Inventor · disambiguated record
Shuho Yokokawa
Also filed as: YOKOKAWA SHUHO
25 granted patents·353 citations·filing 1995–2007
96Inventor score
Top patents by PatentIndex Score
25 records- 0190US6601951B2Printers and printing methodHITACHI KOKI KK·Filed 2001·Granted Aug 5, 2003·31 cites·14 claims
- 0289US6442360B1Lamp holder, and lamp cartridge using the same and fixing unit using the sameHITACHI KOKI KK·Filed 2000·Granted Aug 27, 2002·33 cites·6 claims
- 0387US5862436AFixing apparatus and method for electrophotographic apparatus including temperature detecting mechanism for heat rollerHITACHI KOKI KK·Filed 1997·Granted Jan 19, 1999·48 cites·5 claims
- 0484US6650864B2Printing systemHITACHI KOKI KK·Filed 2001·Granted Nov 18, 2003·27 cites·14 claims
- 0583US7450883B2Film loader for an image forming apparatusRICOH PRINTING SYS LTD·Filed 2007·Granted Nov 11, 2008·5 cites·21 claims
- 0683US5774777AContinuous recording medium friction-conveying mechanism in image forming apparatusHITACHI LTD·Filed 1996·Granted Jun 30, 1998·36 cites·16 claims
- 0775US7295794B2Film loader for an image forming apparatusRICOH PRINTING SYS LTD·Filed 2006·Granted Nov 13, 2007·3 cites·3 claims
- 0874US6496672B2Image production apparatusHITACHI LTD·Filed 2000·Granted Dec 17, 2002·14 cites·4 claims
- 0973US6104907AImage recording apparatus which prevents variation in speed of a recording medium and reduces shift values thereofHITACHI LTD·Filed 1998·Granted Aug 15, 2000·22 cites·26 claims
- 1070US6927875B2Printing system and printing methodHITACHI KOKI KK·Filed 2001·Granted Aug 9, 2005·14 cites·5 claims
- 1170US6285854B1Image recording apparatusHITACHI LTD·Filed 2000·Granted Sep 4, 2001·12 cites·6 claims
- 1266US7336917B2Film loader for an image forming apparatusRICOH PRINTING SYS LTD·Filed 2003·Granted Feb 26, 2008·7 cites·12 claims
- 1365US6393248B1Fixing device of image forming apparatus and fixing rollerHITACHI KOKI KK·Filed 2000·Granted May 21, 2002·9 cites·4 claims
- 1464US6130408ARecording apparatus with conveyed recording sheet heated by movable heaterHITACHI LTD·Filed 1998·Granted Oct 10, 2000·16 cites·6 claims
- 1552US5842098AFixing apparatus and fixing method for electrophotographic apparatusHITACHI KOKI KK·Filed 1997·Granted Nov 24, 1998·10 cites·7 claims
- 1652US5652949APreheating controller for a two-stage electrophotographic printing systemHITACHI KOKI KK·Filed 1996·Granted Jul 29, 1997·12 cites·5 claims
- 1749USD469462SHeater lamp unit for fixing toner in an image forming apparatusHITACHI KOKI KK·Filed 2000·Granted Jan 28, 2003·7 cites·1 claims
- 1846US5557386AToner recovering device for electrophotographic apparatus and toner recovering filter for said toner recovering deviceHITACHI KOKI KK·Filed 1995·Granted Sep 17, 1996·8 cites·4 claims
- 1944US5805953AMethod and apparatus for indicating time for exchanging toner recovery container of electrographic apparatusHITACHI KOKI KK·Filed 1996·Granted Sep 8, 1998·7 cites·5 claims
- 2044US5745817AElectrophotographic apparatus and paper detector thereof and paper detecting method thereofHITACHI KOKI KK·Filed 1996·Granted Apr 28, 1998·7 cites·8 claims
- 2141US5995130ALaser beam scanning apparatus and method providing controllable print densityHITACHI KOKI KK·Filed 1996·Granted Nov 30, 1999·8 cites·4 claims
- 2240US6947698B2Fixing apparatus of electrophotographic printerRICOH PRINTING SYS LTD·Filed 2003·Granted Sep 20, 2005·1 cites·2 claims
- 2340US5606403AToner supply control system for an electrophotographic apparatusHITACHI KOKI KK·Filed 1995·Granted Feb 25, 1997·6 cites·6 claims
- 2439US5802444AElectrophotographic apparatus for a continuous strip of paper sheets fixed by a heat fixing unitHITACHI KOKI KK·Filed 1997·Granted Sep 1, 1998·5 cites·17 claims
- 2536US5881348ARelease agent supplying member, release agent supplying apparatus and fixing apparatus using the sameHITACHI KOKI KK·Filed 1997·Granted Mar 9, 1999·5 cites·20 claims
Join the waitlist — get patent alerts
Get an alert when Shuho Yokokawa files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →