElectrophotographic printing apparatus using electric potential dividing developmentHITACHI LTD·Filed 1998·Granted Oct 10, 2000·2 cites·6 claims
- 1434US2004058265A1Electrostatic charge image developing developer and image forming apparatus using the sameHITACHI PRINTING SOLUTIONS LTD·Filed 2003·Application pending·0 cites
- 1533US2004058259A1Electrostatic charge image developing toner and image forming apparatus using the sameHITACHI PRINTING SOLUTIONS LTD·Filed 2003·Application pending·0 cites
- 1632US2002022189A1Toner for developing electrostatic charge image and image forming apparatus using the sameHITACHI KOKI KK·Filed 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →