Inventor · disambiguated record
Takao Kumasaka
Also filed as: KUMASAKA TAKAO
21 granted patents·401 citations·filing 1987–1999
96Inventor score
Top patents by PatentIndex Score
21 records- 0193US4959693ADuplex reproducing apparatus with device for cooling and conveying fused toner imageHITACHI LTD·Filed 1988·Granted Sep 25, 1990·49 cites·9 claims
- 0292US5291253ACorona deterioration and moisture compensation for transfer unit in an electrophotographic apparatusHITACHI LTD·Filed 1990·Granted Mar 1, 1994·49 cites·22 claims
- 0391US5832350ADeveloping apparatus and color electrophotographic apparatus using the sameHITACHI LTD·Filed 1997·Granted Nov 3, 1998·62 cites·36 claims
- 0491US5365325AMethod of multi-color recording using electro-photography process and apparatus therefor wherein mixed colors generation is preventedHITACHI LTD·Filed 1993·Granted Nov 15, 1994·46 cites·12 claims
- 0586US4998143AElectrophotographic image transfer member, electrophotographic image transfer device and electrophotographic recording apparatusHITACHI LTD·Filed 1989·Granted Mar 5, 1991·29 cites·38 claims
- 0676US7003241B1Image recording device and an image recording systemRICOH PRINTING SYS LTD·Filed 1999·Granted Feb 21, 2006·35 cites·22 claims
- 0769US4947200ADeveloping device and multi-color recording apparatusHITACHI LTD·Filed 1989·Granted Aug 7, 1990·15 cites·20 claims
- 0867US5860049ADeveloping apparatus and picture image forming apparatusHITACHI LTD·Filed 1997·Granted Jan 12, 1999·19 cites·7 claims
- 0965US4862828AElectrophotographic recording method and apparatus with non-contact developmentHITACHI LTD·Filed 1988·Granted Sep 5, 1989·14 cites·12 claims
- 1064US5081502ARadiant heat fixing apparatusHITACHI LTD·Filed 1988·Granted Jan 14, 1992·13 cites·9 claims
- 1154US5430528AMagnetic brush with bristle height equal to developing gapHITACHI LTD·Filed 1990·Granted Jul 4, 1995·10 cites·79 claims
- 1250US4952951AElectrophotographic recording apparatusHITACHI LTD·Filed 1989·Granted Aug 28, 1990·10 cites·33 claims
- 1348US4992923AElectrical power supply, fusing apparatus and recording apparatus using the sameHITACHI LTD·Filed 1989·Granted Feb 12, 1991·8 cites·11 claims
- 1447US5008691AMulti-color electrophotograph apparatusHITACHI LTD·Filed 1989·Granted Apr 16, 1991·6 cites·24 claims
- 1547US4782362ARecording apparatus having a flash fusing apparatusHITACHI LTD·Filed 1987·Granted Nov 1, 1988·8 cites·17 claims
- 1641US5893664AMulti-color image forming apparatus having arrangements for reducing ozone generationHITCAHI LTD·Filed 1997·Granted Apr 13, 1999·6 cites·24 claims
- 1741US5315353AImage recording method including determining a gap between a photosensitive medium and a developing roller and apparatus thereforHITACHI LTD·Filed 1992·Granted May 24, 1994·6 cites·18 claims
- 1840US5745818AImage formation method and image formation apparatusHITACHI LTD·Filed 1994·Granted Apr 28, 1998·5 cites·34 claims
- 1939US5574546ADeveloping apparatus for an electrophotographic machineHITACHI LTD·Filed 1995·Granted Nov 12, 1996·5 cites·22 claims
- 2039US4821052AFlash fusing apparatus for reducing occurrence of spots on recording paperHITACHI LTD·Filed 1987·Granted Apr 11, 1989·4 cites·19 claims
- 2131US5307147AElectrophotographic recording apparatus having a plurality of developing devices which can be changed overHITACHI LTD·Filed 1992·Granted Apr 26, 1994·2 cites·27 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →