Inventor · disambiguated record
Ryohei Maruo
Also filed as: MARUO RYOHEI
14 granted patents·11 pending applications·52 citations·filing 2009–2019
89Inventor score
Files withHITACHI AUTOMOTIVE SYSTEMS LTD21HITACHI ASTEMO LTD1KOIZUMI TOSHIHIRO1MARUO RYOHEI1NAKAZAWA CHIHARU1
Top patents by PatentIndex Score
25 records- 0196US10207690B2Brake apparatusHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2015·Granted Feb 19, 2019·11 cites·20 claims
- 0290US9764723B2Brake unitHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2013·Granted Sep 19, 2017·7 cites·13 claims
- 0387US9527486B2Brake deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2013·Granted Dec 27, 2016·7 cites·17 claims
- 0485US8684473B2Gear pump and gear pump for brake apparatusNAKAZAWA CHIHARU·Filed 2010·Granted Apr 1, 2014·8 cites·15 claims
- 0581US10328919B2Brake apparatus and brake systemHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2014·Granted Jun 25, 2019·5 cites·12 claims
- 0677US10202108B2Brake apparatus and brake systemHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2014·Granted Feb 12, 2019·4 cites·6 claims
- 0777US9242626B2Brake deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2013·Granted Jan 26, 2016·4 cites·20 claims
- 0867US9428168B2Brake deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2013·Granted Aug 30, 2016·2 cites·19 claims
- 0962US11999336B2Stroke simulator and brake control apparatusHITACHI ASTEMO LTD·Filed 2019·Granted Jun 4, 2024·0 cites·12 claims
- 1061US8257070B2Seal apparatus of gear pumpMARUO RYOHEI·Filed 2009·Granted Sep 4, 2012·3 cites·23 claims
- 1158US2017349155A1Brake unitHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Application pending·0 cites
- 1253US8579616B2Gear pumpKOIZUMI TOSHIHIRO·Filed 2009·Granted Nov 12, 2013·1 cites·30 claims
- 1345US2016264114A1Brake ApparatusHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2014·Application pending·0 cites
- 1442US10562504B2Master cylinder unitHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2016·Granted Feb 18, 2020·0 cites·5 claims
- 1539US10668909B2Master cylinder unitHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2016·Granted Jun 2, 2020·0 cites·6 claims
- 1639US2019039590A1Brake Apparatus, Brake System, and Master CylinderHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Application pending·0 cites
- 1739US2019329748A1Hydraulic Control Apparatus and Brake SystemHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Application pending·0 cites
- 1839US2019217834A1Hydraulic Control Apparatus and Brake SystemHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Application pending·0 cites
- 1939US2021221345A1Hydraulic Control Apparatus and Brake SystemHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Application pending·0 cites
- 2038US2020254989A1Hydraulic Control Device and Brake SystemHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2016·Application pending·0 cites
- 2137US10207691B2Brake apparatusHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2015·Granted Feb 19, 2019·0 cites·17 claims
- 2237US2018265060A1Brake Device and Brake SystemHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2016·Application pending·0 cites
- 2337US2018245573A1Hydraulic Control Apparatus and Brake SystemHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2016·Application pending·0 cites
- 2436US2017182988A1Brake Apparatus and Master CylinderHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2015·Application pending·0 cites
- 2529US2018037203A1Hydraulic Control Apparatus and Brake SystemHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →