Inventor · disambiguated record
Yoshiki Ichikawa
Also filed as: ICHIKAWA YOSHIKI
15 granted patents·1 pending application·174 citations·filing 1989–2024
92Inventor score
Top patents by PatentIndex Score
16 records- 0187US5619312ADeveloping device with developer-supplying mechanismSHARP KK·Filed 1994·Granted Apr 8, 1997·42 cites·56 claims
- 0285US5946530ADeveloper processing apparatus provided with sealing member and sealing layer at rotary member supporting portionSHARP KK·Filed 1998·Granted Aug 31, 1999·35 cites·8 claims
- 0382US8644739B2Toner cartridge and image forming apparatus including the sameICHIKAWA YOSHIKI·Filed 2011·Granted Feb 4, 2014·4 cites·9 claims
- 0480US5166731ADeveloping unit having a rotation shaft and sealing memberSHARP KK·Filed 1991·Granted Nov 24, 1992·26 cites·6 claims
- 0577US6314262B1Toner supply system and toner cartridgeSHARP KK·Filed 2000·Granted Nov 6, 2001·17 cites·37 claims
- 0676US12209636B2Belt and system for acquiring belt state informationMITSUBOSHI BELTING LTD·Filed 2020·Granted Jan 28, 2025·1 cites·10 claims
- 0775US8649709B2Toner supplying device and image forming apparatusICHIKAWA YOSHIKI·Filed 2010·Granted Feb 11, 2014·2 cites·4 claims
- 0874USD451127SToner cartridgeSHARP KK·Filed 2001·Granted Nov 27, 2001·20 cites·1 claims
- 0969USD462712SToner cartridgeSHARP KK·Filed 2001·Granted Sep 10, 2002·16 cites·1 claims
- 1059US4989539ADeveloping apparatusSHARP KK·Filed 1989·Granted Feb 5, 1991·11 cites·32 claims
- 1148US2025218322A1Information processing apparatus and control methodLENOVO SINGAPORE PTE LTD·Filed 2024·Application pending·0 cites
- 1246US8781376B2Toner supply device and image forming apparatusICHIKAWA YOSHIKI·Filed 2012·Granted Jul 15, 2014·0 cites·6 claims
- 1344US9069233B2Mirror unit and image capturing apparatusICHIKAWA YOSHIKI·Filed 2012·Granted Jun 30, 2015·0 cites·10 claims
- 1443US9152086B2Toner cartridge with differential member and image forming apparatusSHARP KK·Filed 2014·Granted Oct 6, 2015·0 cites·5 claims
- 1537US8521070B2Toner cartridge and image forming apparatus including the sameICHIKAWA YOSHIKI·Filed 2011·Granted Aug 27, 2013·0 cites·15 claims
- 1630US6016411AEfficient development of an electrostatic latent imageSHARP KK·Filed 1998·Granted Jan 18, 2000·0 cites·11 claims
Join the waitlist — get patent alerts
Get an alert when Yoshiki Ichikawa 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 →