Inventor · disambiguated record
Gyo Muramatsu
Also filed as: MURAMATSU GYO
19 granted patents·3 pending applications·510 citations·filing 1990–2012
96Inventor score
Top patents by PatentIndex Score
22 records- 0187US5141714AExhaust gas cleanerRIKEN KK·Filed 1990·Granted Aug 25, 1992·78 cites·11 claims
- 0281US5534237AMethod of cleaning an exhaust gas and exhaust gas cleaner thereforKUBUSHIKI KAISHA RIKEN·Filed 1995·Granted Jul 9, 1996·54 cites·5 claims
- 0376US5645804AMethod for cleaning exhaust gas containing nitrogen oxidesRIKEN KK·Filed 1995·Granted Jul 8, 1997·47 cites·24 claims
- 0475US5340548AExhaust gas cleaner and method of cleaning exhaust gasRIKEN KK·Filed 1993·Granted Aug 23, 1994·24 cites·4 claims
- 0575US5208202AExhaust gas cleaner and method of cleaning exhaust gas catalyst for cleaning exhaust gasRIKEN KK·Filed 1991·Granted May 4, 1993·28 cites·17 claims
- 0674US9140361B2Multi-piece oil ringTAKAHASHI JUNICHI·Filed 2012·Granted Sep 22, 2015·3 cites·20 claims
- 0774US5290530AMethod of cleaning exhaust gasRIKEN KK·Filed 1992·Granted Mar 1, 1994·32 cites·3 claims
- 0872US5747410AExhaust gas cleaner and method of cleaning exhaust gasRIKEN KK·Filed 1995·Granted May 5, 1998·46 cites·23 claims
- 0971US5320999AExhaust gas cleaner and method of cleaning exhaust gasRIKEN KK·Filed 1992·Granted Jun 14, 1994·25 cites·8 claims
- 1070US9353864B2Oil ring for internal combustion engineGAO YUNZHI·Filed 2010·Granted May 31, 2016·3 cites·1 claims
- 1169US5589432AExhaust gas cleaner and method for cleaning sameRIKEN KK·Filed 1995·Granted Dec 31, 1996·27 cites·12 claims
- 1268US5658543AExhaust gas cleaner and method for cleaning sameRIKEN KK·Filed 1995·Granted Aug 19, 1997·30 cites·8 claims
- 1364US5824621AExhaust gas cleanerRIKEN KK·Filed 1995·Granted Oct 20, 1998·26 cites·6 claims
- 1464US5213781AMethod of cleaning nitrogen oxide containing exhaust gasRIKEN KK·Filed 1991·Granted May 25, 1993·22 cites·4 claims
- 1560US5384110AExhaust gas cleaner and method of cleaning exhaust gasRIKEN KK·Filed 1992·Granted Jan 24, 1995·16 cites·5 claims
- 1659US5670444AExhaust gas cleaner and method for cleaning sameRIKEN KK·Filed 1995·Granted Sep 23, 1997·21 cites·17 claims
- 1748US5885923AExhaust gas cleanerRIKEN KK·Filed 1998·Granted Mar 23, 1999·10 cites·3 claims
- 1847US5658542AExhaust gas cleaner and method for cleaning sameRIKEN KK·Filed 1994·Granted Aug 19, 1997·11 cites·4 claims
- 1947US2010140880A1Piston ringHAYASHI TOSHIKATSU·Filed 2007·Application pending·0 cites
- 2045US2006061043A1Three piece-combined oil ringRIKEN KK·Filed 2004·Application pending·0 cites
- 2143US2005269787A1Piston ringRIKEN KK·Filed 2003·Application pending·0 cites
- 2234US5744111AMethod for cleaning exhaust gasRIKEN KK·Filed 1996·Granted Apr 28, 1998·7 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →