Inventor · disambiguated record
Hiroshi Kawahito
Also filed as: KAWAHITO HIROSHI
19 granted patents·210 citations·filing 1991–2019
94Inventor score
Technology areasG03G
Top patents by PatentIndex Score
19 records- 0191US7542704B2Toner carrier apparatus, toner feeding apparatus, and image forming apparatusSHARP KK·Filed 2007·Granted Jun 2, 2009·12 cites·14 claims
- 0287US5619312ADeveloping device with developer-supplying mechanismSHARP KK·Filed 1994·Granted Apr 8, 1997·42 cites·56 claims
- 0383USD464369SToner cartridgeSHARP KK·Filed 2001·Granted Oct 15, 2002·28 cites·1 claims
- 0480US10551794B2Developing device including exhaust duct and filter and image forming apparatus including developing deviceSHARP KK·Filed 2019·Granted Feb 4, 2020·1 cites·8 claims
- 0580US7925182B2Image forming apparatusSHARP KK·Filed 2008·Granted Apr 12, 2011·6 cites·9 claims
- 0680US6360066B1Developing apparatus having stirring shafts with elliptic stirring vanesSHARP KK·Filed 2000·Granted Mar 19, 2002·19 cites·8 claims
- 0779USD463817SDeveloping unit for an image forming apparatusSHARP KK·Filed 2001·Granted Oct 1, 2002·25 cites·1 claims
- 0878US7805096B2Toner conveying device, toner supply device and image forming apparatus using theseSHARP KK·Filed 2007·Granted Sep 28, 2010·5 cites·11 claims
- 0975USD464370SToner cartridgeSHARP KK·Filed 2001·Granted Oct 15, 2002·20 cites·1 claims
- 1072US7502576B2Development apparatus for mixing recycled developer with toner in a toner supply path and image forming apparatus having sameSHARP KK·Filed 2005·Granted Mar 10, 2009·4 cites·3 claims
- 1170US7627274B2Toner conveying device, toner supply device and image forming apparatus using theseSHARP KK·Filed 2007·Granted Dec 1, 2009·3 cites·20 claims
- 1268US7505711B2Waste developer collecting device and image forming apparatus provided therewithSHARP KK·Filed 2005·Granted Mar 17, 2009·3 cites·8 claims
- 1368US7440717B2Developing apparatus and image forming apparatus with toner supply portion opening/closing mechanismSHARP KK·Filed 2006·Granted Oct 21, 2008·3 cites·4 claims
- 1464US6628910B2Toner cartridge for image forming apparatusSHARP KK·Filed 2002·Granted Sep 30, 2003·9 cites·8 claims
- 1561US5175587ADeveloping apparatus having a detachable developer cartridgeSHARP KK·Filed 1991·Granted Dec 29, 1992·14 cites·18 claims
- 1657USD468763SSensitive drum cartridge for an image forming apparatusSHARP KK·Filed 2001·Granted Jan 14, 2003·10 cites·1 claims
- 1752US10788786B2Image forming apparatusSHARP KK·Filed 2019·Granted Sep 29, 2020·0 cites·6 claims
- 1842US5243389AToner hopper having stirring and feeding rollersSHARP KK·Filed 1992·Granted Sep 7, 1993·6 cites·10 claims
- 1936US8099014B2Image forming apparatusKAWAHITO HIROSHI·Filed 2008·Granted Jan 17, 2012·0 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Hiroshi Kawahito 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 →