Inventor · disambiguated record
Toshihisa Ishida
Also filed as: ISHIDA TOSHIHISA
21 granted patents·1 pending application·191 citations·filing 1990–2006
95Inventor score
Technology areasG03G
Files withSHARP KK22
Top patents by PatentIndex Score
22 records- 0183US5839018AToner density control for an image forming apparatusSHARP KK·Filed 1996·Granted Nov 17, 1998·39 cites·27 claims
- 0275US7524600B2Electrophotographic tonerSHARP KK·Filed 2006·Granted Apr 28, 2009·4 cites·12 claims
- 0375US5981129AElectrophotographic toner and method of manufacturing sameSHARP KK·Filed 1998·Granted Nov 9, 1999·26 cites·29 claims
- 0471US5923922AImage forming apparatus with flying toner detecting deviceSHARP KK·Filed 1996·Granted Jul 13, 1999·22 cites·70 claims
- 0568US5826136AImage stabilizing method for use in an image forming apparatusSHARP KK·Filed 1997·Granted Oct 20, 1998·19 cites·7 claims
- 0666US7011920B2Non-magnetic mono-component toner and developing method with the sameSHARP KK·Filed 2003·Granted Mar 14, 2006·10 cites·4 claims
- 0765US6317576B1Electrophotographic developing unitSHARP KK·Filed 2000·Granted Nov 13, 2001·10 cites·12 claims
- 0856US5923920AImage forming apparatus for controlling processing conditions in image forming process by detection of tiner patch density formed on photoreceptor surfaceSHARP KK·Filed 1998·Granted Jul 13, 1999·12 cites·32 claims
- 0953US5734948AImage stabilizerSHARP KK·Filed 1996·Granted Mar 31, 1998·11 cites·29 claims
- 1050US6783906B2Image forming apparatusSHARP KK·Filed 2003·Granted Aug 31, 2004·4 cites·39 claims
- 1145US6103439AToner used for electrophotographySHARP KK·Filed 1998·Granted Aug 15, 2000·7 cites·7 claims
- 1241US5266433ADeveloper for electrophotographySHARP KK·Filed 1990·Granted Nov 30, 1993·7 cites·16 claims
- 1340US6004713AToner, Developer, and process for producing the sameSHARP KK·Filed 1998·Granted Dec 21, 1999·5 cites·16 claims
- 1439US7601475B2Carrier and developing agent for electrophotographySHARP KK·Filed 2006·Granted Oct 13, 2009·0 cites·4 claims
- 1538US5565294AElectrostatic charge image-developing toner with polyethylene additiveSHARP KK·Filed 1995·Granted Oct 15, 1996·4 cites·8 claims
- 1638US5082761ASet of electrophotographic tonersSHARP KK·Filed 1990·Granted Jan 21, 1992·5 cites·9 claims
- 1737US6864031B2Electrophotographic developer and image-forming method using the developerSHARP KK·Filed 2004·Granted Mar 8, 2005·0 cites·8 claims
- 1835US2002119387A1Electrophotographic developer and image-forming method using the developerSHARP KK·Filed 2001·Application pending·0 cites
- 1932US6110635AToner for electrophotography and a production method thereofSHARP KK·Filed 1998·Granted Aug 29, 2000·2 cites·8 claims
- 2032US5976751AElectrophotographic printing-use tonerSHARP KK·Filed 1998·Granted Nov 2, 1999·2 cites·8 claims
- 2129US6066423AToner for electrophotographySHARP KK·Filed 1999·Granted May 23, 2000·0 cites·6 claims
- 2228US5358819ADeveloper for electrophotographySHARP KK·Filed 1993·Granted Oct 25, 1994·2 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →