Inventor · disambiguated record
Yoshiro Umezawa
Also filed as: UMEZAWA YOSHIRO
3 granted patents·1 pending application·14 citations·filing 2007–2017
62Inventor score
Top patents by PatentIndex Score
4 records- 0175US8763634B2Relief device for oil pumpAKAISHI NOBUYUKI·Filed 2012·Granted Jul 1, 2014·8 cites·5 claims
- 0260US8297307B2Relief valve structureKUROKAWA YOSHITAKA·Filed 2009·Granted Oct 30, 2012·6 cites·3 claims
- 0344US10247204B2Hydraulic control apparatus and hydraulic control methodYAMADA MFG CO LTD·Filed 2017·Granted Apr 2, 2019·0 cites·15 claims
- 0443US2007246103A1Relief valveYAMADA MFG CO LTD·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →