Inventor · disambiguated record
Hidehiko Koyashiki
Also filed as: KOYASHIKI HIDEHIKO
8 granted patents·2 pending applications·35 citations·filing 2002–2014
81Inventor score
Files withYAMADA MFG CO LTD5HITACHI UNISIA AUTOMOTIVE LTD2KOYASHIKI HIDEHIKO1SHIOBARA KATSUYOSHI1UNISIA JECS CORP1
Top patents by PatentIndex Score
10 records- 0172US6705281B2Piston for an internal combustion engineUNISIA JECS CORP·Filed 2002·Granted Mar 16, 2004·18 cites·13 claims
- 0262US10253661B2Relief device for oil pumpYAMADA MFG CO LTD·Filed 2014·Granted Apr 9, 2019·1 cites·4 claims
- 0362US7168638B2Fuel injection valveHITACHI UNISIA AUTOMOTIVE LTD·Filed 2004·Granted Jan 30, 2007·9 cites·5 claims
- 0461US9341093B2Control valveYAMADA MFG CO LTD·Filed 2013·Granted May 17, 2016·1 cites·11 claims
- 0556US8201525B2Cooling device for engineSHIOBARA KATSUYOSHI·Filed 2009·Granted Jun 19, 2012·6 cites·8 claims
- 0648US9109479B2Engine lubrication control systemYAMADA MFG CO LTD·Filed 2013·Granted Aug 18, 2015·0 cites·7 claims
- 0745US9212780B2Control valveYAMADA MFG CO LTD·Filed 2013·Granted Dec 15, 2015·0 cites·11 claims
- 0845US9068485B2Engine lubrication control systemYAMADA MFG CO LTD·Filed 2013·Granted Jun 30, 2015·0 cites·18 claims
- 0941US2012024243A1Engine cooling apparatusKOYASHIKI HIDEHIKO·Filed 2011·Application pending·0 cites
- 1036US2004188550A1Fuel injection valveHITACHI UNISIA AUTOMOTIVE LTD·Filed 2004·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →