Inventor · disambiguated record
Katsuhiko Oshikawa
Also filed as: OSHIKAWA KATSUHIKO
16 granted patents·2 pending applications·31 citations·filing 2006–2013
90Inventor score
Top patents by PatentIndex Score
18 records- 0190US8746274B2Hydrogen supply apparatus and fuel gas supply apparatusTOYOTA MOTOR CO LTD·Filed 2013·Granted Jun 10, 2014·10 cites·3 claims
- 0286US9011569B2Particulate filterOTSUKI HIROSHI·Filed 2012·Granted Apr 21, 2015·5 cites·6 claims
- 0381US9080480B2Exhaust purification system for internal combustion engineOTSUKI HIROSHI·Filed 2012·Granted Jul 14, 2015·3 cites·17 claims
- 0473US8555699B2Detector for detecting sulfur componentsOTSUKI HIROSHI·Filed 2010·Granted Oct 15, 2013·2 cites·2 claims
- 0572US7851097B2Fuel cell systemTOYOTA MOTOR CO LTD·Filed 2007·Granted Dec 14, 2010·2 cites·4 claims
- 0668US8621852B2Detector for detecting sulfur componentsOSHIKAWA KATSUHIKO·Filed 2009·Granted Jan 7, 2014·2 cites·9 claims
- 0765US8227133B2Fuel cell systemOSHIKAWA KATSUHIKO·Filed 2008·Granted Jul 24, 2012·4 cites·7 claims
- 0861US8955313B2Exhaust purification system of internal combustion engineMATSUO JUNICHI·Filed 2011·Granted Feb 17, 2015·1 cites·13 claims
- 0957US9057299B2Exhaust purification system for internal combustion engineOTSUKI HIROSHI·Filed 2012·Granted Jun 16, 2015·0 cites·19 claims
- 1057US9057298B2Exhaust purification system for internal combustion engineOTSUKI HIROSHI·Filed 2012·Granted Jun 16, 2015·0 cites·16 claims
- 1157US8778053B2Method of removing ash from particulate filterOTSUKI HIROSHI·Filed 2012·Granted Jul 15, 2014·0 cites·7 claims
- 1256US8052959B2Hydrogen supply device and method of supplying hydrogenTOYOTA MOTOR CO LTD·Filed 2007·Granted Nov 8, 2011·0 cites·14 claims
- 1355US8232019B2Fuel cell systemSUEMATSU KEIGO·Filed 2010·Granted Jul 31, 2012·0 cites·1 claims
- 1453US8695399B2Detector for detecting sulfur componentsNISHIOKA HIROMASA·Filed 2009·Granted Apr 15, 2014·2 cites·8 claims
- 1550US2009110990A1Hydrogn supply apparatus and fuel gas supply apparatusTOYOTA JIDOSHA KABUSHKI KAISHA·Filed 2006·Application pending·0 cites
- 1646US8465702B2Exhaust purification system of internal combustion engineTSUKAMOTO YOSHIHISA·Filed 2010·Granted Jun 18, 2013·0 cites·9 claims
- 1744US8834802B2Exhaust purification system of internal combustion engineTSUKAMOTO YOSHIHISA·Filed 2011·Granted Sep 16, 2014·0 cites·4 claims
- 1843US2012240561A1Exhaust purification system of internal combustion engineSOBUE YUICHI·Filed 2009·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Katsuhiko Oshikawa 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 →