Inventor · disambiguated record
Yoshihisa Minakawa
Also filed as: MINAKAWA YOSHIHISA
21 granted patents·128 citations·filing 1986–2008
95Inventor score
Technology areasB65H
Top patents by PatentIndex Score
21 records- 0181US7901176B2Sheet supply/convey supporting deviceRICOH CO LTD·Filed 2008·Granted Mar 8, 2011·7 cites·7 claims
- 0272USD296703SCameraRICOH CO LTD·Filed 1986·Granted Jul 12, 1988·13 cites·1 claims
- 0362USD428914SElectronic copying machineRICOH CO LTD·Filed 1999·Granted Aug 1, 2000·12 cites·1 claims
- 0462USD425108SElectronic copying machineRICOH CO LTD·Filed 1999·Granted May 16, 2000·12 cites·1 claims
- 0560USD521056SFull color multi-function printing machineRICOH KK·Filed 2004·Granted May 16, 2006·11 cites·1 claims
- 0658US6536645B2Image forming apparatus capable of smoothly feeding large-size sheet into main bodyRICOH KK·Filed 2002·Granted Mar 25, 2003·5 cites·15 claims
- 0755USD443886SElectronic copying machineRICOH KK·Filed 1999·Granted Jun 19, 2001·9 cites·1 claims
- 0852USD331772SElectrostatic copying machineRICOH CO LTD·Filed 1991·Granted Dec 15, 1992·8 cites·1 claims
- 0950USD306308SCameraRICOH CO LTD·Filed 1987·Granted Feb 27, 1990·5 cites·1 claims
- 1049US6631867B2Image forming apparatusRICOH KK·Filed 2001·Granted Oct 14, 2003·2 cites·11 claims
- 1149USD358411SElectronic copying machineRICOH CO LTD·Filed 1993·Granted May 16, 1995·6 cites·1 claims
- 1247USD588188SHigh-speed copying machine with a finisherRICOH KK·Filed 2006·Granted Mar 10, 2009·7 cites·1 claims
- 1347USD350978SDigital printerRICOH CO LTD·Filed 1992·Granted Sep 27, 1994·5 cites·1 claims
- 1444USD580482SDry electrostatic copying machineRICOH KK·Filed 2007·Granted Nov 11, 2008·6 cites·1 claims
- 1544USD452874SWide digital copying machineRICOH KK·Filed 2001·Granted Jan 8, 2002·5 cites·1 claims
- 1643USD429276SAutomatic document feeder for electronic copying machineRICOH CO LTD·Filed 1999·Granted Aug 8, 2000·5 cites·1 claims
- 1743USD314582SCameraRICOH CO LTD·Filed 1988·Granted Feb 12, 1991·3 cites·1 claims
- 1837USD494210SWide digital copying machineRICOH KK·Filed 2003·Granted Aug 10, 2004·4 cites·1 claims
- 1933USD595766SMass sheet feed trayRICOH KK·Filed 2007·Granted Jul 7, 2009·2 cites·1 claims
- 2031USD426260SSheet feeder for electronic copying machineRICOH CO LTD·Filed 1999·Granted Jun 6, 2000·1 cites·1 claims
- 2129USD429275SStacker for electronic copying machineRICOH CO LTD·Filed 1999·Granted Aug 8, 2000·0 cites·1 claims
Join the waitlist — get patent alerts
Get an alert when Yoshihisa Minakawa 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 →